JPH08126401A - Tilling support device for bottom plow working machine - Google Patents

Abstract

PURPOSE: To provide a tilling support device constituted of a colter, a jointer, etc., capable of surely cutting the shoulder part of a conglomerate clay by maintaining the posture of the jointer constant at all times irrespective of the postures of the colter as well as the working machine. CONSTITUTION: This tilling support device installed in a bottom plow working machine comprises providing a jointer supporting arm 29 so as to imaginarily form a rhomboid with a supporting rod of the jointer indirectly furnished to a colter supporting arm 23 of a colter constituting the tilling support device, supporting a jointer 31 by the jointer supporting arm and the supporting rod through a beam so as to constitute the jointer capable of vertically moving while keeping its angle relative to the soil even with the vertical transfer of the colter.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tillage assisting device for a bottom plow working machine, and more specifically, when inverting the gravel soil cultivated by the bottom plow working machine, the cultivating soil on the uncultivated side of the field is The present invention relates to a tillage assisting device for a bottom plow working machine for performing a pretreatment work for making slits corresponding to the working width of the bottom and cutting the hill-side upper corners of the inverted gravel into corner cuts.

[0002]

2. Description of the Related Art Generally, in a plowing work using a bottom plow working machine (FIG. 4), as shown in FIG.
Although it is ideal that the inverted gravel R be completely inverted at this time, the inverted gravel R is actually inverted to the side of the already cultivated side. It sometimes leaned against the adjacent gravel soil and was not completely inverted, so that weeds growing on the surface of the gravel soil could not be embedded under the inverted gravel soil.

Therefore, in order to promote this reversal, a plowing auxiliary device by a coulter and a jointer is arranged in the work advancing direction of the bottom plow working machine in front of the bottom, and the bottom of the bottom plow working machine is plunged by the coulter. The cultivated soil K on the non-cultivated side is provided with slits S in the plowing width, in other words, the working width of the bottom to facilitate the separation from the cultivated soil on the uncultivated side, and at the same time, the gravel hill just before being inverted When the gravel R cultivated by cutting the side upper corner k by the jointer 1 starts to reverse, the corner k is scraped off so that the corner k does not hinder the rotation, and the reversal movement is surely performed. I am making it. For example, as shown in FIG. 8, the gravel R that has been inverted to the corner portion g of the gravel R _s that has already been inverted.
When the corner portion k of the gravel hits, the gravel R that is about to be inverted falls into the gravel groove due to its weight or the corner portion of the gravel R _S that has already been inverted is broken. To be made.

Cutting the corners k by a jointer is not limited to urging the reversal of the gravel as described above. As shown in FIG. 7, when the corners k are deep, the gravel R becomes large.
In the state in which is reversed, the corners k that have been cut off and blown off are surely buried in the space between the gravel, and the shoulders of the gravel with the corners k being cut face downwards. Even if exposed to, the weeds do not grow again because there are no weeds in that part, so it is considered effective from the viewpoint of suppressing the growth of weeds.

Further, when the ideal ground angle Θ of the jointer changes and becomes large as shown in FIG. 5 (Θ ₂ ), the jointer's hillside corner k is only scratched by scratching the surface of the gravel. Can be removed and cannot contribute to the inversion of the gap. Further, as shown in FIG. 6, when the ideal ground angle Θ of the jointer changes and becomes small (Θ ₁ ), the surface of the cultivated soil cannot be sufficiently stabbed, and the corner k is sufficiently narrowed. It cannot be scraped off, and in an extreme case, the joint just slides on the grass on the surface of the cultivated soil, and cannot cut at a position corresponding to the corner k.

[0006]

However, in the tillage assisting device for the bottom plow working machine as described above, the corter forming the tilling assisting device and the jointer 1 are provided with respect to the main frame 3 of the bottom plow working machine. If there is unevenness on the field surface due to the rigid attachment,
When the tractor rides on the tractor, the working machine itself also moves up and down in accordance with the movement of the tractor, so the plowing assist device, the corter 2 and the jointer 1, also move up and down. However, there was a problem that it was not possible to carry out the intended work because it was separated from the field surface.

In other words, when the bottom plow working machine moves up and down, the angle between the jointer 1 and the field surface, the so-called ground angle Θ, changes, and the size of the portion k obtained by cutting the upper corner of the gravel into a corner cut state is changed. Since there is a change, the inverted state of the inverted gravel R is not constant, and there is a problem that the entire field cannot be plowed and inverted uniformly. As a result, weeds and foreign substances scattered on the surface of the field cannot be buried under the gravel soil, which leads to the generation of weeds again and the problem that organic substances cannot be effectively used.

Therefore, the present invention solves the problem of the conventional tillage assisting device, and obtains the tiller assisting device capable of performing work with the joint angle of the jointer always constant regardless of the unevenness of the field. The purpose is to

[0009]

In order to achieve the above-mentioned object, the present invention provides a bottom plow working machine including a plowing assisting device composed of at least a coater and a jointer. The boss portion attached to the frame to be formed can be rotationally moved in a vertical plane by the support shaft, and is provided with a habit of always in the grounding direction. A disk-type filter that is rotatably attached to the
A support rod of the jointer which is indirectly fixed to the end of the coater support arm, and a jointer which is arranged in parallel with the support rod of the jointer and whose end is pivotally attached to the boss portion. A support arm and a jointer supported by the jointer support arm and the jointer support rod are provided, and the jointer can move up and down without changing the ground angle even when the coater moves up and down. It is characterized in that the joint and the joint are provided with a grounding habit.

[0010]

Since the present invention has the above-mentioned structure, the mounting arm extending from the main frame of the working machine fits into the boss portion of the tillage assisting device, so that a later-described coater or the like can be placed in a horizontal plane. It is rotatably supported, and the middle part of the corta support arm is supported by the support shaft provided on this boss,
At the end of the coater support arm, a coater is attached via a hub portion, and there is a joiner support rod whose end portion is fixed to the hub portion. A jointer's bee with the other end of the rod pivotally attached.
And an end thereof is attached to the beam of the jointer in a state in which the jointer is allowed to rotate, and the jointer supporting arm and the jointing rod of the jointer form a virtual parallelogram. Therefore, the ground angle of the jointer does not change even if the corrugator moves up and down, and it is possible to cut the upper corner of the inverted gravel on the hill side with a constant posture,
The growth of weeds can be surely suppressed after the inversion, and the grounding habit is given to the jointer as well as the corter so that the certainty of the work can be increased and the reliable inversion work can be performed.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will now be described with reference to FIGS. In these drawings, reference numeral 10 indicates a bottom plow working machine (hereinafter, referred to as working machine), and bottoms 12 are attached above and below a main frame 11 to form a reversible working machine.
At the front of the main frame 11, there is a mast 13 which is in an upright state irrespective of the reversing movement, and an upper link 14A of a three-point link hitch 14 provided on the tractor can be attached. Also lower link 1
4L can be attached to the hitch pins formed on both sides of the lower portion of the mast 13.

Reference numeral 20 denotes a tillage assisting device provided in the working machine 10, which is arranged at a position in front of the bottom 12 in the work advancing direction. This tillage assisting device 20 has a support arm 15 having one end fixed to the main frame 11 of the working machine 10 and a shaft 16 at the other end, and a boss portion 21 into which the shaft 16 is fitted. Is formed, and rotation is allowed in the horizontal plane between the boss portion 21 and the support arm 15. This boss 2
1. A support shaft 22 provided to project laterally from 1, that is, a support shaft 2 having an axis in a direction orthogonal to the work advancing direction.
2 is provided, and an intermediate portion of a coater support arm 23 is pivotally attached to the support shaft 22 to enable the rotational movement of the seesaw movement.

At the end of this coater support arm 23, a coater 24 is rotatably attached to a rotary shaft 24B via a hub portion 24A, and this coater support arm 2 is provided.
At the end opposite to the coulter 24 in No. 3, a corter 24
The end of the spring shaft 25 for pressing the
It is attached by 4C.

The spring shaft 25 penetrates a flange portion 21A provided on the boss portion 21, and a supporting bracket 26 having a U-shape in plan view is attached to the end portion thereof. The supporting bracket and the spring shaft 25 are connected to each other. Is fixed by a bolt 25A on the end surface of the spring shaft. The other end of the spring shaft 25 fixed to the support bracket 26 extends rearward in the work advancing direction, and a flange 25C as a stopper is fitted in the end 25B with play, and the flange 25C is closer to the end than the flange 25C. Has a threaded portion, which is screwed with a nut 25D and is in pressure contact with the flange 27A by receiving a compression reaction force of a push spring, which will be described later, and adjusts the compression reaction force by the tightening condition of the nut 25D. You can do it. In this case, if the diameter of the nut 25D is larger than the diameter of the flange 27A and the elasticity of the push spring 27 can be received, the flange 25C can be omitted.

A pressing spring 27 represented by urethane rubber or a spring is fitted in the spring shaft 25 in a loosely fitted state, and a flange 27A provided at an end of the pressing spring 27 serves to prevent compression in the compression direction. It is possible to receive the load. This flange 27A and the flange 25
If the distance from C is small, the upward movement of the coater can be made small. On the contrary, if the distance is large, the upward movement of the coater 24 is allowed.

The pressing spring 27 acts in a direction to press the coater 24 against the field surface when the coater 24 receives resistance in a direction away from the field surface, and the flange 27A is constantly pressed against the flange 25C. Although in a state, when the compressive load acts on the push spring 27 when the coater 24 tries, it exerts a force to resist the compressive load and returns the coater 24 to the grounding direction.

The boss portion 21 extends in the working width direction and is parallel to the support shaft 22 and is parallel to the support shaft 22.
There is a support shaft 28 which exists in a vertical plane including a support shaft 28, and an end portion of the support shaft 28 is bent at a right angle and linearly extends rearward to form a jointer support arm 29. Its end 2
9A is a shape that avoids interference with the coater 24, and is bent substantially at a right angle to the straight line portion, and this end portion 29A allows rotation between the beam 31A supporting the jointer 31 between them. It is installed in the installed state.

A support rod 32 having an end portion 32A which is allowed to rotate with respect to the beam 31A of the jointer 31 is attached to the jointer 31, and the other end portion 32B is planar. It has a flange 32C that is formed so as to project, and this flange 32C and the end portion 23A of the coater support arm 23 are fixed by bolts 32X. This support rod 32 is a jointer support arm 29.
However, their axial centers are parallel to each other in a side view, and the end portion 2 of the joint support shaft 29 is
9A and the end portion 32A of the supporting rod 32 of the corrugator are arranged in a vertical plane in a vertical plane in a plane orthogonal to the work advancing direction. In other words, the end 29
The distance h ₁ between A and the end 32A is equal to the distance h ₂ between the support shafts 22 and 28, and the distance s ₁ between the support points of the jointer support shaft 29 and the linear distance between the end 32A and the support shaft 22. s ₂
Is equal to.

Therefore, the jointer supporting arm 2
9 and the support rod 32 are parallel to each other, the end portion 29A
Since the distance between the end portion 32A and the end portion 32A is equal to the distance between the support shafts 22 and 28, they form a virtual parallelogram, and the joint 31 does not change its posture. Allows the person to move up and down.

Next, the work using the tillage assisting apparatus of the present invention will be described. First, when there is no unevenness on the surface of the field, there is no problem, and the corter 24 forms a slit along the cultivated land side corresponding to the working width of the bottom,
The jointer 31 cuts the upper corner portion k on the hill side of the gravel to be inverted, and cuts a portion that functions as a stopper when the inverted gravel rotates in the reverse direction, in other words, a portion that obstructs the inversion. Ensure the reversal of debris.

When the surface of the field has irregularities, the tractor moves up and down as the tractor moves, and the work machine 10 tow by the tractor also moves up and down. The cultivating assisting device that is being used also naturally moves up and down, but when the coater 24 moves upward, the coater 24 rotates around the support shaft 22 as a center.
The filter support arm 23 absorbs the movement of the filter 24 by making a partial rotational movement. Corta support arm 23
In contrast, since the spring 27 is attached to the spring shaft 25 attached to the other end, when the coater supporting arm 23 rotates beyond the limit, the spring shaft 25 is attached to the flange 27A.
When a load in the compression direction is applied to the spring 27, the elastic force of the spring 27 brings the corter 24 into contact with the ground, that is, the corter support arm.
1 to rotate the counterclockwise clockwise in FIG.
Increase the ground pressure of 4.

In other words, even if the coater 24 tries to move upward, the spring 27 acts as a resistance to prevent the coater 24 from jumping up. Therefore, the corta 2
Since the jointer 31 attached in association with No. 4 is also provided with the habit in the grounding direction, it can be grounded as much as possible, and even if the coater 24 moves upward, the jointer 31 simply moves upward. Since it only moves to, there is no change in the ground angle. This also applies to the jointer 31, and since one end of the support rod 32 is fixed to the hub portion of the coater 24,
Like the corta, the jointer is also given a grounding habit. This is because the support rod 32 and the support rod 32 are arranged in parallel with each other, so that the support rod 32 is shorter than the coater support arm 29, but s ₁ = S
_Since a parallelogram having a relationship of ₂ , h ₁ = h ₂ is formed, the vertical movement is always along the vertical direction.

Therefore, the hill-side upper corner portion of the gravel is always cut with a constant posture (angle), and moreover, reliable cutting is possible, and the reversed gravel is surely adjacent to the gravel groove. The grass and foreign matters which were turned upside down and leaned on the adjacent gravel and slanted to exist in the surface and buried in the bottom of the gravel along with the corner k.

[0024]

As is apparent from the above description, the tillage assisting device for a bottom plow working machine according to the present invention supports the cort with respect to the cort having the grounding habit. The connector support arm, the support rod of the jointer whose ends are indirectly fixed to the filter support arm, and the jointer support arm having the pantograph function form the jointer. Since it is configured to support, even if the corta moves up and down, the jointer only moves up and down while maintaining the desired posture, so there is no change in the ground angle. Since the jointer is also indirectly given the grounding habit, it is possible to reliably and consistently cut the hillside corners of the inverted gravel into a constant shape, which allows the vertical movement of the corter. Surely regardless of It is possible to reverse the soil.

[Brief description of drawings]

FIG. 1 is a side view showing a tillage assisting device for a bottom plow working machine according to the present invention.

FIG. 2 is a plan view showing a tillage assisting device for a bottom plow working machine according to the present invention.

FIG. 3 is a side view of a working machine including the tillage assisting device of the present invention.

FIG. 4 is a side view of the tillage assisting device in the conventional bottom plow working machine.

FIG. 5 is an explanatory view showing a state where a jointer is lifted up during a plowing work using a conventional bottom plow working machine.

FIG. 6 is an explanatory view showing a state in which a jointer is stuck in a plowing work using a conventional bottom plow working machine.

FIG. 7 is an explanatory cross-sectional view showing a state of gravel inversion in a field.

FIG. 8 is an explanatory cross-sectional view showing a process of gravel inversion in a field.

[Explanation of symbols]

 10 Working Machine 11 Main Frame 12 Bottom 13 Mast 14 3 Point Link Hitch 20 Working Machine 21 Boss 22 Support Shaft 23 Corta Support Arm 24 Corta 25 Spring Shaft 26 Support Bracket 27 Push Spring 28 Support Shaft 29 Joiner Support Arm -M 31 Joint 32 Support rod

Claims (2)

[Claims] 1. A bottom plow working machine including at least a plowing auxiliary device composed of a coater and a jointer, wherein a support shaft is attached to a boss portion attached to a frame forming the working machine. A corter support shaft that can rotate in a vertical plane and is always given a tendency toward the ground, and a rolling type corret that is rotatably attached to the corter support shaft. A support rod of the jointer fixed to the end of the corter support shaft, and a jointer support rod arranged in parallel with the support rod of the jointer and having an end pivotally attached to the boss. And a jointer supported by the jointer supporting arm and a jointing rod of the jointer. The jointer can move up and down without changing the ground angle even when the coater moves up and down. Plowing assist device, wherein a configured as possible. 2. The tillage assisting device according to claim 1, wherein the corter and the jointer are provided with a grounding habit.