JP2000217401A - Subsoiler working machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a subsoiler working machine readily capable of controlling positions of knife beams and attaching and detaching to a frame. SOLUTION: This subsoiler working machine attachably and detachably fits knife holders 33 and 34 supporting knife beams 21 and 22 to a working machine frame 31 as a working machine main body through a fitting means and the fitting means are engaged at an end with each other in sliding state and are formed to coincide with an outer shape of the frame 31 when other ends of them approach, then either of the fitting means composed of a fixing tool 36 comprising a pair of fixing boards 37 and 38 bonded to the knife holders and fixing means 41 and 42 fixing other ends of the fixing boards 37 and 38 with each other.

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 capable of easily adjusting a mounting interval of a knife beam to a working machine frame constituting the subsoiler working machine.

[0002]

2. Description of the Related Art A subsoiler is used for drying a field or improving the soil structure of a field.
It is configured by attaching a plurality of knife beams, such as one or two, and there is no problem in the case of one knife beam. However, in the case of a configuration equipped with two or more knife beams, the later It is necessary to consider the knife beam spacing in consideration of using a tractor in field work. In other words, it is necessary to adjust the distance between the knife beams depending on the type of crop.

[0003] Many of the conventionally known subsoiler working machines have a plurality of bolts per one as mounting means for attaching a knife beam to a frame constituting the working machine, more specifically four to six bolts. It is attached quite firmly considering the load during work, even though it is a bolted connection.
Therefore, even if an attempt is made to loosen the bolts for the purpose of adjusting the interval between the knife beams, the operation is quite a labor and requires a considerable amount of time until the end of the operation. It is well known that such a subsoiler working machine is used for the purpose of drying a field or the purpose of expanding a root zone by crushing subsoil.

[0004] In addition, a dry field is also desirable for a paddy field, and it is necessary to crush the hard disk with a subsoiler working machine in order to obtain an appropriate water depth. As described above, performing the work using the subsoiler working machine so as to obtain an appropriate water reduction depth enables the cultivation of rice even in the cold summer, which is extremely pleased for rice farmers. Therefore, a conventional subsoiler working machine widely used will be described with reference to FIGS.

[0005] In these figures, the subsoiler working machine includes a working machine frame 1 constituting the working machine.
The working machine frame 1 is made of steel and processed by a pipe member having a rectangular cross section, is arranged along the working width direction, and a knife holder 3 is attached to a central portion of the working machine frame 1. . The knife holder 3 is formed by connecting members made of a steel plate, a shape steel, or the like to each other by bolts, nuts, or welding. The knife holder 3 is long in the work traveling direction, and is provided with a work machine frame 1 by three sets of bolts 4 and nuts 5 near its front end.
Has been concluded. More specifically, these bolts 4
Has a threaded end protruding upward through the work machine frame 1 from below, and a nut 5 is screwed into this end.
A knife beam 6 is attached to the rear end of the knife holder 3 in a hanging state, and is formed by joining members made of a steel plate, a shape steel, or the like to each other by bolts, nuts, or welding. A chisel 7 is provided at the lower end of the knife beam 6 so that the subsoil can be crushed. A wing 7a is attached to the rear side in the working direction, and after excavating with the chisel, a space, a so-called culvert. Can be formed.

A mast 9 is arranged and erected at the center of the working machine frame 1. The mast 9 is formed of a steel plate, extends vertically in the vertical direction, and has a lower end portion of the knife holder 3. It is fixed to the front end. For more information,
The knife beam 6 is fastened to the left and right by four sets each, with a total of eight sets of bolts and nuts. A hitch pin 9a is provided in a hitch pin hole at an upper end portion of the mast 9, and an upper link U of a three-point link hitch mechanism provided in the tractor.
Are connected by inserting a hitch pin 9a into the pin hole and the hitch pin hole.

A crossbar 11 is disposed in front of the work machine frame 1 in parallel with the work machine frame 1, and is attached to the work machine frame 1 at both ends by brackets 12. The lower link L of the three-point link hitch mechanism is connected to both ends of the crossbar 11. The subsoiler working machine is mounted on the tractor by mounting with the three-point link hitch mechanism.

The working machine frame 1 is further provided with two knife holders 13 and 14 near both ends thereof. The knife holders 13 and 14 have the same shape and the same size as each other. The knife holder 3 arranged at the center of the frame 1 is arranged in parallel with the knife holder 3.
In addition, the length of the knife holder 3 in the rearward direction is set to be shorter than that of the knife holder 3 due to the arrangement in plan view. Like the knife holder 3, the knife holders 13 and 14 are also formed by connecting members made of a steel plate, a shape steel, or the like to each other by bolts, nuts, or welding.

The knife holders 13 and 14 are fastened to the frame 1 at their front ends by six sets of bolts 16 and nuts 17. Specifically, three sets of the bolts 16 and the nuts 17 are arranged in parallel with each other so as to sandwich the frame 1 in the front and rear directions, and a collar 19 made of a steel pipe is fitted into each of the bolts 16. Knife beams 21 and 22 are attached to both knife holders 13 and 14, similarly to the knife holder 3 arranged at the center of the frame 1. Chisels 24 and 25 are provided at the lower end portions of the knife beams 21 and 22, and wings 24 are respectively provided on these.
a, 25a are attached.

Next, the actual operation using the subsoiler working machine will be briefly described. First, at the work start position in the field, the subsoiler working machine is lowered to the minimum height by the operation of the hydraulic cylinder of the lift mechanism of the tractor, and the tractor is advanced, so that the knife beams 6, 21, and 22 of the subsoiler working machine are moved to the surface of the field. The subsoil crushing work is performed by guiding the soil into the soil.

Prior to such an operation, it is necessary to adjust and set the interval between the knife beams 6, 21 and 22 in view of the relationship between the planting ridge width and the like. In such adjustment work, the knife beams 21 and 22 located on both sides are moved. Since this movement is performed along the work machine frame 1, the knife holders 13 and 14 and the work machine frame 1 are tightened. It is necessary to cancel the wearing relationship once. Specifically, first, six sets of bolts 16 and nuts 17 that fix both knife holders 13 and 14 to the working machine frame 1 are loosened, and the knife holders 13 and 14 are moved inward along the working machine frame 1, Alternatively, it is moved outward to adjust the interval between the three knife beams 6, 21, 22. After the spacing adjustment is completed, loosen each bolt 16 and nut 1
7 is fastened again.

[0012]

When the subsoiler is used as described above, bolts and nuts are tightened during the preparation of the knife beam interval, which is a preparatory operation.
Release work is required, which is a considerable labor. That is, six sets of bolts and nuts must be loosened and re-tightened for each knife holder that supports each knife beam, and it is undeniable that the operator feels troublesome and actually requires a great deal of labor. I have to spend. This operation can be said to be the case where the knife beam is repaired or replaced, so that the operation of removing the knife holder from the working machine frame and reattaching the knife holder is considerably troublesome.

In view of the above, the present invention is an improvement of the conventional subsoiler working machine for the purpose of easily adjusting the spacing of the knife beams and attaching / detaching the knife beam.

[0014]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides a knife holder for supporting a knife beam and attaching the knife holder to a working machine frame which is a component of the working machine. In the subsoiler working machine configured to be mounted via means, the mounting means,
A pair of fastening plates capable of surrounding the periphery of the working machine frame, and one end of each of the fastening plates is engaged with each other, and a flange portion is formed at the other end of each other. The parts are configured to be bolted to each other. Further, the working machine frame is a pipe member having a rectangular cross section, and two ridge lines having the square cross section are at the top and the lower part, and each surface of the pipe material has an inclined surface. It is characterized by having done.
Further, a hook-like portion is formed at one end of the pair of fastening plates, and the other end of the fastening plate allows the hook-like portion to rotate by an appropriate angle at one end of the fastening plate. And the two flange portions are configured to be rotatable with each other when the flange portions are released. Still further, the end portions of the pair of fastening plates opposite to the flange portion are fixed to each other, and the flange end portions can be opened by the elasticity of the fastening plates.

As described above, in the subsoiler working machine of the present invention, the knife holder can be immediately moved along the working machine frame by loosening the fastening state of the fastening means. Fixed against. Further, the knife holder can be removed from the frame by completely releasing the fastening state. In addition, since the pipe member has a rectangular cross section of the working machine frame, and a ridge portion is located at an upper end position and a lower end position, and the surface of the cross sectional shape is arranged in an inclined state, work is performed. Sometimes the load received is distributed. Furthermore, a hook portion is formed at one end of one of the pair of fastening plates, and a fitting portion is formed at one end of the other fastening plate which is housed and fitted in the hook portion. In this part of each other, pivotal rotation is allowed, so that the fastening plate can open the flange end, and the attachment and detachment work is easy. In addition, the opposite ends of the flange ends of the pair of mounting members are not limited to the pivoted state, but are integrated by welding or the like. Being able to open the end allows easy attachment / detachment, attachment, and position adjustment.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS. In the description of the present invention, parts other than those described below are configured in the same manner as the conventional subsoiler working machine shown in FIGS. 5 to 8. Identical and similar components are denoted by the same reference numerals and description thereof is omitted.

First, as shown in FIG. 1, a working machine frame 31 constituting a subsoiler working machine of the present invention is formed by processing a pipe member made of steel and having a rectangular cross section. The book is at the top and the bottom, and is arranged such that each surface of the pipe member forms an inclined surface. In other words, the work machine frame 31 is arranged so that the diagonal line of the rectangular cross section is along the work progress direction and is perpendicular to the work progress direction. Two knife holders 33 and 34 for supporting the knife beams 21 and 22 are attached near both ends of the frame 31, respectively.
The knife holders 33 and 34 have the same shape and the same size as each other, and are arranged in parallel with the knife holder 3 arranged at the center of the working machine frame 31. The length of the blade holder 33 is set to be shorter than that of the knife holder 3. Similarly to the knife holder 3, the knife holders 33, 34 are made of steel plate, shaped steel, or the like by bolts, nuts, or welding. It is formed by processing.

The knife holders 33 and 34 are attached to the frame 31 at their front ends via fixing means 36 as attachment means. In FIG. 1, not all fixtures 36 are shown because of the state of the drawing, but only one of them is described as a representative. That is, hereinafter, the frame 3 of the one knife holder 33 will be described.
1 and the other knife holder 34 will be described.
Since the mounting structure is the same as that described above, it is omitted.

As shown in FIGS. 2 and 3, the fixture 36 has a pair of fastening plates 37, 38, and the fastening plates 37, 38 are formed in a substantially "U" shape. This shape is determined by the relationship with the cross-sectional shape of the work machine frame 1. The two fastening plates 37 and 38 are pivotally engaged with each other at one end, and are flanged at the other end, so that they can be tightened and coupled in a state where they face each other. Flange end 37
X, 38X. This flange end 37X,
The space shape formed in a state where the surfaces 38X are brought into relative surface contact with each other corresponds to the working machine frame 31.
In other words, the cross-sectional shape of both the fastening plates 37 and 38 has a “U-shaped” or “almost L-shaped” shape obtained by dividing the cross-sectional shape of the work machine frame 31 into halves. The mutually engaging portion of the two fastening plates 37, 38 is formed of a hook-shaped portion 3 having an angular substantially C-shaped cross section with respect to one of the fastening plates 37.
7a, and the other fastening plate 38 is a fitting portion 38a which is fitted and fitted into the hook-shaped portion 37a. The fitting portion 38a is slightly rounded, and is allowed to rotate in a cross section within the hook-like portion 37a, and more specifically, to pivot only at an appropriate angle.

The fixture 36, in other words, is fastened by three sets of bolts 41 and nuts 42 as fastening means for fastening the franc ends 37X, 38X of the fastening plates 37, 38. , And a washer 43 is appropriately used.

The knife holder 3 arranged at the center of the working machine frame 31 is attached to the working machine frame 31 as follows. That is, as shown in FIG. 4, four reinforcing plates 44, 45 are welded to the mounting position of the knife holder 3 of the working machine frame 31, and furthermore, webs 46, 45 are provided on both ends of the reinforcing plates 44, 45. 47 are welded. Then, receiving plates 49 and 50 are welded to the upper and lower ends of the webs 46 and 47, and the knife holder 3 has six sets of bolts 52 and nuts 5 at the front end.
3 fastened to the receiving plates 49, 50. Specifically, three sets of the bolts 52 and the nuts 53 are arranged in parallel with each other so as to sandwich the frame 31 in front and rear. A collar 54 such as a steel pipe is fitted into each bolt 52. In addition, the mast 9 is the knife holder 3.
Are tightened and attached to the front end position by four sets of right and left, eight sets of bolts and nuts in total.

Next, the operation of adjusting the distance between the knife beams 6, 21, and 22 in the subsoiler working machine will be described. The interval adjustment work is performed by knife beams 21 on both sides,
This is performed by moving the knife holders 33 and 34 supporting the 22 along the work machine frame 31. Specifically, first, in each fixture 36 for fixing both knife holders 33 and 34 to the work machine frame 31, three sets of bolts 41 and nuts 42 held by the fixtures are loosened, and each knife holder 33 and 34 is released. Is moved inward or outward along the frame 31, and the three knife beams 6, 21, 2
Adjust so that the intervals of 2 are equal. When the adjustment of the interval is completed, each bolt 41 and nut 42 that have been loosened
Again.

As described above, in the subsoiler working machine of the present invention, the knife holders 33 and 34 can be moved immediately by loosening the tightened state of the three sets of bolts 41 and nuts 42, and the bolts and nuts can be moved. By retightening, the knife holders 33 and 34 can be fixed to the work machine frame 31.

Incidentally, in the subsoiler working machine of the present invention, the working machine frame 31 is a pipe member having a rectangular cross section, and each surface of the pipe member is arranged in a direction inclining. Since the mutual pivot points of the fastening plates 37, 38 are located near the lower apex of the cross-sectional shape, the fastening plates 37, 38 can be smoothly loosened or tightened without any interference with the work machine frame 31. Work can be performed, and since the bolts 41 and nuts 42 as fastening means are located on the upper side of the working machine frame 31, the work of loosening and tightening is extremely easy.

The hook-like portion 3 is attached to one end of one of the fastening plates 37.
7a is formed, and one end of the other fastening plate 38 is
8a, and the insertion portion 38a is accommodated in the hook-like portion 37a and is allowed to pivot by a predetermined angle, so that both members can be pivoted without requiring a member such as a pin. It is wearing-bonded.

Although the above-mentioned sub-soiler working machine has been described as having three knife beams, the number of knife beams and the form of their arrangement can of course be variously changed as necessary. Further, the sectional shape of the working machine frame 31 is not limited to a rectangular shape, but a pipe member having a rectangular sectional shape is advantageous in terms of cost such that a commercially available pipe member can be used simply by cutting it to a required length.

It is to be noted that, in addition to the one where the mutual engaging portions of the fastening plates 37 and 38 are pivotally connected, the mutual engaging portions are integrated and the flange end is always used by utilizing the elasticity of the material forming them. It is also possible to give the habit of opening the part, and loosen the bolts and nuts so that the flange ends open naturally (FIG. 2 (d)).

[0028]

As is apparent from the above description, in the subsoiler working machine according to the present invention, the mounting means for mounting the knife holder to the working machine frame has a shape following the outer shape of the working machine frame. Since the object is divided or formed into a shape close to the division, the two can be joined and integrated at the end of the flange, so the work of fastening and opening is extremely simple, and the spacing of the knife beam is easily adjusted. There are excellent effects such as being able to.

[Brief description of the drawings]

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

FIG. 2 is a view showing a knife holder provided on both sides of the subsoiler working machine shown in FIG. 1 and a structure around the knife holder;
(A) is a plan view, (b) is a front view, (c) is a side view,
(D) is sectional drawing of the modification of an attachment member.

FIG. 3 is an enlarged view of the configuration shown in FIG. 2 and a diagram for explaining movement;

FIG. 4 is a diagram showing a knife holder provided in a central portion of the subsoiler working machine shown in FIG. 1 and a structure around the knife holder;
(A) is a plan view, (b) is a front view including a partial cross section,
(C) is a side view including a partial cross section.

FIG. 5 is a perspective view of a conventional subsoiler working machine.

FIG. 6 is a front view of the subsoiler working machine shown in FIG.

FIG. 7 is a plan view of the subsoiler working machine shown in FIGS. 5 and 6;

8 is a side view including a partial cross section of the subsoiler working machine shown in FIGS. 5 to 7. FIG.

[Explanation of symbols]

 3, 33, 34 Knife holder 6, 21, 22 Knife beam 9 Mast 31 Frame (apparatus main body) 36 Fixture (attachment means) 37, 38 Fastening plate 37a Hook-shaped portion (of fastening plate 37) 37X Flange end 38a ( Insertion portion of fastening plate 38) 38X Flange end 41 Bolt 42 Nut

Claims (4)

[Claims] 1. A subsoiler working machine comprising a knife holder for supporting a knife beam and a knife holder attached to a working machine frame, which is a component of the working machine, via a mounting means, wherein the mounting means comprises: A pair of fastening plates capable of surrounding the periphery of the working machine frame, and one end of each of the fastening plates is engaged with each other, and a flange portion is formed at the other end of each other. A sub-soiler working machine characterized in that the parts can be bolted to each other. 2. The work machine frame is a pipe member having a square cross section, and two ridge lines having the square cross section are at the top and the lower part, and each surface of the pipe member is an inclined surface. The subsoiler working machine according to claim 1, wherein 3. A hook-like portion is formed at one end of one of the pair of fastening plates, and the other end of the pair of fastening plates is turned at an appropriate angle of the hook-like portion at one end of the fastening plate. The sub-soiler working machine according to claim 1 or 2, wherein a fitting portion that allows movement is formed, and the two fitting portions are configured to be rotatable with each other when the flange portions are released. 4. An end portion of the pair of fastening plates opposite to the flange portion is in a state of being fixed to each other, and the flange end portion can be opened by elasticity of the fastening plate. Subsoiler working machine.