液压凿岩机是七十年代发展起来的新型高效率凿岩设备,虽然诞生才不过十年,但已得到了日益广泛的应用。到目前为止,虽然对液压冲击机构先后有过一些理论描述,但能提供工程实用的方法还较少报导。我们在YYG—80液压凿岩机研制中采用等加速模型,这种方法将液压冲击机构活塞和阀的运动视作等加速过 Hydraulic rock drill was developed in the seventies of new high efficiency rock drilling equipment, although only ten years after its birth, but has been increasingly widely used. So far, although there have been some theoretical descriptions of hydraulic impact mechanisms, less work has been done to provide engineering methods. We YYG-80 hydraulic rock drill in the use of equal acceleration model, this method will be the hydraulic impact mechanism piston and valve movement as accelerated