A corn thresher based on counter-rotating double rollers and capable of improving the cleaning rate

Abstract

The invention relates to a corn thresher based on contrarotation dual rollers and capable of improving threshing rate, which comprises a feed hopper, a front bin shell, a rear bin shell, a left-side panel, a right-side panel, a base plate and a discharge port. Two contrarotation threshing rollers are arranged at intervals in a threshing space formed by the front bin shell, the rear bin shell, the left-side panel, the right-side panel and the base plate. The transverse direction of the rear bin shell is composed of two arc-shaped press plates. When the threshing rollers rotate towards the outer side of the corn thresher, a plurality of elastic members A are fixed to the outer edge of the rear bin shell at intervals; when the threshing rollers rotate towards the inner side of the corn thresher, a plurality of elastic members A are fixed at the inner edge of the rear bin shell at intervals; there is an angle between the length direction of each elastic member A and the threshing roller; elastic members B are arranged in the connecting direction on two sides of the tail end of each arc-shaped press plate. The elastic members are arranged in appropriate positions to achieve the purpose of full collision between corn cobs of different specifications and the elastic members so as to improve the threshing rate.

Description

technical field [0001] The invention relates to a small agricultural thresher, in particular to a corn thresher based on counter-rotating double rollers and capable of improving the cleaning rate. Background technique [0002] As we all know, corn thresher is a widely used small-scale agricultural machinery, and it is a device that can separate corn kernels from stems. [0003] The existing corn thresher mainly includes parts such as a feed hopper, front and rear bin shells, left and right side panels, and the threshing end of the rear bin shell is provided with a manual eccentric position adjustment mechanism, under the action of the position adjustment mechanism, the rear bin The threshing end of the shell can swing up and down around its hinged end, so as to realize the threshing of corn cobs of different sizes. During the specific work, the threshing roller with threshing ribs is often used to rotate at high speed, and the shell and side plates around the threshing space...

AI Technical Summary

Problems solved by technology

[0003] The existing corn thresher mainly includes parts such as a feed hopper, front and rear bin shells, left and right side plates, and the threshing end of the rear bin shell is provided with a manual eccentric position adjustment mechanism, under the action of the position adjustment mechanism, the rear bin The threshing end of the shell can swing up and down around its hinged end, so as to realize the threshing of corncobs of different sizes. During the specific work, the threshing roller with threshing ribs is often used to rotate at high speed, and the shell and side plates around the threshing space are squeezed and hit. For threshing, the threshing means are relatively simple, and the corn cob cannot be well stressed when the threshing space moves forward, thus affecting the cleaning rate and threshing efficiency; on the other hand, the corn thresher in the prior art does not Considering how to prevent smaller corn cobs from leaking out of the thresher when threshing corn cobs of different specifications, the purpose of fully threshing cannot be achieved

[0004] At the same time, because the rear bin shell is a whole, the corn cobs will lift up the rear bin shell during the high movement of the threshing space, resulting in a larger opening at the rear of the rear bin shell, resulting in the small corn cobs falling out of the rear bin without fully threshing. end of shell leaking

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