[優(yōu)秀畢業(yè)設(shè)計精品] 礦井提升機電控系統(tǒng)原理設(shè)計.doc

畢業(yè)設(shè)計（論文）I礦井提升機電控系統(tǒng)原理設(shè)計摘要我國礦井提升機大多是采用交流異步電機拖動，其電氣控制系統(tǒng)采用轉(zhuǎn)子串、切電阻調(diào)速，由繼電器-接觸器構(gòu)成邏輯控制裝置。本文以安全、可靠、高效、經(jīng)濟為出發(fā)點，以可靠性原則為依據(jù)，對礦井交流提升機電控系統(tǒng)進行研究設(shè)計，由可編程控制器(PLC)代替繼電器-接觸器構(gòu)成的邏輯控制裝置。其中簡單介紹了國內(nèi)外礦井提升機發(fā)展概況，提升機機械結(jié)構(gòu)、工作原理，分析了其技術(shù)經(jīng)濟性。對于PLC的控制原理及應(yīng)用做了一般性的介紹。詳述了提升機電控系統(tǒng)和調(diào)速原理，如：測速部分和保護部分。本文以TKD-NT單繩纏繞式礦井提升機為例，提出了研究設(shè)計方案，并且在實踐中成功實施。PLC電控系統(tǒng)實現(xiàn)了對提升過程的程序控制，精度高；實現(xiàn)了速度、電流以及矢量的數(shù)字交換等，對提升機進行閉環(huán)調(diào)節(jié)；實現(xiàn)行程、速度等重要參數(shù)及提升狀態(tài)的監(jiān)視；實現(xiàn)無觸點控制，壽命長，可靠性大大提高，具有良好的控制監(jiān)視系統(tǒng)；實現(xiàn)了顯示、記錄等有關(guān)數(shù)據(jù)的全部自動化。關(guān)鍵詞：礦井交流提升機，PLC，調(diào)速，電控技術(shù)研究畢業(yè)設(shè)計（論文）IITHEDESIGNOFELECTRICCONTROLSYSTEMBASEDONMINEELEVATORABSTRACTInChina,mineelevatorwhoseelectriccontrolsystemusesspeedregulationbymeansofstringingandslicingtherotorresistance,anditconstitutesthelogiccontroldevicebytherelayandcontactoradoptingthemeansofthedriveofACasynchronousmotorinmostcases.ThispaperwhichstudiesanddesignstheelectriccontrolsystemofACmineelevator,adoptingPLCwhichtakestheplaceofthelogiccontroldeviceconstitutedbytherelayandcontactortakesthesecurity,reliability,highefficiency,economyasastartingpoint,andtakesthereliabilityprincipleasthebasis.Thereinto,thispapergivesabriefintroductiononthedevelopmentofmineelevatorinhomeandabroad,itsframeworkandtheory,whiledoingsomeeconomicstudy.Then,itintroducesthetheoryandapplicationofPLCsimply.Ontheside,itgoesintoparticularsaboutelectriccontrolsystem,forexample,speedmeasurementandsafeguard.ThispapersetsTKD-NTelevatorforanexample,proposestheresearchanddesignplanwhichputsinpracticesuccessfully.TheelectriccontrolsystembasedonPLChascarriedouttheprocedurecontrolofhoistprocessandhighaccuracy,closed-cyclecontrolofmineelevatorthroughspeed,electriccurrentaswellasdigitalswitchingofvectorandsoon,themonitorofimportantparameterssuchasthedistanceoftravel,speed,thestateofhoist.Inaddition,thesystemalsohascarriedoutcontactlesscontrol,longlife-span,reliabilitygreatlyimproved,goodcontrolsupervisorysystemandcompletelyautomationofrelevantdatasdemonstration,recordingandsoon.KEYWORDS:ACmineelevator,PLC,speedregulation,electriccontroltechnologyresearch畢業(yè)設(shè)計（論文）III目錄前言.1第1章國內(nèi)外礦井提升機發(fā)展概述.21.1錯誤!未找到引用源。國外礦井提升機現(xiàn)狀.21.2我國礦井提升機電氣控制系統(tǒng)的現(xiàn)狀.2第2章提升機機械結(jié)構(gòu)及工作原理.42.1機械結(jié)構(gòu).42.2工作原理.5第3章串電阻調(diào)速系統(tǒng).73.1串電阻調(diào)速系統(tǒng)原理.73.2串電阻調(diào)速程序.8第4章提升機電控系統(tǒng)構(gòu)成.144.1引言.144.2主回路.154.3測速回路.164.4安全回路.164.5控制回路.184.5.1信號回路.184.5.2電機正反轉(zhuǎn)回路.184.5.3制動回路.194.5.4轉(zhuǎn)子電阻控制回路.194