JP2588519Y2 - Combine steering control - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a combine which can perform a steering operation in which a lever switch is opened and closed by operating a multi-steering lever to engage / disengage a side clutch, and a steering control which is automatically performed based on a detection result of a direction sensor. A steering control device.

[0002]

2. Description of the Related Art Conventionally, a detection result of a direction sensor is input to a microcomputer, and a calculation result of the microcomputer is output to an operating device of a side clutch to perform automatic steering control, or a manual operation is performed by turning on and off the side clutch to perform steering. Directional combiners are already known.

[0003]

The steering control device in the above-mentioned known combine control uses a microcomputer to control the traveling direction, so that the cost is significantly increased. Further, since the switching between the automatic control and the manual operation is performed by the automatic manual switch, the cost is further increased and the operation is complicated.

[0004]

This invention SUMMARY OF THE INVENTION may, Ru a pair of levers switches to the right and left multi-steering lever one
On the other hand, in a combine in which a direction sensor is provided in a mowing part, and the current to a solenoid for turning on and off the side clutch is intermittently turned on and off according to the detection result of the direction sensor, the lever switch is constituted by a double throw contact type micro switch. When the lever switch is in an OFF state (a state where the multi-steering lever is in a neutral position), the solenoid can be energized via a direction sensor,
ON state (turn the multi-steering lever to the left or right
Self in tilting operation state) toward leading to the direction sensor
By turning off the motion control circuit and energizing the solenoid through a circuit bypassing the direction sensor , only the left / right tilting operation of the multi-steering lever can be performed.
The above-described problem has been solved by enabling the side clutch to be disengaged or engaged simultaneously with automatic manual switching without any special operation .

[0005]

[Function] During mowing and threshing work, when the multi-steering lever is set to the neutral position (the lever switch is in the OFF state) , the aircraft runs with both side clutches engaged.
The traveling direction is automatically corrected based on the detection result of the direction sensor. Also, when turning the fuselage, when the multi-steering lever is tilted to the left or right side to the turning position, the normally closed type lever switch on that side contacts the contact on the automatic circuit side where the direction sensor is inserted. OFF
With automatic control circuit is cross becomes, since the ON for the contacts of the circuit side which bypasses the direction sensor, the side of the side clutch off is energized to the solenoid, the aircraft turns. Lever when released is returned to the neutral position from the multi steering lever ends the body pivot, the lever switch returns to automatic control state capable direction turned ON for the contacts of the automatic circuit side.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with respect to a combine shown in the drawings. A threshing device 3 is mounted on one side of a machine base 2 having a traveling device 1, and an operation panel 5, A driver's seat 6, an engine 7, a grain hopper 8 and a cutter 9 are provided. A headlight 10 is provided on a lower front surface of the operation panel 5, a parking brake lever 11 is provided on a side portion, and a lower part of the grain hopper 8 is provided. A foldable sub-floor 12 is mounted on the side of the machine base 2, and turn indicators 13 are mounted on both outer surfaces of the grain hopper 8. Further, in front of the threshing device 3, a threshing device while controlling the depth of the weeding body 15, a cereal stem raising member 16 having a number of raising claws 16a, a cutting blade, and a harvested grain culm. A pretreatment device, such as a grain culm transport device, etc., to be supplied to 3 is mounted so as to be able to move up and down.

A U-shaped gripping rod 17 is fixed to the upper front side of one side of the operation panel 5, and a base of a multi-steering lever 18 provided at the center is provided with a hydraulic cylinder for raising and lowering the pre-processing device. a lift valves inserted into the oil passage, the side clutch cylinder c for actuating the steering clutch a and handbrake b, Yes in conjunction interlocking the <br/> the clutch valves inserted in the oil passage c, the clutch Bal When the gear is switched from the neutral position to the left and right operating positions, the operating oil is press-fitted into one of the side clutch cylinders c.
Because 4a slides into the other, the shifter 24b actuates off side clutch a. The main operation lever 22 , the auxiliary transmission lever 23 , the hydraulic lift lever 27 , the threshing clutch lever are provided on a side operation panel 21 disposed on the threshing device 3 side of the driving section including the operation panel 5 and the driver's seat 6. 28 and a reaping clutch lever 30 are provided. 31
Is a clutch pedal and 31a is a narrow guide.

On both sides of the multi-steering lever 18, double-throw contact type micro switches 14a, 14
b The Yes and oppositely arranged, as with the side clutch a and handbrake b is conventional and is mounted on both sides of the center gear 24 c is attached to the side clutch shaft 24,
When the solenoids sol (R) and sol (L) are energized, they are pushed out of the cam 19 protruding from the outer peripheral surface of the side clutch a and are pressed against the inclined surface 19b of the cam 19, whereby the side clutch a Is provided with a clutch pin 25 for disengaging.

FIG. 3 is a direction control circuit diagram for connecting and disconnecting the side clutch a by the clutch pin 25.
The solenoid sol (R), from a fuse connected to a power supply and a changeover switch 34 via a direction sensor 35,
In the automatic control circuit 32 leading to (L), the micro switches 14a and 14b are inserted in series, and these micro switches 14a and 14b are connected to each other when the multi-steering lever 18 is in the neutral position. C and E are turned ON , and the multi-steering lever 1
8 is tilted to the left or right, the automatic control circuit 32
The direction sensor 35
Solenoid sol (R), bypassing the, turns ON the contacts D or F of a manual circuit 33 leading to the (L). Note that the direction sensor 35 includes a right sensor 35a and a middle sensor 35 provided at the rear end of the right weeding body 15 and the inside of the weeding body 15 inside.
b.

[0010] When the harvesting and threshing operation is performed, when the changeover switch 34 is turned on, the monitor lamp 37 is turned on, and when the machine enters the standing cereal culm, the direction sensor 35 detects the culm row. Is detected, the solenoid sol (R) or (L) is energized according to the detection result, the clutch pin 25 protrudes, the side clutch a is disengaged, and the direction is corrected. The culm conveying device conveys and supplies it to the threshing device 3 for threshing.

When the multi-steering lever 18 is tilted to one side to the left (right) turn (fine correction position) as shown in FIG. Switch 14a or 14b
Is switched to the contact D or F, the automatic control circuit 32 is disconnected, and at the same time, the corresponding solenoid sol (R)
Or (L) is energized, so that the clutch pin 25 on that side is
Protrudes and disengages the side clutch a . At that time, since the side clutch a other side a engaged condition crawler on that side is forced drive, and the crawler and drag motion of the side clutch shaft 24 is cut side, whereby the cam 19 is rotated Therefore, the vehicle repeatedly turns on and off intermittently, and eventually the aircraft turns slowly. Next, when the tilt the tilting angle of the multi-steering lever 18 to the left (right) turn position, the clutch valves hydraulic oil to the steering clutch cylinder c and switched it is pressed, the spool 24a is shifter 24b which also serves as a shifter shaft When the multi-steering lever 18 is fully tilted to the sharp turning position by turning the side clutch a to the completely disengaged state, the side brake b is activated and the aircraft turns sharply. When the multi-steering lever 18 is released after the fuselage circulates and is engaged, the multi-steering lever 18 is automatically returned to the neutral position, and the micro switch 14a or 14b is switched to the contact point C or E, and automatic steering is performed. The state returns to a state where control can be performed.

[0012]

[Effect of the Invention] The present invention is a multi-steering lever 1
While Ru is provided a pair of levers switch the left and right 8, the direction sensor 35 provided in the reaper, the combine when taken to interrupt the electric current to the solenoid for switching on and off the side clutch by the detection result of the direction sensor 35,
The lever switch is a double throw contact type micro switch 1
4a, 14b, and the lever switch is turned off.
In the state (the state where the multi-steering lever is in the neutral position), the solenoid can be energized via the direction sensor 35 , and in the ON state (the state where the multi-steering lever 18 is tilted to one of right and left ), the direction sensor If the automatic control circuit 32 leading to 35 is disconnected
Since both were configured to be energized to the solenoid via a circuit which bypasses the direction sensor 35, even without any operations of the automatic-manual changeover switch, automatic control circuit is cut immediately by one-touch operation of tilting the multi steering lever 18 switching a drop-in replacement Rutotomoni can cut the side of the side clutch state, also, release the multi steering lever 18 (returns to the neutral position) can be returned to automatic control state by the detection result of the direction sensor 35 only it can. Further, the double-throw contact type lever switch without the need for expensive microcomputer microswitches 14a, since it is only necessary to 14b, cost reduction
Can contribute to

[Brief description of the drawings]

FIG. 1 is a perspective view of a combine.

FIG. 2 is a perspective view of a driving unit.

FIG. 3 is a control circuit diagram.

FIG. 4 is a plan view showing an operation pattern of a multi-steering lever.

FIG. 5 is a cross-sectional view of a side clutch portion of the transmission.

FIG. 6 is a longitudinal sectional view of the same.

FIG. 7 is an exploded perspective view showing a relationship between a side clutch pin and a side clutch.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Traveling device 3 Threshing device 5 Operation panel 14a, 14b Micro switch 18 Multi steering lever 19 Cam 32 Automatic control circuit 33 Manual circuit 35 Direction sensor

Claims (1)

(57) [Scope of request for utility model registration] 1. A While multi Ru a pair of levers switch to the left and right steering levers 18, the direction sensor 35 provided in the reaper, intermittently the current to the solenoid for switching on and off the side clutch by the detection result of the direction sensor 35 In the combine thus constructed, the lever switch is replaced by a double throw contact type micro switch 14a, 14
When the lever switch is in an OFF state (a state in which the multi-steering lever is in the neutral position), the solenoid can be energized via the direction sensor 35 , and is in an ON state (when the multi-steering lever 18 is left and right).
The direction sensor 3 is tilted to one side or the other ).
5 , the automatic control circuit 32 leading to the direction
A steering control device for a combine, characterized in that the solenoid is energized through a circuit bypassing the sensor (35) .