3466_转向从动桥总成总体和桥架部分设计.docx

转向从动桥总成总体和桥架部分设计摘要：本设计为载重汽车的转向桥，此转向桥需要适应不同路况，不同速度下的稳定行驶，因此对前桥的要求也越来越高。在汽车设计、制造、因此应该本着既能有足够的承载能力，又能实现耐用经济的思想进行方案的选择，为了降低生产成本，又在结构上满足要求的情况下应尽量简单。通过设计：1、保证有足够的强度：以保证可靠的承受车轮与车架之间的作用力。2、保证有足够的刚度：以使车轮定位参数不变。3、保证转向轮有正确的定位角度：以使转向轮运动稳定，操纵轻便并减轻轮胎的磨损。4、转向桥的质量应尽可能小：以减少非簧上质量，提高汽车行驶平顺性。通过分析工作原理设计转向节、前轴、主销等零件的尺寸，使各个零部件的强度满足校核，并运用绘图软件绘制装配图和零件图。关键词：转向桥；定位参数；转向节；前轴；主销Steering Driven Axle Assembly and Overall Bridge DesignAbstract:This design is Steering Axle for heavy trucks. The design is need to adapt to different road and under different speeds,so the stability of front axle higher requirements. In car design, manufacture, and should be based on both have enough carrying capacity, and can achieve durable economic thoughts options, in order to reduce the production cost, and meets the requirements in the structure of situations should as far as possible simple.By design:1.To ensure adequate strength: in order to ensure affordable and reliable force between wheel and frame.2.Ensure adequate rigidity: in order to change the wheel alignment parameters.3.To ensure the correct positioning of steering wheel angle: to make the steering wheel movement and stability, manipulating light and reduce tire wear.4.The steering axle of quality should be as small as possible: to reduce the non-sprung mass, improve vehicle ride comfort.Works by analyzing the design of steering knuckle, front axle,kingpin and other parts of?the size, so that the strength of the various components to meet the check,and use other mapping software caxa assembly drawing and parts are drawing. Key words:steeringaxle, positional parameters, knuckle, front axle, kingpin目录第1章概述11.1 本课题的背景及目的11.2 转向从动桥工作原理11.3 设计参数要求11.4 转向从动桥现状21.5 本章小结2第2章转向从动桥结构设计32.1 转向从动桥的设计方案选择32.2 转向从动桥的组成部分42.3 转向从动桥各参数对汽车稳定性的影响62.4 本章小结9第3章转向从动桥的设计计算103.1 转向从动桥主要参数选择103.2 制动力矩的计算113.3 前轮转角的计算123.4 转向阻力矩的计算143.5 本章小结14第4章前梁设计154.1 前梁受力分析154.2 前梁尺寸选择164.3 前梁应力计算164.3.1 垂直载荷下的应力计算174.3.2在制动工况下的前梁应力计算184.3.3在侧滑工况下的前梁应力计算204.4 前梁材料选择224.5 前梁的工艺分析234.6 本章小