摘要
基于对传统单层永磁体涡流联轴器的磁路分析,提出一种新型整体式双层永磁体涡流联轴器。将两层永磁体以N-S对应的形式贴装于中间背铁两侧,构成整体式结构;磁感线穿过中间背铁形成整体式磁路。通过二维层模型的矢量磁位法,建立了整体式双层永磁体涡流联轴器的改进数学模型并获得了其转矩解析解;为验证解析解,构建了该新型涡流联轴器的三维几何模型,采用有限元法仿真分析了其转矩性能。结果表明:所建数学模型较为准确、转矩性能相对较好。因此,该涡流联轴器具有实际应用意义,并对多盘涡流联轴器的转矩计算具有参考作用。
Based on the magnetic circuit analysis of traditional single-layer permanent magnet eddy-current coupling,a new type of integral double-layer permanent magnet double-copper disk eddy-current coupling was designed.Two layers of permanent magnets were mounted on the sides of the middle backing iron in the form of N-S corresponding to form a whole structure.The magnetic induction passed through the middle backing iron to form monolithic magnetic circuit.According to the magnetic vector potential method of two-dimensional layer model,the improved mathematical model of the integral double-layer permanent magnet double-copper disk eddy-current coupling was established and the analytical solution was obtained.In order to verify the analytical solution,a three-dimensional geometric model of the new structure of eddy-current coupling was constructed,the torque performance was analyzed by finite element method.The results show that the mathematical model is relatively accurate and the torque performance is relatively good.Therefore,the eddy-current coupling has practical application significance and has a reference function for the torque calculation of the multi-disk eddy-current coupling.
作者
陈科
马计委
郑红梅
史洪扬
殷磊
CHEN Ke;MA Jiwei;ZHENG Hongmei;SHI Hongyang;YIN Lei(School of Mechanical Engineering,Hefei University of Technology,Hefei 230009,China;Taier Heavy Industry Co.,Ltd.,Maanshan Anhui 243071,China)
出处
《微电机》
北大核心
2020年第1期25-30,共6页
Micromotors
关键词
涡流联轴器
整体式双层永磁体
数学模型
仿真验证
转矩性能
eddy-current coupling
integral double-layer permanent magnet
mathematical model
the simulation verification
torque performance
