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1、全套設(shè)計(jì)聯(lián)系QQ2947387549（任務(wù)書(shū)開(kāi)題報(bào)告說(shuō)明書(shū)CAD圖+SW/Proe/UG/CATIA圖等）挖掘機(jī)液壓系統(tǒng)設(shè)計(jì)摘要挖掘機(jī)中最重要的組成部分是挖掘機(jī)的整個(gè)液壓系統(tǒng)，挖掘機(jī)工作時(shí)的動(dòng)力控制系統(tǒng)是液壓系統(tǒng)。挖掘機(jī)多用于工作條件較為惡劣的環(huán)境，工作臂及底盤(pán)工作幅度較大，故此，要求挖掘機(jī)的液壓系統(tǒng)有良好的穩(wěn)定性，有較長(zhǎng)無(wú)故障時(shí)間。挖掘機(jī)的工作性能依賴(lài)于液壓系統(tǒng)的性能高低。挖掘機(jī)的發(fā)展隨著液壓技術(shù)的提升而不斷的提升，形成一種共生關(guān)系?，F(xiàn)今挖掘機(jī)技術(shù)的長(zhǎng)足發(fā)展是基于當(dāng)代液壓技術(shù)，同時(shí)也促進(jìn)了液壓技術(shù)的發(fā)展?；净芈泛洼o助回路是挖掘機(jī)液壓系統(tǒng)的主要組成。主要包含限壓、卸荷、緩沖、節(jié)流調(diào)速和節(jié)
2、流限速、行走限速、支腿順序、支腿鎖止和先導(dǎo)閥操縱等回路。它們不同組合構(gòu)成功能不盡相同的液壓系統(tǒng)。伴隨著需求的多樣化，液壓系統(tǒng)會(huì)變得復(fù)雜，滿(mǎn)足更多需求，操作更加人性化，效率得到提升，能量損耗減小，液壓系統(tǒng)的發(fā)展會(huì)使得挖掘機(jī)發(fā)揮出更好的功用。關(guān)鍵詞挖掘機(jī)；工作環(huán)境；液壓系統(tǒng)；基本回路Q(chēng)Q2947387549海量現(xiàn)成機(jī)械模具數(shù)控方向畢業(yè)設(shè)計(jì)課程設(shè)計(jì)承接定制QQ2947387549全套設(shè)計(jì)聯(lián)系QQ2947387549（任務(wù)書(shū)開(kāi)題報(bào)告說(shuō)明書(shū)CAD圖+SW/Proe/UG/CATIA圖等）ExcavatorhydraulicsystemdesignAbstractThemostimportantcom
3、ponentofexcavatoristhewholehydraulicsystemofexcavator.Thepowercontrolsystemofexcavatorishydraulicsystem.Excavatorsaremostlyusedinharshworkingconditions,andtheworkingarmandchassishavealargerworkingrange.Therefore,thehydraulicsystemofexcavatorsisrequiredtohavegoodstabilityandlongfailurefreetime.Thep
4、erformanceoftheexcavatordependsontheperformanceofthehydraulicsystem.Withthedevelopmentofhydraulictechnology,theexcavatorhasbeencontinuouslyimproved,formingasymbioticrelationship.Nowadays,therapiddevelopmentofexcavatortechnologyisbasedonmodernhydraulictechnology,anditalsopromotesthedevelopmentofhyd
5、raulictechnology.Thebasiccircuitandauxiliarycircuitarethemaincomponentsofexcavatorhydraulicsystem.Itmainlyincludespressurelimitingcircuit,unloadingloop,buffercircuit,throttlingspeedregulationandthrottlingspeedlimitloop,speedlimitcircuit,outriggersequenceloop,outriggerlockingloopandpilotvalvecontro
6、lloop.Theyvaryincompositiontoformahydraulicsystemwithvaryingfunctions.Withthedemandofdiversification,thehydraulicsystemwillbecomecomplicated,meettheneedsofmoreandmoreuser-friendlyoperation,improvetheefficiency,reduceenergyconsumption,thedevelopmentofthehydraulicsystemwillmakeexcavatorplayabetterfu
7、nction.KeywordsExcavatingmachinery,Workenvironment,Hydraulicsystem,BasiccircuitQQ2947387549海量現(xiàn)成機(jī)械模具數(shù)控方向畢業(yè)設(shè)計(jì)課程設(shè)計(jì)承接定制QQ2947387549全套設(shè)計(jì)聯(lián)系QQ2947387549（任務(wù)書(shū)開(kāi)題報(bào)告說(shuō)明書(shū)CAD圖+SW/Proe/UG/CATIA圖等）目錄摘要IAbstractII第1章緒論11.1課題研究背景及研
