JP2010268721A - Combined harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combined harvester which enables a user to efficiently manually thresh manually-reaped grain straws, dropped grain straws, or the like scattered in a wide field. <P>SOLUTION: The combined harvester is provided with an automatic reaping clutch control for switching in a reaping clutch through an actuator when a threshing clutch is switched in and a travel machine frame forward travels, and an automatic control for automatically switching out the reaping clutch when a processing head is lifted to a prescribed height or more, and press-operating an auto-clutch switch for switching the auto-clutch control into an execution-possible state or an execution-impossible state for a long time to cancel the automatic reaping clutch control. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention includes a cutting clutch for connecting and disconnecting power transmission to the pre-processing unit, and a pre-processing unit for cutting and transporting cereal husks is mounted on the front of the traveling machine body supported by the crawler traveling device. About the combine.

  In the conventional combine, when the cutting operation is performed to the edge of the field and the machine is turned, the pre-processing unit (cutting unit) that harvests and conveys the culm rises above the set height, and the pre-processing unit Provided with a control means for automatically cutting and operating the cutting clutch for power connection / disconnection to the pre-processing unit when a set time elapses after the cereal presence / absence sensor provided in the reaping cereal conveyance system detects the absence of cereal. At the same time, it has been proposed to provide an automatic transmission control means for detecting that the preprocessing unit has risen to the set height and switching the transmission mechanism provided in the transmission system to the preprocessing unit to the high speed side (for example, Patent Document 1).

  And in this thing, on / off operation of the cutting clutch for the power connection / disconnection to a pre-processing part is performed via the electric cylinder which is an actuator, while the grain cocoon cut by the pre-processing part is threshed and selected. The on / off operation of the threshing clutch for controlling power transmission to the threshing unit is performed via a mechanical linkage mechanism linked to the threshing clutch lever.

Japanese Patent Laying-Open No. 2005-269952 (page 4-6, FIGS. 3 to 6)

  In addition, as described above, after the threshing clutch that controls power transmission to the threshing part is operated by the threshing clutch lever that is a manual operation tool, the pre-processing is performed so that the reaping clutch is automatically operated when the machine is moved forward. There is also a combine that constitutes the control means of the part, and in such a combine, the handling operation is performed in a state where the traveling of the airframe is stopped and the preprocessing part is lowered.

  However, in order to efficiently handle hand-harvested cereal and spilled rice cakes scattered in a wide field, the aircraft is moved at a slow speed with only the threshing unit being driven while the pre-processing unit is stopped. There was a user's request that they would like to be able to perform hand-handling while driving forward.

The present invention was devised for the purpose of solving the above-described problems, and a pre-processing unit for cutting and transporting cereals is mounted on a front part of a traveling machine supported by a crawler traveling device so as to be movable up and down. A harvesting clutch for connecting / disconnecting power transmission to the pre-processing unit, and a threshing clutch for connecting / disconnecting power transmission to a threshing unit for threshing and sorting cereals harvested by the pre-processing unit, the threshing clutch When the vehicle is in the engaged state and the traveling vehicle is moving forward, the cutting clutch is automatically controlled via the actuator, and when the pre-processing unit is raised above a predetermined height, the cutting is performed. An auto clutch control is provided to automatically disengage the clutch, and an auto clutch switch that switches the auto clutch control to an executable state or an inexecutable state is provided. By manipulating, and the first, characterized in that it is arranged to release the reaper clutch automatic control.
A second feature is that an indicator indicating the standby state of the automatic cutting clutch control and an indicator indicating the switching state of the automatic clutch control are provided in the vicinity of the auto clutch switch.

According to the first aspect of the present invention, when the threshing clutch is in the engaged state and the traveling machine body is traveling forward, the reaping clutch automatic control for setting the reaping clutch in the engaged state via the actuator, and the preprocessing unit at a predetermined height. By providing an auto clutch control that automatically turns off the mowing clutch when raised to the above, and by long-pressing an auto clutch switch that switches the auto clutch control to an executable state or an inexecutable state, It is configured to release the automatic mowing clutch control.For example, when you want to perform hand-working operations such as hand-grown cereal grains and spilled grains scattered in a wide field, press and hold the auto clutch switch. The mowing clutch automatic control is released and the mowing clutch is disengaged, thereby stopping the pretreatment section and driving only the threshing section It is possible to advance travel machine body at very low speed in a state in which, consisting of work threshing the hand to efficiently and safely performed so. Further, since the auto clutch switch for switching the auto clutch control to the executable state or the inexecutable state is also used as the related cutting clutch automatic control releasing means, it is not necessary to provide a special operation means, so that the cost can be reduced.
The invention according to claim 2 is provided with an indicator indicating the standby state of the automatic harvesting clutch control and an indicator indicating the switching state of the automatic clutch control in the vicinity of the auto clutch switch. The display can be clearly seen and the operability is improved.

The perspective view of a combine. The top view of a control part. The elements on larger scale of the A section in FIG. The power transmission diagram of a combine. The block diagram of a control part. A time chart showing the procedure for releasing the automatic clutch control using the auto clutch switch.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  1 is a perspective view of a combine, and FIG. 2 is a plan view of a control unit. The combine 1 includes a traveling machine body 3 supported by a pair of left and right crawler traveling devices 2L and 2R which are traveling units. The step 5 constituting the control unit 4 of the combine 1 and the driver's seat 6 on which the operator sits are provided on the right side of the front part of the traveling machine body 3, and the steering and details of the traveling machine body 3 are provided on the front side of the step 5. A control tower 9 having a multi-steering lever 8 for raising and lowering a pre-processing unit 7 to be described later is erected. The multi-steering lever 8 protrudes from the right side of the top panel 11 that covers the top of the control tower 9, and on the left side of the top panel 11, a meter panel 12 for displaying various information necessary for the cutting operation (operation) is provided. Decorated.

  On the other hand, on the left side of the front part of the traveling machine body 3, a pre-processing unit 7 for cutting and transporting cereals is laid up and down freely, and the pre-processing unit 7 cuts behind the pre-processing unit 7. A threshing unit 13 for threshing the cereal and selecting the threshed grain and a post-processing unit (not shown) for discharging the waste after threshing by the threshing unit 13 to the outside of the machine are provided.

  Further, behind the driver's seat 6, there is provided a grain tank 14 for temporarily storing the grains selected by the threshing unit 13, and the grains temporarily stored in the grain tank 14 are Further, it can be discharged out of the machine from the discharge port 16a of the grain discharge auger 16 which can freely move up and down through the vertical conveying pipe 15.

  The side panel 17 on the left side of the driver's seat 6 is provided with a plurality of operation levers necessary for the operation of the combine 1, such as a main transmission lever 18, an auxiliary transmission lever 19, and a threshing (work machine) clutch lever 21. 3, a cutting height position control switch (dial) 22 for setting the cutting height of the pre-processing unit 7, a state in which automatic direction control can be executed, or execution, as shown in a partially enlarged view (part A in FIG. 2) Automatic direction switch 23 for switching to an impossible state, automatic depth switch 24 for switching automatic depth control to an executable state or an inexecutable state, and an automatic clutch control, which will be described later, to an executable state or an inoperable state. Switches such as the auto clutch switch 25 are disposed, and the combine control unit 4 is formed by the configuration described above.

  FIG. 4 is a power transmission diagram of the combine 1, and three output pulleys 32, 33, and 34 are fixedly attached to the output shaft 31 a of the engine 31. Power from the engine 31 is belt-transmitted to the grain discharge spiral 36 provided at the bottom of the grain tank 14 via the discharge clutch 35. The power from the engine 31 is belt-transmitted from the output pulley 33 to a hydrostatic continuously variable transmission (traveling HST) 38 that constitutes the main transmission of the transmission 37. Further, from the output pulley 34, the power from the engine 31 is branched through a transmission shaft 41 provided on the lower transmission of the threshing (working machine) clutch 39, and a handling cylinder 42 and a waste conveying device constituting the threshing unit 13. 43 is transmitted to the belt, while the second spiral 44, the first spiral 45, the oscillating flow plate 46, the tang fan 47, the dust exhaust fan 48, and the cutter device 49 constituting the post-processing unit are transmitted to the belt.

  Further, as described above, the power from the engine 31 that is transmitted to the tang fan 47 by the belt is transmitted to the threshing feed chain 52 via the transmission 51, while the pulling clutch 53 forms the pretreatment unit 7. It is comprised so that it may be transmitted to the apparatus 54, the reaping apparatus 55, the picking-up conveying apparatus 56, and the grain haul conveying apparatus 57, and the motive power of the engine 31 is branched and transmitted to the traveling system and the working system.

  The combine 1 includes an ECU (electronic control unit) 61 configured using a microcomputer (including a CPU, a ROM, a RAM, and the like) as shown in the block diagram of FIG. On the input side of the ECU 61, an ignition switch 62 that is a power switch of the combine 1, a main transmission lever potentiometer 63 that detects the operation position of the main transmission lever 18, and an elevation operation of the preprocessing unit 7 by the multi-steering lever 8 are detected. Pretreatment lifting operation potentiometer 64, pretreatment lift potentiometer 65 for detecting the elevation position of the pretreatment unit 7, threshing (working machine) clutch lever switch 66 for detecting the engagement state of the threshing clutch 39 by the threshing clutch lever 21, front When the processing unit 7 is raised to a predetermined height or higher, the auto clutch switch 25 for automatically switching the mowing clutch 53 to the disengageable state or the inoperable state is switched to a predetermined input interface circuit. Connected through.

  On the other hand, on the output side of the ECU 61, a preprocessing incorporated in a directional control valve for controlling a reaping clutch motor 67, which is an electric actuator for turning on and off the reaping clutch 53, and a lift cylinder (not shown) that raises or lowers the preprocessing portion 7. Ascending solenoid valve 68 and pre-processing descending solenoid valve 69, as shown in FIG. 3, an auto clutch LED (indicator) 25a indicating the switching state of auto clutch control provided in the vicinity of the auto clutch switch 25, and standby for automatic cutting clutch control A cutting clutch standby LED (indicator) 25b indicating the state is connected via a predetermined output interface circuit.

  FIG. 6 is a time chart showing a control procedure by the ECU 61 when the auto clutch switch 25 for switching the auto clutch control to the executable state or the inexecutable state is also used as a cutting clutch automatic control releasing means. This will be described based on a time chart.

  First, when the ignition switch 62 which is the power switch of the combine 1 is turned on, the cutting clutch standby LED 25b indicating the standby state of the cutting clutch automatic control is turned on.

  Next, after the threshing clutch lever 21 is operated and the threshing clutch lever switch 66 is turned on, that is, the threshing clutch 39 is turned on, the main transmission lever potentiometer 63 that detects the operation position of the main transmission lever 18 is used. When forward running is detected, automatic harvesting clutch control is performed in which the harvesting clutch 53 is engaged via the harvesting clutch motor 67 that is an electric actuator. Next, the multi-steering lever 8 is operated to lower the pre-processing unit 7 in the non-working position to the cutting height (including raising / lowering adjustment), so that the cutting operation can be performed.

  When the desired cutting operation is completed, the multi-steer lever 8 is operated to raise the pre-processing unit 7 at the cutting height to the non-working position, and then the forward traveling of the traveling machine body 3 is stopped, whereby the electric actuator The reaping clutch automatic control for activating the reaping clutch 53 is executed via the reaping clutch motor 67.

  Thereafter, when the auto clutch switch 25 is pushed and operated for t time to enter the auto clutch control executable state, the auto clutch LED 25a is turned on. After the forward movement of the airframe 3 is started in a state where the automatic clutch control can be performed, when the pre-processing unit 7 in the non-working position is lowered by the multi steering lever 8 toward the cutting height, the cutting clutch which is an electric actuator The mowing clutch 53 is engaged via the motor 67 and the mowing operation is started.

  Then, when the desired mowing operation is finished and the forward traveling of the traveling machine body 3 is stopped, the mowing clutch automatic control in which the mowing clutch 53 is turned off is executed via the mowing clutch motor 67 which is an electric actuator. Thereafter, the multi-steer lever 8 raises the preprocessing unit 7 at the cutting height to the non-working position.

  Next, when the threshing clutch lever 21 is operated to turn off the threshing clutch lever switch 66, that is, the threshing clutch 39 is turned off, and then the ignition switch 62 is turned off, the auto clutch LED 25a and the cutting clutch standby LED 25b are turned off. To do.

  When the ignition switch 62 is turned on again, the auto clutch LED 25a and the cutting clutch standby LED 25b return to the previous state stored in the ECU 61, that is, both the LEDs 25a and 25b are lit.

  Next, when the threshing clutch lever 21 is operated and the threshing clutch lever switch 66 is turned on, that is, the threshing clutch 39 is turned on, when the auto clutch switch 25 is pressed for a long time T (t <T), the auto clutch LED 25a. In addition, the cutting clutch standby LED 25b is turned off, the above-described cutting clutch automatic control is released, and the cutting clutch 53 is in a disconnected state, whereby the driving of the preprocessing unit 7 is stopped and only the threshing unit 13 is driven. Can be moved forward at a low speed, and the handling operation can be performed efficiently and safely.

  After the handling operation as described above, the threshing clutch lever 21 is operated to turn off the threshing clutch lever switch 66, that is, the threshing clutch 39 is turned off, and the ignition switch 62 is turned off. When the ignition switch 62 is turned on again, and the auto clutch switch 25 is turned on by depressing the auto clutch switch 25 for t hours, the cutting clutch standby LED 25b indicating the standby state of the cutting clutch automatic control is turned on. .

According to the time chart showing the configuration of the ECU 61 and the control procedure performed by the ECU 61 described above, when the threshing clutch 39 is engaged and the traveling machine body 3 is traveling forward, the actuator (cutting clutch motor) 67 is used. There is provided automatic cutting clutch control for setting the cutting clutch 53 in an engaged state, and automatic clutch control for automatically turning off the cutting clutch 53 when the pre-processing unit 7 is raised to a predetermined height or higher. The automatic clutch switch 25 that switches the clutch control to an executable state or an inexecutable state is pressed and operated to release the automatic clutch control. For example, hand-cut grains scattered in a wide field When you want to perform handling work such as firewood and spillage, press and hold the auto clutch switch 25. Then, the mowing clutch automatic control is released and the mowing clutch 53 is in a disengaged state, whereby the driving of the preprocessing unit 7 is stopped and only the threshing unit 13 is driven, so that the aircraft can travel forward at a slow speed. Thus, the handling operation can be performed efficiently and safely. Further, since the auto clutch switch 25 for switching the auto clutch control to the executable state or the inexecutable state is also used as the related cutting clutch automatic control releasing means, it is not necessary to provide a special operation means, so that the cost can be reduced. .
In addition, an indicator (cutting clutch standby LED) 25b indicating a standby state of the cutting clutch automatic control and an indicator (auto clutch LED) 25a indicating a switching state of the automatic clutch control are provided in the vicinity of the auto clutch switch 25. The state display according to the function of the clutch switch 25 can be clearly recognized and the operability is improved.

2L crawler travel device (left side)
2R crawler travel device (right side)
3 traveling machine body 7 pre-processing part 13 threshing part 25 auto clutch switch 25a indicator (auto clutch LED)
25b Indicator (reaching clutch standby LED)
39 Threshing clutch 53 Mowing clutch 67 Actuator

Claims (2)

  A pre-processing unit (7) for cutting and transporting cereal husks is installed on the front of the traveling machine body (3) supported by the crawler traveling device (2L, 2R) so as to be movable up and down. A mowing clutch (53) for connecting / disconnecting power transmission and a threshing clutch (39) for connecting / disconnecting power transmission to the threshing section (13) for threshing and sorting the rice cake harvested by the pretreatment section (7) are provided. In the combine, when the threshing clutch (39) is in the engaged state and the traveling machine body (3) is traveling forward, the reaping clutch automatic control for bringing the reaping clutch (53) into the engaged state via the actuator (67); When the pre-processing unit (7) is raised to a predetermined height or higher, an auto clutch control is provided to automatically disengage the harvesting clutch (53), and the auto clutch control can be executed or executed. Impossible By long press operation of automatic clutch switch (25) for switching the state, Combine, characterized in that is arranged to release the reaper clutch automatic control.   The combine according to claim 1, wherein an indicator (25b) indicating a standby state of the automatic cutting clutch control and an indicator (25a) indicating a switching state of the automatic clutch control are provided in the vicinity of the auto clutch switch (25).

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