JPS6028170Y2 - Rolling brake device for riding rice transplanter - Google Patents

Description

[Detailed description of the invention] The present invention relates to a rolling brake device for the planting work machine of a riding rice transplanter, and is particularly used when the sensitivity of the float ground pressure adjustment device is adjusted depending on the hardness or softness of the field. The present invention relates to a rolling brake device that adjusts the rolling brake of a planting machine.

In a riding rice transplanter, the lift mechanism installed at the rear of the traveling vehicle and the planting machine are connected via a rolling shaft, and the planting machine can move up and down and roll freely relative to the traveling vehicle. It has become.

If the field is hard, there is the inconvenience that the planting machine rolls too often, and when the rice transplanter rotates or runs on the road, the planting machine is raised to a high position far away from the field, making it difficult to carry out the planting work. Since there is an inconvenience that the machine rotates around the rolling axis and tilts, the tendency of the planting machine to return to the neutral position is given by a pair of rolling brake springs, and the elasticity of this spring is adjusted depending on the hardness and softness of the field. adjusted accordingly.

On the other hand, there is an inconvenience that the height of the planting area fluctuates as the ground pressure of the float of the planting machine against the topsoil changes due to the vertical movement and rocking of the traveling vehicle due to changes in the depth of the hardboard. A float ground pressure control device is provided to avoid this.

In other words, when the float moves up and down with respect to the topsoil and its ground pressure changes, this is detected by the detection member and the hydraulic system is driven, so that the planting operation is moved up and down so that the float ground pressure remains constant. That is, the height of the planted portion is controlled to be constant.

In addition to being affected by changes in the depth of the hard surface, planting equipment is also affected by the hardness and softness of the field. In hard fields, the float floats above the topsoil and frequently moves up and down due to the unevenness of the topsoil. Therefore, there is a problem in that the float ground pressure control device operates too much, so it is necessary to make the operation sensitivity of the float ground pressure less sensitive in hard fields, and to adjust the sensitivity more sensitively in the case of singing.

The sensitivity adjustment described above is performed by changing the elasticity of a sensitivity adjustment spring that is engaged with an elastic member that connects the float and the body, and is operated by a sensitivity adjustment lever.

Adjusting the rolling brake and adjusting the float ground pressure depending on the hardness and softness of the field would be troublesome and complicate the mechanism if done separately, so it is desirable to adjust both in one operation.

An object of the present invention is to provide a rolling brake device in which float ground pressure and rolling brake can be adjusted by operating a sensitivity adjustment lever.

The present invention will be explained below with reference to an embodiment shown in the drawings.

In FIG. 1, a rolling shaft 3 is provided at the free end of a lift mechanism 2 disposed at the rear of a traveling vehicle 1, and a planting machine 4 connected through this is connected to the traveling vehicle 1. It can move up and down and roll freely.

In FIG. 2, the rear part of the float 5 is pivotally connected to the body 6 of the planting work machine 4, and the front part is connected to the body 6 via a telescopic member 7 so as to be able to move up and down. When the float 5 moves up and down, it is detected by the detection member 8 and the switching valve 9 is switched.

The switching action of the switching valve 9 operates a hydraulic system (not shown) to rotate the lift mechanism 2 and move the planting machine 4 up and down.

When the ground pressure of the float 5 with respect to the topsoil changes in this way, the ground pressure of the float 5 is kept constant by the action of the float ground pressure adjustment device 11 which performs the above action, and the ground pressure of the float 5 is kept constant.
is maintained at a constant height relative to the topsoil.

The above description has been about adjusting the ground pressure of the float 5 by changing the depth of the hard ground, but even if the field is hard or soft, the float 5 floats and sinks in the field.

In a hard field, the float 5 floats up from the field, and in a soft field, it sinks too much, resulting in a change in the height of the planting section 12.

Therefore, according to the hardness and softness of the field, the float ground pressure adjustment device 1
It is necessary to adjust the sensitivity of 1.

One end of a sensitivity adjustment spring 13 is locked to one end of the telescopic member 7, and the other end is connected to the vehicle 1 via a wire 14.

It is connected to the sensitivity adjustment lever 15.

As shown in FIG. 3, one ends of a pair of rolling brake springs 16 and 17 are locked to the body 6 of the planting machine 4, and the locking portions are symmetrical with respect to the center line 18 of the body 6. It has become.

A wire 19 connected to the other ends of the rolling brake springs 16 and 17 is slidably held by a holding member 21 provided on the lift mechanism 2, and the other end of this wire 19 is connected to the adjustment lever. 15 is locked.

When the rice transplanter runs on hard fields, the sensitivity adjustment lever 15
By setting the sensitivity adjustment lever 1 to the 1 hard position,
3 becomes stronger, and the sensitivity of the float ground pressure adjusting device 11 is adjusted to be less sensitive.

At the same time, the elasticity of the rolling brake springs 16 and 17 becomes stronger, and the rolling brake applied to the aircraft body 6 becomes larger.

In a singing field, the sensitivity of the float ground pressure regulator is made more sensitive and the rolling brake is weakened by the opposite effect to the above.

In this way, by operating the single sensitivity adjustment lever 15, the ground pressure of the tuff float 5 and the rolling brake of the planting machine can be adjusted depending on the hardness or softness of the field.

According to the present invention, the sensitivity adjustment spring of the float ground pressure adjustment device of the planting work machine in a riding rice transplanter and the rolling brake spring of the planting work machine can be adjusted freely, and the lower back sensation adjustment lever can be operated only. Accordingly, the operating sensitivity of the float ground pressure adjusting device and the rolling brake force can be simultaneously adjusted depending on the hardness and softness of the field.

[Brief explanation of the drawing]

Fig. 1 is a side view showing an example of a riding rice transplanter, Fig. 2 is a side view of a rolling brake device of a planting machine showing an embodiment of the present invention, and Fig. 3 is a plan view of a rolling brake spring. be. 1... Traveling vehicle, 2... Lift mechanism, 3
...Rolling axis, 4 ... Planting work machine, 5 ... Float, 6 ... Aircraft, 7.
...Extensible member, 8...Detection member, 11.
...Float ground pressure adjustment device, 12...
Planting part, 13... Sensitivity adjustment spring, 14, 19.
...Wire, 15...Sensitivity adjustment lever 16.17...Rolling brake splash.

Claims (1)

[Scope of utility model registration request] This is a riding type vehicle in which the planting machine is connected to the free end of the lift mechanism installed at the rear of the traveling vehicle via a hip rolling shaft, allowing the planting machine to move up and down and roll freely relative to the machine body. In rice transplanters, a detection member detects the vertical movement of the float of the planting machine, and a hydraulic system is activated to move the planting machine up and down, thereby maintaining a constant height of the planting part relative to the topsoil. An adjustment device, a sensitivity adjustment spring that adjusts the operating sensitivity of the adjustment device, a sensitivity adjustment lever to which this sensitivity adjustment spring is connected by wire, and one end each of which is latched symmetrically to the center line of the body of the planting section. and a pair of tension rolling brake springs, the other end of which is attached to the end of the lift mechanism, for braking the rolling action of the planting machine, each end of the rolling brake spring being A rolling brake device for a riding type rice transplanter, characterized in that it is connected to the sensitivity adjustment lever via a wire and strongly applies the rolling brake when the sensitivity of the float ground pressure adjustment device becomes insensitive.