六速自动变速器行星传动设计与分析

六速自动变速器行星传动设计与分析重庆大学硕士学位论文（专业学位）学生姓名：徐骁指导教师：朱才朝教授兼职导师：袁隆华高工学位类别：工程硕士（车辆工程领域）重庆大学车辆工程学院二O一六年五月Six-speedAutomaticTransmissionPlanetaryGearDesignandAnalysisAThesisSubmittedtoChongqingUniversityinPartialFulfillmentoftheRequirementfortheProfessionalDegreeByXuXiaoSupervisedbyProf.ZhuCaichaoPluralisticSupervisedbySeniorEngineerYuanLonghuaSpecialty:ME(AutomobileEngineeringField)SchoolofAutomobileEngineeringofChongqingUniversity,Chongqing,ChinaMay,2016中文摘要I摘要汽车动力传动系统中，由于发动机转速较高、扭矩较小、转速与扭矩变化范围有限等特点，需要自动变速器改变转速和转矩，并根据外界环境的变化自动切换到与之相匹配的档位，因而得到广泛使用。自动变速器已呈现多档位化的发展趋势，行星传动作为自动变速器实现换挡的关键部件结构也日益复杂，同时由于相关专利限制，开展自动变速器行星传动设计与分析研究具有重要的工程实际价值。论文的主要研究内容如下：①对自动变速器结构和工作原理进行介绍，分类整理自动变速器中行星齿轮机构的不同组合方式，得到在构造自动变速器行星齿轮机构的规则。②对自动变速器行星传动进行编码，建立行星传动数学模型，推导描述行星传动的结构矩阵和控制矩阵，提出构造结构矩阵和控制矩阵的方式完成自动变速器行星传动设计的方法；基于行星排特性方程，提出行星传动换挡方案优选的方法；基于MATLAB开发自动变速器行星传动设计和换挡方案优选的软件。③对某重卡六速自动变速器行星传动进行设计，利用所开发软件完成六速自动变速器行星传动行星齿轮机构、控制元件方案、换挡方案的设计，得到六速自动变速器行星传动方案；完成行星传动齿轮和轴承参数的设计，在MASTA软件中建立自动变速器行星传动的三维模型。④对设计的六速自动变速器行星传动强度进行分析，得到齿轮静态安全系数，验证行星排强度设计；对设计的六速自动变速器行星传动啮合特性进行分析，得到各齿轮副啮合印痕，验证行星排几何修形量设计的合理性；对设计的六速自动变速器行星传动效率、疲劳寿命进行分析。关键字：自动变速器，行星齿轮机构，行星传动设计，性能分析重庆大学硕士学位论文II英文摘要IIIABSTRACTIntheautomotivepowertrainsystem,duetotheenginehavehighspeed,lowtorque,smallrangeofspeedandtorquecharacteristics,theautomotiveneedautomatictransmissionspeedupandslowdown,accordingtothechangesintheexternalenvironmentautomaticswitchestothematchedshift,whicharewidelyused.Inordertoimprovetheperformanceofautomatictransmission,whichhasmultipleshiftdevelopmenttrend,planetarytransmissionasautomatictransmissionkeypartsisbecomingmoreandmorecomplex,thusidentifyingareliable,practicalandsystematicapproachtoplanetarytransmissionconfiguration,design,andanalysishavegreatpracticalvalue.Themaincontentsofthepaperareasfollows:①Introducesthestructureandworkingprincipleofautomatictransmission,Throughsortingdifferentcombinationsofplanetarygear,gaintherulesofconstructplanetarygearinautomatictransmission②Codingtheplanetarytransmissionofautomatictransmission,establishedplanetarytransmissionmathematicsmodel,proposeamethodthroughdesignstructurematrixandcontrolmatrixcompletedplanetarytransmissiondesign.Basedontheequationofsinglestageplanetarygear,proposeamethodtooptimizationautomatictransmissionshiftplan.DevelopingthesoftwarebasedonMATLAB.③Completedsix-speedautomatictransmissionratiodesign,usingthestructurematrixdesignmodule,andshiftplanoptimizationmodulecompletedsix-speedautomatictransmissionconceptualdesign.Completedplanettransmissiongearparameterandbearingparameterdesign,establishedplanettransmissionthreedimensionalmodelinMASTAsoftwareinthe.④Analysissix-speedautomatictransmissionstrength,getgearstaticsafety,validationtherationalityofplanetgearstrengthdesign.Analysissix-speedautomatictransmissionmeshingcharacteristics,getthegearmeshingprints,validationtherationalityofplanetgeargeometrymodification.Analysissix-speedautomatictransmissionefficiency,fatiguelife.Keywords:AutomaticTransmissions,PerformanceAnalysis,PlanetaryTransmissionConfigurations,PlanetaryGearStructure重庆大学硕士学位论文IV目录V目录中文摘要........................................................................................................I英文摘要......................................................................................................III1绪论........................................................................................................11.1课题的背景和意义.....................................................................................................................11.2自动变速器发展现状.................................................................................................................31.3本论文的主要工作内容.............................................................................................................62自动变速器行星传动构型设计................................................................92.1引言............................................................................................................................................92.2自动变速器的基本结构与工作原理.........................................................................................92.2.1基本结构与工作原理..........................................................................................................92.2.2行星齿轮机构分类............................................................................................................112.3自动变速器行星传动数学模型的建立...................................................................................142.3.1自动变速器行星传动的结构矩阵.....................................................................................152.3.2自动变速器行星传动的控制矩阵.....................................................................................152.4行星传动结构矩阵与控制矩阵设计.......................................................................................162.4.1结构矩阵设计....................................................................................................................162.4.2控制矩阵的设计................................................................................................................172.5行星传动档位优选..