电磁钳盘式制动器驱动机构的磁路仿真研究  

Magnetic Circuit Simulation Research on Electromagnetic Caliper Disc Brake Drive Mechanism

作　　者：郭峻豪 汪旭东[1] 许孝卓[1] 封海潮[1] 刘亚平[1] 

机构地区：[1]河南理工大学电气工程与自动化学院,河南焦作454000

出　　处：《测控技术》2017年第5期131-135,共5页Measurement & Control Technology

基　　金：国家自然科学基金项目(U150410164);教育部高校博士点基金项目(20114116110003);河南省教育厅自然科学研究项目(13A470337)

摘　　要：针对传统曳引式电梯制动器安装在顶层且尺寸和重量大的缺点,结合车用电磁盘式制动器的工作机理,提出一种适用于直驱电梯的新型电磁制动器结构,得出该结构的等效磁路图。利用基尔霍夫定律和能量虚位移法,推导出此结构的数学解析式,讨论了在不同电流和位移情况下水平方向的电磁力数学表达式。通过有限元分析软件建立三维模型,对电流、位移关系的仿真值和计算值进行对比,多角度验证了电磁力数学公式的正确性,同时证明了该结构的可行性。In order to overcome the shortcomings of the traditional elevator brake installed at the top and large size and heavy weight, combining with working mechanism of electromagnetic disk brake for vehicle, a new di- rect-drive elevator electromagnetic brake structure is proposed, and equivalent magnetic circuit diagram of the structure is obtained. Based on Kirchhoff＇ s law and energy virtual displacement method, the mathematic analyt- ic expressions of the structure are deduced, and the mathematical expressions of electromagnetic force in hori- zontal direction are discussed under different current and displacement conditions. By means of finite element method （FEM）, the three-dimensional model is established. By comparing the simulation value and the calcu- lated value of the current and displacement relationship, the correctness of the mathematical formula of electro- magnetic force is verified from multiple perspectives, at the same time the feasibility of the structure is proved.

关 键 词：直驱电梯 制动器 电磁力 有限元法 

分 类 号：TM574[电气工程—电器]