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(jì))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(gè)套筒組件。兩個(gè)套筒有一個(gè)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(shí)現(xiàn)正推力和反推力。5Operation/運(yùn)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(jī)的尾部。反推裝置啟動時(shí)，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(jī)支架艙上組合而成。鎖扣及內(nèi)側(cè)V形裝置把兩個(gè)反推裝置連結(jié)起來。Thrustreverserisatranslatingsleeveandcascadedesign.Eachthrustreverserhasawallwithatranslatingsleeveoftheleftandrighthalfoftheductedfan.Thetwosleevesoneachengineworksimultaneously.However,thetwosleevesareindependentofeachother.反推裝置主要設(shè)計(jì)成一個(gè)滑動整流罩和葉柵。每個(gè)反推裝置左右各有有一個(gè)滑動的外壁（整流罩）。這兩個(gè)滑動整流罩在每個(gè)發(fā)動機(jī)上同時(shí)工作。然而，兩個(gè)滑動整流罩是彼此獨(dú)立的。8

Maincomponentsof

eachthrustreverserhalf

每個(gè)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(gè)液壓作動筒和2根同步軸6Cascades6塊葉柵5Blockerdoors5個(gè)阻流門5Blockerdoordraglinks5個(gè)阻流門拉桿

1T/Ropeningactuatoronpylon1個(gè)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(gè)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(shí)，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(jìn)入風(fēng)扇管道，封鎖風(fēng)扇函道使氣流不能進(jìn)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(gè)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(gè)巨大的復(fù)合材料結(jié)構(gòu),它由頂部歧件，覆蓋發(fā)動機(jī)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(diǎn)。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(gè)反推裝置半部有3個(gè)液壓作動筒。包括一個(gè)鎖定作動筒和兩個(gè)非鎖定作動筒。Eachthrustreverserhalfhavetwosyncshaftsandasynclock.在每個(gè)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(qiáng)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(shí)，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(shí)，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(gè)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(diǎn)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(gè)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(shí)，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(shí)，阻流門拉桿把阻流門移到風(fēng)扇函道中（實(shí)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(gè)張力鎖扣把兩個(gè)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(gè)反推裝置整流罩（半部）有3個(gè)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(diǎn)。當(dāng)反推裝置在收入位置時(shí)，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(gè)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(gè))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(gè)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(jī)運(yùn)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(shí)，圓頭封嚴(yán)條可防止風(fēng)扇葉片排出的氣流進(jìn)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