北京建筑工程学院本科生毕业设计（论文）PAGEIV摘要制动系统是汽车中最重要的系统之一。因为随着高速公路的不断发展，汽车的车速将越来越高，对制动系的工作可靠性要求日益提高,制动系工作可靠的汽车能保证行驶的安全性。由此可见，本次制动系统设计具有实际意义。本次设计主要是对轻型货车制动系统结构进行分析的基础上，根据对轻型货车制动系统的要求，设计出合理的符合国家标准和行业标准的制动系统。首先制动系统设计是根据整车主要参数和相关车型，制定出制动系统的结构方案，其次设计计算确定前、后鼓式制动器、制动主缸的主要尺寸和结构形式等。最后利用计算机辅助设计绘制出了前、后制动器装配图、制动主缸装配图、制动管路布置图。最终对设计出的制动系统的各项指标进行评价分析。另外在设计的同时考虑了其结构简单、工作可靠、成本低等因素。结果表明设计出的制动系统是合理的、符合国家标准的。关键词：轻型货车；制动；鼓式制动器；制动主缸；液压系统.AbstractBrakingsystemisoneofthemostimportantsystemintheautomotive.becauseofthecontinuousdevelopmentwiththehighway.Thecarwillbecomemoreandmorehigh-speed,brakingsystemontheworkoftheincreasingreliabilityrequirements,Brakeworkofareliablecar,guaranteethesafetyoftravelling,Thisshowsthat,Thebrakingsystemdesignofpracticalsignificance.Thebrakingsystemisoneofimportantsystemofactivesafety.Basedonthestructuralanalysisandthedesignrequirementsofintermediatecar’sbrakingsystem,abrakingsystemdesignisperformedinthisthesis,accordingtothenationalandprofessionalstandards.Firstthroughanalyzingthemainparametersoftheentirevehicle,thebrakingsystemdesignstartsfromdeterminationofthestructurescheme.SecondlyCalculatinganddeterminingthemaindimensionandstructuraltypeofthefront、reardrumbrake，brakemastercylinderanssoon，Finallyuseofcomputer-aideddesigndrawingdrawtheengineeringdrawingsofthefrontandrearbrakes,themasterbrakecylinder,thediagramofthebrakepipelines.Furthermore,eachtargetofthedesignedsystemisanalyzedforcheckingwhetheritmeetstherequirements.somefactorsareconsideredinthisthesis,suchassimplestructure,lowcosts,andenvironmentalprotection,etc.Theresultshowsthatthedesignisreasonableandaccurate,comparingwiththerelatednationalstandards.Keywords：lighttruck；brake；drumbrake；mastercylinder；hydraulicpressuresystem目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc296282356"第1章绪论PAGEREF_Toc296282356\h1HYPERLINK\l"_Toc296282357"1.1本次制动系统设计的意义PAGEREF_Toc296282357\h1HYPERLINK\l"_Toc296282358"1.2本次制动系统应达到的目标PAGEREF_Toc296282358\h2HYPERLINK\l"_Toc296282359"1.3本次制动系统设计内容PA