基于粘滑驱动的精密旋转压电执行器研究  

Research of a Precision Rotary Piezoelectric Actuator Based on Stick-slip Principle Driving

作　　者：李元宝 纪兴华[1] LI Yuan-bao;JI Xing-hua(Laiwu Vocational and Technical College,Laiwu 271100,China)

机构地区：[1]莱芜职业技术学院,莱芜271100

出　　处：《微特电机》2018年第10期50-52,共3页Small & Special Electrical Machines

摘　　要：研究了一种基于粘滑驱动原理的旋转式精密压电执行器。运用一种十字交叉型柔性铰链将2个压电陶瓷的直线位移转化为旋转角位移,然后通过与转子之间可调的摩擦接触实现执行器的粘滑运动。在锯齿波电压信号的驱动下,该压电执行器能够输出大行程、高分辨率的角位移。详细介绍了该压电执行器的结构组成与工作原理,并对执行器的运动进行了分析。建立了试验系统对加工的执行器样机的工作性能进行了测试。A precision rotary piezoelectric actuator based on stick-slip principle driving was studied.Using a decussate type flexure hinges,the linear displacements of the two piezoelectric ceramic components can be transformed into angular displacement.Then the stick-slip motion can be achieved utilizing the frictional contact between the rotor and the stator.Under the actuation of sawtooth wave voltage signals,the proposed piezoelectric actuator can generated rotary motions with long range and high resolution.The configuration and the working principle of the piezoelectric actuator were introduced in detail.The motion of the piezoelectric actuator was also analyzed.The working performance of the actuator prototype was tested by the established experimental system.

关 键 词：压电执行器 粘滑驱动 步进式 精密 压电陶瓷 

分 类 号：TM351[电气工程—电机]