JPS6041086Y2 - Threshing chamber cover mounting structure in threshing machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a structure for attaching a cover covering the upper part of a threshing room so that it can swing open and close using the handle side as a fulcrum.

Conventionally, in order to install the threshing chamber cover so that it can be swung open and closed, a swing fulcrum shaft for the threshing chamber cover was provided on a bracket extending from the threshing machine body and located outside the cover. The fulcrum shaft and the pivot part of the cover tend to rust due to rainwater, etc., and dust such as straw waste tends to adhere to them.As a result, it becomes difficult to open and close the cover over time, making it difficult to clean the inside of the threshing chamber. was there.

In view of the above-mentioned circumstances, the object of the present invention is to make it possible to open and close the cover smoothly and easily at all times through extremely simple improvements. , between the brackets extending from the threshing machine main body, the swinging fulcrum shaft of the brackets and the stopper for regulating the opening limit position of the cover are connected by a bridge in a state in which the brackets are located in the cover; Features.

That is, by locating the swinging fulcrum shaft within the cover, rainwater does not fall on the pivot between the swinging fulcrum shaft and the cover, and dust such as straw waste does not adhere to it. In addition, since the bracket is equipped with a stopper for regulating the opening limit position of the cover, the cover does not open more than necessary, and the cover can be opened and closed smoothly and easily at all times, allowing for easy access to the inside of the threshing chamber. Cleaning etc. can be done conveniently.

Moreover, instead of using a special cover to cover the pivot point between the swinging fulcrum shaft and the cover, it is sufficient to simply position the swinging fulcrum shaft and the stopper inside the threshing chamber cover, which is extremely structurally efficient. It was easy to implement, and it also resulted in a good-looking product.

Further, the swinging fulcrum shaft is configured to double as the swinging opening/closing fulcrum shaft of a cover covering the outer side of the rail stand that supports the shell culm holding rail so as to be elastically displaceable up and down, or the bracket is provided with a reinforcing shaft. When the pipe frame is fixedly supported, a swinging opening/closing fulcrum shaft of the rail base cover and a bracket for attaching it to the threshing machine main body, or
There is no need for a bracket for attaching the reinforcing pipe frame to the threshing machine main body, and in either case the attachment has the advantage of simplifying the structure and reducing costs.

Furthermore, when the threshing room cover and the rail stand cover are configured to be freely inserted and removed from the axial direction of the swing fulcrum shaft, the threshing room cover and the rail stand cover can be assembled and removed. It has the advantage of being easy to work with.

Hereinafter, embodiments of the present invention will be described based on the drawings.

FIG. 1 and FIG. 2 show a threshing machine mounted on a combine harvester, which consists of a threshing chamber 2, a reprocessing chamber 3, a sorting and collection chamber 4, and a dust removal chamber 5, which are configured in the threshing machine main body 1. The threshing room 2 and the reprocessing room 3 are provided with handling drums 6 and 7 for post-processing the husk and No. 2 grain, and receiving nets 8 and 9, respectively, and the sorting and collection room 4 is provided with the threshing room 2 and the reprocessing room 3, respectively. An oscillating sorting plate 10 that sorts the threshed grains from the reprocessing chamber 3 while oscillatingly conveying them in the axial direction of the handling cylinder, a winnowing machine 11 that generates sorting air toward the lower side in the oscillating conveyance direction, and a sorting system. Screw conveyors 12 and 13 are provided for collecting the processed first and second grains, respectively,
In addition, the dust removal chamber 5 is provided with a cut-off fan 14 for discharging dust to the outside of the machine.

In addition, a threshing feed chain 16 is attached to the lower lip plate 1A located below the handling port 15 of the thresher main body 1, and a shell culm holding rail 17 is attached to the upper lip plate IB located above the handling port 15. Rail stands 18 that support vertically elastically displaceable are respectively attached, and of the covers 19 and 20 that cover the upper portions of the threshing chamber 2 and reprocessing chamber 3, the threshing chamber cover 19 is swung around the handling port 15 side as a fulcrum. It is configured to open and close freely.

Next, the installation structure of the threshing chamber cover 19 will be explained.

That is, as shown in FIGS. 3 and 4, brackets 21 and 21 are installed laterally and outwardly from near the top of the rail stand 18 of the front and rear side walls IC and ID of the threshing machine main body 1 that pivot the handling drum 6. Extending to this bracket 21.21, a swing fulcrum shaft 22.22 along the axial direction of the handling cylinder and a stopper 23.23 for the opening limit of the cover 19 are attached to both 22.23 and 2.
2° 23 are both located within the cover 19, and
The swing fulcrum shafts 22, 22 are fixed to the bracket 21.21 in a penetrating state, and the swing fulcrum shafts 22,
22, a substantially single-shaped mounting member 24.24 is provided on the inner surface of the cover 19, and a mounting member 26.24 is provided on the upper end of the cover 25 covering the outer side of the rail base 18. 26 is externally fitted and supported on the swing fulcrum shafts 22, 22 so that it can be inserted into and removed from, and rotated from, opposite directions of the axis.

In addition, the reinforcing pipe frame 27 is fixedly supported by the brackets 21 and 21, and the threshing room cover 1
9, one end of the reprocessing chamber cover 20, near the lower end of the rail stand cover 25, and a metal fitting 28 provided on the rail stand 18, respectively, are configured to be fixedly connected and disconnected via bolts, respectively. There is.

[Brief explanation of the drawing]

The drawings show an example of the structure of the threshing chamber cover installed in the threshing machine according to the present invention, and FIG. 1 is a vertical side view of the threshing machine, FIG. 2 is a vertical front view, and FIG. 3 is an enlarged sectional view of the main parts. , FIG. 4 is a sectional view taken along the line mV-IV in FIG. 3. 1... Thresher main body, 2... Threshing room,
17: Culm holding rail, 18: Rail stand, 19: Curved threshing room cover, 21: Bracket, 22: Swing fulcrum shaft , 23...
・・Stopper, 25・Run・Rail stand cover, 27・・
...Pipe frame.

Claims (1)

[Scope of Claim for Utility Model Registration] ■ A structure for attaching a cover 19 covering the upper part of the threshing chamber 2 so that it can be swung open and closed using the handle side as a fulcrum, and includes a bracket 21 extending from the threshing machine main body 1, 21, while it is located inside the cover 19, its swing fulcrum shaft 2
2 and a stopper 23 for restricting the opening limit position of the cover 19 are connected by a bridge. (2) The swinging fulcrum shaft 22 is configured to also serve as the swinging opening/closing fulcrum shaft of a cover 25 that covers the outer side of the rail stand 18 that supports the shell culm holding rail 17 so as to be elastically displaceable up and down. The installation of the threshing chamber cover in the threshing machine described in Scope Item ■ is structural. (2) A threshing chamber in a threshing machine according to claim (2), wherein the threshing chamber cover 19 and the rail stand cover 25 are configured to be able to be inserted into and removed from the swinging fulcrum shaft 22 from the axial direction thereof. The cover installation is structural.