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液动冲击器工作是否正常，直观地反映在重锤上。因此，观察和记录重锤工作时的瞬时位态变化，是正确指导冲击器调试工作的重要环节。为此，我们对阀式液动冲击器进行初步测试，通过对记录曲线的分析，提出了许多有关调试和设计参考方面值得探讨的问题，一、用于测试的726类型冲击器结构参数1．冲击器直径为66毫米。2．重锤重量G为11公斤。3．理论举锤的工作压强P＞0.89公斤/厘米~2（举锤面积为12.4厘米~2）。4．重锤上行15毫米限位拉开下阀，然后惯性上
The hydraulic impactor works normally and is intuitively reflected on the weight. Therefore, observing and recording the momentary changes in the working state of the hammer is an important part of correctly guiding the impactor’s debugging work. To this end, we conducted a preliminary test of the valve-type hydraulic impactor. Through the analysis of the recording curve, we proposed a number of problems that are worth exploring in terms of debugging and design reference. First, the structural parameters of the 726-type impactor used for testing. The impactor diameter is 66 mm. 2. Weight weight G is 11 kg. 3. The working pressure of the theoretical lifting hammer is P>0.89 kg/cm~2 (lifting hammer area is 12.4 cm~2). 4. Weight limit of 15 mm upward pull lower valve, then inertia