The Design Of A New Kind Of Adjustable Transmission And Its Finite Element Analysis

With the development of the modern industry technology, continuouslyvariable transmission (Abbr. CVT), as a generally-used transmissionpattern, has been developed in many industrial fields, such as textileindustry, light industry, food industry, packing industry, auto, tooleven apparatus quickly and widely. Generally, according to transmissionmedium, CVT is classified as mechanical type, hydraulic type, andelectric type. Thereinto, mechanical CVT has more and more developedgradually domestically and abroad for its strongpoints. It is mainlycomposed of friction type, chain type, belt type, impulse type. Andfriction type of CVT can also be composed of directly transmission style,medium transmission style and planet transmission style.This paper introduces the study, design and provability of a new typeof multi-rub-disc friction transmission with the integrative knowledgeof tribology and finite element analysis. Besides it has thesecharacters, but also the improving of the whole case of its mechanics.For its design can be changed in size and model according the need, thepaper only takes one simple example to analyse and roughly introduces itsstructure design. Then the key parts in the transmission were finiteelement analysed in static and mode. The results show it has charactersof above transmissions and promoted mechanics and dynamics in movement.At the same time, the design also preventively improves on exisedshortages. At last, the paper tells the transmission's system of controland adjustment; also two ways of hand-adjustments and one electric wayis given. The paper also tells their each character. For the parts ofmechanics improvement, include transmission disks, rub-discs,bearings, they can be proved by ANSYS software for its mode state.The above design and analysis show that the project is doable and has more strongpoints than the existed friction transmissions; include it hasmore simple structure and higher credibility in motion. So the design canbe directly used in practice production and produce a series productions.At present, the design was in the process of check up in patent bureau.