Experimental study on the ultrasonic motor using a longitudinal-bending vibration converter with inclined teeth

摘要

In this paper, comparative experiments were conducted to assess the effect of the inclined teeth on the output speed characteristics of the ultrasonic motor using a longitudinal-bending vibration converter. Five prototype motors with different angles of inclined teeth were developed. The output speeds were measured at different working frequencies, driving voltages and pressures. The results indicate that the angle of inclined teeth has an obvious influence on the output speed. Among the five prototypes with different angles, the output speed was the best for the prototype with 80° inclined teeth. The maximum revolution speed of the prototype was 379 r/min at frequency of 43.5 kHz. And the output speed was the worst for the prototype with 85° inclined teeth. The maximum revolution speed of the prototype was 141 r/min at frequency of 44.2 kHz.