公开(公告)号：US11342825B2

公开(公告)日：2022-05-24

申请号：US16741777

申请日：2020-01-14

Applicant: Guangdong University of Technology

Inventor： Zhijun Yang ,  Shengqiang Wei ,  Hao Peng ,  Youdun Bai ,  Guanxin Huang

IPC: G05B19/29 ,  H02K24/00 ,  H02K11/21 ,  G05B19/19 ,  H02K7/08 ,  H02K7/12 ,  H02K21/14

Abstract: A rigid-flexible coupling high-accuracy galvo scanning motor comprises: a stator, a rotor rotating relative to the stator, bearing seats and at least two groups of encoders. The rigid-flexible coupling bearings are installed on the rotating shaft of the rotor; each of the rigid-flexible coupling bearings comprises: a rigid bearing and a flexible hinge ring which is elastically deformable, and the flexible hinge ring is fixed in an inner ring of the rigid bearing; the at least two groups of encoders comprise: a first group of encoders and a second group of encoders; the first group of encoders is used to measure a rotation angle of the rotating shaft; and the second group of encoders is used to measure a rotation angle of the inner ring of the rigid bearing. A friction dead zone is avoided through the elastic deformation of the flexible hinge ring, thereby reducing a disturbance bandwidth.

公开(公告)号：US11626815B2

公开(公告)日：2023-04-11

申请号：US17014997

申请日：2020-09-08

Applicant: Guangdong University of Technology

Inventor： Zhijun Yang ,  Jianbin Huang ,  Yutai Wei ,  Zhongyi Gao ,  Guanxin Huang ,  Youdun Bai

IPC: H02N2/12 ,  F16M11/20 ,  H02N2/14

Abstract: A novel high-precision rigid-flexible coupling rotating platform includes a foundation, a rigid bearing, a bearing sleeve, a core rotating platform, a rotating driver and a coder; the bearing sleeve is fixed on the foundation; the rigid bearing is in rotatable drive connection with the core rotating platform, and connected with the foundation through the bearing sleeve; an upper surface of the core rotating platform is provided with a plurality of groups of flexible hinges; when the rotating driver applies a driving force to rotate the core rotating platform, the driving force elastically deforms the flexible hinge rings. The flexible hinges are used and disposed on the upper surface of the core rotating platform; without disassembling the whole rotating platform, a corresponding group of flexible hinges can be changed but an assembling relationship between other groups of flexible hinges cannot be broken.

公开(公告)号：US10564553B2

公开(公告)日：2020-02-18

申请号：US15853847

申请日：2017-12-24

Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY

Inventor： Zhijun Yang ,  Qian Li ,  Youdun Bai ,  Xin Chen ,  Xun Chen ,  Yaobin He ,  Han Sun ,  Guanxin Huang ,  Baisheng Wu

IPC: G03F7/00 ,  G03F7/20 ,  F16C11/12 ,  B23Q1/44 ,  B23Q1/36

Abstract: The present invention also discloses a multi-DOF (Degree of Freedom) large-stroke high-precision motion platform system using the guide mechanism. A large load-bearing guide mechanism comprises: a rigid frame for generating a large-stroke displacement to realize high-speed motion; a core motion platform connected with a motion portion of a non-contact actuator, connected with the rigid frame by a primary flexible hinge group and a secondary flexible hinge group, and used for generating a small-stroke precise displacement by elastic deformation of the flexible hinge groups under driving of the actuator.