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1、原創(chuàng)通過答辯畢業(yè)設(shè)計(jì)說明書論文QQ194535455摘要本次設(shè)計(jì)的題目是履帶式液壓挖掘機(jī)挖掘機(jī)構(gòu)。與其它類型的挖掘機(jī)相比，這種類型的挖掘機(jī)因有良好通過性能應(yīng)用最廣，對(duì)松軟地面或沼澤地帶還可采用加寬、加長(zhǎng)以及浮式履帶來降低接地比壓。液壓挖掘機(jī)的主要特點(diǎn)為：能無級(jí)調(diào)速且調(diào)速范圍大，能得到較低的穩(wěn)定轉(zhuǎn)速，快速作用時(shí)，液壓元件產(chǎn)生的運(yùn)動(dòng)慣性小，加速性能好，并可作高速反轉(zhuǎn)，傳動(dòng)平穩(wěn)，結(jié)構(gòu)簡(jiǎn)單，可吸收沖擊和振動(dòng)，操縱省力，易實(shí)現(xiàn)自動(dòng)化控制，易于實(shí)現(xiàn)標(biāo)準(zhǔn)化、系列化、通用化。本次設(shè)計(jì)的主要參數(shù)是斗容量0.2m3,它屬于中小型液壓挖掘機(jī)，主要設(shè)
2、計(jì)挖掘機(jī)的工作裝置、液壓傳動(dòng)原理。在設(shè)計(jì)中，采用了履帶式行走裝置，來滿足要求。上部轉(zhuǎn)臺(tái)是全回轉(zhuǎn)式，因此它可在一個(gè)更大的范圍內(nèi)工作。又因采用液壓傳動(dòng)控制而使整機(jī)性能得以改善。與機(jī)械式挖掘機(jī)相比，其挖掘力提高到2～3倍，整機(jī)質(zhì)量約為5噸，挖掘力約為30kN，最大卸載高度約為2.65m，最大挖掘深度4.2m，最大挖掘半徑約為5.728m，從中可以看出整機(jī)作業(yè)能力有了很大的改進(jìn)，不僅挖掘力大，且機(jī)器重量輕，傳動(dòng)平穩(wěn)，作業(yè)效率高，結(jié)構(gòu)緊湊。關(guān)鍵詞：液壓挖掘機(jī)；挖掘機(jī)構(gòu)；液壓系統(tǒng)56原創(chuàng)通過答辯畢業(yè)設(shè)計(jì)說明書論文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
