毕业论文《汽车机动车发动机翻转台架的设计 》 .doc

毕业设计报告论文 手摇式发动机翻转架设计 所 属 系 机械工程系 专 业 机械设计制造及其自动化 学 号 姓 名 指导教师 起讫日期 设计地点 手摇式发动机翻转台架设计 摘 要 汽车发动机翻转架是一种汽车修理和保养单位常用的设备，广泛应用于轿车等小型车的维修和保养。目前，全国生产翻转架的厂家较多，生产的翻转架的形式也比较繁多，本文介绍了发动机翻转架国内外现状以及发展趋势，在确定了所要设计的翻转架方案之后，即针对翻转架的结构及其特点要求进行了设计与说明，同时对翻转架设计过程中所涉及到的工艺性问题进行补充说明。然后对立柱的强刚度和托臂的强度进行了校核验算。 本课题所设计的是蜗杆传动 360°任意角翻转锁止的发动机翻转架。它的特点是：1、性能可靠，操作方便；2、结构简单；3、拖脚的最低位置低，使得车辆的底盘可以比较低，对各种车辆的适应性扩大了；4、利用蜗杆传动可 360°任意角度翻转锁止；5、价格低廉，拥有的市场份额较大。关键词：普通式；结构特点；机械结构设计；蜗杆传动 Frame design of automotive engine flip Abstract The car engine flip frame is an automobile repair and maintenance units commonly used equipment widely used in the repair and maintenance of cars and other small cars. Currentlymore manufacturers of production flip flip frame in the form of production is also more diverse this paper introduces the domestic and international status and development trend of engine flipflip scheme requirements for the design and description flip the frame structure and characteristics of supplement flip the aircraft design process involved in the process. Checking checking and then on a column of strong stiffness and the strength of the corbel. This topic is a worm drive 360 ° flip lock the engine at any angle flip racks. It is characterized by: 1.reliable easy to operate 2.the structure is simple 3.the dragging feet of the lowest low making the vehicle chassis can be relatively low and adaptability to a variety of vehicles to expand 4.the worm drive can be 360° at any angle flip lock 5.low prices have a larger market share. Keywords: Common typeStructural characteristicsMechanical and structural designWorm drive 目 录摘 要 .................................................................................................................................................................... IIAbstract ...............................................................................................................................................................III第一章 绪论 ..................................................