A High-Thrust Screw-Type Piezoelectric Ultrasonic Motor with Three-Wavelength Exciting Mode

被引：18

作者：

Li, Hengyu ^{[1
]}

Wang, Liang ^{[1
]}

Cheng, Tinghai ^{[1
]}

He, Meng ^{[1
]}

Zhao, Hongwei ^{[2
]}

Gao, Haibo ^{[3
]}

机构：

[1] Changchun Univ Technol, Sch Mechatron Engn, Changchun 130012, Peoples R China

[2] Jilin Univ, Sch Mech Sci & Engn, Changchun 130025, Peoples R China

[3] Harbin Inst Technol, State Key Lab Robot & Syst, Harbin 150001, Peoples R China

来源：

APPLIED SCIENCES-BASEL | 2016年 / 6卷 / 12期

关键词：

piezoelectric ultrasonic motor; screw driving; rotary-linear motion; high thrust; three-wavelength exciting mode; ACTUATOR; MM; TRANSDUCER; DIAMETER; DRIVEN; STATOR;

D O I：

10.3390/app6120442

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A high-thrust screw-type piezoelectric ultrasonic motor with a three-wavelength exciting mode is proposed in this paper. The motor mainly includes a stator and a screw output shaft, and the stator is composed of twelve rectangular piezoelectric plates and a hollow metal elastomer with an internal thread. The stator can be excited to generate the combined micro ultrasonic vibration mode. With this ultrasonic vibration mode, a three-wavelength traveling wave can be synthesized. The three-wavelength traveling wave is used to drive the screw output shaft by means of the frictional force between the stator and the shaft. Rotary-linear motion can be achieved without any additional conversion mechanism. Large thrust output can be easily obtained using a three-wavelength exciting mode. The exciting mode is analyzed in detail. The prototype is designed, simulated, and fabricated. A series of experiments are carried out and the results indicate that the maximum output thrust is 50.8 N at an excitation frequency and peak-to-peak voltage of 28.9 kHz and 120 Vp-p, respectively. The maximum force density is 247.8 N/kg.

引用

页数：12

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