三轴式五挡手动变速器毕业设计方案.doc

三轴式五档手动变速器设计摘要本设计任务是设计一台用于通用五菱之光微型车三轴式五档手动变速器，该变速器有两个突出优点：一是其直接档传动效率高，磨损及噪声也最小；二是在齿轮中心距较小情况下仍然能够取得较大一档传动比。伴随科学技术日益发展，汽车各项性能也日臻完善。现代汽车已成为世界各国国民经济和社会生活中不可缺乏交通工具。现代汽车除了装有性能优良发动机外还应该有性能优异传动系和之匹配才能将汽车性能淋漓尽致发挥出来，所以汽车变速器设计显得尤为关键。分析了为确保变速器含有良好工作性能，对变速器应提出设计要求。具体介绍了变速器机构方案确实定，变速器关键参数选择，变速器设计计算，同时器设计计算等在变速器设计过程中关键步骤。变速器用来改变发动机传到驱动轮上转矩和转速，目标是在原地起步，爬坡，转弯，加速等多种行驶工况下，是汽车取得不一样牵引力和速度，用时使发动机在最有利工况范围内工作。变速器设有空档和倒档。需要变速器还有动力输出功效。关键词：变速器；同时器；档数；轴；ThreeaxismanualshifttransmissiondesigninfiveAbstrackThisdesigntaskistodesignausedforgeneralWuLingsunshineinfiveofthethreeaxissubcompactmanualshifttransmission，thetransmissionhastwooutstandingadvantages：oneisitsdirecttransmissionofhightransmissionefficiency；wearandnoiseminimal；Second：inthegearcenterdistanceissmallerstillcanacquirelargergeartransmission.Alongwiththedevelopmentofscienceandtechnology,thecarofvariousperformancealsoisbeingperfected.Hyundaihasbecometheworldnationaleconomicandsociallifeofindispensabletransport.Moderncarwithgoodperformanceengineexceptoutsidestillshouldhaveexcellentperformancedrivetrainmatchingcarperformancewillplayout,sotheincisivelyandvividlyautotransmissiondesignisparticularlyimportant.Analyzedinordertoensuretransmissionhasgoodworkperformance：thetransmissionshouldproposedesignrequirements.Introducesthetransmissionmechanismprojectdetermination,andtransmissionmainparametersareselected,thetransmissiondesigncalculation,thesynchronizerdesigncalculationindesignprocesssuchasacriticalstepintransmission.Transmissionusedtochangetothedrivewheelsontheenginetorqueancdrotationalspeed,thepurposeisbackstarting,climbing,turn,accelerate,etc.Variouskindsofdrivingconditions,theautomobilegetdifferenttractionandtheenginespeedanduseitinthemostfavorableworkwithintheworkingconditions.Transmissionhasgapandreversing.Needtransmissionandpoweroutputfunctions.Keywords:transmission;Synchronizer;Filenumbered;Axis;目录汉字摘要英文摘要关键符号表1绪论1.1概述1.2五档手动变速器研究意义1.3中国外相关研究现实状况1.3.1手动变速器（MT）1.3.2自动/手动变速器（AMT）1.3.3自动变速器（AT）1.3.4无级变速器（CVT）1.3.5双离合器变速器（DCT）1.4本文关键研究