电主轴用电磁式主动平衡装置启动磁场仿真分析  

Simulation and analysis on starting magnetic field of electromagnetic active balancing device for motorized spindle

作　　者：樊红卫[1] 景敏卿[2] 张旭辉[1] 刘恒[2] 马宏伟[1] 毛清华[1] FAN Hong-wei;JING Min-qing;ZHANG Xu-hui;LIU Heng;MA Hong-wei;MAO Qing-hua(School of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an710054, China;School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, China)

机构地区：[1]西安科技大学机械工程学院,陕西西安710054 [2]西安交通大学机械工程学院,陕西西安710049

出　　处：《磁性材料及器件》2017年第2期18-24,共7页Journal of Magnetic Materials and Devices

基　　金：国家自然科学基金资助项目(U1361121);陕西省科学研究计划项目(16JK1494);西安科技大学博士启动金资助项目(2015QDJ039);中国博士后科学基金资助项目(2015M582692);中央高校基本科研业务费专项资金资助项目

摘　　要：为了有效抑制机床电主轴在加工过程中的实时质量不平衡,提出了一种含永磁体的电磁式在线主动平衡装置结构。在进行该平衡装置电磁设计时,启动磁场设计是否合理至关重要。根据平衡装置结构特点,采用二维简化模型,以磁场分布云图和磁通密度大小为主要指标,对磁源和气隙的影响规律进行了详细研究。根据有限元仿真分析结果,驱动电流、磁体和空气隙是启动磁场设计的敏感参数,特别是驱动电流、磁体长径比和磁体与磁性齿之间的空气隙对启动磁场的影响较大,在设计中需要根据有限元仿真的结果进行优化选择。In order to effectively reduce the real-time mass unbalance of motorized spindle during operation,the electromagnetic online active balancing device with permanent magnet was proposed.In designing the balancer,the starting magnetic field is important.According to the balancer structure feature,the two-dimension simplified model is applied and the magnetic field distribution and flux density are the evaluation indexes.This paper studies the rule about the influence of magnetic source and air gap on the starting magnetic field.The results show that the driving current,permanent magnet and air gap are the main sensitive parameters,and the current value,magnet size and gap valuebetween magnet and magnetic tooth have the great effect,which should be finally chosen according to the finite element analysis results.

关 键 词：机床电主轴 电磁平衡装置 电磁场 有限元分析 

分 类 号：TM153[电气工程—电工理论与新技术]