在联合收割机半链轨使用中 ,支重轮密封问题着实令我们伤了不少脑筋。一般半链轨作业 6 7hm2 左右时 ,支重轮密封装置便逐渐失去密封作用 ,导致进水进泥 ,损坏轴承甚至整个支重轮总成。此时不但材料消耗增大 ,而且延误农时损失巨大。为解决这一问题 ,1998年我们对半链轨支重轮 In the use of half-track combine harvester, roller bearing problem really hurt us a lot of brains. Generally half-track operation 6 7hm2 around, the roller gear seal will gradually lose the seal, resulting in water into the mud, bearing damage and even the entire roller gear assembly. At this point not only increased material consumption, but also a huge loss of agriculture delay. To solve this problem, in 1998 we are on the half-track track roller