摘要
提出一种永磁悬浮主动驱动质量机构,设计其结构,其具有无接触、无摩擦、体积小等优点。针对永磁悬浮主动驱动质量机构,分别设计了单向永磁铁和双向永磁铁悬浮系统,并建立解析模型。通过分析并计算单向和双向永磁铁悬浮系统的磁力,推导出悬浮系统对质量块的支撑系数。在理论分析的基础上,用Ansys Maxwell 3D对结构进行了仿真验证,确定了解析模型理论计算的正确性和进一步优化结构的方法。最后,制作了试验装置并开展了试验。试验结果表明,本文双向永磁铁悬浮系统所用20 mm*12 mm*6 mm NdFeB永磁铁,最大能对质量块提供大约360N悬浮力,验证了永磁悬浮主动驱动质量系统的可行性。
In this paper,a kind of permanent magnet suspension active mass drive mechanism was proposed,and its structure was designed.It has the advantages of no contact,no friction,small volume and so on.Aiming at the active driving mass mechanism of permanent magnet suspension,the suspension systems of unidirectional permanent magnet and bi-directional permanent magnet were designed respectively,and their analytical models were established.By analyzing and calculating the magnetic force of the unidirectional and bi-directional permanent magnet suspension system,the support coefficient of the suspension system to the mass block was deduced.On the basis of theoretical analysis,the structure was simulated and verified by Ansys Maxwell 3D to determine the correctness of the theoretical calculation of the model and the method to further optimize the structure.Finally,the test device was made and the experiment was carried out in the laboratory.The test results show that the 20 mm*12 mm*6 mm NdFeB permanent magnet used in the bidirectional permanent magnet suspension system can provide 360N suspension force for the mass block to the maximum,which verifies the feasibility of the permanent magnet suspension active drive mass system.
作者
高素美
鞠全勇
金超武
GAO Sumei;JU Quanyong;JIN Chaowu(College of Mechanical and Electrical Engineering Jinling Institute of Technology,Nanjing 211169,China;College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)
出处
《微电机》
2021年第11期12-18,24,共8页
Micromotors
基金
国家自然科学基金面上项目(51875275)
金陵科技学院科研基金孵化项目(Jit-fhxm-201915)。
关键词
永磁铁
磁悬浮
主动驱动质量
支撑特性
permanent magnet
magnet suspension
active drive mass
support characteristics
