JPS6014809Y2 - subsoil crusher - Google Patents

Description

[Detailed description of the invention] The present invention relates to a subsoil crushing machine that can perform subsoil crushing work in a stable condition and in good condition, and also enables the reliable introduction of permeable material into the trench. The purpose is to improve drainage by allowing rainwater, etc. on the surface to flow well into the groove.

For example, subsoiling work is carried out in the field using a subsoiling crusher such as a subsoiler or pan breaker, and water-permeable material such as rice husks is filled into the grooves formed by the shank and chisel of the subsoiler. It is well known that this produces a drainage effect in the field.

By the way, in the past, the subsoil crusher usually had one gauge wheel on one side, but in this case, the subsoil crusher was tilted laterally and the gauge wheel side was likely to be higher than the other side. However, there was a problem in that it was difficult to perform subsoil crushing work in a stable condition.

Furthermore, in the past, since the permeable material was directly poured into the narrow groove from the discharge part of the tank, there was a problem in that it was quite difficult to reliably feed the permeable material into the groove.

Furthermore, conventional subsoil crushing machines were not equipped with any kind of ground leveling member to flatten the ground surface on both sides of the trench. This causes problems such as rain and ice on the ground surface on both sides of the groove to flow into the groove during rainfall, resulting in poor drainage.

The present invention has solved the above problem, and its feature is that in a sub-soil crusher that injects and fills permeable material into the groove formed by the shank and chisel, the above-ground part of the shank is The bridge body is provided with a sliding portion that slides on the ground surface on each side of the shank, and a guide portion that guides the water-permeable material into the groove.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a tractor body, which has a hydraulic system 2 for lifting and lowering the working machine. A subsoil crusher 6 is mounted so as to be movable up and down via a three-point linkage mechanism 5 consisting of a lower link 4 and a lower link 4.

The top link 3 is pivotally connected to the upper end of the T-shaped vibration table 7,
This vibration table 7 is pivotally supported by a top link mount 3 at the rear end of the vehicle body 1 by a mounting pin 9.

10 is a vibration force extraction device, which converts the tractor to a single PTO shaft 1
The vehicle includes a drive shaft 12 that is removably spline-fitted, and a holding case 13 that rotatably holds the drive shaft 12. The holding case 13 is fixed to the vehicle body 1.

The drive shaft 12 has an eccentric shaft 14 at the rear, and this eccentric shaft 14
A bearing ring 15 fitted to the vibration table 7 so as to be relatively rotatable is connected to the vibration table 7 via a connecting rod 16.

The subsoil crusher 6 includes a machine frame 17, a knife-shaped shank 19 vertically adjustable and inserted into a holding fitting 18 in the middle of the machine frame 17, a chisel 20 provided at the lower end of the shank 19, and a pair of left and right chisels 20. The bridge body 21, the water-permeable material tank 22 provided at the rear end of the machine frame 17, the water-permeable material pressing member 23 disposed behind the water-permeable material tank 22, and the like.

The permeable material tank 22 is located directly behind the shank 19, and its discharge portion 24 is lowered to near the ground surface.
From there, the water-permeable material such as rice husk in the tank 22 is charged into the groove 25 formed by the shank 19 and the chisel 20.

As shown in FIGS. 2 to 4, the pair of left and right bridge bodies 21 are attached to both sides of the above-ground portion of the shank 19 near the ground surface with bolts 27 using upright brackets 26, and are detachable and vertically adjustable. ing.

The bridge body 21 includes a sliding contact portion 28 on the front side and a guide portion 2 on the rear side.
From 9 onwards.

The sliding contact portion 28 has a horizontal plate shape and slides on the ground surface on both sides of the shank 19.

The guide part 29 is located below the discharge part 24 and connects the water-permeable material to the groove 25.
The inner end is in contact with the groove shoulder and the outer end is raised from the ground surface and is inclined laterally.

As shown by the imaginary line in FIG. 4, the inner end of the guide portion 29 is extended so that the extended portion slides over the upper end of the groove side wall 30, so that the above-mentioned portion is attached to the structure side wall. 30. The upper end portion may be shaped.

The pressing member 23 has a bridge shape, and its stay 31 is provided on a cylinder 33 fixed to the rear end of the machine frame 17 via a bracket 32, and the pressing member 23 is urged downward by an elastic device 34. The pressing member 23 slides on the water-permeable material filled in the groove 25 and presses the water-permeable material downward with a desired pressing force.

In addition, as shown by the imaginary line in FIG.
It is also possible to attach the molding bullet 36 through the hole 5 to form a drainage pipe groove in the soil, or to embed the drainage pipe.

Next, the action will be explained.

During work, the chisel 20 at the lower end of the shank 19 is inserted into the soil to a desired depth to ground the bridge body 21 and to allow the permeable material filled in the groove 25 to be pressed with the desired pressing force by the pressing member 23. The subsoil crusher 6 is towed while dropping the permeable material from the discharge part 24 of the permeable material tank 22.

By doing the above, the chisel 20 and the shank 19 crush the subsoil, and the shank 19 and the chisel 20 break the grooves.
5 is formed, the permeable material that has fallen from the discharge part 24 is guided by the inclined guide parts 29 of both bridge bodies 21 below and is reliably charged into the groove 25, and this charged and filled material is The water-permeable material is pressed with a desired pressing force by the pressing member 23, and the water-permeable material filled in the groove 25, for example, is flattened, and the grooves 25 are filled with the water-permeable material satisfactorily.

In addition, during the above-mentioned work, since both bridge bodies 21 come into sliding contact with the ground surface on both sides of the shank 19 through their sliding contact parts 28, there is no risk that the subsoil crusher 6 will tilt laterally, and the working depth is constant. As a result, the subsoil crushing work can be carried out in a stable and good manner, and the ground surface on both sides of the trench 25 can be prevented from rising, and as a result, rainwater, etc. on the ground surface on both sides of the trench 25 can be drained during rain. It flows well into the groove 25, and drainage performance can be improved.

In addition, since the water-permeable material is well filled in the groove 25, there is no risk that the groove 25 will be blocked by the groove 25 being blocked by the groove side walls 30 being attracted by the pressure from both sides of the groove 25 after work. The effect can be maintained well for a long period of time, and when the water-permeable material is dry, air can circulate well into the soil through the water-permeable material.

Furthermore, during the above-mentioned work, if the gate shaft 11 is rotated, the drive shaft 12 will rotate together with it, and the connecting rod 16 will crank in the vertical direction via the eccentric shaft 14. The vibration table 7 repeats reciprocating movements up and down using the mounting pin 9 as a fulcrum, and the top link 3 vibrates in the longitudinal direction.

Then, this vibration is transmitted to the machine frame 17 of the subsoil crusher 6, and this machine frame 17 moves back and forth using the rear end of the lower link 4 as a fulcrum, so the subsoil crusher 6 moves forward while repeating vibrations back and forth. As a result, the traction resistance of the subsoil crusher 6 can be reduced, and the risk of a bridge of the water-permeable material occurring in the water-permeable material tank 22 can be completely eliminated.

In the embodiment, the bridge body is attached to the shank, but the shank may be attached to the machine frame or the like.

Further, in the embodiment, the bridge bodies are a pair of left and right bridge bodies, but they may be integrated.

As detailed above, the present invention allows the subsoil crushing work to be carried out using the shank and chisel, and also fills the trench with permeable material, so there is no risk that the trench will become clogged after work. This has the advantage that the drainage effect of the groove can be maintained well over a long period of time, and that air can circulate well into the soil through the water-permeable material when the water-permeable material is dry.

In addition, since the bridge body is in sliding contact with the ground surface on both sides of the shank, there is no risk of the sub-soil crusher tilting, and the working depth can be kept constant, making it possible to crush the sub-soil. In addition to being able to perform work in a stable condition, it also prevents the ground surface on both sides of the trench from swelling up, and as a result, rainwater on the ground surface on both sides of the trench flows well into the trench during rain, improving drainage. I can do better.

Further, since the bridge body is provided with a guide portion for guiding the water-permeable material into the groove, the water-permeable material can be reliably thrown into the groove.

The present invention has the above-mentioned various advantages, has a simple structure, can be manufactured at low cost, and is highly profitable.

[Brief explanation of the drawing]

Fig. 1 is an overall side view illustrating one embodiment of the present invention;
The figure is a sectional view taken along the line ■-■ in Figure 1, and Figures 3 and 4 are
FIG. 2 is a sectional view taken along the line mm and IV-IV in FIG. 2; 6... Subsoil crusher, 17... Machine frame, 1
9...Shank, 20...Chisel, 2
1... fi body, 22... water permeable material tank, 25... groove, 28... sliding contact part, 29
...Information department.

Claims (1)

[Scope of utility model registration request] In a subsoil crusher that injects permeable material into a groove formed by a shank and a chisel, a bridge body is installed on both sides of the above-ground part of the shank, and a bridge body is installed on the ground surface on each side of the shank. A subsoil crushing machine characterized by comprising a sliding contact part that makes sliding contact and a guide part that guides a permeable material into a groove.