利用齿槽转矩的爪极式磁悬浮力矩马达  

Claw-pole Magnetic Levitation Torque Motor Utilizing Cogging Torque

作　　者：黄家辉 阮健[1] HUANG Jia-hui;RUAN Jian(School of Mechanical Engineering,Zhejiang University of Technology,Hangzhou,Zhejiang 310014)

机构地区：[1]浙江工业大学机械工程学院,浙江杭州310014

出　　处：《液压与气动》2024年第3期1-8,共8页Chinese Hydraulics & Pneumatics

基　　金：国家重点研发计划(2019YFB2005201)。

摘　　要：针对现有的2D阀用动铁式力矩马达中位调节困难的问题,设计了一种利用定转子之间齿槽转矩进行中位调节的爪极式磁悬浮力矩马达。首先通过建立电磁特性仿真模型分析比较了矩形爪极和梯形爪极的电磁转矩和齿槽转矩,从而确定了爪极式磁悬浮力矩马达的拓扑结构。随后基于等效磁路法推导出了该力矩马达电磁转矩的定性公式,并设计了一个正交试验以确定设计参数对电磁转矩的敏感性。依据仿真优化后的结构参数加工了实验样机,搭建了实验测试台对该力矩马达的齿槽转矩和电磁转矩的矩角特性进行测试。结果表明:该力矩马达的电磁转矩随转角减小,具有正磁弹簧刚度,并且能够有效的利用齿槽转矩进行中位调节。Aiming at the problem that the existing moving iron torque motor for 2D valve is difficult to adjust the neutral position,this paper designs a claw-pole magnetic levitation torque motor that uses the cogging torque between the stator and the rotor to adjust the neutral position.Firstly,the electromagnetic torque and cogging torque of rectangular claw pole and trapezoidal claw pole are analyzed and compared by establishing a simulation model of electromagnetic characteristics,and the topology structure of claw pole magnetic suspension torque motor is determined.Then based on the equivalent magnetic circuit method,the qualitative formula of the electromagnetic torque of the torque motor is deduced,and an orthogonal test is designed to determine the sensitivity of the design parameters to the electromagnetic torque.Based on the structural parameters optimized by simulation,an experimental prototype was machined,and an experimental test rig was built to test the torque-angle characteristics of the electromagnetic torque and the cogging torque of the torque motor.The test results show that the electromagnetic torque of the torque motor decreases with the rotation angle,has a positive magnetic stiffness,and can effectively use the cogging torque for neutral adjustment.

关 键 词：力矩马达 齿槽转矩 电磁转矩 2D阀 中位调节 

分 类 号：TH137[机械工程—机械制造及自动化]