本文研究了茎秆层松散度和谷粒动能对谷粒分离的影响,得出了茎秆层具有一定的松散度是谷粒分离的先决条件。随茎秆层松散度和谷粒速度的增大,分离效果增强,分离时间缩短。根据使茎秆层具有较大的松散度和谷粒具有较大的动能,设计了一种新的分离装置。实验表明,这种分离装置较键式逐稿器的分离性能强。 In this paper, the effects of stalk layer looseness and kinetic energy of grain on grain separation were studied. It was concluded that the stalk layer had a certain degree of looseness as a prerequisite for grain separation. With the stalk loosening degree and the grain speed increasing, the separation effect is enhanced and the separation time is shortened. According to the fact that the stalk layer has greater looseness and the grain has greater kinetic energy, a new separation device is designed. Experiments show that this separation device more key type bystander strong separation performance.