This paper expounds the design of processing techniques before hole-boring on the cylinder of upright post and hoisting jack used in the hydraulic support.

阐述了液压支架所用立柱、千斤顶的缸筒在上深孔钻镗床进行镗孔、滚压之前必须进行的加工工艺的设计。

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Similarly, a detent pin is slidably seated in the post and is engaged by the cam for axial displacement into the lock cylinder.

同样，定位销可 滑动地固定在杆内并且被凸轮接合，以轴向移入锁芯中。

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