磁力耦合联轴器三维传递转矩及特性参数分析

发布时间：2018-04-15 11:10

本文选题：磁力耦合联轴器 + 三维传递转矩　；参考：《电机与控制学报》2017年10期

【摘要】：针对传统二维方法因忽略端面效应导致磁力耦合联轴器传递转矩计算不精确问题,借助单对永磁体传递转矩的库伦表达,建立具有多对弧形永磁体结构的磁力联轴器三维转矩解析模型,通过与三维有限元模型磁场分析对比验证了该模型可行性。对磁力耦合联轴器转矩特性参数包括:磁极对数、转子厚度、磁体轴向长度、节距比等对传递转矩的影响进行了分析,研究结果表明:合理选择磁极对数并适当减小气隙厚度有利于增加传递转矩;传递转矩随内、外转子厚度的增加而变大,但变化率逐渐减小;当转子轴向长度大于径向长度时,漏磁现象显著减小;选择合适的节距比有利于提高永磁材料的利用率。提出的磁力耦合联轴器三维转矩模型可为联轴器的结构设计与优化提供理论指导。
[Abstract]:In view of the traditional two-dimensional method for ignoring the end effect leads to inaccurate calculation of transmission torque of magnetic coupling coupling with single permanent magnet torque transmission of Kulun has to establish the expression of arc of permanent magnet magnetic coupling torque three-dimensional analytical model, by analysis and comparison with the magnetic field of three dimensional finite element model to verify the feasibility of the model to include. The magnetic coupling torque characteristic parameters: poles, rotor magnet thickness, axial length, pitch effect on the torque transmission ratio was analyzed, the results show that: the reasonable choice of poles and reducing gap thickness can increase the transmission torque; torque transfer, increase the thickness of the rotor becomes large, but the change rate gradually decreases; when the rotor axial length is greater than the radial length, the phenomenon of leakage significantly; select the appropriate pitch ratio is beneficial to improve the permanent magnet The three dimensional torque model of magnetic coupling coupling can provide theoretical guidance for the structural design and optimization of the coupling.

【作者单位】：上海工程技术大学机械工程学院;东华大学机械工程学院;
【基金】：上海市教委项目(ZZGCD15086) 上海市科委项目(14110501200) 国家自然科学基金(51705305)
【分类号】：TH133.4

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