JPH05184231A - Feed chain drive controller - Google Patents

Abstract

PURPOSE:To improve the controllability by driving the feed chain regardless of the position of the main speed change lever when the manual-operation switches are connected and stopping the feed chain when the manual-operation switches are disconnected in a state where the main speed change lever is at the non-advance position. CONSTITUTION:When the manual-operation switches 24 and 25 are connected, the feed chain is driven regardless of the position of the main speed change lever. When the manual-operation switches are disconnected in a state where the main speed change lever is at the neutral position or at the advance position, the feed chain is stopped, thereby dispensing with the operation of the cutting clutch lever.

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 driving / stopping of a feed chain in a combine according to work.

[0002]

2. Description of the Related Art In a conventional combine harvester, the threshing clutch lever is set to "on" and the mowing clutch lever is further set to "on" so that the mowing work can be performed, the feed chain is also driven, and the mowing clutch lever is "off". Then, the reaper and the feed chain were stopped. When the threshing clutch lever and the reaping clutch lever are in the "on" state, the reaping device is configured to stop when the main transmission lever is shifted from forward to neutral or reverse.

[0003]

With such a conventional structure, when performing a manual operation, the main gear shift lever is shifted to the neutral position, and then the threshing clutch lever and the reaping clutch lever are set to "on" to obtain the reaping device. I was working with the gear stopped, but when I moved forward a little, the mowing device would drive, which would be extremely dangerous, and when I changed the main shift lever to neutral or reverse, the mowing device would be very dangerous. However, the feed chain continued to rotate, and at the entrance of the threshing, the culm posture was disturbed and left unhandled, or it was wrapped around and the transfer was not successful. Therefore,
Although the reaping clutch lever is turned to "off", the reverse operation is carried out at the time of traveling, so that the main gear shift lever is replaced with the reaping clutch lever, which deteriorates the operability. Therefore, it suffices to stop the feed chain in conjunction with the switching of the main transmission lever to neutral or reverse, but the manual operation becomes impossible.

[0004]

In order to solve such a problem, the present invention has means for detecting the neutral and reverse of the main transmission lever, and means for turning on / off the feed chain drive clutch. A hand-operated switch is arranged, the detection means, ON / OFF means and hand-operated switch are connected to a control circuit. When the hand-operated switch is ON, the feed chain is driven regardless of the position of the main gearshift lever, and when the hand-operated switch is OFF. The main shift lever is configured to stop the feed chain when the vehicle is in neutral or in reverse.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The problems to be solved and the means for solving the problems of the present invention are as described above. Next, the embodiments shown in the accompanying drawings will be described. FIG.
Is a plan view, FIG. 3 is a side view of the main shift 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. 7 is a side view of another embodiment. 8 is a control circuit diagram, FIG. 9 is a drive skeleton diagram, and FIG. 10 is a control flowchart.

The overall structure of the combine in FIGS. 1 and 2 will be described. A machine frame 2 is placed on a crawler type traveling device 1, and a mowing device C is arranged in front of the machine frame 2. In the device C, a grass plate 6 is projected at the front end of the mowing frame 3, a case 4 is erected at the rear part of the frame, and a chain having a tine is wound around the case 4 and is rotated. It causes lodging culms. A scraping device, an upper conveying device and a lower conveying device are arranged at the rear part of the raising case 4, and a cutting blade 9 is horizontally provided on a mowing frame 3 below the scraping device to cut and convey the grain stems. The device conveys it to the rear.

The root of the grain culm transported by the transporting device is sandwiched by the feed chain 20, the tip side is shredded by the handling cylinder 19 in the threshing chamber, and the culm is ejected outside by the straw chain 15. It is discharged. The grains after threshing are sorted, the refined grains are stored in the grain tank 17 on the side of the threshing chamber, and the straw debris are discharged to the outside of the machine.
The paddy inside can be loaded on a truck or the like by the discharge auger 18.

A driver's seat 16 is arranged in front of the Glen tank 17, an engine E and a transmission case 26 are arranged under the driver's seat 16, and the main clutch CL0 is applied from the engine E as shown in FIG. Power is transmitted to the mission case 26 via the
The hydraulic transmission inside is shifted by the operation of the main transmission lever 5, so that the crawler type traveling device 1 and the one-way clutch C are changed.
Power is transmitted to the harvesting device C via L3, and the handling cylinder 1 is output from the output shaft of the engine E via the threshing clutch CL2.
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.
Is installed upright, a one-lever type steering lever 13 is projected on the operation column 12, a side column 22 is installed upright on the side of the seat 10, and the main shift lever 5 and the sub shift lever are mounted on the side column 22. 23, the threshing clutch lever 7, the reaping clutch lever 8, the manual handling switch 25, etc. are provided.

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

Further, the drive transmission portion D of the feed chain 20 is arranged at the rear portion of the feed chain 20, as shown in FIG.
As shown in FIG. 4, the belt 42 wound around the pulley that drives the first conveyor and 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 rotated.
It is transmitted to the gear 49 loosely fitted to the feed chain drive shaft 47 via 0 or the like. The shaft 46 is for driving the dust collection fan 41, and the sprocket 34 around which the feed chain 20 is wound is fixedly provided at the end of the feed chain drive shaft 47. A sliding body 51 fitted in a spline is externally fitted on the center of the feed chain drive shaft 47, a clutch pawl 51a is formed at one end of the sliding body 51, and the gear 49 is opposed to the clutch pawl 51a. The feed claw 49a is formed by forming the clutch claw 49a, the sliding body is biased by the spring 52 in the clutch engagement direction, the cam groove 53 is formed on the sliding body 51, and the pin 54 is formed. Can be inserted into the cam groove 53, and when the cam groove 53 is rotated with the pin 54 inserted, the groove is cut in a direction of separating the sliding body 51 from the clutch pawl 49a, and when the pin 54 is inserted, power is removed. Is configured to be cut off. Then, switches 33a and 33b for detecting the respective positions of the pin 54 are provided at an on position (a state where the pin 54 is separated from the sliding body 51) and an off position (a state where the pin 54 is inserted into the cam groove 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 of the bell crank arm 55 is connected with a connecting arm 57 and a spring 58.
The other end of the arm 59 is pivotally supported in the middle of the arm 59, the arm is rotatable about a shaft 60, and the deceleration case 62 is provided at the tip.
The deceleration case 62 is pivotally supported by a more protruding rotating arm 61, the deceleration case 62 is connected to an output shaft of a motor M, and the rotating arm 61 is rotated by driving the motor M.
Arm 59, connecting arm 57, bell crank arm 55
The pin 54 is slidable in the insertion / removal direction via the. However, as shown in FIG.
5'is connected to the solenoid 63 via a wire 64, and the solenoid 54 is driven to drive the pin 54
It is also possible to insert and remove.

The hand-operated switch 24 thus arranged.
25, the switch 31, the switches 33a and 33b, the motor M (solenoid 63), and the lamps 65 and 66 that 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 structure, the control is performed as shown in the flow chart of FIG. That is, mowing
When performing the threshing work, the threshing clutch lever 7 and the reaping clutch lever 8 are turned to the "on" side, the hand switches 24 and 25 are turned off, the lamps 65 and 66 are turned off, and the main transmission lever is turned on. When 5 is rotated to the forward position,
When the harvesting device C and the feed chain 20 are both driven and the main transmission lever 5 is shifted to neutral or reverse, the harvesting device C is stopped and the position of the pin 54 is not on the "cut" side (the cut-side switch 33b is When it is 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 OF.
Stop as F. When hand-cutting culms such as corners are handled manually, the hand-handling switch 24,
Alternatively, the hand switch 25 is turned on and the lamp 65 or 66 of the switch is turned on so that the operator can recognize it, and then the position of the pin 54 is not on the "in" side (when the on-side switch 33a is off. ) The motor M is driven to the "ON" side until the ON side switch 33a is turned ON to drive the feed chain 20.

As shown in FIG. 11, the main speed change lever 5 is biased forward by a spring 36, and a switch 37 is provided at the reverse side neutral position to move the main speed change lever to the forward side neutral position. Then, it is also possible to stop the feed device 20 when the reaper is stopped and the switch 37 is turned to the neutral position on the reverse side. The work can be performed at the position, and the feed chain can be intentionally stopped when traveling.

[0016]

Since the present invention is configured as described above, it has the following effects. That is, when performing a manual handling operation, if the manual handling switch is turned ON, and the threshing clutch lever is set to "ON", the feed chain can be driven regardless of the rotation of the main transmission lever, and the harvesting device is stopped. It becomes possible to work in the state, and at the time of work, when the main speed change lever is switched to neutral or reverse, both the mowing device and the feed chain are stopped, and the culm posture is not disturbed at the threshing entrance. The operation of the reaping clutch lever is no longer necessary, and it is now possible to operate safely and easily.

[Brief description of 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 shift 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 of the present invention.

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 switch.

[Explanation of symbols]

 C Mowing device M Motor 5 Main gearshift lever 24/25 Manual handling switch 31 Switch 67 Control circuit

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tsuneo Sugimura 1-32, Chaya-cho, Kita-ku, Osaka City, Osaka Prefecture Yanmar Agricultural Machinery Co., Ltd. No. Yanmar Agricultural Machinery Co., Ltd.

Claims (2)

[Claims] 1. A neutral and reverse drive of a main shift lever is detected in a configuration in which the threshing clutch lever and the reaping clutch lever of the combine are on the "on" side and the reaper is stopped when the main transmission is shifted to neutral or reverse. And the feed chain drive clutch is turned on.
A feed chain drive control device having means for turning it off, wherein the main shift lever is configured to stop the feed chain when the vehicle is in neutral or in reverse. 2. The neutral and reverse movements of the main gear shift lever are detected in a configuration in which the threshing clutch lever and the reaping clutch lever of the combine are on the "on" side and the reaper is stopped when the main transmission is shifted to neutral or reverse. And the feed chain drive clutch is turned on.
・ Has a means to turn off, arranges a hand switch, connects the detection means, the ON / OFF means, and the hand switch to the control circuit, and when the hand switch is turned on, the feed chain is connected regardless of the position of the main shift lever. A feed chain drive control device characterized by being configured to be driven.