Synthesis of Toothed Continuously Variable Transmission (CVT)

Continuously variable transmission contains the closed gear differential and the controlled device. It is proved that closed gear differential in itself carry out a function of a controlling device. The elementary gear (toothed) continuously variable transmission has form of the gear closed differential with two degrees of freedom. The gear differential with the closed contour of toothed wheels creates additional constraint and supports a transition regime of motion from a start-up to bi-mobile regime with independent stepless regulating. The equations of interconnection of power, kinematic and geometrical parameters of transmission in statics, kinematics and dynamics are searched out. The synthesis of transmission consists in determination of teeth wheels numbers on a condition of overcoming the given maximum moment of resistance. The design of the gear regulated transmission is presented. Design of gear continuously variable transmission is presented. The found regularities allow synthesizing gear continuously variable transmission with constant engagement of toothed wheels on the given operational parameters of motion.