对潜孔钻机及其破岩钻孔装置——冲击器与潜孔钻头的工作参数、结构与性能参数进行了综合分析与研究,并在数理统计基础上回归了相关的参数方程;还对冲击器中由活塞与钎具构成的撞击系统的强度进行了多样化分析,提出了应变能、应变与动量定理等速算公式。这些方程与公式将潜孔钻机、冲击器与潜孔钻头有机地连系在一起,为之提供了一套完整的实用设计公式。 The working parameters, structure and performance parameters of the down-hole drilling rig and its rock breaking device-impactor and down-the-hole bit are comprehensively analyzed and studied, and the related parametric equations are returned on the basis of mathematical statistics; In the device, the strength of the impact system composed of the piston and the brazing tool is diversified, and the formula of the equivalent velocity of strain energy, strain and momentum theorem is proposed. These equations and formulas link down-hole drills, impactors and downhole drills organically, providing a complete set of practical design formulas.