气液联合式冲击器工作状态参数的研究  

Research on Pneumatic-hydraulic Impactor Based on Work Status Parameters

作　　者：刘忠[1] 邹宇[1] 张凯[1] 霍沅明 

机构地区：[1]中国矿业大学,徐州221116 [2]苏州大学,苏州215006

出　　处：《中国机械工程》2015年第24期3370-3374,共5页China Mechanical Engineering

基　　金：国家自然科学基金资助项目(51275060);苏州市科技计划资助项目(SYG201325)

摘　　要：在气液联合式冲击器工作原理的基础上,构建了冲击凿岩过程中冲击器和岩石力学特性的数学模型,并运用MATLAB和AMESim软件进行了联合仿真,获得了不同氮气室反馈压力、不同工作流量以及不同岩石特性条件下冲击器工作状态参数的曲线。仿真结果表明:对氮气室反馈压力和工作流量进行调节,可实现冲击器输出冲击能的无级调节;通过冲击系统活塞回弹速度的测量,可实现冲击器凿岩状态的辨识。On the basis of the work principles of pneumatic-hydraulic impactor,the paper constructed the mathematical model of the impactor and rock mechanics properties during the process of impact drilling,the co-simulation was carried out based on MATLAB and AMESim,the work status parameter curve of impactor was obtained under the conditions of different feedback pressures of nitrogen chamber,different work flows and different rock properties.The simulation results suggest that,adjusting feedback pressure of nitrogen chamber and work flow can realize the regulation of impact energy continuously,measurement of piston rebound speed of the impact system can realize the identification of drilling status of the iimpactor.

关 键 词：冲击器 氮气反馈压力 工作流量 岩石特性 

分 类 号：TU63[建筑科学—建筑技术科学] U455.3[建筑科学—桥梁与隧道工程]