JP2020068663A - Combine - Google Patents

Abstract

To provide a combine capable of discharging grains in a grain tank even when failure occurs on an electrical system.SOLUTION: A combine 1 comprises a clutch operation device 33 for turning on/off a grain discharge clutch device 28 through an inner wire 32. The clutch operation device 33 includes: an electrical actuator 36 which is connected to one end part of the inner wire 32 through an eyeend 34 and a spring 35, and turns on the grain discharge clutch device 28 through a pulling operation of the inner wire 32 on the basis of driving of a motor; and an emergency discharge operation lever 50 for manually turning on the grain discharge clutch device 28 instead of the electrical actuator 36. The emergency discharge operation lever 50 has an action part 50b for turning on the grain discharge clutch device 28 on the basis of the pulling operation of the eyeend 34 according to an operation of an operation part 50a.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a combine equipped with a clutch operating device for turning on / off a grain discharging clutch device.

  A combine equipped with a clutch operating device for electrically turning on / off the grain discharging clutch device is known. In this type of combine, since the grain discharge switch is provided in the control unit and the clutch operating device is operated according to the operation of the grain discharge switch, compared to the combine that manually turns on / off the grain discharge clutch device. The operability of the grain discharge clutch device can be improved.

JP, 2011-38588, A

  However, in this type of combine, if a malfunction occurs in the electric system of the clutch operating device, it becomes difficult to operate the grain discharging clutch device, and there is a possibility that the grain in the grain tank cannot be discharged.

The present invention has been made in view of the above circumstances in order to solve these problems, and the invention of claim 1 is a control section on which an operator rides and a rear section of the control section. A grain tank for storing the harvested grains, a grain transport device for discharging and transporting the grains in the grain tank, and a power transmission for transmitting power to the grain transport device via a belt transmission mechanism. Mechanism, a belt tension type grain discharging clutch device for turning on / off the power transmission by the belt transmission mechanism, and a grain discharging clutch arranged between the control section and the grain tank, through an inner wire. A clutch operating device for turning on / off the device, wherein the clutch operating device is connected to one end of the inner wire via an eye end and an interchange mechanism, An electric actuator that turns on the grain discharge clutch device by a pulling operation of the inner wire based on the drive of the inner wire, an outer receiver that fixes one end of an outer wire through which the inner wire is inserted, and the electric actuator instead of the electric actuator. An emergency discharge operation tool for manually entering and operating the grain discharge clutch device, wherein the emergency discharge operation tool is arranged between the manually operated operation unit, the electric actuator and the outer receiver, and And an action unit that turns on the grain discharge clutch device based on the pulling operation of the eye end according to the operation of the operation unit.
Further, the invention of claim 2 is the combine according to claim 1, wherein the clutch operating device is arranged between the control section and the grain tank and above the grain discharging clutch device. The electric actuator is connected to the upper end portion of the inner wire via the eye end, and the grain discharge clutch device is turned on by pulling up the inner wire based on motor drive, and the outer receiver is the outer wire of the outer wire. The upper end portion is fixed below the electric actuator, and the emergency ejection operation tool is an L-shaped emergency ejection operation lever that can be pivotally operated in the left-right direction. The emergency ejection operation lever extends in the vertical direction. The operation unit that is operated in the left-right direction, and the grain along the left-right direction by lifting the eye end according to the operation of the operation unit And the working section to enter the clutch device output, characterized in that it comprises a.
The invention according to claim 3 is the combine according to claim 2, wherein the acting portion has a slit through which the inner wire is inserted in a vertical direction, and a front-rear width of the slit is a line of the inner wire. It is characterized in that it is larger than the diameter and smaller than the front-rear width of the eye end.
The invention according to claim 4 is the combine according to claim 3, wherein the action portion positions a contact position with the eye end when lifting the eye end according to an operation of the operation portion. It is characterized by having a positioning groove portion for

According to the invention of claim 1, even if a malfunction occurs in the electric system of the clutch operating device, the grain discharging clutch device is turned on and operated based on the operation of the emergency discharging operation tool, whereby the grain in the grain tank is operated. Can be discharged. Further, since the emergency discharging operation tool turns on the grain discharging clutch device based on the pulling operation of the eye end, the emergency discharging operation can be realized with a simple configuration.
Further, according to the invention of claim 2, it is possible to configure a clutch operating device capable of performing an emergency discharge operation in a limited space between the control unit and the grain tank.
Further, according to the invention of claim 3, the action portion of the emergency ejection operation lever has a slit through which the inner wire is inserted in the vertical direction, and the front-back width of the slit is larger than the wire diameter of the inner wire and Since the width is smaller than the front-rear width of the end, the eye-end lifting operation can be performed by the emergency ejection operation lever without hindering the up-down operation of the inner wire by the electric actuator.
Further, according to the invention of claim 4, the action portion of the emergency ejection operation lever has the positioning groove portion which positions the contact position with the eye end when the eye end is lifted in response to the operation of the operation portion. Not only can the end be reliably lifted, but the operability of the emergency ejection operation lever can be improved.

FIG. 3 is a right side view of the combine according to the embodiment of the present invention. It is a figure which shows arrangement | positioning of a clutch operating device, (a) is a principal part right side view of a combine, (b) is an essential part top view of a combine, (c) is an essential part perspective view of a combine. It is a front view of a grain tank provided with a clutch operating device. (A) is a front view of the clutch operating device showing a clutch disengaged state, (b) is a front view of the clutch operating device showing a clutch engaged state. It is a perspective view of a clutch operating device and an emergency ejection operating lever. (A) is a perspective view of a main part of the emergency ejection operating lever, (b) is a front view of a main part of the emergency ejection operating lever, and (c) is a left side view of a main part of the emergency ejection operating lever. It is a front view of a clutch operating device showing a clutch engaged state by an emergency ejection operation lever.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In FIG. 1, 1 is a combine, and the combine 1 comprises a pretreatment unit 2 for cutting stems, a threshing unit (not shown) for selecting grains by threshing from the cut stems, and selecting The grain tank 4 for storing the produced grains, the discharge auger 5 (grain transport device) for discharging the grains in the grain tank 4 to the outside of the machine, and the front side of the grain tank 4 are arranged adjacent to each other. The control unit 6 and the crawler type traveling unit 7 are provided.

  In the control unit 6 of the present embodiment, the space in which the seat 6a and various operating devices are arranged is covered with a cabin 8. As shown in FIGS. 1 and 2, the cabin 8 includes a cabin frame 9 that forms a skeleton thereof, a ceiling 10 that covers the upper portion of the control unit 6, a glass 11 that covers the periphery of the control unit 6, and an entrance / exit 12. An opening / closing door 13 for opening and closing the vehicle and a rear door 15 for opening and closing the rear window 14 are provided. As shown in FIG. 2C, an opening / closing lever 16 is provided on the rear door 15, and the rear door 15 is opened / closed in response to an operation of the opening / closing lever 16.

  In the lower part of the grain tank 4, a horizontal spiral (grain transportation device) (not shown) facing forward and backward is installed, and the grains in the grain tank 4 are discharged from the rear part of the tank in accordance with the rotational driving of the horizontal spiral. To be done. A vertical pipe 17 of the discharge auger 5 is pivotally connected to the rear portion of the tank, and a horizontal pipe 18 of the discharge auger 5 is vertically movable to the upper end of the vertical pipe 17. The vertical pipes 17 and the horizontal pipes 18 are equipped with a spiral carrier (not shown) equivalent to a horizontal spiral, and these spiral carriers are rotationally driven in a series with the horizontal spiral, so that the grain The grain in the tank 4 is conveyed to the tip portion (the discharge port 19) of the horizontal pipe 18 via the vertical pipe 17.

  An engine (not shown) that supplies power to each part of the combine 1 is mounted below the control unit 6, and the right side thereof is covered with an engine side cover 20. As shown in FIG. 3, engine power is input to the horizontal spiral in the grain tank 4 via a power transmission mechanism 23 including a relay transmission case 21 and a belt transmission mechanism 22. The belt transmission mechanism 22 includes an engine-side pulley 24 provided on the relay transmission case 21, a lateral-helix pulley 26 provided on a lateral-helix drive shaft 25, and a transmission belt 27 wound between the pulleys 24, 26. , Is provided.

  The belt transmission mechanism 22 is provided with a belt tension type grain discharge clutch device 28 for turning on / off the power transmission based on the tension / looseness of the transmission belt 27. The grain discharge clutch device 28 includes a tension arm 30 that rotates about a rotation fulcrum 29 as a fulcrum, and a tension pulley 31 that is rotatably provided on the tension arm 30. When the tension pulley 31 presses the transmission belt 27 in response to the rotation, the transmission belt 27 is tensioned and the power transmission by the belt transmission mechanism 22 is turned on. The tension arm 30 is biased downward by a spring 30a, and when the grain discharge clutch device 28 is operated to be operated, the tension arm 30 is pulled upward against the biasing force of the spring 30a. It

  As shown in FIGS. 1 and 2, a gap S having a predetermined width W1 is provided between the control unit 6 (cabin 8) and the grain tank 4, and below the gap S, the belt S is provided. While the transmission mechanism 22 and the grain discharge clutch device 28 are arranged, a clutch operating device 33 for performing an on / off operation of the grain discharge clutch device 28 via the inner wire 32 is arranged above the gap S.

  As shown in FIGS. 3 to 5, the clutch operating device 33 is connected to the upper end portion of the inner wire 32 via an eye end 34 and a spring 35 (interchange mechanism), and is pulled by an operation of the inner wire 32 based on a motor drive. An electric actuator 36 for entering the grain discharge clutch device 28, an outer receiver 38 for fixing an upper end portion of an outer wire 37 through which the inner wire 32 is inserted, and a bracket 39 for supporting the electric actuator 36 and the outer receiver 38 are provided. And is attached to the front part of the grain tank 4.

  The eye end 34 is a connecting member that integrally includes a connecting portion 34a that is connected to the inner wire 32 and an engaging hole 34b that engages with the hook portion 35a of the spring 35. The spring 35 is a tension coil spring and integrally has a coil portion 35b and hook portions 35a provided at both ends thereof.

  The electric actuator 36 includes a motor mounting cover 40 fixed to a bracket 39, a motor 41 with a speed reduction mechanism mounted on the motor mounting cover 40, a motor mounting cover 40 rotatably supported by the motor mounting cover 40, and an output gear 41 a of the motor 41. The gear member 42 that meshes with the gear member 42, and the connecting member 43 that moves up and down according to the rotation of the gear member 42.

  The gear member 42 has an extending portion 42a extending in the outer diameter direction and a pin 42b provided on the extending portion 42a. The pin 42b projects to the front side of the motor mounting cover 40 through an arcuate elongated hole 40a formed in the motor mounting cover 40, and moves along the elongated hole 40a according to the driving of the motor 41. Explaining in detail with reference to FIG. 4, at the time of clutch disengagement for disengaging the grain discharge clutch device 28, as shown in FIG. On the other hand, when the clutch for engaging the grain discharge clutch device 28 is engaged, the pin 42b is positioned at the upper end portion (clutch engagement position) of the elongated hole 40a as shown in FIG. 4B. The motor 41 is driven as described above.

  A limit switch 44 for detecting the clutch disengagement position of the pin 42b is attached to the front side of the motor mounting cover 40, and the motor drive is stopped based on the detection signal of the limit switch 44 during the clutch disengagement operation. In FIG. 3, reference numeral 44a indicates wiring of the limit switch 44, and reference numeral 41b indicates wiring of the motor 41.

  The connecting member 43 has an upper end connected to the pin 42b so as to be rotatable left and right, and a lower end connected to an upper end of the spring 35. Then, the coupling member 43 ascends as the pin 42b moves from the clutch disengaged position of the elongated hole 40a to the clutch engaged position during the clutch engagement operation, and is coupled via the spring 35, the eye end 34, and the inner wire 32. By pulling up the tension arm 30 of the grain discharge clutch device 28 against the biasing force of the spring 30a, the grain discharge clutch device 28 is switched to the on state.

  According to the clutch operating device 33 thus configured, the grain discharging clutch device 28 can be electrically turned on / off according to the operation of the grain discharging operating switch (not shown) arranged in the control section 6. Therefore, it is possible to improve the operability as compared with the case where the grain discharging clutch device 28 is manually turned on / off, but when a malfunction occurs in the electric system of the clutch operating device 33, the grain discharging clutch It may be difficult to enter the device 28, and the grains in the grain tank 4 may not be discharged.

  In order to solve the above problems, the clutch operating device 33 according to the embodiment of the present invention includes an emergency ejection operating lever 50 (emergency ejection operating tool) for manually turning on and operating the grain ejection clutch device 28. Hereinafter, the emergency ejection operation lever 50 will be described with reference to FIGS.

  The emergency discharge operation lever 50 is disposed between the manually operated operation unit 50a and the electric actuator 36 and the outer receiver 38, and discharges the grain based on the pulling operation of the eye end 34 according to the operation of the operation unit 50a. And a working portion 50b for putting the clutch device 28 into the inside. According to such a clutch operating device 33, even if a malfunction occurs in the electric system, the grain discharging clutch device 28 is turned on and off based on the operation of the emergency discharging operation lever 50, whereby the grain in the grain tank 4 is operated. It becomes possible to discharge the grains. Further, since the emergency discharge operation lever 50 turns on the grain discharge clutch device 28 based on the pulling operation of the eye end 34, the emergency discharge operation can be realized with a simple configuration. Further, since the spring 35 serving as a flexible mechanism is provided between the eye end 34 and the electric actuator 36, the pulling operation of the eye end 34 can be smoothly performed.

  More specifically, the emergency ejection operation lever 50 is an L-shaped lever member that can be rotated in the left-right direction with the rotation support point 50c as a fulcrum, and the operation portion 50a extends in the up-down direction and in the left-right direction. Operated. Moreover, the action part 50b raises the eye end 34 along the left-right direction by the upward movement according to the operation of the operation part 50a. With such an emergency ejection operation lever 50, it is possible to configure the clutch operating device 33 capable of emergency ejection operation in the limited space (gap S) between the control unit 6 and the grain tank 4.

  As shown in FIGS. 5 and 6, the action portion 50b has a slit 50d through which the inner wire 32 is inserted in the vertical direction, and the front-rear width W2 of the slit 50d is larger than the wire diameter R of the inner wire 32, and It is smaller than the front-rear width W3 of the connecting portion 34a of the eye end 34. With such a size setting, the operation of lifting the eye end 34 by the emergency ejection operation lever 50 can be performed without obstructing the vertical operation of the inner wire 32 by the electric actuator 36.

  More specifically, the action portion 50b is welded to the first plate portion 50e integral with the operation portion 50a, and the base end side thereof is welded to the first plate portion 50e so as to face the first plate portion 50e with the slit 50d interposed therebetween. The forked second plate portion 50f has a bifurcated shape with the tip side open, and the inner wire 32 is inserted into the slit 50d through the tip side opening.

  A washer 51 disposed between the tip portions of the first plate portion 50e and the second plate portion 50f and a bolt penetrating the first plate portion 50e, the washer 51, and the second plate portion 50f are provided at the tip portion of the action portion 50b. 52 and a nut 53 screwed onto the bolt 52 are provided. According to such an emergency ejection operation lever 50, not only can the bolt 52 and the nut 53 prevent the opening of the slit 50d by tightening the front end portions of the first plate portion 50e and the second plate portion 50f from the front and back. The front and rear width W2 of the slit 50d can be reliably ensured by the washer 51 interposed between the front end portions of the first plate portion 50e and the second plate portion 50f.

  In addition, the action portion 50b has a V-groove-shaped positioning groove portion 50g that positions the contact position with the eye end 34 when the eye end 34 is lifted in accordance with the operation of the operation portion 50a. That is, when the action section 50b lifts the eye end 34 in accordance with the operation of the operation section 50a, the inner wire 32 may move within the range K of the imaginary line shown in FIGS. 6B and 7. However, the contact position between the action portion 50b and the eye end 34 may become unstable, but the action portion 50b of the present embodiment has the positioning groove portion 50g for positioning the contact position with the eye end 34. Not only can the end 34 be reliably lifted, but the operability of the emergency ejection operation lever 50 can be improved.

  In the emergency ejection operation lever 50, the length L1 from the upper end portion (operation position) of the operation portion 50a to the rotation fulcrum 50c is the contact position with the eye end 34 in the action portion 50b (the groove bottom of the positioning groove portion 50g). It is set to be longer than the length L2 from the position) to the rotation fulcrum 50c. According to such an emergency ejection operation lever 50, the operating force of the emergency ejection operation lever 50 is reduced by utilizing the lever principle, and the operability is enhanced.

  Further, in the emergency ejection operation lever 50, the operation portion 50a is arranged along one side portion of the bracket 39 having a vertically long rectangle in a front view, and the action portion 50b is arranged along the lower side portion of the bracket 39. It is arranged. With such an emergency discharge operation lever 50, it is possible to realize the emergency discharge operation function of the grain discharge clutch device 28 while avoiding an increase in the size of the clutch operating device 33.

  Further, as shown in FIG. 5, the emergency ejection operation lever 50 has a bent portion 50h at a vertically intermediate portion of the operation portion 50a. The bent portion 50h separates the upper side of the operating portion 50a from the bracket 39 to avoid interference with the motor mounting cover 40, and brings the lower side of the operating portion 50a and the operating portion 50b close to the bracket 39 to allow the clutch operating device 33 to operate. To avoid large size.

  Further, the clutch operating device 33 of the present embodiment is provided with a lever fixing tool 54 for fixing the emergency ejection operation lever 50 to the initial position (non-emergency ejection operation position). The lever fixing member 54 is composed of, for example, a bolt or a bolt with a knob, and is screwed into the bracket 39 through a fixing hole 50i formed in an intermediate portion in the up-down direction of the operating portion 50a, whereby the emergency ejection operating lever The 50 can be fixed in the initial position. According to such a lever fixing tool 54, it is possible to prevent the emergency discharge operation lever 50 from rattling in the non-emergency discharge operation state and to prevent the grain discharge clutch device 28 from being engaged by an incorrect operation. Further, the lever fixing tool 54 needs to be removed at the time of an emergency discharging operation, but a bolt with a knob can be easily removed without using a tool.

  According to the present embodiment configured as described above, the control unit 6 on which the operator rides, the grain tank 4 arranged behind the control unit 6 and storing the harvested grains, and the inside of the grain tank 4 Horizontal spiral and discharge auger 5 that discharges and conveys grains, power transmission mechanism 23 that transmits power to horizontal spiral and discharge auger 5 via belt transmission mechanism 22, and power transmission by belt transmission mechanism 22 is turned on / off. A belt tension type grain discharging clutch device 28, a clutch operating device 33 arranged between the control unit 6 and the grain tank 4 for turning on / off the grain discharging clutch device 28 via the inner wire 32, The clutch operating device 33 is connected to one end of the inner wire 32 via an eye end 34 and a spring 35, and is operated by a motor drive. An electric actuator 36 that engages the grain discharge clutch device 28 by pulling the wire 32, an outer receiver 38 that fixes one end of an outer wire 37 through which the inner wire 32 is inserted, and a grain discharge instead of the electric actuator 36. An emergency ejection operation lever 50 for manually entering and operating the clutch device 28 is provided. The emergency ejection operation lever 50 is disposed between the manually operated operation unit 50a, the electric actuator 36 and the outer receiver 38, and is operated. Since the operation unit 50b for turning on and off the grain discharge clutch device 28 based on the pulling operation of the eye end 34 according to the operation of the portion 50a is provided, even if a malfunction occurs in the electric system of the clutch operating device 33, the emergency operation is performed. Based on the operation of the discharge operation lever 50, the grain discharge clutch device 28 is turned on and operated, and the grain in the grain tank 4 is changed. It is possible to discharge. Further, since the emergency discharge operation lever 50 turns on the grain discharge clutch device 28 based on the pulling operation of the eye end 34, the emergency discharge operation can be realized with a simple configuration.

  The clutch operating device 33 is arranged between the control unit 6 and the grain tank 4 and above the grain discharging clutch device 28, and the electric actuator 36 is provided on the upper end of the inner wire 32 via the eye end 34. Are connected to each other and the grain discharge clutch device 28 is turned on by pulling up the inner wire 32 based on the motor drive, the outer receiver 38 fixes the upper end portion of the outer wire 37 below the electric actuator 36, and the emergency discharge operation lever 50 , L-shaped that can be rotated in the left-right direction and is operated in the up-down direction and operated in the left-right direction, and the eye end 34 is lifted in the left-right direction in accordance with the operation of the operation part 50a. Therefore, since the action part 50b for turning the grain discharge clutch device 28 into the ON state is provided, the space between the control part 6 and the grain tank 4 is limited. It can constitute an emergency ejection operable clutch operation device 33 in the space.

  Further, the action portion 50b has a slit 50d through which the inner wire 32 is inserted in the up-down direction, and the front-rear width W2 of the slit 50d is larger than the wire diameter R of the inner wire 32 and is larger than the front-rear width W3 of the eye end 34. Since it is small, the operation of lifting the eye end 34 by the emergency ejection operation lever 50 can be performed without obstructing the vertical operation of the inner wire 32 by the electric actuator 36.

  Further, the action portion 50b has the positioning groove portion 50g for positioning the contact position with the eye end 34 when the eye end 34 is raised according to the operation of the operation portion 50a, so that the eye end 34 can be reliably raised. Not only that, the operability of the emergency ejection operation lever 50 can be improved.

1 Combine 2 Pretreatment Section 4 Grain Tank 5 Discharge Auger 6 Control Section 8 Cabin 22 Belt Transmission Mechanism 23 Power Transmission Mechanism 28 Grain Discharge Clutch Device 32 Inner Wire 33 Clutch Operating Device 34 Eye End 35 Spring 36 Electric Actuator 37 Outer Wire 38 Outer Receiver 39 Bracket 40 Motor mounting cover 41 Motor 42 Gear member 43 Connecting member 44 Limit switch 50 Emergency ejection operating lever 50a Operating portion 50b Working portion 50c Rotation fulcrum 50d Slit 50g Positioning groove portion 54 Lever fixing tool

Claims (4)

The control section where the operator gets on,
A grain tank that is arranged behind the control unit and stores harvested grains,
A grain transfer device for discharging and transporting the grains in the grain tank,
A power transmission mechanism that transmits power to the grain transfer device via a belt transmission mechanism,
A belt tension type grain discharge clutch device for turning on / off power transmission by the belt transmission mechanism;
A combiner that is disposed between the control unit and the grain tank, and includes a clutch operating device that turns on and off the grain discharging clutch device via an inner wire,
The clutch operating device,
An electric actuator that is connected to one end of the inner wire via an eye end and an interchange mechanism, and that turns on the grain discharge clutch device by a pulling operation of the inner wire based on a motor drive,
An outer receiver that fixes one end of the outer wire through which the inner wire is inserted,
In place of the electric actuator, an emergency discharge operation tool for manually entering and operating the grain discharge clutch device,
The emergency discharge operation tool is
A manually operated operation unit,
And an action unit that is disposed between the electric actuator and the outer receiver and that turns on the grain discharge clutch device based on a pulling operation of the eye end according to an operation of the operation unit. And combine. The clutch operating device is disposed between the control unit and the grain tank, and above the grain discharging clutch device,
The electric actuator is connected to the upper end of the inner wire via the eye end, and turns on the grain discharge clutch device by pulling up the inner wire based on motor drive,
The outer receiver fixes the upper end portion of the outer wire below the electric actuator,
The emergency ejection operation tool is an L-shaped emergency ejection operation lever that can be rotated in the left-right direction,
The emergency ejection operation lever is
Along the up and down direction, the operation section that is operated in the left and right direction,
The combiner according to claim 1, further comprising: an operating unit that extends in the left-right direction to turn on the grain discharge clutch device by lifting the eye end according to an operation of the operation unit.   The acting portion has a slit through which the inner wire is inserted in the vertical direction, and the front-rear width of the slit is larger than the wire diameter of the inner wire and smaller than the front-rear width of the eye end. The combine according to claim 2.   The combiner according to claim 3, wherein the action portion includes a positioning groove portion that positions a contact position with the eye end when the eye end is lifted in accordance with an operation of the operation portion.

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