Flexible-tooth threshing system with adjustable threshing gap

Abstract

The invention discloses a flexible-tooth threshing system with an adjustable threshing gap. The flexible-tooth threshing system comprises a threshing roller arranged on a rack and a concave grid, wherein the threshing roller is arranged in a threshing chamber, and comprises two gap regulating end plates fixedly arranged on roller shafts; a plurality of threshing tooth fixing rods with flexible threshing spike teeth are arranged between the two gap regulating end plates; a feeding auger which is distributed in a spiral manner is arranged on the roller shaft at the input end of the threshing roller; a feeding hole is formed in a roller housing corresponding to the feeding auger; a plurality of grass discharging plates are distributed on the roller shaft at the output end of the threshing roller; a straw outlet is formed in the roller housing corresponding to the grass discharging plates. The flexible-tooth threshing system with the adjustable threshing gap disclosed by the invention is used, so that acting time of crop silique on the flexible threshing spike teeth is prolonged, instant impact force is lowered, and crushing rate of rapeseeds can be lowered; meanwhile, the gap between the threshing roller and the concave grid is adjustable, and therefore, the flexible-tooth threshing system can meet threshing requirements varies by physical characteristics of a to-be-threshed material, and improves adaptation to the threshing material.

Description

technical field [0001] The invention relates to a threshing system of a thresher, in particular to a flexible tooth threshing system with adjustable threshing gap. Background technique [0002] Rapeseed is the main oilseed crop in our country. Vigorously developing the rapeseed industry not only needs to expand the planting area and increase the total output of rapeseed, but the traditional threshing of rapeseed is done manually or semi-mechanized. The threshing teeth have a strong impact on rape pods, and the seeds are severely broken. At the same time, because the threshing gap remains unchanged, they cannot adapt to the threshing requirements of the material to be threshed due to changes in physical properties. Contents of the invention [0003] In order to solve the above problems, the purpose of the present invention is to develop a flexible tooth threshing system with high productivity, low damage, and high adaptability, which can make people free from heavy, low-lev...

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Problems solved by technology

[0002] Rapeseed is the main oilseed crop in my country. Vigorously developing the rapeseed industry not only needs to expand the planting area and increase the total output of rapeseed, but the traditional threshing of rapeseed relies on manual or semi-mechanized operations, which has a long harvest period, delays in farming time, and large indirect losses. The impact of threshing teeth on rape pods is large, and the seeds are severely broken. At the same time, because the threshing gap remains unchanged, it cannot adapt to the threshing requirements of the material to be threshed due to changes in physical properties.

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