JP2012060936A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine harvester equipped with raking operation means easily operating the driving of a reaping device when a machine body is stopped, without a delay in the operation.SOLUTION: The combine harvester includes a side panel 31 positioned at the lateral side of a controlling seat 20 and a front panel 32 positioned in front of the controlling seat 20 as a controlling part panel 30, arranging a traveling transmission lever 21 on the side panel 31, arranging a steering lever 22 at the front panel 32, and arranging a pushing operation device 27 for a raking-in command for turning on a reaping clutch in the stopping state of the machine body, on the controlling part panel 30 at a forward side than a position where the traveling transmission lever 21 is arranged and further near the position where the traveling transmission lever 21 is arranged rather than the position where the steering lever 22 is arranged.

Description

  The present invention relates to a combine equipped with a scraping operation means for engaging and operating a mowing clutch while the machine is stopped.

In general, a combine performs a harvesting and conveying operation in synchronization with the airframe traveling speed. Therefore, when the aircraft is stopped, the harvesting processing device that performs the harvesting and conveying operation is controlled to be stopped. However, if the driving of the harvesting processing device is stopped when the machine is stopped, the posture of the transport may be disturbed, for example, the grain culm in the middle of transport immediately after the harvesting may drop off. For this reason, some kind of scraping operation means is provided so that the cutting processing device can be driven even when the machine is stopped.
As described above, a combine described in the following [1] is known as a combine equipped with a scraping operation means for engaging and operating the mowing clutch while the machine is stopped.

[1] When a manual forced scratching switch as a scraping operation means is provided at the grip of the traveling speed change lever provided on the side panel located on the side of the control seat, and the manual forced scratching switch is operated. A configuration in which the reaping processing device is driven for a predetermined time to feed cereals in the middle of conveyance to the threshing device (see, for example, Patent Document 1).

JP 2003-265019 A (refer to paragraphs “0012” and “0013”, FIG. 8 and FIG. 10)

  In the structure described in [1] above, since the manual forced scratching switch is provided at the grip of the traveling speed change lever, it is convenient when the manual forced scratching switch is operated during the traveling shift operation. For example, if you try to operate the manual forced scratching switch from a state where you have released your hand from the travel speed change lever, you can always sense where the travel speed change lever has been operated. It is difficult to grasp. Therefore, it is necessary to operate the manual forced scratching switch after visually looking for the lateral shift lever. The manual forced pick-up switch is to be operated quickly before the cutting device is stopped when the machine is stopped.However, if the manual forced pick-up switch is used only for confirmation, There is a concern that the processing posture of the cereals may be disturbed due to the delay in driving the processing device.

  An object of the present invention is to provide a combine provided with a scraping operation means that can easily operate the cutting processing device when the machine is stopped without operating delay.

The technical means of the combine according to the present invention taken to achieve the above object has structural features and operational effects in the following points.
[Solution 1]
As the control part panel, it is provided with a side panel positioned on the side of the control seat, and a front panel positioned on the front side of the control seat,
A travel shift lever is provided on the side panel, a steering lever is provided on the front panel,
A cutting clutch is installed in a state where the airframe is stopped on the control unit panel on the front side of the position where the travel shift lever is disposed and closer to the position where the travel shift lever is disposed than the position where the steering lever is disposed. A push operation tool for a scraping command for entering operation is provided.

[Operation and effect of invention according to Solution 1]
According to the configuration shown in the solution means 1, the push-in operation tool for the take-in command as the take-in operation means for entering and operating the mowing clutch when the machine is stopped is located on the front side of the place where the traveling speed change lever is provided. In addition, the driver sitting on the control seat is more likely to enter the field of view in a driving posture facing forward, on the control panel closer to the position where the travel shift lever is provided than where the steering lever is provided. Deployed in position.
Further, the pushing operation tool for the scraping command at that position is provided at a fixed position where the position does not change due to traveling shift or the like, and therefore has an advantage that it can be easily operated quickly when necessary.

[Solution 2]
Another technical means of the combine according to the present invention taken to solve the above problems includes a side panel positioned laterally of a control seat as a control unit panel, and a traveling speed change lever is provided on the side panel. And a location where the traveling speed change lever is deployed in front of the location where the traveling speed change lever is provided and a location where the steering handle is provided. A pushing operation tool for a scraping command for operating the mowing clutch while the aircraft is stopped is disposed on the control unit panel closer to the vehicle.

[Operation and effect of invention according to Solution 2]
According to the configuration shown in the solution means 2 described above, the push-in operation tool for the scraping command as the scraping operation means for entering and operating the mowing clutch when the machine is stopped is more forward than the position where the traveling speed change lever is provided. On the side of the control panel closer to the location where the travel shift lever is provided than the location where the steering handle is provided, and the driver who is seated in the control seat enters the field of view in a driving posture facing forward. It is deployed in an easy position.
Further, the pushing operation tool for the scraping command at that position is provided at a fixed position where the position does not change due to traveling shift or the like, and therefore has an advantage that it can be easily operated quickly when necessary.

[Solution 3]
Another technical means of the combine according to the present invention taken to solve the above problems includes a side panel positioned laterally of a control seat as a control unit panel, and a traveling speed change lever is provided on the side panel. And a steering handle provided on the front side of the control seat, and a push operation tool for a scraping command for operating the cutting clutch to be operated when the machine is stopped is disposed on the steering handle. To do.

[Operation and effect of invention according to Solution 3]
According to the configuration shown in the solution means 3 described above, the steering handle is provided with a pushing operation tool for a scraping command as a scraping operation means for entering and operating the mowing clutch in a state where the airframe is stopped. It is placed in a position that is easy for the driver on the control seat to enter the field of view with the driving posture facing forward.
If the push-in operation tool for the scraping command located on the steering handle is provided at a position where the position does not change depending on the operation state of the steering handle, such as the rotation center portion of the steering handle, Since it is deployed at a fixed position, it has an advantage that it is easy to operate quickly when necessary.
It is also conceivable to provide a pushing operation tool for a scraping command located on the steering handle at a location where the absolute position changes depending on the operating state of the steering handle, such as an outer peripheral loop portion of the steering handle. In this case, although the absolute position changes depending on the operation state of the steering handle, the position on the steering handle is constant, and even if the steering operation is performed, the pushing operation tool for the scraping command and the steering handle The relative positional relationship does not change. Since the steering handle is operated by gripping during the steering operation, there is almost no change in the position of the grip operation position and the push operation tool for the scraping command. It is easy for the operator to know where it is located.
Therefore, also in this case, there is an advantage that it is easy to quickly operate the pushing operation tool for the scraping command when the operation is necessary.

[Solution 4]
Another technical means of the combine according to the present invention taken to solve the above problem is that a traveling drive hydrostatic continuously variable transmission is installed in a traveling drive system that transmits power from the engine to the traveling device. The power input to the pump shaft of the hydrostatic continuously variable transmission is configured to be transmitted from the motor shaft to the traveling device via the transmission mechanism in the traveling transmission case, and the driving force to the reaping processing device is transmitted. The hydrostatic continuously variable transmission is configured to be taken out from the pump shaft.

[Operations and effects of invention according to Solution 4]
According to the configuration shown in the solution means 4 described above, the pump shaft of the hydrostatic continuously variable transmission for traveling speed change provided in the traveling drive system that transmits the driving force to the cutting processing device to the traveling device from the engine. Therefore, even if the hydraulic motor of the hydrostatic continuously variable transmission is operated to the neutral position and the travel device is stopped, the engine power is transmitted and the pump shaft rotates at a constant speed. The mowing processing device can be driven using the power.
Therefore, it is not necessary to configure the driving force of the harvesting processing device when the traveling device is stopped from a separate system from the traveling drive transmission system, and there is an advantage that the structure can be simplified. is there.

It is a whole side view of a combine. It is a whole top view of a combine. It is a block diagram which shows a power transmission system. It is a block diagram which shows a control system. It is a top view which shows the control part panel part. It is a front view which shows a boarding operation part. The headlamp part is shown, (a) is a perspective view, (b) is a sectional view taken along line VII-VII in FIG. It is a time chart which shows the control system of an electric motor. It is a flowchart which shows the control system of an electric motor. It is a flowchart which shows the control system of an electric motor. It is a flowchart which shows the control system of an electric motor. It is a flowchart which shows the control system of an electric motor. It is a flowchart which shows the control system of an electric motor. It is a flowchart which shows the control system of an electric motor. It is a schematic plan view which shows the boarding operation part of another embodiment. It is a schematic plan view which shows the boarding operation part of another embodiment. It is a schematic plan view which shows the boarding operation part of another embodiment. It is a schematic plan view which shows the boarding operation part of another embodiment. It is a schematic plan view which shows the boarding operation part of another embodiment. It is a schematic plan view which shows the boarding operation part of another embodiment. It is explanatory drawing which shows the operation state of a combine.

Hereinafter, the combine which concerns on this invention is demonstrated based on drawing.
[Overall structure of combine]
FIG. 1 shows the entire side of the combine. This combine is provided with a pair of left and right crawler type traveling devices 1L, 1R at the lower part of the body frame 10, and the traveling body 1 is configured to be able to travel by driving the traveling devices 1L, 1R.
At the front part of the traveling machine body 1, there is provided a three-frame four-line mowing processing device 3 that can freely move up and down, cuts the planted cereals in the field, and conveys the harvested cereals backward. The threshing device 4 that receives the cereals harvested by the reaping processing device 3 and threshing and sorting the cereal, and the grain tank 5 that stores the grains obtained by threshing and sorting the threshing device 4 Is mounted, and the boarding operation part 2 is formed on the traveling machine body 1 in front of the grain tank 5.

  The mowing processing device 3 includes a plurality of weeding tools 3b positioned at the front end portion of the mowing processing device 3 when the mowing unit frame 3a is pivoted up and down with respect to the traveling machine body 1 by a hydraulic cylinder 17 for raising and lowering. Is configured to move up and down into a descending working state in which the grass is lowered to the vicinity of the ground and a non-working state in which the weeding tool 3b is lifted from the ground. When the traveling machine body 1 is made to travel with the cutting processing device 3 in the descending work state, the cutting processing device 3 adjoins the planted cereal grains located on the plurality of planting ridges to be cut by the corresponding weeding tools 3b. Planting cereals of planted stalks and weeding, and planting cereals from each weeding tool 3b are raised and processed by a corresponding pulling device 3c, and cut by a clipper-shaped cutting device 3d. The harvested cereal meal from 3d is conveyed backward by the conveying device 3e and supplied to the starting end of the threshing feed chain 4A of the threshing device 4.

  The threshing device 4 feeds the tip side to a handling chamber (not shown) while sandwiching the stock side of the harvested cereal by the threshing feed chain 4A and transporting it backward, and a handling cylinder that rotates the harvested cereal (see FIG. (Not shown). Further, the threshing grains carried out from the threshing apparatus 4 are collected and stored in the grain tank 5, and the threshing grains stored in the grain tank 5 are discharged to the outside by the screw conveyor type grain discharging device 5a. It is configured. Further, the waste straw after the threshing process is transported to the rear of the machine body and is shredded by the waste wall processing apparatus 6 and then discharged from the rear of the machine body.

On the conveyance start end side of the threshing feed chain 4A of the threshing device 4, the state where the harvested cereal is floated from the conveyance start end of the threshing feed chain 4A and received and supported, and the harvested cereal trough fed from the harvesting processing device 3 is A cereal acceptor 18 configured to be switchable in posture is provided so as to be retreated so as to be supplied to the conveyance start end of the threshing feed chain 4A.
The cedar catching body 18 is constituted by a plate-like body whose upper end edge is arranged to receive and support the harvested cereal from the lower side, and when the state is switched to the receiving and supporting state, the traveling state of the machine body is stopped. Thus, it is possible to perform a pillow handling operation of manually feeding the cereals mounted on the upper end edge of the cereal acceptor 18 to the threshing feed chain 4A. When carrying out a normal mowing and threshing operation with the machine running, the culm receiving body 18 is switched to a state where it is retracted downward from the conveying start end of the threshing feed chain 4A.

[Structure of transmission system]
Next, the transmission structure of this combine is demonstrated.
As shown in FIGS. 3 and 4, the power of the engine E is transmitted to a hydrostatic continuously variable transmission 7 (corresponding to a traveling transmission) for traveling speed change via a transmission belt 14 and a transmission pulley 15. The shift output from the hydrostatic continuously variable transmission 7 is transmitted to each of the traveling devices 1R and 1L via a transmission mechanism (not shown) in the mission case 9.
The power of the engine E is transmitted to the threshing device 4 via the threshing clutch 11, and the threshing clutch 11 is provided with a threshing sensor 11a for detecting the on / off state.
Further, the cutting processing device 3 is cut through the transmission belt 13 and the cutting clutch 12 so that the power from the transmission shaft 16 that also serves as the input shaft of the hydrostatic continuously variable transmission 7 is transmitted. A reaping sensor 12a is attached to the reaping clutch 12 that is transmitted to the processing device 3 and detects the on / off state.

  The hydrostatic continuously variable transmission 7 is composed of a variable hydraulic pump 7A (see FIG. 4) driven by power from an engine E mounted on a combine traveling machine body 1 and oil supplied from the variable hydraulic pump 7A. It is constituted by a hydrostatic continuously variable transmission (HST) having a well-known structure constituted by a pair with a rotationally driven hydraulic motor 7B (see FIG. 4). The power of the engine E is transmitted to the transmission shaft 16 which is the pump shaft of the variable hydraulic pump 7A through the transmission belt 14 and the transmission pulley 15.

The transmission case 9 is internally provided with an output shaft (not shown) from the hydraulic motor 7B of the hydrostatic continuously variable transmission 7, and the transmission output from the output shaft is a pair of left and right traveling devices 1R, 1L is transmitted. Instead of the shift output from the hydrostatic continuously variable transmission 7, the rotational power of the transmission shaft 16 input to the hydrostatic continuously variable transmission 7 is transmitted to the cutting processing device 3 as it is. .
Further, in the transmission case 9, there is a gear for transmitting a shift output from an output shaft (not shown) of the hydrostatic continuously variable transmission 7 to the traveling apparatuses 1R and 1L by performing a high / low shift operation. An auxiliary transmission (not shown) including a transmission mechanism is also provided.

A main transmission lever 21 (corresponding to a traveling transmission lever) for operating the hydrostatic continuously variable transmission 7 at high and low speeds and a steering lever 22 for turning operation are exposed on the control panel 30 of the riding operation section 2. It is provided.
As shown in FIG. 4, the shifting operation by the main transmission lever 21 is performed from the hydrostatic continuously variable transmission 7 by changing the pump swash plate angle of the hydrostatic continuously variable transmission 7 by operating the main transmission lever 21. The steering operation by the steering lever 22 is detected by the potentiometer 22a by detecting the right turning operation and the left turning operation of the steering lever 22 in the transmission mechanism of the transmission case 9. The left and right traveling devices 1L and 1R are separately controlled by a turning operation mechanism (not shown) provided so that the aircraft can be steered.

[Structure of boarding operation part]
As shown in FIGS. 5 and 6, the boarding operation unit 2 includes a control seat 20 on which the operator sits on the operation unit floor 2 a, and a side portion located on the left lateral side of the control seat 20. A control tower 40 comprising a control tower 41 and a front control tower 42 standing on the front side of the control seat 20 is provided.
On the upper surface side of the control tower 40, a control panel 30 is provided that extends to the front and left side of the control seat 20, and this control panel 30 is a side provided on the upper surface of the side control tower 41. A panel 31 and a front panel 32 provided on the upper surface of the front control tower 42 are provided.

On the side panel 31, an operation area of the main transmission lever 21 for operating the hydrostatic continuously variable transmission 7 at a high and low speed is provided on the side of the control seat 20, and a driver sitting on the control seat 20 It is deployed from the vicinity of the front edge of the control seat 20 toward the front side in the front-rear direction so that it can be easily gripped and operated with the left hand.
A sub-transmission device (not shown) constituted by a gear transmission mechanism in the transmission case 9 is provided at a position corresponding to a lateral side portion far from the control seat 20 with respect to the operation region of the main transmission lever 21. A sub-transmission lever 23 is provided for high / low speed change operation. An accelerator lever 24 for artificially changing the engine speed is provided on the rear side of the main transmission lever 21 and the auxiliary transmission lever 23. An auto clutch button 25 is provided on the side panel 31 on the rear side of the main transmission lever 21 and the auxiliary transmission lever 23 and on the side farther from the control seat 20 than the accelerator lever 24.

The auto clutch button 25 includes an auto clutch control mode in which the cutting clutch 12 is turned on and off in conjunction with a lifting operation of a predetermined height or more of the cutting processing device 3, and turning on and off of the cutting clutch 12 by cutting off the linkage. The control state of the motor control means 102 of the control device 100 composed of a microcomputer, which will be described later, is switched to an auto clutch release mode that is not linked to the lifting operation of the device 3 above a predetermined height. It is configured using a push-on switch of a push-on / push-off type in which an on / off state is alternately switched.
In the auto clutch control mode, when the cutting clutch 12 is in the engaged state in the normal cutting operation state while the traveling vehicle 1 is traveling, if the cutting processing device 3 rises to a predetermined height or more, the operation is linked. The mowing clutch 12 is turned off. On the other hand, when the cutting processing device 3 is lowered from this state to a height lower than the predetermined height, the cutting clutch 12 is again engaged in association with the operation. Whether or not the cutting processing device 3 has risen to a predetermined height or more is detected by a height detection sensor 38 composed of a potentiometer, by detecting the up-and-down swing angle of the cutting unit frame 3a with respect to the traveling machine body 1. Based on the above, the control device 100 to be described later makes a determination.
In the auto clutch release mode, the linkage between the lifting operation of the reaping processing device 3 and the on / off operation of the reaping clutch 12 is cut off, and therefore the on / off operation of the reaping clutch 12 is performed as an ascending / descending operation of a predetermined height or more of the reaping processing device 3. No longer relevant.

Further, the side panel 31 is provided with an integrated switch 26 and a liquid crystal display device 28 at a position on the front side of the position where the main speed change lever 21 is disposed, at a position that is easy to see for the driver sitting on the control seat 20. ing.
The integrated switch 26 is used for operating the reaping clutch 12 and the threshing clutch 11 suitable for performing a normal reaping and threshing operation while the aircraft is running, and for performing a pillow handling operation while stopping the aircraft. Push-on / push-off type push button switch that can be switched to a suitable operation mode by one-touch operation, and can be switched on and off each time the push operation is performed with one touch. It is comprised using. When it is detected that it is in the on state by being pushed, a control start signal is input to the motor control means 102 of the control device 100 comprising the microcomputer shown in FIG.
The liquid crystal display device 28 is for displaying various information such as the engine speed and the remaining amount of fuel.

The front panel 32 extends in the right lateral direction from near the front end portion of the side panel 31, and the front panel 32 is provided with a steering lever 22 for turning operation disposed near the right end portion of the front panel 32. In addition, a scraping button 27 (corresponding to a push operating tool for a scraping command) as a scraping operation means is provided at a position closer to the side where the side panel 31 exists than the steering lever 22.
This scraping button 27 is located immediately in front of the right and left center of the control seat 20 and at the center of the left and right sides of the front panel 32 at a position that can be seen from below a gate-shaped handrail 43 described later in a state of being seated on the control seat 20. It is disposed at the rear, and is provided at a position where it can be easily operated on the lower side of a gate-shaped handrail 43 described later with a hand opposite to the hand holding the steering lever 22.
The raking button 27 enables the cutting clutch 12 to be engaged even when the aircraft is stopped, and enables the threshing drive of the harvesting cereal by the cutting clutch 12 and the threshing drive when the threshing clutch 11 is engaged. It is configured by using a push-on / push-off type push button switch in which an on / off state is alternately switched every time a one-touch pushing operation is performed.
When the scraping button 27 is pushed and detected to be in the on state, a forced scratching start signal is input to the motor control means 102 of the control device 100 including a microcomputer, which will be described later, and the pushing operation is again performed. Then, when it is detected that it is in the cut state, a forced scratching end signal is input.

As shown in FIG. 6, the front control tower 42 is integrally provided with a gate-shaped handrail 43 that functions as an armrest at the upper portion thereof, and the front side is irradiated with the front in the aircraft traveling direction. The headlight 45 is equipped.
As shown in FIGS. 6 and 7, the headlamp 45 is fitted into each of the pair of upper and lower recesses 46 formed in the front panel 44 constituting the front wall of the front control tower 42 and each recess 46. And a pair of light source lamps 47 mounted in a state.
In the recess 46, through holes 46a are formed in the upper half on the inner back side for passing the conductive harness 47a to the light source lamps 47 having the same specifications. A fixing portion 46b for fixing and fixing with screws 48 from the back side of the front panel 44 in a state where the mounting target portion provided on the upper side of the light source lamp 47 is sandwiched from both the left and right sides so as to be fixed in the recess 46. Is provided.

The concave portion 46 formed in the front panel 44 is such that the upper concave portion 46 is located closer to the right end side of the fuselage (left side in FIG. 6), and the lower concave portion 46 is located closer to the upper fuselage 46 than the upper concave portion 46. It is formed so as to be located on the left side (right side in FIG. 6).
Each light source lamp 47 is individually attached and fixed to the fastening portion 46b in the recess 46, whereby the vertical angles of the optical axes L1 and L2 with respect to the horizontal plane can be individually changed. Therefore, for example, as shown in FIG. 7, the upper light source lamp 47 is mounted so that the optical axis L2 of the light source lamp 47 below the optical axis L1 of the upper light source lamp 47 is set downward. The light source lamp 47 on the lower side can illuminate the position immediately before the aircraft traveling direction.
In this way, the lower light source lamp 47 is illuminated with the optical axis L2 of the lower light source lamp 47 downward so as to illuminate the immediately preceding position in the aircraft traveling direction. It can also serve as a work light for facilitating the cutting work by irradiating the original side brightly.

[Explanation of control system]
FIG. 4 shows a combine control system.
The control device 100 is configured to operate a work switching device 36 for performing on / off operation of the reaping clutch 12 and the threshing clutch 11 and switching operation between the action posture and the action release posture of the culm receiving body 18. ing. The work switching device 36 includes a cam body (not shown) and a cam follower (not shown) that are driven in accordance with forward / reverse operation of the electric motor 35, and the cam follower operated by the cam body is used as the reaping clutch. 12, the threshing clutch 11, and the grain culm receiving body 18 are connected by a coupling measure, and the on / off operation of the reaping clutch 12 and the threshing clutch 11, and the raising / lowering operation of the grain culm receiving body 18 are rotated by the electric motor 35. It is configured to be performed by operation.

The operations of the harvesting clutch 12, the threshing clutch 11, and the culm receiving member 18 by the work switching device 36 are performed in association with the forward / reverse operation of the electric motor 35 as shown in FIG.
That is, FIG. 8 is a time chart showing respective operation orders regarding the on / off operation of the threshing clutch 11 and the reaping clutch 12 and the position changing operation of the culm receiving body 18 by the work switching device 36. The left end portion in the figure shows a state where the cam body provided in the work switching device 36 is operated to the non-work position T1.
In this non-working position T1, the threshing clutch 11 and the reaping clutch 12 are both in a disengaged state, and the cedar receiving body 18 receives the reaping cereal from the lower side at the upper edge, and from the conveyance start end of the threshing feed chain 4A. It is operated to the working position where it is lifted and received and supported.

  When the cam body is rotated in the forward rotation direction by the driving force of the electric motor 35 from the non-work position T1, the threshing clutch 11 is engaged before reaching the pillow handling position T2 set in the middle of the rotation operation range. , The harvesting clutch 12 is still maintained in the disengaged state, and the culm receiving body 18 remains in the operating position. This location is used as the pillow handling position T2.

  When the cam body is further rotated in the forward direction beyond the pillow handling position T2, the culm receiving body 18 located at the operating position is retracted downward from the conveyance start end of the threshing feed chain 4A. Thus, the reaping clutch 12 is also engaged before reaching the working position T3 that is the stroke end in the forward rotation direction of the cam body when the threshing feed chain 4A is switched to the release position side where the cereal conveyance can be performed by the conveyance start end. The state is switched, and at the work position T3, the threshing clutch 11 and the reaping clutch 12 are jointly operated to be in the state, and the culm receiving body 18 is operated to the release position.

  Next, when the cam body is rotated in the reverse rotation direction from the work position T3, the reaping clutch 12 is switched to the disengaged state before reaching the pillow handling position T2 set in the middle of the rotation operation range, and the threshing clutch 11 Is still maintained in the entering state, and the cereal receptacle receiving body 18 is moved from the release position to the operating position. This location is used as a pillow handling position T2.

  When the cam body is further rotated in the reverse direction beyond the pillow handling position T2, the threshing clutch 11 is switched to the disengaged state, the reaping clutch 12 is maintained in the disengaged state, and the culm receiving body 18 is in the operating position. Returning to the non-working position T1 while remaining in position.

[Control operation]
Next, the control operation by the control device 100 will be described.
The control device 100 receives a detection signal of the engine tachometer 51 for detecting the engine speed, a detection signal of the fuel gauge 52, and the like, and a predetermined display state can be obtained based on the input signals. In addition, a control program for outputting a display signal to the liquid crystal display device 28 is provided as the travel control means 101 stored in advance in a nonvolatile memory.
Further, separately from the travel control means 101, the electric motor 35 of the work switching device 36 is driven to rotate in the forward direction or the reverse direction, so that the reaping clutch 12, the threshing clutch 11, and the culm receiving body 18 are predetermined. The motor control means 102 in which a control program for controlling the operation state is stored in a nonvolatile memory in advance is provided.
This motor control means 102 is integrated with a detection signal of a potentiometer 21a for determining the operation position of the main transmission lever 21 for operating the hydrostatic continuously variable transmission 7 at high and low speeds, and for starting the operation of the work switching device 36. The operation signal of the switch 26, the detection signal of the potentiometer 37 for detecting the rotation angle of the rotation drive shaft for driving the cam body provided in the work switching device 36, the operation signal of the auto clutch button 25, the The operation signal, whether the cutting processing device 3 has risen above a predetermined height, a detection signal by a height detection sensor 38 constituted by a potentiometer that detects the up-and-down swing angle of the cutting unit frame 3a with respect to the traveling machine body 1 is detected. Each of them is configured to be inputted, and the electric mode of the work switching device 36 is based on the inputted signals. It is configured to control the operation of 35.

[Main routine]
As shown in FIG. 9, when the main routine of the control device 100 is started by turning on the power by a key switch or the like, as shown in step # 1, the speed control mechanism (not shown) is set in an idling state by an initial set, and threshing is performed. The clutch 11 and the reaping clutch 12 are in the disengagement operation state, the grain acceptor 18 is brought into the acting position, the auto clutch button 25 is set in the on state, and the integrated switch 26 and the raking button 27 are set in the disengagement state. .

  In step # 2, control by the traveling control means 101 such as control and display of the engine speed based on the detection signal of the tachometer 51 for detecting the engine speed and the detection signal of the fuel gauge 52 is performed. In step # 3, integration is performed. It is detected whether or not the switch 26 has been turned on. When it is detected that the integrated switch 26 has been turned on, control by the motor control means 102 in step # 4 is started. When it is detected that the integrated switch 26 is not turned on and operated, the process proceeds to step # 5, where it is detected whether or not the key switch has been turned off. When the control is executed and the key switch is turned off, the control by the control device 100 is finished.

[Motor control means]
10 to 14 show the state of motor control by the motor control means 102 in step # 4.
The control of the electric motor 35 by the motor control means 102 is performed as follows.
That is, when the integrated switch 26 is pushed, the motor control means 102 provided as a subroutine is called in a part of the main routine provided in the control device 100. First, as shown in FIG. It is determined whether or not it is in the forward position F. If it is the forward position F, the height detection sensor 38 that detects the height position of the cutting processing device 3 next detects the height of the cutting processing device 3.
If the height of the cutting processing device 3 is equal to or higher than a predetermined height, automatic clutch control described later is performed. If the height is lower than the predetermined height, the potentiometer 37 of the work switching device 36 is used to adjust the cam body. The position is determined (steps # 10, # 11, # 12, and # 19).

  In step # 12, the position of the cam body is operated by the potentiometer 37 so that the threshing clutch 11 and the reaping clutch 12 are operated in the disengaged state, and the culm receiving body 18 is set to the working position, and the reaping and threshing operation is not performed. When it is determined that the position is the non-working position T1, the electric motor 35 is rotationally driven in the normal rotation direction in FIG. 8 (step # 12 and step # 14). And, with the potentiometer 37, the cam body operates the threshing clutch 11 and the reaping clutch 12 together to operate them, and the cedar catching body 18 is set to the release position, where the threshing work is carried out with the machine running. If it is determined that the current position is the work position T3, the rotation drive in the forward rotation direction of the electric motor 35 is stopped (steps # 15 and # 16).

If the potentiometer 37 determines in step # 12 that the position of the cam body is not the non-work position T1, the process proceeds to step # 13.
In step # 13, the position of the cam body is the position where the threshing clutch 11 is engaged, the reaping clutch 12 is operated in the disengaged state, and the pallet catching body 18 is in the operating position to perform the threshing operation with pillows. However, when it is determined that the position is the pillow handling position T2, the position of the cam body is operated so that the threshing clutch 11 and the reaping clutch 12 are turned off, and the cereal receiving body 18 is set to the working position. Similarly to the case where it is determined that the position is T1, the electric motor 35 is rotationally driven in the normal rotation direction in FIG. 8 (step # 12, step # 13, and step # 14). When the potentiometer 37 determines that the cam body is at the work position T3 in which the threshing clutch 11 and the reaping clutch 12 are operated together to bring the culm receiving body 18 into the release position, the electric motor 35 is operated. The rotation drive in the forward rotation direction is stopped (step # 15 and step # 16).
If it is determined in step # 13 that the position of the cam body is not the pillow handling position T2, the position of the cam body is in the state where the threshing clutch 11 and the reaping clutch 12 are included, Since 18 is the work position T3 in the release position, the state is maintained as it is.

If it is determined in step # 10 that the main transmission lever 21 is in the forward position F and not in the forward position F (reverse position R or neutral position N), as shown in step # 20 Next, it is determined whether or not the main transmission lever 21 is in the neutral position N. If it is determined that the main transmission lever 21 is at the neutral position N, the height detection sensor 38 that detects the height position of the cutting processing device 3 next detects the height of the cutting processing device 3 (step #). 20, # 21).
If the height of the cutting processing device 3 is equal to or higher than a predetermined height, automatic clutch control described later is performed. If the height is lower than the predetermined height, the potentiometer 37 of the work switching device 36 is used to adjust the cam body. The position is determined (steps # 21, # 22, and # 29).

In step # 22, the position of the cam body is operated by the potentiometer 37 so that the threshing clutch 11 and the reaping clutch 12 are turned off, and the cereal receiving body 18 is set to the operating position, and the reaping and threshing operation is not performed. If it is determined that the position is the non-working position T1, it is next detected whether or not the scraping button 27 has been pressed and entered (steps # 22 and # 23).
When it is detected that the scraping button 27 has been operated, the electric motor 35 is rotationally driven in the forward direction in FIG. 8, and the potentiometer 37 causes the cam body to operate the threshing clutch 11 and the reaping clutch 12 together. When it is determined that the work position T3 is the position at which the grain acceptor 18 is set to the release position, the rotation drive in the normal rotation direction in the electric motor 35 is stopped (steps # 23, # 24, # 26). And # 28).
When it is detected that the scraping button 27 is not engaged and operated, the electric motor 35 is rotationally driven in the normal rotation direction in FIG. 8, and the threshing clutch 11 is engaged by the potentiometer 37, and the reaping clutch In the electric motor 35 at a position determined to be the pillow handling position T2 where 12 is operated in the cutting state and the grain culm receiving body 18 is in the working position and is the position where the pillow handling threshing operation is performed. The rotation drive in the forward rotation direction is stopped (steps # 23, # 25, # 27, and # 28).

If the potentiometer 37 determines in step # 22 that the position of the cam body is not the non-working position T1, then the position of the cam body is entered by the potentiometer 37 and the threshing clutch 11 is engaged. It is determined whether or not it is the pillow handling position T2 that is the position operated in the cutting state (steps # 22 and # 30).
When it is determined that the position of the cam body is the pillow handling position T2, it is detected whether or not the raking button 27 has been pressed and operated, and the raking button 27 has been operated. And the electric motor 35 is driven in the forward rotation direction in FIG. Then, the potentiometer 37 causes the cam body to enter the threshing clutch 11 and the reaping clutch 12 into the engaged state and reach the working position T3 which is the position where the culm receiving body 18 is in the release position. The rotational drive in the rolling direction is stopped (steps # 31, # 32, # 33, and # 34).
If the scraping button 27 is not turned on and operated, the electric motor 35 is not driven and remains in the stopped state (steps # 31 and # 34).

If the potentiometer 37 determines in step # 30 that the position of the cam body is not the pillow handling position T2, it is next detected whether or not the scraping button 27 has been pressed and operated (step S30). # 30, # 35).
The position of the cam body at this time is the working position T3 where the threshing clutch 11 and the reaping clutch 12 are jointly operated and the pallet catching body 18 is the release position. When operated, the state can be maintained as it is, so the electric motor 35 is not driven and remains in the stopped state (steps # 35 and # 38).
If it is determined that the scraping button 27 has not been turned on, the electric motor 35 is driven in the reverse direction in FIG. 8, and the threshing clutch 11 is turned on by the potentiometer 37, and the cutting clutch 12 is turned off. In the reverse direction of the electric motor 35 at the position that is determined to be the pillow handling position T2 that is operated to the state and that is where the grain handling body 18 is in the working position and is the position where the pillow handling and threshing work is performed. The rotational drive is stopped (steps # 35, # 36, # 37, and # 38).

In step # 20, it is determined whether or not the main transmission lever 21 is in the neutral position N. If it is determined that the main transmission lever 21 is not in the neutral position N (reverse drive position R), as shown in step # 40, the operation is switched. By the potentiometer 37 of the device 36, the position of the cam body is operated so that the threshing clutch 11 and the reaping clutch 12 are in the disengaged state, and the culm receiving body 18 is in the working position, and the reaping operation is not performed. It is determined whether or not the position is T1 (steps # 20 and # 40).
Next, when it is determined that the position is the non-working position T1, the electric motor 35 is rotationally driven in the forward rotation direction in FIG. 8, and the potentiometer 37 causes the cam body to enter the threshing clutch 11 and the cutting clutch 12 to The forward rotation of the electric motor 35 at a position determined to be the pillow handling position T2, which is the position where the pallet handling body 18 is in the operation position and is the position where the pillow handling threshing operation is performed. Direction rotation drive is stopped (steps # 40, # 41, # 42, and # 43).

When it is determined in step # 40 that the position is not the non-working position T1, the potentiometer 37 causes the cam body to operate the threshing clutch 11 and the reaping clutch 12 together to bring the culm receiving body 18 into the release position. It is determined whether or not the work position is the work position T3 (steps # 40 and # 44).
When it is determined that the position of the cam body is the work position T3, the electric motor 35 is rotationally driven in the reverse direction in FIG. 8, and the threshing clutch 11 is engaged by the potentiometer 37 and the reaping clutch 12 is engaged. The reverse rotation direction of the electric motor 35 at a position determined to be the pillow handling position T2 that is operated in the cutting state and is the position where the grain handling threshing work 18 is in the working position. Is stopped (steps # 44, # 45, # 46, and # 43).
When it is determined that the position of the cam body is not the work position T3, the position of the cam body at this time is such that the threshing clutch 11 is engaged, the reaping clutch 12 is operated to the disengaged state, and the culm receiving body 18 Since it is the pillow handling position T2 in the operating position, it is only necessary to maintain the state as it is, so the electric motor 35 is not driven and remains in the stopped state (steps # 44 and # 43).

After the stop operation of the electric motor 35 in Step # 16, Step # 28, Step # 34, Step # 38, Step # 43 and after the auto clutch control in Step # 19, Step # 29 is performed, The operation of the raking button 27 is reset (cutting operation).
Next, it is determined whether or not the integration switch 26 is pushed again and a cut signal for stopping the control by the motor control means 102 is output. If the integration switch 26 is not turned off, the motor control means 102 When the control is repeated and it is determined that the integrated switch 26 is turned off, the process returns to the upper main routine (steps # 17 and # 18).

[Auto clutch control]
Next, automatic clutch control, which is a subordinate subroutine, will be described.
As shown in FIG. 14, first, it is determined whether or not the auto clutch button 25 is operated to be disconnected. If it is determined that the auto clutch button 25 is operated, the process exits from the auto clutch control subroutine and returns to the upper routine. (Step # 50).
When it is determined that the auto clutch button 25 has not been turned off, the potentiometer 37 causes the cam body to operate the threshing clutch 11 and the reaping clutch 12 together to bring the cereal receiving body 18 into the release position. It is determined whether or not it is a certain work position T3 (steps # 50 and # 51).

When it is determined that the position of the cam body is the work position T3, it is next detected whether or not the scraping button 27 has been pressed and operated. The position of the cam body at this time is the working position T3 where the threshing clutch 11 and the reaping clutch 12 are jointly operated and the pallet catching body 18 is the release position. When operated, the state may be maintained as it is, so that the electric motor 35 is not driven and remains in a stopped state (steps # 52 and # 55).
If it is determined that the scraping button 27 has not been operated, the electric motor 35 is driven in the reverse direction in FIG. 8, and the threshing clutch 11 is engaged by the potentiometer 37 and the threshing clutch 12 is engaged. Is operated in the cutting state, and the position of the electric motor 35 is determined to be the pillow handling position T2, which is the position where the grain catcher 18 is in the working position and the pillow handling threshing operation is performed. The rotational drive in the reverse direction is stopped (steps # 52, # 53, # 54, and # 55).

If it is determined in step # 51 that the position of the cam body is not the work position T3, then the potentiometer 37 is operated so that the position of the cam body is the threshing clutch 11 and the cutting clutch 12 is disengaged. And it is discriminate | determined whether the grain acceptor 18 is the pillow handling position T2 in an action position (step # 51, # 56).
When it is determined that the position of the cam body is the pillow handling position T2, it is detected whether or not the raking button 27 has been pressed and operated, and the raking button 27 has been operated. Then, the electric motor 35 is driven in the forward rotation direction in FIG. 8, and the potentiometer 37 operates the cam body together with the threshing clutch 11 and the reaping clutch 12 so that the culm receiving body 18 is in the release position. When a certain work position T3 is reached, the rotation drive in the forward direction in the electric motor 35 is stopped (steps # 57, # 58, # 59, and # 60).
If the scraping button 27 is not turned on, the state can be maintained as it is, and the electric motor 35 is not driven and remains in the stopped state (steps # 57 and # 60). In this state, the cam body is located at the pillow handling position T2.

If it is determined in step # 56 that the position of the cam body is not the pillow handling position T2, then it is detected whether or not the scraping button 27 has been pressed and operated. When operated, the electric motor 35 is driven in the forward rotation direction in FIG. 8, and the cam body operates the threshing clutch 11 and the mowing clutch 12 together with the potentiometer 37, and the cedar catching body 18 is released. When the work position T3 is reached, the electric motor 35 stops rotating in the forward rotation direction (steps # 61, # 58, # 59, and # 60).
If the scraping button 27 is not turned on, the state can be maintained as it is, and the electric motor 35 is not driven and remains in the stopped state (steps # 61 and # 60). In this state, the cam body is located at the non-working position T1.

Since the control is performed as described above, the operation of the scraping button 27 is performed because the cam body is automatically operated to the work position T3 when the integration switch 26 is turned on when the main transmission lever 21 is in the forward movement position F. In the state in which the cutting operation is being performed in the airframe traveling state, it is meaningless to press the scraping button 27, so the turning operation of the scraping button 27 is not detected.
Even when the main shift lever 21 is in the forward movement position F and the integrated switch 26 is turned on and operated, the cutting processing device 3 is raised and the automatic clutch control is activated. The cutting clutch 12 is turned on in accordance with the turning operation.
When the main switch lever 21 is in the neutral position N in the state in which the integrated switch 26 is turned on, it is controlled so that the cutting clutch 12 is turned on when the scraping button 27 is turned on. The When the main transmission lever 21 is in the reverse drive position R, the cutting operation itself is not performed, and therefore the turning operation of the scraping button 27 is not detected even if the scraping button 27 is pressed.

[Others]
FIG. 21 shows an example of an operation mode by the combine.
Normally, the scraping button 26 is turned on when the traveling machine body 1 is stopped, so that the cutting clutch 12 is turned on so that the cutting and threshing work can be performed while the machine body is stopped. The following usage is also possible.
As shown in FIG. 21, when the combine harvests the rice near the end of the field while descending the inclined surface from the heel side, when the harvesting processing device 3 is raised relative to the traveling machine body 1, the automatic clutch control is performed. By working, the cutting clutch 12 is turned off. At this time, the cutting and threshing operation can be continued by operating the scraping button 27.

[Other Embodiment 1]
The arrangement relationship between the main transmission lever 21 as a traveling transmission lever around the control seat 20, the steering lever 22 as a steering operation tool, and the raking button 27 is not limited to the structure described in the embodiment. It can also be configured as follows.
As shown in FIG. 15, the control unit panel 30 includes a side panel 31 positioned on the lateral side of the control seat 20 and a front panel 32 positioned on the front side of the control seat 20.
A main transmission lever 21 is provided at a position on the side panel 31 that is easy for the operator who is seated on the control seat 20 to grip, and a steering lever 22 is provided at the right end of the front panel 32.
The scraping button 27 is arranged on the front side of the main transmission lever 21 on the side panel 31 instead of on the front panel 32 as in the above-described embodiment.

[Second embodiment]
The arrangement relationship between the main transmission lever 21 as a traveling transmission lever around the control seat 20, the steering handle 29 as a steering operation tool, and the raking button 27 can be configured as follows.
As shown in FIG. 16, the steering unit panel 30 includes a side panel 31 positioned laterally of the control seat 20, and the steering unit 20 is erected on the front side of the control seat 20 from the driving unit floor 2 a side. A handle 29 is provided.
With this structure, the main speed change lever 21 is arranged on the side panel 31 at a position where the operator who is seated on the control seat 20 can easily grasp, and the scraping button 27 is located on the side panel 31 from the main speed change lever 21. Is also deployed on the front side.

[3 of another embodiment]
The arrangement relationship between the main transmission lever 21 as a traveling transmission lever around the control seat 20, the steering handle 29 as a steering operation tool, and the raking button 27 can be configured as follows.
As shown in FIG. 17, as the control unit panel 30, a side panel 31 positioned on the lateral side of the control seat 20, and a portion extending forward from the side panel 31 to the front side of the control seat 20. A steering wheel 29 is provided on the right side of the short front panel 32 and is erected from the driving unit floor 2a side.
With this structure, the main speed change lever 21 is arranged on the side panel 31 at a position where the operator sitting on the control seat 20 can easily grasp, and the scraping button 27 is closer to the side panel 31 than the steering handle 29 is. On a short front panel 32 located at

[4 of another embodiment]
The arrangement relationship between the main transmission lever 21 as a traveling transmission lever around the control seat 20, the steering handle 29 as a steering operation tool, and the raking button 27 can be configured as follows.
As shown in FIG. 18, a side panel 31 positioned laterally of the control seat 20 is provided as the control section panel 30, and the steering is erected on the front side of the control seat 20 from the driving section floor 2 a side. A handle 29 is provided, and a partial front panel 32 is provided on the left and right sides of the handle post portion of the steering handle 29.
With this structure, the main transmission lever 21 is provided on the side panel 31 at a position where the operator who is seated on the control seat 20 can easily grasp, and the scraping button 27 is located closer to the side panel 31 than the steering handle 29. Is provided on the front panel 32.
At this time, it is desirable that the location where the scraping button 27 is provided on the front panel 32 is a position that is disengaged from the outer peripheral edge of the steering handle 29 toward the side panel 31.

[5 of another embodiment]
The arrangement relationship between the main transmission lever 21 as a traveling transmission lever around the control seat 20, the steering handle 29 as a steering operation tool, and the raking button 27 can be configured as follows.
As shown in FIG. 19, a side panel 31 positioned laterally of the control seat 20 is provided as the control unit panel 30, and the steering is erected on the front side of the control seat 20 from the driving unit floor 2a side. A handle 29 is provided.
With this structure, the main transmission lever 21 is provided on the side panel 31 at a position where the operator who is seated on the control seat 20 can easily grasp, and the scraping button 27 is provided on the handle shaft center of the steering handle 29. ing.
Therefore, even if the steering handle 29 is turned, the position of the scraping button 27 does not change. As a result, for example, while the steering handle 29 is gripped with the left hand, an operation such as pushing the scraping button 27 on the handle shaft from the upper side of the steering handle 29 with the right hand can be easily performed.

[6 of another embodiment]
The arrangement relationship between the main transmission lever 21 as a traveling transmission lever around the control seat 20, the steering handle 29 as a steering operation tool, and the raking button 27 can be configured as follows.
As shown in FIG. 20, a side panel 31 positioned laterally of the control seat 20 is provided as the control section panel 30, and the steering is erected on the front side of the control seat 20 from the driving section floor 2a side. A handle 29 is provided.
With this structure, the main transmission lever 21 is provided on the side panel 31 at a position where the operator who is seated on the control seat 20 can easily grasp, and the scraping button 27 is provided on the wheel portion of the steering handle 29. .
In this case, when the steering handle 29 is turned, the position of the scraping button 27 changes, but the position of the scraping button 27 is set close to a position on the wheel that is easy for the operator to grip when the traveling body 1 travels straight. By doing so, it becomes possible for the operator to operate with the fingers while holding the steering handle 29.

[7 of another embodiment]
As the operation tool for the scraping command, as shown in each of the above-described embodiments, a push-on / push-off type push button switch that is alternately switched on / off each time one-touch push operation is performed. Appropriate structure that can be operated by one-touch operation, such as a button switch that can be switched between two positions in a toggle manner, or a structure in which the switch is turned on and off by touching the touch panel. May be adopted.

  The present invention can be applied not only to the self-removing combine as shown in the embodiment but also to a normal combine.

1L, 1R traveling device 2 boarding operation unit 3 reaping processing device 4 threshing device 7 hydrostatic continuously variable transmission 9 transmission case 11 threshing clutch 12 reaping clutch 16 pump shaft 18 pallet catching body 20 control seat 21 traveling speed change lever (main Shift lever)
22 Steering lever 29 Steering handle 27 Pushing tool for scraping command (scratching button)
30 Control panel 31 Side panel 32 Front panel E Engine

Claims (4)

As the control part panel, it is provided with a side panel positioned on the side of the control seat, and a front panel positioned on the front side of the control seat,
A travel shift lever is provided on the side panel, a steering lever is provided on the front panel,
A cutting clutch is installed in a state where the airframe is stopped on the control unit panel on the front side of the position where the travel shift lever is disposed and closer to the position where the travel shift lever is disposed than the position where the steering lever is disposed. A combine that is provided with a push operation tool for a scraping command for entering operation. As a control panel, it has a side panel located on the side of the control seat,
A travel shift lever is provided on the side panel, a steering handle is provided on the front side of the control seat,
A cutting clutch is installed in a state where the airframe is stopped on the control unit panel on the front side of the location where the travel speed change lever is provided and closer to the location where the travel speed change lever is provided than the location where the steering handle is provided. A combine that is provided with a push operation tool for a scraping command for entering operation. As a control panel, it has a side panel located on the side of the control seat,
A travel shift lever is provided on the side panel, a steering handle is provided on the front side of the control seat,
A combiner in which a push operation tool for a scraping command for operating the cutting clutch to be engaged and operated when the machine body is stopped is disposed on the steering handle. A travel drive system that transmits power from the engine to the travel device is equipped with a hydrostatic continuously variable transmission for travel speed change, and the power input to the pump shaft of the hydrostatic continuously variable transmission travels from the motor shaft. It is configured to transmit to the traveling device via a transmission mechanism in the mission case,
The combine according to any one of claims 1 to 3, wherein the combine is configured to extract driving force to the reaping processing device from a pump shaft of the hydrostatic continuously variable transmission.

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