MULTI-SPOKE-TYPE ULTRASONIC MOTOR - UNIV NANJING AERONAUTICS & ASTRONAUTICS

Title:

MULTI-SPOKE-TYPE ULTRASONIC MOTOR

Document Type and Number:

WIPO Patent Application WO/2018/153091

Kind Code:

A1

Abstract:

A multi-spoke-type ultrasonic motor, related to the technical field of motors, comprising: a rotating shaft (1), a fastening sleeve cylinder (2), a spring (3), a rotor (4), a stator (5), a fastening screw (6), and piezoelectric ceramics (7). The rotor (4), the stator (5), the spring (3), and the fastening sleeve cylinder (2) are sequentially connected via the rotating shaft (1). The stator (5) is an annular metal plate having internal spoke-like teeth. The upper surface and the lower surface of the stator (5) are provided with identical stator spoke-like teeth for contacting the rotor (4). The rotor (4) and the stator (5) are in close contact under the effect of prestressing of the spring (3). The piezoelectric ceramics (7) are annular plates; upper and lower plates respectively are affixed on the upper and lower surfaces of the stator (5). The motor is capable of increasing the output power of the ultrasonic motor.

Inventors:

YANG YING (CN)
VASILJEV PIOTR (CN)
MAZEIKA DALIUS (CN)
BORODINAS SERGEJUS (CN)
QIU JIANMIN (CN)
HONG XIN (CN)

Application Number:

PCT/CN2017/103728

Publication Date:

August 30, 2018

Filing Date:

September 27, 2017

Export Citation:

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Assignee:

UNIV NANJING AERONAUTICS & ASTRONAUTICS (CN)

International Classes:

H02N2/16; H02N2/12

Foreign References:

CN104821742A	2015-08-05
CN106059378A	2016-10-26
CN107046380A	2017-08-15
CN101572507A	2009-11-04
CN105634324A	2016-06-01
JPH0345172A	1991-02-26
US20010013740A1	2001-08-16

Other References: