JPH0465641B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a tillage machine configured to enable top-cutting by arranging residual tillage processing claws that are rotated around an outwardly downwardly inclined axis on both sides of a rotary case. .

[Conventional technology]

As shown in FIG.
The point of closest approach P of the 10 tip trajectories S and S is positioned directly below the rotary axis Y to ensure that there is no residual plowing directly below the rotary case.
That is, the tip trajectories S and S of the residual tillage processing claws are viewed from the front V.

[Problem that the invention seeks to solve]

Therefore, when plowing and tilling with a hot plow cutter is performed in a field with a lot of leftover leaves, such as a sugarcane cultivation field, the leftover leaves and soil are rolled up by the leftover processing claws, and they are rolled up to the front of the rotary case. This caused not only an obstruction to tilling work but also an extra load on the drive system.

The present invention has focused on the above-mentioned phenomenon, and aims to reduce as much as possible the accumulation of residual leaves and the like on the rotary case during top cutting, and to prevent a decrease in the working efficiency of the tiller.

[Means for solving problems]

The characteristic configuration of the present invention to achieve the above object is that the closest point of the tip trajectory of the residual tillage processing claw is set to the front side of the position directly below the rotary axis, and its functions and effects are as follows. It is as follows.

[Effect]

The remaining leaves that adhere to and accumulate on the front of the rotary case are limited to those that have entered the space between the tip trajectories of the left and right residual tillage processing claws, so by narrowing the entrance to that space, the remaining leaves can be removed. This can reduce the amount of leaves that get into the soil. That is, by setting the point of closest approach ahead of the position directly below the rotary axis, the tip trajectory changes from a V-shape to an X-shape when viewed from the front, and the entrance to the space becomes a V-shape above the point of closest approach. Because it is a partial space, it is narrower than a conventional entrance, and fewer leaves enter the space. Although the above configuration may cause residual tillage to occur directly under the rotary case, most of it can be removed by appropriately setting the shape and arrangement of the residual tillage processing claws, and there is no problem in practical use.

〔Effect of the invention〕

As a result, it has become possible to reduce as much as possible the remaining leaves that adhere to and accumulate on the rotary case during top cutting, thereby preventing a decrease in the working efficiency of the tiller.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

As shown in FIG. 2, a rotary tiller B is connected to the rear of a traveling body A having a pair of left and right traveling wheels 1, 1, an engine 2, a transmission case 3, etc. via a transmission case 4 and an extension hitch 5. These are connected in series to form a walking power tiller.

The tilling device B includes a rotary case 7 in a substantially vertical position with a claw shaft 6 horizontally supported at the lower end, a tilling claw 8 for upper cutting attached to the claw shaft 6,
On both sides of the rotary case 7, there are provided an inclined pawl shaft 9 supported to rotate around an outwardly downwardly inclined axis X, and residual tillage processing pawls 10, 10 attached to this.

The reason why the extension hitch 5 is used to connect the tilling device B to the traveling machine body A is that by increasing the distance between them, the remaining leaves that are rolled up during top tilling can easily fall to the ground. This is for the purpose of

The remaining tillage processing claws 10, 10 are provided so that the closest point P of their tip trajectories S, S is located forward of the rotary axis Y and slightly below the ground. Therefore, when viewed from the front, it is not a V-shape as shown in FIG. 3, but an X-shape with the intersection point shifted upward as shown in FIG.

In the figure, 11 is a tail wheel for adjusting the plowing depth, and 12 is a rotary cover.

[Another example]

In the above embodiment, since the rotary tilling device is used in which the point of closest approach P is located directly below the rotary axis Y when the rotary case 7 is in the forward tilted position, the rotary tiller is used to set the point of closest approach P forward. Although the posture of the case 7 is changed vertically, when configuring a dedicated rotary case 7, it is not necessarily necessary to make the rotary case 7 vertical. It is also possible to modify the inclined claw shaft 9 so that the point of closest approach P of the trajectories S and S is located forward from directly below the rotary axis Y.

[Brief explanation of the drawing]

The drawings show an embodiment of the tiller according to the present invention, in which FIG. 1 is a front view of a tilling section, FIG. 2 is an overall side view, and FIG. 3 is a front view of a conventional tilling section. 7... Rotary case, 10... Remaining tillage processing claw, P... Point of closest approach, X... Inclined axis, Y... Rotary axis, S... Tip trajectory.

Claims (1)

[Claims] 1. In a tillage machine configured to enable top-cutting by arranging residual tillage processing claws 10 that are rotated around the outwardly downwardly inclined axis X on both sides of the rotary case 7,
A tiller in which the closest point P of the tip trajectories S and S of the residual tillage processing claws 10 is set to the front side of the position directly below the rotary axis Y.