盘式制动器毕业设计本科

河北科技大学（工程教育实验班）本科毕业设计1摘要国内汽车市场迅速发展,然而随着汽车保有量的增加，带来的安全问题也越来越引起人们的注意，而制动系统则是汽车主动安全的重要系统之一。汽车制动系使行驶中的汽车减速或停车、使下坡行驶的汽车车速保持稳定以及使已停驶的汽车在原地(包括在斜坡上)驻留不动的机构。随着高速公路的迅速发展和车速的提高以及车流密度的日益增大，为了保证行车安全，汽车制动系的工作可靠性显得日益重要。也只有制动性能良好、制动系工作可靠的汽车，才能充分发挥其动力性能。本说明书主要介绍了雅力士轿车前制动器的设计。首先介绍了汽车制动系统的结构、分类，并通过对鼓式制动器和盘式制动器的结构及优缺点进行分析。最终确定方案采用液压双回路前盘后鼓式制动器。关键词：制动、盘式制动器、设计参数、制动性能。河北科技大学（工程教育实验班）本科毕业设计2ABSTRACTDomesticautomobilemarketdevelopingquickly,however,withtheincreaseoftheautopossession,bringsecurityismoreandmoreattention,andbrakesystemistheimportantcaractivesafetysystemone.Thebrakeisamovingcarslowdownorstop,makethedownhillcarsspeedstabilityandmakealreadyinplaceofthecartheyoffend(includinginslope)stayfixedinstitution.Withtherapiddevelopmentofthehighwayspeedandtheimprovementoftrafficdensityandincreasesdaybyday,inordertoguaranteesafety,carbrakesystemreliabilityofworkappearincreasinglyimportant.Alsoonlybrakeperformanceisgood,brakesystemreliablecarandfullyplayitsdynamicperformancethismanualmainlyintroducesthedesignofthecarbrakesystemyaris.Firstthispaperreviewedtheautomobilebrakingsystemstructure,classification,andthroughtothedrumbrakediscbrakeandthestructureandtheadvantagesanddisadvantagesareanalyzed.Ultimatelydeterminetheschemeadoptshydraulicdoublecircuitwithdiskanddrumbrakesystem.Keywords:brake、diskbrake、designparameters、brakingperformance河北科技大学（工程教育实验班）本科毕业设计3目录摘要..............................................................................................................................................1ABSTRACT......................................................................................................................................2第一章绪论.................................................................................................................................51.1制动系统概述.................................................................................................................51.1.1汽车制动系统的功用及其组成：.......................................................................51.1.2制动系的一般工作原理.......................................................................................51.1.3制动系的类型.......................................................................................................71.1.4汽车制动器设计要求...........................................................................................81.2汽车制动系统的研究现状及发展趋势....................................................................11第二章制动器的结构型式方案分析与选择...............................................................................132.1汽车制动器形式方案分析........................................................................................132.1.1盘式制动器.........................................................................................................132.1.2鼓式制动器.........................................................................................................172.2制动驱动机构的结构型式选择................................................................................182.2.1简单制动系.........................................................................................................182.2.2动力制动系.........................................................................................................182.2.3伺服制动系.........................................................................................................192.3制动主缸型式............................................................................................................202.4制动管路型式选择....................................................................................................212.4.1II型回路............................................................................................................222.4.2X型回路..........................................................................................................222.4.3其他类型回路.......................................................................................................232.5制动系统布置型式......................................................................................................23第三章制动系统主要参数及其设计计算...................................................................................243.1参考车型制动系相关主要参数数值........................................................................243.2同步附着系数分析....................................................................................................243.3法向力及制动力矩分配系数....................................................................................253.4制动强度和附着系数利用率....................................................................................283.5附着力的计算...............................................................................................................293.6制动器制动力及制动力矩的计算..............................................................................303.7前轮盘式制动器制动因数........................................................................................303.8前轮盘式制动器参数设计计算................................................................................313.9制动器磨损特性热容量及温升计算.............................................................