一、冲击钻机改造我矿剥离工作面使用38台бу—20—2型冲击钻机和9台回转钻机。随着生产的发展,穿孔能力日显不足,成为影响剥离生产的薄弱环节。无产阶级文化大革命以未,我队广大职工在矿、段党组织正确领导下,发动全队机修工人,组织“三结合”攻关组,开展改进钻机的大会战,在兄弟单位的协作下,仅去年上半年对四台冲击钻进行了技术改造,将冲击钻改为 First, the impact of drilling rig remodeling My mine stripping work surface using 38 sets of бу-20-2-type impact rig and 9 rotary rig. With the development of production, the perforation capability becomes increasingly scarce, becoming the weak link affecting the peel-off of production. Under the correct leadership of the mine and section party organizations, the majority of the workers in the proletariat took the initiative to mobilize team mechanics and organize “three combined” research groups to carry out the battle to improve drilling rigs. With the cooperation of their brother units, only In the first half of last year, the technological transformation of the four impact drill was carried out and the impact drill was changed to