高速电主轴永磁体减振系统的设计  

Design of Absorbability Vibration System for High-speed Electric Spindle

作　　者：毛华伟[1] 李松生[1] 李舒宁[2] 常菲[2] 左涛涛[1] 胡志宏[1] 

机构地区：[1]上海大学机电工程与自动化学院,上海200072 [2]长治清华机械厂,山西长治046012

出　　处：《现代机械》2009年第1期4-5,共2页Modern Machinery

摘　　要：利用永磁体的同极相斥及磁力随距离的增大而减小的基本原理,使电主轴内部减振系统的两组环形永磁体形成对转轴的径向约束和实现增加系统阻尼的作用,抑制和减小电主轴转子在径向方向上的振动。在实现高转速的前提下,使之振动大大减小,提高电主轴的回转精度。According to the principle of magnetic force will be decreased as the radial distance becoming larger between two concentric rings with homology polarity. This paper uses two groups of permanent magnet in high -speed electric spindle as a damping system which can form a radial direction restriction to the shaft and increase system damper, so that the vibration in radial direction can be restrained and decreased. And in the condition of high-speed, the vibration will be largely reduced, the rotary accuracy will be improved too.

关 键 词：高速电主轴 减振系统 永磁体 回转精度 

分 类 号：TH122[机械工程—机械设计及理论]