轿车钢带无级变速器设计.doc

轿车钢带无级变速器设计+传动方案的设计+传动比设计+整车动力性计算 Metal Belt CVT Design for Automobile ABSTRACT The metal pushing CVT is a kind of new mechanical frictional type transmission. It provides excellent driving performances including powerful driving capacity, high efficiency, good smoothness, economy, etc. Particularly it is fittest to the spots where driving or medium power and continuously adjusting revolution is necessary. The process of development, basic structure, transmission principle, property characteristic and future trends of CVT are described for its uses of automobile. Metal belt CVT is the ideal vehicle transmission mode, is of national researchers and car companies focus review. The metal belt type continuously variable transmission history of the development, discusses the significance of their research, review of metal belt CVT and foreign research Study, the present situation of the metal belt continuously variable transmission electro-hydraulic control system control strategy trends. This article outlines the historical development of continuously variable transmission, classification, characteristics, and metal belt type continuously variable transmission basic structure, transmission diagram, working principle and the advantages and disadvantages. According to design requirements, conducted a drive in the design, transmission design and vehicle power than calculated. Metal pulley transmission control program design, the design of metal belt, clutch, intermediate reducer, reducer, planetary gear mechanism design and computational geometry. Every major sector of the transmission parameters of the design was checked, including three clutch, continuously variable transmission mechanism, planetary row, reducer, differential and so on .According to the design of each axis diagram, on the shaft and bearing to complete the strength calculation and lifetime calculations.六~维^论,文.网 Key words: strip infinitely variable CVT transmission design developing tendency 摘 要钢带无级变速器