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1、原创通过答辩毕业设计说明书论文QQ194535455摘要本次设计的题目是履带式液压挖掘机挖掘机构。与其它类型的挖掘机相比,这种类型的挖掘机因有良好通过性能应用最广,对松软地面或沼泽地带还可采用加宽、加长以及浮式履带来降低接地比压。液压挖掘机的主要特点为:能无级调速且调速范围大,能得到较低的稳定转速,快速作用时,液压元件产生的运动惯性小,加速性能好,并可作高速反转,传动平稳,结构简单,可吸收冲击和振动,操纵省力,易实现自动化控制,易于实现标准化、系列化、通用化。本次设计的主要参数是斗容量0.2m3,它属于中小型液压挖掘机,主要设
2、计挖掘机的工作装置、液压传动原理。在设计中,采用了履带式行走装置,来满足要求。上部转台是全回转式,因此它可在一个更大的范围内工作。又因采用液压传动控制而使整机性能得以改善。与机械式挖掘机相比,其挖掘力提高到2~3倍,整机质量约为5吨,挖掘力约为30kN,最大卸载高度约为2.65m,最大挖掘深度4.2m,最大挖掘半径约为5.728m,从中可以看出整机作业能力有了很大的改进,不仅挖掘力大,且机器重量轻,传动平稳,作业效率高,结构紧凑。关键词:液压挖掘机;挖掘机构;液压系统56原创通过答辩毕业设计说明书论文QQ194535455AB
3、STRACTThisdesignedtopicisthemarchinghydraulicexcavatorexcavationalorganization.Comparedwithothertypesexcavators,thiskindoftypeexcavatorusedveryuniversalthatbecausehasgoodthroughtheperformance,alsomayusetolengthenswidensaswellasthefloatingtypecaterpillarbandtoreducep
4、ressureforthesoftgroundorthebogregion.Thehydraulicexcavatormaincharacteristicis:notonlycanadjuststhesteplessspeedbutalsocanadjustscopeverybig,canobtainalowerstablerotationalspeed,whenactionquickly,thehydraulicpartsproduceinertiasmall,accelerationaltheperformancegood
5、,andmaymakethehighspeedreverse,thetransmissionsteady,structuresimple,mayabsorbattacksandvibrates,theoperationreduceseffort,andtobeeasytorealizetheautomatedcontrol,iseasytorealizethestandardization,theseriation,theuniversalization.Thisdesignedmainparameterisscoopcapa
6、city0.2m3,itislongtothemiddleandsmallscalehydraulicexcavator,mainlydesigntheexcavator,stheworkinstallmentandthehydraulictransmissionprinciple.Inthedesign,usedmarchingwalkedtheinstallmenttosatisfiedrequest.Upsidetheturnplateistheentirerotation,thereofitmayworkinagrea
7、terscope.Andfurtherbecauseusesthehydraulicsteeringtoenabletheentiremachineperformancetoimprove.Comparedwiththemechanicaltypeexcavator,itsexcavationstrengthenhanceto2~3times,theentiremachineweightapproximatelyis5tons,theexcavationstrengthapproximatelyis30kN,thebigges
8、tunloadinghighapproximatelyis2.65m,biggestdiggingdepthis4.2m,thebiggestexcavationradiusapproximatelyis5.728m,thuscanseetheentiremachinewor