为解决凿岩台车钻孔参数自动匹配的问题，对冲击回转凿岩形式的钻进过程进行建模仿真，分析不同推进压力、冲击压力和回转压力等凿岩参数对钻进效率的影响，获取最佳钻进状态下凿岩参数的匹配关系； 在此基础上，设计基于推进压差和回转压力的钻孔参数自动匹配液压控制系统，并用于某型凿岩台车进行实测，验证以下结论: 1)冲击压力能够随推进压差变化自动调整; 2)随着回转压力变化，系统能够判别卡钎状态，并准确做出减缓钻孔速度、停止推进、开始回退等响应动作。

The impactrotary drilling process of rock drilling jumbo is modeled and simulated; and the influences of different drilling parameters such as propulsion pressure, impact pressure and rotary pressure on drilling efficiency are analyzed to obtain the matching relation of drilling parameters in the optimal drilling state. And then an automatic matching hydraulic control system for drilling parameters based on propulsion pressure difference and rotary pressure is designed. The results show that: (1) The impact pressure can be adjusted automatically with the change of propulsion pressure difference. (2) The system can identify the state of drill jamming according to the change of rotary pressure, and can respond to motions such as slowing down drilling speed, stopping propulsion and countermarching correctly.