JPS60224407A - Running apparatus of moving agricultural machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] This invention relates to a traveling device for a mobile agricultural machine,
It can be used in rice transplanters, seeding machines, etc. For example, in a rice transplanter, a float installed at the bottom of the running vehicle slides on the soil surface, and the float moves up and down due to the unevenness of the tiller. The running wheels are controlled in a vertically interlocking manner, and the seedling tank moves left and right while running, and the seedlings loaded in the tank are planted into the soil using a seedling machine. When this rice transplanter is run and turned around in the field, if the running vehicle body is tilted, the floats move up and down.
This vertical movement may cause the running wheels to rise and fall, making it difficult to easily turn the running wheel.

The present invention aims to eliminate such drawbacks, and therefore takes the following technical measures. That is, the running vehicle body (1
) When the float (2) installed on the float (2) slides in contact with the soil surface, the running wheels (3) are lowered when the float (2) moves upwards above a specified level, and conversely when it moves downwards below a specified level. is controlled to raise the traveling wheel (3), and also controls the lowering position of the traveling wheel (3) by the float (2) using a rolling sensor (4) that detects the left and right inclination of the traveling vehicle body (1). A traveling device for a mobile agricultural machine is constructed in such a manner that the two are interlocked to be fixed.

This invention has the following technical effects due to such a configuration. That is, when traveling for work, the float (2) provided on the traveling vehicle body (1) slides on the soil surface, and the difference in depth to the tiller in the field causes the float (2) to slide on the soil surface.
) moves up and down, and the vertical movement of the float (2) causes the traveling wheels (3) to move in a vertically interlocked manner. When the float (2) is tilted, the pressure of the soil surface applied to the bottom of the float (2) increases and the running wheel (3) descends.
) and the float (2) becomes wider, and at the same time the rolling sensor (4) provided on the traveling vehicle body (1)
detects the inclination of this running vehicle body (1) and adjusts the running wheels (
3) is in a state where the lowering control position is fixed, so the vertical movement of the running wheel (3) is fixed, and the lowering control position of the running wheel (3) is fixed.
Since the float (2) does not rise or fall, it is possible to easily turn the travel direction, and the mud on the soil surface is less likely to be pushed by the float (2).

In the illustrated example, (1) is a running vehicle body, and a prime mover (5) and a gear case (11) are attached to the front of this running vehicle body (1).
It is equipped with a handle (6
), a seedling tank (7) is provided on this handle (6), and (8) is a case in which an interlocking mechanism is installed, which is interlocked to move the seedling tank (7) from side to side, A seedling planting device (9) is also configured in conjunction with the seedling tank (7).
) is provided so that the seedlings are divided and transplanted by the seedling planting device (9). (3) is a running wheel, which is mounted on a shaft at the tip of a wheel case (10) rotatably mounted between the connecting pipes of the running vehicle body (1), and is connected to the gear case (11) from the driving 4m (5). It is configured to be interlocked so that it can be driven and rotated appropriately by gears etc. installed in the. (2) is a float, which is located at the bottom of the outside of the vehicle body (1), and the rear part is attached to the handle (6) with a pin (12) so that it can move up and down independently, and the front part has a long hole. The arm (13) having an arm (13) is attached to the side pin of the connecting pipe (23) of the traveling vehicle body (1) so as to be vertically movable. A connecting rod (14) and a valve arm (
15). These floats (2) are configured to bounce downward and slide fIlt# on the soil surface.

A cylinder (16) and a hydraulic valve (17) are integrally provided at the bottom of the connecting pipe (23) of the traveling vehicle body (1), a piston (18) is provided within the cylinder (16), and the gear case (11) is provided with a piston (18). The hydraulic valve (17) and the farm (15) are configured to be interlocked so that oil is circulated from the oil pump (19) installed in the oil pump (19) to the hydraulic valve (17) via the oil feed pipe, and the flow 1 ( 2) The hydraulic valve (17) is actuated by the vertical movement, and the piston (18) in the cylinder (16) is interlocked to move back and forth. The lower end of a letter-shaped arm bar (2o) is rotatably connected to the tip of the piston (18), and the central part of this arm bar (2o) is connected to the connecting pipe (2o) of the traveling vehicle body (1).
The metal fitting (23) provided on the upper part is rotatably supported by a pin (25) on the metal fitting (20), and the tip is rotatably connected to the tip of the actuating arm (21) by a pin (2B). The lower end of the operating arm (21) is pivotally connected to the center of the wheel case (1o), and when the piston (18) moves forward from inside the cylinder (18), the running wheel (3) descends. Conversely, when the piston (18) enters and moves into the cylinder (16), the traveling wheels (3) are configured to move upward.

A rolling sensor (4) is provided above the connecting pipe (23) of the traveling vehicle body (1), and a solenoid (22) for fixing the valve arm (18) is installed at the front and rear of the valve arm (18). 1), and the rolling sensor (4) and solenoid (22) are electrically interlocked, and the rolling sensor (4) controls the traveling rotation of the vehicle body (1). When the valve arm (15) is tilted in the opposite direction, this tilt is detected and the valve arm (15) is fixed via the solenoid (22) and the float (2) is
The vertical movement of the running wheels (3) is stopped by the movement of the wheels (3).

When seedlings are loaded into the seedling tank (7) and the prime mover (5) is started to rotate each part, the running wheels (3) rotate and the running vehicle body (
1) will proceed. Seedlings are separated from the seedling outlet of the seedling tank (7), which moves laterally, by the seedling planting device (9), and transplanted into the area leveled by the float (2). During the transplanting operation, the pressure applied to the bottom of the float (2) changes due to the unevenness of the tiller in the paddy field, and this pressure causes the float (2) to
2) moves up and down, a hydraulic valve (17) interlocking with the valve arm (15) provided on this float (2) operates, and the operation of this hydraulic valve (17) causes the cylinder (1
The piston (18) of 6) expands and contracts back and forth, and the traveling wheel (3) that is linked to this piston (18) rises or descends, so that the traveling wheel (3) always moves against the unevenness of the tiller. Since the relationship with the float (2) is maintained appropriately, it is possible to always implant at a constant depth.

During work, when the traveling vehicle body (1) is tilted to a certain standard, the rolling sensor (4) detects this tilt, and the solenoid (22) interlocked with this rolling sensor (4) is activated. Then, the rotation of the valve arm (15) is fixed, and the hydraulic valve (17) is returned to the neutral position.
The vertical movement of the float (2) is also stopped, and the float (
2), the vertical movement of the running wheel (3) is stopped, and the lowering of the running wheel (3) when turning is stopped, and the running vehicle body (1) and the seedling planting device (9) are stopped. It travels and turns without being allowed to float any further. Therefore, when rolling, the center of gravity of the aircraft should not be raised any further to prevent instability. ), the control positions in the ascending and descending directions are fixed; however, it may be arranged such that only the controlling position in the descending direction is fixed, and the control in the ascending direction is freely performed.

Further, the rolling sensor (4) may also be used for the pair of left and right floats (2), (2), and in this case, the rolling sensor (4) can detect the vertical position difference between the left and right floats (2), (2). It may be configured to detect rolling of the aircraft by detecting.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a side view, FIG. 2 is a plan view, and FIG. 3 is an enlarged view of a portion thereof. In the figure, (1) is the running vehicle body, (2) is the float, and (3
) indicates a running wheel, and (4) indicates a rolling sensor. Patent applicant name: Iseki Agricultural Machinery Co., Ltd. Representative: Masataka Iseki

Claims (1)

[Claims] When the float (2) provided on the traveling vehicle body (1) slides into contact with the soil surface, the traveling wheels (3) are lowered when the float (2) moves upward above a predetermined level, and vice versa. When moving downward, the running wheels (3) are controlled and interlocked to raise them, and the float is controlled by a rolling sensor (4) that detects the left and right inclination of the running vehicle body (1).
A traveling device for a mobile agricultural machine according to (2), which is configured to be interlocked to fix the lowering control position of the traveling wheels (3).