CFM56-7反推裝置介紹

Introduction

OfCFM56-7

ThrustReverser

CFM56-7反推裝置的熟悉課程2011年7月1LeadingParticulars(Approximate)

外部尺寸及重量(估計)A.Length–58inches

長-58英寸B.Width–36inches

寬-36英寸C.Height–90inches

高-90英寸D.Weight–346pounds重–346磅2Description/描述Thethrustreverserhastwosleeveassemblies.Thesleeveshaveasupportingdiaphramstructure.Thesupportingdiaphramstructureisattachedtothesliderguides,theblockerdoors,draglinks,theacousticpanelassemblies,andtheoutercowlpanelassemblies.Thesleeveassemblieshavenohydraulicpoweredsubcomponents.

反推裝置有兩個套筒組件。兩個套筒有一個支撐結(jié)構(gòu)，支撐結(jié)構(gòu)連接到滑塊導(dǎo)軌，阻流門，拉桿，消音板組件，以及外函道板組件。套筒組件沒有液壓驅(qū)動的次級部件。3Description/描述Theacousticpanelassembliesandtheblockerdoorassembliesaremadeofhoneycombcompositematerials.

消音板組件和阻流門組件為蜂窩復(fù)合材料，Blockerdoor阻流門4Function/功能Thethrustreverser(T/R)systemcontrolsthedirectionofthefanairexhausttomakeforwardorreversethrust.反推裝置（T／R）系統(tǒng)控制風(fēng)扇葉片氣流的排氣方向從而實現(xiàn)正推力和反推力。5Operation/運作Thethrustreversersleeveassembliesarelocatedontheaftpartoftheengine.Theyarestowedina

forwardpositionduringflight.Whenthethrustreverserisactuated,thesleevesmovetotheaft.This

movestheblockerdoorstoblocktheflowofairbetweenthefanductassemblyandthethrust

reversersleeveassemblies,thenexposesthecascadevanes.Theairthenflowsoutthroughthe

cascadevaneswhichdirecttheairforwardtocreatereversethrust.

反推裝置的套筒組件位于發(fā)動機的尾部。反推裝置啟動時，套筒移到尾部，促使阻流門移動，封鎖風(fēng)扇函道及反推套筒組件的氣流流動，使其從葉柵葉片中排出。氣流從葉柵葉片中排出導(dǎo)致氣流向前，從而產(chǎn)生反推力。6Thrustreverserassembly反推裝置組件Thrustreverserassembly反推裝置組件7General/概述TheT/RsystemusesleftandrightT/Rhalvesthatattachtotheenginestrut.TensionlatchesandinnerV-bladesholdthehalvestogether.反推裝置系統(tǒng)是由左右兩側(cè)反推裝置懸掛在發(fā)動機支架艙上組合而成。鎖扣及內(nèi)側(cè)V形裝置把兩個反推裝置連結(jié)起來。Thrustreverserisatranslatingsleeveandcascadedesign.Eachthrustreverserhasawallwithatranslatingsleeveoftheleftandrighthalfoftheductedfan.Thetwosleevesoneachengineworksimultaneously.However,thetwosleevesareindependentofeachother.反推裝置主要設(shè)計成一個滑動整流罩和葉柵。每個反推裝置左右各有有一個滑動的外壁（整流罩）。這兩個滑動整流罩在每個發(fā)動機上同時工作。然而，兩個滑動整流罩是彼此獨立的。8

Maincomponentsof

eachthrustreverserhalf

每個反推裝置有以下主要部件

TranslatingSleeve滑動整流罩InnerWall內(nèi)夾芯3Hydraulicactuatorsand2syncshafts

3個液壓作動筒和2根同步軸6Cascades6塊葉柵5Blockerdoors5個阻流門5Blockerdoordraglinks5個阻流門拉桿

1T/Ropeningactuatoronpylon1個反推裝置打開作動筒在吊架上Torquebox扭矩盒Fanductinnerwall風(fēng)扇函道內(nèi)夾芯組件3Accessdoors3個檢修門Upperandlowerslidersandtracks上和下滑動件和導(dǎo)軌9Cascadesegments(6per/halfTR)葉柵（6只/一側(cè)反推裝置）Blockerdoors(5per/halfTR)阻流門（5只/一側(cè)反推裝置）Trackliner(lowersimilar)線行滑軌槽（與底部等同）BlockerdoorDraglinks(5per/halfTR)阻流門拉桿（5只/一側(cè)反推裝置）LeftTRsleeve左側(cè)反推整流罩Torquebox扭距盒ThrustReverserThrustReversersystem-components10

FunctionalDescription

功能描述

WhentheT/Rsleevesareintheforward(retracted)position,thefanairexhaustgoesthroughthefanductandcomesoutattherearofthefanduct.Thismakesforwardthrust.當(dāng)反推裝置整流罩在向前（收縮）位置時，氣流經(jīng)風(fēng)扇函道并從風(fēng)扇函道后端排出。這就產(chǎn)生向前推力。WhentheT/Rsleevesmovetotheaft(extended)position,theblockerdoordraglinksmovetheblockerdoorsintothefanduct.Thiscausesablockageofthefanairexhaustinthefanduct.Thefanairthenflowsthroughthecascadesegments.Thesegmentsturnthefanairexhaust.TheycausethefanairexhausttocomeoutthesidesoftheT/Rinaforwarddirection.Thismakesreversethrust.當(dāng)反推裝置整流罩移到尾部（伸展）位置，阻流門支桿移動阻流門進入風(fēng)扇管道，封鎖風(fēng)扇函道使氣流不能進入，接著氣流經(jīng)葉柵組件排出。這些組件使氣流反轉(zhuǎn)，讓氣體由反推裝置前部排出，這就產(chǎn)生反推力。11reLeftTRsleeve左側(cè)反推整流罩Cascadesegments(6per/halfTR)葉柵（6只/一側(cè)反推裝置）Blockerdoors(5per/halfTR)阻流門（5只/一側(cè)反推裝置）BlockerdoorDraglinks(5per/halfTR)阻流門拉桿（5只/一側(cè)反推裝置）12ThrustReverser（half）

反推裝置13ThrustReverser－TranslatingSleeve

反推裝置-滑動整流罩TheT/Rsleevemakestwodifferentroutingsforthefanexhaust:反推滑動整流罩為風(fēng)扇排氣提供兩種方式：Forwardthrust正推力Reversethrust反推力TheT/Rsleeveiscompositeassemblywithanoutersleeveandaninnersleeve(innerwall).TheoutersleevemakestheexteriorcontouroftheT/R.Theinnersleevemakestheouterwallofthefanduct.Also,theinnersleeveholdstheT/Rblockerdoors.Theinnerandoutersleevesarefastenedtogetherattheaftend.

反推裝置滑動整流罩是一個由復(fù)合材料構(gòu)成的帶有外滑動整流罩和內(nèi)套筒的組件。外滑動整流罩構(gòu)成反推裝置的外形和內(nèi)套筒構(gòu)成風(fēng)扇函道的外壁并承載反推裝置的阻流門組件。外滑動整流罩和內(nèi)套筒連結(jié)于尾部。14LeftTRsleeve左側(cè)反推整流罩Blockerdoors(5per/halfTR)阻流門（5只/一側(cè)反推整流罩）15TranslatingSleeve滑動整流罩ThrustReverser－TranslatingSleeve

反推裝置-滑動整流罩16ActuatorattachFitting作動筒安裝接頭ThrustReverser－TranslatingSleeve

反推裝置-滑動整流罩17ThrustReverser－TranslatingSleeve

反推裝置-滑動整流罩ActuatorattachFitting作動筒安裝接頭18ThrustReverser－Translatingsleeve

反推裝置-滑動整流罩Translatingsleeve

滑動整流罩19ThrustReverser－InnerWall

反推裝置-內(nèi)夾芯組件Theinnerwallformspartofthefanductofthethrustreverser.

Theinnerwallisalargeone-piececompositestructurethatformstheupperbifurcation,thecowlthatcoverstheenginecore,andthelowerbifurcation.Ontheairflowside,theinnerwallhasacousticfeatures.Thehingebeamisattachedtotheupperbifurcationandthelatchbeamisattachedtothelowerbifurcation.

內(nèi)夾芯是組成反推裝置風(fēng)扇函道的一部件.內(nèi)夾芯是一個巨大的復(fù)合材料結(jié)構(gòu),它由頂部歧件，覆蓋發(fā)動機核心的函道以及底部歧件組成。在有氣流流過的部分，內(nèi)夾芯有消音的特點。懸掛桁條連接到頂部歧件，扣鎖桁條連接到底部歧件。20ThrustReverser－

InnerWall

反推裝置-內(nèi)夾芯InnerWallassembly

內(nèi)夾芯組件21ThrustReverser－Hydraulicactuator

反推裝置-液壓作動筒General

概述HydraulicactuatorsmovethetranslatingsleevewhentheT/Rsleevesareintheretractedorextendedposition.在反推裝置展開和收縮操作過程中是由液壓作動筒移動滑動整流罩。Eachthrustreverserhalfhasthreehydraulicactuators,includingalockingactuatorandtwonon-lockingactuators.每個反推裝置半部有3個液壓作動筒。包括一個鎖定作動筒和兩個非鎖定作動筒。Eachthrustreverserhalfhavetwosyncshaftsandasynclock.在每個反推裝置組件上有兩根同步軸及一把同步鎖。

2223Hydraulicactuator

液壓作動筒Hydraulicactuator

液壓作動筒Non-lockingactuator非鎖定作動筒lockingactuator鎖定作動筒

2425UpperLockingactuator頂部鎖定作動筒26Lockingactuator鎖定作動筒Upperlockingactuator上部鎖定作動筒Lockhandle鎖定手柄Middleactuator中部作動筒27Loweractuator底部作動筒28Non-lockingactuator非鎖定作動筒

Non-lockingactuator非鎖定作動筒29Syncshaft同步軸30SyncShaft同步軸Syncshaft同步軸31Syncshaftinspection

同步軸檢查32Syncshaftinspection

同步軸檢查33ThrustReverser－CascadeSegments

反推裝置-葉柵組件

General概述ThecascadesegmentscontrolthedirectionofthefanairexhaustwhentheT/Rsleevesareintheaft(extended)positionandtheblockerdoorsareopenedinthefanduct.ThecascadesegmentsalsogivestructuralstrengthtotheT/R.在反推滑動整流罩展開操作過程中，阻流門在風(fēng)扇函道中打開，葉柵控制風(fēng)扇空氣排氣的方向。這樣就產(chǎn)生反推力。葉柵也增加反推裝置的結(jié)構(gòu)強度。Thecascadesegmentsattachtothetorqueboxandthecascadesegmentattachring.WhentheT/Rsleeveisretracted,thecascadesegmentsfitinthespacebetweentheinnerandoutersleeve.WhentheT/Rsleeveisextended,thecascadesegmentsareexposedtothefanairexhaustflowturnedbytheblockerdoors.葉柵組件和扭矩盒以及葉柵支撐環(huán)連結(jié)在一起。當(dāng)反推滑動整流罩處于收縮位置時，葉柵組件處于外滑動整流罩和內(nèi)套筒之間。當(dāng)反推套筒處于展開位置時，葉柵組件暴露于阻流門改向的排氣流中。TheT/Rcascadesegmentsaremadeofcompositegraphiteepoxy

material.葉柵是石墨環(huán)氧樹脂的，屬于復(fù)合材料。

34CascadeSegments葉柵組件35CascadeSegments

葉柵組件Cascadesegments葉柵組件36ThrustReverser－Torquebox

反推裝置-扭矩盒General概述Thetorqueboxisasemi-circularstructurethatconnectstheupperhingebeamandthelowerlatchbeam.Thehydrauliclockingandnon-lockingactuatorsareinstalledthroughthetorqueboxandtheforwardactuatorgimbalsarepinnedtofittingsonthetorquebox.Thedeployandretracthydraulictubingarelocatedbytubingclampsmountedonthetorquebox.Thelinervariabledifferentialtransducer(LVDT)

togetherwithlockingactuatorandtheproximitysensorsonthelockingactuatorandthesynclockisattachedtotheloweractuatorwithwirebundleclamps.Theforwardattachmentpointsforthecascadesegmentsareontheaftsideofthetorquebox.

扭矩盒是連接懸掛桁條及底部扣鎖桁條的一個半圓形結(jié)構(gòu)。液壓鎖和非鎖定作動筒通過前作動筒平衡環(huán)安裝于扭矩盒上。展開和收縮液壓管道固定于扭矩盒的管夾上。線位傳感器（LVDT)和上部作動筒上合為一體,鎖定作動筒附近的傳感器是用電線束夾子固定在上部作動筒上,而同步鎖及其線路策是固定在下部作動筒上。葉柵組件的前端有固定連接點可以連接在扭矩盒的后端。

37Torquebox

扭矩盒Torquebox扭矩盒38T/Rblockerdoorsandblockerdoordraglinks

反推裝置阻流門和阻流門拉桿

General概述TheT/Rblockerdoorsandtheblockerdoordraglinksmakeablockageinthefanducttochangethedirectionofthefanairexhaust.

阻流門和阻流門拉桿在反推裝置中可以形成一個障礙通道從而控制風(fēng)扇中的氣流流動以改變風(fēng)扇排氣方向WhentheT/Rsleeveisintheforward(retracted)position,theblockerdoorsmakepartofthefanductouterwall.當(dāng)反推套筒處于向前（收縮）位置時，阻流門成為風(fēng)扇函道外圍的一部分。WhentheT/Rsleeveisintheaft(extended)position,theblockerdoordraglinksmovetheblockerdoorsintothefanduct.當(dāng)反推套筒處于向后（展開）位置時，阻流門拉桿把阻流門移到風(fēng)扇函道中（實現(xiàn)變道氣流）。TheT/Rcascadesegmentsaremadeofcompositegraphiteepoxy

material.葉柵是石墨環(huán)氧樹脂的，屬于復(fù)合材料。39LeftTRsleeve左側(cè)反推整流罩Blockerdoors(5per/halfTR)阻流門（5只/一側(cè)反推整流罩）40Blockerdoor

阻流門41Blockerdoor阻流門

Faceside/正面backside/背面42Blockerdoordraglinks

阻流門拉桿SphericalBearingType43Blockerdoordraglinks

阻流門拉桿44Blockerdoordraglinks

阻流門拉桿Blockerdoordraglinks

阻流門拉桿45

ThrustReverser－Tensionlatches

反推裝置-張力鎖扣

General

概述Sixtensionlatchesholdthethrustreverserhalvestogether.ThetensionlatchesareatthebottomontheT/Rlatchbeam.6個張力鎖扣把兩個半部反推裝置連結(jié)起來。張力鎖扣在反推裝置扣鎖梁底部。46

ThrustReverser－Tensionlatches

反推裝置-張力鎖扣

47Tensionlatches

張力鎖扣Tensionlatches

張力鎖扣

48

ThrustReverser–Accessdoor

反推裝置-檢修門

General概述Eachthrustreversertranslatingsleeve(half)hasthreeaccessdoors.Removetheaccessdoorclosetotheconnectionpointofthrustreverserhydraulicactuator.WhentheT/Rsleeveisintheforward(retracted)position,

ifthefanairflowthroughtheoutercornerseals,themiddleaccessdooralsoprovidesanoutletfortheair.每個反推裝置整流罩（半部）有3個檢修門。拆下檢查口蓋可接近反推裝置液壓作動筒后連接點。當(dāng)反推裝置在收入位置時，如果有氣流通過外角密封裝置，位于中間的檢修口蓋可以為這些氣流提供一個出口。49ThrustReverser–Accessdoor

反推裝置-檢修門50ThrustReverser–Accessdoor

反推裝置-檢修門Accessdoor(3per/halfTR)

檢修門(每只反推3個)51

ThrustReverser–Fireseal

反推裝置-防火封嚴(yán)條

General

概述Thefiresealshelptocontainanundercowlfuel-fedfire.

Theupperrubberfiresealsclosesthegapbetweenthestrutstructureandtheupperbifurcationinnerwalls.Thelowerrubberfiresealclosesthegapbetweenthelowerbifurcationinnerwallsoftheleftandrightthrustreverserhalves.Therubberfiresealsalsofunctionasanaerodynamicsealandafluidseal.

防火封嚴(yán)條為反流燃油火焰提供一個容納空間。頂部防磨防火封嚴(yán)條用來密封吊架結(jié)構(gòu)和頂部歧件的內(nèi)夾芯縫隙，底部防磨防火封嚴(yán)條用來密封左右反推裝置的底部歧件間的內(nèi)夾芯縫隙。防磨防火封嚴(yán)條同樣可作為氣流和液體的密封條。52Fireseal

防火封嚴(yán)條53Fireseal

防火封嚴(yán)條

Fireseal防火封嚴(yán)條54

ThrustReverser–Rubstrip

反推裝置-耐磨壓條

General

概述Rub-stripsaremountedonthecircumferenceofthetorquebox

asawearsurfaceforthefanduct

cowlandthetranslating

sleeves.

耐磨壓條位于扭矩盒周圍，它可作為風(fēng)扇函道和滑動整流罩的磨損面。55

Rubstrip

耐磨壓條

56Rubstrip

耐磨壓條

Rubstrip/耐磨壓條57

ThrustReverser–InsulationBlanket

反推裝置-隔熱毯

General概述Thethermalinsulationblanketsareinstalledonbracketsandstudsthat

areinstalledontheinnersurfaceoftheinnerwall.Theseblanketsareathermalinsulationandfirebarrierwhichisnecessarytokeepthethrustreverserstructurallyserviceableandcandecreasethedamageandrepaircostsfromaductburstorfire.Thethermalinsulationpreventsfireandengineoperationheatdamagetothecompositeinnerwallofthefanductcowl.隔熱毯安裝于內(nèi)夾芯內(nèi)表面的支架釘及緊固件上。隔熱毯是隔熱及防火的一道屏障，對于反推裝置結(jié)構(gòu)的使用性，減少管道破裂或燃燒產(chǎn)生的損傷及維修成本來說，是很必要的。隔熱毯可防止火焰和發(fā)動機運行產(chǎn)生的熱量對風(fēng)扇函道內(nèi)夾芯組件復(fù)合材料的損害。58InsulationBlanket

隔熱毯59InsulationBlanket

隔熱毯InsulationBlanket隔熱毯60

ThrustReverser–Bullnoseseal

反推裝置-圓頭封嚴(yán)條

General

概述ThebullnosesealpreventsfanexhaustairflowintotheinnerpartoftheT/RtranslatingsleevewhentheT/Risinthestowposition.Youcanmovethetranslatingsleevesafttogetaccesstothebullnoseseal.

當(dāng)反推裝置在收縮位置時，圓頭封嚴(yán)條可防止風(fēng)扇葉片排出的氣流進入反推滑動整流罩的內(nèi)部。通過移動滑動整流罩尾部可以看