Closed coaxial differential arch dental roller

Abstract

The invention belongs to the technical field of agricultural machinery, in particular to a closed coaxial differential arch dental roller for a semi-feeding combined harvester and a semi-feeding rice thresher. Aiming at the defects of large volume and complicated structure of the traditional threshing roller, the invention provides the closed coaxial differential arch dental roller with small volume, simple structure and favorable threshing effect. The closed coaxial differential arch dental roller comprises a closed low-speed roller, a closed high-speed roller, a hollow shaft and a roller shaft, wherein the hollow shaft is sleeved on the roller shaft; the low-speed roller is fixed on the hollow shaft; the high-speed roller is fixed on the roller shaft; a plurality of arc teeth which are spirally arranged are arranged on the cylindrical surface of a roller body of the high-speed roller; a thrust bearing and an adjusting sleeve are arranged between the high-speed roller and the lower-speed roller on the roller shaft; a transitional ring with arch teeth is arranged between the high-speed roller and the lower-speed roller; the head of the low-speed roller is in a circular truncated cone shape; a guide plate is arranged at the head of the low-speed roller; two rows of triangle belt wheels II are arranged on the hollow shaft; and triangular belt wheels I are arranged on the roller shaft.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, in particular to a closed coaxial differential bow teeth drum used in a half-feed combine harvester. Background technique [0002] Super rice has morphological characteristics such as high yield, vigorous tillering and thick stem. When harvesting with a half-feeding combine harvester, the cut clumps are thick and dense, and after being bundled and transported by the clustering chain of the harvesting platform, they are transferred to the feeding chain for clamping and transporting, and the upper half of the stem (including the ear part) is fed into the threshing chamber Threshing. Under the "comb brush" of the bow teeth of the threshing cylinder, most of the mature and easy-to-thresh grains are threshed in the first half of the drum, while a few immature or hard-to-thresh grains are threshed in the second half. Because the existing semi-feeding combine harvesters are all single-r...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the shortcomings of the existing drums used in half-feed combine harvesters, which are large in size and complex in structure, and provides a drum for half-feed combine harvesters with small volume, simple structure and good threshing effect. Closed coaxial differential speed bow teeth drum in harvester and half-feed rice and wheat thresher

Images