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概 况苏联冲击回转钻总名字叫：液动冲击钻，又有两个叫法，一种叫冲击回转钻；另一种叫回转冲击钻。自70～79年已生产7605套钻具，钻探工作量达6,696,000米（表1）两个叫法是以频率和冲击功大小的不同而加以区分的。冲击回转钻进法是低频率、高能量的，苏联采用公制计量标准20～25赫，即每秒钟的冲击次数为1200～1500次/分；高能量指单位冲击功为60～70焦耳（JOULE），折合成功率为6.12～7.14公斤·米。以这种性能为代表的是г—7、г—9和
Overview Soviet impact rotary drilling total name is: hydraulic impact drill, there are two names, one is called impact rotary drill; the other is called rotary hammer drill. 7605 sets of drilling tools have been produced from 70 to 79 and the drilling workload has reached 6,696,000 meters (Table 1). Two notations are distinguished by the difference in frequency and impact work. Impact rotary drilling method is low frequency, high energy, the Soviet Union Metric Metric 20 to 25 Hz, the impact of the number of times per second for the 1200 ~ 1500 times / min; high energy means the unit of impact energy of 60 to 70 Joules JOULE), equivalent to a success rate of 6.12 ~ 7.14 kg · m. Represented by this performance are г-7, г-9 and