轿车两轴机械式变速器结构设计（机械cad图纸）

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1、本科机械毕业设计论文CAD图纸QQ401339828摘要变速器是汽车的核心组成部分，用来改变发动机传到驱动轮上的转矩和转速，将动力有效而经济地传至驱动车轮，以满足汽车的使用要求。变速器是完成传动系任务的重要部件，也是决定整车性能的主要部件之一。变速器的设计水平对汽车的动力性、燃料经济性、换挡操纵的可靠性与轻便性、传动平稳性与效率等都有直接的影响。随着汽车工业的发展，轿车变速器的设计趋势是增大其传递功率与重量之比，并要求其具有更小的尺寸和良好的性能。本设计以一汽大众捷达GTX变速器为基础，在给定发动机输出转矩、转速及最高车速、最大爬坡度等条件下，着重对变速器齿轮的结构参数、轴的

2、结构尺寸等进行设计计算；并对变速器的传动方案和结构形式进行设计；同时对操纵机构和同步器的结构进行设计；从而提高汽车的整体性能。关键词：捷达；变速器；齿轮；设计；结构-II-本科机械毕业设计论文CAD图纸QQ401339828ABSTRACTTransmissionisthecorecomponentsofautomobile.Itstaskistransformingandregulateingtheperformanceofengine.Itcanbeusedtochangetheenginedrivingwheelonthespreadoftorqueandspeed.T

3、ransmissionistheimportantpartofdrivetraincomponentstocompletethetasks.aswellasoneofthemainfactortodecidethewholeperformanceofvehicle.ThestandardsofTransmissiondesigningcandirectlyimpactthevehicledynamics,fueleconomy,thereliabilityandportabilityofshifting,thesmoothnessandefficiencyofTransmit

4、ing.Alongwiththedevelopmentoftheautomobileindustry,thetrendofcartransmissiondesigningistoincreaseitstransmissionpoweranddecreseitsweight,andhopehavesmallersizeandexcellentperformance.ThedesignbasedontheFAW-VolkswagenAutomotiveCompanyLtd’JETTATransmission,Inconditionsthatknowingtheengineoutp

5、uttorque,speedofengineandmaximumspeedofvehicles,maximumdegree,focusonthedesigningoftransmissiongearstructuralparameters,axisgeometrydesigncomputation;aswellasthetransmissionanddriveprogramstructuredesign;Meanwhileonthestructureofcomponentstomanipulationandsynchronousdesign;therebyenhancingt

6、heoverallperformanceofcars.Keywords:JETTA；Transmission；Gear；Design；Structure-II-本科机械毕业设计论文CAD图纸QQ401339828-60-本科机械毕业设计论文CAD图纸QQ401339828目录摘要·····························································ⅠAbstract·························································Ⅱ目录·····················

7、·······························Ⅲ第1章绪论·····················································11.1概述·····················································11.1.1汽车变速器的设计要求···································11.1.2国内外汽车变速器的发展现状·····························21.2设计