:试验结果发现 ,当行程加大时 ,获得较高的冲锤末速度 (5 .43m/s) ,单次冲击功 34 6 .45J。当活塞运动所需瞬时流量已大大超过了水泵供水的供给量时 ,冲击器仍能稳定地工作 ,这体现了射流冲击器作为一开放的系统所特有的流量可自动补偿的优点。射流冲击器对负载的适应能力较高 ,且在大行程条件下 ,增加锤重可较大幅度地提高单次冲击功。 The test results show that when the stroke is increased, a higher hammerhead speed (5.43m / s) and a single impact energy of 34.6.45J are obtained. The impactor still operates stably when the instantaneous flow required for piston movement exceeds the supply of pump water, demonstrating the advantage that the jet impactor, as an open system, can automatically compensate for the flow rate. Jet impacter adaptability to load higher, and in a large stroke conditions, increasing the hammer weight can greatly improve the single impact energy.