磁场调制型磁齿轮动态性能分析  

Analysis of Dynamic Performance of Magnetic Field Modulated Gear

作　　者：刘美钧 包广清[1] 候晨晨[1] 左正璞 刘明敏[2] 

机构地区：[1]兰州理工大学电信学院,甘肃兰州730050 [2]西南科技大学信息学院,四川绵阳621010

出　　处：《机械传动》2017年第3期21-26,共6页Journal of Mechanical Transmission

基　　金：国家自然科学基金(51267011)

摘　　要：磁场调制式磁齿轮是一种新兴技术,与传统机械齿轮相比,可有效地避免振动、噪声、润滑等问题。但是其刚度低,当原动机转矩发生扰动或速度产生变化时,就会导致磁齿轮出现暂态振荡。在分析磁齿轮基本原理的基础上,设计了一种传动比为5.5的磁场调制型磁齿轮,并利用电磁场有限元法对不同结构类型的磁齿轮进行性能分析,选出效率最高的一种结构类型,通过在磁齿轮高速动子铁芯中引入具有闭合回路的阻尼绕组,当发生暂态振荡时,阻尼绕组中产生感应电流,进而产生阻尼电磁力矩,抑制传动轴系的机械振动,保持系统的稳定性。此外,还分析了每极阻尼绕组参数对磁齿轮瞬态特性的影响及变化规律。The magnetic field modulated gear is a new technology, compared with the traditional mechani- cal gear, it can effectively avoid vibration, noise, lubrication and other issues. But its stiffness is low, which will lead to the transient oscillations undergoing the torque of prime motor is disturbance or the velocity changes. Based on the analysis of the basic principle of magnetic gear, a magnetic field modulated gear is designed, whose transmission ratio is 5.5, and the performance of the magnetic gear with different structures is analyzed by using the electromagnetic field finite etement method. A structure type with the highest efficiency is selected, in the iron core of high speed mover of selected gear by introducing damping winding with closed loop, in the process of transient oscillations, the current will be induced in the damping winding, which will produce damping electromagnetic torque can inhibit the mechanical vibration of transmission shaft and maintain the stability of system. In addition, the influence and variation law of the damping wingding parameters on the transient characteristics of magnetic gear are analyzed.

关 键 词：磁齿轮 有限元分析 损耗 阻尼绕组 

分 类 号：TH132.41[机械工程—机械制造及自动化]