The function of the corn thresher is to thresh the dried corn ears. Most of them are axial flow drum type, and there are also vertical threshing disc type. Because it has the characteristics of high production efficiency, good threshing quality, easy operation, simple structure, sturdy and durable, reliable work and convenient use and maintenance, it has been popular among farmers for many years. Corn thresher is mainly composed of drum, concave plate, sieve, fan, feeding hopper, grain slide plate, screw guide rod and so on. It adopts an axial-flow threshing device that feeds cobs at the end of the shaft tangentially. Its technological process: the ear of corn enters the drum through the feeding hopper, and is threshed under the impact of the high-speed rotating drum and the interaction of the ear of corn, the drum, and the concave plate. Most of the taken-off grains and fine impurities pass through the holes of the concave plate and are cleaned by the airflow of the fan. The light miscellaneous matter is blown out from the miscellaneous outlet, and the grains are slid out of the machine by the grain slide plate. The cob moves backward along the axis of the drum, and is discharged out of the machine from the outlet of the shaft end through the surface of the vibrating sieve, and part of the grains entrained in the cob leaks through the sieve hole and enters the grain sliding plate to slide out of the machine.
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