JPS63237706A - Rear cover of rotary working machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention provides an elastic material which is attached to the rear end of a main cover that covers a rotary claw from above in a rotary working machine and is divided into a central member and left and right members. The present invention relates to a flexible rear cover having a flexible rear cover.

(Conventional Technique #i) In a rotary work machine connected to an Am tractor, side covers are generally attached to the left and right ends of a main cover that covers the rotary claw from above, and an elastic flexible cover is attached to the rear end of the main cover. A flexible rear cover is attached at the front end.

There are also models that adopt a rear cover that is divided into three parts, the center member and the left and right members.In this case, the center rear cover member and the left and right rear cover members are butted against each other or overlapped one by one, and then the rear cover is used. In order to improve the sagging of the rear cover, a weight plate or the like was attached to the rear end of each rear cover member to connect the rear ends of the rear cover.

(Problem to be Solved by the Invention) However, simply butting the center rear cover member and the left and right rear cover members together makes it difficult for the rear covers to interlock during use, and a large gap is created in the butted portions, which can cause soil damage. spills. Furthermore, even when stacked, it is difficult for the individual rear cover members to follow changes in curvature and sag occurs in some areas, so there is a problem in that soil is likely to spill out from the gaps.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to improve tracking of curvature changes of the individual rear cover members to prevent sagging at the abutting portions when a three-part rear cover is adopted.
To provide a rear cover for a rotary work machine which minimizes the occurrence of gaps and prevents soil from spilling out.

(Means for Solving the Problems) In order to solve the above two problems and achieve the object, the present invention provides a central member 6, 2 and left and right members at the rear end of a main cover 31 that covers the rotary claw 26 from above. In the rotary work machine 6, an elastic and flexible rear cover 61 which is divided into three parts 65 is attached at the front end.In the rotary working machine 6, a clamping plate in the form of an upper and lower bifurcated is attached to the rear end of each center, left and right rear cover member 62, and 65. 84 and 86 respectively, and the other rear cover member 65 adjacent to the end 84a of the clamping plate 84 attached to the rear end of one rear cover member 62 at the abutting upper portion of the rear cover members 62 and 65. It is characterized in that the rear end side portion 65a is also clamped.

Specifically, an overlapping piece 63 extends toward the ■ side at the abutting portions of the central rear cover member 62 and the left and right rear cover members 65.

(Function) Not only do the overlapping pieces 63 extend downward at the abutting portions of the central rear cover member 62 and the left and right rear cover members 65, but also the individual rear cover members 62, 65
Upper and lower bifurcated clamping plates 84, 86 are provided at the rear ends, and in particular, the ends of clamping plates L/-1 and 84 are attached to the rear end of one rear cover member 62 at the abutting portion of each rear cover member 62, 65. Since the structure is such that the rear end side part 65a of the other adjacent rear cover member 65 is also clamped at the portion 84a, it is not limited to simply connecting the rear end of the rear cover 61.
Each rear cover member 62,65 is attached by a clamping plate 84.
The rear ends of the abutting portions can also be clamped and held. This allows the individual rear cover members 62, 65 to better follow the change in curvature, making it difficult for sagging to occur at the abutting portions, and preventing the rear ends of the abutting upper portions of each rear cover member 62, 65 from turning up. Therefore, the occurrence of gaps can be minimized and soil spillage can be suppressed.

(Example) Examples will be described below based on the accompanying drawings.

Figure 1 shows the side view of a rotary work machine including the rear part of an agricultural tractor.
A lift device 4 and a power take-off shaft 5 are provided, and the rotary work machine 6 has a pair of connecting plays 1 +9 ↓ l-i.
Re TL we n 噌 [Shi 15 A 1
It is connected to the power take-off shaft 5 and connected to the rear of the tractor l. As shown in FIG. 2, the rotation of the input shaft 8 is converted into the rotation of the output shaft 15 in the left and right direction through gears 11, intermediate shafts 12, gears 13, 14, etc., and there are pipes 16, 17 is fixedly installed, and the chain case 1 is attached to the end of the left pipe 16.
A support grate 19 is connected to the end of the pipe 17 on the right side.

The power transmission shaft 21 connected to the output shaft 15 is connected to the left pipe 1
A sprocket 24 is inserted through the interior of the sprocket 6 and has a sprocket 22 at the end thereof, and is interlocked with the sprocket 22 by a chain 23.
One end of the rotary shaft 25 is connected to the rotary shaft 25 , and the other end of the rotary shaft 25 is supported by the support plate 19 . A large number of rotary claws 26 are provided on the rotary shaft 25, and a pipe 27 is provided rearwardly from the connecting plate 9 as shown in FIG.
An arm 28 supporting 9 is connected so that its length can be adjusted.

The rotary claws 26... are covered from above by a main cover 31 shown in FIG.
The ports 38 are fixedly installed on the left and right ends of the main cover 31.
, a side cover 41 is fixed with nuts 39 or the like. The upper part of the side cover 41 protrudes above the main cover 31,
As shown in FIGS. 4 and 5, a pair of support pieces 32 are provided on the rear end of the main cover 31, and a support vibrator 42 is provided on the upper rear end of the side cover 41 to project inward.

In addition, ports 43 and 44 are provided at the lower rear end of the side cover 41 and above it to protrude outward, and the rear side cover 51 is pivotably attached to the lower port 43 at the lower front end with nuts 53, and the upper port Porto 44 rear side cover 5
A nut 54 is attached by engaging the elongated hole 52 of 1. Further, a hook-shaped engaging portion 45 cut out from above is formed at the upper rear end of the side cover 41.

An elastic and flexible rear cover 61 is attached to the rear end of the main cover 31, and as shown in FIG.
, consisting of a soft rubber plate 62 and left and right soft rubber plates 66,
In particular, overlapping pieces 63 are formed on both left and right edges of the central soft rubber plate 62, extending laterally except for the front and rear ends.

A holder 71 is fixed to the front end of the rear cover 61. The holder 71 also consists of a central clamping plate 72 and left and right clamping plates 75, which are divided into three parts, forming upper and lower bifurcations, and left and right vibrators 73 and 76 are attached to the front end of each clamping plate 72 and 75 to the lower surface. Two fork-shaped rear cover stoppers 74 and 78 are welded to the left and right vibrators 76, and connecting pins 77 are welded to the inner ends of the left and right vibrators 76, respectively. Insert the front end of each soft rubber plate 62.65 into each clamping brake 472.75 and secure it with ports 66 and nuts 67, and place the central pipe 7 between the pair of support pieces 32 on the rear end of the main cover 31.
3 is coming. The connecting pins 77 at the inner ends of the left and right pipes 76 are passed through the support piece 32 and inserted into the left and right ends of the central pipe 73, and the pivot pins 48 are connected to the left and right pipes 76 from the support pipes 42 at the rear end of the side cover 41. Insert into split bottle 49
Stop deleting. As a result, three soft rubber plates 62.6
A rear cover 61 formed by abutting the main cover 31 at its front end is rotatably attached to the rear end of the main cover 31.

Further, a rod member 81 extending in the left-right direction is fixed to the rear end of the rear cover 61. The rod member 81 also consists of a central vibrator 82 and left and right pipes 85, which are divided into three parts, and bifurcated clamping plates 84 and 86 are welded to each of the vibrators 82 and 85 in the same manner as described above. As shown in FIG. 6, the left and right ends of the central fixing plate 84 protrude from the vibrator 82,
Connecting bins 83 are welded to the left and right ends of the vibrator 2, and the left and right ends of the left and right vibrators 85 protrude from the clamping plate 86, as shown in FIG. Here, the horizontal width of the central clamping plate 84 is larger than the horizontal width of the rear end of the central soft rubber plate 62, and the horizontal width of the clamping plates 86 on both sides is smaller than the horizontal width of the soft rubber plates 65 on both sides. It has become.

The assembly is as follows: insert each soft rubber plate 396 into the port 68. It is fixed with nuts 69, and the connecting pins 83 at both ends of the central vibrator 82 are inserted into the left and right pipes 85. At this time, as shown in FIG. 8, the overlapping pieces 63 provided on both sides of the central soft rubber plate 62 are overlaid on the lower side of each of the left and right soft rubber plates 65, and the left and right ends of the central clamping plate 84 are Inside part 65 of the rear end of each soft rubber plate 65 on both sides in 84a.
A is also clamped and held.

In this way, the rod member 81 is integrally attached to the rear end of the rear cover 61, and when the rear cover 61 is not used,
The rear half of the rear cover 61 is bent over the front half, and the left and right ends of the rod member 81 at the rear end are hooked to the hook-shaped engaging portions 45 at the rear end of the side cover 41.

In the rear cover 61 divided into three parts in this way, there is simply a central soft rubber plate 62, left and right soft gono plates, and plates 65 and 65.
Overlap piece 63.63 downward at the butt part with
In addition to sending out individual soft rubber plates 62, 65.
Adhesive plate 84.86.8 of 7 lower two forks on the rear end of 65
In particular, the left and right soft rubber plates 65 are attached at both left and right ends 84a, 84a of the central clamping plate 84.
, 65, the rear end inner parts 65a, 65a of the inner cover 61 are not limited to a simple connecting structure of the rear end of the inner cover 61. The structure is such that the rear ends of the soft rubber plates 65 and 65 are also sandwiched and held.

That is, since the abutted rear end portions of the individual soft rubber plates 62, 65, 65 are connected in a sandwiched state by the central sandwiching plate 84, each soft rubber plate 65, 65 of the left and right stacked pieces 63, 63 In addition to preventing movement in the left and right direction due to friction with the lower surface, each soft rubber plate 62.65
．． It is possible to improve the followability of the curvature change of the soft rubber 11 plates 62, 65, and thereby to minimize the generation of gaps by preventing sagging at the abutting portions. It is possible to prevent the rear ends of the parts from rolling up, and therefore it is possible to effectively prevent soil from spilling out from the abutted parts.

The overlapping pieces may be formed on the left and right soft rubber plates, and the rear ends of the abutting portions of the rear cover may be held between the left and right sandwiching plates.

(Effects of the Invention) As described above, according to the present invention, even if a three-part type rear cover is adopted in a rotary work machine, the bottom part is simply placed at the abutting portion of the center rear cover member and the left and right rear cover members. It is not just an extension of the overlapping pieces;
An upper and lower bifurcated clamping plate is attached to the rear end of each rear cover member, and the end of the clamping plate attached to the rear end of one rear cover member is attached to the rear end of the other adjacent rear cover member at the abutting portion of each rear cover member. Since the rear end sides were also clamped, the structure was created in which not only the rear ends of the rear covers were simply connected, but also the rear ends of the abutting parts of each rear cover member were clamped and held using the clamping plate. Since it is possible to improve the ability to follow changes in the curvature of the members, sag is less likely to occur at the abutting portions, and it is possible to prevent the rear ends of the abutting portions of each rear cover member from rolling up. spillage can be prevented.

[Brief explanation of drawings]

Figure 1 is a side view of the rotary work machine including the rear part of the agricultural tractor, Figure 2 is a schematic cutaway rear view of the rotary work machine, Figure 3 is an exploded perspective view of the cover components, and Figures 4 and 5 are the main parts. Side and rear views of the cover and side cover, No. 6
Figures (a) and (b) are a plan view and a side view of the central part of the rod member, Figures 7 (a) and (b) are a plan view and a side view of the left and right parts of the rod member, and Figure 8 is a view of the rear cover. FIG. In the drawings, l is an agricultural tractor, 6 is a rotary working machine, 26 is a rotary claw, 31 is a main cover, 61 is a rear cover, 62 is a central member, 63 is an overlapping piece, 6
5 is a left and right member, 65a is a rear end side part, 71 is a holder, 81 is a bar member, 84 is a central clamping plate, 84a is an end thereof, and 86 is a left and right clamping plate.

Claims (2)

[Claims] (1) In a rotary work machine, an elastic flexible rear cover is attached at the front end to the rear end of the main cover that covers the rotary claw from above, and is divided into three parts: a center member and left and right members. An upper and lower bifurcated clamping plate is clamped and attached to the rear end of each rear cover member, and the other clamping plate attached to the rear end of one rear cover member is attached to the rear end of the rear cover member at the butt part of each rear cover member. A rear cover for a rotary work machine, characterized in that the rear end side of the rear cover member is also clamped. (2) In claim 1, the rotary work is characterized in that overlapping pieces extend downward at the abutting portions of the central rear cover member and the left and right rear cover members. The rear cover of the machine.