永磁体轴向啮合差值对筒式磁力联轴器传动性能的影响  

The Influence of Axial Meshing Difference of Permanent Magnets on the Transmission Performance of Cylindrical Magnetic Couplings

作　　者：刘伟 王杰 景甜甜 武超凡 张聪伟 陈雪辉 LIU Wei;WANG Jie;JING Tiantian;WU Chaofan;ZHANG Congwei;CHEN Xuehui(School of Mechanical and Electrical Engineering,Anhui Jianzhu University,Hefei Anhui 230601,China;Anhui Province Key Laboratory of Critical Friction Pair for Advanced Equipment,Hefei Anhui 231299,China)

机构地区：[1]安徽建筑大学机械与电气工程学院,安徽合肥230601 [2]高端装备关键摩擦副安徽省重点实验室,安徽合肥231299

出　　处：《长沙大学学报》2025年第2期1-7,共7页Journal of Changsha University

基　　金：安徽省重点研究与开发计划项目“智能高效搅拌釜式生物反应器装备研发及应用”(202104a05020049);安徽省高校省级自然科学研究项目“基于5G技术疫苗生物反应釜智能控制系统研究”(KJ2021JD23)。

摘　　要：为深入研究内、外永磁体轴向啮合差值对筒式磁力联轴器传动性能的影响,通过Maxwell软件仿真确定磁力联轴器最佳永磁体组数,并对不同轴向啮合差值下筒式磁力联轴器的最大磁感应强度、磁力线分布、轴向中部和端部气隙磁场强度、输出转矩和隔离套涡流损耗进行了有限元分析。计算结果表明:磁力联轴器的气隙磁感应强度符合周期数为8的谐波分布,周期数与永磁体组数相同;轴向啮合差值增大时,磁力联轴器的最大磁感应强度先增后减,端部气隙磁场强度增大,中部气隙磁场强度基本不变,输出转矩和隔离套涡流损耗减小。To study the mechanism of the transmission performance of a cylindrical magnetic coupling affected by axial meshing difference between inner and outer permanent magnets,Maxwell software simulations were used to determine the optimal number of permanent magnet groups.Finite element analysis examined the maximum magnetic induction intensity,magnetic force line distribution,air gap magnetic field intensity at the middle and ends of the axis,output torque,and isolation sleeve eddy current loss of the cylindrical magnetic coupling under varying axial meshing differences.The results revealed that the air gap magnetic induction intensity exhibited a harmonic distribution with a period of 8,matching the number of permanent magnet groups.As the axial meshing difference increases,the maximum magnetic induction intensity first rises and then falls,the end air gap magnetic field intensity increases,the middle air gap magnetic field intensity remains nearly constant,while the output torque and isolation sleeve eddy current loss decrease.This research provides valuable insights for the structural design and performance optimization of cylindrical magnetic couplings.

关 键 词：筒式磁力联轴器 啮合差值 磁场分布 输出转矩 涡流损耗 

分 类 号：TH133.4[机械工程—机械制造及自动化]