轎車用機(jī)械式自動變速器操控機(jī)構(gòu)設(shè)計(jì)論文[帶圖紙].doc

畢業(yè)論文（設(shè)計(jì)）題目：轎車用機(jī)械式自動變速器操控機(jī)構(gòu)設(shè)計(jì)（英文）DesignofAutomaticMechanicalTransmissionMechanismofSedan院別：機(jī)電學(xué)院專業(yè)：機(jī)械設(shè)計(jì)制造及其自動化（汽車工程）姓名：陳醒環(huán)學(xué)號：2006090343030指導(dǎo)教師：楊勇日期：2010年6月轎車用機(jī)械式自動變速器操控機(jī)構(gòu)設(shè)計(jì)摘要自動變速控制是現(xiàn)代汽車的一項(xiàng)重要技術(shù)，也是智能車輛的基本功能。電控機(jī)械式自動變速器AMT以其傳動效率高、成本低和易于制造等優(yōu)點(diǎn)，非常適合我國汽車工業(yè)的發(fā)展現(xiàn)實(shí)，具有很好的產(chǎn)業(yè)化前景和廣闊的應(yīng)用范圍。本文是對轎車用機(jī)械自動變速器AMT的執(zhí)行機(jī)構(gòu)進(jìn)行了設(shè)計(jì)，其中AMT的執(zhí)行機(jī)構(gòu)包括控制離合器的分離結(jié)合機(jī)構(gòu)和選檔換擋機(jī)構(gòu)。由于電控電動類型的AMT變速器有結(jié)構(gòu)簡單緊湊，生產(chǎn)成本低，污染少等優(yōu)點(diǎn)，所以本文所設(shè)計(jì)的AMT執(zhí)行機(jī)構(gòu)采用電機(jī)驅(qū)動。本文分別對電動離合器和電動選換檔執(zhí)行機(jī)構(gòu)的各種方案進(jìn)行討論并作最佳選擇。最佳的方案確定后選擇執(zhí)行電機(jī)，根據(jù)所要實(shí)現(xiàn)的功能和各個約束的尺寸設(shè)計(jì)出執(zhí)行機(jī)構(gòu)的結(jié)構(gòu)，并對執(zhí)行機(jī)構(gòu)的各個關(guān)鍵的部位進(jìn)行了強(qiáng)度的校核。最后計(jì)算整個換檔的過程所用的時間，對比是否符合要求，并作出結(jié)論。關(guān)鍵詞：AMT，電機(jī)，離合器，選換檔，執(zhí)行機(jī)構(gòu)DesignofAutomaticMechanicalTransmissionMechanismofSedanAbstractAutomatictransmissioncontrolisanimportanttechnologyinmoderncars,butalsothebasicfunctionsofintelligentvehicles.BecauseelectronicallycontrolledmechanicalautomatictransmissionAMThastheadvantagesofhightransmissionefficiency,lowcostandeasy-to-manufacturing,itisverysuitableforthedevelopmentofChina'sautomobileindustry,andhasgoodprospectsforindustrializationandwiderangeofapplications.ThispaperisadesignofamechanicalautomatictransmissionAMT'simplementationagencies,，whichincludecombinationseparationofinstitutionsandselectedfileshiftingorganizationsofclutchcontrol.AsthetypesofAMTofElectricPowerTransmissionhassimpleandcompactstructure,lowproductioncost,lesspollution,etc,sothedesignofAMTimplementationagenciesusemotordriveorganizations.Thispaperdiscussvariousoptionsoftheelectricclutchandelectricelectionshiftimplementationagenciesandmakethebestchoice.Whenthebestoptionistobedetermined,weshouldselecttheimplementationofmotor,andthendesignthestructureofimplementationagenciesonthebaseofthefunctiontobeachievedandthevariousconstraintsofsize,andcheckthekeypartsofthevariousagenciesofimplementationagencies.Finallycaculatingthetimethattheprocessoftheshiftspend,andseeitfitstherequirementsornot,andmakeaconclusion.Keywords:AMT,motor,clutch,gearselection,implementationagencies目錄第1章緒論....................................................................................................................11.1課題研究背景....................................................................................................11.2自動變速器的分類............................................................................................21.3AMT變速器發(fā)展歷程及現(xiàn)狀...........................................................................31.3.1AMT技術(shù)在國外的發(fā)展歷史.................................................................41.3.2AMT的發(fā)展現(xiàn)狀.....................................................................................41.3.3AMT的發(fā)展趨勢.....................................................................................51.4本文的主要工作................................................................................................61.5本章小結(jié)............................................................................................................7第2章AMT的關(guān)鍵控制技術(shù)......................................................................................92.1AMT的原理、結(jié)構(gòu)與分類...............................................................................92.1.1AMT的原理.............................................................................................92.1.2AMT的結(jié)構(gòu)...........................................................................................102.1.3AMT的分類...........................................................................................102.2AMT系統(tǒng)功能和關(guān)鍵技術(shù)..............................................................................112.2.1AMT的系統(tǒng)功能....................................................................................112.2.2AMT的關(guān)鍵技術(shù)...................................................................................142.3本章小結(jié)..........................................................................................................17第3章電動離合器操控機(jī)構(gòu)的設(shè)計(jì)..........................................................................183.1電動離合器執(zhí)行機(jī)構(gòu)的方案選擇..................................................................183.2電機(jī)的選型......................................................................................................193.3電動離合器操控機(jī)構(gòu)各零件的設(shè)計(jì)..............................................................193.3.1螺桿的設(shè)計(jì)............................................................................................193.3.2螺桿的結(jié)構(gòu)設(shè)計(jì)....................................................................................253.3.3螺桿軸承的計(jì)算....................................................................................263.3.4螺母的結(jié)構(gòu)設(shè)計(jì)....................................................................................273.3.5助力彈簧的設(shè)計(jì)....................................................................................283.3.6拉桿的設(shè)計(jì)............................................................................................313.3.7轉(zhuǎn)臂的設(shè)計(jì)............................................................................................323.4計(jì)算離合器分離時間......................................................................................343.5本章小結(jié)..........................................................................................................34第4章選檔換檔機(jī)構(gòu)的設(shè)計(jì)......................................................................................354.1選檔換檔方案的選擇......................................................................................354.2選檔機(jī)構(gòu)的設(shè)計(jì)..............................................................................................354.2.1選檔電機(jī)的選用....................................................................................364.2.2選檔齒輪的設(shè)計(jì)....................................................................................364.2.3選檔齒條的設(shè)計(jì)....................................................................................394.3換檔機(jī)構(gòu)的設(shè)計(jì)..............................................................................................404.3.1換檔電機(jī)的選用....................................................................................414.3.2換檔軸的設(shè)計(jì)........................................................................................424.3.3換檔塊的設(shè)計(jì)........................................................................................454.3.4聯(lián)軸器的設(shè)計(jì)........................................................................................474.4選換檔所用時間的計(jì)算..................................................................................494.5AMT變速器整個換檔的時間計(jì)算.................................................................494.6本章小結(jié)..........................................................................................................50第5章全文總結(jié)..........................................................................................................515.1主要工作內(nèi)容..................................................................................................515.2研究展望..........................................................................................................51參考文獻(xiàn)........................................................................................................................53致謝................................................................................................................................55附錄...................................................................................................錯誤!未定義書簽。