Winnowing machine

Abstract

The invention discloses a winnowing machine, and belongs to the technical field of agricultural machinery. The winnowing machine comprises a wind power device, a feeding device and a screening device,a fan is used in the wind power device, the feeding device conveys grain from a feeding box to a discharging port through a conveying belt with a vertical clapboard, the screening device comprises two screening machines for screening the grain different in quality respectively. The winnowing machine is simple in structure and high in working efficiency and grain cleanliness, the work and labor are saved, and the grain is generally classified according to the fullness degree.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a field lifting machine. Background technique [0002] my country is a large agricultural country, and large-scale mechanization has not yet been popularized. After preliminary threshing of crops such as beans and corn, there are still debris such as grass, bran, sand and stones. At present, due to limited conditions, farmers in our country usually use wooden shovels to artificially raise the field against the wind to separate grain, grass, bran and sand. Its disadvantages are: low work efficiency, high labor intensity, low grain purity, and waste, and it is impossible to select high-quality grain as seeds for the coming year. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a field lifting machine, which has a simple structure, labor and labor saving, high work effic...

AI Technical Summary

Problems solved by technology

Its disadvantages are: low work efficiency, high labor intensity, low grain cleanliness, waste phenomenon, and it is impossible to select high-quality grain as seeds for the coming year

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