Corn ear multi-roll thresher based on dispersing and then threshing

Abstract

A corn ear multi-roll thresher based on dispersing and then threshing comprises a frame, a motor, a threshing chamber, a feeding hopper, a receiving hopper and a cob outlet. A plurality of differential rolls extending to an output end from an input end of the threshing chamber are arranged in the threshing chamber, a dispersing roll and a threshing roll are arranged above the differential rolls in a staggered manner, picks capable of being inserted into corn ear grain gaps are arranged on the outer circumferential surface of the dispersing roll, a plurality of rows of threshing plates and a plurality of rows of threshing frustums are arranged on the peripheral surfaces of the differential rolls and the threshing roll at intervals along the axial directions of the differential rolls and the threshing roll respectively, and each row of threshing plates are uniformly and sequentially arranged on the same line in a continuously corrugated manner. Corn ears fed from the feeding hopper are sequentially taken into the lower portions of the dispersing roll and the threshing roll by the rotating differential rolls, dispersed and threshed, action force between grains is changed by the dispersing roll, so that the grains are mutually loosened and dispersed, the mutual action force between the loosened and dispersed grains is reduced, subsequent threshing operation is facilitated, the threshing force of the grains can be reduced, and power consumption is greatly reduced.

Description

technical field

[0001] The invention relates to a corn thresher for agricultural machinery, in particular to a corn ear multi-roller thresher based on the principle of first separating and then threshing. Background technique

[0002] Maize is an annual grass herb, an important food crop and feed source, and also the food crop with the highest total output in the world. Every link of corn picking, threshing and transportation has a great impact on the use of corn kernels as seeds, and the damage of corn ear kernels is inevitable in every link, especially the threshing link. Damaged corn seeds have the disadvantages of low germination rate, mold, moth and breakage. For a processing plant that processes 10,000 tons of corn seeds a year, 1% damage means that 100 tons of corn seeds are scrapped. Therefore, reducing corn seed threshing damage has become the main problem of mechanical threshing. According to the large area of ​​corn planting in my country, the large amount of se...

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