吉林大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (4): 1168-1174.doi: 10.13229/j.cnki.jdxbgxb201504021

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Design of an inverse clamping piezoelectric inchworm motor with linear long distance

QU Jian-jun, GUO Wen-feng, LI Jiang, LIU Chang   

  1. School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China
  • Received:2013-11-18 Online:2015-07-01 Published:2015-07-01

Abstract: A kind of piezoelectric inchworm motor was designed based on inverse clamping and triangulation amplification. The motor can be self-locked under power-off. The output displacement of the clamping is amplified by the structure of triangulation amplification. The principle of the motor was demonstrated by experiment. The no-load and load characteristics were tested in the experiment. The clamping forces under the states of power-on and power-off were obtained and the factors influencing the forces were analyzed. When the driving frequency is 50 Hz, the motor is in optimized state. The maximum driving force is 2.1 N and the no-load velocity is 0.38 mm/s; when the frequency is 70 Hz, the motor researches the highest velocity of 0.43 mm/s.

Key words: mechanical design, piezoelectric driver, inchworm type, inverse clamping, triangulation amplication

CLC Number: 

  • TN384
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