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1、主讲：刘军士speaker:Liujunshi液压挖掘机液压挖掘机液压挖掘机培训教材Hydraulicexcavatorstrainingmaterialswww.sanygroup.com一概论generalIntroduction1定义：挖掘机是一种主要用于开挖土石方的施工机械。Definition:Anexcavatorisusedintheexcavationofearthandconstructionmachinery2工作过程：它是用铲斗上的斗齿切削土壤并装入斗内，装满土后提升铲斗并回转到卸土地点卸土，然后再使转台回转、铲斗下降到挖掘面，进行下一次挖掘。W
2、orkingScoop:Itusesthetoothofthebuckettocutsoilandpackedinsidethebucket.Fillthebucketwithsoilandupgradebacktothepointofdumping,andthenrotatetheplatform,dropthebuckettothetapsurface,thenthenextexcavation.3用途：挖掘机在建筑、筑路、水利、电力、采矿、石油、天然气管道铺设和军事工程中被广泛地使用。Excavatorsuses:inbuildingroads,water,po
3、wer,mining,oilandgaspipelinelayingprojecthasbeenthewidespreaduseofthemilitary.SANYGROUPWWW.SANYGROUP.COM4主要作业对象：挖掘机主要用于筑路工程中的路基开挖，建筑工程中开挖基础，水利工程中开挖沟渠、运河和疏浚河道，在采石场、露天开采等工程中剥离和矿石的挖掘等。据统计，工程施工中约60％的土石方量是靠挖掘机完成的。Mainoperatingtargetformajorhighwayprojects:theexcavatorusedinsubgradeexcavation
4、,constructionexcavationfoundationExcavationofwaterditches,canalsandriverdredging,quarries,opencastminingprojectssuchasstrippingandoremining.Accordingtostatistics,about60%ofearthworkconstructioniscompletedbytheexcavator5其它用途：挖掘机更换工作装置后还可进行浇筑、起重、安装、打桩、夯土和拔桩等作业。Otheruses:replacementofthede
5、vicesalsocatchexcavators,cranes,theinstallationofthepile,RammingandtheDiocesanpilingoperations.SANYGROUPWWW.SANYGROUP.COM6工作条件Workingconditions6.1液压挖掘机正常工作环境温度为-20℃～55℃。Hydraulicexcavatorsnormalworkingtemperature:-20°C~55°C6.2液压挖掘机应能在Ⅲ级土壤中正常作业，对冻土层和岩石，需松裂和爆破后方可施工，且须使用岩石型铲斗进行作业；岩石型铲斗斗齿须满
6、足JG/T90-1999的要求.Ⅲsoilhydraulicexcavatorshouldbeabletoworknormally,andtherocklayerofpermafrost,andtheneedtosplitthesongblastingbeforeconstruction.Rockrequirestheuseofbucketforoperations;RockBucketToothJG/T90-1999mustmeettherequirementsSANYGROUPWWW.SANYGROUP.COM6.3轮胎式挖掘机在岩石工况作业时，对轮胎进行必要的保
7、护。Tireexcavatorisoperatedinrockcondition,thetiresshouldhavenecessaryprotection.6.4海拔3000m能正常工作。altitudeof3,000mworknormally6.5能在沙漠、盐碱地区工作。Worknormallyinthedesert,salinedistrict6.6适于各种湿度地区工作，最大相对湿度要满足100％。Inhumidityareas,theyarealsosuitableforallkindsofwork,tomeet100%relativehum
