Title: Rotary type ultraphonic motor
Application Number: 200610037047 Application Date: 2006.08.15
Publication Number: 1909355 Publication Date: 2007.02.07
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H02N2/00;H02N2/10;H02N2/12
Applicant(s) Name: South China Agricultural University Address:
Inventor(s) Name: Zhang Tiemin
Attorney & Agent: chen wei
Abstract:
    The invention relates to a rotation ultra-sonic motor, which comprises: vibrator and rotor, wherein said vibrator is formed by adhered piezoelectric ceramic and metal elastic element; said rotor is annular and sheathes the vibrator; the tension force between vibrator and rotor via adjustable tension device can be adjusted; the contact part between the metal elastic element and the rotor is round; the inner annular surface of rotor at least has one area to match the contact part of metal elastic element. In said invention, the rounds of vibrator and the rotor are contacted, to transform the traveling vibration of metal elastic element into the vibration of vibrator; and it has small axial volume, to obtain higher torque and self-lock force, with simple structure and reliable operation.
Time: 8