公开(公告)号：US11927235B2

公开(公告)日：2024-03-12

申请号：US18135028

申请日：2023-04-14

申请人： Chongqing University ,  Shanghai University

发明人： Huayan Pu ,  Zhi Sun ,  Jun Luo ,  Jinglei Zhao ,  Jin Yi ,  Yi Qin ,  Shujin Yuan

IPC分类号： F16F15/00

CPC分类号： F16F15/002 ,  F16F15/005 ,  F16F2228/066

摘要： Disclosed is an active control Stewart vibration damping platform, including a load-bearing platform, a base, and six telescopic rods. Each telescopic rod includes a driving motor, a rotating shaft, a sleeve, and a moving rod. One end, away from the driving motor, of the rotating shaft is provided with a cylindrical cavity, one end of the moving rod penetrates through the cylindrical cavity, and the sleeve is sleeved outside the rotating shaft. The rotating shaft is in running fit with the sleeve through a first bearing, and the moving rod is in sliding fit with the sleeve through a second bearing. The moving rod and the rotating shaft are respectively provided with a spiral permanent magnet. The spiral permanent magnet on the rotating shaft can drive the moving rod to move in an axial direction of the rotating shaft through the spiral permanent magnet on the moving rod when rotating.

公开(公告)号：US20230332666A1

公开(公告)日：2023-10-19

申请号：US18135028

申请日：2023-04-14

申请人： Chongqing University ,  Shanghai University

发明人： Huayan Pu ,  Zhi Sun ,  Jun Luo ,  Jinglei Zhao ,  Jin Yi ,  Yi Qin ,  Shujin Yuan

IPC分类号： F16F15/00

CPC分类号： F16F15/002 ,  F16F15/005 ,  F16F2228/066

摘要： Disclosed is an active control Stewart vibration damping platform, including a load-bearing platform, a base, and six telescopic rods. Each telescopic rod includes a driving motor, a rotating shall, a sleeve, and a moving rod. One end, away from the driving motor, of the rotating shaft is provided with a cylindrical cavity, one end of the moving rod penetrates through the cylindrical cavity, and the sleeve is sleeved outside the rotating shall. The rotating shaft is in running lit with the sleeve through a first bearing, and the moving rod is in sliding fit with the sleeve through a second bearing. The moving rod and the rotating shaft are respectively provided with a spiral permanent magnet. The spiral permanent magnet on the rotating shaft can drive the moving rod to move in an axial direction of the rotating shaft through the spiral permanent magnet on the moving rod when rotating.

公开(公告)号：US11573101B2

公开(公告)日：2023-02-07

申请号：US17733147

申请日：2022-04-29

申请人： CHONGQING UNIVERSITY

发明人： Huayan Pu ,  Yan Jing ,  Jinglei Zhao ,  Jun Luo ,  Yi Qin ,  Zhijiang Xie ,  Jie Ma

IPC分类号： G01D5/20

摘要： Disclosed is a quasi-zero stiffness absolute displacement sensor based on electromagnetic positive stiffness, and relates to the technical field of vibration measurement. The quasi-zero stiffness absolute displacement sensor comprises an eddy current displacement sensor unit, a negative stiffness unit, an intermediate connector, a positive stiffness unit, a bottom shell and a motion axis. The damping of the mechanism can be effectively reduced, the service life of the system is prolonged, and the mechanism size is reduced. By adjusting the number of layers of permanent magnets and coils in the electromagnetic positive stiffness unit and the electromagnetic negative stiffness unit and controlling the magnitude of current in the coils, electromagnetic force between the permanent magnets and the electromagnetic coils can be changed, the magnitude of positive stiffness and the magnitude of negative stiffness are adjusted, and control over the stiffness of the whole system is achieved.

公开(公告)号：US20230045158A1

公开(公告)日：2023-02-09

申请号：US17535747

申请日：2021-11-26

申请人： Chongqing University ,  Shanghai University

发明人： Huayan Pu ,  Yan Jing ,  Jinglei Zhao ,  Jun Luo ,  Yi Qin ,  Zhijiang Xie ,  Jie Ma

IPC分类号： G01H11/02 ,  H02N15/00

摘要： A magnetic suspension type sensing system for space full-degree-of-freedom absolute poses is provided. The system includes a reference platform, multiple quasi-zero stiffness supporting legs and a platform to be tested. The reference platform and the platform to be tested are connected in a spherical hinge mode through the multiple quasi-zero stiffness supporting legs. Each of the multiple quasi-zero stiffness supporting legs includes a lower end spherical hinge, a lower end cover, a positive stiffness unit, a negative stiffness unit, a shaft, a lower end shell, an upper end shell and an upper end spherical hinge.

公开(公告)号：US11733179B2

公开(公告)日：2023-08-22

申请号：US17085723

申请日：2020-10-30

申请人： ChongQing University

发明人： Yi Qin ,  Dejun Xi ,  Caichao Zhu ,  Sheng Xiang

IPC分类号： G01N21/952 ,  G06T7/00 ,  G06V10/22 ,  G06V10/143 ,  G06V20/10 ,  G06V10/70 ,  G06V10/82 ,  H04N5/33

CPC分类号： G01N21/952 ,  G06T7/0004 ,  G06V10/143 ,  G06V10/22 ,  G06V10/70 ,  G06V10/82 ,  G06V20/10 ,  G06T2207/10012 ,  G06T2207/20081 ,  G06T2207/30164 ,  G06V2201/07 ,  H04N5/33

摘要： The present invention belongs to the field of computer visual detection, and relates to a binocular automatic gear pitting detection device based on deep learning, comprising a gearbox system, a data acquisition system, an image processing system, a tooth surface positioning system, a control system and a motor, wherein the gearbox is used for installing paired meshing gears; the data acquisition system is arranged on the side wall of the gearbox, and a CCD industrial camera is arranged on the data acquisition system; the image processing system completes quantitative evaluation of gear pitting and target detection based on a deep learning technology; both ends of the tooth surface positioning system are respectively connected with the motor and the gearbox, and the torque of the motor is transmitted to an input shaft of the gearbox. The device can determine the optimal installation base points of the data acquisition system according to the characteristics of the meshing gears, and find effective detection areas in combination with the light source and camera arrangement solutions, thereby effectively saving the installation space of the detection device and adapting to the operating characteristics of the meshing gears.

公开(公告)号：US11692607B2

公开(公告)日：2023-07-04

申请号：US17535747

申请日：2021-11-26

申请人： Chongqing University ,  Shanghai University

发明人： Huayan Pu ,  Yan Jing ,  Jinglei Zhao ,  Jun Luo ,  Yi Qin ,  Zhijiang Xie ,  Jie Ma

IPC分类号： F16F15/00 ,  F16F15/03 ,  H02N15/00 ,  G01H11/02

CPC分类号： F16F15/002 ,  F16F15/03 ,  G01H11/02 ,  H02N15/00 ,  F16F2230/14

摘要： A magnetic suspension type sensing system for space full-degree-of-freedom absolute poses is provided. The system includes a reference platform, multiple quasi-zero stiffness supporting legs and a platform to be tested. The reference platform and the platform to be tested are connected in a spherical hinge mode through the multiple quasi-zero stiffness supporting legs. Each of the multiple quasi-zero stiffness supporting legs includes a lower end spherical hinge, a lower end cover, a positive stiffness unit, a negative stiffness unit, a shaft, a lower end shell, an upper end shell and an upper end spherical hinge.