本科毕业论文-反力式汽车制动试验台设计.doc

The Graduation Design for Bachelors Degree Design of Car Brake Reaction Test Bed Candidate：Gao Hang Specialty：Vehicle Engineering Class：B05-18 Supervisor：Lecturer. Xue Huijuan Heilongjiang Institute of Technology 2009-06·Harbin  摘 要 汽车制动性能的检验是机动车安全技术检验的重要内容之一，随着我国汽车保有量快速增长，汽车对环境的影响受到人们的普遍关注。汽车制动性能的好坏直接关系到人们的生命安全。因此有必要研究出快捷、准确地检测汽车制动性能的方法和工具。本论文的内容就是对汽车制动试验台的关键技术进行研究。首先论文对国内外汽车制动试验台的现状和今后发展方向进行了综述。通过对汽车制动过程的分析，提出检测汽车制动性能的方法，比较了各种检测方法的特点，分析了评价汽车性能的指标及国家标准。对汽车在制动试验台上的受力情况进行了分析，提出检测汽车制动性能的原理，分析了影响制动性能检测的因素。对汽车制动试验台总体结构进行了分析，提出选择试验台滚筒尺寸，转速及表面材料的方法，给出选择试验台电机、减速器等主要部件的依据。 关键词：汽车制动试验台；制动性能；检测；滚筒；反力式 ABSTRACT The testing of the automobile brake performance is one of important parts in Vehicle safety check.With the amount of the automobile increasing rapidly in our nation， the affect of automobile to the environment is concerned by more and more people. The brake performance of automobile has the relation with the safety of people. Therefore， it is necessary to find best methods and tools of testing automobile brake performances quickly and accurately. The paper is the research of key technology in automobile brake tester.Firstly，the paper give a brief introduction about present automobile brake tester and future tendency in the world.The paper analyzes the process of the braking of auto， and present the methods of testing brake performance， compares the advantages and disadvantages of various testing methods， discusses the criterions of assessing brakep erformances and national standards.It goes dynamic analysis of braking automobile on the tester，explains the principle of testing automobile brake performance，analyzes the main factors for brake testers.It analyses the total construction of the drum type automobile brake tester， gives the methods of choosing the sizes， speed，surfaces material of tester drums，as well as reasons of choosing tester motor，gearbox，and other main parts. Keywords： Automobile Brake Tester；Brake Performance；Testing；Platen；Reaction  目 录 Ⅰ