超声马达定子磨损行为研究  

Study on Wear Properties of Stator of a Traveling Wave Ultrasonic Motor

作　　者：曲建俊[1] 罗云霞[1] 宋宝玉[1] 齐毓霖[1] 

机构地区：[1]哈尔滨工业大学机电学院

出　　处：《中国机械工程》2003年第19期1704-1706,共3页China Mechanical Engineering

基　　金：哈尔滨工业大学跨学科交叉性研究基金资助项目(H IT. MD2 0 0 2 . 0 8) ;黑龙江省自然科学基金资助项目(E9814 )

摘　　要：利用自制的超声马达摩擦特性模拟试验台 ,研究了接触预压力和负载力矩对超声马达定子磨损状态的影响 ,提出用绝对转差率 Sf描述定子和转子相对滑动速度变化率。借助于光学显微镜对定子磨损机理进行了分析。结果表明 ,马达定子磨损特征的变化与接触预压力和负载力矩有关 ,可以用 Sf表征。当 Sf<0 .3 4时 ,定子齿面主要表现为表面抛光磨损特征 ;当 Sf>0 .52时 ,定子齿面出现较严重的犁沟磨损特征。Wear properties of the stator of a traveling wave ultrasonic motor (TWUSM) are investigated on a simulating tester of friction characteristics in the paper,and the effects of contact pre-load and load torque are examined.The changing rate of the relative sliding speed between the stator and the rotor can be described with absolute slipping ratio S f. The wear mechanisms of the stator are analyzed by means of optical microscope.It has been found that wear properties of the stator varies with pre-load and load torque, which is correlative to the absolute slipping ratio S f. When S f<0.34, tooth surface of the stator presents mainly polishing and slight fatigued peeling wear properties.When S f>0.52, it became serious plough wear properties.

关 键 词：超声波振动 超声马达 定子 磨损 

分 类 号：TH117[机械工程—机械设计及理论] TM356[电气工程—电机]