Patents by Inventor Qinchuan LI

Qinchuan LI 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).

  • Two rotational and one translational degrees of freedom parallel manipulator with high rotational capability
    Patent number: 10539211
    Abstract: Disclosed is a two-turn-one-movement parallel mechanism with a large turning angle, comprising a machine frame, a movable platform, a first branch and two second branches, characterized in that the first branch comprises a machine frame turning pair, a first moving pair slider, a first moving pair guide rod and a first universal joint; each one of the second branches comprises a second moving pair guide rail, a second moving pair slider, a second universal joint, a connecting rod and a movable platform turning pair; in the two second branches, the axis of the first turning pair of each one of the second universal joints is superimposed with and parallel to the axis of the machine frame turning pair in the first branch, and the axis of each one of the movable platform turning pairs is parallel to the second turning axis of the first universal joint in the first branch.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: January 21, 2020
    Assignee: Zhejiang Sci-Tech University
    Inventors: Lingmin Xu, Qinchuan Li, Wei Ye
  • A TWO ROTATIONAL AND ONE TRANSLATIONAL DEGREES OF FREEDOM PARALLEL MANIPULATOR WITH HIGH ROTATIONAL CAPABILITY
    Publication number: 20180372196
    Abstract: Disclosed is a two-turn-one-movement parallel mechanism with a large turning angle, comprising a machine frame, a movable platform, a first branch and two second branches, characterized in that the first branch comprises a machine frame turning pair, a first moving pair slider, a first moving pair guide rod and a first universal joint; each one of the second branches comprises a second moving pair guide rail, a second moving pair slider, a second universal joint, a connecting rod and a movable platform turning pair; in the two second branches, the axis of the first turning pair of each one of the second universal joints is superimposed with and parallel to the axis of the machine frame turning pair in the first branch, and the axis of each one of the movable platform turning pairs is parallel to the second turning axis of the first universal joint in the first branch.
    Type: Application
    Filed: March 23, 2017
    Publication date: December 27, 2018
    Applicant: Zhejiang Sci-Tech University
    Inventors: Lingmin XU, Qinchuan LI, Wei YE