A self-adaptive adjustment device for the size of the threshing roller cavity of a corn thresher

Abstract

The self-adaptive adjustment device for the size of the threshing roller chamber of a corn thresher disclosed by the present invention is mainly composed of a front side plate, a rear side plate, a threshing roller, a threshing pipe, a rotating hinge at the front side of the threshing pipe, and a tension spring and a tension spring at the rear side of the threshing pipe. Rod composition. The threshing roller is fixed between the front side plate and the rear side plate and can only perform the main rotation movement. The front end of the threshing pipe is fixedly connected to the front side plate through the hinge on the front side of the threshing pipe, so that the threshing pipe can only rotate around the hinge to realize the movement of the rear side of the threshing pipe away from and close to the threshing roller. The rear side of the threshing pipe is brought closer to the threshing roller by the downward pre-tension force of the tension spring on the rear side of the threshing pipe, and stops at the lower side of the larger through hole reserved on the rear side plate under normal conditions. When the device is working, the corn cob can push the threshing pipe upwards to make it rotate around the hinge, so as to realize self-adaptive adjustment of the gap between the rear side of the threshing pipe and the threshing roller. It realizes the self-adaptive and efficient threshing of the corn cob size by the corn thresher while ensuring the size of the thresher inlet remains unchanged.

Description

technical field [0001] The invention belongs to the technical field of grain processing engineering. Specifically, it refers to a self-adaptive adjustment device for the size of a threshing roller cavity of a corn thresher. Background technique [0002] Corn thresher is a mechanical device that can automatically separate corn kernels and cob cores in corn cobs. When the corn thresher is working, the corn cobs are fed from the feed port, and the corn cobs are impacted in the inner cavity formed by the high-speed rotating threshing roller and the threshing pipe to separate the corn kernels from the corn cob core, and the grains are separated and discharged through the collection device. Corn cobs are discharged from the tail of the machine to realize the threshing operation of corn. The threshing roller cavity formed by the threshing roller and the threshing pipe in the corn thresher is the key part for the corn cob to separate the corn kernels from the corn cob, which direc...

AI Technical Summary

Problems solved by technology

However, due to the complex structure of this device, the inconsistent size of the feeding cavity of the threshing machine, and the size of the threshing roller cavity cannot be changed automatically during the threshing process once the size of the threshing roller cavity is adjusted, the threshing effect and threshing efficiency are still not high.

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