论文部分内容阅读
阐述了电磁卸荷溢流阀的工作原理,建立了电磁卸荷溢流阀自动卸荷和加载过程的数学模型,研究了电磁卸荷溢流阀启闭性能的影响因素,基于AMESim搭建了电磁卸荷溢流阀的仿真模型,分析了控制活塞直径和先导阀入口锥阀芯直径对启闭性能的影响规律,并进行了试验研究。研究结果表明,电磁卸荷溢流阀的启闭性能主要取决于控制活塞直径和先导阀入口锥阀芯直径;控制活塞直径主要影响电磁卸荷溢流阀的加载压力,而卸荷压力主要取决于先导阀入口锥阀芯直径,二者综合影响电磁卸荷溢流阀的切换压力差。
The working principle of the electromagnetic unloading relief valve is expounded, the mathematical model of the unloading and loading process of the unloading relief valve is established, the influencing factors on the opening and closing performance of the unloading relief valve are studied, and the electromagnetic Unloading relief valve simulation model, analysis of the control piston diameter and pilot valve inlet cone diameter on the opening and closing performance of the law, and the experimental study. The results show that the opening and closing performance of the electromagnetic unloading relief valve mainly depends on the control piston diameter and the diameter of the inlet cone of the pilot valve. The control piston diameter mainly affects the loading pressure of the unloading relief valve, and the unloading pressure mainly depends on In pilot valve inlet cone diameter, both affect the relief pressure relief valve switching pressure differential.