复合磁-电弹簧直动式溢流阀设计与性能分析

为了解决传统机械弹簧因塑性变形、断裂等造成溢流阀工作性能劣化的问题，设计一种复合磁-电弹簧结构应用于直动式溢流阀调压弹簧中，以提高直动式溢流阀的响应速度,实现电控弹簧力。理论分析复合磁-电弹簧磁力特性，利用Maxwell软件对复合磁-电弹簧进行磁力特性仿真；采用AMESim软件对机械弹簧直动式溢流阀和复合磁-电弹簧直动式溢流阀进行动态特性仿真。对复合磁-电弹簧磁力特性及溢流阀的动态特性进行实验测试。结果表明：复合磁-电弹簧设计合理，复合磁-电弹簧直动式溢流阀动态响应特性优于现有机械弹簧直动式溢流阀。

Design and Performance Analysis of Compound Magnetic-Electric Spring Direct Action Relief Valve

In order to solve the problem of relief valve performance deterioration caused by plastic deformation and fracture of the traditional mechanical spring,a compound magnetic and electric spring structure was designed and applied to the pressure regulating spring of direct action relief valve to improve the response speed of direct action relief valve,and achieve the electric control spring force.The magnetic characteristics of the compound magnetic-electric spring were analyzed theoretically,and Maxwell software was used to simulate the magnetic characteristics of the compound magnetic-electric spring.The dynamic characteristics of the mechanical spring direct action relief valve and the compound magnetic and electric spring direct action relief valve were simulated by AMESim software.The magnetic characteristics of the compound magnetic-electric spring and the dynamic characteristics of the relief valve were tested experimentally.The results show that the design of compound magnetic-electric spring is reasonable,the dynamic response of the compound magnetic and electric spring direct action relief valve is better than that of the existing mechanical spring direct action relief valve.