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1、汽車后橋殼設(shè)計(jì)畢業(yè)論文摘要汽車后橋殼是汽車的重要組成部分,它與主減速器、差速器和車輪傳動(dòng)裝置組成驅(qū)動(dòng)橋。驅(qū)動(dòng)橋處于動(dòng)力傳動(dòng)系的末端,其機(jī)動(dòng)功能是增大由傳動(dòng)軸或變速器傳來的轉(zhuǎn)矩,并將動(dòng)力合理的分配給左、右驅(qū)動(dòng)輪,另外驅(qū)動(dòng)橋橋殼是汽車上重要的承載件和傳力件。驅(qū)動(dòng)橋的橋殼不僅支承汽車重量,將載荷傳遞給車輪,而且還承受由驅(qū)動(dòng)車輪傳遞過來的牽引力、制動(dòng)力、側(cè)向力、垂向力的反力以及反力矩,并經(jīng)懸架傳給車架或車身。在汽車行駛過程中,由于道路條件的千變?nèi)f化,橋殼受到車輪與地面間產(chǎn)生的沖擊載荷的影響,可能引起橋殼變形或折斷。因此,驅(qū)動(dòng)橋殼應(yīng)具有足夠的強(qiáng)度、
2、剛度和良好的動(dòng)態(tài)特性,合理地設(shè)計(jì)制造驅(qū)動(dòng)橋殼是提高汽車行駛穩(wěn)定性的重要措施,汽車后橋殼廣泛應(yīng)用于各種車輛當(dāng)中。所設(shè)計(jì)的后橋殼夾具可廣泛應(yīng)用于卡車的后橋殼加工中,后橋殼起保護(hù)和支撐的作用,其主要加工表面為端面外圓、法蘭平面、彈簧座平面、以及內(nèi)孔等。本次設(shè)計(jì)的內(nèi)容主要包括機(jī)械加工工藝規(guī)程、夾具的設(shè)計(jì)。結(jié)合本次設(shè)計(jì)零件的特點(diǎn),在設(shè)計(jì)中完成工藝規(guī)程一套,夾具一套。銑床夾具,采用手動(dòng)夾緊。通過對(duì)汽車后橋殼夾具的學(xué)習(xí)和設(shè)計(jì),可以更好的學(xué)習(xí)并掌握現(xiàn)代夾具設(shè)計(jì)與機(jī)械設(shè)計(jì)的全面知識(shí)和技能。關(guān)鍵詞:汽車后橋;工藝規(guī)程;夾具AbstractAutomobile
3、rearbridgeisanimportantpartofthecar,withthemainreducer,differentialandintegraldriveaxlewheeltransmissiondevice.Drivebridgeattheendofpowertransmissionlines,themotorfunctionisincreasedbytransmissionorgearboxtransmissionoftorque,andpowerdistributiontotheleftandrightdrivingwh
4、eel,andtheautomobiledriveaxlehousingistheimportantloadbearingandpowertransmission.Driveaxlehousingnotonlysupportstheweightofthecar,willloadtothewheel,andalsobearthedrivewheelspassoverthetractionforce,brakingforce,lateralforce,verticalforcereactionforceandtorque,andthesusp
5、ensiontotheframeorbody.Intheprocessofmovingvehicle,themyriadsofchangesduetoroadconditions,thebridgeshellunderwheelandthegroundproduceseffectofimpactload,maycausetheaxlecasingdeformationorbreaking.Therefore,driveaxlehousingshouldhaveenoughstrength,stiffnessandgooddynamicch
6、aracteristics,reasonabledesignandmanufactureofdriveaxlehousingistheimportantmeasuretoimprovevehiclestability,autorearbridgeshelliswidelyusedinvariousvehicles.Thedesignofrearaxlehousingclampcanbewidelyusedintruckrearaxleshellprocessing,rearaxlehousingforprotectionandsuppor
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8、ping.Theautomobilerearaxlehousingclampstudyanddesign,canbeabetterlearningandmasteryofmoderndesig
