Patents by Inventor Yangzhi Chen

Yangzhi Chen 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: 11149821
    Abstract: The present invention relates to a line gear mechanism with variable-angle transmission, which consists of a line gear pair having intersecting shafts which includes a driving line gear and a driven line gear. The driving line gear and the driven line gear are each composed of a wheel body and a line tooth. Contact curves of the driving line gear and the driven line gear mesh according to a pair of space conjugate curves. One or more line teeth are provided on the driving line gear. The line tooth on the driven line gear is a line tooth that has a property of variable-angle transmission. During transmission, the mechanism may adjust a transmission angle of the line gear pair having the intersecting shafts, thus causing meshing points to form on different contact curves while a transmission ratio remains unchanged and the transmission is stable.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: October 19, 2021
    Assignee: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
    Inventors: Yangzhi Chen, Chao He, Yueling Lv
  • Publication number: 20200284321
    Abstract: The present invention relates to a line gear mechanism with variable-angle transmission, which consists of a line gear pair having intersecting shafts which includes a driving line gear and a driven line gear. The driving line gear and the driven line gear are each composed of a wheel body and a line tooth. Contact curves of the driving line gear and the driven line gear mesh according to a pair of space conjugate curves. One or more line teeth are provided on the driving line gear. The line tooth on the driven line gear is a line tooth that has a property of variable-angle transmission. During transmission, the mechanism may adjust a transmission angle of the line gear pair having the intersecting shafts, thus causing meshing points to form on different contact curves while a transmission ratio remains unchanged and the transmission is stable.
    Type: Application
    Filed: October 31, 2018
    Publication date: September 10, 2020
    Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
    Inventors: Yangzhi CHEN, Chao HE, Yueling LV
  • Patent number: 10677317
    Abstract: The present invention discloses a line gear mechanism for rotation-movement conversion, comprising a driving line gear (1) and a driven line gear (2). A stagger angle between an axis of the driving line gear and an axis of the driven line gear is any value from 0° to 180°. By a point contact meshing between a driving contact curve of a driving line tooth on the driving line gear (1) and a driven contact curve of a driven line tooth on the driven line gear (2), and by utilizing rotation of the driving line gear (1), it achieves that the driven line gear (2) rotates while moving smoothly. The line gear mechanism for rotation-movement conversion is simple in structure, easy to design, can achieve small displacement of movement, and is especially suitable for the conversion of small machinery from rotation to linear motion.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: June 9, 2020
    Assignee: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
    Inventors: Yangzhi Chen, Yueling Lv
  • Patent number: 10550914
    Abstract: The present invention relates to a concave-convex arc line gear mechanism for parallel shaft transmission, which comprises a driving line gear and a driven line gear, axes of the driving line gear and the driven line gear being parallel to each other to form a transmission pair.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: February 4, 2020
    Assignee: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
    Inventors: Yangzhi Chen, Li Yao
  • Patent number: 10465787
    Abstract: The present invention is a variable-ratio line gear mechanism. The mechanism forms a transmission pair consisting of a driving line gear and a driven line gear, of which axes intersect at an arbitrary angle. Transmission is generated by point contact meshing movement of line teeth between the driving line gear and the driven line gear. A contact curve of the line tooth is designed in accordance with space conjugate curve meshing theory, and the designing equation is divided into an equal transmission ratio part and a variable transmission ratio part. The equal transmission ratio part provides a uniform transmission, and the variable transmission ratio part makes the transmission ratio smoothly transit. The line gear mechanism is able to provide periodically transmission with variable transmission ratio, to provide a plurality of transmission ratios during a movement period of the driven line gear, and to enable smooth transitions between respective transmission ratios in accordance with movement rules.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: November 5, 2019
    Assignee: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
    Inventors: Yangzhi Chen, Huai Huang, Yueling Lv
  • Publication number: 20190211901
    Abstract: The present invention discloses a line gear mechanism for rotation-movement conversion, comprising a driving line gear (1) and a driven line gear (2). A stagger angle between an axis of the driving line gear and an axis of the driven line gear is any value from 0° to 180°. By a point contact meshing between a driving contact curve of a driving line tooth on the driving line gear (1) and a driven contact curve of a driven line tooth on the driven line gear (2), and by utilizing rotation of the driving line gear (1), it achieves that the driven line gear (2) rotates while moving smoothly. The line gear mechanism for rotation-movement conversion is simple in structure, easy to design, can achieve small displacement of movement, and is especially suitable for the conversion of small machinery from rotation to linear motion.
    Type: Application
    Filed: December 19, 2016
    Publication date: July 11, 2019
    Inventors: Yangzhi Chen, Yueling LV
  • Publication number: 20180187750
    Abstract: The present invention relates to a concave-convex arc line gear mechanism for parallel shaft transmission, which comprises a driving line gear and a driven line gear, axes of the driving line gear and the driven line gear being parallel to each other to form a transmission pair. The driving line gear is consisted of convex teeth and a driving wheel body, a surface of the convex tooth comprising a pair of convex arc-shaped tooth flanks and a tooth top surface The driven line gear is consisted of concave teeth and a driven wheel body, a surface of the concave tooth comprising a pair of concave arc-shaped tooth flanks and a tooth bottom surface A meshing track of the transmission pair during transmission is a space curve. One arc-shaped tooth flank of the driving line gear and one arc-shaped tooth flank of the driven line gear present a point contact of convex arc and concave arc at a meshing point. Tooth shapes of the driving line gear and the driven line gear are interchangeable, i.e.
    Type: Application
    Filed: December 31, 2015
    Publication date: July 5, 2018
    Inventors: Yangzhi CHEN, Li YAO
  • Publication number: 20170343095
    Abstract: The present invention is a variable-ratio line gear mechanism. The mechanism forms a transmission pair consisting of a driving line gear and a driven line gear, of which axes intersect at an arbitrary angle. Transmission is generated by point contact meshing movement of line teeth between the driving line gear and the driven line gear. A contact curve of the line tooth is designed in accordance with space conjugate curve meshing theory, and the designing equation is divided into an equal transmission ratio part and a variable transmission ratio part. The equal transmission ratio part provides a uniform transmission, and the variable transmission ratio part makes the transmission ratio smoothly transit. The line gear mechanism is able to provide periodically transmission with variable transmission ratio, to provide a plurality of transmission ratios during a movement period of the driven line gear, and to enable smooth transitions between respective transmission ratios in accordance with movement rules.
    Type: Application
    Filed: December 31, 2015
    Publication date: November 30, 2017
    Inventors: Yangzhi CHEN, Huai HUANG, Yueling LV
  • Patent number: 8789438
    Abstract: A space curve mesh driving pair and a polyhedral space curve mesh transmission are disclosed. Said space curve mesh driving pair consists of a driving wheel and a driven wheel. Axes of the driving wheel and the driven wheel are intersected at an angle of 0°˜180°, and power transmission is realized by continuous mesh between the driving tines and the driven tines; a number of driving tines are provided on said driving wheel, and a number of driven tines are provided on the driven wheel; the driving tines are uniformly arranged on an end face of a cylinder of the driving wheel, and the driven tines are uniformly arranged on the circumference of a cylindrical surface of the driven wheel. Said polyhedral space curve mesh transmission consists of an above-mentioned space curve mesh driving pair. Motion is input from an input end, and is passed through a number of pace curve mesh driving pairs to realize the speed change, then is output from one or more output ends.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: July 29, 2014
    Assignee: South China University of Technology
    Inventors: Yangzhi Chen, Zhen Chen, Jiang Ding
  • Publication number: 20130145876
    Abstract: A space curve mesh driving pair and a polyhedral space curve mesh transmission are disclosed. Said space curve mesh driving pair consists of a driving wheel and a driven wheel. Axes of the driving wheel and the driven wheel are intersected at an angle of 0°˜180°, and power transmission is realized by continuous mesh between the driving tines and the driven tines; a number of driving tines are provided on said driving wheel, and a number of driven tines are provided on the driven wheel; the driving tines are uniformly arranged on an end face of a cylinder of the driving wheel, and the driven tines are uniformly arranged on the circumference of a cylindrical surface of the driven wheel. Said polyhedral space curve mesh transmission consists of an above-mentioned space curve mesh driving pair. Motion is input from an input end, and is passed through a number of pace curve mesh driving pairs to realize the speed change, then is output from one or more output ends.
    Type: Application
    Filed: November 1, 2010
    Publication date: June 13, 2013
    Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
    Inventors: Yangzhi Chen, Zhen Chen, Jiang Ding