Harvester threshing device

Abstract

The invention discloses a threshing device of a harvester, which belongs to the field of harvesting equipment components, and includes a threshing drum, a plurality of threshing teeth are arranged on the surface of the threshing drum, and a grain guide, and the grain guide includes a grain guide chain and a grain guide chain wheel, most of the pressing bar, the pressing bar is fixed on the grain guiding chain and circulates with the guiding chain. "V" shape, when the grain pressing bar moves to the bottom of multiple "V" shapes with the grain guiding chain, there are multiple nearest tangent points with the threshing cylinder. The device can continuously and dynamically twist the straw, change the hitting direction, and hit the ear tip of the grain multiple times without installing a special cleaning device.

Description

technical field [0001] The present invention relates to a part of a harvester, in particular to a threshing device of the harvester. Background technique [0002] In the prior art, the threshing device of the harvester is mostly the rotary threshing of the threshing drum, and the threshing process does not consider the cooperation with the grass guiding device and the grass pressing part. The movement track of the pressing part on the device intersects with the threshing drum tangentially, and there is only one closest tangent point, so that the upper part of the straw only contacts the threshing drum once and is hit by the threshing teeth on the threshing drum during the process of pressing the grain into the threshing drum. Therefore, the threshing effect is not good; and most of the threshing teeth or threshing nails on the existing threshing drum are arranged in a one-way oblique type, which requires a special cleaning device to remove impurities, which increases the cos...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, most of the threshing devices of the harvester are threshing drums rotating and threshing. The threshing process does not consider the cooperation with the grass guiding device and the grass pressing parts. The movement trajectory of the pressing part on the device intersects with the threshing cylinder in a tangent line, and there is only one closest tangent point. In this way, when the grain is introduced into the pressing process, the upper part of the straw only touches the threshing cylinder once and is hit by the threshing teeth on the threshing cylinder. The threshing effect is not good; and the threshing teeth or threshing nails on the existing threshing cylinder are mostly arranged in a one-way oblique manner, which requires a special cleaning device to clean and remove impurities, which increases the cost of the equipment; as announced No. CN203467221U's "a self-propelled threshing miniature harvester before cutting", and the patent No. 200910044696.7's "less feeding, first off and then mowing type rice harvesting method and its miniature combine harvester", all have short effective escape paths. , less time and above defects

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