Axial rheological gap bionic corn threshing device

Abstract

The invention discloses an axial rheological gap bionic corn threshing device. The axial rheological gap bionic corn threshing device comprises a machine frame, a threshing roller, a concave plate sieve, a machine cover and a corncob recycling mechanism, wherein the machine cover is fixed at the lower part of the machine frame; the concave plate sieve is fixed in the machine cover; the threshing roller is fixed in the concave plate sieve; the corncob recycling mechanism is fixed ar the back part of the machine cover; the cylindrical threshing roller and the conical concave plate sieve jointly form threshing gaps which are continuously changed from big to small to promote that corn ears are subjected to effective threshing action all the time; and threshing teeth on the outer surface of a bionic threshing bridge and threshing columns which are distributed on the inner surface of the concave plate sieve in a copying arc form jointly form the threshing functional surface, microscopic threshing moment is applied to corn grains, and the removed corn grains are separated out timely through a grain leaking groove in the surface of the bionic threshing bridge and a separating port in the surface of the concave plate sieve. The axial rheological gap bionic corn threshing device has high threshing efficiency and few crushed grains, and can synchronously collect the corncobs.

Description

technical field [0001] The invention relates to an agricultural machine, in particular to an axial rheological gap bionic corn threshing device. Background technique [0002] During the harvest season of corn, the moisture content of the grain is relatively high, and threshing it directly will easily cause the grain to be broken. The traditional harvesting technology first harvests the corn ear, and after the corn ear is naturally air-dried and dehydrated, the special threshing equipment is used for threshing. Technology extends the corn harvest cycle, increasing labor and equipment costs. With the acceleration of the mechanization process of the whole process of corn production, the technology of direct harvesting of corn kernels has increasingly become a hot spot and difficult point in the industry. The existing direct harvesting corn threshing devices are mainly divided into axial flow type and cutting flow type. Flow threshing drum and concave plate sieve, threshing par...

AI Technical Summary

Problems solved by technology

The existing grain direct harvesting corn threshing device mainly adopts the principle of friction, and the threshing parts and the concave plate sieve jointly exert linear contact on the corn ear, causing a large stress on the corn kernel, resulting in a large number of kernel damage; the remaining corn cobs after threshing are directly thrown In the field, causing a large amount of entrainment loss of corn kernels

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