CVT (continuously variable transmission) with wobble wheel friction cone disc

By using a swaying wheel friction cone disk transmission system, the problems of wear, slippage, and breakage in steel belt continuously variable transmissions have been solved, achieving efficient continuously variable transmission and reliable mechanical energy transmission.

CN120991046APending Publication Date: 2025-11-21陈世昆
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Patent Information

Application Number
CN202410666884.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-05-21
Publication Date
2025-11-21

AI Technical Summary

Technical Problem

Existing steel belt driven continuously variable transmissions have fatal flaws such as wear, slippage, and breakage, which affect work efficiency and acceleration performance.

Method used

The system employs a swing wheel friction cone disk transmission system, which achieves continuously variable transmission by alternating compression and expansion of the swing wheel and the driving and driven cone disks, simulating the working principle of a CVT continuously variable transmission. The movement of the swing wheel is controlled by a hydraulic device.

Benefits of technology

It improves the efficiency of mechanical energy transmission, overcomes the shortcomings of steel belt drives, and achieves the smoothness and reliability of continuously variable transmission.

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Abstract

According to the continuously variable transmission, the wobble wheel rubs the surface of the conical disc to transmit energy, the edge of the wobble wheel rubs different points on the surfaces of the conical discs of the driving wheel and the driven wheel at the same time, so that the stress points of the disc surfaces change, and different torques are formed. And the stepless speed change effect is achieved by changing the rotating speeds of the driving wheel and the driven wheel. Swinging of the wobble wheel is completed by alternate extrusion and relaxation of conical discs of the two wheels, extrusion and relaxation of the conical discs are completed by a hydraulic device, and the working principle of the wobble wheel can refer to the hydraulic device of the CVT. The wobble wheel transmits mechanical energy, so that the working efficiency of the continuously variable transmission is improved, and the defect that a steel belt transmits the mechanical energy is overcome. The working principle of the wobble wheel friction cone disc continuously variable transmission is similar to the working principle of a global circulation CVT (continuously variable transmission), and the difference is that the wobble wheel edge friction cone disc replaces a steel belt friction cone disc, so that the mechanical efficiency is greatly improved.
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