【摘要】 为了电机结构的紧凑性,考虑无变幅杆定子的设计方案,设计制作不同结构振动片式压电电机,所设计电机的定子由压电换能器和振动片组成.通过对不同结构形式定子的样机的有、无变幅杆,以及不同倾角振动片电机输出特性的进行对比实验与分析.结果表明,振动片倾角值存在一个最优的匹配范围,而预压力存在一个最佳值;当电机尺寸较小时,可以省去变幅杆部分,使电机结构更加紧凑;振动片式驻波型压电电机在一定的条件下具有反转效果.更多还原

【Abstract】 For the compactness of the ultrasonic motor,considering the designing scheme of stator without horn,the vibrating reeds piezoelectric motor with different configurations is designed,the stator of which is composed with piezoelectric transducer and vibrating reeds.A comparison and analysis of the experiments for the motor’s output characteristics is given,when the stators with and without the horns as well as the stators with vibrating reeds using different oblique angles are used.The results have indicated that there is an optimal range for the values of the oblique angles of vibrating reeds and an optimal value for the pre-pressure,that the horn can be neglected when the size of the motor is not big for the sake of the compactness of the motor,and that the standing wave piezoelectric motor can make the rotor rotates reversely in a certain condition.更多还原