The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 10, 2018
Filed:
Apr. 08, 2015
Hefei University of Technology, Hefei, Anhui, CN;
Liandong Yu, Anhui, CN;
Chengliang Pan, Anhui, CN;
Liling Han, Anhui, CN;
Huaxia Deng, Anhui, CN;
Weishi Li, Anhui, CN;
Haojie Xia, Anhui, CN;
Wei Zhang, Anhui, CN;
Siying Lu, Anhui, CN;
HEFEI UNIVERSITY OF TECHNOLOGY, Hefei, Anhui, CN;
Abstract
A micro inchworm-type piezoelectric-driven rotating joint mechanism includes a U-shaped base, bearing pedestals, bearing brackets, bearing rings, piezoelectric ceramic plates, a rotating shaft, a rotating sleeve and end caps. Every bearing ring is divided into two half-rings which are coupled to the bearing pedestals via two bearing brackets. One end of every piezoelectric ceramic plate is fixed to one bearing pedestal, and the other end thereof is coupled to one bearing ring, so that every piezoelectric ceramic plate stretches and deforms under the driving of voltage for driving the bearing ring to achieve micro motions. Two bearing driving modules are respectively symmetrically mounted at two sides of the U-shaped base, and the rotating shaft is supported on the two bearing rings, so that the stepping motion of the rotating shaft is implemented by controlling the timing sequence of clamping, release and rotation of the two bearing driving modules.