电铲的铜套外径均为过盈配合的铜套,按图纸直接加工并装配至座孔内,内孔就收缩,改变了原来内径与轴要求的间隙配合尺寸,致使电铲铜套作废,无法正常。本文主要就是针对以上问题,介绍了WK-4B电铲的铜套内径加工尺寸的计算方法,使之车削后安装至座孔内,其内径正好符合与轴配合的要求。 Shovel copper sleeve outer diameter are interference with the copper sleeve, according to the drawings directly processed and assembled into the seat hole, the hole shrinks, changing the original diameter and shaft requirements of the gap with the size, resulting in shovel copper sets of waste , Can not be normal. This article mainly aims at the above problems, and introduces the calculation method of inner diameter of copper sleeve of WK-4B electric shovel. After turning, it is installed into the seat hole, and its inner diameter just meets the requirements of the shaft.