文档介绍：1 摘要作为汽车关键零部件之一的车桥系统也得到相应的发展,在一般的汽车结构中, 驱动桥包括主减速器(又称主传动器)、差速器、半轴及桥壳等部件。单级主减速器通常由主动齿轮和从动齿轮组成。在双级主减速器中,通常还要加一对圆柱齿轮或一组行星齿轮。在轮边减速器中则常采用普通平行轴式布置的斜齿圆柱齿轮传动或行星齿轮传动。主减速器采用的最广泛的是螺旋锥齿轮和双曲面齿轮。本设计首先参考类似驱动桥主减速器的结构对比优缺点,确定出总体设计方案; 然后确定主要部件的结构型式和主要设计参数;最后对主,从动锥齿轮,差速器圆锥行星齿轮,半轴齿轮,全浮式半轴进行校核以及对支承轴承进行了寿命校核。并对主减速器主动锥齿轮进行有限元分析。本设计采用传统的双曲面锥齿轮式单级主减速器作为 CA1090 的主减速器。关键词:CA1090 ;主减速器; 双曲面锥齿轮;轴承;行星齿轮;有限元分析 2 A BSTRACT One of the ponents ofa vehicle bridge system has also been a corresponding development of the automobile in the general structure, including the main gear axle (also known as the main drive device), differential, axle and axle housing and ponents. Usually single-stage final drive gear and driven ponents. In the two-stage final drive, usually also add a pair of spur gear ora group of ary gears. Reducer in the wheel is usually arranged mon parallel shaft helical gears or ary gears. Final drive is the most widely used spiral bevel gear and hypoid gear. The drive axle design similar to the first reference to the structure parative advantages and disadvantages of the main gear, determined the overall design scheme; and then identify the ponents of the structure type and the main design parameters; Finally, the driving and driven bevel gear, ary gear differential cone, axle gear, full floating axle bearings were checked and were on life support check. Bevel gear final drive and initiative to the finite element method. This design uses a traditional-style hypoid bevel final drive as the CA1090 single-stage main gear. Key word : CA1090; Main Gea r; Hypoid Gears; Bearing; ary Gear ; FEA 345678 目录摘要····················································································· Ⅰ Abstract ················································································ Ⅱ第1章绪论·····················································