采用压电微泵散热的超磁致精密驱动器  

Development of Precision Giant Magnetostrictive Actuator with PZT Pump for Cooling

作　　者：卢全国[1] 陈定方[1] 钟毓宁[2] 罗亚波[1] 陈敏[1] 舒亮[1] 

机构地区：[1]武汉理工大学智能制造与控制研究所 [2]现代制造质量工程湖北省重点实验室

出　　处：《武汉理工大学学报（交通科学与工程版）》2007年第1期63-65,共3页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：国家"863"计划项目(批准号:2003AA414011);湖北省重点实验室开放基金项目(批准号:LMQ2006A01);湖北省自然科学基金项目资助(批准号:2005ABB023)

摘　　要：针对超磁致精密驱动器(GMA)工作时因电磁线圈发热而导致GMA定位精度差的问题,采用体积小、噪声低、无电磁干扰的压电微泵驱动水流进行散热,以控制超磁致伸棒的温度.制作了一台GMA样机,设计了一个热变形测试系统,进行了GMA在无水冷和有水冷条件下的热变形对比实验.结果表明,提出的温控措施是有效的.The electric current through coil of GMA produces lots of heat which results in the rise of temperature of GMM rod and even backset, which will affect the positioning accuracy. To solve the problem, micro PZT pump was employed for temperature controlling of GMM rod in the paper. PZT pump has low noise and does not produce electromagnetic disturbance to GMA. A prototype of GMA is designed and developed. A measurement system for thermal deformation of GMA is presented. Comparative experiment on thermal deformation of GMA with water cooling and without water cooling is carried out. Experimental data show that the method presented is useful.

关 键 词：精密驱动 超磁致 水冷 压电微泵 

分 类 号：TH703.63[机械工程—仪器科学与技术]