金属带式汽车无级变速器传动机构设计

I摘要在具有广阔的发展前景和市场空间的汽车行业中，车辆技术也得到较快的发展。金属带式无级变速器是一种新型的机械摩擦式无级变速器，具有承载能力强、效率高、平稳性好、环保节能等优良的传动特性，特别适用于需要传递中大功率而又需无级调速的场合。本设计是基于现代人们对汽车性能的更高要求，鉴于国内外专家对无级变速器的研究与分析，结合金属带式无级变速器的现状和发展趋势、基本结构、传动原理、性能特点，主要以其在轿车中的应用，设计金属带式无级变速器的传动机构，根据对设计参数的分析，对整个无级变速器的各级传动部分的传动方式进行详细的设计，包括主、从动带轮；主、从动锥盘；中间减速机构，使其与传统的变速器相比，耐用性能、加速性能、燃油性能以及排放性能都得到改善。关键词：金属带；无级变速器；传动机构；机械摩擦式；主、从动锥盘；中间减速机构IIABSTRACTInabroaddevelopmentprospectsandmarketspaceintheautoindustry,vehicletechnologyhasalsobeendevelopedquickly.Metalbelttypevariatorisanewtypeofmechanicalfrictiontypevariator,highbearingability,highefficiency,energysavingandsteadiness,goodenvironmentprotectionfinetransmissioncharacteristics,especiallysuitableforhighpowerandinneedtopasstosteplessspeedregulationoccasion.Thisdesignisbasedonthemodernpeopletoanautomobileperformancehigherrequest,inviewofthefactthatthedomesticandforeignexpertstovariator'sresearchandtheanalysis，combinedwiththemetalbelttypecontinuouslyvariabletransmissionofthestatusanddevelopmenttrends,thebasicstructure,transmissionprinciple,performancecharacteristics.Accordingtoitsapplicationincars,completedthedesignofmetalbeltCVTtransmission,basedonthedesignvariable'sanalysis,thetransmissionpartatalllevelsofdetaildesigntransmissionmode,,includingmaster,drivenpulleys;Lord,drivencone-disk;intermediatedecelerationinstitutionsandcomparedwiththetraditionaltransmission,durableperformance,andacceleratingperformance,fuelperformanceandemissionperformanceisimproved.Keywords：Metalbelt；ContiuouslyVariableTransmission；transmission；atypeofmechanicalfriction;lord,drivencone-disk;ntermediatedecelerationinstitutions黑龙江工程学院本科生毕业设计目录摘要.........................................................................................................................................IAbstract................................................................................................................................II第1章绪论.......................................................................................................................11.1概述..........................................................................................................................11.1.1金属带式无级变速器的发展.......................................................................11.1.2金属带式无级变速器的优点.......................................................................2第2章金属带式无级变速器传动的基本原理......................................................42.1金属带式无级变速器的基本组成..........................................................................42.1.1起步离合器...................................................................................................42.1.2行星齿轮机构...............................................................................................52.1.3无级变速机构...............................................................................................52.1.4控制系统.......................................................................................................52.1.5中间减速机构...............................................................................................72.2金属带式无级变速器的工作原理..........................................................................72.2.1金属带式无级变速器的工作原理...............................................................72.2.2离合器换向机构的工作原理.......................................................................72.3本章小结..................................................................................................................7第3章基本数据选择.....................................................................................................93.1主要技术指标..........................................................................................................93.1.1基本参数.......................................................................................................93.2齿轮相关数据的计算............................................................................................113.2.1齿轮参数.....................................................................................................113.2.2各齿轮齿数及参数分配.............................................................................123.3滚动球键...................................................................................错误!未定义书签。3.4本章小结...................................................................................错误!未定义书签。第4章齿轮校核...............................................................................错误!未定义书签。4.1齿轮材料的选择原则...............................................................错误!未定义书签。4.2计算各轴的转矩.......................................................................错误!未定义书签。4.3轮齿强度计算...........................................................................错误!未定义书签。4.3.1齿面接触强度参数计算................................................错误!未定义书签。4.3.2齿面接触应力计算........................................................错误!未定义书签。4.3.3轮齿弯曲强度计算........................................................错误!未定义书签。4.4各齿轮受力计算....................................................................................................224.5本章小结...........................