我分场1989年购进四平联合收割机厂生产的E514联合收割机2台,经过几年的实际应用,性能良好。但是经常出现割刀摇杆驱动臂一端的橡胶套损坏,而且此件不易购买。因此,我们根据摇杆的工作原理和橡胶套的作用,用111204双列滚珠轴承代替橡胶套,经过两年使用,效果良好。改进方法如下: 将摇杆驱动臂一端的轴承体换成自制轴承体,其结构与原轴承体 In 1989, I bought two E514 combine harvesters from Siping Combine Harvester Plant, and after several years of practical application, the performance was good. However, it is common for the rubber bush on one end of the cutter rocker arm to be damaged, which is not easy to buy. Therefore, based on the working principle of the rocker and the role of the rubber cover, we replace the rubber cover with the 111204 double row ball bearing and work well for two years. The improved method is as follows: the rocker arm end of the bearing body replaced self-made bearing body, the structure and the original bearing body