JP3011348B2 - Feed chain drive controller - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for easily changing the drive / stop of a feed chain in a combine according to the operation.

[0002]

2. Description of the Related Art In a conventional combine, a harvesting operation can be performed by setting a threshing clutch lever to "ON" and further setting a mowing clutch lever to "ON", the feed chain is driven, and the mowing clutch lever is set to "OFF". ", The mowing device and the feed chain are stopped. When the main transmission lever is shifted from forward to neutral or reverse with the threshing clutch lever and the reaping clutch lever in the "on" state, the reaper is stopped.

[0003]

With such a conventional construction, when performing manual handling, the main shifting lever is shifted to neutral, and then the threshing clutch lever and the mowing clutch lever are set to "on", and the mowing device is operated. Was stopped, but the reaper would be very dangerous because the reaping device would be driven when the vehicle was going forward a little, and when the main transmission lever was switched to neutral or reverse during the work, However, since the feed chain continued to rotate, the posture of the culm was disturbed at the entrance of threshing, resulting in unhandled or wrapped wounds, resulting in poor succession. Therefore,
The reaping clutch lever is turned to "off", but this backward movement is performed at the time of reversing, so that the operability is deteriorated since the main shifting lever is replaced with the reaping clutch lever. Therefore, the feed chain may be stopped in conjunction with the switching of the main shift lever to neutral or reverse, but manual operation becomes impossible.

[0004]

SUMMARY OF THE INVENTION In order to solve such problems, the present invention has means for detecting neutral and reverse of a main shift lever, and means for turning on / off a feed chain drive clutch. A hand switch is arranged, the detection means, the ON / OFF means, and the hand switch are connected to a control circuit. When the hand switch is turned on, the feed chain is driven regardless of the position of the main shift lever. The feed chain is configured to stop the feed chain when the main shift lever is neutral or reverse.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The problem to be solved and means to be solved by the present invention are as described above. Next, the embodiment shown in the attached drawings will be described. FIG.
3 is a plan view, FIG. 3 is a side view of the main transmission lever, FIG. 4 is a plan view of the same, FIG. 5 is a side view of a feed chain clutch portion, FIG. 6 is a plan view of the same, and FIG. 8 is a control circuit diagram, FIG. 9 is a drive skeleton diagram, and FIG. 10 is a control flowchart.

1 and 2, a description will be given of the overall structure of the combine. A fuselage frame 2 is mounted on a crawler-type traveling device 1, and a reaper C is disposed in front of the fuselage frame 2. In the device C, the weeding plate 6 is protruded from the front end of the mowing frame 3, and a raising case 4 is erected at the rear of the cutting frame 3. A chain having a tine is wound around the raising case 4 to rotate. It causes lodging grain culms. A scraping device, an upper transport device and a lower transport device are disposed at the rear of the raising case 4, and a cutting blade 9 is laid horizontally on the cutting frame 3 below the scraping device to cut the root of the grain stalk and transport it. It is transported backward by the device.

[0007] The root of the grain culm conveyed by the conveying device is sandwiched by a feed chain 20, the tip side is threshed by a handling drum 19 in a threshing room, and the culm is discharged outside by a straw chain 15. It is discharged. The grains and the like after threshing are sorted out, the fines are stored in a Glen tank 17 on the side of the threshing room, and the straw waste and the like are discharged outside the machine, and the Glen tank 17 is removed.
The paddy inside can be loaded on a truck or the like by the discharge auger 18.

A driver's seat 16 is disposed in front of the Glen tank 17, and an engine E and a transmission case 26 are disposed below the driver's seat 16. As shown in FIG. Power is transmitted to the transmission case 26 through the transmission case 26,
The internal hydraulic transmission is shifted by the operation of the main transmission lever 5 so that the crawler traveling device 1 and the one-way clutch C
Power is transmitted to the reaper C via L3, and the handle 1 is transmitted from the output shaft of the engine E via the threshing clutch CL2.
The power is transmitted to the conveyor 9, the straw processing device and the feed chain 20.

An operation column 12 is provided at the front of the driver's seat 16.
A one-lever type steering lever 13 protrudes from the operation column 12, and a side column 22 is erected on the side of the seat 10, and the main transmission lever 5 and the sub transmission lever are provided on the side column 22. 23, a threshing clutch lever 7, a mowing clutch lever 8, a hand-operated switch 25, and the like are provided.

As shown in FIGS. 3 and 4, the main speed change lever 5 is connected to a lever guide 22 on the side column 22.
a connecting rod that projects upward from inside the main transmission lever 5 to pivotally support the rotation base 5a of the main transmission lever 5 via a link ball on the shaft 30 and that is connected to the transmission shaft of a hydraulic transmission. One end of the switch 32 is pivotally connected, and a contact piece 31a of the switch 31 is disposed at the end of a shaft 32a that supports the connecting rod 32 so as to be able to abut. Therefore, when the main shift lever 5 is turned to the neutral or reverse position, the switch 31 is turned on.
You do it. A hand switch 25 is provided on the side column 22, and a hand switch 24 is provided near the feed chain 20.

A drive transmitting portion D of the feed chain 20 is provided at a rear portion of the feed chain 20, and the drive transmitting portion D of FIG.
As shown in the figure, the belt 42 wound around the pulley for driving the first conveyor or the second conveyor is wound around the pulley 44 on the drive shaft 43, and the gears 48.5 in the gear case 45 are provided.
0 and the like, and transmitted to a gear 49 loosely fitted to the feed chain drive shaft 47. The shaft 46 is for driving the dust exhaust fan 41, and a sprocket 34 around which the feed chain 20 is wound is fixedly provided at an end of the feed chain drive shaft 47. A spline-fitted sliding body 51 is externally fitted on the center of the feed chain drive shaft 47, and a clutch claw 51a is formed at one end of the sliding body 51, and the gear 49 is opposed to the clutch claw 51a. A feed chain clutch CL1 is formed by forming a clutch claw 49a, and the sliding body is urged by a spring 52 in a clutch engagement direction, so that a cam groove 53 is formed on the sliding body 51, and a pin 54 is formed. Can be inserted into the cam groove 53. When the cam groove 53 rotates with the pin 54 inserted, the groove is cut in a direction in which the sliding body 51 is separated from the clutch claw 49a. Is configured to be cut off. Switches 33a and 33b are provided to detect the positions of the pins 54 in the on (in a state where the pins 54 are separated from the sliding body 51) and in the off (in a state where the pins 54 are inserted into the cam grooves 53). ing.

At the other end of the pin 54, as shown in FIG.
One end of the bell crank arm 55 is pivotally supported, the center of the bell crank arm 55 is pivotally supported by a shaft 56, and the other end is connected with a connecting arm 57 and a spring 58.
The other end is pivotally supported in the middle of an arm 59, the arm is rotatable around a shaft 60, and the deceleration case 62 is
The deceleration case 62 is connected to an output shaft of a motor M, and the rotation arm 61 is rotated by driving the motor M.
Arm 59, connecting arm 57, bell crank arm 55
The pin 54 can be slid in the insertion / removal direction via the pin. However, as shown in FIG.
5 ′ is connected to a solenoid 63 via a wire 64, and the solenoid
Can be inserted and removed.

The thus-arranged hand-operated switch 24
25, switches 31, switches 33a and 33b, motor M (solenoid 63), and lamps 65 and 66 which are turned on when the manual switches 24 and 25 are turned on, are connected to the control circuit 67 as shown in FIG.

In such a configuration, control is performed as shown in the flowchart of FIG. That is, reaping
When the threshing operation is performed, the threshing clutch lever 7 and the reaping clutch lever 8 are turned to the "in" side, the manual switches 24 and 25 are turned off, the lamps 65 and 66 are turned off, and the main speed change lever is turned off. When 5 is rotated to the forward position,
When both the reaper C and the feed chain 20 are driven and the main transmission lever 5 is shifted to neutral or reverse, the reaper C is stopped, and the position of the pin 54 is not on the “OFF” side (the off-side switch 33b is turned off). The motor M is driven to the "off" side until the off-side switch 33b is turned on, and the clutch CL1 of the feed chain 20 is turned off.
It stops as F. Then, when the culm at the corner or the like is manually handled, the manual switch 24,
Alternatively, the hand-operated switch 25 is turned on, and the lamp 65 or 66 of the switch is turned on so that the operator can know it. Next, if the position of the pin 54 is not on the “in” side (when the input switch 33a is off) ) The motor M is driven to the “in” side and driven until the input switch 33a is turned on to drive the feed chain 20.

As shown in FIG. 11, the main shift lever 5 is biased forward by a spring 36, and a switch 37 is provided at the neutral position on the reverse side so that the main shift lever is moved to the neutral position on the forward side. Then, the mowing device is stopped, and when the switch 37 is turned to the reverse neutral position where the switch 37 is turned on, the feed chain 20 can be stopped. The work can be performed at the position, and the feed chain can be intentionally stopped at the time of circulating or the like.

[0016]

As described above, the present invention has the following advantages. That is, when the manual operation switch is turned on when performing the manual operation, the feed chain can be driven irrespective of the rotation of the main shift lever by setting the threshing clutch lever to “on”, and the mowing device is stopped. Work can be performed in the state, and, at the time of work, when the main shift lever is switched to neutral or reverse, both the reaping device and the feed chain also stop, and at the entrance of threshing, the culm posture is not disturbed In addition, the operation of the reaping clutch lever is no longer necessary, and the operation can be performed safely and easily.

[Brief description of the drawings]

FIG. 1 is an overall side view of a combine.

FIG. 2 is a plan view of the same.

FIG. 3 is a side view of a main speed change lever.

FIG. 4 is a plan view of the same.

FIG. 5 is a side view of a feed chain clutch unit.

FIG. 6 is a plan view of the same.

FIG. 7 is a side view showing another embodiment.

FIG. 8 is a control circuit diagram.

FIG. 9 is a drive skeleton diagram.

FIG. 10 is a control flowchart.

FIG. 11 is a plan view of a lever guide portion showing another embodiment of the hand-operated switch.

[Explanation of symbols]

 C Harvester M Motor 5 Main gear lever 24/25 Hand-operated switch 31 Switch 67 Control circuit

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Tsuneo Sugimura 1-32 Chayacho, Kita-ku, Osaka-shi, Osaka Inside Yanmar Agricultural Machinery Co., Ltd. No. Yanmar Agricultural Machinery Co., Ltd. (56) References Japanese Utility Model Sho 58-150924 (JP, U) Japanese Utility Model Sho 52-170656 (JP, U) Japanese Utility Model Sho 59-42129 (JP, U) Japanese Utility Model No. 2- 90943 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01F 12/10 A01D 69/00

Claims (2)

(57) [Claims] In a configuration in which the threshing clutch lever and the reaping clutch lever of the combine are on the "in" side and the reaper is stopped when the main transmission is shifted to neutral or reverse, neutral and reverse of the main transmission lever are detected. To turn on the feed chain drive clutch
A feed chain drive control device having means for turning off, and configured to stop the feed chain when the main shift lever is in neutral or in reverse. 2. In a configuration in which the threshing clutch lever and the reaping clutch lever of the combine are on the "in" side and the reaper is stopped when the main transmission is shifted to neutral or reverse, the neutral and reverse of the main transmission lever are detected. To turn on the feed chain drive clutch
・ Having means for turning off, arranging a hand-operated switch, connecting the detection means, ON / OFF means and hand-operated switch to a control circuit, and turning on the feed chain when the hand-operated switch is turned on irrespective of the position of the main transmission lever. A feed chain drive control device configured to be driven.