JPS601521Y2 - Device to prevent straw, grass, etc. from wrapping around plow-like tools - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for preventing straw, grass, etc. from becoming entangled in a plow-like working tool such as the shank of a subsoil crusher.

For example, it is well known that a tractor is used to tow a subsoil crusher when performing subsoil crushing and expanding work in a field.

However, in the past, when the above-mentioned work was performed in a field where cut straw, grass, etc. were scattered, the straw, grass, etc. would wrap around or become entangled with the shank of the crusher, causing the traction The reality was that the resistance had increased so much that it was not possible to work efficiently.

In view of the above-mentioned circumstances, the present invention was developed as a result of intensive research to prevent straw, grass, etc. from becoming entangled or entangled with plow-like tools such as the shank of a subsoil crusher, thereby preventing an increase in traction resistance.
The purpose is to provide a device that prevents straw, grass, etc. from becoming entangled in plow-like tools, which allows work to be carried out efficiently. In a tool that is towed by a tractor, a rake that rolls on the ground around a horizontal axis to move straw, grass, etc. to the side is placed in front of the tool with respect to the direction of travel in plan view. The rake is arranged in an inclined manner and is characterized by having means for urging the rake in the direction of contact with the ground.

Hereinafter, embodiments of the present invention will be described based on the drawings of FIGS. 1 to 5. Reference numeral 1 denotes a working machine, exemplified by a subsoil crusher, which is attached to a tractor via a three-point link 2 so that it can be raised and lowered. It is.

Reference numeral 3 denotes a pair of left and right machine frames of the working machine 1. Support arms 4 are provided outwardly projecting from the front end of each machine frame 3, and a lower link 5 is detachably connected to each arm 4.

Reference numeral 6 denotes a machine frame connecting member, which connects the front ends of each machine frame 3.

A top mast 7 is attached to the front end of each machine frame 3 and is detachably connected to a top link 8, and the spear door and each machine frame 3 are connected by a support link 9.

Reference numeral 10 denotes a work tool holding cylinder having an axis in the vertical direction, and is fixed between the rear ends of each machine frame 3.

Reference numeral 11 denotes a plow-like working tool, exemplified by a shank, which is inserted into the holding cylinder 10 so as to be movable and adjustable in the axial direction of the cylinder 10, and is fixed by an insertion tool 12.

The working tool 11 has a sharp front end as a blade part 13, and is equipped with a chisel 14 at the lower part.
A bullet 16 is connected to the chain 15 via a chain 15.

17 is a rake swinging arm, whose rear end is attached to the machine frame 3 on the right side.
It is rotatably and removably attached to a pin 18 fixed to the inside of the front end thereof, and extends diagonally downward in the front direction.

Then, a rake 19 is attached to the front end of the arm 17,
A rake 19 is vertically swingable in front of the work tool 11.

Reference numeral 20 denotes a disc-shaped main body of the rake 19, which has a support shaft 22 in its center via a bearing 21, and by detachably attaching the support shaft 22 to the swing arm 17, the rake 19 can be moved in the traveling direction. It is rotatable around horizontal axes that intersect at an angle of approximately 45 degrees.

A large number of tooth rods 23 are detachably attached radially to the outer periphery of the main body 20, and the rotation of the rake 19 moves straw, grass, etc. diagonally forward to the right, that is, to the right side of the working machine 1. There is.

Reference numeral 24 designates an ammunition mounting bracket whose rear end is fixed to the inner surface of the right support column 25 constituting the top mast 7 and extends forward.

Reference numeral 26 denotes a spring made of a coil spring or the like, which is interposed in a spring-like manner between the front end of the bracket 24 and the middle part of the swinging arm 17 in the longitudinal direction, and presses the rake 19 in the direction of contact with the ground.

A coulter 27 is provided in front of the work tool 11, and its pair of stays 28 are detachably attached to each machine frame 3. The coulter 27 shears the soil together with grass roots, etc.
I try to minimize the resistance that is encountered.

Reference numeral 29 denotes a gauge wheel, and its stay 30 is inserted and fixed into a cylindrical holder 31 fixed to the right machine frame 3 so as to be adjustable in vertical movement.

According to the embodiment configured as described above, when subsoil crushing and expanding work is performed in a field where cut straw, grass, etc. are scattered, the rake 19 located at the front side of the work tool 11 will rotate. At the same time, straw, grass, etc. are moved diagonally forward to the right by the tooth rod 23, and a grass collection row is created on the right side of the working machine 1.

Therefore, the work can be carried out efficiently without increasing the traction resistance due to straw, grass, etc. being wrapped around or entangled with the work tool 11 of the work machine 1.

Furthermore, even if there are irregularities in the field, since the rake 19 is pressed in the liquid sealing direction by the bullet 26, the rake 19 follows the irregularities well and the grass collection ability of the rake 19 is not degraded.

Furthermore, after the subsoil crushing and swelling work is completed, straw, grass, etc. in the field can be collected by simply picking up the grass collection rows.

FIG. 6 shows a comparative example of the present invention, in which the rake 19 is not rotatable, and the rectangular main body 20 is moved to the swing arm 17.
It is removably fixed to the work tool 11 and positioned in front of the work tool 11 so that the longitudinal direction of the main body intersects the direction of movement at an angle of approximately 45 degrees.

A large number of tooth rods 23 are fixed downwardly to the lower end of the main body 20.

According to the comparative example, during subsoil crushing work, the rake 19 moves straw, grass, etc. to the left side by pulling the tractor.
Create a row of grass to collect on the left side of work equipment 1.

In the embodiment, the shank of a subsoil crusher was used as the plow-like tool, but a plow or the like may also be used as the tool.

In addition, in the embodiment, only one self-rotating rake is provided on the working machine side, but a plurality of drive-type rakes are provided on the tractor side, and the rakes are driven by power transmission from the tractor's PTO shaft, etc. You can do it like this.

Further, in the embodiment, a coil spring is used as the bullet, but a fluid cylinder device or the like may be used as the bullet.

The present invention is as described above, and a rake is provided on the front side of a plow-like tool so as to be inclined with respect to the traveling direction in plan view, so that cut straw, grass, etc. in front of the tool can be removed from the side. Since the work tool is moved in a straight line, there is no risk of straw, grass, etc. wrapping around or getting tangled with the work tool, increasing the traction resistance, and the work can be carried out efficiently.

Furthermore, since the rake is designed to roll on the ground around the horizontal axis, it is possible to move straw, grass, etc. to the side side smoothly and smoothly by moving the rake on the ground. In addition, there is less resistance acting on the rake, and the rake will not wear out or be damaged prematurely.

In addition, since the rake is pressed in the direction of contact with the ground, even if the ground is uneven, the rake follows the ground well and the grass collection ability of the rake does not deteriorate.

Furthermore, since we make examples of collected grass such as straw and grass during work, we can collect straw, grass, etc.
You can easily pick up grass, etc.

The present invention has the above-mentioned various advantages, and its structure is simple, so it is very useful.

[Brief explanation of the drawing]

Fig. 1 is a right side view showing an embodiment of the present invention, and Fig. 2 is a right side view showing an embodiment of the present invention.
Figure 3 is an enlarged perspective view of the main part of Figure 1, Figure 4 is a left side view of the rake, Figure 5 is a view from ■-■ of Figure 4.
A sectional view taken along the line, and FIG. 6 is a perspective view of essential parts showing a comparative example of the present invention. 1... Work equipment, 11... Plow-like work tool, 17...
Rake swinging arm, 19... rake, 26... bullet machine.

Claims (1)

[Scope of utility model registration request] When a plow-like working tool such as the shank of a subsoil crusher is towed by a tractor, straw, grass, etc. is moved to the side by rolling around a horizontal axis on the ground in front of the working tool. 1. A device for preventing straw, grass, etc. from becoming entangled in a plow-like work tool, characterized in that the rake is arranged in an inclined manner with respect to the traveling direction in plan view, and is provided with means for biasing the rake in the direction of contact with the ground.