Aerodynamics-based rice husk roller rubbing cleaning device

Abstract

An aerodynamics-based rice husk roller rubbing cleaning device comprises a machine frame, a feed hopper, a rice husk threshing mechanism, a separating mechanism and a grain conveying mechanism, wherein the rice husk threshing mechanism comprises a belt, a pedestal, a roller, an upper belt roll and a lower belt roll; the belt is wound on the upper belt roll and the lower belt roll to form a closed loop; the roller is pressed against the outer part of the belt, so that a rice husk threshing passage is formed between the outer wall of the roller and the belt; a discharge port of the feed hopper is positioned right above the threshing passage; the separating mechanism comprises a cleaning chamber and cylindrical sieves; a grain collecting hopper is arranged below the cylindrical sieves; an inclined jointing plate is arranged on the lower part of the pedestal; the upper end of the inclined jointing plate is jointed with the outer circumferential surface of the lower belt roll; the lower end of the inclined jointing plate is jointed with the outer circumferential surface of one of the cylindrical sieves; a centrifugal fan is arranged at one end of the cleaning chamber; a cross-flow fan is arranged on the upper part of the cleaning chamber. The aerodynamics-based rice husk roller rubbing cleaning device rubs threshed rice through the rice husk threshing mechanism to separate residual rice husks first and then cleans grains through the cleaning chamber, so that the aerodynamics-based rice husk roller rubbing cleaning device has the advantages of high cleanness and high cleaning efficiency.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to an aerodynamic-based grain code roller cleaning device. Background technique [0002] Due to the unique biological characteristics of millet, each ear has about 60-150 yards of grain, and the yards are mostly spiral-shaped on the ears of grain. The connection between the millet and the yard is strong, and the connection between the yard and the ear The connecting force is relatively small, therefore, the corn yard is easy to separate the ear of the grain, but the separation of the millet and the corn yard is difficult, and it is difficult to ensure the removal rate. [0003] The unclean threshing of corn yards is ubiquitous in the existing grain combine harvester cleaning device. Since the threshing device of the grain combine harvester still contains part of the grain codes, the current drum sieve cleaning mechanism cannot clean the separated grain codes, and a second thr...

AI Technical Summary

Problems solved by technology

Since the threshing device of the grain combine harvester still contains part of the grain codes, the current drum sieve cleaning mechanism cannot clean the separated grain codes, and a second threshing is required after cleaning. Therefore, eliminating the grain The problem of grain size in the cleaning process is particularly important; and when the harvest volume is large or the moisture content of the grain exudate is large, it is easy to cause the material to stick and accumulate on the sieve surface, so that the material is insufficiently separated and falls into the grain agitator. Long, resulting in a significant drop in kernel cleaning rate

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