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常闭式电磁制动器驱动结构设计及性能分析

李孝坤1；董芳2；许宝玉3   

  1. 1、郑州铁路职业技术学院 机车车辆学院，河南郑州 450000；
    2、郑州铁路职业技术学院 继续教育学院，河南郑州 450000；
    3、河南理工大学 直驱电梯产业技术研究院，河南焦作 454000
  • 出版日期:2019-10-25 发布日期:2019-10-25
  • 作者简介:李孝坤（1990.02-），男，硕士，主要研究方向：电磁制动器、作动器设计研发。
  • 基金资助:
    河南省科技攻关项目“直驱循环电梯关键技术研究”（182102210313）；焦作市重大科技专项“直驱多轿厢循环电梯研发及产业化”资助。

Driver Architecture Design and Performance Analysis of the #br# Normal Closed Electromagnetic Brake

LI Xiao-kun1；DONG Fang2；XU Bao-yu3   

  1. 1、Locomotive and Rolling Stock College,Zhengzhou Railway Vocational & Technical College,Zhengzhou 450000,China;
    2、College of Continuing Education,Zhengzhou Railway Vocational & Technical College,Zhengzhou 450000,China;
    3、Industrial Technology Institute of Directdrive Elevator,Henan Polytechnic University,Jiaozuo 454000,China
  • Online:2019-10-25 Published:2019-10-25

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摘要： 针对常闭式电磁制动器耗能高、制动力密度小、励磁线圈发热严重等缺点，尝试将永磁体引入至制动器驱动结构中，设计出了一种电磁与永磁混合作用的新型电永磁驱动结构。结合有限元软件，采用有限元法分析了其内部磁通量分布并研究励磁线圈电流、气隙及永磁体结构形状等因素对电磁力的影响。结果表明，电磁与永磁两磁场耦合性较好，电磁吸力随电流增加及气隙的减小增幅较大，且同等条件下L形永磁体的电磁驱动结构对衔铁的吸力最大，对电磁制动器轻量化研究具有指导意义。

关键词: 电磁制动器, 驱动结构, 有限元法, 电磁吸力

Abstract: Aiming at high energy-consuming,low braking force density,serious excitation coil heating shortages of the normal closed electromagnetic brake,attempting to introduce permanent magnet into the electromagnetic driving unit,a new electromagnetic drive mechanism with hybrid electromagnets made of permanent and electromagnet is designed.Combined with the finite element analyze software,the finite element method was applied to analyze magnetic flux density distribution and analyze influence factors on electromagnetic force,the factors includes the cross section shape of permanent shape,excitation coil current,air gap.It was found that high coupling performance of electromagnetic field and permanent magnetic field,the rapid electromagnetic force grow with current increasing and decreasing of gas gap distance,under the same condition,Electromagnetic Driving Structure with L-shaped Permanent Magnet produce a high suction,It has guiding significance for lightweight research of electromagnetic brake.

Key words: Electromagnetic brake, Driver architecture, Finite element method Electromagnetic attractive force

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