导磁型磁流变换向阀设计及性能分析  

Design and Performance Analysis of Magnetically Permeable Magnetic Current Reversing Valve

作　　者：杨瑜君 吴张永[1] 蒋佳骏 朱启晨 莫子勇[1] 吕飞 YANG Yu-jun;WU Zhang-yong;JIANG Jia-jun;ZHU Qi-chen;MO Zi-yong;LV Fei(Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650500;Yunnan Xingchangjiang Industrial Co. , Ltd. , Kunming, Yunnan 650111)

机构地区：[1]昆明理工大学机电工程学院,云南昆明650500 [2]云南兴长江实业有限公司,云南昆明650111

出　　处：《液压与气动》2021年第4期146-152,共7页Chinese Hydraulics & Pneumatics

摘　　要：针对因比例电磁铁响应频率限制及弹簧疲劳失效等导致换向阀响应速度不足的问题,基于磁流体磁流变特性以及惠斯通电桥原理,设计了一种主动引导磁力线方向的磁流变换向阀,建立其数学模型。使用MATLAB/Simulink软件对导磁型磁流变换向阀进行动态分析,得到不同电流组合下阀芯位移-时间特性曲线,并测试了导磁型磁流变换向阀的动态响应性能。测试与分析结果表明,导磁型磁流变换向阀动态响应时间较同通径电磁换向阀有显著缩短。Aiming at the problem of insufficient response speed of the reversing valve due to the limited response frequency of the proportional solenoid and spring fatigue failure.Based on the magneto-rheological properties of the magnetic fluid and the principle of Wheatstone bridge,a magnetorheological current reversing valve that actively guides the direction of magnetic field lines is designed,and its mathematical model is established.Using MATLAB/Simulink software,the characteristic curve of valve core displacement-time under different current combinations is obtained,and then the dynamic response performances of the magnetic-permeable magnetic current conversion valve are tested.The results show that the dynamic response time of the magnetic-permeable magnetic current conversion valve is significantly shorter than that of the electromagnetic directional valve with the same diameter.

关 键 词：磁流体介质 磁流变阀 换向阀 数学模型 换向响应时间 

分 类 号：TH137[机械工程—机械制造及自动化]