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Rotary threshing device with inner roller and outer roller for coarse cereal crops

A technology of drum rotation and threshing device, which is applied in the field of agricultural machinery, can solve the problems of grain damage and cleaning, difficulties, etc., and achieve the effect of reducing short straw content, low slapping and rubbing speed, and eliminating entanglement

Pending Publication Date: 2020-04-10
SHANXI AGRI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the existing threshing device threshing miscellaneous grain crops has serious grain damage and difficult cleaning, it provides an inner and outer drum rotary type threshing device for miscellaneous grain crops

Method used

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  • Rotary threshing device with inner roller and outer roller for coarse cereal crops
  • Rotary threshing device with inner roller and outer roller for coarse cereal crops
  • Rotary threshing device with inner roller and outer roller for coarse cereal crops

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Embodiment Construction

[0027] A rotary threshing device with inner and outer drums for miscellaneous grains, comprising a box-type frame 1, the top of the box-type frame 1 is provided with a top cover 2 with an arc-shaped inner wall, and the lower part of the front end of the box-type frame 1 is provided with a feeding port 3 , the box-type frame 1 is provided with a main shaft 4 that runs through its front and rear side walls, and the main shaft 4 is fixed with a screw feeding device located in the box-type frame 1 and distributed left and right, a grain bar threshing drum 5 and a nail tooth threshing drum 6 , the bar threshing cylinder 5 is provided with a grid cylinder 7 which is eccentric up and down with it, and the left and right sides of the bottom of the grid cylinder 7 are provided with a support wheel 8 and a friction wheel 9 which are close to its outer wall, and the center of the friction wheel 9 is provided with a transmission A shaft 10, the rear end of the transmission shaft 10 is prov...

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Abstract

The invention particularly relates to a rotary threshing device with an inner roller and an outer roller for coarse cereal crops. The problems that when an existing threshing device threshes the coarse cereal crops, grains are seriously damaged, and cleaning is difficult are solved. A top cover with the arc-shaped inner wall is arranged at the top end of a box type rack, a feeding opening is formed in the lower portion of the front end of the box type rack, a main shaft penetrating through the front side wall and the rear side wall of the box type rack is arranged on the box type rack, a spiral feeding device, a rasp bar threshing roller and a spike tooth threshing roller are fixed to the main shaft, a grid roller eccentric with the rasp bar threshing roller up and down is arranged outsidethe rasp bar threshing roller, supporting wheels and friction wheels are arranged on the left side and the right side of the bottom of the grid roller, a transmission shaft is arranged in the centerof the friction wheels, and a speed reduction motor connected with the transmission shaft and fixed to the box type rack is arranged at the rear end of the transmission shaft; and the spiral feeding device comprises a conical barrel with the front side diameter smaller than the rear side diameter, and double spiral blades are arranged on the side wall of the conical barrel. A grain and straw separation process is completed at a time in the rotating process.

Description

technical field [0001] The invention relates to the field of agricultural machinery, in particular to a crop threshing device, in particular to an inner and outer drum rotary threshing device for miscellaneous grain crops. Background technique [0002] Buckwheat, oats and other miscellaneous grain economic crops have the characteristics of cold resistance, drought tolerance, ridge tolerance, strong stress resistance and short growth cycle. They are important food crops in hilly mountainous areas, dry land and gentle slopes, and have broad development prospects. However, they have special harvesting characteristics, the maturity of their grains is inconsistent, and the mature grains are easy to fall off, making it difficult to mechanized harvesting of miscellaneous grains. [0003] At present, the known crop threshing devices mainly rely on the principle of impact, rubbing, combing and brushing to realize the separation of grain and straw. Threshing devices such as the tooth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01F7/06A01F12/20A01F12/22
CPCA01F7/06A01F12/20A01F12/22
Inventor 王嘉伟李彦平卢琦刘芸李丽红郑德聪
Owner SHANXI AGRI UNIV
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