JPH09322601A - Subsoiler working machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a subsoiler working machine preventing the adhesion of excavated soil to the knife, promoting the discharge of soil after forming a furrow, improving the working efficiency by mounting a friction decreasing member along the front edge of the knife to decrease the friction with soil. SOLUTION: This subsoiler working machine has the knife 20 mounted on the frame having a friction decreasing member 22 attached at least along the front edge 21 of the knife 20. This friction decreasing member 22 is surrounded with reinforcing member excluding the front part of the traveling direction of the work, the friction decreasing member 22 preferably forms an excretory curve 22X according to approach to the top end of the knife 20 to the direction escaping from the front of the traveling direction including the knife 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a subsoiler working machine, and more particularly, to a subsoiler working machine for reducing working friction with soil, suppressing soil adhesion, and further promoting soil discharge after forming grooves. Regarding the machine.

[0002]

2. Description of the Related Art In a field, fracturing, treading of a tractor due to long-term use, formation of a board due to use of a rotary tiller, natural hardening of soil due to permeation of rainwater proceeded, and not only the surface but gradually hardened. The layers tend to grow down. Particularly in a pasture, a hard layer gradually grows due to the trampling by livestock such as cows, which results in hindering the root extension of the pasture. In the field where the surface is hardened, the cultivation soil layer is apparently formed by cultivating only the surface by the rotary cultivator, but a disc is formed in the lower layer of this cultivation layer, and this disc is permeable. Is extremely poor (poor water permeability) and has poor air permeability, so even a little rain will flood the soil and the crop soil will not grow. Often it is something you cannot expect. Therefore, not only crushing the plow bed layer using the subsoiler work machine, but also crushing the subsoil layer existing below it to make the plow layer water-permeable, and further, in the subsoil layer. By supplying air, the soil is activated and drainage is
Improving water permeability is being carried out.

[0003]

From the purpose of this working machine, the purpose is to crush the subsoil layer at the deepest position, but in the subsoil crushing work at a deep position, the load applied to the tractor is It is extremely large, which forces the use of large horsepower tractors. This sub-soiler work machine pulls a knife-like knife through the soil with a force greater than the resistance, so the resistance varies depending on the soil environment, but it is a work that has a larger load than surface work. There is no. Therefore, in order to reduce the load as much as possible, the shape of the knife has been improved, but depending on the soil, especially in volcanic ash soil, the soil adheres to the knife as if it were clay work, Further, there is a problem that this soil calls the soil and the knife becomes like a bar of the soil and only the resistance increases, making it impossible to continue the work. In particular, this phenomenon is remarkable in the field in the Kanto loam zone, and even if it becomes impossible to use the sub-soiler working machine, some measure is required. Even if the sub-soiler work machine can be used, the soil after being excavated by a chisel or knife to form a groove is pushed up to the surface,
As the soil progresses, the soil rises in front of the knife,
This may be accumulated between the frame of the working machine and the surface of the field to hinder the work. Therefore, while making it difficult for soil to adhere to the knife of the sub-soiler working machine,
Further, the purpose is to prevent the soil excavated and raised on the surface from hindering the work.

[0004]

In order to achieve the above-mentioned object, the present invention is a subsoiler working machine constructed by attaching a knife to a working machine frame to prevent the front edge of the knife from rubbing against soil. It is characterized in that a friction reducing member for reducing the friction is attached, and the friction reducing member is surrounded by a reinforcing member at a portion except the front surface in the work advancing direction to prevent uneven wear. Further, the friction reducing member is shaped so as to deviate from the plane including the work advancing direction toward the upper end so as to offset the soil excavated and excavated on the surface from the work advancing direction to the left and right directions. It is what

In addition, in a soil field where soil adhesion is not remarkable, soil after excavation, in other words, soil removed after grooving, must be fitted with a metal mold plate in order to surely remove it from the working direction. It is characterized by being configured. The friction reducing member is made of plastic such as polyethylene having a low resistance to soil, and is characterized by using less abrasion and excellent abrasion resistance.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIG.
Or, description will be added to FIG. First, in these attached drawings, reference numeral 10 indicates an entire two-claw type sub-soiler working machine (hereinafter referred to as a working machine). The working machine 10 is a hollow frame 11 extending along a working width direction.
At the left and right ends of the frame 11, the frame 11 extends in the work advancing direction, that is, the front-back direction.
A pair of flange plates 12 sandwiching the frame 11 from above and below
The front end portion of the flange plate 12 is fixed by four bolts 13 in front of and behind the frame 11. The other end of each of the flange plates 12 extends rearward to form an extension 12A, which is sandwiched between the extension 12A and 12A from above and below and has a U-shaped cross section. The spacer 14 is formed,
The vertical plate portions of the spacers 14 are arranged so that they are perpendicular to the flange plate 12, and the vertical plate portions of the two spacers 14 and 14 face each other, which will be described later. They are arranged and fixed with an interval S corresponding to the thickness of the knife.

A through hole 12B is formed in the flange plate 12 at a portion corresponding to the space S between the spacers 14, 14 so that a knife, which will be described later, can be inserted therethrough. , Forming a space for the knife to pass through.
The flange portion of the spacer 14 is the flange plate 12 described above.
It is bolted to the extension 12A. A common window hole 14A is bored in the spacers 14, 14 so that a pin can be inserted to fix the knife with the pin 16.

The knife 20 has a width along the work advancing direction, and the blade edge portion is slightly thicker in the left-right direction than the conventional knife, and the front edge 21 corresponding to this blade edge portion is formed. The friction reducing member 22 has a metal bracket 23
And are fixed by bolts 24 at appropriate intervals. The metal bracket 23 is defined by the shape of the friction reducing member 22, and has a shape surrounding the back surface and the side surface of the friction reducing member 22, and the friction reducing member 22 is worn to cause a change in shape. The edge portion is prevented from being unevenly worn as much as possible. The friction reducing member 22 is along the shape of the knife 20, and has a curve drawn from the upper end to the lower end slightly toward the front, and the lowermost end of the knife 20, in other words,
Chisel 2 for crushing subsoil at the most tip position in the work progress direction
5 is fixed, and a wing 26 that enhances the crushing effect is connected behind it.

In particular, the friction reducing member 22 and the bracket 23 thereof are twisted toward the side in the work advancing direction near the upper end portion, in other words, an earth discharging curved surface 22X is formed. As the soil is moved upward along 22X, the soil can move away from the plane including the knife 20 and escape to the side. The bracket 23 and the friction reducing member 2 are also provided along the earth discharging curved surface 22A.
It has a shape along the curved surface to accommodate 2. The earth discharging curved surface 22X has a bilaterally symmetrical earth discharging direction so that the soil discharged from each other can be discharged toward the outside of the working width. Therefore, in the case of the one-claw type, it may be twisted on any side in the work advancing direction as long as it has a shape capable of preventing clogging of the soil. Further, the excavation curved surface 22Y is formed by drawing a gentle curved surface toward the lower end portion opposite to the upper end of the knife 20 so as to be oriented in the work advancing direction. While excavating the soil along the ground, and pushing up the excavated soil to the surface of the field as the work progresses, it reaches the vicinity of the upper end and reaches the earth removal curved surface 22 as described above.
It is shaped so that the soil can be moved laterally along X.

As a result, in actual work, the soil at a deep position is excavated and pushed up along the friction reducing member 22 along the excavation curved surface 22B, while being pushed up to the field surface. The soil is discharged laterally in the work advancing direction along the discharge curved surface 22X. Even if the soil rises due to excavation, the friction reducing member 22
By moving the soil laterally in the traveling direction, more specifically, outside the working width, by the guide of the soil discharge curved surface 22X formed in, the soil is piled up in the space between the lower surface of the frame and the field. It is possible to prevent swelling and clogging, and to discharge swelling soil laterally in the traveling direction. Therefore, in the case of the one-claw type sub-soiler working machine, the discharge can be performed on either the left or right side, and therefore the twist direction of the friction reducing member can be freely left and right.

This can be understood easily by comparing with a conventional sub-soiler working machine. When the soil discharge curved surface 22A is not formed in the friction reducing member 22, the soil excavated along the excavation curved surface 22B is lifted, but the soil is lifted in the plane including the knife 20. Upon hitting the frame that constitutes the working machine, it accumulates in the space between the frame and the field and grows as a mass of soil, which grows bloated with the progress of the work and hinders the progress of the work. According to one aspect of the invention, it is possible to solve such an inconvenience in work.

The friction reducing member 22 has a high wear resistance and has no adhesiveness even in the case of soil such as a Kanto loam layer which easily adheres to an iron knife, or Even if there is adhesiveness, it is a very small adhesiveness, and a resin molded product such as polyethylene that has excellent flexibility in molding is used, and even if it is worn, a structure that is not attached by bolts so that it can be replaced Has been adopted.

In the above description, the friction reducing member 22 is attached along the front surface of the knife 21 in the work advancing direction, but the friction reducing member 22 is attached to the knife 20.
It is also possible to fix both left and right sides. In this case, the side friction reducing member 22 is smaller than the width of the friction reducing member 22 on the front surface of the knife 20. Furthermore, although the case where the friction reducing member is attached via the bracket has been described, it may not be necessary depending on the soil to be worked.

Further, in the case of soil which is unlikely to adhere to the knife unlike the Kanto loam layer, the friction reducing member 22 has a small meaning. In this case, the friction reducing member 22 is made of metal instead of plastic. It is possible to ensure discharge of excavated soil by replacing it with a mold plate made of steel. In this case, the same shape as that of the friction reducing member 22 is used to form the excavation curved surface 22Y and the earth discharging curved surface 22X. The earth discharging curved surface 22 as shown by the phantom line in FIG.
An inverted curved surface 22Z is formed at the upper end of X to increase the lateral inversion of the discharged soil by the twisted portion of this inverted curved surface, and an effective function as a mold plate can be expected.

[0015]

As is apparent from the above description, according to the subsoiler working machine of the present invention, the soil excavated during the work can be prevented from adhering to the knife as much as possible, and the friction with the soil can be reduced. Since it can be made as small as possible, the tractor can have a margin, and in particular, the friction reducing member is designed to allow the discharge direction of excavated soil to escape to the side from the plane including the knife, so that the discharged soil can be worked. You can work efficiently without hindering your progress.
Further, when it is not necessary to consider the adhesion of soil in the field to a great extent, the friction reducing member is replaced with a metal mold plate to be attached to the excavated soil, in other words, the soil after grooving. There is an effect that the work can be prevented from being hindered by diverting it laterally from the work advancing direction.

[Brief description of drawings]

FIG. 1 is a side view of a subsoiler working machine according to the present invention.

FIG. 2 is a plan view of the subsoiler working machine of the present invention.

FIG. 3 is a perspective view of a knife portion of the sub-soiler working machine of the present invention.

FIG. 4 is a detailed perspective view of the friction reducing member of the sub-soiler working machine of the present invention.

5 is a partially enlarged perspective view of a portion 5 in FIG. 1. FIG.

FIG. 6 is a partially enlarged perspective view of portion 6 in FIG.

[Explanation of symbols]

 10 Sub-soiler working machine 11 Frame 12 Flange plate 13 Bolt 14 Spacer 20 Knife 21 Leading edge 22 Friction reducing member 22X Discharge curved surface 22Y Excavation curved surface 22Z Inverted curved surface 23 Bracket 24 Bolt 25 Chisel

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] July 10, 1996

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

[Fig. 2]

[Figure 3]

FIG. 4

[Figure 5]

FIG. 6

Claims (5)

[Claims] 1. A subsoiler working machine having a knife attached to a working machine frame, wherein a friction reducing member for reducing friction with soil is attached along at least a front edge of the knife. Sub-soiler working machine. 2. The subsoiler working machine according to claim 1, wherein the friction reducing member is surrounded by a reinforcing member except for the front surface in the work advancing direction. 3. The subsoiler work according to claim 1, wherein at least the friction reducing member is formed with a discharge curved surface in a direction deviating from a work advancing direction plane including the knife as it goes toward an upper end portion of the knife. Machine. 4. The subsoiler working machine according to claim 1, wherein a friction reducing member is fixed to a side surface of the knife. 5. A subsoiler working machine constructed by mounting a knife to a working machine frame, at least along with a front edge of the knife, mounting a mold plate for discharging soil after groove formation, the mold plate The sub-soiler work is characterized in that the discharge curved surface is formed in a direction deviating from the work advancing direction plane including the knife toward the upper end of the knife so that the soil after the groove is formed can be discharged sideways. Machine.