JPH0210913Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The invention provides an upper cover that covers the outside of the threshing feed chain stretched along the outside of the handling opening, and a top cover that covers the outside of the threshing feed chain. The present invention relates to a safety cover structure for a threshing device, in which a lower cover that covers the outside of a disposed transmission mechanism is disposed below and inwardly of the upper cover.

[Conventional technology]

Conventionally, as the above-mentioned safety cover structure, as disclosed in, for example, Japanese Utility Model Application Publication No. 54-177362 (hereinafter referred to as the first example), the lower end portion of the upper cover is bent inward, and the There was a structure in which the upper end line of the cover and the upper end line of the upper cover were provided in a state of abutting each other, and the lower cover was pivoted to the threshing device at its lower end so as to be swingable around the axis. Further, as disclosed in Japanese Utility Model Application No. 55-110039 (hereinafter referred to as the second example), the upper cover and the lower cover are attached to the main body of the threshing device in a fixed position, and the upper cover and the lower cover are When viewed from the side, there was a structure that partially polymerized.

[Problem that the invention attempts to solve]

However, in the structure of the first example, straw waste falling from the threshing feed chain installation part passes through the inner side of both covers and easily accumulates in the transmission mechanism installation part at the inner lower part of the threshing device, making cleaning etc. The drawback was that maintenance work had to be performed frequently. Another drawback was that while the lower cover had a swinging structure, high machining accuracy was required in order to tightly join the edge lines of both the upper and lower covers.

In the structure of the second example, straw waste from the threshing feed chain is discharged from the overlapping part of the upper cover and the lower cover to the outside of the machine, so there is no need for frequent cleaning. When performing maintenance work such as replacing the belt, it is necessary to remove the lower cover, which is in a fixed state, and the work of attaching and detaching the lower cover is troublesome and time-consuming.

The purpose of this invention is to eliminate the above-mentioned problems, efficiently discharge the straw waste regularly generated during threshing work, reduce cleaning work, and reduce maintenance of the transmission mechanism. The purpose is to allow inspection work to be performed easily and without any hassle.

[Means to solve the problem]

A feature of the present invention is that in the safety cover structure for a threshing device having the above configuration, the upper cover and the lower cover are spaced apart from each other appropriately in the inner and outer directions, and the lower end of the upper cover is connected to the lower cover. The lower cover is arranged in such a manner that the upper end overlaps with the upper end in a side view, and the lower cover is swingable and open outward about the lower end as a fulcrum, and the swing locus of the upper end is displaced downward. The functions and effects are as follows.

[Effect]

In other words, the two covers are spaced apart from each other in the inner and outer directions, and the lower cover is located further inward than the upper cover, so that the straw waste that falls from the threshing feed chain is passed from between the two covers to the outside of the machine. be discharged. Furthermore, since both covers overlap when viewed from the side, there is little risk of an operator accidentally inserting his/her hand into them even if they are spaced apart. When performing maintenance and inspection of the transmission mechanism, it is only necessary to swing open the lower cover, and this can be done with a simple operation. Furthermore, since the upper end of the lower cover swings downwardly, the opening operation can be performed smoothly without interference even when the vertical overlapping width is increased.

[Effect of idea]

Therefore, according to the present invention, it is possible to prevent the straw waste generated during the threshing operation from accumulating in the space in which the transmission mechanism is installed, and the frequency of cleaning can be reduced, and the maintenance work of the transmission mechanism has become easier. Moreover, operational safety can be ensured, and since both covers are spaced apart, there is an advantage that assembly accuracy can be low.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 and 2, on the side of the threshing device main body 5, a clamping rail 1 is provided oppositely on the upper side.
A threshing feed chain 3 that clamps and conveys grain culms along the handling opening 2 by cooperation with the handling opening 2 is stretched along the handling opening 2, and an upper cover 4 covering the outside of the threshing feed chain 3 is provided. A stay 6 connected to the threshing device main body 5
It is fixed in position via bolts and nuts 7.

A lower cover 9 that covers the outside of the belt-type transmission mechanism 8 disposed below the threshing feed chain 3 is disposed on the lower inner side of the upper cover 4. The cover 9 is disposed at an appropriate distance from the inside and outside, and the lower end of the upper cover 4 and the upper end of the lower cover 9 overlap in side view. The lower cover 9 is removably fixed to the stay 11 connected to the threshing device main body 5 at two places on the front and rear sides of the upper side via bolts 10, and can swing open outward with its lower end as a fulcrum R. It is attached to the threshing device main body 5 in such a manner that its upper end swing locus a can be moved downward.

In other words, as shown in FIG.
A swing fulcrum shaft 12 is fixed to a bracket 5a connected to the lower cover 9, and a bracket 9a connected to the lower cover 9 is fixed.
A vertically long insertion hole 13 is formed through which the swing fulcrum shaft 12 is inserted. Then, remove the bolts 10 and insert the lower cover 9 into the long insertion holes 13.
It can be displaced downward by a distance corresponding to , and swing open outward (see FIG. 3).

The transmission mechanism 8 includes a belt 8a that transmits the rotation of the winnowing shaft 14 to a recovery screw shaft 15 and a swinging shaft 16 of the swinging sorting device;
It has a belt 8b that transmits the rotation of the dust to the recovered secondary material conveying screw shaft 17 and the dust removal cross-flow fan shaft 18.

According to the above configuration, when the lower cover 9 is positioned in the closing position, both the covers 4,
9 The vertical width L ₁ of the overlapping part is made large to prevent workers from accidentally inserting their hands, increasing safety. When opening and closing the lower cover 9 by swinging, the lower cover By displacing 9 downward, the vertical overlap width L ₁ can be reduced, and smooth opening and closing operations can be performed without unnecessarily increasing the width L ₂ between the inside and outside directions of the overlapped portion of the cover.

[Another example]

FIG. 4 shows another embodiment.

That is, the fulcrum shaft 12 is fixed to the bracket 9a on the side of the lower cover 9, and the fulcrum shaft 12 is inserted into the long insertion hole 1 formed in the bracket 5a on the side of the threshing device main body 5.
3 is inserted through the threshing device body 5, and by moving the fulcrum shaft 12 downward with respect to the threshing device main body 5, the upper end rocking locus a of the lower cover 9 is displaced downward.

[Brief explanation of drawings]

The drawings show an embodiment of the safety cover structure for a threshing device according to the present invention, and FIG. 1 is a side view, and FIG. 2 is a schematic vertical sectional front view of the main part showing the lower cover in a closed position. FIG. 3 is a schematic longitudinal sectional front view of the main parts showing a state in which the lower cover is displaced downward in the closed state, and FIG. 4 is a schematic longitudinal sectional front view of the main parts showing another embodiment. 2... Handling port, 3... Threshing feed chain, 4
... Upper cover, 5 ... Threshing device main body, 9 ... Lower cover, 8 ... Transmission mechanism, 12 ... Swinging fulcrum shaft, R
……fulcrum.

Claims (1)

[Claims for Utility Model Registration] 1. An upper cover 4 is provided to cover the outside of the threshing feed chain 3 stretched along the outside of the handling port 2, and a transmission mechanism is provided below the threshing feed chain 3. A safety cover structure for a threshing device in which a lower cover 9 covering the outside of the threshing device is disposed on the lower inner side of the upper cover 4, and the upper cover 4 and the lower cover 9 are arranged in the inner and outer directions. The lower end of the upper cover 4 is arranged at appropriate intervals and the upper end of the lower cover 9 overlaps with the upper end of the lower cover 9 in side view, and the lower cover 9 is set with its lower end as a fulcrum R. A safety cover structure for a threshing device, characterized in that it is configured to be able to swing open outwardly, and its upper end swing locus can be moved downward. 2. Request for registration of a utility model in which the means for displacing the upper end swing locus of the lower cover 9 downward is a means for moving the lower cover 9 downward with respect to the swing fulcrum shaft 12 fixed to the threshing device main body 5 side. range 1
The safety cover structure of the threshing device described in Section. 3 The means for displacing the upper end swing locus of the lower cover 9 downward is a means for moving the swing fulcrum shaft 12 fixed to the lower cover 9 downward with respect to the threshing device main body 5. A safety cover structure for a threshing device according to scope 1.