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旋转冲击钻井法具有机械钻速高、使用钻铤少、防斜等优点，是攻克坚硬岩层（可钻性５ 级以上岩石）的有效手段，其核心装置是液动冲击器。现设计针对深井（４ ０００～５ ０００ ｍ ）钻井需要而设计，具有较大的工程意义和经济价值。设计过程对国内外现有冲击器的优点进行了综合，重点在于阀、活塞、密封、喷嘴及砧子等零部件的设计，同时校核了螺纹强度、八方等；另外，在工艺方面，重要部位采用了激光熔覆技术，大大提高耐磨性。
Rotary percussion drilling method with high penetration rate, the use of small drill collar, anti-inclined, etc., is to overcome the hard rock formations (drillability rock more than 5) an effective means of its core device is the hydraulic impactor. The design is designed for deep well (4 000 ~ 5 000 m) drilling needs, with great engineering significance and economic value. The design process integrates the advantages of existing impactors both at home and abroad. The emphasis is on the design of valves, pistons, seals, nozzles and anvils, as well as the verification of thread strength, squareness, etc. In addition, Parts of the laser cladding technology, greatly improving the wear resistance.