倉(cāng)庫(kù)大門開(kāi)閉機(jī)構(gòu)設(shè)計(jì)畢業(yè)論文.doc

第1頁(yè)目錄1緒論11.1概述11.2鏈傳動(dòng)11.3齒輪傳動(dòng)31.3.1齒輪傳動(dòng)發(fā)展趨32鏈傳動(dòng)部份的設(shè)計(jì)52.1鏈的設(shè)計(jì)52.2滾子鏈強(qiáng)度校核73減速機(jī)構(gòu)的設(shè)計(jì)83.1電機(jī)的選型83.2傳動(dòng)零件設(shè)計(jì)93.2.1第一級(jí)傳動(dòng)93.2.2第二級(jí)傳動(dòng)143.2.3第三級(jí)傳動(dòng)193.3軸的計(jì)算243.3.1高速軸243.3.2中間軸283.3.3中間軸323.3.4輸出軸363.4滾動(dòng)軸承的選擇和計(jì)算403.5鍵連接的計(jì)算433.6減速器的潤(rùn)滑和密封形式453.7減速器箱體、附件設(shè)計(jì)473.8出廠檢驗(yàn)與試驗(yàn)493.9儲(chǔ)運(yùn)、安裝、試動(dòng)轉(zhuǎn)、維護(hù)513.10試運(yùn)轉(zhuǎn)523.11使用維護(hù)534鏈輪的具體尺寸設(shè)計(jì)544.1整體尺寸544.2軸向齒廓及尺寸555鏈輪軸的設(shè)計(jì)與布置565.1鏈條的豎直張緊與軸的設(shè)計(jì)56第2頁(yè)5.2鏈輪的水平張緊與軸的設(shè)計(jì)585.3大門2的主動(dòng)輪布置59結(jié)論61參考文獻(xiàn)62翻譯部分英文原文64中文譯文69致謝73摘要倉(cāng)庫(kù)大門主要是為了方便倉(cāng)庫(kù)內(nèi)的貸物進(jìn)出，為了達(dá)到此目的。此次設(shè)計(jì)中大門為對(duì)開(kāi)式，每扇門寬4米、高6米，重900千克。大門開(kāi)閉驅(qū)動(dòng)方式為電機(jī)驅(qū)動(dòng)，而且兩扇門共用一個(gè)電機(jī)。電機(jī)帶動(dòng)一個(gè)圓柱直齒三級(jí)減速器，在減速器的輸出軸上帶鏈輪，大門的伸縮桿卡在鏈條的卡口內(nèi)，當(dāng)鏈輪轉(zhuǎn)動(dòng)時(shí)帶動(dòng)鏈運(yùn)動(dòng)從而使大門與鏈同步運(yùn)動(dòng)。為了使兩個(gè)大門能實(shí)現(xiàn)同步開(kāi)閉，在電機(jī)的輸出軸上還帶有一個(gè)齒輪，與另一扇門的鏈輪軸上同尺寸齒輪相嚙合，使另一扇門的鏈輪與電機(jī)直接驅(qū)動(dòng)的鏈輪轉(zhuǎn)速相等而方向相反。門的開(kāi)與閉由電機(jī)正反轉(zhuǎn)控制。當(dāng)大門開(kāi)到極限位置時(shí)，會(huì)將大門導(dǎo)軌上的行程開(kāi)關(guān)觸點(diǎn)壓開(kāi)電機(jī)停止轉(zhuǎn)動(dòng)。整個(gè)機(jī)構(gòu)中主要涉及的傳動(dòng)方式為鏈傳動(dòng)。由于每扇大門寬4米所以鏈傳中系統(tǒng)中兩個(gè)鏈輪的設(shè)計(jì)中心距為4.5米，為了防止中心距過(guò)大鏈產(chǎn)生下垂，采用增大中心距的辦法對(duì)鏈進(jìn)行張緊。而鏈輪軸都采用懸臂梁式軸，一端伸在預(yù)埋在墻上的鋼板內(nèi)，在軸表面車螺紋軸用螺母將其固定在鋼板上。第3頁(yè)關(guān)鍵詞：鏈傳動(dòng)、鏈張緊、三級(jí)減速ABSTRACTWarehousedooristofacilitatethestorageoftheloan-to-access,inordertoachievethisobjective.Thedesignoftheoff-door,thedoorofeachfourmeterswide,sixmetershigh,weight900kg.Closedthedooropenforthedrivemotordrive,andtwodoorsshareamotor.Acylindricalmotordriventhreestraightteethreducer,theoutputshaftinreducerwithsprocket,theexpansion-carddoortothechainofcardsinthemouth,whentherotationwhenthesprocketchaindrivenmovementsothatthedoorchainsynchronizationwiththemovement.Inordertoachievethetwodoorscanbeopenedsimultaneouslyclosed,theoutputshaftinthemotoralsohasagear,andanotherdoorofthesamesizegearsprocketaxisofengagementsothatanotherdoorofthemotoranddirectdrivesprocketMovingthesprocketandthesamespeedinoppositedirections.Thedoorsopenedandclosedbythepositiveandmotorcontrol.Whenthedooropenedtothelimitposition,thedoorwillguidethetripswitchcontactpressuretostopamotorrotation.Themainagenciesinvolvedinthetransmissionmodeforthechaindrive.Sinceeachdoorfourmeterswideintheso-linkedsystemofthetwosprocketdesigncenterdistanceof4.5metres,inordertopreventthecenterfromadroptoomuchlinkedwithincreaseddistancetothechaintension.Thechainaxle-shaftcantileverused,intheendstretchofembeddedinthewallplate,inthes