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为了研究液压凿岩机冲击机构的泄漏机理与影响因素,建立了冲击机构泄漏量的数学模型,结合液压凿岩机的结构和工作原理,在AMESim软件中建立了冲击机构的动力学仿真模型。利用泄漏模块分析了压差、密封长度和间隙等参量对泄漏量的影响,仿真分析结果与数学模型得出结论一致,对于液压凿岩机冲击机构的间隙选择及泄漏量的有效控制具有指导意义。
In order to study the leakage mechanism and influencing factors of impact mechanism of hydraulic rock drill, a mathematical model of the leakage of impact mechanism was established. Combined with the structure and working principle of hydraulic rock drill, a dynamic simulation model of impact mechanism was established in AMESim software. The effects of pressure drop, seal length and clearance on leakage were analyzed by using the leakage module. The results of simulation analysis are consistent with those of the mathematical model. It is instructive for the selection of the clearance and the effective control of the leakage rate of hydraulic rock drill impact mechanism.