摘要制动主缸是制动系统的重要组成部分，制动主缸的制动效能、制动稳定性，直接影响到汽车行驶的安全性。因此，在确定其结构方案时提出几个备选方案，并通过对其进行比较和分析，确定出了最佳传动系统的设计方案。本次设计采用液动理论与机械设计理论对制动主缸进行设计，结构采用双管路液压制动主缸，包括缸体，缸体里设有前后两个主缸，每个主缸中设有油腔和活塞，以及与贮油箱连通的补偿孔和与活塞配套使用的密封圈。其中后主缸的油腔里还设有一个与后轮缸连通的油孔和回位弹簧，其特征是在前、后主缸之间还设有一个增压缸，该增压缸包括增压油腔和增压活塞，增压油腔与前油腔之间设有回油孔和限压油路，增压油腔里还设有一个与前轮缸连通的油孔和回位弹簧，前油腔里设有泄压油路。最后，经校核计算，结构满足要求。关键词：液动理论；制动效能；制动主缸IAbstractBrakingmaincylinderisanimportantpartofthecylinderbrakesystem,brakingperformanceandbrakingstabilitydirectlyaffectthesafetyofthecar;Therefore,initsstructureschemeneedstoproposedseveralalternativesandthroughcomparisonandanalysisofit,whichcandeterminetheoptimumtransmissionsystemdesignscheme.Thisdesignusesdynamictheoryandmechanismdesigntheoryofbrakemaincylinderstructuretodesign,whichalsousesdual-pipeshydraulicbrakemaincylinderincludingthecylinderblock,ithastwomaincylinder,everymaincylinderhasapistonandanoilstoragetank,aswellasconnectingwiththecompensationandthesupportingtheuseofpistonring.Amongthechamber'soilcylinder,thereisarearwheelcylinderconnectedwiththeoilholeandreturnspring,itscharacteristicisbetween,eachcylinder,thereisapressurizedcylinder,thepressurizedcylinderismadeupofpressurizationoilchamberpressurizationpiston,pressureandoilchamberandformeroilchamberbetweenoilandoilpressure,theoilchamberpressurizationhasafrontwheelcylinderconnectedwiththeoilholeandreturnspring,beforethecavitypressureoilwithoil.Finally,aftercheckingcomputation,thestructuresatisfytherequirement.Keywords:hydraulictheory,Brakingperformance,BrakingmaincylinderII目录摘要.......................................................................................................IABSTRACT..........................................................................................................II第1章绪论....................................................................................11.1项目研究的意义.......................................................11.2国内外发展情况.......................................................1第2章刹车泵总体设计...............................................52.1刹车泵概述......................................................................52.2刹车泵设计要求.......................................................52.3刹车泵方案的确定及其工作原理...62.4总体方案评价..............................................................7第3章制动系的主要参数及其选择.......103.1汽车参数的选择...................................................103.2汽车质量的确定...................................................103.3汽车最小制动力的确定.............................103.4前后制动器的制动力分配比例.......113.5各轮缸输入力的确定....................................123.5.1前轮盘式制动器的输入力的确定III.............................................................................................................................133.5.2后轮鼓式制动器轮缸输入力的计算..................................................................................................................13第4章制动主缸直径D的...
