The Kinematic Analysis of Heart-Shaped Gear Continuously Variable Transmission

2010 ◽  
Vol 37-38 ◽  
pp. 1489-1492
Author(s):  
Chuan Qiong Sun ◽  
Guo Xing Sun ◽  
Ai Hua Ren ◽  
Yong De Liu

Based on the research of non-circular gear Continuously Variable Transmission (CVT), firstly the working principle of the heart-shaped gear is introduced, and then the kinematic characteristics are analyzed, lastly the feature of the heart-shaped gear CVT is obtained.

2013 ◽  
Vol 19 (6) ◽  
pp. 1705-1708 ◽  
Author(s):  
Jiandong Sun ◽  
E. Tian ◽  
Hong Lei ◽  
Ziping Liu ◽  
Wenyu Fu

2011 ◽  
Vol 328-330 ◽  
pp. 360-363
Author(s):  
Ai Hua Ren ◽  
Guo Xing Sun ◽  
Chuan Qiong Sun

Though spatial cam has been widely used in various fields of machinery and equipment ,but it is seldom used in continuously variable transmission situation. So firstly the working principle of spatial cam for CVT is introduced, and then equations of the pitch curve and cam contour are derived .In order to get the required dimensions and parameters of spatial cam during three dimensional modeling, program is developed with programming software Mathcad and the corresponding programming flow chart is listed out. And the running results of the Mathcad program and features of spatial cam in Pro/E are correlated to realize solid modeling, at last an example is given to demonstrate the feasibility and flexiblity of this method.


2018 ◽  
Vol 10 (1) ◽  
pp. 168781401775196
Author(s):  
Suifan Chen ◽  
Zhifeng Dong

In order to solve the oversize problem of continuously variable transmission, a rod gear pulse continuously variable transmission is designed. The kinematic mathematical models of key components are established by the matrix method and are simulated by MATLAB in a single phase, based on the analysis of basic structure and working principle of transmission. Also, the length requirements of each rod are studied, and the effect of three adjustment manners on the output-speed is simulated in the single phase. Furthermore, the simulations of the movement law of annular gear are achieved on two conditions of both different phases and different eccentricities on 8-phase. The results show that the manner of adjusting the eccentricity of eccentric wheel is the preferential selection of out-speed regulating method, and 8-phase is an optimal phase of transmission; meanwhile, for the rod gear pulse continuously variable transmission, the variable range of transmission ratio is wider and the pulsation rate is far less than the other traditional continuously variable transmissions.


2014 ◽  
Vol 986-987 ◽  
pp. 1315-1318
Author(s):  
Shun Min Wang ◽  
Zhuo Li ◽  
Xin Yu Wang ◽  
Xi Chao Li

This paper describes a new genre of Toroidal-CVT system, called the Sphere-Toroidal Continuously Variable Transmission (STCVT), which is derived from the half-toroidal traction drive (TCVT) and introduces its structure and working principle. The torque transfers from the input shaft to the cross-axle universal shaft coupling connected with the driven shaft. By discussing the difference between the torque-transfer, the paper will show the possibility of the application in the vehicle. To conclude, the system has the potential to implement infinite extension for the CVT theoretically.


1994 ◽  
Vol 29 (1) ◽  
pp. 149-167 ◽  
Author(s):  
Clarence W. De Silva ◽  
Martin Schultz ◽  
Edward Dolejsi

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