JPH0642406Y2 - Rotary Tillage Soil Equipment - Google Patents

Description

[Detailed description of the device]

[Industrial applications]

The present invention relates to a rotary tilling and crushing device provided in a rotary cultivating device and having a crushing function.

[Prior art]

As a conventionally well-known rotary tiller, a tiller claw is attached to a tiller shaft at a predetermined interval, a tiller rotor that rotates in an upcut direction, a shield cover that covers the upper side of the tiller rotor, and a tip portion at a rear end portion of the cover. With an apron
Japanese Utility Model Laid-Open No. 56-97904 discloses a crushed soil rake provided between the cultivating rotor, the shield cover and the apron. In this prior art, when the soil cultivated by the tilling rotor is thrown toward the apron between the tilling rotor and the shield cover, that is, above the tilling rotor, it collides with the crushed soil rake, and Large ones fall inside the crushed soil rake, and small lumps of crushed soil crushed by the crushed soil rake fall on top of this, making the soil structure after plowing ideal for coarseness at the bottom and fineness at the top. It turns out. However, in the up-cut cultivation method, since the plowing rotor rotates in the direction opposite to the advancing direction of the airframe, the horsepower required is larger than that in the down-cut cultivation method, and the vibration of the airframe becomes severe.

[Problems to be solved by the device]

Therefore, a rotary cultivating device is proposed in which the cultivating rotor is rotated in the downcut direction to improve the crushing function, but in this case, the soil cultivated by the cultivating rotor is directly crushed into a crushed soil rake and an apron. Since the flow of cultivated soil does not follow the shape of the crushed soil rake because it is thrown towards the ground, the cultivated soil can be crushed to some extent, but the soil particles on the surface of the field after cultivating are not uniform, resulting in unevenness. There was a problem that the condition was not good. In addition, in order to solve this problem, it has been proposed to provide a collision plate at the lower end of the crushed soil rake, but in this case, it is possible to perform uniform crushing of soil particles compared to the case without a collision plate. However, when there are many straw culms and weeds in the cultivated field, they are caught in the lower part of the lake and cannot be buried in the cultivated soil, and they are released to the field surface and the surface finish becomes poor. .

[Means for Solving the Problems]

The present invention has been made to solve the above problems,
The tiller claws are attached to the tiller shaft at predetermined intervals, and the tiller rotor 2 rotates in the down-cut direction, the shield cover 4 covering the upper portion of the tiller rotor 2, and the apron 5 having the tip end pivotally attached to the rear end portion of the shield cover 4. In the rotary cultivating device having a crushed soil rake 7 having a front end fixed to the rear end of the shield cover 4 between the cultivated rotor 2 and the apron 5, the crushed soil rake 7 and the cultivating rotor 2 are In the meantime, a horizontally long, rod-shaped separating body 9 that collides with cultivated soil and is divided into upper and lower parts is fixed between the supporting arms 8 and 8 fixed to both side frames of the main body 1 and laterally mounted.

[Action]

With this configuration, the rotary tillage / crushing soil device of the present invention performs a certain amount of crushing action by the separator itself, and a large lump of soil collides with the separator to drop it.
Small soil blocks pass over the separator and are sent to a crushed soil rake to be crushed, so that the lower layer is coarse and the upper layer is fine. In addition, even if there are straw culms and weeds in the cultivated field, they are dropped by the separator, or even if they are thrown up to the crushed soil lake, they fall along the crushed soil lake and the fine soil crushed on it Will fall and be buried, and the surface finish will be good.

Embodiments Embodiments of the present invention will be specifically described below with reference to the drawings. In FIG. 1, reference numeral 1 is a main body of a rotary tilling and earthing apparatus, which is mounted on a rear portion of a tractor (not shown) so as to be able to move up and down via a three-point link mechanism and transmits power from a PTO shaft of the tractor. It will be done in this main body 1,
A cultivating rotor 2 in which a cultivating claw 3 is attached to a cultivating shaft (not shown) at a predetermined interval is attached so as to rotate in a downcut direction. The shield cover 4 is located above the plowing rotor 2.
It is covered with an apron 5 at the rear end of the shield cover 4.
Is pivoted at its tip end through a hinge portion 6 so as to be vertically swingable. All of the above configurations are the same as those conventionally known. The rear end of the shield cover 4 is located between the tilling rotor 2 and the apron 5, and the front end of the crushed soil rake 7 is fixed to the rear end of the apron 5, which is about half the length of the apron 5. The length is set to the free end. Between the crushed soil rake 7 and the cultivating rotor 2, a hollow, horizontally long, rod-shaped separator 9 having a rectangular cross section is fixed to the lower end of a support arm 8 having upper ends fixed to both side frames of the main body 1. ， Has been crossed. This separating body 9 collides with soil plowed by the cultivating rotor 2 and thrown rearward, causing large ones of the clods to fall directly below, and small clods passing above the separating body 9 to crush the soil. It acts to let the rake 7 throw it. As shown in FIG. 2, the separator 9 may have a streamline cross-sectional shape, or may have another shape. When the work is carried out by the rotary cultivating soil device constructed as described above, as shown in FIG. 3, the soil cultivated by the cultivating rotor 2 is thrown rearward, and the one colliding with the separating body 9 is Some of the large lumps of soil fell directly under the shock, and some of them over the separating body 9 reached the crushed soil rake 7 and collided and crushed. Those falling downward and passing through the crushed soil rake 7 are thrown to the apron 5 side and leveled by the apron 5. Therefore, the soil after cultivating is ideally cultivated and crushed, in which the soil mass is larger in the lower layer and gradually becomes finer in the upper layer. Further, even if there are many straw culms and weeds in the cultivated field, they do not get caught in the crushed soil rake 7, so they can be buried in the cultivated soil and do not appear on the surface. When the separator 9 has the streamlined shape shown in FIG. 2, it is possible to reduce adhesion of soil to the collision surface.

[Effect of device]

As described above, according to the rotary tillage soil apparatus of the present invention, the downcut tilling rotor 2 and the apron 5 are used.
A crushed soil rake 7 having a front end fixed to the rear end of the shield cover 4 is provided between the crushed soil rake 7 and the cultivating rotor 2.
A supporting arm 8 having a horizontally long, rod-shaped separating body 9 which is divided into upper and lower portions by colliding with cultivated soil, is fixed to both side frames of the main body 1,
Since it was fixed between 8 and laid horizontally, the soil cultivated by the plowing rotor 2 and released to the rear collided with the separator 9 and part of it was crushed. Those that have fallen into the ground and passed through the separator 9 collide with the crushed soil rake 7 to be crushed, and among them, the large ones of the clods have dropped, and the fine soil that has passed through the crushed soil rake 7 has dropped onto the apron 5. It is possible to perform ideal cultivating and crushing work where the soil after leveling and plowing is coarse on the lower side and fine on the upper side. Further, since the crushed soil rake 7 is open at the lower end side, even when there are many straw culms, weeds, etc. in the cultivated field, they are not buried in the cultivated soil and exposed to the surface of the cultivated soil.

[Brief description of drawings]

FIG. 1 is a partial vertical sectional side view of a rotary tillage apparatus according to an embodiment of the present invention, FIG. 2 is a vertical sectional side view showing another embodiment of a separating body, and FIG. 3 is a side sectional view showing a working state. Is. 1 ... Main body, 2 ... Tilling rotor, 3 ... Tilling claw, 4 ...
Shield cover, 5 ... Apron, 6 ... Hinge part, 7
…… Crushed rake, 8 …… Support arm, 9 …… Separator.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Shou 55-88602 (JP, U) Seki 56-173006 (JP, U) Seki 58-103804 (JP, U) Seki 49- 31618 (JP, Y1)

Claims (1)

[Scope of utility model registration request] 1. A tilling rotor (2) which is provided with tilling claws at predetermined intervals on a tilling shaft and rotates in a down-cut direction, a shield cover (4) covering the upper side of the tilling rotor (2), and a shield cover (4). A rotary tiller having an apron (5) having a front end pivotally attached to a rear end of the shield cover (4) between the tiller rotor (2) and the apron (5). A crushed soil rake (7) having a fixed slab is disposed, and a horizontally long, rod-shaped separating body (9) is provided between the crushed soil rake (7) and the cultivating rotor (2) to collide with the cultivated soil and separate into upper and lower parts.
Support arms (8,8) fixed to both side frames of the main body (1)
A rotary cultivating soil device characterized by being fixed and laterally installed between.