货车驱动桥毕业设计

2012届毕业设计说明书I2012届毕业设计说明书I摘要2012届毕业设计说明书IIABSTRACT2012届毕业设计说明书I2012届毕业设计说明书IThedesignisareferencetothetraditionalaxledesign.Accesstoalotofinformationinthedesignprocess.Thisdesignisthefirstdemonstrationprogram.Followedbythestructureofthedriveaxledesign.Includingthechoiceofthenumberofgearpairs,thechoiceofgeartypedifferentialdesign,thechoiceofthedifferentialgear,axlehousingstructure.Whichforcethecheck:themaindrivengearcheck,check,bearingaxlesplineandgearshaftsplinechecking,axlecheckunderdifferentworkingenvironments.Inthedesignprocessinaccordancewiththeconditionsofuseofdesignreferencemodels,purpose,andselecttheappropriatestructure.Takingintoaccountthepracticality,economy,stabilityofthedriveaxle.3DmodelingsoftwareforUG7.5,andcatiaV52DdrawingsdrawnmainlyusecatiaV5.UseofUG7.5assemblysimulationexercise.Anddetectthespatialrelationshipsofvariouspartsinthe3Dmodelingprocess.Appropriatechangestotheparametersoftheprimary.Thedesignseekstomeetthecase,theaxlestructureissimplified.Trytoreducecostsandimprovethestabilityofthedriveaxle.However,duetothelimitationsoftheirownlevel,therearemanyinadequacies.Ihopeyoucorrect!Keywords:medium-sizedtruckstherearaxledifferentialaxlehousing2012届毕业设计说明书I目录第一章主减速器的设计..............................................................................................11.1主减速器的结构形式.......................................................................................11.2主减速器减速型式的选择...............................................................................11.3主减速器齿轮型式的选择...............................................................................11.3.1螺旋锥齿轮与双曲面齿轮比较.............................................................21.3.2双曲面齿轮传动比螺旋锥齿轮传动还具有如下优点.........................31.4主减速器主动齿轮的支承型式选择...............................................................31.4.1主减速器主动齿轮的支承型式.............................................................31.5主减速器从动齿轮支承的选择.......................................................................41.6主减速器齿轮计算荷载的确定.......................................................................51.7主减速器齿轮基本参数的选择.......................................................................71.7.1齿数的选择.............................................................................................71.7.2节圆直径的选择.....................................................................................81.7.3齿轮端面模数的选择.............................................................................81.7.4齿面宽的选择.........................................................................................91.7.5双曲面齿轮的偏移距E与偏移方向的选择........................................91.7.6双曲面齿轮螺旋方向的选择...............................................................101.7.7螺旋角的选择.......................................................................................111.7.8齿轮法向压力角的选择...................................................................131.8双曲面齿轮的强度计算.................................................................................151.8.1单位齿长上的圆周力...........................................................................151.8.2齿轮的弯曲强度计算...........................................................................161.8.3齿轮的接触强度计算...........................................................................181.9主减速器齿轮的材料及热处理.....................................................................191.10主减速器轴承的计算...................................................................................20第二章差速器............................................................................................................262.1差速器的结构与选择.....................................................................................262.2差速器齿轮基本参数选择.............................................................................272.2.1行星齿轮数目的选择...........................................................................272.2.2行星齿轮球半径RB的确定................................................................272.2.3行星齿轮与半轴齿轮齿轮数的选择...................................................282.2.4差速器锥形齿轮模数及半轴齿轮节圆直径的初选...........................282012届毕业设计说明书II2.2.5压力角...............................................................................................292.2.6行星齿轮的安装直径及其深度L的确定.......................................292.3差速器齿轮的弯曲应力.................................................................................30第三章驱动桥车轮的传动装置................................................................................313.1半轴的型式.....................................................................................................313.1.1半浮式半轴...........................................................................................313.1.23/4浮式半轴........................................................................................313.1.3全浮式半轴...........................................................................................323.2半轴的设计与计算........................................................................................353.2.1载荷工况...............................................................