JP5322466B2 - Combine threshing / reaping clutch control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem of reaping clutch control devices of conventional combined harvesters, wherein the reaping clutch control device has forcibly been laid out in the consideration of the operability and operation frequency of other levers and switches in a limited space around a driver's seat, because switch operations have been performed with threshing, reaping clutch levers swung in the longitudinal and transverse directions, and the problem that a cost for the reaping clutch control device is necessary, although the operation frequency of the threshing, reaping clutch lever is a little, because a pre-treating portion is automatically controlled to stop in a pre-treating portion-lifted non-reaping time even during operation. <P>SOLUTION: The threshing/reaping clutch control device of combined harvester, is disposed with a disengagement indicator (79) for indicating that the states of a threshing clutch (32) and a reaping clutch (47) are operation-impossible states, a threshing indicator (77) for indicating to be a hand threshing work-possible state, and a reaping indicator (76) for indicating to be a reaping work-possible state on the side of a reaping clutch operation unit (75) and in the same direction as the operation direction of the reaping clutch operation unit (75). <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a threshing clutch mounted on a combine and a threshing clutch for intermittently transmitting power to a reaping device and a control device for the reaping clutch.

Conventionally, a threshing / reaping clutch lever is provided on an operation panel provided in a driving operation unit of a combine, and a control device drives an electric motor to detect a threshing clutch and a lever by detecting a lever position operated by an operator with a plurality of switches. One that intermittently operates a mowing clutch is known (for example, see Patent Document 1).
JP 2006-77959 A

However, in the conventional one, the switch operation is performed by the threshing / cutting clutch lever that swings back and forth and left / right, so the movement trajectory of the threshing / cutting clutch lever is large, and there is no other space in the limited space around the driver's seat. This greatly restricted the layout of the levers and switches.
In addition, even during work, the pre-processing section is controlled so that the pre-processing section automatically stops during non-cutting when the pre-processing is raised, so that the threshing / cutting clutch lever is operated infrequently but costs are high. It was. In addition, it takes time to adjust the switch with respect to the lever position during assembly.
An object of the present invention is to improve the above conventional problems.

A threshing unit that is driven by the power of the engine through the threshing clutch, a pre-processing unit that is driven by the power of the engine through the reaping clutch, and a driving operation unit that is operated for operation are mounted on the fuselage. the reaper clutch operation means is provided, in the thresher-reaper clutch control apparatus of combine having a control device for controlling the operation of the thresher-reaper clutch operation means an actuator for switching the engaged state of the thresher clutch and reaper clutch, thresher-reaper clutch operation The means is constituted by a seesaw type operating means that returns to the neutral position when not being operated, and is configured to be operable on one side and the other side across the neutral position, and the threshing clutch and the reaping clutch are both disconnected By operating the threshing / reaping clutch operating means from one side to the other, only the threshing clutch is connected. The threshing clutch and the cutting clutch are controlled to the connected state while maintaining the connected state of the threshing clutch by operating the threshing / cutting clutch operating means to one side from the connected state only to the threshing clutch. By operating the threshing / reaping clutch operating means to the other side from the state where both are connected, the threshing clutch is controlled to the disconnected state while maintaining the connected state of the threshing clutch. By operating the clutch operating means to the other side, the threshing clutch is controlled to the disconnected state while maintaining the disconnected state of the reaping clutch, and a disconnect indicator that displays that the threshing clutch and the reaping clutch are in an inoperable state; Threshing indicator to show that it is ready for handling, A cutting indicator to indicate that is, when arranged side by side in the operation direction in the same direction and thresher-reaper clutch operation means at the side of the thresher, reaper clutch operation unit, the operation direction of the thresher-reaper clutch operation means A cutting indicator is arranged in parallel on one side, a cutting indicator is arranged in parallel on the other side, and a threshing indicator is arranged between the cutting indicator and the cutting indicator .

By adopting the above configuration, the threshing / reaping clutch operating means and the mowing work ready state / handling work possible state in which the operability is good and the operation status is easy to understand in a limited space of the driving operation unit・ I was able to lay out an indicator that shows the status of not working.
Further, since the mechanical configuration of the threshing / reaping clutch operating means could be omitted, the cost could be effectively reduced together with the assembly man-hours.

Next, one embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is an overall right side view of the combine, and FIG. 2 is a plan view of the operation section of the combine.
The combine 1 is provided with a pre-processing unit 2 that cuts stems and stems in front of the fuselage so that the stems can be raised and lowered. 3)), a post-processing unit 5 for discharging the threshed waste is disposed at the rear, a driving operation unit 6 on which the operator is boarded is disposed on the right front side, and the rear is selected. A grain tank 7 for storing the grain is arranged, and the upper part of the vertical discharge cylinder 8 connected to the lower rear part of the grain tank 7 is stored in the grain tank 7 so that it can be swung and moved up and down with respect to the machine body. A discharge tube 9 for discharging the grains to the outside of the machine is arranged, and the left and right crawler running sections 10 are provided at the lower part of the machine body.

  The driving operation unit 6 includes a driving seat 11 on which an operator sits. A front panel 12 disposed in front of the driving seat 11 is operated in the left-right direction to steer the aircraft to the left and right and operate in the front-rear direction. Thus, a multi-steering lever 13 that moves the pre-processing unit 2 up and down is provided, and a side panel (operation panel) 15 disposed on the left side of the driving seat 11 has a main shift for shifting the traveling speed in a stepless manner. The left side of the lever 16 and the main transmission lever 16 is a sub-transmission lever 17 for shifting the traveling speed in two steps depending on the work purpose and cutting conditions, and the rear of the sub-transmission lever 17 is an engine for adjusting the engine speed. Various switch groups 21 are provided behind the control lever 19 and the main transmission lever 16.

FIG. 3 is a transmission diagram of the main part of the combine, and FIG. 4 is a right side view of the transport transmission.
The power of the engine 23 provided in the fuselage is input to the traveling HST 26 via the belt 25, and the output of the traveling HST 26 that is steplessly shifted by the operation of the main transmission lever 16 provided in the driving operation unit 6 is the traveling transmission 27, left and right Is transmitted to the left and right crawler travel parts 10 via the drive sprocket 28 to drive the aircraft forward and backward.
The power of the engine 23 is input from the engine pulley 29 to the work machine input pulley 33 via the transmission belt 31 and the threshing clutch 32, and is transmitted from the work machine input pulley 33 to the preprocessing unit 2 side and to the threshing unit 3 side. The power is branched to the transmission.

The transmission on the threshing unit 3 side is transmitted to the handling cylinder 35, the processing cylinder 36, and the waste straw conveying unit 37, and is also transmitted to the post-processing unit 5 side through the sorting unit.
Further, the transmission on the preprocessing unit 2 side is input to the transport HST 42 via the transport transmission 41. Then, the operation position of the main transmission lever 16 provided in the driving operation unit 6 is detected by a potentiometer, and the electric motor connected to the trunnion shaft of the transport HST 42 is controlled according to the detected operation position of the main transmission lever 16 to incorporate the microcomputer. Infinitely controlled by the device. The output of the transport HST 42 that has been steplessly transmitted is transmitted to the threshing feed chain 43 via the transport transmission 41 and from the transport output pulley 45 to the preprocessing input pulley of the preprocessing unit 2 via the transmission belt 46 and the cutting clutch 47. It is transmitted to 49.
Reference numeral 51 denotes an electric motor (actuator) for switching between the threshing clutch 32 and the reaping clutch 47. The electric motor 51 supports a threshing tension pulley 53 constituting the threshing clutch 32 via a threshing clutch link mechanism 52 so as to be swingable. It is connected to a threshing tension arm 55 and connected to a reaping tension arm 58 that rotatably supports a reaping tension pulley 57 constituting the reaping clutch 47 via a reaping clutch link mechanism 56.

FIG. 5 is a plan view of various switches in the driving operation unit.
Reference numerals 61, 62, and 63 denote tactile switches that constitute a horizontal automatic control changeover switch, a direction automatic control changeover switch, and a saw depth automatic control changeover switch, respectively, on the right side of the changeover switches 61, 62, and 63 (the aircraft traveling direction). On the front side, LEDs 65, 66, and 67 that constitute indicators for displaying the operation state of automatic control are provided.
Further, a selector switch 69 with a dial for automatic selection control and a selector switch 71 with a dial for turning control are provided below the selector switches 61, 62, 63 (right side in the aircraft traveling direction). LED 72 and 73 which comprise the indicator which displays the operation state of control are provided in the right side (front side of a fuselage advancing direction), respectively.
Further, the right side of the changeover switches 61, 62, 63 and the changeover switches 69, 71 with dials (the front side in the vehicle traveling direction) is the clutch connection switch SW 1 (clutch connection means) and the clutch disconnection switch SW 2 (clutch) of the threshing clutch 32 and the mowing clutch 47 The seesaw type switch (threshing / cutting clutch operating means) 75 constituting the cutting means), and an indicator for displaying the intermittent state of the threshing clutch 32 and the cutting clutch 47 on the left side of the seesaw type switch 75 (the rear side in the machine body traveling direction). LEDs 76, 77, and 79 are provided.

FIG. 6 is a diagram illustrating the operation of the threshing clutch and the mowing clutch (both clutches are disengaged), FIG. 7 is a diagram illustrating the operation of the threshing clutch and the mowing clutch (only the threshing clutch is connected), and FIG. It is a figure (both clutch connection state).
The intermittent action of the threshing clutch 32 and the reaping clutch 47 will be described with reference to FIGS.
First, when switching only the threshing clutch 32 from the state where both the threshing clutch 32 and the reaping clutch 47 in FIG. 6 are switched to the connected state, the pinion gear 81 that drives the electric motor 51 and is fixed to the motor shaft is shown in FIG. 6A, the threshing clutch link mechanism 52 and the threshing tension arm 55 are moved in the direction of FIG. 6A by rotating the sector gear 82 in the direction of FIG. 6A, and the transmission belt 31 is tensioned by the threshing tension pulley 53 (FIG. 7). State). The drive of the electric motor 51 is controlled by a control device equipped with a microcomputer so that the operation amount of the sector gear 82 is detected by a potentiometer 83 and the electric motor 51 is stopped when a preset position is detected.

Next, when switching only the threshing clutch 32 of FIG. 7 to the connected state of the reaping clutch 47, when driving the electric motor 51 and rotating the pinion gear 81 fixed to the motor shaft in the direction of FIG. The cutting gear link mechanism 56 and the cutting tension arm 58 are moved in the direction of FIG. 7A by rotating the sector gear 82 in the direction of FIG. 7A, and the transmission belt 46 is tensioned by the cutting tension pulley 57 (state of FIG. 8).
Since the threshing clutch 32 and the cutting clutch 47 are disconnected in the reverse of the connection drive, the sector gear 82 is obtained when the pinion gear 81 fixed to the motor shaft by driving the electric motor 51 is rotated in the direction b in FIGS. 7 and 8, the clutch link mechanisms 52 and 56 and the tension arms 55 and 58 are moved in the direction B of FIGS. 7 and 8, respectively, so that the tension pulleys 53 and 57 are transmitted. Separated from the belts 31 and 46.

FIG. 9 is a control timing chart of the threshing clutch and the reaping clutch by operating the clutch connection switch and the clutch disconnection switch.
The initial state is an inoperable state in which the threshing clutch 32 and the reaping clutch 47 are disconnected while the machine is stopped, and the cut LED 79 on the left side of the seesaw type switch 75 is lit in red.
First, when the clutch connection switch SW1 is operated while traveling is stopped, the electronic buzzer issues a single sound, the cut LED 79 is turned off, the threshing LED 77 is lit in orange, and the threshing clutch 32 is connected by driving the electric motor 51. At the same time, the conveyance HST 42 is controlled to be driven at a constant speed, so that the threshing unit 3 is driven and the threshing feed chain 43 is rotated at a constant speed so that a handling operation is possible.
When the clutch connection switch SW1 is operated again, the electronic buzzer issues a single sound, the threshing LED 77 is turned off, the reaping LED 76 is lit in green, and the electric clutch 51 is connected by driving the electric motor 51. At the same time, the conveyance HST 42 is stopped, so that the threshing feed chain 43 is also stopped and a cutting operation is possible. In the state where the cutting operation is possible, the preprocessing unit 2 and the threshing feed chain 43 are in a vehicle speed interlocking state, so that when the airframe is stopped, the preprocessing unit 2 and the threshing feed chain 43 are interlocked.
When the main transmission lever 16 is operated forward in this state, the transport HST 42 is driven to change gears in conjunction with the vehicle speed, so that the preprocessing unit 2 and the threshing feed chain 43 are also driven in conjunction with the vehicle speed.

Next, when the clutch disconnection switch SW2 is operated from this state, the electronic buzzer issues a single sound, the reaping LED 76 is extinguished and the threshing LED 77 is lit in orange, and the reaping clutch 47 is disengaged and the transport HST 42 is related to the vehicle speed. By shifting to the constant speed rotation instead, the pre-processing unit 2 stops and the threshing feed chain 43 is also shifted to the constant speed rotation so that the handling operation can be performed. Therefore, when the vehicle speed is high, the conveyance HST 42 is controlled to be decelerated, and when the vehicle speed is low, the conveyance HST 42 is controlled to increase.
When the clutch disengagement switch SW2 is operated again, the electronic buzzer issues a single sound, the threshing LED 77 is turned off and the disengagement LED 79 is lit in red, and the threshing clutch 32 is disengaged and the transport HST 42 is stopped. 3 and the threshing feed chain 43 are also stopped and become inoperable.

Next, if the clutch connection switch SW1 is continuously operated for a certain time T or more while the traveling is stopped, the electronic buzzer issues a single sound, the cut LED 79 is turned off, the reaping LED 76 is lit in green, and the threshing clutch 32 and the reaping clutch 47 Are connected and the cutting operation is possible, but since the traveling is stopped, the transport HST 42 maintains the stopped state.
If the clutch disengagement switch SW2 is continuously operated for a certain time or longer from this state, the electronic buzzer issues a single sound, the reaping LED 76 is extinguished, the disengagement LED 79 is lit red, and the threshing clutch 32 and the reaping clutch 47 are disengaged. The work becomes impossible.
As a result, when performing the cutting operation, it is possible to quickly shift to the cutting operation state without operating the clutch connection switch SW1 twice (continuously), and similarly, it is possible to quickly shift to the inoperable state, so that the operation is performed efficiently. be able to.

  In the present embodiment, the clutch connection switch SW1 and the clutch disengagement switch SW2 are configured by the seesaw type switch 75, but the present invention is not limited thereto, and both switches may be configured by tact switches.

It is a whole right side view of a combine. It is a drive operation part top view of a combine. It is a principal part transmission diagram of a combine. It is a right view of a conveyance transmission. It is various switch group top views of a driving | operation operation part. It is action explanatory drawing (both clutch disengaged state) of a threshing clutch and a mowing clutch. It is action explanatory drawing (only a threshing clutch is a connection state) of a threshing clutch and a mowing clutch. It is action explanatory drawing (both clutch connection state) of a threshing clutch and a mowing clutch. It is a control timing chart figure of a threshing clutch and a mowing clutch by clutch connection switch and clutch disconnection switch operation.

Explanation of symbols

2 Pre-processing unit 3 Threshing unit 6 Driving operation unit 23 Engine 32 Threshing clutch 47 Mowing clutch 51 Actuator (electric motor)
75 Threshing / reaping clutch operating means (seesaw type operating means)
76 Cutting indicator 77 Threshing indicator 79 Cutting indicator

Claims (1)

A threshing portion (3) driven by the power of the engine (23) via the threshing clutch (32), a pretreatment portion (2) driven by the power of the engine (23) via the cutting clutch (47), and driving A driving operation unit (6) to be operated is mounted on the aircraft,
A threshing / reaping clutch operating means (75) is provided in the driving operation section (6),
In the combine threshing / cutting clutch control device including the control device for controlling the threshing clutch (32) and the actuator (51) for switching the intermittent state of the cutting clutch (47) by operating the threshing / cutting clutch operating means (75),
The threshing / reaping clutch operating means (75) is constituted by a seesaw type operating means that returns to the neutral position when not being operated, and is configured to be operable on one side and the other side across the neutral position,
By controlling the threshing / reaping clutch operating means (75) to the one side from the state where both the threshing clutch (32) and the reaping clutch (47) are disconnected, only the threshing clutch (32) is controlled to be connected,
Only the threshing clutch (32) is operated from the connected state to the threshing / reaping clutch operating means (75) to one side, thereby controlling the reaping clutch (47) to the connected state while maintaining the connected state of the threshing clutch (32). ,
By operating the threshing / reaping clutch operating means (75) to the other side from the state where both the threshing clutch (32) and the reaping clutch (47) are connected, the threshing is performed while maintaining the connected state of the threshing clutch (32). Only the clutch (47) is controlled to be disconnected,
By operating the threshing / reaping clutch operating means (75) from the connected state to the other side only from the threshing clutch (32), the threshing clutch (32) is controlled to the disconnected state while maintaining the disconnected state of the cutting clutch (47). ,
A cutting indicator (79) for indicating that the state of the threshing clutch (32) and the reaping clutch (47) is inoperable, a threshing indicator (77) for indicating that the handling operation is possible, and reaping the reaper and indicators (76) indicating that a workable state, arranged side by side in the operation direction in the same direction and thresher-reaper clutch operation means at the side of the thresher, reaper clutch operation means (75) (75) Hits the,
The cutting indicator (76) is arranged in parallel on one side of the operation direction of the threshing / cutting clutch operating means (75), the cutting indicator (79) is arranged in parallel on the other side, and the threshing indicator (77) is arranged in the cutting indicator (76). A threshing / reaping clutch control device for a combine, which is disposed between the cutting indicator (79) and the cutting indicator (79) .

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