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一、什么叫作冲击回转钻进？答：由地面上的钻机带动钻具进行回转，并通过钻具施予孔底岩石一定轴心压力的同时，冲击器以每分钟几百次至几千次的周期性冲击，使钻头既有回转作用又有冲击作用，进行综合性破碎岩石的一种钻进方法，称为冲击回转钻进。二、冲击回转钻进所用的冲击器有哪些种类？答：据了解，目前世界各国所用的冲击器类型很多，但按其动力方式可分为如下三种：
First, what is the impact of turning drilling? A: The drilling rig on the ground will drive the drilling tool to revolve, and through the drilling tool, it will exert a certain axial pressure on the rock at the bottom of the hole. At the same time, the impactor will periodically impact from hundreds to thousands of times per minute, Rotation has another impact, a comprehensive broken rock drilling method, known as impact rotary drilling. Second, the impact of rotary drilling used in what kind of impactor? A: It is understood that there are many types of impactors currently used in various countries in the world, but according to their motivation, they can be divided into the following three types: