JPH0453208Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a rotary working machine in which a rake body is provided between opposing side covers and parallel to the rotary shaft.

[Conventional technology]

Conventionally, rotary working machines for tillage have a soil leveling function by supporting a rake body equipped with a crushing rake blade in parallel to a rotary shaft with a rotary claw attached to the side cover of the rotary so as to be able to move up and down. Some improvements are known (for example, Japanese Patent Publication No. 18121/1983).

[Problems to be solved by the present invention] However, in conventional rotary work machines in which both ends of the rake body are supported by side covers formed of iron plates, etc. of the rotary work machine, the rake body cannot be rotated using the operating lever. When rotating the rake, there was a problem in that the supporting portion of the rake body was twisted and could not be rotated smoothly.

The present invention was devised to solve the above-mentioned problems, and although a rake body equipped with a plurality of rake claws is rotatably supported between opposing side covers, When rotating the rake body, it is possible to rotate the rake body smoothly without twisting or the like occurring in the support part, and the rotated rake body can be reliably fixed at the desired position in a stable state. The purpose is to provide a rotary work machine that can

[Means for solving problems]

The technical means adopted by the present invention to solve the above problems is that in a rotary working machine in which a rake body is provided parallel to the rotary shaft between opposing side covers, both ends of the rake body are attached to the side cover. The rotating operation lever provided on the mounting portion and the rotating arm of the rake body are connected via a fastener inserted through an arc-shaped long hole provided in the side cover. The rake body and the attachment part support the rake body rotatably with the side cover sandwiched between them, and the rake body whose rotation is adjusted by operating the rotation operation lever is fixed to the side cover using the tightening tool. This feature is characterized by the fact that it is configured as follows.

[Effect of invention]

Therefore, according to the present invention, the rake body, whose both ends are supported by the mounting portion inserted through the side cover, is inserted into the elongated hole of the side cover when the rotation operating lever provided on the mounting portion is rotated. A rotating arm connected via a tightening device rotates the rake body in conjunction with the rotating operation lever. At this time, the rake body rotates with the side cover sandwiched between the rake body and the mounting part, so even if the rake body is supported by the side cover, the rake body will not twist and rotate smoothly. Rotate to.
If the tightening tool is tightened at the rotationally adjusted position, the side cover is strongly held between the rotating arm and the tightening tool, so that the rake body can be stably fixed to the side cover at a desired position.

〔Example〕

Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Reference numeral 1 denotes a rotary working machine that is attached to the rear of an agricultural tractor 2 via a three-point linkage mechanism so that it can be raised and lowered freely. It is constructed in The rotary shaft 4 is connected to a chain case 5 provided on one side of the machine body, and uses a side drive system in which the rotary shaft 4 rotates in forward and reverse directions by the power transmitted from the PTO shaft of the agricultural tractor 2 through the gear case 6. ing.

7 is a side cover that covers the side surface of the rotary working machine 1; 8 is a rake body disposed parallel to the rotary shaft 4 between the opposing side covers 7;
The rake body 8 is formed by a plurality of rake pawls 10 whose base ends are inserted and fixed into square pipes 9 in the left and right direction. A support pipe 11 is attached and fixed to both ends of the square pipe 9.
1 is supported by a mounting portion 12 inserted through the side cover 7. That is, the mounting portion 12 is formed by screwing a hexagonal bolt-shaped support shaft 14 into a mounting seat 13 provided on the side cover 7 from the side, and the tip of the support shaft 14 is inserted into the support pipe 11. The bolt head 15 on the proximal end abuts the mounting seat 13 from the outside, sandwiching the side cover 7 from both sides in a sandwich-like manner. A rotation operating lever 17 is rotatably attached to a mounting shaft 16 protruding from the bolt head 15 via a retaining ring 18. On the other hand, the rake body 8 has a rotating arm 19 projecting from it, and the rotating arm 19 and the tip side of the rotating operation lever 17 pass through an arcuate long hole 20 provided in the side cover 7. They are interlocked and connected by a tightening tool 21. The tightening tool 21 has one end attached to the rotating arm 1.
A fixing nut 23 is screwed onto the other end of the bolt 22 that protrudes from the elongated hole 20 and passes through the rotary operation lever 17. Further, a collar 24 is fitted onto the bolt 22, and the side cover 7 is sandwiched between the collar 24 and the rotating arm 19. When the rotation operating lever 17 is operated, the rake body 8 rotates in conjunction with this, and when the fixing nut 23 is tightened, the collar 24 presses the side cover 7 to move the rake body 8 to an arbitrary position. It can be fixed to the side cover 7. In this manner, the rake body 8 is rotatable with the side cover 7 sandwiched between the rake body 8 and the mounting portion 12.

Reference numeral 25 denotes a rear cover that covers the upper part of the rotary working machine 1, and a hinge 28 is attached to the rear end of the front rear cover 26 via a mounting bolt 27, and the rear rear cover 30 is rotatable on the mounting shaft 29 of the hinge 28. It is locked to.

A ridge erector mounting hole 31 is formed on the front edge of the rear rear cover 30, and a bolt 3 is inserted into the mounting hole 31.
A lid 33 is removably provided through the hole 2, and a mud splash prevention plate 34 having a width B wider than the width A of the mounting hole 31 is bent inward on the lid 33. has been done. When the lid body 33 is closed, the mud splash prevention plate 34 covers the lower part of the hinge 28 to prevent splashed mud water from splashing outward from the gap near the mounting hole 31 during plowing work etc. I'm starting to do that. Furthermore, by forming notches 35 on both sides of the mud splash prevention plate 34, even if the hole is wider than the mounting hole 31, mud can be prevented by tilting the cover body 33 as shown in FIG. Anti-splash plate 34
By inserting the lid body 33 into the mounting hole 31, the lid body 33 can be easily mounted without being interfered with by the periphery of the mounting hole 31. 26a is a mudguard plate provided on the front rear cover 26.

The drive shaft 36 that transmits power from the gear case 6 to the chain case 5 has an intermediate portion 37 formed of a pipe material, and small holes 38 formed along the axis at both ends, as shown in FIG. 10A. The chain case 5 and gear case 6 are communicated with each other, and the breather 39 only needs to be provided on the chain case 5. In addition, in the case where the entire drive shaft is made of ordinary shaft material, a small hole 42 is formed from the end surface of the drive shaft 40 on the chain case 5 side through the axis of the drive shaft 40 to the inside of the sealed bearing 41. Just set it up.

In the above configuration, when performing rotary work, if the rotation operation lever 17 is operated, the rake body 8 rotates in conjunction with this, and the fixing nut 2
3, the rake body 8 can be fixed at a desired position. Therefore, when the rotary shaft 4 rotates normally, the rake body 8 is rotated upward and the rotary pawl 3 is tightened.
and the rake claw 10, and when the rotary shaft 4 is reversed, the rake body 8 can be rotated downward to narrow the gap with the rotary claw 3.
The rake body 8 can always be adjusted to an appropriate position according to the working conditions, and plowing work can be carried out efficiently.
When the rake body 8 rotates, the rake body 8 rotates with the side cover 7 sandwiched between the support pipe 11 of the rake body 8 and the support shaft 14 of the mounting part 12, so that twisting etc. will not occur during the rotation process. The rotation of the rake body 8 can be smoothly adjusted without causing any problems. Then, if you tighten the fixing nut 23 of the tightening tool 21,
Since the collar 24 presses the side cover 7 sandwiched between the collar 24 and the rotating arm 19, the rake body 8 can be stably fixed at a desired position.

Furthermore, even if the ridge erector mounting hole 31 is formed in the rear cover 25, the lid body 33 formed with the mud splash prevention plate 34 reliably prevents muddy water from splashing outward during plowing work etc. can do. Furthermore, since the intermediate portion 37 of the drive shaft 36 is made of pipe material, the weight can be reduced, and since the breather 29 only needs to be provided on the chain case 5 side, the structure is simple and costs can be reduced. can be achieved.

[Effect of idea]

In short, the present invention is a rotary working machine in which a rake body is provided parallel to the rotary shaft between opposing side covers, in which both ends of the rake body are supported by a mounting part inserted through the side cover. The rotation operation lever provided and the rotation arm of the rake body are connected via a tightening tool inserted through an arc-shaped long hole provided in the side cover, so that the rake body and the mounting portion are connected to the side cover. The rake body is rotatably supported in the sandwiched state, and the rake body whose rotation is adjusted by operating the rotation operating lever is fixed to the side cover using the above-mentioned tightening tool, so the rotation operating lever can be operated. Then, the rotating arm connected via the fastening tool inserted through the elongated hole can rotate the rake body in conjunction with the rotating operation lever. At this time, the rake body and the mounting part rotate with the side cover sandwiched between them, so even if the rake body is supported by the side cover, the rotation can be adjusted smoothly without twisting the rake body. I can do it. By tightening the tightening tool, the rake body can be stably fixed to the side cover at the desired position, so the rake body can always be adjusted to the appropriate position according to the working conditions and the plowing work can be carried out smoothly. It is something that can be done.

[Brief explanation of drawings]

The drawings show an embodiment of the rotary work machine according to the present invention, in which Fig. 1 is an overall side view, Fig. 2 is a plan view of the same, Fig. 3 is a vertical sectional view of the main parts, and Fig. 4 is a cross-sectional view of the main parts. Figure 5 is a side view of the rotating arm, Figure 6 is an overall perspective view, Figure 7 A and B are front and side views of the ridge erector mounting hole, and Figure 8 A, B and C are 9 is a front view, a side view, and a plan view of the lid, FIG. 9 is an explanatory diagram showing the operation of attaching the lid, and FIGS. 10A and 10B are sectional views of the drive shaft, respectively. In the figure, 4... Rotary shaft, 7... Side cover, 8... Rake body, 12... Mounting part, 17...
Rotating operation lever, 19... Rotating arm, 20...
Long hole, 21... is a tightening tool.

Claims (1)

[Scope of utility model registration request] In a rotary work machine in which a rake body is provided parallel to the rotary shaft between opposing side covers, both ends of the rake body are supported by a mounting part inserted through the side cover, and a rotating operation lever provided in the mounting part is connected to the rake body. ,
The rotating arm of the rake body is connected via a tightening tool inserted through an arc-shaped long hole provided in the side cover, and the rake body is rotated with the side cover sandwiched between the rake body and the mounting part. A rotary work machine characterized in that a rake body which is movably supported and whose rotation is adjusted by operating a rotation operating lever is fixed to a side cover using the above-mentioned tightening tool.