外文翻譯--HV8052316 打包機(jī)液壓系統(tǒng)的改進(jìn).doc

譯文43HV8052316打包機(jī)液壓系統(tǒng)的改進(jìn)摘要:文章通過對HV8052316打包機(jī)液壓系統(tǒng)(預(yù)壓部分)的分析,闡述了作者的觀點,并對原液壓系關(guān)鍵詞:HV8052316打包機(jī)；液壓系統(tǒng)；二通插裝閥HV805-316打包機(jī)針對化纖廠的后處理捆抱作業(yè)特點而開發(fā)研制的。該設(shè)備在使用過程中與其他老型號的打包機(jī)比較,由于應(yīng)用了二通插座裝閥控制技術(shù),與傳統(tǒng)液壓閥相比,具有重量輕、體積小、動作速度快、易于集成等優(yōu)點,時間節(jié)拍、工作效率與可靠性大大提高,頗受用戶方的好評。是目前該行業(yè)中使用打包設(shè)備的主流產(chǎn)品。但也存在一些問題,最主要方面是預(yù)壓液壓系統(tǒng),預(yù)壓缸到下限位時保壓保不住,預(yù)壓缸空回升時,預(yù)壓液壓系統(tǒng)壓力過高,電機(jī)長期過載而燒損。此類情況包括進(jìn)口設(shè)備在使用時也時有發(fā)生。本文就此問題對該設(shè)備的預(yù)壓液壓控制系統(tǒng)作了一些分析及改進(jìn)設(shè)計。為該機(jī)原預(yù)壓液壓系統(tǒng)。預(yù)壓液壓系統(tǒng)泵源采用葉片泵。該回路控制部分采用二通插裝閥組,具有限位、卸載、換向功能。它還可以通過對電磁閥的電氣控制,控制液壓缸快速(差動)及慢速運動。由于預(yù)壓缸立式安裝,因此在液壓缸下腔裝有起平衡支承作用的單向平衡閥(一般設(shè)定為35MPa)。為了防止由于液壓缸卸壓而造成的下腔局部真空,在閥組回油路上裝有背壓單向閥。預(yù)壓回路某些動作的轉(zhuǎn)換是由壓力開關(guān)實現(xiàn)的。預(yù)壓缸開始快速差動下降,當(dāng)壓力達(dá)到壓力開關(guān)設(shè)定值(8MPa)時,預(yù)壓液壓缸快速變慢速繼續(xù)向下,預(yù)壓缸到下限位停止下降,卸壓后換向返回頂部。預(yù)壓回路有電氣、液壓兩級壓力保護(hù),當(dāng)壓力達(dá)到21MPa時,壓力開關(guān)發(fā)信關(guān)機(jī)停泵或卸載。一旦壓力開關(guān)失靈,設(shè)定到22MPa的溢流閥起安全溢流作用。工況1:預(yù)壓缸快速下降(差動)。Y12通電,Y15通電,閥CV13控制口由D點壓力控制。泵供油經(jīng)過閥CV14進(jìn)入液壓缸上腔,液壓缸下腔油液由于液壓缸活塞的面積差,C點壓力高于D點壓力,閥CV13被強(qiáng)行開啟,使液壓缸下腔油液流向上腔(會同泵供油液)實現(xiàn)差動。使預(yù)壓缸快速下降。工況2:預(yù)壓缸慢速下降。Y12通電,Y13通電,Y15通電。泵供油經(jīng)過閥CV14進(jìn)入液壓缸上腔,液壓缸下腔油液經(jīng)過單向平衡閥,閥CV12及單向閥回油箱。工況3:預(yù)壓缸保壓(在壓縮下限位時)。電磁閥全部斷電。工況4:預(yù)壓缸卸壓。Y14通電、Y16通電。工況5:預(yù)壓缸回升。Y16通電、Y14通電、Y11通電。泵供油經(jīng)過CV13閥及單向平衡閥進(jìn)入液壓缸下腔。上腔油液經(jīng)過CV15閥及單向閥回油箱,由于泵供油流量大,而單向平衡閥通油截面不可能做得很大,因此大流量的油液經(jīng)過時,節(jié)流作用異常顯著,壓力損失較大?；厣龝r壓力接近系統(tǒng)調(diào)節(jié)壓力。經(jīng)實踐與分析,原液壓系統(tǒng)存在問題需要改進(jìn)(1)CV13、CV14閥組原三位四通電磁閥及梭閥改用球閥及內(nèi)帶梭閥的控制蓋板和插件組成新的CV13、CV14閥組,同時CV14原插件面積比1115改為12。預(yù)壓缸保壓時,由于CV14閥插件有較大的面積比,閥關(guān)閉速度加快,且使閥芯緊壓在閥套上,泄漏情況顯著減少,消除了在壓縮限位時的反彈現(xiàn)象。2HV8052316PreeHydraulicSystemImprovementTheImprovementoftheHydraulicSystemforHV8052316PackingMachineShiSheng2xingAbstract:BasedonthehydraulicsystemHV8052316Pree(surcharging)analysis,ontheauthorsviewpoint,andthehydraulicsystemKeywords:HV8052316Pree；hydraulicsystem；twoCartridgeValvesHV805-316Preeagainstchemicalfiberbundlepost-processingplantoperatingcharacteristicsandhavedevelopeda.TheequipmentusedintheprocesswithotheroldmodelsPreecomparison,thetwo-socketapplicationsloadedvalvecontroltechnology,ascomparedwithconventionalhydraulicvalveislightweight,smallsize,fastaction,easyintegrationadvantages,TimeRhythms,andtheworkingefficiencyandreliabilityhasgreatlyimproved.popularuserspraise.Theindustryiscurrentlyusedinthepackagingequipmentmainstreamproducts.Buttherearestillsomeproblems,themostimportantaspectispre-pressurehydraulicsystem,thePWCtolower-pressurecylinder,packinginfluence,pre-aircylinderpressurerise,surcharginghighpressurehydraulicsystem,theelectricaloverloadandlong-termburning.Suchsituationsincludetheimportedequipmentinusehavealsooccurredfrequently.Inthispaper,theequipmentontheissueofsurcharginghydrauliccontrolsystemmadesomedesignanalysisandimprovement.Surchargingfortheaircrafthydraulicsystem.Pre-pressurehydraulicsystempumpsourceisavanepump.ThecircuitcontrolledbytwoCartridgevalveblockwithspacing,unloading,forthefunction.Italsocanbepassedontheelectricalcontrolsolenoidvalvecontrolhydrauliccylinderfast(differential)andtheslowmovement.Aspre-installedverticalcylinderpressure,hydrauliccylinderinthecavityunderthesupportingroleofabalancewiththeone-waybalancevalve(usuallysetat3to5MPa).Inordertopreventhydrauliccylinderpressurereliefunderthecavitycausedbythepartialvacuumintheoilreturnvalveblocktheroadwithback-pressurevalve.Surchargingloopmovementsofconversionisachievedbythepressureswitch.Pre-pressuredifferentialcylinderrapiddeclinebegan,whenthepressuretopressureswitchsettings(8MPa),thePre-pressurehydrauliccylinderrapidchangecontinuestoslowdown,lower-pressurecylindertostop-drop-andtothepressurereliefBacktotop.Surchargingloopelectrical,hydraulicpressuretoprotecttwo,whenthepressureof21MPa,pressureswitchlettersorunloadingpumpshutdownstopped.Oncethepressureswitchfailure,setto22MPa,thesafetyreliefvalveoverflowfromtherole.Condition1:Pre-pressurecylinderrapiddecline(differential).Y12electricity,Y15telecommunicationsservices,controlvalveCV13mouthfromtheD-pointpressurecontrol.AfterpumpingoilintothecylindervalveCV14superiorvenacava,inferiorvenaOilhydrauliccylinderhydrauliccylinderpistonduetothesizedifference,CpointshigherthantheD-pointpressure,pressure,valveCV13wereforciblyopened,thehydrauliccylinderinferiorvenaOilflowsonthecavity(withthepumpforoil)toachievedifferential.Pre-pressurecylindertorapiddecline.Condition2:Pre-pressurecylinderslowdecline.Y12telecommunicationsservices,electricityY13,Y15electricity.AfterpumpingoilintothecylindervalveCV14superiorvenacava,inferior譯文43venaOilhydrauliccylinderbalancevalvethroughaone-way,one-wayvalvesandvalveCV12backtothefueltank.Case3:Pre-pressurecylinderpressure(inthelower-compression).Solenoidallpower.Condition4:Pre-pressurecylinderpressurerelief.Y14electricity,Y16electricity.Condition5:Pre-pressurecylinderrebound.Y16telecommunicationsservices,electricityY14,Y11electricity.CV13pumpoilthroughaone-wayvalveandbalancevalve,hydrauliccylinderintotheinferiorvenacava.AfterCV15cavityontheoilvalveandcheckvalvetothefueltank,oilpumpflow,andone-way-balancevalvecannotdomuchoilsection,alargeflowofoil,theroleofabnormalexpendituresignificantly,greaterpressureloss.Pressureontherecoveryofnearlypressureregulationsystem.Afterpracticeandanalysis,theoriginalhydraulicsystemproblemneedstobeimproved(1)CV13,CV14valveblocktheoriginalthreeandfour-waysolenoidvalvespindleballvalveandvalveswitchingtotheshuttlewiththecontrolvalvecoverandtheformationofanewplug-inCV13,CV14valveblock,CV14o