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为了改变我矿采准落后的局面,满足靠近地平面凿平炮孔,开路堑,打跟底,处理边角矿量的需要,我们学习了兄弟单位的先进经验,根据本矿的具体要求设计了一台专用潜孔凿岩机。利用矿山多年仃用的一台CZ-20-2钢绳冲击钻机的底盘、行走传动和履带装置,选用YQ-150A潜孔凿岩机的回转齿箱、推压缸、滑架、电动胡芦、冲击器等标准部件,自己制造驾驶室、操纵装置、电气装置、钻杆、滑架角度调整装置、橡皮风管缠绕装置等部件。于一九七七年九月制造成功一台低炮孔平潜
In order to change the situation of mining and reclaiming, to meet the need of drilling holes, opening cuts, hitting the bottom and dealing with the amount of corner mines near the ground surface, we learned the advanced experience of our brother units and designed them according to the specific requirements of this mine A special DTH rock drill. Using a CZ-20-2 steel rope hit the rig chassis, walking drive and track equipment, the selection of YQ-150A DTH rocker rotary gear box, push the cylinder, the carriage, the electric Hulu, the impact And other standard components, to make their own cab, control devices, electrical installations, drill pipe, carriage angle adjustment device, rubber duct winding device and other components. In September 1977, a successful production of a low-level blast hole was completed