熱軋板帶鋼生產(chǎn)線精軋機(jī)換輥小車設(shè)計(jì)說明書.doc

黑龍江工程學(xué)院本科生畢業(yè)設(shè)計(jì)I摘要本文敘述了鞍鋼2150熱軋板帶鋼生產(chǎn)線精軋機(jī)換輥小車的設(shè)計(jì)情況,輥系小車的驅(qū)動(dòng)方式原為鏈條拖動(dòng)和液壓缸驅(qū)動(dòng)的棘輪機(jī)構(gòu)共同作用,步驟煩瑣,換輥時(shí)間長,改為動(dòng)力小車直接驅(qū)動(dòng)后,縮短了換輥時(shí)間,提高生產(chǎn)效率。本文概述了換輥小車的國內(nèi)外發(fā)展情況及其發(fā)展方向。主要進(jìn)行PC軋機(jī)換輥小車的設(shè)計(jì)。利用電機(jī)提供動(dòng)力，使減速器輸出軸上的鏈輪在固定鏈條上滾動(dòng)，從而使小車在軌道上運(yùn)動(dòng)。利用液壓缸使拉出鉤繞銷軸轉(zhuǎn)動(dòng)，進(jìn)行掛鉤或推鉤，從而使工作輥拉出或推進(jìn)。最終實(shí)現(xiàn)換輥工作。在設(shè)計(jì)過程中進(jìn)行了換輥小車的傳動(dòng)方案、工作原理、潤滑及環(huán)保與經(jīng)濟(jì)性分析，重點(diǎn)進(jìn)行換輥小車的結(jié)構(gòu)設(shè)計(jì)、工作參數(shù)的選擇、電動(dòng)機(jī)的選擇及計(jì)算，設(shè)計(jì)中主要零部件的計(jì)算及校核。在參閱相關(guān)資料并借鑒前人經(jīng)驗(yàn)的基礎(chǔ)上，通過對換輥小車的設(shè)計(jì)及分析，各項(xiàng)技術(shù)均滿足要求，本設(shè)計(jì)具有一定的實(shí)際應(yīng)用價(jià)值。關(guān)鍵詞：換輥；輥系小車；鏈條；棘輪機(jī)構(gòu)；動(dòng)力小車黑龍江工程學(xué)院本科生畢業(yè)設(shè)計(jì)IIABSTRACTInthispaper,therollingcardesignoffinishingmillonAnshansteel2150hot-rolledstripsteelplateproductionlinewaspresented.Accordingoriginaldesigned,rollchangingcarwasmovedbyachainsystemandaratchetsystem.Theprocesswastoocomplicatedanditspendsalotoftimeonrollerchanging.Afteritwasredesigned,rollerchangingtimewasshortenedandefficiencywashighlyimproved.Thispaperoutlinesthedevelopmentofdomesticandinternationalsituationoftherollingcaranditsdevelopmentdirection.ImainlydesignedrollingcarforPCmainrollermill.Itusedmotortoprovideelectricalpowersothatsprocketontheoutputshaftofreducercanrollonthesprocketfixedchain.Sorollingcarcouldmovealongtheorbit.Ituseshydrauliccylinderstopullhookaroundthepinrotation,orpushorpullhook,sothatpulledoutorpushintheworkroll.Rollerschangedworkcouldbeeventuallyrealized.Intheprocessofdesigningacar,thedrivenschemedesign,workingprinciplestatement,lubricationandenvironmentalprotectionandeconomicanalysishavebeendone.Thepapermainlyfocusesonthestructuraldesignofcar,thechoiceofmotorandworkingparameters,thecalculationandverificationofthemaincomponents.Onthebasisofconsultingtherelevantmaterialsandusingforefathersexperienceforreference,throughthedesignandanalysisofrollingcar,everyindicatorsreachesthedemands,thisdesignhasacertainvalueinactualusing.KEYWORDS：Rollchanging；Carofrollset；Chain；Ratchetsystem；Drivingcar黑龍江工程學(xué)院本科生畢業(yè)設(shè)計(jì)1目錄摘要.IABSTRACT.III第1章緒論.11.1換輥小車的概述.11.1.1換輥小車的用途.11.1.2換輥小車的類型.11.1.3換輥小車的動(dòng)力結(jié)構(gòu).21.2國內(nèi)外對換輥小車的研究.31.3課題的背景及意義.51.4本文主要研究工作.6第2章總體方案設(shè)計(jì)與選擇.72.1換輥小車的驅(qū)動(dòng)方案設(shè)計(jì)與選擇.72.1.1傳動(dòng)方案設(shè)計(jì).72.1.2電機(jī)的選擇.82.2鏈輪與液壓缸的選擇.82.2.1鏈輪的選擇.82.2.2液壓缸的選擇.82.3本章小結(jié).9第3章傳動(dòng)系統(tǒng)的設(shè)計(jì)計(jì)算.103.1原始數(shù)據(jù).103.2換輥小車所需驅(qū)動(dòng)力計(jì)算.103.3電機(jī)的選擇.113.3.1選擇電機(jī)的結(jié)構(gòu)形式.113.3.2選擇電機(jī)的容量.113.3.3電機(jī)的校核.123.4確定傳動(dòng)裝置的總傳動(dòng)比和分配傳動(dòng)比.133.4.1傳動(dòng)裝置總傳動(dòng)比.13黑龍江工程學(xué)院本科生畢業(yè)設(shè)計(jì)23.4.2分配減速器的各級傳動(dòng)比.133.4.3各軸的運(yùn)動(dòng)和動(dòng)力參數(shù).133.5本章小結(jié).14第4章主要零部件的選擇、設(shè)計(jì)和校核.154.1蝸輪蝸桿的設(shè)計(jì)與校核.154.1.1選擇蝸桿傳動(dòng)類型.154.1.2選擇材料.154.1.3按齒面接觸疲勞強(qiáng)度進(jìn)行設(shè)計(jì).154.1.4蝸桿與蝸輪主要幾何尺寸計(jì)算.174.2齒輪的設(shè)計(jì)與校核(一).194.2.1選定齒輪類型、精度等級、材料及齒數(shù).194.2.2按齒面接觸強(qiáng)度設(shè)計(jì).194.2.3按齒根彎曲強(qiáng)度設(shè)計(jì).224.2.4.幾何尺寸計(jì)算.234.3齒輪的設(shè)計(jì)與校核(二).244.3.1選定齒輪類型、精度等級、材料及齒數(shù).244.3.2按齒面接觸強(qiáng)度設(shè)計(jì).244.3.3按齒根彎曲強(qiáng)度設(shè)計(jì).274.3.4.幾何尺寸計(jì)算.284.4軸的設(shè)計(jì)及其校核.294.4.1選擇軸的材料并確定其機(jī)械性能.294.4.2軸上的功率4P,轉(zhuǎn)速4n和轉(zhuǎn)矩4T見(3.4.3).294.4.3求作用在齒輪上的力.294.4.4初步確定軸的最小直徑.304.4.5軸的結(jié)構(gòu)設(shè)計(jì).304.4.6求軸上的載荷.314.4.7按彎扭合成應(yīng)力校核軸的強(qiáng)度.334.4.8精確校核軸的疲勞強(qiáng)度.344.5滾動(dòng)軸承的選擇及其壽命計(jì)算.384.5.1滾動(dòng)軸承的選擇.384.5.2滾動(dòng)軸承的壽命計(jì)算.384.5.3滾動(dòng)軸承裝置的設(shè)計(jì).404