Forced acceleration feeding double-longitudinal-axial-flow threshing and separating device and combine harvester thereof

Abstract

The invention relates to a forced acceleration feeding double-longitudinal-axial-flow threshing and separating device and a combine harvester thereof. The threshing and separating device comprises a forced acceleration feeding roller and a longitudinal double-axial-flow roller; the forced acceleration feeding roller is transversely arranged and rotates forwards, and the longitudinally-arranged double-axial-flow roller is longitudinally arranged behind the forced acceleration feeding roller. According to the forced acceleration feeding double-longitudinal-axial-flow threshing and separating device, the forced acceleration feeding roller and the longitudinal double-axial-flow roller are combined, forced acceleration feeding plays a role in auxiliary feeding of the roller, the forced acceleration feeding double-longitudinal-axial-flow threshing and separating device can adapt to large-particle and small-particle crops, harvesting requirements of large-feeding-amount crops such as rice, wheat, oilseed rape, beans, corn and coarse cereals can be met, the threshing and separating device has the technical effects of high harvesting efficiency, high grain threshing and separating capacity, low grain breakage rate and lower threshing and separating power consumption.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a forced accelerated feeding dual longitudinal axial flow threshing and separation device and a combine harvester thereof. Background technique [0002] A combine harvester refers to a machine that can simultaneously complete the harvesting, threshing, separation and cleaning of grains and finally obtain clean grains. It is widely used in existing agricultural operations. The threshing and separating device of the combine harvester in the prior art mainly adopts two modes of horizontal axial flow and vertical axial flow. The horizontal axial flow threshing separation device, when increasing the feeding amount, often has problems such as incomplete separation, increased entrainment loss, and uneven distribution of materials on the cleaning screen surface. Vertically installed axial flow threshing and separating device, when the feeding amount is large and the crops...

AI Technical Summary

Problems solved by technology

The transverse axial flow threshing separation device, when increasing the feeding amount, often has problems such as incomplete separation, increased entrainment loss, and uneven distribution of materials on the cleaning screen surface.

Vertical axial flow threshing and separation device, when the feeding amount is large and the crops are wet, problems such as blockage of the feeding place and severe stalk breakage often occur

Images