新型自行车变速器的设计与制造摘要（中文）：摘要本文在分析各种无级变速器和无级变速自行车的基础上，把钢球外锥式无级变速器进行部分改装，从而形成了自行车的无级变速装置。该装置通过八个钢球利用摩擦力将动力进行输入输出，用一对斜齿轮进行分度调速，从而使自行车在0.75～1.22之间进行无级调速。研究表明：无级变速器被用于自行车方面可以大大改善自行车的使用性能，方便广大消费者使用。关键字:无级变速自行车；无级变速器1新型自行车变速器的设计与制造摘要（英文）：ABSTRACT:BasedontheanalysisofvariousCVTandCVTbikes,inthisdissertation,wechangesomepartsoftheKopp-BCVTforminganewkindofCVTusedtothebicycle.Theyareusedtoinputoroutputthepowerthroughthefrictionandapairofhelicalgearsisalsousedtoadjustthespeed,sothespeedcanchangebetween0.75and1.22.ThisresearchshowsthatwhentheCVTareusedinthebicycle,theycansignificantimprovetheperformanceofbikesothatallcustomerscanuseitconvenient.Keyword:CVTbike;CVT2新型自行车变速器的设计与制造目录第一章绪论...................................................................................................................................41.1机械无级变速器的发展概况.............................................................................................41.2机械无级变速器的特征和应用.........................................................................................51.3无级变速自行车研究现状................................................................................................61.4毕业论文设计内容和要求.................................................................................................8第二章自行车无级变速器总体方案的选择...................................................................................92.1钢球长锥式(RC型)无级变速器.........................................................................................92.2钢球外锥式无级变速器...................................................................................................102.3两方案的比较与选择.......................................................................................................11第三章钢球外锥式无级变速器部分零件的设计与计算...........................................................123.1钢球与主﹑从动锥齿轮的设计与计算...........................................................................123.2加压盘的设计与计算.............................................................................................