皮带轮轴在钻井过程中起着传递动力的作用,由于长期在冲击、重载工况下运行,损坏严重。据近几年统计,进厂修理的联动机中60%左右的皮带轮轴轴承“跑内圈”。1999年修理此类轴36件,径向磨损量一般在0．2～6mm之间,已近报废程度。 一、修复 过去,对“跑内圈”磨损的轴一般采用镶 Pulley axle plays a role in transmitting power during drilling. Due to long-term operation in impact and heavy load conditions, the damage is serious. According to statistics in recent years, into the factory repair linkage of about 60% of the pulley shaft bearings “run the inner ring.” Repair of such shaft in 1999 36, the radial wear is generally between 0.2 ~ 6mm, almost scrapped. First, repair the past, the “running inner ring” worn shaft generally inlaid