手动按压部分由按压杆带动滑柱及按压头向下运动，并通过限位环来控制按压头的行程；
The manual pressing section makes the downward movement by a slide cylinder and a pressing head driven by a pressing rod, and the travel of the pressing head is controlled by a limited ring;
控制口12口或14口的压缩空气只需一个脉冲信号即可使滑柱移动，但12口和14口不能同时有信号。
Control port 12 or 14 of the compressed pulse can be only one column so that sliding movement, but the 12 and 14 can not both be a signal.
转动滑架为钻柱和钻头提供转动和垂直移动。
The rotary carriage provides rotary and vertical motion to the drill string and bit.
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