JPS62198315A - Propelling apparatus of rice planter - 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] Industrial applications The present invention relates to a traveling device for a ^°1 transplanter.

Conventional technology A pair of left and right 111 wheels and a sensor float are movably installed on the vehicle body, and between the opposing wheels and the sensor float, the sensor float detects changes in the ground pressure, and the wheel The structure is such that the vehicle body is maintained in a horizontal tree-like position by lowering the vehicle body.

Problems to be Solved by the Invention In a traveling device that shifts and lowers heavy wheels by detecting changes in ground pressure using sensor flow 1, and maintains and controls the left and right water moth-like attitude of the vehicle body, it is difficult to maintain hard-1. - In fields where the soil and tiller are very uneven, or in fields with a lot of foreign matter such as straw waste, the left and right sensor floats may be too sensitive. , the vehicle may malfunction, the vehicle may shake violently from side to side, or the vehicle may become unstable.

Means for Solving the Problems This invention detects changes in the ground pressure on the soil surface and adjusts the corresponding middle wheels (1) and (2) to the ground. 1. A pair of left and right sensor floats (4) that control the body (3) to maintain a horizontal posture in the left and right direction. A bacterial inoculation comprising a connecting spring (7) that can freely adjust the connecting force of (5). This is the configuration of the machine's running device.

Effect of the Invention While the vehicle body (3) is traveling by driving the left and right wheels (1) and (2), the Iη planting device performs the seedling planting action. The wheels (1) and (2) run and rotate while being in contact with the plowing platform below the soil surface, and the sensor floats (4 and 5) slide on the soil surface while moving between these wheels (1) and the sensor float. (
4) By (5) etc., the vehicle body (3) runs while being supported on the field soil, and the wheels (1) and (2) rotate at 1111.
When the depth of one part changes, the sensor float (4) (5)
Detects changes in ground pressure when sliding with the ring.

When the L soil plow gets deeper, the vehicle body (3) tries to sink,
The ground contact pressure acting on the sensor floats (4) and (5) with the soil surface increases, which causes the wheels (1) and (2) to move closer to the vehicle body (3).
The vehicle body (3) is controlled to descend down relative to the ground, preventing the vehicle body (3) from sinking, and the vehicle body (3) is controlled to lower the upper ring by adjusting the tiller support by raising and lowering the wheels (1) and (2). It moves while maintaining a fixed position.

When the soil tiller becomes shallow, the vehicle body (3) is pushed through the wheels (1) and (2), and the sensor float (
4) The ground pressure against the -L ring in (5) is lowered, which controls the wheels (1) and (2) to rise relative to the vehicle body (3), increasing the height of the vehicle body (3) from the soil surface. The height is maintained at a constant position.

If there is a difference in the plow depth between the left and right wheels (1) and (2) in contact with pressure, the vehicle body (3) will tend to tilt to the left or right, but this is the standard! sensor flow on the deeper side or shallower side with respect to the area of lli) (4), (5),
Between the wheels (1) and (2) on the opposite side, the wheels (1) and (2) as shown in 1- are installed independently on the left and right, respectively.
The horizontal position of the vehicle body (3) is maintained so as to prevent the vehicle body (3) from tilting to the left or right, and so-called rolling control is performed.

The vertical movement of the pair of left and right sensor floats (4) and (5) is performed by the pressure of the connecting spring (7).
) and (5) are adjusted.

In soils where the soil is extremely uneven, or where there are many foreign substances such as straw waste, the pressure of this connection spring (7) should be adjusted strongly to increase the connection force of the sensor floats (4) and (5). This increases the integration of vertical operation. As a result, the sensor floats (4) and (5) are driven upward under a coupling force that integrates the left and right pairs, detecting changes in ground pressure, and moving the left and right wheels (1) and (2) upward. control the elevation. For this reason, the detection of changes in the ground pressure of the sensor floats (4) and (5) becomes insensitive, and the elevation control and rolling control become dull.

Also, at the edge of a ridge or under soft soil conditions, the connection spring (
Adjust the pressure of sensor float (4) (5) weakly.
) is weakened to facilitate independent operation of the left and right sides, the sensor floats (4) and (5) will be more sensitive in detecting changes in ground pressure, making it easier to perform lowering control and rolling control.

Effect of the invention In this way, the J! of the connecting spring (7)! By adjusting the connection force between the left and right sensor floats (4) and (5), the -L ring portions of the sensor floats (4) and (5) can be adjusted depending on the soil conditions and running conditions in which the seedlings are planted. By changing the sensitivity of detecting changes in ground pressure against the vehicle, it is possible to perform accurate running through rll, descent control, and rolling control of the Ilt wheels.

Invention of Embodiments The connection spring (7) is connected to a pair of left and right sensor floats (
When connecting between sensor floats (4) and (5), the sensor floats (4) and (5) are directly connected by a connecting spring (7), and this connecting force is adjusted by adjusting the pressure of the connecting spring (7). Therefore, adjustment can be easily performed accurately and the configuration is simple.

In addition, connect the connection spring (7) with the left and right sensor floats (
4) Hydraulic control valve (12) operated by (5)
(13), when the sensor floats (4) and (5) are operated, the hydraulic control valves (12) and (13) are linked to operate the ticket.
', 11 (when controlling the elevation of the wheels (1) and (2), the pressure of this connection spring (7) is adjusted, and the operating sensitivity of these left and right hydraulic control valves (12) and (13) is changed, It can be adjusted according to driving soil conditions, etc. Since the connection spring (7) is provided between the hydraulic control valves (12) (+3), the configuration is simple.

Embodiment In the illustrated example, the front end of a wheel transmission case (14) on which the wheels (1) and (2) are mounted is provided on both left and right sides of the front part of the vehicle body (3) so as to be movable up and down, and each wheel ( 1) The vehicle (15) of (2) is connected to the transmission mechanism inside the vehicle body (3) by the prime mover (18) mounted on the vehicle body (3). 1 (Wheel transmission case (
Transmission is configured through a transmission mechanism etc. in 10. A piston (17) is connected to each wheel transmission case (10), and is configured to extend and contract by a hydraulic cylinder (18). Also, a pair of left and right sensor floats are installed at the lower front of the vehicle body (3). (4) and (5) are pivoted (19) so that the front end can freely move downward, so that it can move upward in contact with the soil surface.

Regarding the +iA transmission mechanism, power is transmitted by a gear mechanism between the human power shaft (42), which is transmitted from the prime mover (16) via a belt tension clutch, the speed change shaft (43), and the wheel transmission shaft (44). A mechanism (45) is provided, and the speed change shaft (43) is a traveling speed change type which can change speed between high speed and low speed by switching the clutch between the high speed side and the low speed side.
! 1 (10). On the small wheel transmission shaft (40), a running clutch (9) is provided at both left and right ends to ensure transmission of power to each axle (15), and also meshes with the gear on the transmission shaft (43). ■ A forward switching device 2!1 (11) is provided that provides single-speed transmission and also engages with the gear on the input shaft (42) to perform reverse transmission. Also, from the variable speed shaft (43) to the seedling planting device (28), etc. It has a transmission structure.

- Hydraulic pump (20) (2
1) are provided as a pair on both the left and right sides of a hydraulic tank (22), and are rotated via a drive shaft (23) by transmission from a prime mover (1B). Each hydraulic pump (20) (21)
(18) supplying hydraulic pressure to the hydraulic cylinder (18);

A vJO valve (20) is provided for discharging air. 5) and the wheels (1), (2), the sensor floats (4), (5) are set at a constant value 1-
A pair of left and right control valves are operated to lower the wheels (1) and (2) when moving upward beyond the downward movement region, and to raise the wheels (1) and (2) when moving downward. (12)
It is composed of (13).

At the rear of the vehicle body (3), there is an operating handle (28), a tuck (27) that accommodates the ui and performs +W feeding while reciprocating in the left and right direction, and a bacteria supplied from the seedling tank (27). Seedling planting device that plants seedlings on the soil surface while separating them (2)
This i? + Provide a float (29) to level the soil surface at the planting position.

(30) is the supply 1゛1°1 installed at the rear end of the bonnet.
It is a mounting table. In addition, the seedling planting device (28)
1B). This 1° Ilr implantation device (28) and i'jl Tough Ri (27)
) No power transmission mechanism Niha, a power transmission person! , +1 is provided.

In Figures 1 to 4, the left and right sensor floats (4
) and (5) are connected by a connecting spring (7), and this connecting spring (
Connect one end of wire (31) to wire (31).
1) is connected to a lever (32) provided on the operation handle (2B), and by operating this lever (32), the pressure of the connection spring (7) is increased by 31, and the sensor float (4) (5
) is configured so that the connecting force between them can be adjusted. (33) is an outer wire whose tip is locked to the sensor float (5) on the opposite side to the sensor float (4) directly connected to the connection spring (7). - A locking part for locking the operation position of this lever (32) is provided in the rotation range of (32), and from locking i% (34) at the position where the connection spring (7) is most strongly tensioned. The locking portion (35) can be adjusted in stages up to the position where the tension force of the connection spring (7) is not applied.

In Figures 5 and 6, the left and right hydraulic pumps (20)
(21)! /J8 valve (24), (24
) into the hydraulic tank (22).
A shifter arm (3) is provided with a connecting spring (7) between 38) and (3G), and a spring locking piece (37) that locks one end of the connecting spring (7) can be rotated by a wire (31).
8) by moving the switching valve (24)
, (20), each sensor float (4
) (5) to operate the switching valve (24).
) This is to adjust the sensitivity of (24). lever(
32) is the locking part (3) at the position where the connection spring (7) is tensioned.
In step 4), the planting clutch (8) of the planting device (28) is disengaged, and the 1U section (35), which loosens the tension of the connection spring (7), releases the planting clutch (8) of the planting device (28). Planting clutch (
8), and connect the planting clutch wire (
39).

[Brief explanation of drawings]

The figures show an embodiment of the present invention, in which Fig. 1 is a cutaway perspective view, Fig. 2 is a plan view of a part, Fig. 3 is a diagram of a part of the operating mechanism, and Fig. 4 is a transmission diagram. Mechanism diagram. FIG. 5 is an enlarged sectional view of the - section, and FIG. 6 is a diagram of the operating mechanism of another embodiment. In the figure, symbols (1) and (2) are wheels, (3) is the vehicle body, and (4)
(5) is the sensor float, (7) is the connection spring, (+2)
(13) indicates a hydraulic control valve.

Claims (1)

[Claims] 1. A pair of left and right wheels that detect changes in ground pressure on the soil surface and control the wheels (1) and (2) on the corresponding side to raise and lower to maintain the vehicle body (3) in a horizontal position in the left and right directions. A traveling device for a seedling planting machine, which is provided with a connecting spring (7) that can freely adjust the connecting force of the sensor floats (4) and (5). 2. The traveling device for a seedling planting machine according to claim 1, wherein the connection spring (7) is connected between a pair of left and right sensor floats (4) and (5). 3 The above connection spring (1) connects the left and right sensor floats (4
)(5), the hydraulic control valve (12)(
13) A traveling device for a seedling planting machine according to claim 1, which is connected between the two.