JP2016041049A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve fuel economy while keeping necessary engine output in a combine harvester operatively driving a travelling unit and a threshing unit with a rotation power from an engine.SOLUTION: A controller can selectively start, according to crop species selected with a processed crop selection member, an engine rated operation mode where the engine is operated so that the engine output becomes the rated rotation speed and an engine low speed operation mode where the engine is operated so that the engine output becomes lower than the rated rotation speed. A change adjusting actuator is operated so that when starting the engine rated operation mode, a change adjusting device is put in a standard transmission state, and when starting the engine low speed operation mode, a change adjusting device is put in a high speed transmission state higher than the standard transmission state.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a combine.

  Crop condition selected by crop condition selection means in a normal combine having a cutting reel including a take-up reel and a platform auger and configured to change the rotation speed of the take-up reel according to the vehicle speed by a control device Accordingly, it has been proposed to change the control content of the rotation speed control of the take-up reel by the control device (see Patent Document 1 below).

  Specifically, in the combine described in Patent Document 1, a continuously variable transmission mechanism that is controlled by the control device is inserted in a drive path for driving the drive from the engine to the drive reel.

  The control device stores control data related to the drive rotation speed of the scraping reel with respect to the vehicle speed for each crop condition, and the control device corresponds to the crop condition selected by the crop condition selection means. The drive rotation speed of the scraping reel is controlled using the control data.

  Here, in order to properly scrape the crop planted in the field by the scraping reel, it is desirable to maintain the peripheral speed of the scraping reel with respect to the field within an appropriate range regardless of the traveling vehicle speed. Furthermore, when soybean is scraped, the rotation speed of the scraping reel is set to be lower than that when paddy rice or wheat is scraped to prevent or reduce threshing by the scraping reel. Is desirable.

  In this regard, the combine described in Patent Document 1 is configured to control the driving rotational speed of the harvesting reel with vehicle speed synchronization using the rotational speed control data of the scraping reel corresponding to the type of harvested crop. Therefore, it is said that good scraping work can be realized for various harvested crops.

  However, in the said patent document 1, the fuel consumption of the said engine is not considered.

  That is, the load on the engine varies depending on the type of treated crop, but the output torque of the engine is set based on the crop with the largest load on the engine during cutting and threshing among various treated crops. Is done.

For example, when rice, wheat and soybeans are assumed as the treated crops, the load on the engine during harvesting and threshing is the rice, so the output torque of the engine is based on the rice. Is set.
Therefore, during harvesting and threshing of wheat and soybeans that have an engine load lower than that of rice, the engine is in an unnecessary high torque output state, resulting in a deterioration in fuel consumption.

JP 07-008079 A

  The present invention has been made in view of such prior art, and is a combine in which the traveling unit and the threshing unit are operatively driven by the rotational power from the engine, while ensuring the necessary engine output and improving the fuel efficiency. The purpose is to provide a combine that can be improved.

  In order to achieve the above object, the present invention is a combine that transmits the rotational power of an engine whose output rotational speed is variable to at least the traveling part and the threshing part, and the upstream side in the transmission direction is operatively connected to the engine. The common transmission unit, a traveling transmission unit and a threshing transmission unit that transmit the common rotational power downstream of the common transmission unit to the traveling unit and the threshing unit, respectively, and the common transmission unit. An adjustment transmission device, an adjustment transmission actuator for shifting the adjustment transmission device, a processing crop selection member that is manually operated, and a control device, wherein the control device selects a crop type selected by the processing crop selection member. The engine rated operation mode in which the engine is operated so that the engine output becomes the rated rotational speed, and the engine output becomes lower than the rated rotational speed. The engine low speed operation mode for operating the engine can be selectively activated, and when the engine rated operation mode is activated, the adjustment transmission is in a reference speed change state and when the engine low speed operation mode is activated, There is provided a combine configured to operate the adjustment shift actuator so that the adjustment transmission is in a high-speed shift state at a higher speed than a reference shift state.

The combine may include an engine rotation speed changing operation member for artificially changing the output rotation speed of the engine.
In this case, the control device recognizes the set rotational speed set by the engine rotational speed changing operation member as the rated rotational speed, and at the start of the engine low-speed operation mode, a predetermined rotational speed is set with respect to the set rotational speed. The engine may be operated with a rotational speed obtained by multiplying a coefficient k (0 <k <1) as a target value.

  Preferably, when the rated engine speed is Es, the engine output speed in the engine low speed operation mode is El, the speed ratio in the reference speed state is Rs, and the speed ratio in the high speed speed state is Rh, The engine rated rotational speed, the engine output rotational speed in the engine low speed operation mode, the speed ratio in the reference speed change state, and the speed ratio in the high speed speed change state are set so as to satisfy Rh = Rs × (Es / El). The

In one form, the said treated crop selection member can select rice, wheat, and soybean as harvest crop species.
In this case, the control device activates the engine rated operation mode when rice is selected by the treated crop selection member, and activates the engine low speed operation mode when wheat or soybean is selected by the treated crop selection member. It is supposed to let you.

In the various embodiments, the combine may include a threshing transmission that is inserted in the threshing transmission unit, and a threshing transmission actuator that shifts the threshing transmission.
In this case, the control device may operate the threshing speed change actuator so that the speed change state of the threshing speed change device changes according to the crop type selected by the processed crop selection member.

  In the embodiment provided with the threshing speed change device and the threshing speed change actuator, when the treated crop selection member is capable of selecting rice, wheat and soybeans as treated crop types, the control device is: When the rice or wheat is selected by the treated crop selection member, the threshing transmission is in a high speed shift state, and when soybean is selected by the treated crop selection member, the threshing transmission is in a low speed shift state. A variable speed actuator may be actuated.

  According to the combine according to the present invention, the engine rated operation mode in which the controller operates the engine so that the engine output becomes the rated rotational speed and the engine output are rated according to the crop type selected by the processing crop selection member. The engine low speed operation mode for operating the engine to be lower than the rotational speed can be selectively activated, and the adjustment transmission device inserted in the common transmission portion is in the standard speed change state when the engine rated operation mode is activated. When the engine low-speed operation mode is started, the adjustment transmission actuator is operated so that the adjustment transmission device is in a high-speed transmission state that is higher than the reference transmission state, so that the necessary engine output is ensured according to the type of processed crop. In addition, fuel consumption can be improved.

FIG. 1 is a side view of a combine according to an embodiment of the present invention. FIG. 2 is a plan view of the combine. FIG. 3 is a schematic diagram of transmission of the combine. FIG. 4 is a control block diagram of the combine. FIG. 5 is a graph showing the relationship between the engine speed and the net average effective pressure.

Hereinafter, preferred embodiments of a combine according to the present invention will be described with reference to the accompanying drawings.
1 and 2 show a side view and a plan view of the combine 1 according to the present embodiment, respectively.
FIG. 3 shows a schematic transmission diagram of the combine 1.

  As shown in FIGS. 1 to 3, the combine 1 includes an airframe 10, an engine 20 supported by the airframe 10, a travel unit 40 in the form of a travel crawler connected to the airframe, and the airframe 10. The conveyor unit 150 connected to the cutting unit 100, the cutting unit 100 connected to the front end side of the conveyor unit 150, the threshing unit 200 and the sorting unit 250 supported by the machine body 10, and the grain sorted by the sorting unit 250 The grain storage part 50 which stores grain, the operation part 60, the control apparatus 500 (refer FIG. 4 below), the generator 70 driven by the said engine 20, and the electric power generated by the said generator 70 are stored. And a battery (not shown).

As shown in FIG.1 and FIG.2, the said combine 1 has comprised the form of the general purpose combine.
That is, the transport unit 150 includes a feeder house 160 whose base end is connected to the front part of the machine body 10 so as to be movable up and down, and a feeder house conveyor 170 disposed in the feeder house.

  The feeder house conveyor 170 includes a base shaft (not shown) supported along the body width direction on the base end side in the feeder house 160 and a body width direction on the front end side in the feeder house 160. A supported front end shaft (not shown), and the base end shaft and a feeder chain 171 wound around the front end shaft, and one of the base end shaft and the front end shaft is driven by a power source And the other is a driven shaft.

  The cutting unit 100 is connected to a platform 110 connected to the front end of the feeder house 160, a platform auger 115 disposed in the platform 110 along the body width direction, and a front upper part of the platform 110. And a cutting blade 125 disposed so as to face the lower opening of the platform 110 in front of the platform auger 115.

  In the cutting unit 100, the cutting reel 120 is rotationally driven around an axis along the body width direction while moving relative to the field with the forward travel of the combine 1, thereby planting in the field. The standing culm is scraped, and the root of the culm scraped by the harvesting reel 120 is trimmed by the cutting blade 125.

  The harvested corn straw is transported by the platform auger 115 toward the connection portion with the transport unit 150 and is inherited by the feeder house conveyor 170.

  In the transport unit 150, the harvested cereals inherited from the platform auger 115 are transported toward the threshing unit 200 on the rear side by the feeder house conveyor 170 in the feeder house 160.

  The threshing unit 200 includes a handling chamber 210 connected to the base end side of the transport unit 150, a handling cylinder 220 disposed in the handling chamber 210, and a receiving net disposed below the handling cylinder 220. 230.

In the present embodiment, the handling cylinder 220 is arranged so that the rotation axis is along the longitudinal direction of the machine body.
The handling cylinder 220 includes a rotating body 221 that is rotationally driven around a rotation axis by rotational power from a power source, and a blade body 222 (see FIG. 3) that is spirally provided on the outer peripheral surface of the rotating body 221. Have.
The receiving net 230 is disposed along the outer peripheral surface of the lower portion of the handling cylinder 220.

  In the threshing unit 200, the harvested cereal grains supplied from the transport unit 150 are threshed while being transported to the rear side of the machine body by the handling barrel 220 between the handling barrel 220 and the receiving net 230. The

  Of the threshing products such as cereals and cereals produced by the threshing processing, the threshing processing product smaller than the opening of the receiving net 230 passes through the receiving net body 230 by its own weight to the selection unit 250 below. Fall. On the other hand, relatively large threshing products such as waste are conveyed to a waste disposal unit 90 (see FIG. 3) at the rear of the machine.

  The sorting unit 250 includes an oscillating body 260 disposed below the handling cylinder 220 with the receiving net 230 interposed therebetween, an oscillating mechanism 265 that oscillates the oscillating body 260 by rotational power from a power source, The first basket 270 extending in the machine width direction so as to collect the second grain, the first conveyor 275 disposed in the first basket 270, and the second extending in the machine width direction so as to collect the second grain. A number 280, a second conveyor 285 disposed in the second number 280, and a tang 290 that blows a selection wind that passes from the front lower side to the rear upper side with respect to the swinging body 260 are provided.

  The oscillating body 260 includes a feed pan (no symbol) disposed in front, a chaff sheave (no symbol) disposed behind the feed pan, the amount of grain leakage being adjustable, and a lower portion of the chaff sheave. And a grain sieve (unsigned).

  In the sorting unit 250, the threshing processed product supplied from the threshing unit 200 is supplied to the chaff sheave through the feed pan or directly, and the chaff sheave and the glensheve are leaked out of the threshing processed product. Are aggregated in the first cocoon 270 as the first grain.

  The first grain is conveyed to the grain storage unit 50 by the first conveyor 275 and a cereal conveyor (not shown) connected to the first conveyor 275.

  Of the threshing product, the one that has leaked into the second cocoon 280 through the chaff sheave and the grain sieve is regarded as the second grain.

  The second grain is returned to the handling chamber 210 by the second conveyor 285 and the reduction conveyor 286 connected to the second conveyor 285 and again subjected to a sorting process by the sorting unit 250.

The operation unit 60 is supported by the body 10 on the front side of the body 10 and on the right side of the transport unit 150.
In the present embodiment, the driving unit 60 includes a cabin 61 that forms a control space, a driver seat 62 that is disposed in the cabin 61, a steering wheel 63 that is disposed in front of the driver seat 62, A plurality of operation members 510, 520 (see FIG. 4 below).

The grain storage unit 50 conveys the stored grain toward the grain tank 51 supported by the airframe 10 on the rear side of the operation unit 60 and on the right side of the threshing unit 200, and the discharge port in the grain tank 51. A discharge conveyor 52 disposed at a lower portion of the Glen tank 51, a vertical auger tube 53 standing in a vertical direction in a state of being connected to a discharge port of the Glen tank 51, and the vertical auger tube A horizontal conveyer 54 disposed in 53 and a horizontal agitator that can be swung horizontally around the vertical auger tube 53 and can be swung up and down around a horizontal axis in a state of being connected to the upper end of the vertical auger tube 53. An auger cylinder 55 and a horizontal conveyance conveyor 56 disposed in the horizontal auger cylinder 55 are provided.
In the present embodiment, the engine 20 is disposed behind the Glen tank 51.

FIG. 4 shows a block diagram of the control device 500.
As shown in FIG. 4, in the present embodiment, the control device 500 has a plurality of controllers such as a main machine controller 501 and an engine controller 502.

  Corresponding sensors and actuators are electrically connected to the plurality of controllers 501 and 502, respectively, and the plurality of controllers 501 and 502 are electrically connected to each other via a CAN communication bus 505.

  Each of the controllers 501 and 502 includes a calculation unit (hereinafter referred to as a CPU) including a control calculation unit that executes calculation processing based on signals input from various sensors, a ROM that stores a control program, control data, and the like. A memory that stores values and the like that are not lost even when the power is turned off, and that can rewrite the set values and the like, and a RAM that temporarily stores data generated during computation by the computation unit Department.

  As the output control of the engine 20, the control device 500 is configured to operate an engine rotation speed change actuator so that the output rotation speed of the engine 20 becomes a rated rotation speed.

  Specifically, as shown in FIG. 4, the combine 1 includes a fuel injection device 30 that acts as the engine rotation speed change actuator, and an operation side engine rotation speed sensor 20 a that detects an output rotation speed of the engine 20. doing.

As shown in FIG. 4, in the present embodiment, the fuel injection device 30 includes a fuel supply pump 32 that sucks fuel from a fuel tank 31 through a filter (not shown), and a pressure feed from the fuel supply pump 32. And a plurality of injectors 36 for injecting the accumulated fuel in the common rail 35 into each cylinder of the engine 20.
In addition, the code | symbol 35a in FIG. 4 is a pressure sensor which detects the internal pressure of the said common rail 35. FIG.

  In the normal control, the control device 500 operates the injector 46 using the rated rotational speed as the target rotational speed of the engine output rotational speed.

  Specifically, in the control device 500, control data indicating the relationship between the engine rotation speed and the injector control amount (fuel injection amount) is stored in advance in a storage unit such as a ROM. Controls the operation of the injector 36 using the control data.

  That is, the control device 500 operates the injector 36 so as to inject a fuel injection amount corresponding to the rated rotational speed calculated using the control data, and detects the actual engine detected by the engine rotational speed sensor 20a. It is determined whether or not the rotational speed matches the target engine rotational speed (the rated rotational speed), and the operation of the injector 36 is controlled so that the two coincide.

  As shown in FIG. 4, the combine 1 according to the present embodiment can arbitrarily set the engine rated rotation speed by an engine rotation speed changing operation member 510 that is manually operated.

  That is, the combine 1 further includes the engine rotation speed change operation member 510 such as an accelerator dial, and an operation side engine rotation speed sensor 510 a that detects an operation position of the engine rotation speed change operation member 510.

  Then, the control device 500 recognizes the set rotational speed by the engine rotational speed changing operation member 510 such as the accelerator dial inputted from the operation side engine rotational speed sensor 510a as the rated rotational speed.

Here, the power transmission structure in the combine 1 according to the present embodiment will be described.
In the combine 1, the traveling unit 40 and the threshing unit 200 having a large driving load are driven by the rotational power from the engine 20.

  That is, as shown in FIG. 3, the combine 1 has a common transmission portion 600 operatively connected to the engine 20 on the upstream side in the transmission direction, and a common rotational power from the downstream side in the transmission direction of the common transmission portion 600. 40 and a threshing transmission unit 620 that transmit to the threshing unit 200, respectively.

  With such a configuration, the control device 500 determines an engine rated operation mode in which the output rotational speed of the engine 20 is the rated rotational speed, and an output rotational speed of the engine 20 according to the type of processed crop. Is switched to an engine low speed operation mode in which the engine speed is lower than the rated rotation speed, and the combine 1 further includes an output rotation speed of the common transmission unit 600 when the engine rated operation mode is activated. It is configured to prevent or reduce a difference from the output rotational speed of the common transmission unit 600 when the engine low-speed operation mode is started.

  Specifically, as shown in FIG. 3 and FIG. 4, the combine 1 further includes a processed crop selection member 520 that is manually operated, an adjustment transmission 700 that is inserted in the common transmission unit 600, An adjustment transmission actuator 705 that is controlled by the control device 500 to shift the adjustment transmission 700 is provided.

The treated crop selection member 520 is configured to select an arbitrary crop from among a plurality of preset treated crops. The plurality of treated crops can include, for example, rice, wheat, and soybeans.
The operation position of the processed crop selection member 520 is detected by a sensor 520a.

  The combine 1 is provided with one or a plurality of low speed operation modes as the engine low speed operation mode as desired.

  For example, when rice, wheat and soybean are selectable by the treated crop selection member 520, the control device 500 activates the engine rated operation mode when rice is selected, It is configured to activate a common low speed operation mode when soy is selected.

  Instead, the control device 500 activates the engine rated operation mode when rice is selected, and when the wheat and soybean are selected, the first low speed operation mode and the second operation mode, respectively. It can also be configured to activate the low speed operating mode.

  The adjustment transmission device 700 has a reference shift state in which the output rotation speed of the common transmission unit 600 is set to a predetermined reference rotation speed when the engine output is at the rated rotation speed, and a speed ratio higher than the gear ratio in the reference shift state. It is configured to be able to take a high speed shift state with a gear ratio.

  The high speed shift state is a gear ratio that prevents or reduces a difference between the output rotation speed of the common transmission unit 600 and the reference rotation speed when the engine low speed operation mode is activated. The

The adjusted transmission 700 has a number of high speed shift states corresponding to the number of the engine low speed operation modes provided in the combine 1.
That is, when the engine low speed operation mode is only one type, the high speed shift state is also only one type, and when two types of engine low speed operation modes are provided, the two types of high speed shift states are provided. .

The adjustment transmission 700 can take various forms as long as the reference shift state and the high-speed shift state can be achieved.
For example, the adjusting transmission 700 can be a hydraulic (HST) or endless (cable) type continuously variable transmission, or a geared multi-stage transmission.

The adjustment speed change actuator 705 may take various forms as long as the adjustment speed change device 700 can be operated to change speed.
For example, the adjustment transmission actuator 705 can be an electric motor or a hydraulic actuator including a hydraulic cylinder device and an electromagnetic valve that switches hydraulic oil to the hydraulic cylinder device.

The control device 500 operates the adjustment transmission actuator 705 so that the adjusted transmission device 700 is in a reference transmission state when the engine rated operation mode is activated, and the adjustment transmission device 700 is activated when the engine low speed operation mode is activated. The adjustment speed change actuator 705 is operated so as to be in a high speed speed change state.
Note that reference numeral 700a in FIG. 4 is a sensor that detects an operating state (shift state) of the adjusting transmission 700.

By providing such a configuration, it is possible to improve fuel efficiency while securing necessary engine output torque.
That is, when processing rice, the engine 20 is subjected to a greater load than when processing wheat or soybeans.

  Accordingly, the control device 500 is configured to activate the engine rated operation mode when a crop such as rice that is heavily loaded on the engine 20 is selected by the treated crop selection member 520. Engine output torque can be secured.

On the other hand, the control device 500 is configured to activate the engine low speed operation mode when a crop having a relatively small load on the engine 20 such as wheat or soybean is selected by the processing crop selection member 520. Thus, fuel consumption can be reduced while ensuring the necessary engine output torque.
For example, the operating state of the engine can be shifted from region A to region B in FIG.

  As described above, when the rated rotational speed is artificially set by the engine rotational speed changing operation member 510 such as the accelerator dial, the controller 500 sets the engine set by the engine rotational speed changing operation member 510. The rotational speed changing actuator so that the rotational speed obtained by multiplying the rotational speed by a predetermined coefficient k (0 <k <1) is the engine output rotational speed in the engine low speed operation mode. 30 is to be activated.

  Further, as described above, the control device 500 operates the adjustment speed change actuator 705 so that the adjustment speed change device 700 is in a reference speed change state when the engine rated operation mode is started, and when the engine low speed operation mode is started. Since the adjusted transmission actuator 705 is operated so that the adjusted transmission 700 is in a high-speed shift state that is higher than the reference shift state, the common transmission unit 600 is switched between the engine rated operation mode and the engine low-speed operation mode. It is possible to prevent or reduce the difference in the output rotation speed.

  Therefore, it is effective that the driving control of the traveling unit 40 and the threshing unit 200 driven by the rotational power from the common transmission unit 600 is complicated by switching between the engine rated operation mode and the engine low speed operation mode. Can be prevented.

  Preferably, when the rated engine speed is Es, the engine output speed in the engine low speed operation mode is El, the speed ratio in the reference speed state is Rs, and the speed ratio in the high speed speed state is Rh, The engine rated rotational speed, the engine output rotational speed in the engine low speed operation mode, the speed ratio in the reference speed change state, and the speed ratio in the high speed speed change state are set so as to satisfy Rh = Rs × (Es / El). The

  According to such a configuration, the rotation speed of the common rotational power 600 can be made the same both when the engine rated operation mode is started and when the engine low speed operation mode is started, and the common rotational power is driven by the common rotational power. The rotational speed of the traveling unit 40 and the threshing unit 200 can be easily controlled.

  In the present embodiment, as shown in FIG. 3, the traveling system transmission unit 610 that transmits the rotational power from the common transmission unit 600 to the traveling unit 40 includes a traveling HST and a turning HST. A transmission 611 is inserted.

  On the other hand, a threshing clutch 621 and a threshing transmission 710 are interposed in the threshing transmission unit 620 that transmits the rotational power from the common transmission unit 600 to the threshing unit 200.

  The threshing clutch 621 engages or shuts off the power transmission of the threshing transmission unit 620 according to an artificial operation to the threshing operation member 530.

Specifically, as shown in FIG. 4, the combine 1 is operated by the threshing operation member 530, a sensor 530 a that detects the operation position of the threshing operation member 530, the threshing clutch 621, and the control device 500. A threshing clutch actuator 622 that is controlled and engages / disengages the transmission state of the threshing clutch 621 is provided.
In addition, the code | symbol 621a in FIG. 4 is a sensor which detects the engagement / disengagement state of the said threshing clutch 621.

  In the present embodiment, the shifting state of the threshing transmission device 710 changes according to the type of processed crop.

That is, as shown in FIGS. 3 and 4, the combine 1 is provided with a threshing shift actuator 715 that is controlled by the control device 500 to shift the threshing transmission device 710.
In addition, the code | symbol 710a in FIG. 4 is a sensor which detects the operating state (shift state) of the said threshing transmission.

The threshing transmission 710 can take various forms such as a hydraulic (HST), endless (cable, etc.) type continuously variable transmission, or a geared multi-stage transmission.
As shown in FIG. 3, in the present embodiment, the threshing transmission device 710 is a two-stage gear transmission having a high speed gear train 710H and a low speed gear train 710L.

The threshing speed change actuator 715 may take various forms as long as the threshing speed change device 710 can be shifted.
For example, the threshing speed change actuator 715 may be an electric motor or a hydraulic actuator including a hydraulic cylinder device and a solenoid valve that switches hydraulic oil to the hydraulic cylinder device.

  By providing such a configuration, it is possible to drive the threshing unit 200 at an appropriate rotation speed according to the type of the treated crop, thereby improving the threshing work efficiency.

  In the present embodiment, the control device 500 causes the threshing transmission device 710 to be in a high speed shifting state when the rice or wheat is selected by the processed crop selection member 520 (the handling cylinder 220 is at a high speed). The threshing speed change actuator 715 is actuated so that when the processed crop selection member 520 selects soybeans, the threshing speed change device 710 is in a low speed shift state (the handling cylinder 220 rotates at a low speed). And actuate the threshing gear shift actuator 715.

As shown in FIG. 3, in the present embodiment, the rotational power from the engine 20 is also transmitted to the mowing unit 100 and the transport unit 150.
That is, the combine 1 includes a cutting / conveying system transmission unit 630 that transmits the common rotational power downstream of the common transmission unit 600 in the transmission direction to the cutting unit 100 and the conveyance unit 150.

  In the present embodiment, as shown in FIG. 3, the harvesting / conveying system transmission unit 630 is branched from a portion of the traveling system transmission unit 610 that is located upstream of the traveling system transmission 611 in the transmission direction. Rotational power is configured to be transmitted to the feeder house conveyor 170 and the cutting blade 125.

  As shown in FIG. 3, a cutting clutch 631 is inserted in the cutting / conveying system transmission section 630 on the upstream side of the feeder house conveyor 170 and the cutting blade 125 in the transmission direction.

The reaping clutch 631 engages or interrupts the power transmission of the reaping system transmission unit in accordance with an artificial operation to the reaping operation member 540.
Specifically, as shown in FIGS. 3 and 4, the combine 1 includes the harvesting operation member 540, a sensor 540 a that detects the operation position of the harvesting operation member 540, the harvesting clutch 631, and the control device. A cutting clutch actuator 632 that is controlled by 500 and engages / disengages the transmission state of the cutting clutch 631 is provided.
In addition, the code | symbol 631a in FIG. 4 is a sensor which detects the engagement / disengagement state of the said mowing clutch 631. FIG.

In addition, the reaping operation member 540 and the threshing operation member 530 can be configured by a single reaping / threshing operation member.
In this case, the mowing / threshing operation member is configured to be able to take the mowing / threshing / cutting position, the mowing / cutting / threshing / putting position, and the mowing / threshing / cutting position.

  In the present embodiment, as shown in FIGS. 3 and 4, the platform auger 115 of the cutting unit 100 is not the rotational power from the engine 20 but a dedicated electric motor (platform auger electric motor) 750. Driven by.

The platform auger electric motor 750 is turned on / off according to the engagement / disengagement operation of the cutting clutch 631, using the electric power from the battery as a power source, and depends on the crop type selected by the processing crop selection member 520. The rotation speed is controlled.
Note that reference numeral 115 a in FIG. 4 is a sensor that detects the rotational speed of the platform auger 115.

  Specifically, a plurality of platform auger control data corresponding to assumed processing crops is stored in the control device 500 in advance, and when the cutting clutch 631 is engaged, the control device 500 The platform auger electric motor 750 is operated based on one control data corresponding to a crop type artificially selected by the processing crop selection member 520 among a plurality of platform auger control data.

  For example, when the assumed treated crops are rice, wheat and soybean, the control device 500 has platform auger control data for rice, wheat and soybean as the plurality of platform auger control data, respectively. Remembered.

  The platform auger control data for rice is used to operate the electric motor for the platform auger so that the platform auger 115 rotates at a constant reference rotation speed regardless of the traveling vehicle speed of the combine 1.

  The wheat platform auger control data includes the platform auger electric motor 750 so that the rotational speed of the platform auger 115 fluctuates in synchronism with the vehicle speed in a range of both the low speed side and the high speed side from the reference rotational speed. It shall be activated.

  In the soybean platform auger control mode, the platform auger electric motor 750 is operated so that the rotational speed of the platform auger 115 fluctuates in synchronization with the vehicle speed on the lower speed side than the reference rotational speed.

  That is, when the rotational speed of the platform auger 115 is represented by 0 <A <B <C <D, the control device 500 allows the platform auger 115 to rotate at a constant speed C when the processed crop is rice. When the platform auger electric motor 750 is actuated so that the processed crop is wheat, the platform auger 115 is rotated in a synchronized manner with the vehicle speed in the range of rotational speeds A to D. The electric motor 750 is operated, and when the processed crop is soybean, the platform auger electric motor 750 is operated so that the platform auger 115 rotates at a speed in synchronization with the vehicle speed in the range of the rotation speed 0 to B.

  In the present embodiment, as shown in FIGS. 3 and 4, the take-up reel 120 is also driven by a dedicated electric motor (electric motor for the take-up reel) 760 instead of the rotational power from the engine 20. Driven.

In other words, when the cutting clutch 631 is engaged, the control device 500 uses the electric power from the battery as a power source so that the scraping reel 120 rotates at a speed synchronized with the vehicle speed. The electric motor 760 for reels is operated.
In addition, the code | symbol 120a in FIG. 4 is a sensor which detects the rotational speed of the said pick-up reel 120. FIG.

  In the present embodiment, the control device 500 operates the electric motor 760 for the take-up reel using common control data (common vehicle speed tuning ratio) regardless of the type of processed crop. ing.

  Preferably, the control device 500 stores a plurality of scraping reel control data having different vehicle speed tuning ratios so that the operator can select one control data from the plurality of the scraping reel control data. Can be configured.

  That is, the control data is selected from among the plurality of pick-up reel control data by using a pick-up reel rotation speed selection operation member (not shown) according to the cutting conditions such as the direction of lodging of the treated crop. The control device 500 executes the operation control of the electric motor 760 for the take-in reel using the selected control data.

In the present embodiment, the rotational power from the engine 20 is also transmitted to the sorting unit 250.
That is, the combine 1 includes a sorting system transmission unit 640 that transmits the common rotational power downstream of the common transmission unit 620 in the transmission direction to the sorting unit 250.

  In the present embodiment, as shown in FIGS. 3 and 4, the sorting system transmission unit 640 branches from a portion of the harvesting / conveyance system transmission unit 630 that is located upstream of the harvesting clutch 631 in the transmission direction. The rotational power thus transmitted is transmitted to the first conveyor 275 and the second conveyor 285.

  As shown in FIG. 3, a sorting clutch 641 is inserted in the sorting system transmission section 640 on the upstream side of the first conveyor 275 and the second conveyor 285 in the transmission direction.

The selection clutch 641 engages or shuts off the power transmission of the selection system transmission unit 640 in synchronization with the threshing clutch 621.
Specifically, as shown in FIGS. 3 and 4, the combine 1 includes the selection clutch 641, a selection clutch actuator 642 that is controlled by the control device 500 to engage and disengage the transmission state of the selection clutch 641. Is provided.

And when the said control apparatus 500 engages the said threshing clutch 621 according to the entering operation of the said threshing operation member 530, the said selection clutch 641 is also engaged and according to the cutting operation of the said threshing operation member 530 When the threshing clutch 621 is disconnected, the selection clutch actuator 642 is operated so that the selection clutch 641 is also disconnected.
In addition, the code | symbol 641a in FIG. 4 is a sensor which detects the operating state of the said selection clutch 641. FIG.

  In the present embodiment, as shown in FIGS. 3 and 4, the rocking body 260 of the sorting unit 250 is not the rotational power from the engine 20 but a dedicated electric motor (electric motor for rocking body) 770. Driven by.

  The oscillator electric motor 770 is operated or stopped by the control device 500 in response to the engagement / disengagement of the selection clutch 641 while using electric power from the battery as a power source.

The control device 500 drives the electric motor 770 at a constant rotation speed at a predetermined rotational speed regardless of the vehicle speed and the type of the processed crop when the electric motor 770 for the swinging body is in operation. The rocking body 260 is swung through the mechanism 265.
In addition, the code | symbol 770a in FIG. 4 is a sensor which detects the rotational speed of the said electric motor 770 for rocking bodies.

As shown in FIG. 4, in the present embodiment, the red pepper 290 is also driven not by the rotational power from the engine 20 but by a dedicated electric motor (electric motor for red pepper) 780.
In addition, the code | symbol 290a in FIG. 4 is a sensor which detects the rotational speed of the said Kara 290. FIG.

  The electric motor 780 for red pepper is operated or stopped by the control device 500 in accordance with the engagement / disengagement of the selection clutch 641 while using electric power from the battery as a power source.

  The controller 500 controls the operation of the electric motor 780 for carp depending on the type of the processed crop when the electric motor 780 for the swinging body is operated.

  That is, the control device 500 stores in advance a plurality of tang control data corresponding to the assumed processed crop, and when the selection clutch 641 is engaged, the control device 500 stores the plurality of tang control data. Based on one control data corresponding to the crop type artificially selected by the processed crop selection member 520 among the control data, the electric motor for tangs 780 is operated.

For example, when assumed processing crops are rice, wheat and soybean, the control device 500 stores rice, wheat and soybean tang control data as the plurality of tang control data, respectively. The
The control device 500 controls the operation of the electric motor 780 for tang using the tang control data corresponding to the crop type selected by the processed crop selection member 520.

  The control data for rice, wheat, and soybean has respective standard rotation speeds of the red pepper, and as the vehicle speed increases, the rotation speed of the red pepper 290 increases from the normal rotation speed of the red pepper. Thus, the air volume of the tang 290 increases in accordance with an increase in the amount of processed crops processed by the sorting unit 250.

  As for the above-mentioned standard rotation speed for soybean, the highest speed is used for soybeans, then the highest speed for rice, and the lowest speed for wheat.

  Preferably, the control device 500 can operate the electric motor 780 for red pepper using control data obtained by correcting the control data for rice, wheat, and soybean.

  For example, when the combine 1 is provided with a loss sensor (not shown), correction is made to the tang control data so that the rotational speed of the tang 290 is reduced in accordance with an increase in loss. It can be performed.

As shown in FIGS. 3 and 4, in this embodiment, the prefan 295 and the second fan 296 are also driven by dedicated electric motors 785 and 786, respectively.
Reference numerals 295a and 296a in FIG. 4 are sensors that detect rotational speeds of the prefan 295 and the second fan 296, respectively.

  The controller 500 can operate the prefan electric motor 785 and the second fan electric motor 786 in synchronization with the carp electric motor 780.

DESCRIPTION OF SYMBOLS 1 Combine 40 Traveling part 200 Threshing part 500 Control apparatus 510 Engine rotation speed change operation member 520 Processed crop selection member 600 Common transmission part 610 Traveling system transmission part 620 Threshing system transmission part 700 Adjusting transmission device 705 Adjusting transmission actuator 710 Threshering transmission apparatus 715 Threshing speed actuator

Claims (6)

A combine that transmits the rotational power of the engine whose output rotational speed is variable to at least the traveling part and the threshing part,
A common transmission portion whose transmission direction upstream side is operatively connected to the engine, and a traveling transmission portion and a threshing transmission portion that transmit common rotational power downstream of the common transmission portion in the transmission direction to the traveling portion and the threshing portion, respectively. And an adjustment transmission device inserted in the common transmission unit, an adjustment transmission actuator for shifting the adjustment transmission device, a processing crop selection member that is manually operated, and a control device,
The control device includes an engine rated operation mode in which the engine is operated so that the engine output becomes a rated rotational speed according to a crop type selected by the processing crop selection member, and the engine output is lower than the rated rotational speed. The engine low-speed operation mode for operating the engine can be selectively activated so that the adjustment transmission device is in a reference shift state when the engine rated operation mode is activated and when the engine low-speed operation mode is activated. A combine, wherein the adjusting transmission actuator is operated so that the adjusting transmission device is in a high speed shifting state higher than a reference shifting state. An engine rotation speed changing operation member for artificially changing the output rotation speed of the engine;
The control device recognizes the set rotational speed set by the engine rotational speed changing operation member as the rated rotational speed, and when the engine low speed operation mode is activated, a predetermined coefficient k ( The combine according to claim 1, wherein the engine is operated with a rotation speed obtained by multiplying 0 <k <1) as a target value.   When the rated engine speed is Es, the engine output speed in the engine low speed operation mode is El, the speed ratio in the reference speed state is Rs, and the speed ratio in the high speed speed state is Rh, Rh = Rs The combine according to claim 1 or 2, wherein x (Es / El) is satisfied. The treated crop selection member can select rice, wheat and soybeans as the harvested crop species,
The control device activates the engine rated operation mode when rice is selected by the treated crop selection member, and activates the engine low speed operation mode when wheat or soybean is selected by the treated crop selection member. The combine according to any one of claims 1 to 3, characterized in that: A threshing transmission that is inserted in the threshing transmission unit, and a threshing transmission actuator that shifts the threshing transmission;
The said control apparatus operates the said threshing speed-change actuator so that the speed change state of the said threshing speed-change apparatus may change according to the crop kind selected by the said processing crop selection member. Crab combine. The treated crop selection member can select rice, wheat and soybean as treated crop species,
When the rice or wheat is selected by the processing crop selection member, the control device is in a high speed shifting state, and when soybean is selected by the processing crop selection member, the threshing transmission device is in a low speed shifting state. The combine according to claim 5, wherein the threshing speed change actuator is operated.