永磁涡流联轴器结构参数的系列化分析研究

Series Analysis and Study on Structural Parameters of Permanent Magnet Eddy Current Coupling

在综述永磁涡流联轴器特点及现状的基础上,提出对相关参数系列分析的必要性。通过永磁涡流联轴器原理的介绍,建立仿真模型,并运用等效磁路法对永磁涡流联轴器的磁场强度进行计算,结合楞次定律和安培定律对多功率的联轴器的转矩进行计算。基于Ansoft有限元分析,对多功率的永磁涡流联轴器的转速差、铜盘厚度、铝盘外形尺寸和永磁体径向尺寸进行了系列化仿真分析,得到多个参数随着不同功率的变化规律,为永磁涡流联轴器系列化量产提供设计依据。

Based on the characteristics and current situation of permanent magnet eddy current coupling,the necessity of series analysis of related parameters is proposed.Through the introduction of the principle of permanent magnet eddy current coupling,the simulation model is established,and the magnetic field strength of the permanent magnet eddy current coupling is calculated by the equivalent magnetic circuit method,combined with Lenz’s law and Ampere’s law for the multi-power coupling.The torque is calculated.Based on Ansoft finite element analysis,serialized simulation analysis of the rotational speed difference,copper disk thickness,aluminum disk outer dimension and permanent magnet radial dimension of multi-power permanent magnet eddy current coupling was carried out,and multiple parameters were obtained with different powers.The law of change provides a design basis for serial mass production of permanent magnet eddy current coupling.