公开(公告)号：US10465787B2

公开(公告)日：2019-11-05

申请号：US15527015

申请日：2015-12-31

Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY

Inventor： Yangzhi Chen ,  Huai Huang ,  Yueling Lv

IPC: F16H55/08 ,  F16H35/02 ,  F16H3/42 ,  F16H57/00 ,  F16H55/10

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.