In the light of the situation of the cylinder degumming of the rubber belt conveyer, this paper analyzes on the causes of the cylinder degumming, and advances some measures for preventing the rubber belt off-tracking and adjusting the off-tracking.

A design calculation of bolting between threshing cylinder and rasp bar;

In order to lower power consumption,to reduce the cleaning load and to improve the efficiency of the combine harvester,a new threshing cylinder with short-rasp-bar tooth has been developed,and .

The power consumption of tangential flow threshing cylinder, force-feeding drum and axial flow cylinder were experimentally measured.

Stripper harvesting can reduce the quantity of non-grain materials in the re-threshing roller and greatly cut down consumption of energy.

In this paper, the horizontal and vertical place of stripping rotor and screw auger were studied, the law of different location affecting the loss was analysed, and the rational place was defined.

Based on theoretical analyses for working velocity on stripping rotor and linked field practice, we obtain the optimum parameters adopted 15~ 16m/s of linear velocity of the stripping rotor ,that mutually cooperate with smaller clearance of feeding mo.