JPS6133845Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field of the Invention The present invention relates to a tilling and crushing machine, and mainly relates to a tiller which plows soil by rotating a rotary working body in a so-called upcut direction.

Conventional technology and its problems In a tiller that cultivates soil by rotating its rotary working body in the up-cutting direction, if coarse organic matter such as medicines or crop residues is scattered in the above-ground area, the tillage process may be interrupted. Accordingly, there is a strong tendency for the coarse organic matter to push forward and gather together, and in such a case, the coarse organic matter will become clogged between the rotary work body and the cover body, eventually causing a situation where work is impossible. There are drawbacks.

In addition, when there are irregularities in the above-ground part, coarse organic matter scattered in low places such as depressions is pushed out and released forward, which causes the same problem as described above.

Purpose of the invention This invention sequentially strokes the coarse organic matter located in front of the work progress of the rotary work body to make it easy to lift and prevent the coarse organic matter from being pushed forward. The purpose of this is to facilitate the implementation of the following.

Structure of the invention The present invention comprises a machine frame, a rotary work body mounted on the machine frame so as to be rotatable in the up-cut direction, a cover body attached to the machine frame and covering the upper part of the rotary work body, and the above-mentioned rotary work body. The rotary work body is partially supported by the front part, and the upper earth protection body part is disposed inside the cover body, and the lower sliding part is made of elastic material that extends against the ground so as to stroke coarse organic matter. It is characterized by comprising an earth-proof cover consisting of a body.

Embodiment of the invention Next, an embodiment of the invention will be described as shown in the accompanying drawings.

Reference numeral 1 denotes a machine frame, and a transmission 3 having an input shaft 2 is attached to the middle part of the machine frame 1. Connecting parts 4a and 4b connected to the three-point suspension mechanism of the tractor are connected to the front from both sides of the transmission 3. A connecting mechanism 4 having a structure is provided in a protruding manner. Further, the upper part of a chain case 6 is fixed to one end of the machine frame 1 via a mounting plate 5, and the upper part of a bracket 7 is fixed to the other end of the machine frame 1. A tilling shaft 8 is rotatably mounted between the lower end of the chain case 6, and tilling claws 9 are protruded radially from the circumferential side of the tilling shaft 8 in the axial direction via a flange 8a. Each tilling claw 9 and tilling shaft 8 constitute a rotary work body 10. Further, one end of the tilling shaft 8 is provided protruding into the lower part of the chain case 6, and the output shaft 11 of the transmission 3 is provided in the upper part of the chain case 6.
The outer end of the output shaft 11 and the tilling shaft 8 are protruded.
A chain 12 is suspended through sprockets installed between the two.

Also, the mounting plate 5 to which the chain case 6 is attached
A cover body 13 covering the upper part of the rotary work body 10 is attached between the bracket 7 and the rotary work body 10, and a leveling plate 15 is attached to the rear edge of the cover body 13 via a hinge 14 so as to be movable up and down. There is.
The upper part of the lifting rod 16, whose lower end is rotatably attached to both sides of the leveling plate 15, is inserted into a support plate 17 projecting rearward from the machine frame 1 so as to be vertically movable. At the top and bottom of the above lifting rod 1
6 is wound with a coil spring 18. Further, at the rear of the rotary work body 10, a horizontal shaft 19 is supported on the inner rear end of the cover body 13, and a screen 20 for controlling soil released from the rotary work body 10 is rotatable on this horizontal shaft 19. It is installed vertically. As shown in FIG.
The upper end portions of a large number of elongated triangular comb teeth pieces 22 whose lower ends are formed at acute angles in the axial direction of the pipe body 21 are integrally arranged in parallel, and the upper pipe body is placed between each of the comb teeth pieces 22. The 21 side is extremely narrow, and the lower open end side has a large number of widely spaced discharge ports 23.

Next, a support shaft 25 is horizontally suspended midway in front of the chain case 6 and the bracket 7 via an arm 24, and a mounting piece 26 of this support shaft 25 is covered with an elastic body such as a rubber plate to prevent soil from adhering to the support shaft 25. The middle part of the earth protection cover 27 is fixed with screws 28, and the upper earth protection body part 29 of this earth protection cover 27 is disposed inside the cover body 13, and the lower sliding piece part 30 extends with respect to the ground, and during work, this sliding part 30 is elastically deformed due to its elasticity and curved toward the rear in the traveling direction to remove the coarse organic matter A.
I'm starting to caress.

In this structure, the connecting parts 4a and 4b of the connecting mechanism 4 of the machine frame 1 are connected to the connecting parts of the three-point suspension mechanism of the tractor, and the input shaft 2 of the transmission 3 is connected to the output shaft of the tractor. are connected via a universal joint.

Next, the tractor is driven to pull the tiller and crusher, and the transmission 3 is driven via the input shaft 2, and the rotary work body 10 is rotated clockwise in the figure via the output shaft 11 and chain 12 of the transmission 3. Interlocking drive in the up cut direction. As a result, the field is tilled by each tilling claw 9 of the rotary work body 10, and this tilled soil is lifted up as each tilling claw 9 rotates and moves inside the soil protection cover 27 and cover body 13. It is carried toward the rear and thrown against a screen 20 at the rear, and this screen 20 controls the further discharge of the tilled soil to the rear.

In this case, in the forward part of the plowing work by the rotary work body 10, as the work progresses, the sliding part 30 of the soil protection cover 27 curves toward the rear part in the direction of movement, and the straw on the ground part B is removed. The coarse organic matter A, such as the remains of crops, is easily lifted while stroking it without being pushed forward, in preparation for tilling and crushing the soil by the rotary work unit 10. Therefore, this coarse organic matter A is carried backwards together with the tilled soil. It is released against the screen 20. In addition, if the ground part B has unevenness, the sliding part 30
can be elastically deformed in accordance with this, caressing and easily lifting the coarse organic matter A scattered on the uneven parts in preparation for tilling and crushing by the rotary working body 10. Therefore, in this case as well, the coarse organic matter The organic matter A is carried backwards together with the tilled soil and thrown against the screen 20. In addition, since the screen 20 has discharge ports 23 of different sizes in the vertical direction in each comb tooth piece 22, soil clods a and coarse organic matter larger than the discharge ports 23 are released against the screen 20 and are not destroyed. The soil A is guided by the comb tooth piece 22 and falls downward, and this large soil mass a forms the lower layer together with the coarse organic matter A, and the soil mass b flowing out through the maximum diameter part at the bottom of the discharge port 23 forms the lower layer. The soil clots c falling onto the soil clod a and flowing out through the diameter of the middle part of the discharge port 23 sequentially fall onto the intermediate layer consisting of the soil clods b from the largest one according to the size of the diameter,
Furthermore, the fine soil d flowing out from the upper minimum diameter part above the middle part of the discharge port 23 is released against the leveling plate 15 and falls sequentially along the inner surface of the leveling plate 15 onto the upper layer made of the above-mentioned soil clods c. Then, a surface layer consisting of this fine soil d is formed. Therefore, as the soil is dropped from large clods through the discharge ports 23 that are gradually spaced toward the bottom, the field buries coarse organic matter A and is gradually formed into coarse layers from the dense surface layer to the lower layer. Good water resistance and breathability.
The surface layer is then leveled by a leveling plate 15.

Other embodiments of the invention Next, in the above embodiments, the screen 20 is rotatably installed vertically, but the present invention is not limited to this. For example, one end of the adjustment rod may be rotatably connected to the screen 20. At the same time, one of the adjustment rods drilled at the other end of the adjustment rod and the mounting hole of the cover body are fitted with a bolt so that the adjustment rod can be adjusted forward and backward, and by adjusting the adjustment rod forward and backward. The hanging angle of the screen relative to the rotary work body may be adjusted and set depending on the working conditions in the field. In addition, although we have described the case in which each discharge port of the screen is formed into a substantially triangular shape by each comb tooth, the invention is not limited to this. They may be arranged alternately, and the outlet ports formed by the respective restraining pieces may be formed so that the upper part is small and the lower part is large.

Effects of the invention According to the invention, a rotary work body is mounted on a machine frame so as to be rotatable in the up-cut direction, and a cover body that covers the upper part of the rotary work body is attached to the machine frame. An earth protection cover made of an elastic body is supported midway in the front part, and the upper earth protection body part of this earth protection cover is arranged inside the cover body, and the lower sliding piece part is extended to the ground. Therefore, the coarse organic matter located in the front part of the work progress of the rotary work body is rubbed in advance with the sliding part of the soil protection cover in order to make it easy to lift, in preparation for tilling and crushing soil work by the rotary work body. Therefore, since coarse organic matter is not pushed forward and gathered in front, the operation of the rotary work body is not obstructed by coarse organic matter and this does not make it impossible to work, and the rotary work is always carried out. The tilling and crushing work can be carried out smoothly using the body, and since the sliding part can be elastically deformed, it deforms elastically to adapt to changes in the form of the above ground part, ensuring coarse organic matter without sweeping it forward. To provide a tiller and crusher which can be used to rub the ground, and therefore has excellent workability.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a perspective view of a tiller and crusher, and Fig. 2 is an explanatory view of the same operation. 1... Machine frame, 10... Rotary work body, 13
......Cover body, 27...Earth protection cover, 29...
Earth protection body part, 30... Surifu piece part.

Claims (1)

[Scope of utility model registration request] A machine frame, a rotary work body mounted on the machine frame so as to be rotatable in the up-cut direction, a cover body attached to the machine frame and covering the upper part of the rotary work body, and a front part of the rotary work body. An upper soil protection body part that is covered and supported in the middle is disposed inside the cover body, and a lower sliding piece part is made of an elastic body that extends against the ground so as to stroke the coarse organic matter. A tiller and crusher characterized by being equipped with a soil cover.