PAGEII黑龙江工程学院本科生毕业设计PAGEXIII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ABSTRACTInabroaddevelopmentprospectsandmarketspaceintheautoindustry,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目录TOC\o"1-3"\h\uHYPERLINK\l_Toc22510摘要PAGEREF_Toc22510IHYPERLINK\l_Toc21737AbstractPAGEREF_Toc21737IIHYPERLINK\l_Toc5258第1章绪论PAGEREF_Toc52581HYPERLINK\l_Toc132211.1概述PAGEREF_Toc132211HYPERLINK\l_Toc96481.1.1金属带式无级变速器的发展PAGEREF_Toc96481HYPERLINK\l_Toc302471.1.2金属带式无级变速器的优点PAGEREF_Toc302472HYPERL