摘要
针对传统Ⅴ形直线超声电机驱动电压较大、驱动电路复杂,在配合变压器驱动时不利于结构微型化的问题,提出了一种利用叠层压电陶瓷驱动的低压Ⅴ形直线超声电机。在对Ⅴ形直线超声电机的运行机理进行理论分析的基础上,设计了基于叠层压电陶瓷的Ⅴ形振子并进行了夹持装置的结构设计,进一步制作样机并开展了阻抗实验,测试了样机的外输出特性。实验结果表明:电机的驱动频率位于36~38 kHz,在37 kHz,50 Vpp的驱动电压激励下,其最大输出力为25.8 N,最高空载速度为1.221 m/s,可在低压驱动下输出大推力,直线超声电机的驱动性能得到了提高。
To solve the problem of the high driving voltage of traditional Ⅴ-shaped linear ultrasonic motors,which results in a complex driving circuit and the disadvantage of structure miniaturization when matching with transformer driving,a low voltage driving Ⅴ-shaped linear ultrasonic motor based on laminated piezoelectric ceramics was proposed. Based on the analysis of the working principle of the Ⅴ-shaped linear ultrasonic motor,a Ⅴ-shaped oscillator with laminated piezoelectric ceramics and a clamping device were designed. Finally,a prototype of the motor was fabricated,and the impedance and performance were measured. The experimental results show that the operating frequency of the motor is between 36 and 38 kHz while under a driving voltage of 50 Vpp and 37 kHz,the maximum output force of the motor reaches25. 8 N,and the maximum no-load velocity reaches 1. 221 m/s.
作者
黄卫清
杨成龙
沈兆琛
薛昊东
安大伟
HUANG Wei-qing;YANG Cheng-long;SHEN Zhao-chen;XUE Hao-dong;AN Da-wei(School of Mechanical and Electrical Engineering,Guangzhou University,Guangzhou 510006,China)
出处
《光学精密工程》
EI
CAS
CSCD
北大核心
2021年第1期91-99,共9页
Optics and Precision Engineering
基金
广州市科技计划基础与应用基础研究资助项目(No.202002030418)
广东省基础与应用基础研究基金区域联合基金-重点项目(No.2019B1515120017)。
关键词
超声电机
直线电机
Ⅴ形结构
低压驱动
振子设计
ultrasonic motor
linear motor
Ⅴ-shaped structure
low voltage drive
vibrator design
