液压支架用电液阀的启动振动特性研究  

Study on Vibration Characteristics of Starting Electrohydroulic Valve for Hydraulic Support

作　　者：武振忠 李优[2] 

机构地区：[1]大同煤矿集团机电装备科大机械有限公司,山西大同037002 [2]太原理工大学机械工程学院,太原030024

出　　处：《煤矿机械》2015年第8期73-75,共3页Coal Mine Machinery

基　　金：山西省科技重大专项(20111101025)

摘　　要：以液压支架用电液阀作为研究对象,分析其结构和工作原理,建立了整个工作系统的AMESim模型。重点讨论了密封圈摩擦力、阀芯半角、先导阀控制压力对主控阀阀芯动态特性的影响,通过仿真研究分析可知,振动是造成阀芯寿命低的主要原因,在此基础上提出了相应的控制措施。The electro-hydraulic valve used on hydraulic support is selected as the study object , the structure and working principle is analyzed , the completed working system is also set up in AMESim. Focuses on the influences of the O ring stiction force, half angle of the valve, the inlet pressure of the pilot valve and the load of hydraulic support toward the dynamic cbaracterlstics of the master valve. It can be concluded that vibration is the main reason leading to the short life of the valve, and measures are taken to eliminate the vibration.

关 键 词：电液阀 电液主控阀 AMESim模型 液压支架 

分 类 号：TH137.52[机械工程—机械制造及自动化]