研究了液压支架升降回路组成机构和工作原理,根据液压原理图,搭建了系统的AMEsim仿真模型,对电液换向阀的运动特性和该系统的动态特性以及支架在初空载、支撑、卸载过程进行了仿真分析,为设计者提供各模型运动参数,为进一步分析和优化系统提供理论依据。 The structure and working principle of hydraulic lifting circuit are studied. According to the hydraulic principle diagram, the system simulation model of AMEsim is set up. The dynamic characteristics of the electro-hydraulic directional control valve and the dynamic characteristics of the system, Process simulation analysis for the designer to provide the model motion parameters, to provide a theoretical basis for further analysis and optimization of the system.