JP3076486B2 - Tillage axis - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a claw holder protruding for mounting a tilling claw on a tilling shaft of a rotary.

[0002]

2. Description of the Related Art The configuration of a conventional tilling shaft is, for example, shown in FIG.
As shown in FIG. 5, a claw holder 22
Are protruded in the axial direction at predetermined intervals radially, and the claw holder 22 is formed by combining two plate members bent in a U-shape in plan cross section.
An insertion portion 23 having a substantially uniform rectangular shape in a planar cross section is formed in the longitudinal direction. Then, the mounting portion of the tilling claw is inserted into the insertion portion 23, and the claw holder 22 and the cultivating claw are fastened and fixed with a set bolt including a bolt and a nut.
It is configured such that the tilling operation can be performed by rotating 1. As another configuration, a configuration is known in which a flange is protruded from a tilling shaft, and a tilling claw is fastened and fixed directly to the flange with a plurality of set bolts.

[0003]

However, in the above-mentioned prior art, in order to improve the soil breaking effect at the time of tilling work, a plurality of claw holders are provided on the same rotation surface on the outer circumference of the tilling shaft, and tilling claws are mounted. Although the configuration is good, it is impossible to provide a plurality of claw holders on the same rotating surface because the claw holders interfere with each other. Also,
In the configuration in which the cultivating shaft is provided with the flange, the cultivating claw cannot be easily attached and detached because one cultivating claw is directly tightened and fixed to the flange with a plurality of set bolts. Therefore, an object of the present invention is to configure a tilling shaft that has a plurality of claw holders on the same rotation surface and can easily attach and detach a tilling claw to and from the claw holder.

[0004]

Means for Solving the Problems As means for solving the above problems, the present invention is configured as follows.
You. In claim 1, it is welded and fixed to the outer periphery of the tilling shaft 1.
Disk-shaped flange 2 provided on one side of the flange 2
Has a substantially uniform cross section with a predetermined width in the rotation direction.
The open side is the flange 2 side.
And fix it with the claw holder 3 and flange 2
The insertion portion 6 is formed in a rectangular shape, and the insertion portion 6 has a radial direction.
Orientation, the outer end of the claw holder 3 and the outer end of the flange 2
One end of the claw holder 3 is fixed so as to substantially match.
The tilling shaft 1 is also fixed by welding .

[0005] In the second aspect, the tillage according to the first aspect is used.
On the shaft, protruding from the outer circumference of the tilling shaft 1 and predetermined in the rotation direction
U-shaped claw holder 3 having a substantially uniform cross section having a dimension width of
A flange 2 protruding from the outer periphery of the tilling shaft 1
Has four claw holders, and two claw holders on one side.
Displace the rudder and set the claw holder on the front and back of the flange 2.
-3 is a shifted position that does not match .

[0006]

Next, the operation will be described. Attach multiple tilling claws to the same rotating surface of the tilling shaft by tightening and fixing tilling nails to each of a plurality of claw holders with set bolts on flanges protruding at predetermined positions on the tilling shaft The crushing property is improved by the rotation of the plurality of tilling nails on the same rotation surface, and the tilling nails can be easily attached and detached.

[0007]

Next, embodiments of the present invention will be described. FIG.
FIG. 2 is a side sectional view of the tilling shaft according to the present invention, FIG. 2 is a side sectional view of the same, and FIG. The configuration of the tilling shaft of the present invention will be described with reference to FIGS. On the outer periphery of the tilling shaft 1 that is horizontally mounted on a rotary, flanges 2, 2,.
Is fixed at right angles to the axis, and has a substantially uniform cross section in plan cross section having a width of a predetermined dimension on both side surfaces of the flange 2.
A plurality of U-shaped claw holders 3 are fixedly provided.

The U-shaped claw holders 3.3
... is such that the open side is on the flange 2 side, that is, the insertion section 6 having a square cross section between the claw holder 3 and the flange 2.
The insertion portion 6 faces in the radial direction, and the claw holder 3
Are fixed so that the outer end of the flange 2 substantially coincides with the outer peripheral end of the flange 2, and the flange 2 and the claw holders 3, 3,.
・ In the insertion part 6,6 ...
5 can be inserted, and the claw support 4
Is composed. The claw holders 3, 3 ...
Are fixed to the cultivation shaft 1 and the flange 2 by welding.

On one side of the flange 2, half of the nail holders 3 fixed to one flange 2 are fixed, and the nail holders 3, 3 fixed on one side are shifted so as not to interfere with each other. In this embodiment, four claw holders are provided on one flange 2, and about 9
The nail holders 3 are arranged so as to be shifted by 0 ° so that the claw holders 3 do not coincide with each other on the front and back of the flange 2 and are arranged at a position shifted by 180 °.
However, it is also possible to make a configuration in which one side is shifted by 180 ° and the other side is shifted by 90 °, and an even number of the flanges 2 can be mounted on both sides.

The flange 2 and the claw holder 3 constituting the claw support 4 are provided with a bolt insertion hole 2a and a nut insertion hole 3a which are substantially coincident with each other substantially at the center in a side view. The insertion hole 2a is
Can be inserted, and the nut insertion hole 3a of the claw holder 3 is
The nut 8 is inserted and the tilling claw 5 can be tightened and fixed.

Then, as shown in FIG. 3, the tilling claw 5 is inserted into the insertion portion 6 so that the holes 2a and 3a are aligned with the bolt insertion holes 5a opened at the base of the tilling claw 5, and The nut 8 is inserted into the nut insertion hole 3a so as not to rotate, and the bolt 7 is inserted from the bolt insertion hole 2a and screwed to the nut 8, whereby the plowing claw 5 can be tightened and fixed to the claw support portion 4. Is configured. That is, a plurality of tilling claws 5, 5,... Can be mounted on the same rotating surface of the tilling shaft 1 by a set bolt including the bolt 7 and the nut 8.

In this embodiment, as shown in FIG. 2, the claw support portions 4, 4... Provided on the same rotation surface of the cultivating shaft 1 have two right-turning tilling claws and two left-turning tilling claws. In order to be able to be attached one by one, it is configured at four locations that do not interfere with each other on the opposite sides of the flange 2 on both sides of the flange 2. Well, and the shape of the flange 2 is also substantially disk-shaped,
Alternatively, the shape may be polygonal.

The tilling claw 5 is tightened and fixed by inserting the nut 8 into the nut insertion hole 3a and inserting the bolt 7 from the bolt insertion hole 2a.
A bolt 7 may be inserted from the bolt insertion hole 2a so as not to rotate, and a nut 8 may be screwed from the bolt insertion hole 2a side.
A configuration may be adopted in which a nut insertion hole is opened in the flange 2 and a bolt insertion hole is opened in the claw holder 3.

[0014]

As described above, the present invention has the following advantages. Tilling shaft as claimed in claim 1
1, a disk-shaped flange 2 fixed by welding is provided on the outer periphery of
One side of the flange 2 has a predetermined dimension width in the rotation direction.
U-shaped claw holder 3 with a substantially uniform cross section
Fix a plurality of them so that they are on the lunge 2 side, and
3 and the flange 2 constitute an insertion section 6 having a rectangular cross section.
The inlet 6 faces in the radial direction, and the outer end of the claw holder 3 is flush.
Since it is fixed so that it substantially matches the outer peripheral end of the
A nail support part is constituted by the flange 2 and the plurality of nail holders 3.
As a result, the strength of the claw holder 3 can be increased.
In addition, the number of components can be reduced,
Can be reduced. In particular, the nail holder 3
Is fixed to the tilling shaft 1 by welding.
It was possible to improve the mounting strength.

According to a second aspect of the present invention, there is provided the tilling shaft according to the first aspect.
A predetermined size in the direction of rotation
A U-shaped claw holder 3 having a substantially uniform cross section having a normal width,
One flange 2 protruding from the outer circumference of the tilling shaft 1
There are two nail holders, two nail holders on one side
And the nail holder 3 on the front and back of the flange 2
The same position of the tilling shaft 1
It becomes possible to mount a plurality of tillage claws 5 on the turning surface.
It is possible to improve the soil breaking effect at the time of tilling work
It is.

[Brief description of the drawings]

FIG. 1 is a plan view, partly in section, of a tilling shaft of the present invention.

FIG. 2 is a side sectional view of the same.

FIG. 3 is a perspective view showing a portion of a claw support 4;

FIG. 4 is a plan sectional view showing an example of a conventional tilling shaft.

FIG. 5 is a side view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tilling shaft 2 Flange 3 Claw holder 4 Claw support part 5 Tilling claw

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A01B 33/14

Claims (2)

(57) [Claims] 1. A disk-shaped welded and fixed to the outer circumference of a tilling shaft 1.
A flange 2 is provided, and one side of the flange 2
U-shaped claw holder with a substantially uniform cross-section
Bolsters 3 so that the open side is the flange 2 side.
And insert the claw holder 3 and the flange 2 into a square section.
An insertion part 6 is formed, and the insertion part 6 faces in a radial direction and has a claw holder.
The outer end of the holder 3 substantially coincides with the outer peripheral end of the flange 2.
One end of the claw holder 3 is also fixed to the tilling shaft 1.
Tilling shaft characterized by welding and fixing . 2. The tilling shaft according to claim 1, wherein
1 which has a predetermined width in the rotational direction by protruding from the outer periphery of
Insert the U-shaped claw holder 3 with uniform cross section
Four nail holders on one flange 2 protruding from the outer circumference
And two nail holders are displaced on one side.
And the nail holder 3 does not match on the front and back of the flange 2
A tilling shaft characterized by being set at a set position .