我们铸造车间的熔化工部有一台小型 C2 4 6 球磨机 ,如图 1所示。主要用于破碎焦炭粉。原球磨机的支座内装配青铜轴瓦 ,轴瓦除承受接触应力外 ,还由于细料和灰尘的侵入 ,磨损比较严重 ,实际工作时间不足 1 0 0 h就需停机修理 ,将轴瓦更换 ,还需修复轴和镶套 ,每次修复的费用高 The melting department in our foundry has a small C2 4 6 ball mill, as shown in Figure 1. Mainly used for crushing coke powder. In addition to bearing contact stress, the bearings of the original ball mill are also equipped with bronze bushings. In addition, due to the intrusion of fines and dust, the bushings wear more seriously. When the actual working time is less than 100 hours, the bushings need to be shut down for repair and the bushings need to be replaced. Shafts and inserts, each repair costly