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1、液压挖掘机液压系统详解Hydraulicexcavatorhydraulicsystemdetailed2011-09-2710:35source:Chineseexcavatorinformationnetworktoshare:browse:0timesaccordingtothetransmissionofexcavatorworkingdeviceandtherequirementsofvariousinstitutions,thecombinationofvarioushydrauliccomponentsconnectedbypipelineorganical
2、ly,calledthesystemofhydraulicexcavator・Itsfunctionistouseoilastheworkingmedium,usinghydraulicpumptochangethemechanicalenergyoftheengineintohydraulicenergyandtransferit,thenthroughhydrauliccylinderandhydraulichorseAccordingtothedrivingdeviceofexcavatorandthedriverequirementofeachmechanism,
3、thehydrauliccomponentsoftheexcavatorarecalledthehydraulicsystemoftheexcavator・Itsfunctionistooilastheworkingmedium,theuseofhydraulicpumptotheengine'smechanicalenergyintohydraulicenergyandtransport,andthenthroughthehydrauliccylinderandhydraulicmotorwillturnbacktothehydraulicenergyintomecha
4、nicalenergy,toachieveavarietyofactionsofexcavator・BasicRequirementsThehydraulicexcavatoractioncomplex,whereinstitutionsoftenstart,braking,reversing,loadchanges,shockandvibrationfrequency,andfieldoperations,changesintemperatureandlocation,accordingtotheworkingcharacteristicsofhydraulicexca
5、vatorandenvironmentalcharacteristics,thehydraulicsystemshouldmeetthefollowingrequirements:1)toensurethatexcavators,boom,bucketandbucketcanbeindividuallyaction,butalsocancooperatewitheachothertoachievecomplexaction・2)themovementoftheworkingdeviceandtherotationoftheturntablecanbecarriedouts
6、eparatelyandincombination,soastoimprovetheproductivityoftheexcavator・3)theleftandrighttracksofthecrawlerexcavatorarerespectivelydriven,sothattheexcavatoriseasytowalkandflexibletoturn,andcanbeturnedonthespot,soastoimprovetheflexibilityoftheexcavator・4)ensurethatallthemovementsoftheexcavato
7、rarereversibleandsteplessspeedchange・5)theexcavatorworkissafeandreliable,andtheimplementationofcomponents(hydrauliccylinder,hydraulicmotorwithoverloadprotectionetc・)good;rotarymechanismandawalkingdevicehasreliablebrakingandspeed;preventtheboomduetoweightdecreasedand
