实心盘式磁力耦合器转矩特性分析  

Torque Characteristic Analysis of Solid Disk Magnetic Coupler

作　　者：杨超君[1] 谷礼祥 马超[1] 孙现友 王剑 YANG Chaojun;GU Lixiang;MA Chao;SUN Xianyou;WANG Jian(School of Mechanical Engineering,Jiangsu University,Zhenjiang Jiangsu 212013,China)

机构地区：[1]江苏大学机械工程学院,江苏镇江212013

出　　处：《机械设计与研究》2024年第1期220-224,229,共6页Machine Design And Research

基　　金：国家自然科学基金资助项目(51875254)。

摘　　要：针对磁力耦合器的输出转矩计算问题,以一台六对极间隔排布实心盘式磁力耦合器为研究对象,运用等效磁路法,将相邻涡流共同作用产生的感应磁场作为一条支路引入到等效磁路模型中,建立磁路分析计算模型,在考虑趋肤效应基础上,推导磁力耦合器输出转矩计算公式。运用三维有限元分析,模拟得到铜导体盘中磁通密度、涡流分布规律,以及稳定运行时耦合器输出转矩随气隙厚度、转速差的变化规律,并通过实验,将输出转矩实验值与计算值、模拟值进行对比验证,证实了计算模型的准确性,为磁力耦合器的转矩计算提供了较为准确的计算方法。In order to accurately calculate the output torque of the magnetic coupling,the solid disk magnetic coupler composed of six pole pairs permanent magnet spacing arrangement is studied.In this article,the equivalent magnetic circuit method is used for calculations.The new equivalent magnetic circuit model is proposed to consider the magnetic field generated by the joint action of adjacent eddy currents.Based on the skin effect,the output torque calculation formula of the magnetic coupler is derived.The magnetic flux density and eddy current distribution in the copper conductor disk are simulated by 3⁃D finite element analysis,the variation of the output torque with the difference of air gap and the speed during stable operation is obtained.The torque was calculated using the method proposed and was compared with those obtained by the 3⁃D finite element method and experiment,respectively,which verifies the accuracy of the toque formula.The analysis model proposed provides a more accurate calculation method for the torque calculation of the magnetic coupling.

关 键 词：实心盘式磁力耦合器 相邻涡流 趋肤效应 输出转矩 有限元分析 

分 类 号：TH133.4[机械工程—机械制造及自动化]