Based on the analysis of current control programs of the connecting and dismounting rods? coupling for the down-the-hole,the automatic control program is put forward for the propulsion floated by rotation pressure controlling,and the program is tested.

• 分析了新型液压碎石机液压系统的特点及要求；研究设计了新型的液压控制系统；并介绍了其组成与工作原理；以及流量和压力的调节与控制原理.；该新型液压控制系统可在操纵台上直接控制碎石冲击器的工作参数和性能参数；系统效率高；操纵控制舒适方便；能适应不同工况的需要