Abstract

Cleaning sieve is an important part of grain combine harvester, which directly affects the performance of grain combine harvester. In this paper, according to the cleaning requirements of the grain combined harvester, the cleaning and movement characteristics of the cleaning sieve are considered, the screening principle of the cleaning sieve is analyzed, and the kinematic analysis of the cleaning mechanism is carried out. Qualitative analysis of the kinematics and kinetics of the corn extractives on the sifting screen is based on traditional theory, and the movement tendency of the corn extractives on the cleaning sieve is analyzed by discrete element software.

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