我单位一台进口 ３６ ｔ汽车起重机制动分泵的卡箍（见图１）在运行中丢失，决定自制一个以应急使用。方法如下：在比原卡箍略厚的钢板上割下一个比原卡箍外径略大、内径略小的钢圈；用车床按原卡箍尺寸等要求加工出整体卡因（见图２）；然后将整体卡圈沿中心线锯开或刨开，使 My unit imports a 36 t truck crane brake cylinder clamp (see Figure 1) is lost in the operation, decided to make one for emergency use. The method is as follows: a slightly thicker than the original hoop cut a smaller than the original diameter of the outer diameter of the clamp, the inner diameter of slightly smaller steel ring; lathe according to the original hoop size and other processing requirements of the whole card (see Figure 2 ); Then the overall collar along the center line sawing or planing, so