Great-moment oscillating piezoelectric ultrasonic motor
Title：
Great-moment oscillating piezoelectric ultrasonic motor
Application Number：
 02125284
Application Date：
 2002/07/31
Announcement Date：
 2003/01/08
Pub. Date：
Publication Number：
 1389974
Announcement Number：
 1203606
Grant Date：
 2005-5-25
Granted Pub. Date：
 2005-5-25
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 H02N 2/10, H02N 2/12
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Chu Xiangcheng, Li Longtu, Gui Zhilun
Key Words：
 Great-moment, oscillating, piezoelectric ultrasonic motor
Abstract：
 The head shaking type piezoelectricity ultrasonic motor of large moment teatures in that the upper match blocks on the stator uses the bar type staircase structure of the ultrasonic amplitude of variation to simplify the structure, increase the moment. The joint parts between the rotor and the stator are pure plane in order to increase the carrying capacity. The adjusting screw is provided at the central shaft for alignment with the conected part. The maximum moment of the motor is 1.5kgfcm, increasing nearly 3 times. The stepping lifting is larger than 10 to the power 8 steps, raised 5 times. The motor can make continuous motion or stepping motion. The circular motion can be completed within 0-360 degree interval with any stepping angle. The external diameter can be adjusted within 2-40 mm.
Claim：
Priority：
PCT：
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