会员注册 | 登录 | 微信快捷登录 支付宝快捷登录 QQ登录 微博登录 | 帮助中心 人人文库renrendoc.com美如初恋!
站内搜索 百度文库

热门搜索: 直缝焊接机 矿井提升机 循环球式转向器图纸 机器人手爪发展史 管道机器人dwg 动平衡试验台设计

   首页 人人文库网 > 资源分类 > DOC文档下载

外文翻译--液压泵.doc

  • 资源星级:
  • 资源大小:390.00KB   全文页数:12页
  • 资源格式: DOC        下载权限:注册会员/VIP会员
您还没有登陆,请先登录。登陆后即可下载此文档。
  合作网站登录: 微信快捷登录 支付宝快捷登录   QQ登录   微博登录
友情提示
2:本站资源不支持迅雷下载,请使用浏览器直接下载(不支持QQ浏览器)
3:本站资源下载后的文档和图纸-无水印,预览文档经过压缩,下载后原文更清晰   

外文翻译--液压泵.doc

中国矿业大学2008届本科生毕业设计第1页翻译部分英文原文HydraulicpumpAbstractAhydraulicpumpunitisencasedbetweenapumpbodyandapumpcover.Abearingholepassesthroughthepumpbodyandisformedinthepumpbody.Adriveshaftandabearingbushareinsertedintothebearinghole.Thedriveshaftdrivesthehydraulicpumpunitandthebearingbushsupportsthedriveshaft.Atanendportionofthebearinghole,asealchamberisformed.Thesealchamberencasesasealmember.Anoilgrooveisformedinsidethebearinghole.Theoilgrooveconnectsthehydraulicpumpunitsidewiththesealchamberandcarrieshydraulicoilforlubrication.Theoilgrooveisformedinsuchamannerthatasectionalareainthesealchambersideisgreaterthanasectionalareainthehydraulicpumpunitside.Thebearingbushcomprisesapluralityofbushpiecesarrangedatapredeterminedintervalinanaxialdirectionofthebearinghole.SUMMARYOFTHEINVENTIONThefollowingisanexplanationofoneembodimentappliedtoahydraulicpumpofapowersteeringofthepresentinventionwithreferencetothedrawings.中国矿业大学2008届本科生毕业设计第2页Inthedrawings,areferencenumeral1denotesapumpbodymadeofmetallicmaterialssuchasaluminumalloyandsoonandareferencenumeral2denotesapumpcovermadeofmetallicmaterials.Thepumpbody1andthepumpcover2encaseahydraulicpumpunit3.Thatis,anannularconcaveportion4isformedbetweenthepumpbody1andthepumpcover2.Thehydraulicpumpunit3isinstalledintheannularconcaveportion4.Inthisembodiment,thehydraulicpumpunit3isavanehydraulicpumpunit.Thehydraulicpumpunit3includesacamring7encasingarotor6.Therotor6comprisesapluralityofvanes5whichareradiallymovableinandout.Bothsidesofthecamring7areguidedbysideplates8and9.Apumpingchamber10isformedbytwoadjacentoneofthevanes5betweenthecamring7andtherotor6.Thevolumeofthepumpingchamber10variesbytherotationoftherotor6.Withthisvariation,aninhalingzoneisformedinaportionincreasinginvolumeandadischargingzoneisformedinaportiondecreasinginvolume.Notchpassages8aand8bareformedinthesideplates8and9.Thesideplates8and9facethedischargingzone.Thenotchpassages8aand9aopenradiallyandoutwardly.Theoildischargedfromthepumpisdischargedintoadischargingchamberahighpressurechamber11oftheannularconcaveportion4oftheoutercircumferenceofthecamring7.Aninhalingportnotshowninthedrawingisformedinthesideplate9facingtheinhalingzoneandpassestherethrough.Abearinghole12isformedinthepumpbody1andpassesthroughthepumpbody1.Asealchamber13isformedinanendportionofthebearinghole12.Anoilgroove14communicatingfromthehydraulicpumpunit3sidetothesealchamber13isformedinthebearinghole12.Thesectionoftheoilgroove14isacirculararc.thesectionalareaoftheoilgroove14inthesealchamber13sideisgreaterthanthesectionalareaoftheoilgroove14inthehydraulicpumpunit3sideanditiseasytoformtheoilgroove14inacastingmold.Theoilgroove14inthisembodimentisdividedatasubstantiallycenterpositionofthebearinghole12.However,becausethesubstantiallycenterpositionofthebearinghole12ispositionedbetweenapluralityofbushpieceslatermentioned,thesubstantiallycenterpositionofthebearinghole12issubstantiallycommunicatedwithanintervalbetweenthebushpieces.Becausetheoilgroove14isdividedatthesubstantiallycenterpositionofthebearinghole12,thisdividedpartbecomesasocalledlabyrinthandaflowresistanceisappliedtohydraulicoilflowingintheoilgroove14.Therefore,itispossibletodecreasetheenergyofthehydraulicoilflowingintothesealchamber13.Theoilgroove14canbecontinuouslyformedwithoutdividingatthesubstantiallycenterpositionofthebearinghole12.Theoilgroove14canbecontinuouslyformedinatapershapesothatthesectionalareaincreasesgraduallyfromthehydraulicpumpunit3sidetothesealchamber13side.Withthisstructure,theoilgroove14canleadtheleakageoilfromthebearinghole12ofthehydraulicpumpunit3tothesealchamber13.Theleakageoilfromthehydraulicpumpunit3isthehydraulicoilleakingbetweentherotor6andthesideplates8and9andisalittle中国矿业大学2008届本科生毕业设计第3页hydraulicoilleakingfromthejointbetweenthepumpbody1andthesideplate9.Aninhalingpassage15,adischargingpassage16andaspoolvalvereceivingbore17areformedinthepumpbody1.Theinhalingpassage15connectseachpumpingchamber10oftheinhalingzonewithastoragetanknotshowninthedrawing.Thedischargingpassage16connectseachpumpingchamber10ofthedischargingzonewiththeactuatorofthepowersteeringnotshowninthedrawing.Oneendofthespoolvalvereceivingbore17issealed.Theinhalingpassage15isbranchedintotwodirectionsatthejointfacingthesideplate9.Attheendportionoftheinhalingpassage15,acirculararcshapeinhalingport18isformed.Theinhalingport18isformedsothattheinhalingport18facestheinhalingport,notshowninthedrawing,formedinthesideplate9.Theinhalingpassage15isconnectedwiththesealchamber13throughalowpressurepassage19.Thelowpressurepassage19issubstantiallyparallelwiththebearinghole12.Thedischargingpassage16isbentradiallyandoutwardlyatthejointfacingthesideplate9.Anorificepassage21connectedwithaninhalingport20formedinthesideplate9isformedinthedischargingpassage16.Areferencenumeral22denotesabearingbushinsertedintothebearinghole12.Thebearingbush22comprisesapluralityofbushpieces23positionedatapredeterminedintervalintheaxialdirectionofthebearinghole12.Inthisembodiment,thebearingbush22comprisestwobushpieces23positionedattheinterval1intheaxialdirectionofthebearinghole12.Thebushpiece23isformedintoacylindricalshapebyroundingaplatemember.Theinnersurfaceofthebearingbush22issmooth.Theoilgrooveisnotformedinthebearingbush22.Theinterval1betweenthetwobushpieces23formingthebearingbush22ispreferabletobesubstantially1/3oftheaxiallengthLofthebearingbush22inordertosecuretheareaforsupportingthebearingbush22.Inthisembodiment,theinterval1betweenthebushpieces23issubstantially1/5oftheaxiallengthLofthebearingbush22.Areferencenumeral25denotesadriveshaftfordrivingthehydraulicpumpunit3.Thedriveshaft25isinsertedintothebearinghole12insuchamannerthatthedriveshaft25issupportedbythebearingbush22.Thedriveshaft25hasserrations26formedneartheforwardend.Theserrations26passthroughthethroughhole9bofthesideplate9andarefittedintheserrationhole27oftherotor6.Withthis,thedriveshaft25iscapableofdrivingtherotor6ofthehydraulicpumpunit3.Theforwardendportionofthedriveshaft25istaperedandlooselyfittedinthethroughhole8bofthesideplate8.Aspoolvalve30controllingthequantityoftheoilisslidablymovableandisfittedinthespoolvalvereceivingbore17.Thespoolvalve30dividestheinsideofthespoolvalvereceivingbore17intoafirstpressurechamber17aandasecondpressurechamber17b.Thespoolvalve30isnormallybiasedtowardthefirstpressurechamber17asidebyaspringforceofacontrolspring31.Thecontrolspring31isencasedinthesecondpressurechamber17b.Thespoolvalve30closesadrainpassage33connectingtheinhalingpassage15inanormalcondition.中国矿业大学2008届本科生毕业设计第4页Inthepumpbody1,apassage35isformed.Thepassage35isconnectedwithadischarginglotnotshowninthedrawinginordertoconnectwiththedischargingpassage16andtoleadhydraulicoiltothepowersteering,thatis,theactuatornotshowninthedrawing.Thepassage35isconnectedwiththesecondpressurechamber17bthroughapassage36.Thepressureinthedischargingpassage16isledintothesecondpressurechamber17b.Areferencenumeral39denotesapressureswitchmountedonthepumpcover2.Thepressureswitch39comprisesafixedcontact39aandamovingcontact39b.Thepressureswitch39isabletooperateaccordingtothepressureofthedischargingchamber11becausetheendportionofthemovingcontact39bfacesapassage40connectingwiththedischargingchamber11.Thepressureswitch39isthrustintoandfixedintheinsideofaconcaveportion41.Theinsideoftheconcaveportion41isconnectedwiththethroughhole9bofthesideplate9througharadialpassage42andanaxialpassage43.Thepumpbody1andthepumpcover2areconnectedandfixedwitheachotherbyboltsnotshowninthedrawing.Thejointbetweenthepumpbody1andthepumpcover2issealedbyasealring44soastopreventthehydraulicoildischargedintothedischargingchamber11fromleakingtotheoutside.Areferencenumeral45denotesasealringinstalledbetweenthepumpcover2andthesideplate8.Thesealring45separatesthedischargingchamber11fromthethroughhole8bofthesideplate8.Areferencenumeral46denotesasealmember.Thesealmember46isinstalledinthesealchamber13andsealsthedriveshaft25.Withthisstructure,thedriveshaft25isrotationallydriventhroughthepulleynotshowninthedrawingandtherotor6connectedwiththedriveshaft25isrotationallydriven.Whentherotor6isrotationallydriven,withtherotationoftherotor6,thevolumeoftheinhalingzoneincreasesandthevolumeofthedischargingzonedecreases.Hydraulicoilisinhaledfromtheinhalingpassage15throughtheinhalingport18intothepumpingchamber10intheinhalingzone,passesthroughthepumpandisdischargedfromthepumpingchamber10inthedischargingzoneintothedischargingchamber11.Thehydraulicoildischargedintothedischargingchamber11isledtothefirstpressurechamber17athroughtheleadingpassage34.Thehydraulicoilledintothefirstpressurechamber17aisledintotheactuatorofthepowersteeringnotshowninthedrawingthroughtheorificepassage21,thedischargingpassage16andthepassage35.Inanormalcondition,thespoolvalve30isurgedtowardthefirstpressurechamber17asidebythecontrolspring31andclosesthedrainpassage33bythelandportion32ofthemainbodyofthespoolvalve30.Allofthedischargedoilledintothefirstpressurechamber17aisledintotheactuatornotshowninthedrawingthroughtheorificepassage21.Whentherotationalspeedofthepumpincreases,thequantityoftheoildischargedfromthepumpincreasesandthequantityoftheoildischargedfromthepumpledintothefirstpressurechamber17aincreases,thehydraulicoilinthefirstpressurechamber17aisledintothedischargingpassage16underthelimitationofflowbytheorificepassage21,thespoolvalve30movesrightwardandcompressesthecontrolspring31toapredeterminedlength

注意事项

本文(外文翻译--液压泵.doc)为本站会员(英文资料库)主动上传,人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知人人文库网([email protected]),我们立即给予删除!

温馨提示:如果因为网速或其他原因下载失败请重新下载,重复下载不扣分。

copyright@ 2015-2017 人人文库网网站版权所有
苏ICP备12009002号-5