我厂每年生产各种矿冶备件很多,但不少零部件存在一定的问题,如结构设计不合理,选材不合理等。针对此问题我们进行了改进,效果较好。一、改进结构,提高使用性能矿山井下使用的1.6米~3自卸矿车,其翻卸轮部分,原设计为滚动轴承式(图1),由于使用条件恶劣,轴承密封性能达不到要求,泥 I plant a lot of mining and metallurgy spare parts production every year, but many parts there are some problems, such as structural design is unreasonable, material selection unreasonable. In response to this problem we have improved, the effect is better. First, to improve the structure and improve the performance of the mine used in the 1.6 m ~ 3 dump truck, the dump wheel part of the original design for the rolling bearing type (Figure 1), due to poor conditions of use, bearing sealing performance fail to meet the requirements, mud