摘要高爾夫球車后橋（驅動橋）作為汽車四大總成之一，它承載著高爾夫球車的滿載荷負重及地面經車輪、車架及承載式車身經懸架給予的鉛垂力、縱向力、橫向力及其力矩，以及沖擊載荷；后橋（驅動橋）還傳遞著傳動系中的最大轉矩，橋殼還承受著反作用力矩。高爾夫球車驅動橋結構型式和設計參數除對汽車的可靠性與耐久性有重要影響外，也對汽車的行駛性能如動力性、經濟性、平順性、通過性、機動性和操動穩定性等有直接影響。另外，高爾夫球車驅動橋在汽車的各種總成中也是涵蓋機械零件、部件、分總成等的品種最多的大總成。例如，驅動橋包含主減速器、差速器、驅動車輪的傳動裝置（半軸及輪邊減速器）、橋殼和各種齒輪。由上述可見，高爾夫球車驅動橋設計涉及的機械零部件及元件的品種極為廣泛，對這些零部件、元件及總成的制造也幾乎要涉及到所有的現代機械制造工藝。本文參照傳統驅動橋的設計方法進行了高爾夫球車驅動橋的設計。本文首先確定主要部件的結構型式和主要設計參數；然后參考類似驅動橋的結構，確定出總體設計方案；最后對一二級主，從動圓柱齒輪，半軸齒輪和全浮式半軸強度進行校核以及對支承軸承進行了壽命校核。本設計有以下兩大難題，一是將發動機輸出扭矩通過萬向傳動軸將動力傳遞到后輪子上，達到更好的車輪牽引力與轉向力的有效發揮，從而提高載重汽車的行駛能力。二是差速器向兩邊半軸傳遞動力的同時，允許兩邊半軸以不同的轉速旋轉，滿足兩邊車輪盡可能以純滾動的形式作不等距行駛，減少輪胎與地面的摩擦。本設計具有以下的優點：由于的是采用二級圓柱斜齒輪主減速器，使得整個后橋的結構簡單，制造工藝簡單，從而大大的降低了制造成本。并且，提高了傳動的可靠性。本設計的最大特點是：主減速器是采用傳統的圓柱斜齒輪減速器，與其他的齒輪相比，具有工作平穩，噪音和振動小的優點，且經濟性好。關鍵詞：高爾夫球車；后橋；二級主減速器；圓柱斜齒輪SummaryThebridge(drivebridge)isacarafterthegolfcarfourgreatlyalwaysbecomeofa,itloadsthecapacityloadlotusofgolfcarnegativeheavyandgroundthroughcarwheel,carandloadingtypecarriagethroughhangtheverticaldintthatgives,lengthwaysdint,horizontaldintanditsdintJu,andtheimpactcarriesalotus；Theempressbridge(drivebridge)stilldeliverstospreadtomovetofastenmediumbiggestturnJu,thebridgehullstillbearsrecoilJu.Thegolfcardrivesbridgestructurepatternandinadditiontohavingimportantinfluencetothecredibilityanddurableofthecar,designparameteralsotodrivingofcarthefunctionislikemotive,economy,goingsmoothlyandpasssex,flexibilityandholdtomovestabilityetc.tocontaindirectinfluence.Moreover,thegolfcardrivesbridgeinthecarofvariousalwaysbecomeinisalsothatthespeciesthatcoversmachinespareparts,partsandcenttoalwaysbecomeetc.isatmostgreatlytotal.Forexample,drivebridgecontainment,thelorddeceleratesamachine,badsoonmachine,drivefelloetospreadtomovedevice(halfstalkandroundsidedeceleratemachine),bridgehullandvariouswheelgear.Fromabove-mentioneditisthusclearthat,thegolfcardrivesthespeciesofmachinezeropartsesandcomponentsthatthebridgedesigninvolvesextremelyextensive,alsoalmostwanttoinvolveallmodernmachinemanufacturingsacrafttothesezeropartses,componentsandthemanufacturingalwaysbecoming.Thistextaccordingtothedesignmethodthatthetraditiondrivesbridgedtocarryonthedesignthatthegolfcardrivesbridge.Thistextmakessurethestructurepatternandmaindesignparameterofmainpartsfirst；Thenmakereferencetosimilardrivethestructureofbridge,makesureatotaldesignofofproject；Finallyto12classlords,frommovecylinderwheelgear,halfstalkthewheelgearandthewholefloattypehalfstalkstrengthcarryonpitintheschoolandacceptbearingstocarryonpitinthelifespanschooltowardspaying.Thisdesigncontainsfollowingtwogreatesthardnuttocrackses,oneistwistmotorexportationtheJupasstenthousandtospreadtomovestalktodeliverthemotivetobehindwheelup,attainbettercarwheeltoleaddintwithchangedirectioneffectiveexertionofdint,thusexaltationcarryheavycarofdriveability.Twoisbadsoonwhilemachineisdeliveringmotivetowardthebothsideshalfstalk,allowbothsideshalfstalkwithdissimilarityofturntosoonrevolve,satisfybothsidescarwheelpossiblywithpurelyrolloveroftheformmakenotetc.beapartfromtodrive,reducethefrictionoftireandground.Thisdesignhasafollowingadvantage:Becauseofisadoptasecondclasscylinderwheelgearlordtodecelerateamachineandmakewholeafterthestructureofthebridgesimple,manufacturingthecraftissimpleandthusandconsumedlyloweredamanufacturingcost.And,raisedtospreaddynamiccredibility.Thebiggestcharacteristicsofthisdesignis:Thelorddecelerationmachineadoptstraditionalcylinderwheelgeartodecelerateamachineandhavetoworkcomparedwithotherwheelgearssteady,noiseandvibrateasmalladvantage,andeconomygood.Keyword:Golfcar；Empressbridge；Thesecondclasslorddeceleratesamachine；Cylinderwheelgear目錄前言.51高爾夫球車發展簡介.61.1.1國內電動車行業發展現狀.61.1.2國內電動車行業發展前景.72主減速器設計.92.1主減速器的結構形式.92.1.1主減速器的齒輪類型.92.1.2主減速器的減速形式.102.1.3主減速