挖掘机工作装置结构设计

theirownconditionstodevelopthecorrectroad,themaximumtoavoidinvestmentrisk,gainprofit.(three)vigorouslypromotethebrand.Toestablishbrandawareness,awarenessoftheuseofbrand,brandvalue,brandacquisitionperformance,enhancethecompetitivestrength.Concentratedmanpower,carefulplanning,packagingandpublicityofanumberofunique,marketinfluenceandcoverageofthebrand,theimplementationofkeybreakthroughs,toenhancethecompetitivestrength,walkingbusinessroadthecompetitionofalienationandcharacteristics,thepursuitofstabilityanddevelopmentofthemarket.(four)topromotetheintegrationofresources.Tofurtherbroadentheirhorizons,effectiveintegrationofresourceswithinthegroup,thecityresources,otherindustriesandregionalresources,mutualtrust,mutualbenefit,seekingwin-winprinciple,intheframeworkofnationalpoliciesandregulations,strictinspectionandargumentation,legalconsultation,examinationandapprovalprocedures,strictregulationofeconomicactivities,attractinjectionthesocialinvestmenttotheindustrygroup,toachieveleveragingthedevelopment,ensurethatthevalueofstate-ownedassets.(five)tostrengthentheconstructionmanagementpersonnel.Strengthenthemanagementofeducationandtrainingofcadresandworkersoftheexistingbusiness,firmlyestablishtheconceptofthemarket,enhancethesenseofcrisistoadapttomarketcompetition,thesenseofurgency,improvetheabilitytorespondtomarketcompetition,improvemanagementandoperationofthemarket.Atthesametime,accordingtotheneedofindustrialdevelopment,vigorouslytheintroductionofhigh-qualitymanagementmanagementpersonnel,andstrivetobuildahigh-qualityprofessionalmanagementteam,hardwork,andpromotetheentireworkforceknowledgestructure,agestructure,structureoptimizationandupgradingability,enhancecorecompetitiveness,adapttotheneedofmarketcompetition.(six)seriouslystudythepolicyforpolicy.SeriousresearchaboutsocialsupportthedevelopmentofculturalundertakingsinthecountryandtheXXpolicy,especiallythepolicyofindustrialdevelopment,financialinvestmentpolicy,financialpolicyandtaxpolicy,andactivelyseekpolicy,projectsandfunds,enterpriseandindustrygroupmissiontopromoteleapfrogdevelopment.1前言挖掘机在国民经济建设的许多行业被广泛地使用，如工业与民用建筑、农田改造、交通运输、矿山采掘、水利电气工程、以及现代化军事工程等等行业的机械化施工中。根据统计，一般的工程施工中约有60%的土方量、露天矿山中80%的剥离量和采掘量是使用挖掘机来完成的。在上世际末，随着我国经济的持续发展和基础建设投入的加大，对挖机的需求加大。进口挖机急剧上升。另外国外著名产家纷纷到国内合资或独资建厂，主要有小松山推、合肥日立、卡特徐州、成都神钢、常州现代、大宇重工等，国外产家的进口或合资的销售额占到国内总销售额的70%～80%。合资产品的主要型号有：小松山推PC系列、合肥日立ZX系列、卡特徐州320B系列、成都神钢SK系列、常州现代R系列、大宇重工DH系列。近年来，随着我国深入地进行基础建设和挖掘机在建设中被广泛地应用，挖掘机的市场前景非常广泛，因此很有必要积极的发展适合我国国情的挖掘机。然而在挖掘机中工作装置是十分重要的组成部分，对其研究和设计是对整机开发的基础。单斗液压挖掘机工作装置是一个较复杂的空间机构，国内外对其机构、运动分析和结构参数优化设计方面都作了大量的研究，其中的许多技术已经很成熟了。而关于单斗液压挖掘机有关书籍也很多，这些书籍从不同角度对工作装置的设计进行了阐述。。theirownconditionstodevelopthecorrectroad,themaximumtoavoidinvestmentrisk,gainprofit.(three)vigorouslypromotethebrand.Toestablishbrandawareness,awarenessoftheuseofbrand,brandvalue,brandacquisitionperformance,enhancethecompetitivestrength.Concentratedmanpower,carefulplanning,packagingandpublicityofanumberofunique,marketinfluenceandcoverageofthebrand,theimplementationofkeybreakthroughs,toenhancethecompetitivestrength,walkingbusinessroadthecompetitionofalienationandcharacteristics,thepursuitofstabilityanddevelopmentofthemarket.(four)topromotetheintegrationofresources.Tofurtherbroadentheirhorizons,effectiveintegrationofresourceswithinthegroup,thecityresources,otherindustriesandregionalresources,mutualtrust,mutualbenefit,seekingwin-winprinciple,intheframeworkofnationalpoliciesandregulations,strictinspectionandargumentation,legalconsultation,examinationandapprovalprocedures,strictregulationofeconomicactivities,attractinjectionthesocialinvestmenttotheindustrygroup,toachieveleveragingthedevelopment,ensurethatthevalueofstate-ownedassets.(five)tostrengthentheconstructionmanagementpersonnel.Strengthenthemanagementofeducationandtrainingofcadresandworkersoftheexistingbusiness,firmlyestablishtheconceptofthemarket,enhancethesenseofcrisistoadapttomarketcompetition,thesenseofurgency,improvetheabilitytorespondtomarketcompetition,improvemanagementandoperationofthemarket.Atthesametime,accordingtotheneedofindustrialdevelopment,vigorouslytheintroductionofhigh-qualitymanagementmanagementpersonnel,andstrivetobuildahigh-qualityprofessionalmanagementteam,hardwork,andpromotetheentireworkforceknowledgestructure,agestructure,structureoptimizationandupgradingability,enhancecorecompetitiveness,adapttotheneedofmarketcompetition.(six)seriouslystudythepolicyforpolicy.SeriousresearchaboutsocialsupportthedevelopmentofculturalundertakingsinthecountryandtheXXpolicy,especiallythepolicyofindustrialdevelopment,financialinvestmentpolicy,financialpolicyandtaxpolicy,andactivelyseekpolicy,projectsandfunds,enterpriseandindustrygroupmissiontopromoteleapfrogdevelopment.2总体方案设计2.1工作装置构成1-斗杆油缸；2-动臂；3-油管；4-动臂油缸；5-铲斗；6-斗齿；7-侧板；8-连杆；9-曲柄：10-铲斗油缸；11-斗杆.图2-1工作装置组成图图2-1为液压挖掘机工作装置基本组成及传动示意图，如图所示反铲工作装置由铲斗5、斗杆11、连杆9、动臂2、以及1,4,10等三组相应的液压油缸组成。由于动臂得下铰点铰与转台相连，通过动臂油缸的伸缩，使动臂以及整个工作装置都围绕动臂下铰点来转动。而斗杆靠斗杆缸使斗杆围绕动臂的上铰点摆动，相似的铲斗也铰接于斗杆得前端，依靠铲斗油缸得伸缩来时铲斗围绕斗杆转动。在挖掘作业时，通过驱动回转马达使转台转动，从而令工作装置回转到正确的挖掘位置，同时操纵动臂油缸的无杆腔进油使液压油缸收缩，动臂下降到铲斗接触地面以后