1.动机该矿的冲击式潜孔钻机是三根钻杆接起来打18m 深的钻孔;钻杆变形严重,由于钻头的冲击,经常使钻杆产生裂纹、破裂,特别是从钻杆螺纹部位断裂,使冲击器和钻杆的接头部分断裂,从而使冲击器留在孔中;研究了这种情况下留在孔中冲击器的回收方法。2.内容将右图所示那样的钻杆状的机件拧到孔内待提出的冲击器的风孔中进行回收;在现场将该机件焊接到钻杆上,并对螺纹部分进行堆焊加工。 1. Motivation The mine’s impact down-the-hole drilling rig is the three drill pipe connected to play 18m deep drilling; drill deformation is serious, due to the impact of the drill, the drill pipe often cracks, rupture, especially from the drill pipe thread Fracture, the impact of the drill pipe and the joint part of the rupture, leaving the impactor left in the hole; studied in this case left in the hole impactor recovery method. 2. Content Screw the drill-like part as shown to the right into the air hole of the impactor to be raised for recovery; weld the part to the drill pipe in the field and stack the threaded part Welding processing.