An axial feeding type integrated device for threshing and separating rice and wheat

Abstract

The invention is an axial feeding type integrated device for threshing and separating rice and wheat, which includes a material feeding head (1), a longitudinal axial flow threshing and separating drum (2), a threshing grid cover plate (3), a separation grid concave The plate sieve (4), the material feeding head (1) is set at the front end of the longitudinal axial flow threshing separation drum (2), the threshing grid cover plate (3) is located on the upper side of the longitudinal axial flow threshing separation drum (2), and the separation grid The concave screen (4) is located on the lower side of the longitudinal axial flow threshing separation drum (2), and the threshing grid cover (3) and the separation grid concave screen (4) are enclosed to form a container for the longitudinal axial flow threshing separation drum (2) cylinder. The invention can meet the harvesting requirements of large feeding amount of rice or wheat, has high harvesting efficiency, strong threshing and separation ability for grains, effectively shortens the length of the longitudinal axial flow drum, and the stalks after being pulverized by the broken grass throwing mechanism are relatively fine And it is evenly sprinkled, which can directly return the harvested straw to the field.

Description

technical field [0001] The invention relates to the technical field of a rice and wheat threshing and separating device on a combine harvester, in particular to an axial feeding type upper threshing and lower separation longitudinal axial flow rice and wheat threshing and separating device, which can be widely used in high-performance harvesting of rice and wheat. Background technique [0002] The existing threshing and separation devices of combine harvesters at home and abroad only use the concave screen under the threshing drum to thresh and separate agricultural materials such as rice and wheat. , 2008, 39(1), 45~50], the threshing and separation device on the combine harvester is divided into feeding section, threshing section and separation section, that is, the grains of agricultural materials are firstly threshed in front of the concave plate sieve, and then in the concave plate sieve. The rear part of the plate sieve is separated, which causes the length of the thre...

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Problems solved by technology

[0002] The existing threshing and separation devices of combine harvesters at home and abroad only use the concave screen under the threshing drum to thresh and separate agricultural materials such as rice and wheat. , 2008, 39(1), 45~50], the threshing and separation device on the combine harvester is divided into feeding section, threshing section and separation section, that is, the grains of agricultural materials are firstly threshed in front of the concave plate sieve, and then in the concave plate sieve. The rear part of the plate sieve is separated, which causes the length of the threshing drum of the combine harvester to be relatively long; the combined threshing and separation device of the tangential flow and longitudinal axial flow disclosed in Chinese patent ZL00137715. Threshing and grading, and then using the longitudinal axial flow drum to re-thresh and separate the threshed and separated grains. This structure uses multiple threshing drums for threshing and separation, resulting in a complex and large structure of the combine harvester, which requires high power for the combine harvester.

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