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

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.

Description

I. Technical Field

[0001] Continuously variable transmissions (CVTs) are an important component in the automotive industry. In this case, the CVT uses a rotating wheel to transmit kinetic energy through friction with a conical disc, thus replacing the steel belt transmission mode. II. Background Technology

[0002] The uneven edges of the oscillating wheel rub against the surface of the driving and driven wheel's conical discs. The two conical discs alternately squeeze and relax, driving the oscillating wheel to oscillate. The friction part at the edge of the oscillating wheel can be considered as a CVT continuously variable transmission. The steel belt is cast and wrapped around the wheel rim. This wheel-type energy transmission method completely overcomes the inherent drawbacks of steel belt transmission, such as steel belt wear, slippage, and breakage. III. Summary of the Invention

[0003] The oscillating wheel friction cone disc continuously variable transmission (CVT) uses an oscillating wheel instead of a steel belt to transmit mechanical energy, which improves working efficiency and overcomes the fatal shortcomings of steel belt drives, such as wear, slippage, breakage, and slow acceleration. The friction part at the edge of the oscillating wheel can be regarded as a circumference of the steel belt of the CVT, and its basic working principle is the same as that of a CVT.

[0004] IV. Explanation of the attached drawings

[0005] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 (1) Conical disc on the side of the driving wheel; (2) Conical disc on the side of the driven wheel; (3) Swing wheel; (4) Wheel edge friction edge; (5) Swing wheel connecting rod; (6) Swing wheel connecting rod shaft; (7) Fixed tripod.

[0006] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 If the axes of the driving and driven wheels are not on the same horizontal line, a fixed tripod and a fixed straight steel bar can be used to locate the connecting rod shaft of the swing wheel to ensure that the swing wheel swings normally. Working principle: The swing wheel swings within the grooves of the two conical discs of the driving wheel and the two conical discs of the driven wheel. The continuous change in the friction force points causes a change in the torque of the conical discs, which in turn changes the continuous change in the speed of the conical discs, resulting in continuously variable transmission. The swinging of the swing wheel is accomplished by the alternating compression and expansion of the driving and driven conical discs.

[0007] If the master and slave cone discs perform unilateral compression and relaxation, and the oscillating wheel experiences a small-scale displacement (perpendicular to the direction of its oscillation), it can be positioned at the axis of the oscillating wheel or at the axis between the oscillating wheel rod and the fixed frame. In this case, the shorter the oscillating wheel rod, the better. If the master and slave cone discs perform unilateral compression and relaxation, the displacement of the oscillating wheel does not need to be considered. The compression and relaxation of the master and slave cone discs are accomplished by a hydraulic system, which can be referenced from the hydraulic principle of a CVT continuously variable transmission.

Claims

1. A continuously variable transmission (CVT) that transmits mechanical energy between the driving wheel and the driven wheel via a oscillating wheel and a friction cone disc.

2. The uneven edges of the oscillating wheel rub against the surfaces of the main and secondary cone discs. During the oscillation, the friction force point changes continuously, causing the torque of the two cone discs to change continuously, and the speed to change continuously, thus forming a continuously variable transmission.

3. The uneven edges of the swing wheel can be seen as the steel belt of the most widely used VCT continuously variable transmission, which is cast around the wheel. The apex angle of the extension line on both sides of the wheel is slightly smaller than the included angle of the two cone discs. This allows the swing wheel to swing normally when the two cone discs alternately squeeze and relax. The squeezing and relaxing of the cone discs is completed by a hydraulic device, similar to the hydraulic part of a CVT continuously variable transmission.

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