JP2019198287A - Harvester - Google Patents

Abstract

To provide a harvester for accurately detecting the yield of a harvest.SOLUTION: The harvester comprises: transport devices 13 and 15 for transporting crops reaped by a reaping device; a sorting device 23 for sorting a harvest from the crops transported by the transport devices 13 and 15; a discharge and transport device 26 for transporting the harvest selected by the sorting device 23 to the upper side of the rear and discharging it to the outside; and yield detecting devices for detecting the yield of the harvest. The yield detecting devices comprises a first yield detecting device 31 disposed upstream in the direction of transport and a second yield detecting device 70 disposed downstream in the direction of transport. The harvester also comprises a yield operation unit 101 which calculates the yield of the harvest on the basis of information detected by the second yield detecting device 70 in a case where a specific condition is satisfied, and calculates the yield of the harvest on the basis of information detected by the first yield detecting device 31 and the second yield detecting device 70 in a case where the specific condition is not satisfied.SELECTED DRAWING: Figure 10

Description

  The present invention relates to a harvester equipped with a harvest amount detection device for detecting a harvest amount of a harvested product.

  The harvesting machine as described above cuts crops (for example, sugarcane) planted in a work area such as a farm with a mowing device, transports the harvested crop with a transport device, and leaves and dust with a sorting device. Etc. are removed, and the harvested product is sorted, and the sorted harvested product is discharged to the outside of a transport vehicle or the like by a discharge transport device (for example, see Patent Document 1).

  The discharge / conveyance device is provided in a rearward inclined posture located on the upper side as the rear side portion is located. The discharge transport device accepts the crop selected at the front lower end, transports the harvest to the rear upper side at the intermediate portion, and discharges the harvest from the discharge portion at the rear upper end to the outside of the transport vehicle etc. ing.

  In the harvesting machine described in Patent Document 1, a harvesting amount detection device is provided in an intermediate portion of the discharge conveyance device. The harvest amount detection device includes a plurality of optical sensors that detect the height of a crop that passes on the transport surface of the discharge transport device, and passes on the transport surface based on detection information of the plurality of optical sensors. The yield is detected by determining the volume of the harvest.

  Moreover, in the harvesting machine described in Patent Document 1, the case where the transport device is provided as an arrangement position of the harvest amount detection device is illustrated separately from the intermediate portion of the discharge transport device. In this case, the transport device includes an upper conveyor and a lower conveyor that can sandwich and transport the harvested crop in the vertical direction. The upper conveyor is provided so that it can move in the vertical direction according to the amount of crop transported, and the crop detection device detects the amount of crop transport as the amount of crop harvested by detecting the amount of movement of the upper conveyor. ing.

International Publication No. 2017/094588

  In the harvesting machine described in Patent Document 1, a case where a harvest amount detection device is provided in the intermediate portion of the discharge conveyance device and a case where the production device is provided in the conveyance device are described. However, since the transport device transports the crop before the crop is sorted by the sorting device, there is a difference between the crop transport amount and the actual crop yield depending on the sorting situation. there is a possibility. Therefore, the harvest amount detection device provided in the transport device may not be able to accurately detect the harvest amount. In addition, depending on the harvesting work situation of the harvester, it may not be possible to accurately detect the harvest amount of the harvest using only the harvest amount detection device provided in the middle part of the discharge transport device. There was room for improvement to detect well.

  In view of this situation, a main problem of the present invention is to provide a harvester that can accurately detect the harvest amount of a harvested product.

A first characteristic configuration of the present invention is a transport device that transports a crop that has been cut by a mowing device, a sorting device that sorts crops from the crop that is transported by the transport device, and a sorting device that has been sorted. A discharge transport device that transports the harvested product to the rear upper side and discharges it to the outside, and a yield detection device that detects the yield of the harvested product,
As the harvest amount detection device, a first harvest amount detection device disposed on the upstream side in the transport direction, and a second harvest amount detection device disposed on the downstream side in the transport direction,
When the specific condition is satisfied, the harvest amount of the harvest is obtained based on the detection information of the second yield detection device, and when the specific condition is not satisfied, the first yield detection is performed. A harvest amount calculation unit for obtaining a harvest amount of the harvest based on detection information of the apparatus and the second harvest amount detection device is provided.

  Since not only the first harvest amount detection device but also the second harvest amount detection device is provided as the harvest amount detection device, between the first harvest amount detection device and the second harvest amount detection device, Even if some processing such as sorting is performed, the harvested product after the processing can be detected by the second harvesting amount detection device, so that some sort of sorting or the like is performed based on the detection information of the second harvesting amount detection device. The yield of the harvest after processing can be calculated | required.

  Therefore, according to the present configuration, it is possible to set the specific condition so that the specific condition is satisfied when the second harvest amount detection device can determine the correct harvest amount of the harvested product. Thereby, when specific conditions are satisfy | filled, the harvest amount calculating part can obtain | require the exact harvest amount of a crop based on the detection information of a 2nd harvest amount detection apparatus. Since the specific condition is not satisfied when the accurate harvest amount of the harvest cannot be obtained only by the detection information of the second harvest amount detection device, the harvest amount calculation unit adds to the detection information of the second harvest amount detection device. Using the detection information of the first harvesting amount detection device, an accurate harvesting amount of the harvested product can be obtained. Therefore, not only when the specific condition is satisfied, but also when the specific condition is not satisfied, the harvest amount calculation unit can accurately determine the harvest amount of the harvest.

  According to a second characteristic configuration of the present invention, the first harvest amount detection device is disposed at a position where a crop conveyed by the transport device is a detection target, and the second harvest amount detection device is the discharge transport device. It is in the point arrange | positioned in the position which makes the detection target the harvest conveyed.

  According to this configuration, since the second harvest amount detection device detects the crop after being sorted by the sorting device, the harvest amount calculation unit is configured to perform the harvest based on the detection information of the second harvest amount detection device. By obtaining the harvest amount, it is possible to accurately obtain the harvest amount of the crop discharged by the discharge transport device. Since the first harvest amount detection device detects the crop that is transported by the transport device, the harvest amount calculation unit obtains the harvest amount of the harvest based on the detection information of the second harvest amount detection device, thereby cutting the crop. It is possible to obtain the harvest amount of the harvest according to the amount of crops collected.

  For example, when the harvesting device, the transport device, the sorting device, and the discharge transport device are in an operating state, the harvest can be detected by the second harvest amount detection device. In such a case, the specific condition is As it is satisfied, the harvest amount calculation unit can obtain the correct harvest amount of the harvest based on the detection information of the second harvest amount detection device. In such a case, since the harvesting device, the transport device, and the sorting device are in the operating state and the discharge transport device is in the non-operating state, the second crop detection device cannot detect the harvest. Can determine that the specific condition is not satisfied, and the harvest amount calculation unit can obtain the harvest amount of the harvest based on the detection information of the first harvest amount detection device in addition to the detection information of the second harvest amount detection device. . As described above, even if the operation states of various devices change, the harvest amount calculation unit can obtain an accurate harvest amount of the harvest according to the states of the operation states of the various devices.

  According to a third characteristic configuration of the present invention, the transport device includes an upper conveyor and a lower conveyor that can sandwich and transport the harvested crop, and the upper conveyor is provided movably according to the amount of crop transported, The first harvesting amount detection device detects the amount of the harvested product by detecting the amount of movement of the upper conveyor, and the second harvesting amount detection device is a harvested product that is transported by the discharge transport device. On the other hand, a non-contact type sensor that detects and operates in a non-contact manner is provided.

  According to this configuration, the first harvesting amount detection device only includes a configuration for detecting the amount of movement of the upper conveyor, and the harvesting amount calculation unit conveys the crop based on the detection information of the first harvesting amount detection device. The amount can be determined accurately and easily. The second harvest amount detection device is equipped with a non-contact type sensor, so that it can properly detect crops without being affected by differences in the amount of water held by the crops or the discharge pressure of the crops. The harvest amount calculator can accurately determine the harvest amount of the harvest based on the detection information of the second harvest amount detection device.

  In the fourth feature configuration of the present invention, when the period in which the specific condition is not satisfied extends over a plurality of detection timings in the first harvest amount detection device and the second harvest amount detection device, the harvest amount calculation unit, Harvesting the harvest at each detection timing in a state in which the total amount detected by the second yield detection device at each detection timing is assigned according to the amount of detection by the first harvest detection device at each detection timing. The point is that it is configured to determine the quantity.

  For example, the specific condition is satisfied, for example, when the harvesting device, the transport device, and the sorting device are in the operating state and the discharge transport device is in the non-operating state during a plurality of detection timings in the first harvest amount detection device. There is a case where the period when it is not performed extends over a plurality of detection timings in the first harvest amount detection device and the second harvest amount detection device. In such a case, the second harvest amount detection device cannot detect the harvest at each detection timing. However, after that, by operating the discharge conveyance device, the second harvest amount detection device detects the crops conveyed by the discharge conveyance device, and the detection amount of the second harvest amount detection device at each detection timing is detected. The total amount can be detected.

  Here, since the harvest (crop) is normally subjected to the detection action in the order of the first harvest amount detection device and the second harvest amount detection device, if the harvest amount based on the detection information of the first harvest amount detection device increases. If the harvest amount based on the detection information of the second harvest amount detection device also increases and the harvest amount based on the detection information of the first harvest amount detection device is small, the harvest amount based on the detection information of the second harvest amount detection device also decreases. For example, a certain correlation is established between the harvest amount based on the detection information of the first harvest amount detection device and the harvest amount based on the detection information of the second harvest amount detection device.

  Therefore, according to this configuration, the harvest amount calculation unit uses the correlation to calculate the total amount of the detection amount by the second harvest amount detection device at each detection timing, and the first harvest amount detection device at each detection timing. In the state of assigning according to the magnitude of the detection amount by, the harvest amount of the harvest at each detection timing can be obtained. That is, if the detection amount by the first harvest amount detection device at a certain detection timing is large, the detection amount by the second harvest amount detection device at the detection timing is also assigned as large. Conversely, if the detection amount by the first harvest amount detection device at a certain detection timing is small, the detection amount by the second harvest amount detection device at that detection timing is also assigned as small.

  As described above, even when the period in which the specific condition is not satisfied extends over a plurality of detection timings in the first harvest amount detection device and the second harvest amount detection device, the harvest amount calculation unit detects the second yield amount. By assigning the total amount detected by the apparatus according to the amount detected by the first harvest amount detection device at each detection timing, the harvest amount of the harvest at each detection timing can be accurately obtained. Therefore, since the harvest amount calculation unit can grasp the harvest amount of the harvest in time series, it can appropriately grasp what harvest amount is at what kind of cutting timing.

Side view showing schematic configuration of harvester A plan view showing a state where the harvester and the transport vehicle are running side by side Perspective view showing the discharge transport device The perspective view which expanded the termination part of the discharge conveyance device The perspective view which looked at the termination part of the discharge conveyance device from the discharge part side The perspective view which abbreviate | omitted a part of member in the termination | terminus part of discharge conveyance apparatus The figure which shows the detection state by the 2nd harvest amount detection apparatus. The figure which shows a back conveyance apparatus and the 1st harvest amount detection apparatus Perspective view showing the usage posture of the ladder Control block diagram showing the control configuration of the harvester The figure which shows the traveling state of the harvester and the transport vehicle in the work area Flow chart showing the operation of the harvest amount calculation unit Graph for explaining allocation calculation processing Diagram showing harvest amount image information

An embodiment of a harvester according to the present invention will be described with reference to the drawings.
As shown in FIG. 1, the harvester 1 is configured as a sugar cane harvester, for example, using a sugar cane as a crop to be harvested. The harvester 1 is not limited to a sugarcane harvester, and may be a harvester that harvests other crops, and various harvesters can be applied.

  As shown in FIG. 1, the harvester 1 has a machine frame 3 supported on a traveling device 2, and an engine 30 as a drive source is provided above the center of the machine frame 3 in the front-rear direction. ing. A pair of left and right crop dividers 4 are provided at the front portion of the body frame 3 through a lifting link mechanism 5 so as to be lifted and lowered. For example, a crawler type traveling device is applied as the traveling device, but a foil type traveling device can also be applied.

  The crop divider 4 includes a weed frame 6 in a rearward tilt position that is located on the rear side toward the upper side, and a pair of left and right augers 7 in a rear tilt position substantially parallel to the weed frame 6. The auger 7 is rotatably supported by the weed frame 6 and is configured to be rotated by a hydraulic motor or the like disposed on the top of the weed frame 6. The harvesting machine 1 is drawn into the machine by the crop divider 4 while causing sugarcane. Side cutters 8 are provided on the upper portions of the pair of left and right crop dividers 4 so that the upper portions of the ridges that are intertwined when retracted by the crop divider 4 can be cut. The top cutter 10 is arranged in a state of protruding forward from the upper part of the cutting part mounting frame 9 so that the upper part of the sugar cane can be cut by the top cutter 10.

  The elevating link mechanism 5 includes a pair of left and right upper links 5 a that connect the weed frame 6 and the cutting part mounting frame 9, and a pair of left and right lower links that connect the weed frame 6 and the cutting part mounting frame 9. And a link 5b. The crop divider 4 is moved up and down by extending and retracting the lifting cylinder 5c.

  On the rear side of the crop divider 4, a scraping rotor 11, a base cutter 12, and a front transport device 13 (corresponding to a transport device) are supported by a front transport frame 14. A pair of left and right front transport frames 14 are provided, and a rear portion thereof is pivotally supported by a support frame (not shown) that supports a rear transport device 15 (corresponding to the transport device) so as to be vertically rotatable. A hydraulic cylinder or the like is provided between the front conveyance frame 14 and the body frame 3, and the front conveyance frame 14 is rotated up and down by extending and contracting the hydraulic cylinder so that the take-up rotor 11 and the base cutter 12 The height is adjustable.

  As shown in FIG. 2, the take-up rotor 11 is disposed at the front part of the left and right front transport frames 14 (see FIG. 1) and has a rotation shaft having an axial center along the left-right direction, and is disposed on the rotation shaft. The rotating shaft is rotationally driven by a hydraulic motor or the like.

  As shown in FIG. 1, the base cutter 12 is disposed on the outer periphery of a pair of left and right support cylinders 12a extending downward from the front part of the front transport frame 14 and a support disk fixed to the lower end of the support cylinder 12a. A plurality of cutting blades 12b and a rod-like spiral 12c fixed on a support disk are provided, and the cutting blade 12b and the spiral 12c are rotated by a hydraulic motor or the like.

  As the harvesting device, a crop divider 4, a side cutter 8, a base cutter 12, a top cutter 10 and the like are provided, and the harvesting device is disposed at the front portion of the traveling device 2. In the harvesting machine 1, the sugar cane is weeded by the crop divider 4, and the upper and left and right sides of the sugar cane are cut by the side cutter 8 and the top cutter 10. The sugar cane is scraped by the rotation of the take-up rotor 11, the stock is cut by the rotation of the cutting blade 12b of the base cutter 12, and at the same time, the lower end (root) of the kite is flipped up by the rotation of the spiral 12c. . The sugarcane bounced up is drawn from the base into the front conveying device 13 disposed immediately after that, and conveyed obliquely rearward and upward by the feed roller 16 of the front conveying device 13.

  The front conveying device 13 includes a plurality of pairs of upper and lower pairs of feed rollers 16 having an axial center in the left-right direction, arranged in the front-rear direction, and both sides of the roller shaft of the feed roller 16 are rotatably supported by left and right conveyance cases. . The upper roller shaft is configured to be able to transmit power by a chain, and the lower roller shaft is configured to be able to transmit power by a gear, and is configured to rotationally drive the feed roller 16 by a hydraulic motor or the like.

  A rear portion of the front transport device 13 is disposed at a front lower portion of the rear transport device 15. The post-conveying device 15 includes a lower conveyor 17 and an upper conveyor 18. The sugar cane after being cut by the base cutter 12 is sent to the rear side by the front conveying device 13, inherited by the rear conveying device 15, and obliquely rearward and upward while being sandwiched between the upper conveyor 18 and the lower conveyor 17. Be transported.

  A chopping device 19 is disposed at the rear of the rear conveying device 15. The chopping device 19 includes a cutter 20 and a bounce roller 21. In the cutter 20, a pair of upper and lower cutter shafts having an axial center in the left-right direction is rotatably supported by a cutter case, and a blade blade is fixed on the cutter shaft by shifting the phase by 180 degrees. By rotating the upper and lower blade blades so that they come into contact with each other, the sugar cane is shredded when passing between the upper and lower blade blades.

  The spring roller 21 has a pair of upper and lower rotary shafts having shaft centers in the left and right directions supported by the left and right side plates of the cutter case, and a spring blade is fixed on the rotary shaft. By rotating the upper and lower rotating shafts in directions opposite to each other, the chopped sugar cane jumps back upward and is forcibly sent upward. Incidentally, the cutter 20 and the jump roller 21 are rotationally driven by a hydraulic motor or the like.

  A diffusion case 22 is connected to the rear part of the discharge port of the chopping device 19, and a diffusion rotor is disposed at the front lower part of the diffusion case 22. The diffusion rotor includes a rotation shaft having an axial center in the left-right direction, and a plurality of brushes are fixed radially on the rotation shaft. By rotating the diffusion rotor, the sugar cane stems and leaves shredded by the cutter 20 and discharged rearward and upward by the splashing roller 21 are splashed upward by the rotating brush and diffused.

  The wind selection device 23 (corresponding to a selection device) includes a blower case 24 provided at the upper rear portion of the diffusion case 22 and a blower 25 housed in the blower case 24. The blower case 24 has an opening on the lower side and an upper side, the lower side opening communicates with the chopping device 19, and the upper side opening is configured as an outlet for stems, leaves, and the like. The blower case 24 is rotatable about a vertical axis, and is configured such that the discharge direction can be changed by the rotation. By rotating and driving the blower 25, a high-speed air flow from the lower side to the upper side is generated, and sugarcane leaves and the like are pushed upward and discharged to the side or rear, and the heavy stem is discharged to the lower side. It is made to fall on the hopper 27 provided in 26 lower part.

  The lower part of the discharge transport device 26 is supported on a swivel base 28 provided at the rear part of the machine body frame 3, and the discharge transport device 26 is supported on the swivel base 28 so as to be turnable in the left-right direction. The discharge conveyance device 26 is configured to be capable of changing the discharge direction by rotating left and right around the vertical axis by a hydraulic motor. A discharge unit 60 at the upper rear end of the discharge conveyance device 26 is provided with a deflector 29 so that the dropping direction can be changed.

  When harvesting sugarcane with the harvester 1, as shown in FIG. 2, the harvester 1 and the transport vehicle 40 run side by side, and as shown by the dotted line in FIG. The discharge direction is changed by operating a hydraulic motor or the like so that the 26 discharge units 60 face the loading platform 40A of the transport vehicle 40. As a result, the harvester 1 and the transport vehicle 40 run side by side, and the sugar cane is harvested while the sugar cane harvested by the harvester 1 is transferred to the external transport vehicle 40 by the discharge transport device 26. Yes. The harvesting machine 1 is configured to be able to transfer the harvested crop to the transporting vehicle 40 that is in a parallel running state by adjusting the discharging direction of the discharging and conveying device 26.

The discharge transport device 26 will be described with reference to FIGS. 1 and 3.
As shown in FIG. 1, the discharge conveyance device 26 has a driving roller 52 disposed at the lower portion between the left and right conveyance frames 51, an upper driven roller 53 disposed, and the driving roller 52 and the driven roller 53. The left and right transport chains 54 are wound. As shown in FIG. 3, a conveyance bottom plate 56 serving as a conveyance surface is spanned between the left and right conveyance chains 54, and a plurality of partition plates 57 are provided on the conveyance bottom plate 56 at a predetermined predetermined interval. ing. The conveyance chain 54 is driven to be wound around the drive roller 52 and the driven roller 53, so that the conveyance body including the conveyance bottom plate 56 and the partition plate 57 is wound around the drive roller 52 and the driven roller 53. It is comprised so that conveyance drive is possible. Thereby, the discharge conveyance device 26 is configured to convey the harvest from the front lower side to the rear upper side in a state where the harvest (sugar cane) is stored in the space surrounded by the conveyance bottom plate 56 and the partition plate 57. Has been. Each of the left and right transport frames 51 is provided with an upright wall portion 61 that extends upward from the upper end of the left and right transport frames 51, and the crop falls from the space surrounded by the transport bottom plate 56 and the partition plate 57 to the outside in the left-right direction. Is preventing. A large number of slits (not shown) are formed in the transport bottom plate 56 so that dust or the like contained in the harvested product falls downward from the slits.

  As shown in FIGS. 1 and 3, the discharge conveyance device 26 includes a main conveyance part 58 in a rear inclined posture extending from the front lower side to the rear upper side and a terminal part 59 bent in the horizontal direction from the main conveyance part 58. And have. The hopper 27 is disposed at the front lower end portion of the main conveyance portion 58, and the discharge portion 60 is disposed at the rear end portion of the termination portion 59. The discharge transport device 26 sequentially stores the harvested product (sugar cane) received by the hopper 27 into the space surrounded by the transport bottom plate 56 and the partition plate 57 and transports the harvested product (sugar cane) to the discharge unit 60. It is configured.

  As shown in FIGS. 6 and 8, the harvester 1 is provided with harvest amount detection devices 31 and 70 that detect the harvest amount of the harvested product. As the harvest amount detection devices 31, 70, a first harvest amount detection device 31 disposed on the upstream side in the transport direction and a second harvest amount detection device 70 disposed on the downstream side in the transport direction are provided.

Based on FIG. 8, the 1st yield detection apparatus 31 is demonstrated.
The first harvest amount detection device 31 is arranged at a position where a crop conveyed by the post-conveying device 15 is a detection target. The post-conveying device 15 includes a lower conveyor 17 and an upper conveyor 18. The lower conveyor 17 is arranged in parallel in a state where a plurality of lower conveyance rollers 33 supported in a left-right direction between the left and right conveyance frames 32 are arranged in the front-rear direction. A gear or a sprocket or the like is fixed to one end portion of the rotating shaft of the lower conveying roller 33, and power is transmitted via a chain or gear by a hydraulic motor.

  An upper conveyor 18 is disposed above the lower conveyor 17 at a predetermined interval. The upper conveyor 18 has a plurality of upper conveying rollers 34 arranged in parallel in a state of being lined up in the front-rear direction. The rotation shaft 35 of the upper conveyance roller 34 is rotatably supported at one end of a chain case 36 extending in the front-rear direction. The chain case 36 is configured as a conveyance roller support portion that supports the upper conveyance roller 34, and power is transmitted to the upper conveyance roller 34 via the chain of the chain case 36. The left and right sides of the rotation shaft 35 of the upper transport roller 34 are inserted into elongated holes 37 formed in an arc shape in the transport frame 32. The other end of the chain case 36 is swingably supported by a swing shaft 38 extending in the left-right direction, and both left and right ends of the swing shaft 38 are rotatably supported by the transport frame 32. The upper conveying roller 34 is provided so as to be movable up and down with the rotating shaft 35 guided by the long hole 37, so that the chain case 36 swings around the swing shaft 38 as the upper conveying roller 34 moves up and down. It is configured.

  When a crop (sugar cane) is sent from the front transport device 13 to the rear transport device 15, the crop is transported between the lower conveyor 17 and the upper conveyor 18, and the lower transport roller 33 and the upper transport roller 34 rotate. The crop is conveyed backward by the lower conveyance roller 33 and the upper conveyance roller 34 by driving. At this time, since the upper conveyance roller 34 is movable up and down, the crop conveyed by its own weight is pressed from above, and the crop is moved backward while being sandwiched between the lower conveyance roller 33 and the upper conveyance roller 34. Conveying. Since the upper conveyance roller 34 moves up and down in accordance with the amount of crops to be conveyed, the amount of vertical movement of the upper conveyance roller 34 is the amount of swing of the chain case 36.

  Therefore, the swing base of the chain case 36 is provided with a first harvest amount detection device 31 that detects the swing amount of the chain case 36. The first harvest amount detection device 31 is configured by, for example, an angle sensor, and detects the amount of movement of the upper transport roller 34 according to the crop transport amount. As shown in FIG. 10, detection information of the first harvest amount detection device 31 is input to the control unit 100. The harvest amount calculation unit 101 of the control unit 100 obtains the sectional area of the crop using correction values, parameters, and the like in addition to the detection information of the first harvest amount detection device 31, and the obtained sectional area of the crop and post-conveyance The volume of the crop is determined from the transport speed and transport time of the device 15, and the transport amount of the crop is determined as the harvest amount of the harvest.

  Hereinafter, the second harvest amount detection device 70 will be described with reference to FIGS. 1 and 3 to 7. 4 is an enlarged perspective view of the end portion 59 of the discharge conveyance device 26, and FIG. 5 is a perspective view of the end portion 59 of the discharge conveyance device 26 as viewed from the discharge portion 60 side with some members omitted. It is. FIG. 6 shows a state in which members surrounding the second harvest amount detection device 70 are omitted, and FIG. 7 shows a detection state of the second harvest amount detection device 70.

  As shown in FIG. 6, the second harvest amount detection device 70 is arranged at a position where the harvested product conveyed by the discharge conveyance device 26 is a detection target. The second harvest amount detection device 70 is disposed above the end portion 59 of the discharge conveyance device 26. At the end portion 59 of the discharge conveyance device 26, each of the left and right conveyance frames 51 is provided with a plate-like support 71 extending upward, and the second harvest amount detection device 70 is on the upper end side of the left and right support 71. It is provided in a state extending over a part.

  As shown in FIG. 6, the second yield detection device 70 includes a cylindrical body 72 in which a plurality of plate-like bodies are combined, and a plurality of optical sensors 73 disposed in the internal space of the cylindrical body 72. Is provided. The cylindrical body 72 is formed in a rectangular cylindrical shape having a front surface portion 72a, an upper surface portion 72b, a rear surface portion 72c, and a lower surface portion 72d, and has a length over the entire length in the conveyance lateral width direction in the discharge conveyance device 26. The cylindrical body 72 is provided in a state extending over the upper end side portions of the left and right support bodies 71. The plurality of optical sensors 73 (for example, three) are arranged at intervals in the conveyance width direction of the discharge conveyance device 26.

  As shown in FIG. 7, the optical sensor 73 is configured in a non-contact manner that detects and operates in a non-contact manner on the harvested product A conveyed by the discharge conveyance device 26. The optical sensor 73 is composed of, for example, a laser distance sensor that measures the distance from the round trip time until the projected laser beam hits the detection target and bounces back to the detection target. The optical sensor 73 projects the laser beam downward while discharging the laser beam from the light projecting / receiving unit 73a through a hole 72e formed in the lower surface 72d of the cylindrical body 72. The distance to the crop A conveyed by the device 26 is measured to detect the height of the crop A. As shown in FIG. 10, detection information of the second harvest amount detection device 70 (optical sensor 73) is input to the control unit 100. The harvest amount calculation unit 101 of the control unit 100 obtains the sectional area of the harvested product A from the height of the harvested product A in each of the plurality of optical sensors 73, and obtains the sectional area of the harvested product A and the discharge transport device. The volume of the harvest A is obtained from the conveyance speed and the conveyance time of 26, and the harvest amount of the harvest A is obtained.

  Returning to FIG. 1, the second harvesting amount detection device 70 is provided at the end portion 59 that is the portion immediately before the discharging portion 60 of the discharging and conveying device 26 in the conveying direction. The yield can be accurately detected without detecting it again. Since the end portion 59 is a portion bent in the horizontal direction with respect to the main transfer portion 58, the transfer posture of the harvested product itself is in a stable posture. The detection accuracy can be improved.

  Since the discharge transport device 26 stores and transports the harvested product (sugar cane) in the space surrounded by the transport bottom plate 56 and the partition plate 57, the harvesting process is performed in both the transport direction and the transport width direction in the transport process. It is possible to equalize the height of objects. Thereby, the height of the crop that has been equalized by the optical sensor 73 can be detected without causing an extreme difference in the height of the crop, and the detection accuracy of the harvest amount of the crop can be improved. Can be achieved.

  In the discharge transport device 26, as described above, a plurality of slits are formed in the transport bottom plate 56, and the harvested product is transported to the rear upper side. Therefore, even if the harvest contains dust or the like, Dust and the like can be removed while using. As a result, when the harvest reaches the second harvest amount detection device 70 provided at the end portion 59, most of the dust and the like is dropped, and the light projecting / receiving unit 73a of the optical sensor 73 is removed. Therefore, it is possible to prevent dust and the like from adhering. In this respect as well, it is possible to improve the detection accuracy, reduce the frequency of maintenance work, and reduce the maintenance work.

  As shown in FIG. 4, the end portion 59 of the discharge conveyance device 26 includes a first frame body 74 and a second frame body 75 that surround the arrangement space of the second harvest amount detection device 70. Each of the left and right transport frames 51 is provided with an arch-shaped first frame 74 that extends upstream and downstream in the transport direction, and two second frames that connect the left and right first frames 74 to each other. 75 is provided. The first frame 74 and the second frame 75 are configured in a pipe shape. A rectangular hollow space is formed in a plan view and a side view surrounded by the first frame body 74 and the second frame body 75, and the second harvest amount detection device 70 is arranged inside the aerial space. The support 71 that supports the second yield detection device 70 is disposed at the center of the first frame 74 in the transport direction of the discharge transport device 26, and the center of the first frame 74 in the transport direction of the discharge transport device 26. The second harvest amount detection device 70 is disposed in the section.

  As shown in FIG. 4, the 1st connection body 76 and the 2nd connection body 77 which connect the left and right 1st frame bodies 74 are provided. The first connecting body 76 is constituted by a bent plate-like body that is bent and formed having left and right side surface portions 76 a and an upper surface portion 76 b, and connects the front end side portions of the left and right first frame bodies 74. . The first connecting body 76 is provided in a state in which the left and right side surface portions 76 a are continuous upward from the standing wall portion 61. In the first coupling body 76, the front end portion of the side surface portion 76 a is coupled to the first frame body 74, and the rear end portion of the side surface portion 76 a is coupled to the support body 71 that supports the second yield detection device 70. Similarly to the first connecting body 76, the second connecting body 77 is also formed of a bent plate-like body that is bent and formed with left and right side surface portions 77 a and upper surface portions 77 b. The rear end side parts are connected to each other. The second connecting body 77 is provided in a state in which the left and right side surfaces 77 a are continuous upward from the upright wall 61. In the second connecting body 77, the rear end portion of the side surface portion 77 a is connected to the first frame body 74, and the front end portion of the side surface portion 77 a is connected to the support body 71 that supports the second harvest amount detection device 70. In this way, the left and right sides of the second yield detection device 70 are covered in series by the first connecting body 76, the support body 71, and the second connecting body 77.

  As shown in FIG. 4, a covering 87 that covers the upper side of the second harvest amount detection device 70 is provided. The covering 87 is made of an elastic body such as a flexible rubber plate, for example. The covering body 87 is provided in a state extending over the upper surface portion 76 b of the first connecting body 76 and the upper surface portion 77 b of the second connecting body 77. Thereby, not only the right and left sides of the second harvest amount detection device 70 but also the upper side of the second harvest amount detection device 70 is covered with the covering 87, thereby shielding the second harvest amount detection device 70 from light. Therefore, the measurement by the optical sensor 73 can be performed with high accuracy.

  As shown in FIG. 4, in the discharge conveyance device 26, the front side abutment that is capable of coming into contact with the crop conveyed by the discharge conveyance device 26 is located upstream of the second harvest amount detection device 70 in the conveyance direction. A contact body 78 (corresponding to the contact portion) is provided. The front contact body 78 is formed of an elastic body such as a rubber plate having flexibility. The front-side contact body 78 has an upper end portion attached to the upper surface portion 76b of the first coupling body 76, and is provided in a hanging posture extending from the upper side to the lower side. Thereby, when the front contact body 78 contacts the harvested product from above, the height of the harvested product can be equalized in both the transport direction and the transport lateral width direction.

  As shown in FIG. 5, in the discharge conveyance device 26, a portion before the discharge unit 60 on the downstream side in the conveyance direction with respect to the second harvest amount detection device 70, with respect to the crop conveyed by the discharge conveyance device 26. A rear abutting body 79 is provided. The rear contact body 79 is made of an elastic body such as a flexible rubber plate. The rear abutting body 79 has an upper end portion attached to the upper surface 77b of the second connecting body 77 and is provided in a hanging posture extending from the upper side to the lower side.

  In this way, by providing not only the front contact body 78 but also the rear contact body 79, in addition to contacting the harvested product from above and before and after the second harvest amount detection device 70, the first The front side and the rear side of the two harvest amount detection device 70 can be covered with the front contact body 78 and the rear contact body 79. Therefore, the front contact body 78 and the rear contact body 79 can shield the second harvest amount detection device 70 from light.

  The second harvest amount detection device 70 is disposed at a high position of the end portion 59 of the discharge conveyance device 26. Therefore, as shown in FIGS. 1, 3, and 4, in order to perform maintenance work and the like of the second harvest amount detection device 70, the discharge conveyance device 26 is provided with a ladder 80 on the outer side of the conveyance frame 51. ing. As shown in FIGS. 3 and 4, a ladder frame 81 is provided on the outer side of the transport frame 51 at a terminal end portion 59 of the discharge transport device 26, and a ladder 80 is attached to the ladder frame 81.

  As shown in FIG. 4, the ladder 80 includes left and right columns 82, a step portion 83 that extends across the left and right columns 82, and a connecting portion 84 that connects upper ends of the left and right columns 82. The left and right support columns 82 are provided to be swingable with respect to the connecting portion 84 around the first axis P1 of the first swing shaft portion 85. The connecting portion 84 is connected to the ladder frame 81 so as to be swingable around the second axis P <b> 2 of the second swing shaft portion 86.

  As shown in FIGS. 1 and 3, the ladder 80 is stored in the outer end portion of the transport frame 51 along the transport direction of the discharge transport device 26, and as shown in FIG. 9, the discharge transport device 26 is configured to be freely changeable to a use posture that extends downward from the terminal portion 59 of the 26 and contacts the lower ends of the left and right support columns 82 to the ground or the like. As shown in FIGS. 1 and 3, the ladder 80 is within a range of the vertical width of the transport frame 51 so that the ladder 80 does not protrude upward or downward from the discharge transport device 26 in the storage position. Is provided. The ladder 80 is held in a lock portion (not shown) regardless of whether the ladder 80 is changed to the storage position or the attitude is changed to the use position.

  When the posture of the ladder 80 is changed from the stowed posture to the use posture, as shown in FIG. 4, the connecting portion 84 is swung rearward around the second axis P2 with respect to the ladder frame 81, and the connecting portion The left and right columns 82 are swung around the first axis P <b> 1 toward the side away from the conveyance frame 51 with respect to 84. As described above, the worker or the like simply performs two swinging operations of swinging the connecting portion 84 with respect to the ladder frame 81 and swinging the left and right support columns 82 with respect to the connecting portion 84. As shown in FIG. 9, the ladder 80 can be changed from the stowed position to the use position. Even when the posture of the ladder 80 is changed from the use posture to the storage posture, the connecting portion 84 is swung with respect to the ladder frame 81 with the swinging direction as the opposite side, and the left and right struts 82 are moved with respect to the connecting portion 84. It is only necessary to perform two rocking operations of rocking.

  The support when the ladder 80 is in the use posture is supported at one point on the upper side (the first swinging shaft 85 that is a connecting portion between the connecting portion 84 and the ladder frame 81) and two points on the lower side (the left and right support columns 82). And the lower end of each of the three). As a result, regardless of the inclination angle of the discharge transport device 26 and the inclination angle of the ground, the connecting portion 84 is swung around the second axis P2 with respect to the ladder frame 81, and the ladder 80 can be supported in a use posture. Further, even when the height between the ladder 80 and the ground is different, by swinging the left and right support columns 82 around the first axis P1 with respect to the connecting portion 84, while absorbing the difference in height, The ladder 80 can be supported in the use posture.

  As shown in FIG. 10, the harvester 1 includes a control unit 100 that controls the operation of the harvester 1. The control unit 100 includes a crop divider 4, a side cutter 8, a top cutter 10, and a base cutter 12, a cutting device, a traveling device 2, a take-in rotor 11, a front conveying device 13, a rear conveying device 15, a chopping device 19, It is configured to control the operation of the harvester 1 by controlling the operating states of various devices and devices such as the wind selector 23, the discharge transport device 26, the swivel base 28, and the deflector 29. The control unit 100 is configured to control the operating states of various devices and devices based on operations performed by a pilot using various operation tools such as an operation pedal, an operation lever, and an operation switch.

  As shown in FIG. 2, the control unit 100 activates various devices and devices, so that the harvester 1 and the transport vehicle 40 run side by side, and the sugarcane harvested by the harvester 1 is discharged and conveyed 26. The sugar cane is harvested while being transferred to an external transport vehicle 40. However, when the sugarcane is harvested by the harvester 1 in a work area such as a farm field, the harvester 1 and the transport vehicle 40 cannot run in the whole work area. For example, as shown in FIG. In addition, in the end side area S2 of the work area S, a space for the transporting vehicle 40 to run side by side cannot be secured, for example, the turning radius for the transporting vehicle 40 to turn can not be secured. The vehicle 40 cannot run side by side.

  Therefore, as shown in FIG. 11, the central area S1 of the work area S is a parallel running area in which the harvester 1 and the transport vehicle 40 can run in parallel, and the central area S1 is harvested as shown in FIG. The machine 1 and the transport vehicle 40 run side by side, and the sugar cane is harvested while the sugar cane harvested by the harvester 1 is transferred to the external transport vehicle 40 by the discharge transport device 26.

  As shown in FIG. 11, the end side area S2 of the work area S is set as a turning area where the harvesting machine 1 turns alone, and the harvesting machine 1 turns around the end side area S2 alone. The harvesting machine 1 performs the harvesting operation in a state where the harvested product (sugar cane) is stored in the hopper 27 without being discharged by the discharge conveying device 26. In this case, the control unit 100 includes a crop divider 4, a side cutter 8, a top cutter 10, a base cutter 12, and other cutting devices, a front transport device 13, a rear transport device 15, a chopping device 19, and a wind selector. Devices and equipment other than the discharge conveyance device 26 such as the device 23 are in an operating state, and the discharge conveyance device 26 is in a non-operational state. In FIG. 11, for the sake of easy understanding of the travel route when the harvester 1 turns, a simple turning travel route is illustrated, but actually, the travel route according to the driver's driving operation. Will be followed. Incidentally, in FIG. 11, the travel route of the harvester 1 is shown with an interval in the vertical direction in order to make the contents shown in the figure easy to understand.

  In this way, the harvester 1 and the transport vehicle 40 run side by side and are harvested by the harvester 1 up to the first point V1 that is the end point of the center side region S1 (start point of the end side region S2). The sugar cane is harvested while being transferred to the external transport vehicle 40 by the discharge conveyance device 26. From the first point V1 to the second point V2, which is the start point of the center side region S1 (end point of the end side region S2), the harvester 1 travels alone, and the harvester 1 sends the harvest to the hopper 27. Harvesting is carried out in the state of storage. When the harvester 1 reaches the second point V2, the harvesting operation by the parallel running of the harvester 1 and the transport vehicle 40 is resumed.

  Here, when the harvester 1 reaches the first point V1, the control unit 100 discharges and conveys all the harvested crops to the transport vehicle 40 in accordance with the operation of the operation tool by the operator. The operation of the device 26 is controlled. As a result, the harvesting operation is performed by turning the harvester 1 alone in a state where the capacity for storing the harvested product in the hopper 27 is secured. When the harvester 1 moves from the first point V1 to the second point V2 and the transport vehicle 40 is placed on the harvester 1 at the discharge timing, the control unit 100 performs the first operation according to the operation of the operation tool by the operator. The operation of the discharge / conveyance device 26 is controlled so that all of the harvested crops from the first point V1 to the second point V2 are transferred to the transporting vehicle 40.

  When the harvesting operation is performed by the traveling of the harvester 1 alone, not only when the harvesting operation is performed in the end side area S2 of the work area S but also when the transporting vehicle 40 cannot run at the same time, for example, at the start of the harvesting operation. In this case, the harvesting operation can be performed by the traveling of the harvester 1 alone. In addition, when the load of the harvested product of the transport vehicle 40 is full, the transport vehicle 40 moves away from the harvester 1 and travels toward a transport location such as a factory. The harvesting operation can be performed by one traveling alone. Furthermore, even when time is available until the next transport vehicle 40 runs side by side, the harvesting operation can be performed by the traveling of the harvester 1 alone.

  As shown in FIG. 10, the detection information of the first harvest amount detection device 31 and the detection information of the second harvest amount detection device 70 are input to the control unit 100, and the harvest amount calculation unit 101 of the control unit 100 is Using the detection information of the first harvest amount detection device 31 and the detection information of the second harvest amount detection device 70, the harvest amount of the harvest is obtained. Since the second harvesting amount detection device 70 detects the harvested product conveyed by the discharge conveying device 26, in order to obtain the harvested amount of the harvested material discharged by the discharging and conveying device 26, the harvesting amount The calculation unit 101 can determine the harvest amount of the harvested product by using the detection information of the second harvesting amount detection device 70 to determine the harvested amount of the harvested product.

  As described above, when the harvester 1 and the transport vehicle 40 run in parallel as in the central area S1 of the work area S, the harvested crops are sequentially sent to the second harvest amount detection device 70. Since it is conveyed, the harvest amount calculation unit 101 obtains the harvest amount of the harvest using the detection information of the second harvest amount detection device 70, thereby grasping the harvest amount of the harvest in time series. Can do.

  However, when the harvesting work is performed by the single traveling of the harvester 1 as in the end side area S2 of the work area S, the harvested harvest is stored in the hopper 27, for example, the harvester 1 When the transport vehicle 40 is placed on the harvesting machine 1 at the second point V2 and the discharge timing is reached, all the harvested products harvested in the harvesting operation by the single traveling are discharged from the discharge conveying device 26. Therefore, the harvest amount calculation unit 101 can grasp the total amount of the crops harvested by the harvesting operation by the single traveling only by obtaining the harvest amount of the harvest using the detection information of the second harvest amount detection device 70. However, it is not possible to grasp the harvest amount of the harvest in time series.

  Therefore, as shown in the flowchart of FIG. 12, the harvest amount calculation unit 101 performs normal calculation processing for obtaining the harvest amount of the harvest using the detection information of the second harvest amount detection device 70 when the specific condition is satisfied. (Yes in step # 1, step # 2) When the specific condition is not satisfied, the harvest amount calculation unit 101 uses not only the detection information of the second harvest amount detection device 70 but also the detection information of the first harvest amount detection device 31 to harvest the harvested product. An allocation calculation process for obtaining the quantity is performed (in the case of No in Step # 1, Step # 3).

  As for the specific condition, for example, it can be set as the specific condition that the harvester 1 and the transport vehicle 40 run together to perform the harvesting operation. In this case, it can be assumed that the specific condition is not satisfied when the harvester 1 is performing a harvesting operation by single traveling. Further, the harvested harvested product is discharged by the discharge transport device 26 with various devices such as the cutting device, the front transport device 13, the rear transport device 15, the chopping device 19, the wind selection device 23, the discharge transport device 26, etc. operating. It can also be a specific condition. In this case, although the various devices other than the discharge transport device 26 such as the cutting device, the front transport device 13, the rear transport device 15, the chopping device 19, and the wind selection device 23 are in operation, the discharge transport device 26 is activated. It can be said that the specific condition is not satisfied in the stopped state. Thus, various conditions can be set for the specific condition.

  Here, when the specific condition is not satisfied, the operator can operate the discharge conveyance device 26 by operating the operation tool. In this case, since the harvested product is transported by the discharge transport device 26, the harvested product transported to the end portion 59 of the discharge transport device 26 can be detected by the second harvest amount detection device 70. Therefore, the control unit 100 continues the operation of the discharge conveyance device 26 until the second harvest amount detection device 70 detects the harvest, and when the second harvest amount detection device 70 detects the harvest, the discharge conveyance is performed. The device 26 is deactivated.

  In this way, when the specific condition is not satisfied, the harvest can be stored not only in the hopper 27 but also in the discharge conveyance device 26. Since the control unit 100 continues the operation of the discharge conveyance device 26 until the second harvest amount detection device 70 detects the harvested product, the harvested product is stored over the entire length to the end portion 59 of the discharge conveyance device 26. Therefore, the amount of harvested product stored in the discharge transport device 26 can be maximized. When the second harvest amount detection device 70 detects the harvested product, the control unit 100 stops the operation of the discharge transport device 26, so that the crop is dropped from the discharge unit 60 at the upper rear end of the discharge transport device 26. Can be prevented.

Based on FIG. 13, the allocation calculation process will be described.
In the harvester 1, as shown in FIG. 1, the harvested crop is transported by the front transport device 13 and the rear transport device 15. At this time, since the first harvesting amount detection device 31 is provided in the rear transporting device 15, when the crop is transported by the rear transporting device 15, as shown in FIG. Detecting crops at The crops that have been detected by the first harvest amount detection device 31 are selected by the wind selection device 23 to become a harvested product and fall into the hopper 27. Thereafter, when the harvested product is conveyed by the discharge conveying device 26, the second harvested amount detection device 70 detects the harvested product as shown in FIG. As described above, since the harvest (crop) is subjected to the detection action in the order of the first harvest amount detection device 31 and the second harvest amount detection device 70, the harvest amount based on the detection information of the first harvest amount detection device 31 is large. If so, the harvest amount based on the detection information of the second harvest amount detection device 70 also increases, and conversely, if the harvest amount based on the detection information of the first harvest amount detection device 31 is small, the second harvest amount detection device 70 There is a certain correlation between the harvest amount based on the detection information of the first harvest amount detection device 31 and the harvest amount based on the detection information of the second harvest amount detection device 70, such as the harvest amount based on the detection information becomes small. It is established. Therefore, the harvest amount calculation unit 101 uses the correlation to perform allocation calculation processing.

  FIG. 13 shows a case where, for example, as shown in FIG. 11, the harvester 1 travels from the first point V1 to the second point V2 and harvests by a single run. In this case, as shown in FIG. 13A, the harvest amount calculation unit 101 sets the harvest amount (crop transport amount) in time series based on the detection information of the first harvest amount detection device 31. Seeking. That is, at each of a plurality of detection timings (B1 to B5) in the first harvest amount detection device 31, the harvest amount calculation unit 101, based on the detection information of the first harvest amount detection device 31, captures the harvest amount ( (Crop transport amount).

  On the other hand, since the discharge conveyance device 26 is in the operation stop state, as shown in FIG. 13B, the second harvest amount detection device 70 cannot detect the harvest, and the harvest amount calculation unit 101 2 Even if the harvest amount of the harvest is obtained based on the detection information of the harvest amount detection device 70, the harvest amount remains zero. Thereafter, at the discharge timing (for example, B5), the control unit 100 operates the discharge / conveyance device 26 so as to discharge all the harvested items harvested in the harvesting operation by single traveling from the discharge / conveyance device 26. The harvest amount is detected by the second crop amount detection device 70, and the crop amount calculation unit 101 obtains the crop amount of the crop based on the detection information of the second crop amount detection device 70, and harvests by single traveling. It is possible to grasp the total amount C of the harvested products.

  Therefore, as shown in FIG. 13 (c), the harvest amount calculation unit 101 detects the total amount C of the harvested crops by the harvesting operation by single traveling, as the first harvest amount detection at each detection timing (B1 to B5). The harvest amount of the harvested product at each detection timing (B1 to B5) is obtained in a state of being assigned according to the magnitude of the harvest amount by the device 31.

  In other words, the harvest amount calculation unit 101 determines the harvest amount by the first harvest amount detection device 31 at each detection timing (B1 to B5) with respect to the total amount C of the crop harvested by the harvesting operation by single traveling. The yield of the harvested product at each detection timing (B1 to B5) is obtained depending on whether the ratio is high. For example, if the detection amount by the first harvest amount detection device at a certain detection timing is large, the detection amount by the second harvest amount detection device at the detection timing is also assigned as large. Conversely, if the detection amount by the first harvest amount detection device at a certain detection timing is small, the detection amount by the second harvest amount detection device at that detection timing is also assigned as small.

  In this way, the harvest amount calculation unit 101 detects the total amount detected by the second harvest amount detection device 70 at each detection timing (B1 to B5) as the first harvest amount detection at each detection timing (B1 to B5). It is configured to obtain the harvest amount of the harvested product at each detection timing (B1 to B5) in a state of being assigned according to the detection amount by the device 31.

  As described above, the harvest amount calculation unit 101 not only performs the normal calculation process when the specific condition is satisfied, but also performs the allocation calculation process even when the specific condition is not satisfied, thereby harvesting the harvested product. We grasp quantity in time series.

  As shown in FIG. 10, the harvester 1 includes a positioning antenna 39 (see FIG. 1) that receives positioning data transmitted from a positioning satellite, and the current position of the harvester 1 from the positioning data received by the positioning antenna 39. The position information acquisition part 102 which acquires the position information of the harvester 1 which shows is provided. Incidentally, the position information acquisition unit 102 acquires the current latitude / longitude information of the harvester 1 as the position information of the harvester 1 by independent positioning or relative positioning.

  Since the control unit 100 has acquired the position information of the harvester 1 by the position information acquisition unit 102, the control unit 100 can grasp each of a plurality of cutting positions from which the crop has been cut, and the harvested by the harvest amount calculation unit 101. We know the amount of crops in time series. Regarding the position information of the cutting position, the control unit 100 acquires the position information where the positioning antenna 39 is arranged in the harvesting machine 1 by the position information acquisition unit 102. In the front-rear direction of the harvester 1, the distance from the cutting position by the cutting apparatus to the position where the positioning antenna 39 is disposed is a specified value. Therefore, the control unit 100 can obtain the cutting position from the specified value and the position information of the positioning antenna 39 acquired by the position information acquisition unit 102. Accordingly, the control unit 100 associates the position information of the harvester 1 with the harvest amount of the harvest obtained by the harvest amount calculation unit 101, so that the harvester 1 is located at the specific position from the harvest amount of the harvest. It is possible to identify the harvest amount of the harvest when the crop is harvested in the position, and grasp how much harvest amount is obtained at which cutting position in the work area S (see FIG. 11) such as a farm field. Can do.

  In the harvesting machine 1, the harvested crop crop is detected by the first harvesting amount detection device 31 when it is conveyed by the rear conveyance device 15 via the front conveyance device 13, and further, the wind selection device 23. It is detected by the second yield detection device 70 through various devices such as the above. Therefore, there is a time delay from the timing at which the position information acquisition unit 102 acquires the cutting position to the timing at which the first crop detection device 31 or the second crop detection device 70 detects the harvest. Therefore, when associating the position information of the harvester 1 and the harvested amount of the harvested product, the control unit 100 associates the position information of the harvester 1 and the harvested amount of the harvested product in consideration of this time delay.

  The control unit 100 uses the first harvesting amount detection device 31 and the second harvesting amount detection device 70 from the timing at which the position information acquisition unit 102 acquires the cutting position using the transport speed of the harvested crop. The transport time of the harvested product (crop) until the timing of detecting (crop) can be obtained. The conveyance speed can be obtained based on, for example, a value obtained in advance by an experiment or the like, or based on the rotational speed of the drive source, the operating state of each part, the amount of crops, or the like. Therefore, the control unit 100 assumes that the determined transport time corresponds to a time delay, and the cutting position acquired by the position information acquisition unit 102 and the timing delayed by the transport time from the timing at which the cutting position is acquired. The harvest amount of the harvest based on the one harvest amount detection device 31 and the second harvest amount detection device 70 is associated.

  By performing such association, the control unit 100 determines the harvest amount of the crop that is harvested when the harvester 1 is located at a specific position from among the harvest amounts of the harvest obtained by the harvest amount calculation unit 101. Specifically, it is grasped how much harvest amount is obtained at which cutting position in the work area S such as a farm field. Therefore, the harvest amount image information generation unit 103 of the control unit 100 obtains the harvest amount image information of the work area indicating how much harvest amount has been harvested at which cutting position in the work area S as shown in FIG. The yield amount image information can be output to various devices such as a display device. Further, the control unit 100 displays information relating the harvesting position acquired by the position information acquisition unit 102 and the harvest amount of the harvested product, the harvest amount image information generated by the harvest amount image information generation unit 103, and the like. It is stored in the storage unit 104.

  By the way, in the harvest amount image information shown in FIG. 14, the image information divided into three stages of large, medium, and small is generated for the harvest amount, but the number of stages can be changed and set as appropriate. It is possible to appropriately change what kind of yield image the harvest amount image information generation unit 103 generates.

  As described above, the harvest amount calculation unit 101 can obtain the harvest amount of the harvest based on the detection information of the first harvest amount detection device 31 and the harvest based on the detection information of the second harvest amount detection device 70. The amount of harvest can be determined. A certain correlation is established between the harvest amount based on the detection information of the first harvest amount detection device 31 and the harvest amount based on the detection information of the second harvest amount detection device 70. Therefore, the control unit 100 has a fixed correlation such that, for example, the harvest amount based on the detection information of the second harvest amount detection device 70 is too large with respect to the harvest amount based on the detection information of the first harvest amount detection device 31. If it is broken, it is determined that an abnormality has occurred in the wind-selecting device 23 or the like, and at least the discharge conveyance device 26 is stopped. Thereby, it is possible to prevent a harvested product that is harvested in a state where an abnormality has occurred in the wind sorting device 23 and the like from being discharged to the outside as normal.

  When the constant correlation is broken, the control unit 100 not only includes the discharge conveyance device 26 but also a cutting device such as the crop divider 4, the side cutter 8, the top cutter 10, and the base cutter 12 as necessary. It is also possible to stop the operation of the front transport device 13, the rear transport device 15, the wind selection device 23, and the like.

  As described above, when the discharge conveyance device 26 and the like are stopped due to the abnormality detection, the control unit 100 notifies the display device, the notification device, and the like that the abnormality is detected, and also notifies the external management device and the like. The abnormality detection state can be communicated via the communication device.

[Another embodiment]
Another embodiment of the present invention will be described. Note that the configuration of each embodiment described below is not limited to being applied alone, but may be applied in combination with the configuration of another embodiment.

(1) In the above-described embodiment, an example in which the second yield detection device 70 includes the optical sensor 73 as the non-contact sensor has been described. However, for example, an ultrasonic distance sensor or color identification is provided. Various non-contact type sensors such as a sensor for detecting the above can be applied.

(2) In the above-described embodiment, the second harvest amount detection device 70 is disposed above the end portion 59 of the discharge conveyance device 26. A two harvest amount detection device 70 can also be arranged. In addition, the arrangement position of the second harvest amount detection device 70 is not limited to the terminal end portion 59 of the discharge conveyance device 26, and may be the main conveyance portion 58, for example.

(3) In the above embodiment, an example in which the first harvesting amount detection device 31 is provided in the rear conveyance device 15 has been shown. However, for example, the first harvesting amount detection device 31 can be provided in the front conveyance device 13, The arrangement position of the one harvest amount detection device 31 can be changed as appropriate.

1 Harvester 4 Crop divider (reaping device)
8 Side cutter (reaping device)
10 Top cutter (reaping device)
12 Base cutter (reaping device)
13 Front transfer device (transfer device)
15 Rear transfer device (transfer device)
17 Lower conveyor 18 Upper conveyor 23 Wind selector (sorter)
26 Discharge transport device 31 First harvest amount detection device 70 Second harvest amount detection device 73 Optical sensor (non-contact sensor)
101 Yield calculation unit

Claims (4)

A transport device that transports crops harvested by the mowing device, a sorting device that sorts crops from the crops transported by the transport device, and transports the crops sorted by the sorting device to the rear upper side. A discharge transport device that discharges to the outside and a harvest amount detection device that detects the harvest amount of the harvest,
As the harvest amount detection device, a first harvest amount detection device disposed on the upstream side in the transport direction, and a second harvest amount detection device disposed on the downstream side in the transport direction,
When the specific condition is satisfied, the harvest amount of the harvest is obtained based on the detection information of the second yield detection device, and when the specific condition is not satisfied, the first yield detection is performed. The harvesting machine provided with the harvest amount calculating part which calculates | requires the harvest amount of a crop based on the detection information of an apparatus and a said 2nd harvest amount detection apparatus.   The first harvest amount detection device is disposed at a position where the crop conveyed by the conveyance device is a detection target, and the second harvest amount detection device detects a crop conveyed by the discharge conveyance device. The harvester according to claim 1, wherein the harvester is disposed at a target position.   The transport device is provided with an upper conveyor and a lower conveyor capable of sandwiching and transporting the harvested crop, the upper conveyor is provided movably according to the transport amount of the crop, and the first yield detection device is By detecting the amount of movement of the upper conveyor, the harvest amount of the harvest is detected, and the second harvest amount detection device detects the contact with the crop conveyed by the discharge conveyance device in a non-contact manner. The harvester according to claim 2, further comprising a non-contact sensor.   When the period during which the specific condition is not satisfied extends over a plurality of detection timings in the first harvest amount detection device and the second harvest amount detection device, the harvest amount calculation unit is configured to output the second harvest amount at each detection timing. The total amount of the detection amount by the detection device is assigned according to the amount of detection by the first harvest amount detection device at each detection timing, and the harvest amount of the harvest at each detection timing is obtained. The harvester according to any one of claims 1 to 3.

Images