Three-degree-of-freedom gear continuously variable transmission device

Abstract

The invention aims to provide a three-degree-of-freedom gear continuously variable transmission (CVT) device technology. The technology device is sequentially provided with a gear torque transmissiontechnology with three degrees of freedom on a central axis from front to back, wherein a first degree of freedom is formed by a rotary wheel plate arranged on an input shaft; an acceleration gear anda reduction gear are arranged on the rotary wheel plate; a second degree of freedom is formed by a planetary gear structure; a center gear is arranged on a planetary gear; the planetary gear is arranged on an output plate; a third degree of freedom is formed by a rotary sleeve; an acceleration gear inner gear ring is arranged at the front end of the rotary sleeve; and a planetary gear inner gear ring is arranged at the back end of the rotary sleeve. The technology devices in three degrees of freedom are matched according to a torque force change; according to the CVT, changed power and torqueof an engine and various different driving resistance of vehicle driving can be constantly matched perfectly; and the technology device can be widely applicable to the relevant fields such as motorcycles, buses, trucks, national defense, tanks and mechanical manufacturing.

Description

technical field [0001] The invention relates to the technical field of continuously variable transmission (CVT), and relates to a 3-degree-of-freedom all-gear continuously variable transmission device. Background technique [0002] The speed and change of the car's driving are determined by the two characteristics of the engine's stepless speed and the car's own stepless driving, which requires the car's transmission to achieve a continuously variable transmission ratio, (continuously vatable Transmission) referred to as "CVT" technology. Today, nearly 300 years after the birth of automobiles, automobiles have not yet used satisfactory continuously variable transmissions. Medium-sized and heavy-duty vehicles use gear transmissions, which are multi-stage 6-speed-24-speed transmissions. The existing continuously variable transmissions ( CVT) technology can only be used in a small power range, and high-power cars cannot be used. This is the helplessness and shortcoming of high-...

AI Technical Summary

Problems solved by technology

Today, nearly 300 years after the birth of automobiles, automobiles have not yet used satisfactory continuously variable transmissions. Medium-sized and heavy-duty vehicles use gear transmissions, which are multi-stage 6-speed-24-speed transmissions. The existing continuously variable transmissions ( CVT) technology can only be used in a small power range, and high-power cars cannot be used. This is the helplessness and shortcoming of high-power cars. Although the world's major car manufacturers have shown great concern and investment A lot of financial resources and experts have carried out research and development, and attached great importance to the practical process of (CVT) in the automotive field, but so far there are still no good results and scientific research projects. Ultimate goal, there are three kinds of automobile transmissions that are commonly used at present. "1" is the steel plate and steel belt type continuously variable transmission (CVT) technology represented by Japan. Because it can only be applied in a small power range, most of them are installed in small vehicles. In general, large passenger cars and heavy trucks cannot be popularized and applied. In "2", the stepped automatic transmission (AT) technology represented by the United States and Europe, because the automatic transmission transmits small power, low transmission efficiency, complex structure, and high cost, most of them are installed in high-speed Class small vehicles, large, medium and heavy vehicles cannot be used. "3" The most widely used high-power heavy-duty trucks are traditional gear transmissions. The main position of heavy-duty vehicles, the disadvantage is that although the power of the engine increases, the tonnage increases, the transmission develops from 6-speed to 24-speed, and the transmission develops from two-axis to three-axis

The cost is increased, and at the same time, the driver must change the working gear frequently according to the driving speed of the vehicle and the rotating speed of the engine at any time, so as to ensure that the engine and the driving speed of the vehicle are perfectly matched. driving experience

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