Patents by Inventor Pinkuan Liu

Pinkuan Liu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9966812
    Abstract: A static vacuum shafting device for an integrated rotary transformer includes: a driving component, a vacuum sealing cover, a position detection component, a shafting base, a vacuum insulation sleeve, three O-shaped seal rings, a first rolling bearing, a second rolling bearing, a bearing gap ring, a transmission shaft, a shafting flange, a walking rolling bearing, and two bearing glands. The driving component includes a motor stator, a rotary transformer stator, a motor and rotary transformer integrated rotor, a rotor flange plate and a stator-fixing pressing block which are coaxially assembled. The vacuum sealing cover includes a sealing cover upper flange, a sealing cover, and a sealing cover lower flange. The shafting device couples a motor shaft to a load rigidly, thereby achieving a “zero-transmission” method and a “zero-leakage” sealed transmission of a shafting, and is particularly suitable for a power transmission of a vacuum robot in a high-vacuum environment.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: May 8, 2018
    Assignee: SHANGHAI JIAO TONG UNIVERSITY
    Inventors: Bo Zhang, Pinkuan Liu, Xiaobo Zhu, Yujie Li
  • Publication number: 20160141195
    Abstract: This invention provides a multi-shaft vacuum manipulator shafting testing device that is simple in structure, convenient for assembly and disassembly and strong in practicality. That device consists of test bed, manipulator direct drive unit, angle encoder installation support, angle encoder, connecting flange and laser displacement detecting device. The manipulator direct drive unit is mounted on the test bed through the flange. The angle encoder installation support is fixed through bolt on the test bed on one end, and the other end has the angle encoder installed on it through bolt. One end of the connecting flange connects with the shafting of the manipulator direct drive unit. The other end is connected by a flexible coupling with the angle encoder shaft. The flexible coupling compensates the axial movement error and the nonalignment error between the encoder and connecting flange to avoid too much force acting on the bearing of the angle encoder.
    Type: Application
    Filed: January 30, 2016
    Publication date: May 19, 2016
    Inventors: Pinkuan Liu, Jing Wu
  • Publication number: 20160020662
    Abstract: A static vacuum shafting device for an integrated rotary transformer includes: a driving component, a vacuum sealing cover, a position detection component, a shafting base, a vacuum insulation sleeve, three O-shaped seal rings, a first rolling bearing, a second rolling bearing, a bearing gap ring, a transmission shaft, a shafting flange, a walking rolling bearing, and two bearing glands. The driving component includes a motor stator, a rotary transformer stator, a motor and rotary transformer integrated rotor, a rotor flange plate and a stator-fixing pressing block which are coaxially assembled. The vacuum sealing cover includes a sealing cover upper flange, a sealing cover, and a sealing cover lower flange. The shafting device couples a motor shaft to a load rigidly, thereby achieving a “zero-transmission” method and a “zero-leakage” sealed transmission of a shafting, and is particularly suitable for a power transmission of a vacuum robot in a high-vacuum environment.
    Type: Application
    Filed: November 19, 2013
    Publication date: January 21, 2016
    Applicant: SHANGHAI JIAO TONG UNIVERSITY
    Inventors: Bo Zhang, Pinkuan Liu, Xiacbo Zhu, Yujie Li