平板式清障车设计.doc

摘要 清障车是指装有各种道理运输抢险装备的专业汽车。汽车在公路上行驶，不可避免的会发生一些事故，清障车的任务就是在事故发生后用最快的速度到达事故现场并在第一时间把故障车或者事故车脱离现场，确保交通道路能够畅通。道路清障车在作业时应十分注意对事故车辆的保护，特别对一些新车、高档轿车，应必免因为作业中捆绑、挤压以及运输对事故车辆机件及外观上的进一步的损伤。平板式清障车作为专用清障车的一种，它利用附加的液压绞盘、液压举升装置、平板等能够对事故车辆施行装载运输，实现对事故车辆的快速处理。 在查阅大量相关资料的基础上，深入分析了平板式清障汽车设计的总体方案，对底盘、升降机构、液压系统、取力器、液压绞盘以及相关附件等进行了合理设计与选择。最终完成平板式清障车的设计。 关键词：清障车设计；平板；取力器；升降机构；液压系统 Abstract Wrecker is the truth transport emergency equipment fitted with a variety of professional automotive. Cars on the highway, will inevitably be some accidents, wrecker task is after the accident the fastest to reach the scene of the accident and the first time the fault car accident or car from the scene to ensure that road transport can smooth. Wrecker in the job should pay great attention to the protection of vehicle accidents, especially for some of the new cars, luxury cars, will be bundled free because the job, squeezing further damage and transportation vehicle accident on mechanical and appearance. Flatbed wrecker wrecker as a special, which uses additional hydraulic winch, hydraulic lifting device, tablet, etc. can be loaded on the implementation of the transport vehicle accident, fast handling of the accident vehicles. Access to relevant information on the basis of a large, in-depth analysis of the flatbed wrecker car design overall program of chassis, lifting mechanism, hydraulic system, PTO, hydraulic winches and related accessories for a reasonable design and selection. Flatbed wrecker to finalize the design. Keyword: Wrecker design; flat; take power; lifting mechanism; hydraulic system 目录 1 绪论 1 1.1 研究本设计的目的和意义 1 1.2 道路清障车结构方案分析 1 2 清障车底盘结构设计计算 3 2.1 设计依据 3 2.1.1 清障车作业工况简介 3 2.1.2 清障车设计参考标准 3 2.2 整车结构与主要技术参数 4 2.2.1 整车总体设计参数 4 2.2.2 主要技术参数 4 2.3 底盘的选型 4 2.4 动力匹配计算 5 2.4.1 动力匹配概述 5 2.4.2 发动机选择 6 2.5 离合器设计计算 7 2.5.1 离合器主要参数的选择 7 2.5.2 膜片弹簧基本参数的选择 8 2.5.3 扭转减振器的设计 9 2.6 变速箱的选型 10 2.6.1 变速器最小传动比 10 2.6.2 确定最大传动比 10 2.6.3 档位数确定 11 2.7 万向传动轴设计计算 12 2.7.1 万向节选择 12 2.7.2 传动轴结构分析与计算 13 2.8 驱动桥设计 14 2.8.