【作者】 金鑫；

【导师】 田杰；

【作者基本信息】 合肥工业大学 ， 机械工程（专业学位）， 2016， 硕士

【摘要】 联轴器作为机械传动系统中的一种重要部件,一直广泛应用在工业领域的各个角落。随着永磁体材料技术的不断发展,磁力联轴器以其非接触式传动、软启动、无污染、低噪音等性能特点正慢慢广泛应用到矿山机械、风力、石油化工等行业中,磁力联轴器正已经逐渐成为联轴器发展的一个重要的分支。本文结合鼠笼异步电机以及一般磁力联轴器的结构特点,将异步电机双笼内转子结构应用到磁力联轴器中,从而得到一种双笼式永磁涡流联轴器结构,该联轴器不仅可以避免普通永磁联轴器在高温环境下会出现退磁问题,而且由于其结构特点可应用于启动频繁启动性能要求较高的工作场合。本文首先结合一般磁力联轴器以及双笼异步电机的结构特点对双笼式永磁涡流联轴器进行总体结构方案设计,其次运用等效磁路法和能量流动关系给出了电磁转矩理论计算公式,运用Maxwell软件对三种不同内转子槽型的联轴器进行仿真分析,结合理论公式和分析结果得出了双笼式永磁涡流联轴器的性能特点,并分析各结构参数对联轴器传递性能的影响情况,再依据传热学基本原理依托Wor-kbench平台研究联轴器工作状态下的温升分布,证明了外转子永磁体温度在允许工作范围之内,最后搭建实验平台,通过对实验样机测试验证了文中有限元分析方法具有良好的可行性和准确性。更多还原

【Abstract】 Coupling as an important part in mechanical transmission system, it has been widely used in every corner of the industry. With the development of permanent magnet materials technology, magnetic coupling are slowly and widely applied to mining machinery, wind power, petrochemical and other industries with its non-contact transmission,soft start, no pollution and low noise characteristics. Coupling has gradually become an important branch of the coupling development.In this paper,combine the squirrel cage induction motors and structural characteristics of the general magnetic coupling,apply the double-cage asynchronous motor rotor structure into the magnetic coupling, thereby obtaining a double-cage structure permanent-magnet eddy-current coupling. The coupling not only avoid the common problem of demagnetization of permanent magnet coupling occurs in a high temperature environment, but also can be used for frequently starting and higher starting performance occasions requirements of the workplace.In the paper, firstly, combine with the general magnetic coupling and double-cage induction motor cage structure features,designing the overall structure of permanent-magnet eddy-current coupling. Then use of equivalent magnetic circuit method and energy flow relationship derive the electromagnetic torque theory formula. Analysis three different inner rotor groove through the ASOFT Maxwell. Combined with theoretical formulas and analysis results obtain the performance characteristics of double-cage permanent-magnet eddy-current coupling,and analyse the transmission performance of the coupling structural parameters. And then based on the basic principle of heat transfer, relying on the Workbench platform study the coupling temperature rise distribution. Conclusions proof that outer rotor permanent magnet within the allowable operating temperature range. Finally, through prototype testing to verify the finite element analysis method has good feasibility and accuracy.更多还原