JPS591Y2 - Driven tillage machine - Google Patents

Description

[Detailed description of the invention] This invention relates to a drive-type tilling machine that performs tilling, crushing, etc. by rotating a tilling shaft having a large number of claws around a horizontal horizontal axis, and particularly relates to a rotary tilling machine of the working machine. This invention relates to an improvement in a working machine equipped with a means for effectively preventing foreign objects such as grass and straw from becoming entangled.

If foreign objects such as grass become entangled in the rotary tilling section of a drive-type tiller, not only will it create a large amount of resistance and beautiful work cannot be guaranteed, but if the entanglement continues to grow, the durability of the bearing section of the tilling shaft will deteriorate.

In order to solve this problem, means for preventing entanglement of foreign objects or means for cutting foreign objects have been added, but in the conventional example, the structure is complicated and effective removal or cutting of foreign objects cannot be expected.

In view of the above-mentioned circumstances, the inventor of the present invention has conducted intensive research and found that in a drive-type tilling machine in which a tilling shaft having a plurality of claws rotates around the axis, the long end of the strip of the tenant body made of elastic strip plate material A foreign object remover having a mounting part formed through a stepped part is attached to a fixed frame that rotatably supports a tilling shaft, and the longitudinal direction of the tenant body is in the vertical direction, and a space is created between the fixed frame and the tenant body. It is attached via the attachment part in such a way, and further,
By developing a drive-type tilling machine characterized in that at least a part of the borrowing body of the foreign object remover is located close to the adjacent claw and within the rotation trajectory of the claw, We have succeeded in effectively preventing foreign matter from getting entangled in the tiller, and in turn completely preventing oil leakage from the bearing of the tiller shaft.

Hereinafter, a preferred example of the present invention will be described in detail with reference to the drawings.

In the drawings and the following description, the tiller will be described in detail as a side-drive driven tiller and a tractor-pulled type, but a center-drive type or a self-propelled type can also be used.

In FIG. 1, numeral 1 denotes a gear box in which a bevel gear mechanism is built.

2 is an input shaft to which power from the tractor PTO shaft is transmitted.

3 and 4 are a pair of left and right support shafts, and gearbox 1
It extends outward from both side walls.

At least one of the support shafts 3 and 4 is a cylindrical shaft, through which the output shaft 5 in the gear box 1 is inserted.

Of course, both shafts 3 and 4 may be cylindrical shafts. Reference numerals 6 and 7 denote a pair of left and right side frames, which are detachably attached to the respective outer ends of the support shafts 3 and 4, preferably by means of francisco bolt joining means 8 and 9, and the frames 6 and 7 are substantially opposed to each other. ing.

Reference numerals 10 and 11 denote a pair of left and right bearing means, which are provided opposite to each other at the lower portions of the side frames 6.7.

Reference numeral 12 denotes a tilling shaft, on which a plurality of claws 13 are attached at predetermined intervals in the axial direction and extending in the radial direction.

The tilling shaft 12 is substantially parallel to the support shafts 3 and 4, and is rotatably installed on a pair of left and right bearing means 10.11.
Preferably, it is removable by means of flange bolt connections 14,15.

In addition, among the plurality of claws 13 on the tilling shaft 12, the claws 1 at both shaft ends
In order to eliminate residual plowing caused by the bearing means 10 and 11, bending claws are preferably used as shown in the figure.
The nails may have any shape, for example, flower-shaped nails.

Reference numeral 16 denotes a transmission case, which is made up of a transmission case cover 17 attached to the side frame 7, and inside this transmission case 16, a transmission means 18 such as a winding transmission means such as a chain or belt or a gear transmission means is provided. , the output shaft 5 and the short shaft 19 of the tilling shaft 12 are interlocked.

Reference numeral 20 denotes a foreign matter remover, which is made of an elastic band plate material such as a metal band plate or a hard plastic band plate.
The hole 21 is installed at the long end of the band 0a via the step 20d.
A flange-shaped mounting portion 20b is formed.

This foreign object remover 20 is removably attached to the side frame 6.7, which is a fixed frame that rotatably supports the tilling shaft 12, with bolts 22, etc., but in this embodiment, as shown in FIG. The mounting portion 20b is stacked on the inner surface of the fixed frame so that the longitudinal direction of the mounting portion 20b is in the vertical direction and a space is created that penetrates in the front-rear direction between the side frame 6.7, which is a fixed frame, and the tenant body 20a. They are also attached with bolts 22, and furthermore, they are attached so that at least a part of the borrowing body 20a of the foreign object remover 20 is located close to the adjacent pawl 13 and within the pawl rotation trajectory, and here, The band longitudinal edge portion 20C of the borrowing body 20a has a fixed blade function.

As shown in FIG. 2, it is preferable that one of the holes 21 be a long hole in order to assist the elastic deformation of the main body 20a of the foreign object remover 20.

Further, the borrowing body 20a may be curved in the longitudinal direction of the band, and the side edges 20C of the portion 20C may have sharp cutting edges on both sides.

According to the specific example of the present invention configured as described above, when the drive-type tilling machine A is towed by a tractor and the power is transmitted to the tilling part B consisting of the claws 13 and the tilling shaft 12, the tilling shaft 12 is rotated horizontally and horizontally around its axis, and plowing and work on the frame are carried out.

If there is long foreign matter such as grass or straw during this tilling work, the nail 1
3, the object 20a of the foreign object remover 20 is moved around with its longitudinal direction in the vertical direction, and at least a part of the object 20a is brought close to the claw 13, and , since it is provided on the fixed side of the claw rotation locus, it is rubbed by the relative movement of the claw 13 and the borrowing body 20a of the foreign object remover 20, especially the longitudinal side edge portion 20C of the band, and the claw 1
3 to prevent tangling.

In particular, since the foreign matter remover 20 has a space formed between its borrowing body 20a and the fixed frame, the borrowing body 20a easily deforms elastically during the sliding contact, so that the amount of foreign matter is not affected. This would effectively eliminate the debtor 20
Even if a foreign object becomes entangled in a, it will vibrate due to the elasticity of the space and will fall and be removed.

Furthermore, since the main body 20a of the foreign object remover 20 is attached to the fixed frame in the vertical direction, the longitudinal side edge portion 20C of the main body 20a becomes a so-called fixed blade and cooperates with the claw 13, which becomes a so-called rotary blade. The long foreign object will be cut with
The band width of 0 H becomes the front-back direction and fully opposes each other, and furthermore, the cut thin foreign matter escapes through the space.

Therefore, by preventing the foreign matter from growing, the oil seal of the bearing means 10.11 is not damaged, and the foreign matter is also prevented from becoming entangled with the tiller shaft 12, resulting in improved workability.

Moreover, by making the band longitudinal side edge portion 20C, which has a so-called fixed blade function, of the foreign matter remover 20 into a sharp shape, the foreign matter cutting function can be promoted.

In the present invention, the borrowing body of the foreign object remover, which is adjacent to the claw and at least partially located within the rotation trajectory of the claw, is attached to the fixed frame with a space created between the fixed frame and the borrowing body is fixed. The claws of the blade function as a so-called rotary blade to cut long foreign objects into smaller pieces and prevent them from becoming tangled.

Furthermore, since the borrowing body is attached to the fixed frame with its longitudinal direction facing up and down, it can effectively perform the cutting function and can sufficiently resist cutting resistance.

Furthermore, since the main body of the foreign matter remover made of an elastic material has a space between it and the fixed frame, it can perform the cutting function regardless of the amount of foreign matter, and it can be easily elastically deformed, so it can effectively remove foreign matter. It can be brushed off.

In addition, referring to FIGS. 3 and 4 of the drawings, a case where the tilling claws 13 are modified is illustrated.

Note that the present invention described above can also be applied to FIGS. 3 and 4.

In Figures 3 and 4, a saw blade-shaped uneven curved surface is formed on the blade edge 13a of the tilling claw 13 attached to the tilling shaft 12, and grass, straw, etc. caught on the blade edge 13H during tilling are removed from the soil. to be buried.

In other words, if a foreign object gets caught on the uneven curved surface 13b of the blade edge 13a and the blade 13 rotates counterclockwise in FIG.
Grass and the like are slid outward in the radial direction by the resistance force against the tilling force shown by the arrows and buried in the soil, which becomes fertilizer.

[Brief explanation of the drawing]

Figure 1 is a partially omitted rear view showing an example of the present invention, Figure 2 is a perspective view of an example of an elastic plate, Figure 3 is a side view of a tilling machine, and Figure 4 is the tiller used in Figure 3. It is an enlarged view of a nail. 6.7...Support fixing frame (side frame), 1
2... Cultivating shaft, 13... Cultivating claw, 20
... Foreign object remover, 20 a ... Band main body, 20 b ... Mounting part, 20 d ...
Stepped part, D...Space, 22...Mounting with bolts.

Claims (1)

[Scope of utility model registration request] In a drive-type tilling work machine in which a tilling shaft having a plurality of claws is rotated around its axis, a foreign matter removing tool is provided, in which a mounting part is formed at the long end of a borrowing body made of an elastic band plate material via a stepped part. is attached via the mounting portion to a fixed frame rotatably supported by the tilling shaft so that the longitudinal direction of the tenant body is in the vertical direction and a space is created between the fixed frame and the tenant body,
Furthermore, the drive-type tilling machine is characterized in that at least a part of the borrowing body of the foreign object remover is close to an adjacent pawl and is located within the rotation trajectory of the pawl.