JPS59143510A - Wheel up-and-down movng 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 The present invention relates to a wheel vertical movement device for a rice transplanting device.

The present invention is a rice transplanting device equipped with a hydraulic switching valve for raising and lowering wheels, and the hydraulic switching valve can be operated manually or automatically.
It is designed to facilitate both rice planting work and road driving.

A traveling rice transplanting device moves back and forth by supporting the body with a float and rotating separately provided running wheels.These wheels need to rotate while in contact with the tiller (the bottom of the rice field). It moves up and down depending on the depth.

The vertical movement of the running wheels is performed by a hydraulic system, and therefore, a hydraulic switching valve is attached to the rice transplanting device.

In the present invention, the hydraulic switching valve can be switched manually using a hand lever or automatically using a sensing float.

The present invention includes a rice transplanting device equipped with a sensing float that detects the depth and shallowness of the rice field, and a hydraulic switching valve installed in the rice transplanting device.
The hydraulic switching valve and the sensing float are connected by a removable connector, and the hydraulic switching valve is configured to:
When the coupling device is disconnected, a wheel vertical movement device of the rice transplanting device connected to the hydraulic switching valve at hand so that y<- can also be switched by manual operation, and the rice transplanting device senses the depth and shallowness of the paddy field. A sensing float is attached, and the rice transplanting device is provided with a hydraulic switching valve, and the hydraulic switching valve and the sensing float are connected by a removable connecting device, and the hydraulic switching valve is configured to connect the connecting device. In a wheel vertical movement device for a rice transplanting device in which a hand lever is connected to the hydraulic switching valve so that it can be switched by manual operation when removed, a valve arm is pivotally attached to an upper position of the sensing float by a left-right shaft, The hydraulic switching valve is provided at a front position of the valve arm, and the valve arm and the hydraulic switching valve are connected by a rod,
The hydraulic switching valve is pulled forward by a spring, and the upper end of the rod is pivoted on the rotating end of the valve arm, and the lower end of the sensor rod is attached to the rear end of the sensing float. This device is configured as a wheel vertical movement device for a rice transplanting device that is removably attached to a rice transplanter.

To explain an embodiment of the present invention, reference numeral 1 denotes a fuselage, an engine 2 is mounted on the front end of the fuselage 1, and a transmission case 3 is provided below the engine 2. A front end of a power transmission case 4 is attached to the transmission case 3 so as to be movable up and down, and a running wheel 5 is pivotally attached to the rear end of the power transmission case 4.

The power transmission case 24 is a swing device that moves up and down depending on the depth and shallowness of the paddy field.

A walking control handle 6 is attached to the rear of the aircraft l,
A seedling tank 7 is attached to the front side of the walking steering handle 6. 8 is a float, and a sensing float 9 is attached to the front side of the float 8 and below the engine 2.

The front end of the sensing float 9 is pivotally attached to the lower end of the engine 2 by a shaft 10, and the center portion is a dogleg-shaped link 1.
1 to the lower end of the engine 2, and the rear end moves up and down about the shaft 10.

A valve arm 12, which is L-shaped when viewed from the side, is pivotally attached to a position above the rear end of the sensing float 9 by a left-right shaft 13. A hydraulic switching valve 14 is provided at a forward position of the valve arm 12, and the upper end of its operating piece 15 and the upper end of one of the projecting pieces 16 of the valve arm 12 are connected by a rod 17.

A spring 18 is provided at the front side of the hydraulic switching valve 14, and the rear end of the spring 18 is connected to the actuating piece 15.
The vehicle is constantly towed backwards (downwards). The valve arm 12
The front end of a wire 19 is locked to the protruding piece 16, and the rear end of the wire 19 is connected to a hand lever 20 attached to the walking steering handle 6. The upper end of a sensor rod 22 is pivotally fixed to the other projecting piece 21 of the valve arm 12, and the sensor rod 22 is provided so as to be rotatable rearward from a substantially vertical position. An engagement fitting 23 is provided on the upper surface of the rear end of the sensing float 9, and engages with the engagement fitting 23 when the sensor rod 22 rotates forward.

24 is a spring.

Reference numeral 25 indicates a planting clutch, and 26 indicates a speed change clutch for switching between high speed and low speed, which is connected to the wire 19. Further, 27 is a hydraulic cylinder, 28 is a hydraulic piston, and 29 is a link mechanism.

Next, we will discuss the effect.

With the above configuration, when the present invention moves forward while holding the walking control handle 6, the entire body sinks in deep paddy fields, so the sensing float 9 is floated and the rear end is centered around the axis 10. moves upward, moves the sensor rod 22 upward and rotates the valve arm 12 counterclockwise, and the rod 17
The actuating piece 15 is rotated counterclockwise to switch to the lowering direction, the hydraulic piston 28 of the hydraulic cylinder 27 is extended, the power transmission case 4 is moved downward via the link mechanism 29, and the running wheels 5 are moved downward. . In the case of a shallow paddy field, the sensing float 9 moves downward, the sensor rod 22 moves downward, the valve arm 12 is rotated clockwise, the hydraulic switching valve 14 is switched upward via the rod 17, and the hydraulic piston 28 is retracted. to move the wheel upward.

Then, the sensor rod 22 is rotated against the elasticity of the spring 24 from the position shown by the solid line to the position shown by the phantom line in FIG. The valve arm 12 can then be rotated directly via the wire 19, and therefore the hydraulic switching valve 14 can be switched manually.

The present invention is as described above, and a rice transplanting device is equipped with a sensing float 9 for sensing the depth and shallowness of a paddy field, and a hydraulic switching valve 14 is installed on the rice transplanting device, and the hydraulic switching valve 14 and the sensing float 9 are connected. The rice-transplanting apparatus is connected to the hydraulic switching valve 14 by a removable connector, and a hand lever 20 is connected to the hydraulic switching valve 14 so that the hydraulic switching valve 14 can also be switched by manual operation when the connector is disconnected. A sensing float 9 for sensing the depth of the paddy field is attached to the wheel vertical movement device and the rice transplanting device, and a hydraulic switching valve 14 is provided to the rice transplanting device, and the hydraulic switching valve 14
and the sensing float 9 are connected by a removable connector, and the hydraulic pressure switching/help 14 is connected to the hydraulic pressure switching valve 14 so that it can also be switched by manual operation when the connector is disconnected. In a wheel vertical movement device for a rice transplanting device in which a rice transplanter is connected to a vehicle at hand / A hydraulic switching valve 14 is provided, and the /<lube arm 12 and the hydraulic switching valve 14 are connected by a rod 17. The hydraulic switching valve 14 is pulled forward by a spring 18, and the rotation end of the valve arm 12 is pulled forward by a spring 18. The upper end of the sensor rod 22 is attached to the upper end of the sensor rod 22, and the lower end of the sensor rod 22 is removably attached to the rear end of the sensing float 9. When the valve arm 12 is connected to the sensing float 9 by rotating it to the position shown by the solid line in Figure 4, the wheels will automatically move up and down according to the depth of the paddy field, allowing rice planting work to be done under automatic control. Furthermore, when the sensor rod 22 is removed from the sensing float 9 as shown by the phantom line in FIG. 4, the hydraulic pressure switching valve 14 is disconnected from the sensing float 9 and can be operated manually. Therefore, it is suitable for driving on the road.

[Brief explanation of drawings]

Figure 1 is a side view of a rice transplanting device equipped with the device of the present invention;
The figure is a plan view of the same, and FIGS. 3 and 4 are views of the main parts of each embodiment. Description of code Aircraft i, engine 2, mission case 3, power transmission case 4, running wheels 5, walking steering handle 6, seedling tank 7, float 8, sensing float 9, shaft 10, dogleg-shaped link 11, Valve arm 12, shaft 13, hydraulic switching valve 14, operating piece 15, protruding piece 16, rod 17, spring 18
, wire 19, hand lever 20, protrusion 21, sensor rod 22, engaging metal fitting 23, spring 24, planting latch 25, transmission flange 26, hydraulic cylinder 27, hydraulic piston 28, link mechanism 29° Patent applicant Iseki Agricultural Machinery outside corporation name

Claims (2)

[Claims] (1) Attach a sensing float to the rice transplanting device to sense the depth and shallowness of the rice field, and also provide a hydraulic switching valve to the rice transplanting device, and connect the hydraulic switching valve and the sensing float with a removable connector. . A wheel vertical movement device for a rice transplanting device, wherein a hand lever is connected to the hydraulic switching valve so that the hydraulic switching valve can also be switched by manual operation when the coupling tool is disconnected. (2) Attaching a sensing float to the rice transplanting device to sense the depth and shallowness of the rice field, and also providing a hydraulic switching valve to the rice transplanting device, and connecting the hydraulic switching valve and the sensing float with a removable connector, The hydraulic switching valve is connected to the upper part of the sensing float in a wheel vertical movement device of a rice transplanting device, which is connected to the hydraulic switching valve so that it can also be switched by manual operation when the coupling device is disconnected. A valve arm is pivotally attached to the position by a left-right axis, the hydraulic switching valve is provided at a position in front of the valve arm, and the valve arm and the hydraulic switching valve are connected by a rod, and ifj the hydraulic switching valve is connected to a spring. The rotating end of the valve arm has an upper end of a sensor rod as an axis, and the lower end of the sensor rod is attached to the rear end of the sensing float in a removable manner. motion device.