Stepless high-efficiency change wheel

The invention relates to a stepless high-efficiency change wheel of a transmission mechanism and aims to develop a new generation of stepless automatic transmission. The change wheel is mainly characterized in that a driving shaft is provided with a fixed wheel and a move wheel; a spring, a control frame, a moon-shaped centrifuge block and a horn disk are arranged in the move wheel; the transmission mechanism provided by the invention has characteristics that when a vehicle is started, the diameter of a driving wheel becomes larger automatically, a driven wheel also obtains corresponding driven diameter change, the rotation rate of the driven wheel is changed, thereby realizing high-efficiency transferred power; the fuel oil economy of the vehicle is improved, and the stepless high-efficiency change wheel has obvious advantages in energy saving and emission reduction; the change wheel has the following five compensating functions in the use process of the vehicle: low speed compensation, light-load compensation, overspeed compensation, sliding compensation and acceleration compensation; the service life of the vehicle is greatly prolonged, vibration and noises are reduced; and the stepless high-efficiency change wheel has good practicality, adaptability, comfortableness and universality.