摘要
对采用离心风扇与单层鱼鳞筛的清选装置进行研究，分析了风筛配合作用下清选物料的受力情况，建立了物料运动的特征界限值公式和运动方程，为设计、使用小型谷物联合收割机上的简易清选装置提供了参考依据．
We studied the cleaning mechanism using centrifugal fan and single layer fish scale screen, and analysed the applied forces of the cleaning materials on the cooperated effect of air and screen. The characteristic bounds formulas of the materials motion and the motion equtions were gained. The study provides reference basis for the simple cleaning mechanism suitable for the small tractor mounted grain combine.
