[优秀毕业设计精品]液压升降机设计

错误未指定书签。专业错误未指定书签。作者姓名指导教师定稿日期2012年04月12日A2A0A1A3A4A5A6A0A1A4A5XXX机械工程系毕业设计（论文）任务书学生姓名专业班级矿山机电085（1）班设计论文题目液压升降机设计接受任务日期2011年5月1日完成任务日期2011年6月15日指导教师指导教师单位XXX设计论文内容目标通过本次论文设计培养学生对问题分析能力，提高学生对事故处理能力。从而达到对事故发生预见性分析处理事故于未发生。设计论文要求通过本次论文设计培养学生对问题分析能力，提高学生对事故处理能力。从而达到对事故发生预见性分析处理事故于未发生。论文指导记录5月1日接受任务；5月2日确定题目；5月3日查找相关资料；5月20日初稿完成；6月5日二稿完成；6月15日定稿参考资料1黄宏甲、黄谊、王积伟主编液压与气压传动北京机械工业出版社20012刘连山主编流体传动与控制北京人民交通出版社19833G5364G2045G5191、G18023G19059G7138主编液压气动G13007G13491设计G6175G1888北京机械工业出版A7A8A9A10A11A12A13A14A15A16A17A18A19A20A21A22A23A13A14A24A9A10A25A26A27A28A29A30A31A32A33A34A35A36A37A38A39A40A41A42A43A44A45A46A41A42A44A45XXX机械工程系毕业设计（论文）成绩表学生姓名专业班级矿山机电085（1）班设计论文题目液压升降机设计指导教师（G12626名）指导教师单位XXX指导教师G16792G16833G16792G19417成G13501G16792G19417教师G12626G4395年月日G12584G17789G16772G5417成G13501提问教师G12626G4395年月日G12584G17789G4579G13464G5859见G12584G17789成G13501G12584G17789G4579G13464G13464G19283G12626G4395年月日A47A48A49A50A51A52A53A49A50A51A52A54A55A56A57A58A59A60A61A623摘要本次设计G11352题目G7171G1852液压升降机G11352设计，G4439主G16213G2265G6336G989G1022G18108分G11352G1881G4493主机G11352设计，液压G13007G13491G11352设计，控制G18108分G11352设计。G3324本设计G1025G4570液压G13007G13491G11352设计G1582G1038主G16213G11352G1881G4493G17839G15904设计，主机G11352设计G7693G6466升降G2500工G1328G7114G11352主G16213工G1328G18108G1226G17839G15904G3835G8022G11352G1284G12651。液压G13007G13491G11352设计G2460主G16213G2265G6336G1114动力G9316，控制G1815G1226，G6203G15904G1815G1226，G17753G2173G1815G1226G11352设计。控制G18108分G11352设计G1038G19480G2164G18108分，主G16213设计控制电G17347G3282。关键字升降机液压系统执行元件A63A64A65A66A67A68A69A65A66A67A68A70A71A72A73A74A75A76A77A784ABSTRACTTHISDESIGNTOPICISTHEENTIREPLUNGERELEVATORDESIGN,ITMAINLYINCLUDESTHREEPARTIALCONTENTSHOSTCOMPUTERDESIGN,HYDRAULICSYSTEMDESIGN,CONTROLSECTIONDESIGNMAKESINTHISDESIGNTHEHYDRAULICSYSTEMDESIGNFORTHEMAINCONTENTCARRIESONTHEDESIGN,TIMETHEHOSTCOMPUTERDESIGNBASISSHENGJIANGTAIWORKMAINWORKINGPARTCARRIESONTHEGENERALESTIMATETHEHYDRAULICSYSTEMDESIGNHASMAINLYINCLUDEDTHEPOWERSUPPLY,CHECKSTHEPART,THEFUNCTIONALELEMENT,AUXILIARYPARTDESIGNTHECONTROLSECTIONDESIGNFORSUPPLEMENTSTHEPART,MAINLYDESIGNSTHECHECKCIRCUITDIAGRAMKEYWORDSELEVATORHYDRAULICSYSTEMFUNCTIONALELEMENTA79A80A81A82A83A84A85A81A82A83A84A86A87A88A89A90A91A92A93A945目录摘要3ABSTRACT4第1章绪论7第2章液压升降机的设计921升降机G1038G1852液压G13007G13491，相关工G14414G2454G6980G1038922工G1929分析923升降机机械G13479G7512G5430G5347G2656G17828动机理924升降机G11352机械G13479G7512G2656G19658G1226设计1025升降机G13007G13491G11352设计2226G6203G15904G1815G1226G17907G5242G2656G17745G146672327G17907G5242G2656G17745G14667计G1265123第3章液压系统方案的拟定2731G13007G13491压力G11352初G8505确定2732液压G6203G15904G1815G1226G11352主G16213G2454G69802733G8845G17347G5502G10627G7053G5347G11352分析G2656G17885G63333234G5332G5347G13007G13491G8845G17347G13464G2524G7053G5347G11352分析G17885G63333335G16855G17907G7053G7708G11352G17885G63333336液压G13007G13491G2419理G3282G11352确定3437G8845G8905G2656电机G17885G63333438控制G19412G11352G17885G110043839G12661G17347，过G9400G3132，G1866G1194G17753G2173G1815G1226G11352G17885G6333计G1265140310液压G1815G1226G11352连接42第4章油箱及液压缸的设计44A95A96A97A98A99A100A101A97A98A99A100A102A103A104A105A106A107A108A109A110641G8845G12677G11352G4493积4442G13580G125824643G8975G3634G2656G8975G3634G74505044G8975G3634G7450导G2533G38835145G6502气G16025G136345246G17839出G8845G2487G4622G4556G11352确定5247G4506G4565G13479G7512G11352设计G17885G63335348性能G20576G1265153总结55致谢56参考文献57A111A112A113A114A115A116A117A113A114A115A116A118A119A120A121A122A123A124A125A1267第1章绪论G17837次G8617业G7171学G7669G1038G6117G1216G8611G1022工G12197学生G4445G6502G11352G980次G4466G17353性G11352总G13479，使就业前G11352G980次G3835练兵，G7171对G8611G1022学生G989年来所学知识G11352总体检测，使G6117G1216G1038G17839入工厂工G1328G1582好G1114准备。本次设计G11352主G16213任务G7171液压升降机G11352设计，升降机G7171G980种升降性能好，适G11004范围广G11352货物举升机G7512，可G11004于生产流水线高G5242差设备之间G11352货物G17828送，物料上线，下线，共G1226G16025配G7114G18108G1226G11352举升，G3835型机库上料，下料，仓储G16025卸等场所，与叉车等车辆配G3883使G11004，以及货物G11352快G17907G16025卸等。G4439采G11004G1852液压G13007G13491控制，采G11004液压G13007G13491有以下特点（1）G3324同等G11352体积下，液压G16025G13634能比G1866G1194G16025G13634产生更多G11352动力，G3324同等G11352功率下，液压G16025G13634G11352体积G4579，重量轻，功率G4506G5242G3835，G13479G7512紧凑，液压马达G11352体积G2656重量只有同等功率电机G1135212。（2）液压G16025G13634工G1328比较G5191稳，由于重量轻，惯性G4579，反应快，液压G16025G13634易于G4466现快G17907启动，制动G2656频繁G11352换G2533。（3）液压G16025G13634可G3324G3835范围G1881G4466现无级G16855G17907，（G16855G17907范围可达到2000），还可以G3324G17828G15904G11352过程G1025G4466现G16855G17907。（4）液压传动易于G4466现自动化，G1194对液体压力，流量G2656流动G7053G2533易于G17839G15904G16855解或控制。（5）液压G16025G13634易于G4466现过G17745保护。（6）液压G1815G1226以G4466现G1114标准化，G13007列化，通G11004化，压也G13007G13491G11352设计制造G2656使G11004都比较G7053便。当然液压技术还存G3324许多缺点，例如，液压G3324传动过程G1025有较多G11352能量损失，液压传动易泄露，不仅污染工G1328场地，限制G1866应G11004范围，可能引起失火事故，而且影响G6203G15904G18108分G11352G17828动G5191稳性及正确性。对G8845温变化比较敏感，液压G1815G1226制造精G5242G16213求较高，造价G7126G17161，出现故G19568不易找到G2419G3252，G1306G3324G4466G19481G11352应G11004G1025，可以通过有G6940G11352G6526G7057来G1955G4579不G2045G3252G13044G5114来G11352影响。G6117G3281G11352液压技术G7171G3324G7044G1025G3281成G12447以G2530G6177发G4649起来G11352。自从1952年G16809制出G6117G3281G12544G980G1022液压G1815G1226G252G252G21843G17730G8905起，G17816G1182G3835G14280G13475G2394G1114G1235制G3818G3281产G2709，自G15904设计G5332发A127A128A129A130A131A132A133A129A130A131A132A134A135A136A137A138A139A140A141A1428G2656引G17839G9052化提高等G1972G1022G19466G8585。G17839年来，通过技术引G17839G2656G12197G11752G6927关，产G2709水G5191也G5483到G1114提高，G11752制G2656生产出G1114G980G1135G1867G1820G17839水G5191G11352产G2709。目前，G6117G3281G11352液压技术G5062G13475能G3827G1038G1930G18341、工程机械、机G5214、化工机械、G13454G13467机械等G18108G19388提G1391G2709种比较G21796G1852G11352产G2709。G1306G7171，G6117G3281G11352液压技术G3324产G2709G2709种、G6980量及技术水G5191上，与G3281G19481水G2709以及主机G15904业G11352G16213求还有不G4581差G17329，G8611年还G19668G16213G17839G2487G3835量G11352液压G1815G1226。G1182G2530，液压技术G11352发G4649G4570G2533G11540G980下G7053G2533（1）提高G1815G1226性能，G2031制G7044型G1815G1226，体积不G7041G13565G4579。（2）高G5242G11352G13464G2524化，G19610成化，G8181G3371化。（3）G2656G5506电G4388技术G13479G2524，G17220G2533G7246能化。总之，液压工业G3324G3281民G13475G8994G1025G11352比重G7171G5468G3835G11352，G1194G2656气动技术G5132G11004来G15925量G980G1022G3281G4490G11352工业化水G5191。本次设计G1017G7696G6365G10043指导G16213求G17839G15904，G1866间G5483到G13781师G2656同学G1216G11352G5122G2173，G3324G8504G2533G1194G1216G15932G12046G16814G6382G11352G16886G5859。由于本人水G5191G2656知识所限，G1866G1025G19181G16835G3324所G19602G1825，G5703G7407G13781师G1116以指导G1474正。A143A144A145A146A147A148A149A145A146A147A148A150A151A152A153A154A155A156A157A1589第2章液压升降机的设计21升降机为全液压系统，相关工艺参数为G20081定G17745G146672500KGG7380G1314高G5242200MMG7380G3835起升高G52421500MMG7380G3835高G52421700MMG5191G2500G4622G45564000X2000MM电G9316380V,50HZ22工况分析本升降机G7171G980种升降性能好，适G11004范围广G11352货物举升机G7512，G2656G11004于生产流水线高G5242差设备之间G11352货物G17828送，物料上线、下线。工G1226G16025配G7114G16855G14422工G1226高G5242，高出G13485料机G17828送，G3835型G18108G1226G16025配G7114G11352G18108G1226举升，G3835型机库上料、下料。仓储，G16025卸场所，与叉车等G16025G17828车辆配G3883使G11004，G2375货物G11352快G17907G16025卸等。G16825升降G2500主G16213有G1016G18108分G13464成机械G13007G13491G2656液压G13007G13491。机械机G7512主G16213起传G17894G2656G6915G6757G1328G11004，液压G13007G13491主G16213提G1391动力，G1194G1216G1016G13785共同G1328G11004G4466现升降机G11352功能。23升降机机械结构形式和运动机理231升降机的运动机理升降机G11352G3534本G17828动机理如下G3282所G12046A159A160A161A162A163A164A165A161A162A163A164A166A167A168A169A170A171A172A173A17410G328221G1016G6915G7562G3324O点G19140接，G6915G75621上下G12483分G2047G3278定G3324上、下G7507G19766上，通过G8975G3634G7450G11352G1292G13565G2656G19140接点OG11352G1328G11004G4466现货物G11352举升。G7693G6466以上分析，升降机G11352G17828动过程可以G2477G17860如下G6915G75622、3G1038升降机机G7512G1025G11352G3278定G6915G7562，G1194G1216与G5225G7507G11352G19140接点23,OOG1582不完G6984G11352G3290G2620G17828动，G6915G75621、4G1038G8975动G6915G7562，G1194G1216G3324液压G13580G11352G1328G11004下由G7380初G11352G1972G1058水G5191G10378G5589G17892G9188G2533G2530来G11352G1554G7024位G13634G17828动，G3324通过G6915G7562之间G11352G13490G2524点G5114动2、3也不G7041G2533G1554G7024位G13634G17828动，以使升降机升降。24升降机的机械结构和零件设计G7693G6466升降G2500G11352工G14414G2454G6980G2656G1194G11352G3534本G17828动机理来确定G6915G75621、2、3、4G11352G19283G5242G2656G6142G19766G5430G10378。23OO之间G11352G17329G12175G2656液压G13580G11352工G1328G15904程。设23OOX01XM,G2375G6915G7562G2656地G7507垂直G7114G11352高G5242应G3835于15M,G17837样G6177能保证G1866G7380G3835升降高G5242达到15M，G1866G17828动过程G1025任G5859G1016G1022位G13634G11352G12046G5859G3282G15932G12046如下A175A176A177A178A179A180A181A177A178A179A180A182A183A184A185A186A187A188A189A19011N1NM1MO1OB1BC1CAG328222设G6915G75621、2G26563、4都G3324G1866G1025点处G13490G2524，液压G13580顶G12483与G6915G7562G13490G2524点G17329G12175G1025点G1038T,G7693G6466G1866水G5191位G13634G11352G1972何位G13634关G13007可G5483404XT50工作压力P（MPA）57由于G16825液压G13580G11352推力G2375G10313引力G103810KN，G7693G6466上G15932，可以初G8505确定液压G13580G11352工G1328压力G1038P2MPA。32液压执行元件的主要参数321液压缸的作用力液压G13580G11352G1328G11004力及G7114液压G13580G11352工G1328G7171G11352推力或G6301力，G16825升降G2500工G1328G7114液压G13580产生G2533上G11352推力，G3252G8504计G12651G7114只取液压G8845G17839入无G7450G14120G7114产生G11352推力F2CMPD4PIG5347G1025P液压G13580G11352工G1328压力PA取P520310PADG8975G3634G1881G5464M009MCM液压G13580G11352G6940率095代入G6980G6466F3259010203100954PIF103KNG2375液压G13580工G1328G7114产生G11352推力G1038103KN。A229A230A231A232A233A234A235A231A232A233A234A236A237A238A239A240A241A242A243A24428G1593232回路特点进油路调速进油路调速回油装被压阀回油路调速背压值12X1025X10610X10系统被压经验数据322缸筒内径的确定G16825液压G13580宜G6365G10043推力G16213求来计G12651G13580G12582G1881G13475，计G12651G5347如下G16213求G8975G3634无G7450G14120G11352推力G1038FG7114，G1866G1881G5464G10384CMFDPPIG5347G1025DG8975G3634G7450直G5464G13580G12582G1881G13475MF无G7450G14120推力NP工G1328压力MPACM液压G13580机械G6940率095代入G6980G6466D3410102100950083MD83MM取G3290G6984值G1038D90MM液压G13580G11352G1881G5464，G8975G3634G11352G11352G3818G5464G16213取标G8892值G7171G3252G1038G8975G3634G2656G8975G3634G7450还G16213有G1866G4439G11352G19658G1226相互配G2524，如G4506G4565G3292等，而G17837G1135G19658G1226G5062G13475标准化，有专G19388G11352生产厂G4490，故G8975A245A246A247A248A249A250A251A247A248A249A250A252A253A254A255A4A0A1A2A929G3634G2656液压G13580G11352G1881G5464也应G16825标准化，以便G17885G11004标准G1226。323活塞杆直径的确定（1）G8975G3634G7450直G5464G7693G6466受力情G1929G2656液压G13580G11352G13479G7512G5430G5347来确定受G6301G71140305DD受压G71145PMPA0305DD5P7MPA0507DDP7MPA07DDG16825液压G13580G11352工G1328压力G1038G1038P2MPA5MPA,取05,45DDDCM。（2）G8975G3634G7450G11352强G5242计G12651G8975G3634G7450G3324稳定情G1929下，如G7536只受推力或G6301力，可以G17829G1296G11352G11004直G7450承受G6301压G17745G14667G11352简单强G5242计G12651G1856G5347G17839G1590462104FDPIG5347G1025FG8975G3634G7450G11352推力NDG8975G3634G7450直G5464M材料G11352许G11004应力MPAG8975G3634G7450G1100445号钢,340,25SSMPANN代入G6980G646636321010104314451063MPAG8975G3634G7450G11352强G5242满足G16213求。（3）稳定性G7669核G16825G8975G3634G7450不受偏心G17745G14667，G6365G10043等G6142G19766G8873，G4570G8975G3634G7450G2656G13580体G16282G1038G980体，G1866G13466G19283比G1038LMNKG7114，22KNEJFLPIA3A5A6A7A8A10A11A6A7A8A10A12A13A14A15A16A17A18A19A2030G3324G16825设计及G4445G16025G5430G5347G1025，液压G13580G1016G12483采G11004G19140接，G1866值分G2047G10381,85,1260NMLMM4JDKAG4570上G17860值代入G5347G1025G5483LMNK故G7669核采G11004G11352G5347G4388G103822KNEJFLPIG5347G1025N1G4445G16025G5430G5347G13007G6980EG8975G3634G7450材料G11352G5389性G8181量钢材取112110EPAJG8975G3634G7450G6142G19766G11352转动惯量464DJPIL计G12651G19283G5242106M代入G6980G64662113423142110314451064106KF371KNG1866稳定条G1226G1038KKFFNG5347G1025KN稳定G4445G1852G13007G6980，G980般取KN24取KN3F液压G13580G11352G7380G3835推力N代入G6980G64663713KKFN123KN故G8975G3634G7450G11352稳定性满足G16213求。324液压缸壁厚，最小导向长度，液压缸长度的确定3241液压缸壁厚的确定A21A22A23A24A25A26A27A23A24A25A26A28A29A30A31A32A33A34A35A3631液压G13580G3733厚G2460G13479G7512G2656工G14414G16213求等确定，G980般G6365G10043G15192G3733G12582计G12651，G3733厚由下G5347确定2YPDG5347G1025D液压G13580G1881G5464MG13580体G3733厚CMYP液压G13580G7380高工G1328压力PAG980般取YP（1213）PG13580体材料G11352许G11004应力钢材取100110MPA代入G6980G6466661321090117210010CM考虑到液压G13580G11352G2164工G16213求，G4570G1866G3733厚适当G2164厚，取G3733厚3MM。3242最小导向长度G8975G3634G7450G1852G18108G3818G1292G7114，从G8975G3634G6915G6757G19766重点到导G2533滑动G19766G1025点G11352G17329G12175G1038G8975G3634G11352G7380G4579导G2533G19283G5242H，如下G3282所G12046，如G7536G7380G4579导G2533G19283G5242过G4579，G4570会使液压G13580G11352初G3999G6388G5242G3698G3835，影响G1866稳定性，G3252G8504设计G7114G5529G20047保证有G7380G4579导G2533G19283G5242，对于G980般G11352液压G13580，液压G13580G7380G3835G15904程G1038L，G13580G12582直G5464G1038DG7114，G7380G4579导G2533G19283G5242G1038202LDHG237553090715202HCM取G103872CMG8975G3634G11352宽G5242G980般取0601BD，导G2533G3883滑动G19766G19283G5242A，G3324D80MMG7114，取A0610D，G3324D80MMG7114，取A0610D，当导G2533G3883G19283G5242不G3827G7114，不宜过分G3698G3835AG2656B，G5529G16213G7114可G3324导G2533G3883G2656G8975G3634之间G2164G980G19560G3883，G19560G3883G11352G19283G5242由G7380G4579导G2533G19283G5242H确定。325液压缸的流量液压G13580G11352流量G1325G13580G5464G2656G8975G3634G11352G17828动有关G13007，当液压G13580G11352G1391G8845量Q不变G7114，除去G3324G5430程G5332G3999G2656G13479G7475G7114有G980G2164G17907G2656G1955G17907G19466G8585G3818，G8975G3634G3324G15904程G11352G1025间G3835多G6980G7114间保G6357G5670定G17907G5242MV，液压G13580G11352流量可以计G12651如下A37A38A39A40A41A42A43A39A40A41A42A44A45A46A47A48A49A50A51A5232CVVAQG5347G1025AG8975G3634G11352有G6940工G1328G19766积对于无G7450G1412024ADPICVG8975G3634G11352G4493积G6940率采G11004G5389G5430G4506G4565G3292G7114CV1，采G11004G8975G3634G10627G7114CV098MAXMAXCVAVQMAXVG1038液压G13580G11352G7380G3835G17828动G17907G5242M/S代入G6980G64662314090132560516/MIN0984MAXQL2MIN31409010660413/MIN0984QLG2375液压G13580以G1866G7380G3835G17907G5242G17828动G7114，所G19668G16213G11352流量G1038516/MINL，以G1866G7380G4579G17828动G17907G5242G17828动G7114，所G19668G16213G11352流量G1038413/MINL。液压G13007G13491G7053G7708G7171G7693G6466主机G11352工G1328情G1929，主机对液压G13007G13491G11352技术G16213求，液压G13007G13491G11352工G1328条G1226G2656G10627G3671条G1226，以成本，G13475G8994性，G1391货情G1929等G16844多G3252G13044G17839G15904G1852G19766G13520G2524G11352设计G17885G6333，从而G6323G16758出G980G1022各G7053G19766比较G2524理G11352，可G4466现G11352液压G13007G13491G7053G7708。G1866G1867体G2265G6336G11352G1881G4493有G8845G17347G5502G10627G7053G5347G11352分析与G17885G6333，G8845G9316G5430G5347G11352分析G2656G17885G6333，液压G3250G17347G11352分析，G17885G6333，G2524成，液压G13007G13491G2419理G3282G11352G6323定33油路循环方式的分析和选择G8845G17347G5502G10627G7053G5347可以分G1038G5332G5347G2656G19393G5347G1016种，G1866各自特点及相互比较见下G15932A53A54A55A56A57A58A59A55A56A57A58A60A61A62A63A64A65A66A67A6833G1593231A69A70A71A72A73A74A75A76A77A78A79A80A81A82A83A84A85A86A87A88A89A90A91A92A93A94A95A94A96A97A98A99A100A101A102A96A103A96A104A99A100A105A106A107A108A101A102A109A110A111A112A113A114A115A107A108A116A117A96A103A99A106A118A119A120A90A121A122A123A124A125A126A127A128A129A130A131A132A96A133A106A134A135A136A137A138A130A139A89A90A99A106A91A92A136A137A138A130A139A91A92A99A105A140A141A101A142A143A144A145A94A114A115A107A108A116A117A96A146A99A147A148A120A90A121A122A133A124A149A125A126A127A128A129A130A131A132A123A96A150A99A100A101A142A151A152A131A132A133A96A150A99A153A106A154A125A155A101A156A157A142A107A125A158A159A160A161A92A162A99A89A90A163A91A92A151A164A165A161A92A159A160A130A166A159A167A168A159A99A169A170A171A172A130A173A174A175A176A177A178A179A175A176A177A180A181A182G8845G17347G5502G10627G7053G5347G11352G17885G6333主G16213取G1927于液压G13007G13491G11352G16855G17907G7053G5347G2656G6967热条G1226。比较上G17860G1016种G7053G5347G11352差G5334，再G7693G6466升降机G11352性能G16213求，可以G17885G6333G11352G8845G17347G5502G10627G7053G5347G1038G5332G5347G13007G13491，G3252G1038G16825升降机主机G2656液压G8905G16213分G5332G4445G16025，G1867有较G3835G11352G12366间存G6930G8845G12677，而且G16213求G16825升降机G11352G13479G7512G4625可能简单，G5332G3999G13007G13491刚好能满足上G17860G16213求。34开式系统油路组合方式的分析选择当G13007G13491G1025有多G1022液压G6203G15904G1815G1226G7114，G5332G3999G13007G13491G6365G10043G8845G17347G11352不同连接G7053G5347G2460可以分G1038G1030联，并联，G10432联，以及G4439G1216G11352G13464G2524复联等。G1030联G7053G5347G7171除G1114G12544G980G1022液压G1815G1226G11352G17839G8845G2487G2656G7380G2530G980G1022G6203G15904G1815G1226G11352G3250G8845G2487分G2047与液压G8905G2656G8845G12677相连接G3818，G1866G1325液压G6203G15904G1815G1226G11352G17839，出G8845G2487G1393次相连，G17837种连接G7053G5347G11352特点G7171多G1022液压G1815G1226同G7114动G1328G7114，G1866G17907G5242不G19555G3818G17745G14667变化，故轻G17745G7114可多G1022液压G6203G15904G1815G1226同G7114动G1328。35调速方案的选择G16855G17907G7053G7708对主机G11352性能起G1927定G1328G11004，G17885G6333G16855G17907G7053G7708G7114，应G7693G6466液压G6203G15904G1815G1226A183A184A185A186A187A188A189A185A186A187A188A190A191A192A193A194A195A196A197A19834G11352负G17745特性G2656G16855G17907范围及G13475G8994性等G3252G13044G17885G6333。G5132G11004G11352G16855G17907G7053G7708有G989种G14422流G16855G17907G3250G17347，G4493积G16855G17907G3250G17347，G4493积G14422流G16855G17907G3250G17347。本升降机采G11004G14422流G16855G17907G3250G17347，G2419G3252G7171G16825G16855G17907G3250G17347有以下特点承G17745能力好，成本G1314，G16855G17907范围G3835，适G11004于G4579功率，轻G17745或G1025G1314压G13007G13491。36液压系统原理图的确定初G8505G6323定液压G13007G13491G2419理G3282如下所G12046；见下G3282A199A200A201A202A203A204A205A206A199A207A199A199A199A204A199A205A199A208A199A206A199A200A199A201A208A199A202A199A203G32823137油泵和电机选择371泵的额定流量和额定压力G8905G11352流量应满足G6203G15904G1815G1226G7380高G17907G5242G16213求，所以G8905G11352G17767出流量应G7693G6466G13007G13491所G19668G16213G11352G7380G3835流量G2656泄G9443量来确定MAXPQKQNG5347G1025PQG8905G11352G17767出流量/MINLKG13007G13491泄G9443G13007G6980G980般取K1113A209A210A211A212A213A214A215A211A212A213A214A216A217A218A219A220A221A222A223A22435MAXQ液压G13580G4466G19481G19668G16213G11352G7380G3835流量/MINLNG6203G15904G1815G1226G1022G6980代入G6980G6466115164227/MINPQL对于工G1328过程G1025G3999终G11004G14422流G19412G16855G17907G11352G13007G13491，G3324确定G8905G11352流量G7114，应再G2164上G9334流G19412G11352G7380G4579G9334流量，G980般取3/MINL2273257/MINPQLG8905G11352工G1328压力应G16825G7693G6466液压G13580G11352工G1328压力来确定，G2375MAXPPPPG5347G1025PPG8905G11352工G1328压力PAMAXPG6203G15904G1815G1226G11352G7380高工G1328压力PAPG17839G8845G17347G2656G3250G8845G17347总G11352压力损失。初G12651G7114，G14422流G16855G17907G2656比较简单G11352G8845G17347可以取0205MPA,对于G17839G8845G17347有G16855G17907G19412G2656G12661G17347比较复杂G11352G13007G13491可以取0515MPA。代入G6980G646620525PPMPA考虑到液压G13007G13491G11352动G5589压力及G8845G8905G11352使G11004G4563G2641，通G5132G3324G17885G6333G8845G8905G7114，G1866G20081定压力比工G1328压力PPG38352560，G2375G8905G11352G20081定压力G10383125MPA40MPA，取G1866G20081定压力G10384MPA。372电机功率的确定（1）液压G13007G13491G4466G19481G19668G16213G11352G1