已阅读5页,还剩7页未读, 继续免费阅读
版权说明:本文档由用户提供并上传,收益归属内容提供方,若内容存在侵权,请进行举报或认领
文档简介
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HydraulicpumpAbstract:Ahydraulicpumpunitisencasedbetweenapumpbodyandapumpcover.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.Theoildischargedfromthepumpisdischargedintoadischargingchamber(ahighpressurechamber)11oftheannularconcaveportion4oftheoutercircumferenceofthecamring7.Aninhalingportnotshowninthedrawingisformedinthesideplate9facingtheinhalingzoneandpassestherethrough.Abearinghole12isformedinthepumpbody1andpassesthroughthepumpbody1.Asealchamber13isformedinanendportionofthebearinghole12.Anoilgroove14communicatingfromthehydraulicpumpunit3sidetothesealchamber13isformedinthebearinghole12.Thesectionoftheoilgroove14isacirculararc.thesectionalareaoftheoilgroove14inthesealchamber13sideisgreaterthanthesectionalareaoftheoilgroove14inthehydraulicpumpunit3sideanditiseasytoformtheoilgroove14inacastingmold.Theoilgroove14inthisembodimentisdividedatasubstantiallycenterpositionofthebearinghole12.However,becausethesubstantiallycenterpositionofthebearinghole12ispositionedbetweenapluralityofbushpieceslater-mentioned,thesubstantiallycenterpositionofthebearinghole12issubstantiallycommunicatedwithanintervalbetweenthebushpieces.Becausetheoilgroove14isdividedatthesubstantiallycenterpositionofthebearinghole12,thisdividedpartbecomesaso-calledlabyrinthandaflowresistanceisappliedtohydraulicoilflowingintheoilgroove14.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.Theinterval1betweenthetwo-bushpieces23formingthebearingbush22ispreferabletobesubstantially1/3oftheaxiallengthLofthebearingbush22inordertosecuretheareaforsupportingthebearingbush22.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.Thehydraulicoildischargedinto
温馨提示
- 1. 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
- 2. 本站的文档不包含任何第三方提供的附件图纸等,如果需要附件,请联系上传者。文件的所有权益归上传用户所有。
- 3. 本站RAR压缩包中若带图纸,网页内容里面会有图纸预览,若没有图纸预览就没有图纸。
- 4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
- 5. 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,对用户上传分享的文档内容本身不做任何修改或编辑,并不能对任何下载内容负责。
- 6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
- 7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。
最新文档
- 卖油翁课文分析市公开课一等奖省赛课微课金奖课件
- 认识面积公开课省公开课一等奖全国示范课微课金奖课件
- 葫芦岛市老官卜中学2024年中考联考英语试卷含答案
- 学校礼仪专题知识省公开课一等奖全国示范课微课金奖课件
- 古诗词常见意象人文典故类三配图欣赏市公开课一等奖省赛课微课金奖课件
- 高考英语复习-Module-4-A-Social-Survey-My-Neighbourhood市赛
- 高中历史专题4亚洲觉醒的先驱三圣雄甘地省公开课一等奖新名师获奖课件
- 高考数学复习第八章解析几何8.2两条直线的位置关系理市赛课公开课一等奖省名师获奖课件
- 从诗词学管理-精简版市公开课一等奖省赛课微课金奖课件
- 独立主格结构和with复合结构复习市公开课一等奖省赛课微课金奖课件
- 【教案】从传统到现代+教学设计高中美术湘美版(2019)美术鉴赏
- 人教版五年级数学下册第二单元大单元教学设计
- 医用高压氧舱研究报告-中国医用高压氧舱行业市场全景调研及投资价值评估研究报告(2024年)
- 2022-2023学年辽宁省辽阳重点中学高一(下)期中数学试卷(含解析)
- 儒家传统“礼”的演变及其当代价值
- 强化隐患排查保证电网安全
- 汽轮机小机油箱清扫三措两案
- 印刷行业保密规范培训
- 员工作风建设培训课件
- 初中八年级数学课件-等腰三角形的性质 全国优质课一等奖
- 中小学生劳动实践指导手册
评论
0/150
提交评论