JP2018171025A - Harvesting machine - Google Patents

Abstract

Kind Code: A1 A harvester having two types of discharge mechanisms for discharging thresh is to operate each discharge mechanism properly. A harvester is provided with a first discharge port for discharging threshed grains when a threshing tank is in a raised posture, and a horizontal conveying portion connected to the upper end of a vertical conveying portion. The threshing discharge device having a second discharge port, and the threshing discharge device is moved between a storage posture in which the horizontal conveying unit is positioned above the threshing tank and a discharge posture in which the horizontal conveying unit protrudes laterally outside the machine body. a turning mechanism for turning around the vertical axis; a discharge mode selection unit for selecting a first discharge mode for discharging the threshed grains from the first discharge port and a second discharge mode for discharging the threshed grains from the second discharge port; and a threshing discharge control section for turning the threshing discharge device to the discharge posture in response to the threshing discharge preparation command when the first discharge mode is selected by the discharge mode selection section. [Selection drawing] Fig. 6

Description

  The present invention relates to a harvester equipped with a threshing device for threshing a harvested product harvested by a harvesting unit and a threshing tank for storing threshing obtained by the threshing device.

  Several types of discharge mechanisms are known that discharge threshing from threshing tanks. A harvester that employs one type of discharge mechanism is known from US Pat. The harvesting machine by this patent document 1 is provided with the cereal removal apparatus which has a vertical carrying-out part and a horizontal carrying-out part. The vertical carry-out part is provided in a state in which the traveling vehicle body is vertically oriented. Moreover, the lower end part of the vertical carrying-out part is connected to the threshing tank. The horizontal carry-out part is provided in a state extending from the upper end part of the vertical carry-out part. When discharging the cereal by the shed grain carrying-out device, the lateral carry-out portion is pivoted from the storage position located inside the traveling vehicle body to the carrying-out position protruding outside the traveling vehicle body. Then, the cereal is discharged from the threshing tank to the horizontal unloading section through the vertical unloading section and discharged from the discharge port. The threshing tank can swing up and down around the longitudinal axis of the machine body in order to collect the stored threshing grains on the lower end side of the vertical carry-out part.

  A harvesting machine employing another type of discharge mechanism is known from US Pat. The harvester includes a threshing tank having a threshing discharge port formed on a side wall, a swinging mechanism that swings the threshing tank around an axis in the front-rear direction of the machine, and a threshing in a downward storage posture of the threshing tank. And a shielding member that shields the material discharge port and opens the cereal discharge port when the threshing tank is in a raised discharge posture. When the threshing tank swings to the open posture, the threshing of the threshing tank is discharged from the cereal discharge port.

  Furthermore, a harvester equipped with the two types of discharge mechanisms described above is known from US Pat. In such a harvesting machine including two different types of discharge mechanisms, the discharge mechanism becomes complicated. Therefore, in each discharge operation, a member of one discharge mechanism may interfere with a member of the other discharge mechanism. is there.

JP 2013-192474 A Japanese Patent Laying-Open No. 2006-036260 JP, 2006-178870, A

  An object of the present invention is to appropriately operate each discharge mechanism in a harvesting machine including two types of discharge mechanisms for discharging cereals.

  The harvesting machine according to the present invention includes a threshing device for threshing a harvested product harvested by a harvesting unit, a threshing tank for storing threshing obtained by the threshing device, and the threshing tank among the threshing tanks. A first discharge part having a first discharge port provided on a lower side when the hopper is in the ascending position, and the threshing tank is moved up and down between the descending position and the rising position around the horizontal axis. A tank oscillating mechanism to be moved, a vertical conveyance unit coupled to the threshing tank, a horizontal conveyance unit coupled to an upper end of the vertical conveyance unit, and a tip of the horizontal conveyance unit, Between the cereal discharge device having the second discharge part having the discharge port, the storage posture in which the horizontal transport unit is located above the threshing tank, and the discharge posture in which the horizontal transport unit projects outside the machine body. Rotate the threshing discharge device around the vertical axis A swivel mechanism, a first discharge mode for discharging the cereal grains stored in the cereal cereal tank from the first outlet, and a second mode for discharging the cereal grains stored in the cereal tank from the second outlet. A discharge mode selection unit that selects a discharge mode; a user operation device that outputs a threshing discharge preparation instruction for preparing a cereal discharge from the threshing tank; and the discharge mode selection unit that performs the first operation. A cereal discharge control unit that turns the threshing discharge device to the discharge posture in response to the threshing discharge preparation command when the discharge mode is selected.

  In this harvester, a first discharge mode for discharging from the first discharge port and a second discharge mode for discharging from the second discharge port are prepared in order to discharge the cereal from the threshing tank. When a threshing discharge preparation command is issued to prepare for the threshing discharge, the discharge mode selected by the discharge mode selection unit is checked. When the first discharge mode is selected, the threshing discharge device turns to the discharge posture. In the first discharge mode, the threshing tank is swung to the ascending posture, and in the swinging process, the threshing tank interferes with the lateral conveyance unit of the shed cereal discharging device in the retracted posture. In the configuration of the present invention, as a preparatory state for threshing discharge, first, the threshing discharge device is swung to the discharge posture, so that interference between the cereal removal tank and the lateral conveyance unit is avoided.

  In one preferred embodiment of the harvesting machine, a closed posture in which the first discharge port is closed facing the first discharge port, and a first swinging device swings downward from the closed posture to A chute that opens and swings up and down between the use posture capable of guiding the threshing flow down and swings the chute to the use posture side in conjunction with the swing of the threshing tank toward the rising posture side. And a linkage mechanism that swings the chute to the closed posture side in conjunction with swinging the threshing tank to the lowered posture side. The linkage mechanism interlocks the swing of the chute with the swing of the threshing tank until the threshing tank reaches the discharge preparation posture between the lowered posture and the raised posture. It is configured not to let you. Further, the threshing discharge control unit responds to the threshing discharge preparation command when the first discharge mode is selected by the discharge mode selection unit, and causes the threshing discharge apparatus to discharge the cereal discharge apparatus. The threshing tank is raised to the discharge preparation posture.

  According to this configuration, in the swinging process from the descending posture of the threshing tank, the first discharge port is closed and the threshing is not discharged until a predetermined swinging posture (discharge preparation posture). However, the grain tank is swung to the discharge preparation posture following the turning to the discharge posture of the cereal discharge device according to the cereal discharge preparation command. As a result, if the draining operation (further upward swinging of the threshing tank) is performed after the preparation system for threshing discharge has been prepared, the threshing is immediately discharged from the threshing tank, so there is no unnecessary delay in the discharging operation. Does not occur.

  In one preferred embodiment of the harvester, the threshing discharge control unit responds to the threshing discharge preparation command when the second discharge mode is selected by the discharge mode selection unit. Then, the threshing discharge device is turned to the discharge posture. According to this configuration, in the second discharge mode, the turning of the threshing discharge device, which is essential as a preparation posture for threshing discharge, is performed in response to the threshing discharge preparation command. is there.

  In the cereal discharge in the second discharge mode, it is preferable to incline the cereal tank in order to collect the cereal stored in the threshing tank at a position suitable for discharge. Therefore, in one of the preferred embodiments, the threshing discharge control unit responds to the threshing discharge preparation command when the second discharge mode is selected by the discharge mode selection unit. Then, after turning the threshing discharge device to the discharge posture, the threshing tank is raised to a preset posture.

  Since the discharge of cereal from the first outlet is basically performed using gravity in the direction of the first outlet that acts on the cereal by the inclination of the threshing tank, the first discharge mode is selected. When not, it is preferable that the opening of the first discharge port is prohibited. For this reason, in one of the preferred embodiments, a lock mechanism having a lock position for prohibiting the opening of the first discharge port and an unlock position for permitting the opening of the first discharge port is provided, and The discharge mode selection unit selects the first discharge mode by detecting the unlock position of the lock mechanism, and selects the second discharge mode by detecting the lock position of the lock mechanism. In this configuration, the lock mechanism needs to be in the unlocked position when the cereal is discharged in the first discharge mode, and the lock mechanism needs to be in the locked position when the cereal is discharged in the second discharge mode. . If the lock mechanism is in the unlock position, the first discharge mode is selected. If the lock mechanism is in the locked position, the second discharge mode is selected. Thereby, the unlocking of the locking mechanism in the first discharging mode and the locking of the locking mechanism in the second discharging mode are ensured, and the locking mechanism is in the locked position state at the time of grain removal discharging in the first discharging mode, The inconvenience that threshing cannot be discharged is avoided.

  When preparations for threshing discharge in the second discharge mode are established by the threshing discharge preparation command, the power required for threshing discharge is transmitted to the threshing discharge device to Drainage from the exit begins. For such power transmission on / off operation, an operation tool such as a discharge switch is used. However, this power transmission is not necessary in the first discharge mode. For this reason, in a preferred embodiment, a discharge switch that outputs an on / off command for turning on / off power transmission to the threshing discharge device is provided, and the first discharge mode is selected by the discharge mode selection unit. When in a state of being in power, the power transmission command by the discharge switch is invalidated. Thereby, when the 1st discharge mode is selected, the trouble of transmitting the power required for discharge | emission of cereal removal to a cereal removal apparatus is avoided.

  In any discharge mode of the first discharge mode and the second discharge mode, when the discharge of the cereal is completed, the work of returning the threshing tank to the lowered position as the home position, and the cereal discharge apparatus It is necessary to perform the work of returning the horizontal conveyance unit to the storage position which is the home position in an appropriate order. Conveniently, such work is performed with a single command. For this reason, in one preferred embodiment, the user operation device has a function of outputting a discharge end command to end the threshing discharge process from the threshing tank, and the threshing discharge control unit includes: Regardless of the discharge mode selected by the discharge mode selection unit, in response to the discharge end command, after the threshing tank is swung from the raised position to the lowered position, It is swung from the discharge posture to the retracted posture.

It is a right view which shows the whole harvesting machine. It is a top view which shows the whole harvesting machine. It is a rear view which shows the threshing tank of a raise discharge attitude | position. It is a top view of the remote controller which is an example of a user operation device. It is a functional block diagram which shows the function regarding the control which discharges | emits threshing. It is a flowchart which shows the flow of the first half of threshing discharge control. It is a flowchart which shows the flow of the second half of threshing discharge control.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a right side view showing the whole harvesting machine. FIG. 2 is a plan view showing the whole harvesting machine. The direction [F] shown in FIGS. 1 and 2 is defined as the forward direction of the traveling vehicle body 1, and the direction [B] is defined as the backward direction of the traveling vehicle body 1. 1, the direction of [R] shown in FIG. 2 is the right direction of the traveling vehicle body 1, the direction of the back side of the drawing of FIG. 1, and the direction of [L] shown in FIG. Define. The direction [U] shown in FIG. 1 is defined as the upward direction of the traveling vehicle body 1, and the direction [D] is defined as the downward direction of the traveling vehicle body 1.

  The harvesting machine is for harvesting crops such as rice, wheat and soybeans. The harvester includes a traveling vehicle body 1 equipped with a pair of left and right front wheels 2 and a pair of left and right rear wheels 3 as a traveling device. The front wheels 2 are equipped so as to be driven by power from the engine 4. The rear wheel 3 is equipped with a steering operation by a power steering device (not shown). A riding-type driving unit 7 is formed at the front of the traveling vehicle body 1. The operation unit 7 is covered with a cabin. A harvesting unit 10 is provided at the front of the traveling vehicle body 1. The harvesting unit 10 is lifted and lowered over a descending work state that is lowered near the ground and an ascending non-working state that is elevated to a higher position from the ground. A threshing device 12 (see FIG. 2) and a threshing tank 13 are provided from just behind the driving unit 7 to the rear of the traveling vehicle body 1.

  The harvesting operation is performed by lowering the harvesting unit 10 to the lowering operation state and causing the traveling vehicle body 1 to travel in this state. That is, in the harvesting unit 10, the planted grain culm stock located in front of the traveling vehicle body 1 is cut, and the harvested corn straw as a harvested product is harvested. The harvested cereal meal is conveyed backward by the conveying device 11 and supplied to the threshing device 12. In the threshing apparatus 12, the harvested cereal meal is threshed to obtain threshing. The threshing is conveyed and stored in the threshing tank 13 by the cerealing device 12a (see FIG. 2).

  As shown in FIG. 2, the threshing device 12 is provided in a state of being biased to the left side of the traveling vehicle body with respect to the center in the lateral width direction of the traveling vehicle body 1 in a plan view. The threshing tank 13 is provided above the threshing device 12 and extends from the left end to the right end of the traveling vehicle body 1. As shown in FIG. 3, the threshing tank 13 swings up and down between a descending posture and an ascending posture around a horizontal axis X along the front-rear direction by the driving of a cylinder driving type tank swinging mechanism TM. To do. The threshing tank 13 swings up and down toward the left side of the traveling vehicle body. In the present embodiment, when the threshing tank 13 is in the lowered posture, the center of gravity of the vehicle body is located closest to the center of the vehicle body, and the traveling vehicle body 1 is in the most stable state.

  As shown in FIG. 3, a first discharge portion 18 is provided on the side wall of the threshing tank 13. This 1st discharge part 18 is arrange | positioned facing the 1st discharge port 18a which is the opening provided in the side wall of the threshing tank 13, and this 1st discharge port 18a, and the chute which opens and closes the 1st discharge port 18a 14. The chute 14 is supported by the threshing tank 13 so as to be able to swing up and down between a closed posture for closing the first discharge port 18a and a use posture for opening the first discharge port 18a. It also functions as a guide plate that guides shed grains discharged from the outlet 18a. In addition, the 1st discharge port 18a is provided in the side wall part of the threshing tank 13 used as the low side when the threshing tank 13 becomes a raise attitude | position.

  The chute 14 swings due to the weight of the threshing stored in the threshing tank 13 and the gravity balance of the chute 14 itself, but the swinging is regulated by the linkage mechanism 20. The linkage mechanism 20 links the vertical movement of the threshing tank 13 and the swing of the chute 14. The linkage mechanism 20 includes a rotation type bending link 21 and an outer / inner operation cable 22. The distal end side of the bending / extending link 21 is connected to the chute 14, and the rotation fulcrum side of the bending / extending link 21 is connected to the inner end of one end of the operation cable 22. The outer end of one end of the operation cable 22 is connected to the cereal removal tank 13. The outer end of the other end of the operation cable 22 is connected to the traveling vehicle body 1, and the inner end of the other end of the operation cable 22 is connected to the lock mechanism 23.

  With the above structure, the linkage mechanism 20 swings the chute 14 to the use posture side in conjunction with the swinging of the cerealing tank 13 to the rising posture side and swings the threshing tank 13 to the descending posture side. The bending / extension link 21 rotates in conjunction with the movement, thereby swinging the chute 14 to the closed posture side. Further, the linkage mechanism 20 does not interlock the swinging of the chute 14 with the swinging of the threshing tank 13 until the threshing tank 13 is changed from the lowered position to the discharge ready position between the lowered position and the raised position. It is configured as follows.

  The lock mechanism 23 includes a lock lever (not shown) that can be switched between a lock position and an unlock position, although only schematically shown. At the lock position of the lock lever, the bending / extending link 21 is prevented from rotating, and the chute 14 cannot be swung to the use posture side. At the unlocked position of the lock lever, the bending link 21 is allowed to rotate, and the chute 14 can be swung to the use posture side. That is, the lock mechanism 23 is configured to have a lock position that prohibits the opening of the first discharge port 18a and an unlock position that permits the opening of the first discharge port 18a.

  As shown in FIG. 3, when the threshing tank 13 swings to a predetermined swing angle (specific position) by driving the tank swing mechanism TM, the chute 14 rotates downward. Thereby, the 1st discharge port 18a blocked with the chute | shoot 14 is open | released, and the threshing stored in the threshing tank 13 is guided and discharged | emitted by the chute | shoot 14 rotated below. The discharge mode in which the cereal is discharged from the first discharge port 18a in this way is referred to as a first discharge mode. The cereal discharge port used in the first discharge mode is the first discharge port 18a.

  As shown in FIGS. 1 and 2, a discharge screw 13 a extending along the horizontal axis X is arranged at the bottom of the threshing tank 13. A cereal discharge device 30 is disposed that receives the cereal discharged from the cereal removal tank 13 by the discharge screw 13a and discharges the cereal to a loading platform such as a transport vehicle located around the traveling vehicle body 1. The cereal removal apparatus 30 includes a vertical conveyance unit 31 and a horizontal conveyance unit 32 which are screw conveyors. One end of the vertical conveyance unit 31 is connected to the cereal discharge portion of the discharge screw 13a, and extends upward along the vertical axis Y (see FIG. 2) near the side wall of the cereal removal tank 13. The horizontal conveyance unit 32 is connected to the other end of the vertical conveyance unit 31 and extends along the top wall of the threshing tank 13 in the lowered posture. A second discharge port 33 a is provided in the second discharge portion 33 provided at the front end portion of the lateral conveyance portion 32.

  The vertical conveyance unit 31 can turn around the vertical axis Y together with the horizontal conveyance unit 32. A cylinder-driven swivel mechanism SM is interlocked and connected to the vertical conveyance unit 31. The vertical conveyance unit 31 is turned by driving the turning mechanism SM. That is, the threshing discharge device 30 includes a storage posture (shown by a solid line in FIG. 2) in which the lateral conveyance unit 32 is located above the cerealing tank 13, and the lateral conveyance unit 32 projects outward from the traveling vehicle body 1. The attitude is changed between the discharged attitude (indicated by the dotted line in FIG. 2). By driving the discharge screw 13a, the vertical conveyance unit 31, and the horizontal conveyance unit 32 in the discharge posture, the cereals are discharged from the second discharge port 33a. The discharge mode in which the cereal is discharged from the second discharge port 33a in this way is referred to as a second discharge mode. The cereal discharge port used in the second discharge mode is the second discharge port 33a.

  When the lock mechanism 23 is in the unlock position, the shed grains are discharged in the first discharge mode. Further, when the lock mechanism 23 is in the locked position, the shed grains are discharged in the second discharge mode.

  A radiator 15A is provided at the rear part of the traveling vehicle body 1, and a radiator fan 15B for supplying cooling air to the radiator 15A is provided outside the radiator 15A. Since the outside of the traveling vehicle body 1 is covered with the panel structure 16, an air circulation hole 17 through which the radiator fan 15 </ b> B sucks outside air is provided in the panel structure 16. As shown in FIG. 1, the air circulation hole 17 is located slightly obliquely forward and downward from the position of the second discharge port 33a in the retracted posture.

  As schematically shown in FIG. 5, a swing angle detection unit SU <b> 1 for detecting the vertical swing angle of the threshing tank 13 is provided. In this embodiment, the swing angle detection unit SU1 is used as a position detection unit that detects the position of the threshing tank 13, and includes a swing angle sensor. Furthermore, a turning angle detection unit SU2 for detecting the horizontal turning angle of the cereal removal apparatus 30 is provided. In this embodiment, the turning angle detection unit SU2 is used as a position detection unit that detects the position of the threshing and discharging apparatus 30 and includes a turning angle sensor.

  Although not shown in particular, the remote controller 8 is arranged in the driving unit 7 at a position where the driver (operator) can easily reach. When the remote controller 8 is used, the remote controller 8 is taken out by the operator and can be used with one hand.

  The remote controller 8 has a rectangular parallelepiped shape that can be placed on the palm and grasped, and the surface thereof is formed as a rectangular operation surface 80. A manual button that is in the form of a cross key 81 is arranged at the approximate center of the operation surface 80. The vertical first piece 82 of the cross key 81 functions as a swing operation unit UD that commands the vertical swing operation of the tank swing mechanism TM. The second piece 83 in the lateral direction of the cross key 81 functions as a turning operation unit LR that commands the turning operation of the turning mechanism SM. The cross key 81 is used as a third operating tool for giving a manual operation command for manually changing the posture of the threshing tank 13 by the tank swinging mechanism TM and changing the posture of the threshing discharge device 30 by the turning mechanism SM.

  The upper end portion 82U of the first piece 82 corresponds to a first swing command contact that commands an upward swing operation of the tank swing mechanism TM. By pushing the upper end portion 82U of the first piece 82, an upward swing operation is commanded. The lower end portion 82D of the first piece 82 corresponds to a second swing command contact that commands a downward swing operation of the tank swing mechanism TM. A downward swing motion is commanded by pressing the lower end portion 82D of the first piece 82.

  The left end portion 83L of the second piece 83 corresponds to a first turning command contact that commands a left turning operation of the turning mechanism SM. A left turn operation is commanded by pushing the left end 83L of the second piece 83. The right end portion 83R of the second piece 83 corresponds to a second turning command contact that commands the right turning operation of the turning mechanism SM. A right turn operation is commanded by pressing the right end portion 83R of the second piece 83. Here, “right turn” indicates that the threshing and discharging apparatus 30 (lateral transport unit 32) rotates clockwise (clockwise) about the vertical axis Y in the plan view. Indicates that the cereal removal apparatus 30 (lateral conveyance unit 32) rotates counterclockwise around the vertical axis Y (counterclockwise).

  An automatic button 84 and a discharge button 85 that functions as a discharge switch are disposed in the upper area of the operation surface 80. The automatic button 84 is assigned a function for giving a cereal discharge preparation command and a function for giving a discharge end command. The threshing discharge preparation command is a command for preparing a preparation for threshing discharge from the threshing tank 13. The discharge end command is a command to return the threshing tank 13 and the threshing discharge device 30 to the lowered position and the stored position, which are the home positions (stable positions), after the cereal discharge from the threshing tank 13 is completed. . The discharge button 85 functions as a discharge switch that outputs an on / off command for turning on / off power transmission to the cereal removal apparatus 30.

  The discharge button 85 gives a cereal discharge command for discharging the cereal by the cereal discharge device 30. That is, the discharge button 85 functions as a discharge switch that outputs an on / off command for turning on / off the power transmission to the cereal discharge apparatus 30. In addition, when the 1st discharge mode which discharges | emits the threshing stored in the threshing tank 13 from the 1st discharge port 18a is selected, power transmission to the cereal removal apparatus 30 by the discharge button 85 is turned on. The power transmission command to be performed is invalidated.

  In addition, you may incorporate the switch, button, etc. which are equivalent to the remote controller 8 mentioned above in the operation panel provided in a driving | running part.

  FIG. 5 is a functional block diagram showing functions related to control for discharging the cereal stored in the threshing tank 13 in either the first discharge mode or the second discharge mode in the control unit 9 of the harvester. . In the first discharge mode, the threshing stored in the threshing tank 13 is discharged from the first discharge port 18a. In the second discharge mode, the cereals stored in the threshing tank 13 are discharged from the second outlet 33a.

  The control unit 9 includes an input signal processing unit 91, a device control unit 92, a tank position calculation unit 93, a discharge device position calculation unit 94, a cereal removal control unit 95, and a discharge mode selection unit 96. A control signal generated by the control unit 9, for example, a drive signal to the tank swinging mechanism TM or the turning mechanism SM, power transmission to the cereal discharge mechanism for carrying out the cereal removal is applied to the cereal discharge clutch CL. A drive signal or the like is sent via the device control unit 92. The input signal processing unit 91 includes signals from various operation devices including operation signals (operation commands) from the operation panel and the remote controller 8, detection signals from the swing angle detection unit SU1 and the turning angle detection unit SU2, and a lock mechanism. Receiving a detection signal from the lock detection switch 28 for detecting the lock position or unlock position 23, and a signal from a work state detection sensor group including sensors and switches for detecting the state of other devices constituting the harvester. Then, the data is transferred to each functional unit of the control unit 9.

  Based on the detection signal from the swing angle detection unit SU1, the tank position calculation unit 93 calculates the swing position of the threshing tank 13 or the swing posture such as the lowered posture and the lifted posture, and outputs it as tank position data. . Based on the detection signal from the turning angle detection unit SU2, the discharging device position calculating unit 94 calculates the turning position of the threshing discharge device 30, or the turning posture such as the storage posture and the discharging posture, and as the cereal discharging device position data. Output.

  The discharge mode selection unit 96 selects and sets either the first discharge mode or the second discharge mode. In this embodiment, the discharge mode selection unit 96 selects the first discharge mode based on the detection signal of the lock detection switch 28 if the lock mechanism 23 is in the unlock position, and if the lock mechanism 23 is in the lock position. The second discharge mode is selected.

  The threshing discharge control unit 95 outputs control data related to the cereal discharge operation including the posture change of the threshing tank 13 and the threshing discharge device 30 according to the operation of the operator with respect to the user operation device such as the remote controller 8. To do. When the threshing tank 13 is in the descending posture and the threshing discharge device 30 is in the home posture in the retracted posture, when the automatic button 84 is pressed, a threshing discharge preparation command is given to the threshing discharge control unit 95. It is done. When the threshing discharge ends and the threshing discharge device 30 is not in the retracted position, when the automatic button 84 is pressed, a discharge end command for ending the cereal discharge process for discharging the cereal from the threshing tank 13 is issued. This is given to the control unit 95.

  The threshing discharge control unit 95 turns the threshing discharge device 30 to a discharge posture (for example, 90 ° turn) when a shedlet discharge preparation command is given in a state where the first discharge mode is selected. . As a result, the threshing tank 13 can be lifted and swung without interfering with the threshing discharge device 30, and the cereal removal can be discharged from the first discharge port 18a. Similarly, when the second discharge mode is selected, even if a threshing discharge preparation command is given, the threshing discharge device 30 is turned to the discharge posture (for example, 90 ° turn). Thereby, the threshing tank 13 can be lifted and swung without interfering with the threshing discharge device 30, and the cereal can be moved toward the discharge screw 13a.

  In the threshing discharge process in the first discharge mode, when the upper end portion 82U of the cross key 81 is pressed in a state where preparation for threshing discharge is ready, an upward swing operation is commanded, and the threshing tank 13 is moved. It swings in the upward posture (for example, swings 40 degrees). Thereby, the chute 14 changes its posture to the use posture, the first discharge port 18a is opened, and the shed 14 is slid from the first discharge port 18a to be discharged. By pressing the upper end portion 82U or the lower end portion 82D of the cross key 81, the inclination of the threshing tank 13 can be adjusted, and the cereal discharge amount from the first discharge port 18a can be adjusted.

  The cereal discharge process in the second discharge mode is started when the discharge button (discharge switch) 85 is pressed in a state where preparation for threshing discharge is ready. By pressing the discharge button 85, a power transmission command for entering and operating the threshing discharge clutch CL is given to the threshing discharge control unit 95. In response to this, the threshing discharge control unit 95 enters and operates the threshing discharge clutch CL. As a result, the discharge screw 13a is driven, and the cereal is discharged from the second discharge port 33a of the threshing discharge device 30. At that time, since the turning mechanism SM is driven by the pressing operation of the second piece 83 in the horizontal direction of the cross key 81, the second discharge port 33a can be adjusted.

  Even if the discharge button (discharge switch) 85 is pressed in the state where the first discharge mode is selected and ready for the threshing discharge, this operation becomes invalid and the threshing discharge clutch CL is engaged. The power transmission command to be operated is not given to the threshing discharge control unit 95.

  If the automatic button 84 is pressed at the stage where such a threshing and discharging process is completed, a discharging end command is given to the threshing and discharging control unit 95. Regardless of the discharge mode selected by the discharge mode selection unit 96, the threshing discharge control unit 95 responds to the discharge end command and swings the threshing tank 13 from the rising posture to the lowering posture. The threshing discharge device 30 is turned from the discharge posture to the retracted posture.

  Next, the flow of cereal removal control in the first discharge mode and the second discharge mode will be described with reference to FIGS. 6 and 7. The initial condition of the threshing discharge control is that the threshing tank 13 is in the lowered posture and the threshing discharge device 30 is substantially in the retracted posture.

  As shown in FIG. 6, first, in this threshing discharge control, the input operation to the remote controller 8 which is a user operation device is checked, and whether or not the automatic button 84 has been operated, that is, a threshing discharge preparation command is output. It is checked whether it has been done (# 01). When the automatic button 84 is operated (# 01 Yes branch), it is checked which of the first discharge mode and the second discharge mode is selected (# 02).

  If the first discharge mode is selected in step # 02, the cereal discharge is performed from the first discharge port 18a. Before that, the cereal discharge preparation process is performed automatically. In the cereal discharge preparation process in the first discharge mode, the threshing discharge device 30 is turned from the retracted position to the discharged position (# 11, # 12, # 13).

  The preliminary ascending swing of step # 14 is one of the other embodiments, and after the turning of the threshing discharge device 30 to the discharge posture, the swing angle is such that the shed cereal is not discharged from the first discharge port 18a. The purpose is to incline the threshing tank 13. By including this preliminary ascent swing in the threshing discharge preparation process, when the threshing tank 13 is lifted and swung in the next cereal discharging process, the cereal is immediately discharged from the first discharge port 18a. Discharged.

  If the second discharge mode is selected in step # 02, the cereal discharge from the second discharge port 33a is performed. Before that, a threshing preparation process takes place. In the threshing discharge preparation process in the second discharge mode, the threshing discharge device 30 is swung from the retracted position to the discharging position (# 21, # 22, # 23).

  Preliminary ascent swinging in step # 24 is one of the other embodiments, and the threshing tank 13 is stored in the threshing tank 13 by tilting the threshing tank 13 slightly after turning to the discharging posture of the threshing discharging apparatus 30. The threshing that has been made is easy to flow toward the discharge screw 13a. In threshing discharge in the second discharge mode, if the threshing amount of the threshing tank 13 decreases, the threshing tank 13 needs to be tilted. It is also advantageous to slightly tilt 13.

  When the cereal removal preparation process shown in FIG. 6 ends, the process proceeds to the following process shown in FIG.

  When the cereal discharge preparation process is completed in the first discharge mode, the cereal discharge process for discharging the cereal from the first discharge port 18a is manually performed. Is checked (# 30). Similarly, when the cereal discharge preparation process is completed in the second discharge mode, the cereal discharge process for discharging the cereal from the second discharge port 33a is manually performed. Before this, the cereal discharge process is ended. It is checked whether an end command to be output has been output (# 40). The completion command for the cereal discharge process is output by operating the automatic button 84 after the completion of the cereal discharge preparation process.

  If the end command is not output in the first discharge mode (# 30 No branch), the process proceeds to the grain removal discharge process. It is checked whether or not a swing command is input to the threshing tank 13 by pressing the upper end 82U or the lower end 82D of the cross key 81 (# 31). If there is no swing command (# 31 No branch), the process returns to step # 30. If the swing command is input (# 31 Yes branch), it is checked whether the swing is ascending or descending. In the case of ascending rocking, an ascending control signal is sent to the tank rocking mechanism TM, and if the threshing tank 13 is rocking up and down, and if it is a descending rocking command, a descending control signal is sent to the tank rocking mechanism TM. The threshing tank 13 swings downward (# 32). Thereafter, the process returns to step # 30. In the operation process of Step # 31 and Step # 32, if the threshing tank 13 has a predetermined inclination angle or more, the threshing from the first discharge port 18a is discharged.

  If the end command is not output in the second discharge mode (# 40 No branch), the process proceeds to the cereal removal process. First, it is checked whether or not a discharge command as an on / off command for turning on / off the transmission of power to the cereal discharge device 30 is output by pressing the discharge button 85 (# 41). When the discharge command is output (# 41 Yes branch), the threshing discharge clutch CL is engaged and operated, the discharge screw 13a is driven, the cerealing exits the cerealing tank 13, and the outlet of the cereal discharging device 30 The cereal is discharged from the second outlet 33a (# 42). Next, it is checked whether a swing command for the threshing tank 13 is entered (# 43). If the swing command is input (# 43 Yes branch), it is checked whether the swing is ascending or descending. In the case of ascending rocking, an ascending control signal is sent to the tank rocking mechanism TM, and if the threshing tank 13 is rocking up and down, and if it is a descending rocking command, a descending control signal is sent to the tank rocking mechanism TM. The threshing tank 13 swings downward (# 44).

  Further, it is checked whether or not a turning command for the cereal removal apparatus 30 is entered (# 45). The swing command is output by pressing the left end 83L or the right end 83R of the cross key 81. If a turn command is entered (# 45 Yes branch), it is checked whether the turn is left or right. In the case of left turn, a left turn control signal is sent to the turn mechanism SM, and the threshing discharge device 30 turns left, and if it is right turn, a right turn control signal is sent to the turn mechanism SM and shed grain discharge. The device 30 turns right (# 46).

  Next, it is checked whether a discharge stop command is output (# 47). The discharge stop command is output by pressing the discharge button 85 again during the cereal discharge. When the discharge stop command is output (# 47 Yes branch), the threshing discharge clutch CL is turned off, the discharging screw 13a is stopped, and the discharging of the cerealing from the second discharge port 33a is stopped (# 48). Return to step # 40.

  If the discharge command is not output at step # 41 (# 41 No branch), the process jumps to step # 43. If there is no swing command in step # 43 (# 43 No branch), the process jumps to step # 45. If there is no turn command in step # 45 (# 45 No branch), the process jumps to step # 47. If the discharge stop command is not output in step # 47 (# 47 No branch), the process jumps to step # 40.

  If an end command is output at step # 30 and step # 40 (# 30 Yes branch, # 40 Yes branch), the threshing discharge end process is executed. This threshing discharge end process is automatically performed, and the threshing tank 13 is returned to the lowered position as the home position, and the threshing discharge device 30 is returned to the retracted position as the home position. Since the threshing discharge termination process is not performed during threshing discharge, it is first checked whether threshing is being discharged (# 60), and if it is being discharged (# 60 Yes branch), Stopped (# 61). Next, a descent control signal is sent to the tank swing mechanism TM until the threshing tank 13 is in the lowered position (# 62). If the threshing tank 13 is in the lowered position (# 63 Yes branch), the tank swing mechanism TM stops (# 64). If the threshing tank 13 is in the lowered posture, next, a turning control signal is sent to the turning mechanism SM until the threshing discharge device 30 is in the retracted posture (# 65). When the threshing discharge device 30 is in the retracted posture (# 66 Yes branch), the turning mechanism SM stops (# 67). This ends the cereal discharge termination process.

[Another embodiment]
Hereinafter, another embodiment of the above-described embodiment will be described. It should be noted that the above-described embodiment and these other embodiments can be variously combined and replaced as long as they do not contradict each other.

(1) In the above-described embodiment, the discharge mode selection unit 96 selects the first discharge mode based on the detection signal of the lock detection switch 28, and the lock mechanism 23 is locked when the lock mechanism 23 is in the unlock position. If so, the second discharge mode is selected. The discharge mode selection by the discharge mode selection unit 96 can be variously modified. For example, a discharge mode selection switch for selecting the first discharge mode and the second discharge mode may be provided, and the position of the lock mechanism 23 may be switched according to the state of the discharge mode selection switch.

(2) The functional block diagram of the control unit 9 shown in FIG. 5 is for ease of explanation, and each functional unit shown in FIG. 5 may be further divided or arbitrarily It may be integrated. Also, the control unit 9 may be divided into a plurality of functions, and the function unit related to the present invention may be distributed to each control unit 9.

(3) In the above-described embodiment, the remote controller 8 is a dedicated product, but instead, by installing an appropriate application on the smartphone or tablet computer, the smartphone or tablet computer can be connected to the remote controller of the present invention. It may be used as the operation device 8.

(4) In the above-described embodiment, the tank swinging mechanism TM and the turning mechanism SM employ the cylinder driving method, but the cylinder may be a hydraulic cylinder or an electric cylinder. Alternatively, an electric motor or a hydraulic motor may be used as a drive source.

(5) The layout of each device described in the above-described embodiment is merely an example, and for example, the layout of the engine 4, the radiator 15A, the radiator fan 15B, the threshing device 12, the threshing tank 13, and the like can be changed as appropriate. . Further, the threshing tank 13 is not limited to swinging upward toward the right side of the vehicle body as in the above-described embodiment, and, for example, so as to swing upward toward the rear side of the vehicle body or the left side of the vehicle body. It may be configured.

  The present invention is not limited to harvesting machines for harvesting rice, wheat, soybeans, and the like, but harvests corn tufts and threshing the corn tufts in a threshing device to obtain corn seed grains It can be used for various harvesting machines. Further, the present invention can also be used for a crawler type traveling device or a harvester equipped with a traveling device that combines a wheel and a mini crawler.

1: Traveling vehicle body 8: Remote controller 9: Control unit 12: Threshing device 13: Threshing tank 13a: Discharge screw 14: Chute 18: First discharge part 18a: First discharge port 20: Linkage mechanism 21: Bending and extending link 22 : Operation cable 23: Lock mechanism 28: Lock detection switch 30: Degraining discharge device 31: Vertical transfer unit 32: Horizontal transfer unit 33: Second discharge unit 33a: Second discharge port 81: Cross key (manual button)
84: Automatic button 85: Eject button (eject switch)
91: Input signal processing unit 92: Device control unit 93: Tank position calculation unit 94: Discharge device position calculation unit 95: Degraining discharge control unit 96: Discharge mode selection unit SM: Turning mechanism SU1: Swing angle detection unit SU2: Swivel angle detection unit TM: Tank swing mechanism X: Horizontal axis Y: Vertical axis

Claims (7)

A threshing device for threshing the harvested product harvested by the harvesting unit;
A threshing tank for storing threshing obtained by the threshing device;
A first discharge portion having a first discharge port provided in a portion on the lower side when the threshing tank is in an ascending posture in the threshing tank;
A tank swinging mechanism for swinging the threshing tank up and down between a lowered posture and a raised posture around a horizontal axis;
A vertical transport unit coupled to the threshing tank, a horizontal transport unit coupled to the upper end of the vertical transport unit, and a second discharge unit coupled to the tip of the horizontal transport unit and having a second discharge port A threshing discharge device having
A turning mechanism for turning the threshing discharge device around a vertical axis between a retracted posture in which the horizontal conveying unit is located above the threshing tank and a discharging posture in which the horizontal conveying unit projects to the outside of the machine body. When,
A first discharge mode for discharging the cereals stored in the threshing tank from the first outlet; and a second discharge mode for discharging the cereals stored in the cereal tank from the second outlet. A discharge mode selection section to select;
A user operation device that outputs a threshing discharge preparation instruction for preparing a cereal discharge preparation from the threshing tank;
In response to the threshing discharge preparation command when the first discharging mode is selected by the discharging mode selection unit, the threshing discharge control unit that turns the threshing discharge device to the discharge posture;
Harvester with A closed posture that closes the first discharge port facing the first discharge port, and a use posture that swings downward from the closed posture to open the first discharge port and guide downflow of cereals. A chute that can swing up and down between,
The chute is swung to the use posture side in conjunction with the swinging of the threshing tank to the ascending posture side, and the chute is interlocked to swinging of the threshing tank to the descending posture side. A linkage mechanism that swings to the closed posture side,
The linkage mechanism interlocks the swing of the chute with the swing of the threshing tank until the threshing tank reaches the discharge preparation posture between the lowered posture and the raised posture. Configured to not let
The threshing discharge control unit turns the threshing discharge device to the discharge posture in response to the threshing discharge preparation command when the first discharge mode is selected by the discharge mode selection unit. The harvesting machine according to claim 1, wherein the threshing tank is raised to the discharge preparation posture after the threshing tank is raised.   The threshing discharge control unit turns the threshing discharge device to the discharge posture in response to the threshing discharge preparation command when the second discharge mode is selected by the discharge mode selection unit. The harvester according to claim 1 or 2.   The threshing discharge control unit turns the threshing discharge device to the discharge posture in response to the threshing discharge preparation command when the second discharge mode is selected by the discharge mode selection unit. The harvesting machine according to claim 3, wherein after raising, the threshing tank is raised to a preset posture. A lock mechanism having a lock position for prohibiting the opening of the first discharge port and an unlock position for permitting the opening of the first discharge port;
The discharge mode selection unit selects the first discharge mode by detecting the unlock position of the lock mechanism, and selects the second discharge mode by detecting the lock position of the lock mechanism. The harvesting machine according to any one of claims 1 to 4. A discharge switch for outputting an on / off command to turn on / off power transmission to the cereal discharge device;
The harvester according to any one of claims 1 to 5, wherein when the first discharge mode is selected by the discharge mode selection unit, a power transmission command by the discharge switch is invalidated. The user operation device has a function of outputting a discharge end command to end a threshing discharge process from the threshing tank,
In response to the discharge end command, the threshing discharge control unit swings the threshing tank from the raised position to the lowered position regardless of the discharge mode selected by the discharge mode selection unit. The harvester according to any one of claims 1 to 6, wherein the threshing discharge device is turned from the discharge posture to the retracted posture later.

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