论文部分内容阅读
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 of the hydraulic support is taken as the research object, the structure and working principle are analyzed, and the AMESim model of the whole working system is established. The influence of the friction of the sealing ring, the half angle of the valve core and the control pressure of the pilot valve on the dynamic characteristics of the valve spool of the main control valve are discussed emphatically. Vibration is the main reason that causes the low valve lifespan. Based on this, Corresponding control measures.