我团使用的E512联合收割机,一直存在着糠里裹粮的严重问题。据查,每平方米达140粒,后来改装了筛片,每平方米降为120粒。经检查分析,引起糠里裹粮的主要原因是筛子运动的水平和垂直振幅不够,抖动性能差,使谷粒难于从筛孔漏下,而是随糠一起排出机外。为此,在不影响机构传动和零件强度 The E512 Combine harvester that I used in the regiment has always had a serious problem with the grain-wrapped cereal. According to the investigation, up to 140 tablets per square meter, then modified sieve tablets, down to 120 tablets per square meter. After the inspection and analysis, the main reason for causing the cereal grain to wrap is that the horizontal and vertical amplitude of the sieve movement is not enough and the jitter performance is poor, which makes it difficult for the grain to fall out of the sieve hole. To this end, does not affect the transmission and parts strength