CFM56-7反推装置介绍

Introduction

OfCFM56-7

ThrustReverser

CFM56-7反推装置的熟悉课程2011年7月1LeadingParticulars(Approximate)

外部尺寸及重量(估计)A.Length–58inches

长-58英寸B.Width–36inches

宽-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.

反推装置有两个套筒组件。两个套筒有一个支撑结构，支撑结构连接到滑块导轨，阻流门，拉杆，消音板组件，以及外函道板组件。套筒组件没有液压驱动的次级部件。3Description/描述Theacousticpanelassembliesandtheblockerdoorassembliesaremadeofhoneycombcompositematerials.

消音板组件和阻流门组件为蜂窝复合材料，Blockerdoor阻流门4Function/功能Thethrustreverser(T/R)systemcontrolsthedirectionofthefanairexhausttomakeforwardorreversethrust.反推装置（T／R）系统控制风扇叶片气流的排气方向从而实现正推力和反推力。5Operation/运作Thethrustreversersleeveassembliesarelocatedontheaftpartoftheengine.Theyarestowedina

forwardpositionduringflight.Whenthethrustreverserisactuated,thesleevesmovetotheaft.This

movestheblockerdoorstoblocktheflowofairbetweenthefanductassemblyandthethrust

reversersleeveassemblies,thenexposesthecascadevanes.Theairthenflowsoutthroughthe

cascadevaneswhichdirecttheairforwardtocreatereversethrust.

反推装置的套筒组件位于发动机的尾部。反推装置启动时，套筒移到尾部，促使阻流门移动，封锁风扇函道及反推套筒组件的气流流动，使其从叶栅叶片中排出。气流从叶栅叶片中排出导致气流向前，从而产生反推力。6Thrustreverserassembly反推装置组件Thrustreverserassembly反推装置组件7General/概述TheT/RsystemusesleftandrightT/Rhalvesthatattachtotheenginestrut.TensionlatchesandinnerV-bladesholdthehalvestogether.反推装置系统是由左右两侧反推装置悬挂在发动机支架舱上组合而成。锁扣及内侧V形装置把两个反推装置连结起来。Thrustreverserisatranslatingsleeveandcascadedesign.Eachthrustreverserhasawallwithatranslatingsleeveoftheleftandrighthalfoftheductedfan.Thetwosleevesoneachengineworksimultaneously.However,thetwosleevesareindependentofeachother.反推装置主要设计成一个滑动整流罩和叶栅。每个反推装置左右各有有一个滑动的外壁（整流罩）。这两个滑动整流罩在每个发动机上同时工作。然而，两个滑动整流罩是彼此独立的。8

Maincomponentsof

eachthrustreverserhalf

每个反推装置有以下主要部件

TranslatingSleeve滑动整流罩InnerWall内夹芯3Hydraulicactuatorsand2syncshafts

3个液压作动筒和2根同步轴6Cascades6块叶栅5Blockerdoors5个阻流门5Blockerdoordraglinks5个阻流门拉杆

1T/Ropeningactuatoronpylon1个反推装置打开作动筒在吊架上Torquebox扭矩盒Fanductinnerwall风扇函道内夹芯组件3Accessdoors3个检修门Upperandlowerslidersandtracks上和下滑动件和导轨9Cascadesegments(6per/halfTR)叶栅（6只/一侧反推装置）Blockerdoors(5per/halfTR)阻流门（5只/一侧反推装置）Trackliner(lowersimilar)线行滑轨槽（与底部等同）BlockerdoorDraglinks(5per/halfTR)阻流门拉杆（5只/一侧反推装置）LeftTRsleeve左侧反推整流罩Torquebox扭距盒ThrustReverserThrustReversersystem-components10

FunctionalDescription

功能描述

WhentheT/Rsleevesareintheforward(retracted)position,thefanairexhaustgoesthroughthefanductandcomesoutattherearofthefanduct.Thismakesforwardthrust.当反推装置整流罩在向前（收缩）位置时，气流经风扇函道并从风扇函道后端排出。这就产生向前推力。WhentheT/Rsleevesmovetotheaft(extended)position,theblockerdoordraglinksmovetheblockerdoorsintothefanduct.Thiscausesablockageofthefanairexhaustinthefanduct.Thefanairthenflowsthroughthecascadesegments.Thesegmentsturnthefanairexhaust.TheycausethefanairexhausttocomeoutthesidesoftheT/Rinaforwarddirection.Thismakesreversethrust.当反推装置整流罩移到尾部（伸展）位置，阻流门支杆移动阻流门进入风扇管道，封锁风扇函道使气流不能进入，接着气流经叶栅组件排出。这些组件使气流反转，让气体由反推装置前部排出，这就产生反推力。11reLeftTRsleeve左侧反推整流罩Cascadesegments(6per/halfTR)叶栅（6只/一侧反推装置）Blockerdoors(5per/halfTR)阻流门（5只/一侧反推装置）BlockerdoorDraglinks(5per/halfTR)阻流门拉杆（5只/一侧反推装置）12ThrustReverser（half）

反推装置13ThrustReverser－TranslatingSleeve

反推装置-滑动整流罩TheT/Rsleevemakestwodifferentroutingsforthefanexhaust:反推滑动整流罩为风扇排气提供两种方式：Forwardthrust正推力Reversethrust反推力TheT/Rsleeveiscompositeassemblywithanoutersleeveandaninnersleeve(innerwall).TheoutersleevemakestheexteriorcontouroftheT/R.Theinnersleevemakestheouterwallofthefanduct.Also,theinnersleeveholdstheT/Rblockerdoors.Theinnerandoutersleevesarefastenedtogetherattheaftend.

反推装置滑动整流罩是一个由复合材料构成的带有外滑动整流罩和内套筒的组件。外滑动整流罩构成反推装置的外形和内套筒构成风扇函道的外壁并承载反推装置的阻流门组件。外滑动整流罩和内套筒连结于尾部。14LeftTRsleeve左侧反推整流罩Blockerdoors(5per/halfTR)阻流门（5只/一侧反推整流罩）15TranslatingSleeve滑动整流罩ThrustReverser－TranslatingSleeve

反推装置-滑动整流罩16ActuatorattachFitting作动筒安装接头ThrustReverser－TranslatingSleeve

反推装置-滑动整流罩17ThrustReverser－TranslatingSleeve

反推装置-滑动整流罩ActuatorattachFitting作动筒安装接头18ThrustReverser－Translatingsleeve

反推装置-滑动整流罩Translatingsleeve

滑动整流罩19ThrustReverser－InnerWall

反推装置-内夹芯组件Theinnerwallformspartofthefanductofthethrustreverser.

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

内夹芯是组成反推装置风扇函道的一部件.内夹芯是一个巨大的复合材料结构,它由顶部歧件，覆盖发动机核心的函道以及底部歧件组成。在有气流流过的部分，内夹芯有消音的特点。悬挂桁条连接到顶部歧件，扣锁桁条连接到底部歧件。20ThrustReverser－

InnerWall

反推装置-内夹芯InnerWallassembly

内夹芯组件21ThrustReverser－Hydraulicactuator

反推装置-液压作动筒General

概述HydraulicactuatorsmovethetranslatingsleevewhentheT/Rsleevesareintheretractedorextendedposition.在反推装置展开和收缩操作过程中是由液压作动筒移动滑动整流罩。Eachthrustreverserhalfhasthreehydraulicactuators,includingalockingactuatorandtwonon-lockingactuators.每个反推装置半部有3个液压作动筒。包括一个锁定作动筒和两个非锁定作动筒。Eachthrustreverserhalfhavetwosyncshaftsandasynclock.在每个反推装置组件上有两根同步轴及一把同步锁。

2223Hydraulicactuator

液压作动筒Hydraulicactuator

液压作动筒Non-lockingactuator非锁定作动筒lockingactuator锁定作动筒

2425UpperLockingactuator顶部锁定作动筒26Lockingactuator锁定作动筒Upperlockingactuator上部锁定作动筒Lockhandle锁定手柄Middleactuator中部作动筒27Loweractuator底部作动筒28Non-lockingactuator非锁定作动筒

Non-lockingactuator非锁定作动筒29Syncshaft同步轴30SyncShaft同步轴Syncshaft同步轴31Syncshaftinspection

同步轴检查32Syncshaftinspection

同步轴检查33ThrustReverser－CascadeSegments

反推装置-叶栅组件

General概述ThecascadesegmentscontrolthedirectionofthefanairexhaustwhentheT/Rsleevesareintheaft(extended)positionandtheblockerdoorsareopenedinthefanduct.ThecascadesegmentsalsogivestructuralstrengthtotheT/R.在反推滑动整流罩展开操作过程中，阻流门在风扇函道中打开，叶栅控制风扇空气排气的方向。这样就产生反推力。叶栅也增加反推装置的结构强度。Thecascadesegmentsattachtothetorqueboxandthecascadesegmentattachring.WhentheT/Rsleeveisretracted,thecascadesegmentsfitinthespacebetweentheinnerandoutersleeve.WhentheT/Rsleeveisextended,thecascadesegmentsareexposedtothefanairexhaustflowturnedbytheblockerdoors.叶栅组件和扭矩盒以及叶栅支撑环连结在一起。当反推滑动整流罩处于收缩位置时，叶栅组件处于外滑动整流罩和内套筒之间。当反推套筒处于展开位置时，叶栅组件暴露于阻流门改向的排气流中。TheT/Rcascadesegmentsaremadeofcompositegraphiteepoxy

material.叶栅是石墨环氧树脂的，属于复合材料。

34CascadeSegments叶栅组件35CascadeSegments

叶栅组件Cascadesegments叶栅组件36ThrustReverser－Torquebox

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

togetherwithlockingactuatorandtheproximitysensorsonthelockingactuatorandthesynclockisattachedtotheloweractuatorwithwirebundleclamps.Theforwardattachmentpointsforthecascadesegmentsareontheaftsideofthetorquebox.

扭矩盒是连接悬挂桁条及底部扣锁桁条的一个半圆形结构。液压锁和非锁定作动筒通过前作动筒平衡环安装于扭矩盒上。展开和收缩液压管道固定于扭矩盒的管夹上。线位传感器（LVDT)和上部作动筒上合为一体,锁定作动筒附近的传感器是用电线束夹子固定在上部作动筒上,而同步锁及其线路策是固定在下部作动筒上。叶栅组件的前端有固定连接点可以连接在扭矩盒的后端。

37Torquebox

扭矩盒Torquebox扭矩盒38T/Rblockerdoorsandblockerdoordraglinks

反推装置阻流门和阻流门拉杆

General概述TheT/Rblockerdoorsandtheblockerdoordraglinksmakeablockageinthefanducttochangethedirectionofthefanairexhaust.

阻流门和阻流门拉杆在反推装置中可以形成一个障碍通道从而控制风扇中的气流流动以改变风扇排气方向WhentheT/Rsleeveisintheforward(retracted)position,theblockerdoorsmakepartofthefanductouterwall.当反推套筒处于向前（收缩）位置时，阻流门成为风扇函道外围的一部分。WhentheT/Rsleeveisintheaft(extended)position,theblockerdoordraglinksmovetheblockerdoorsintothefanduct.当反推套筒处于向后（展开）位置时，阻流门拉杆把阻流门移到风扇函道中（实现变道气流）。TheT/Rcascadesegmentsaremadeofcompositegraphiteepoxy

material.叶栅是石墨环氧树脂的，属于复合材料。39LeftTRsleeve左侧反推整流罩Blockerdoors(5per/halfTR)阻流门（5只/一侧反推整流罩）40Blockerdoor

阻流门41Blockerdoor阻流门

Faceside/正面backside/背面42Blockerdoordraglinks

阻流门拉杆SphericalBearingType43Blockerdoordraglinks

阻流门拉杆44Blockerdoordraglinks

阻流门拉杆Blockerdoordraglinks

阻流门拉杆45

ThrustReverser－Tensionlatches

反推装置-张力锁扣

General

概述Sixtensionlatchesholdthethrustreverserhalvestogether.ThetensionlatchesareatthebottomontheT/Rlatchbeam.6个张力锁扣把两个半部反推装置连结起来。张力锁扣在反推装置扣锁梁底部。46

ThrustReverser－Tensionlatches

反推装置-张力锁扣

47Tensionlatches

张力锁扣Tensionlatches

张力锁扣

48

ThrustReverser–Accessdoor

反推装置-检修门

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

ifthefanairflowthroughtheoutercornerseals,themiddleaccessdooralsoprovidesanoutletfortheair.每个反推装置整流罩（半部）有3个检修门。拆下检查口盖可接近反推装置液压作动筒后连接点。当反推装置在收入位置时，如果有气流通过外角密封装置，位于中间的检修口盖可以为这些气流提供一个出口。49ThrustReverser–Accessdoor

反推装置-检修门50ThrustReverser–Accessdoor

反推装置-检修门Accessdoor(3per/halfTR)

检修门(每只反推3个)51

ThrustReverser–Fireseal

反推装置-防火封严条

General

概述Thefiresealshelptocontainanundercowlfuel-fedfire.

Theupperrubberfiresealsclosesthegapbetweenthestrutstructureandtheupperbifurcationinnerwalls.Thelowerrubberfiresealclosesthegapbetweenthelowerbifurcationinnerwallsoftheleftandrightthrustreverserhalves.Therubberfiresealsalsofunctionasanaerodynamicsealandafluidseal.

防火封严条为反流燃油火焰提供一个容纳空间。顶部防磨防火封严条用来密封吊架结构和顶部歧件的内夹芯缝隙，底部防磨防火封严条用来密封左右反推装置的底部歧件间的内夹芯缝隙。防磨防火封严条同样可作为气流和液体的密封条。52Fireseal

防火封严条53Fireseal

防火封严条

Fireseal防火封严条54

ThrustReverser–Rubstrip

反推装置-耐磨压条

General

概述Rub-stripsaremountedonthecircumferenceofthetorquebox

asawearsurfaceforthefanduct

cowlandthetranslating

sleeves.

耐磨压条位于扭矩盒周围，它可作为风扇函道和滑动整流罩的磨损面。55

Rubstrip

耐磨压条

56Rubstrip

耐磨压条

Rubstrip/耐磨压条57

ThrustReverser–InsulationBlanket

反推装置-隔热毯

General概述Thethermalinsulationblanketsareinstalledonbracketsandstudsthat

areinstalledontheinnersurfaceoftheinnerwall.Theseblanketsareathermalinsulationandfirebarrierwhichisnecessarytokeepthethrustreverserstructurallyserviceableandcandecreasethedamageandrepaircostsfromaductburstorfire.Thethermalinsulationpreventsfireandengineoperationheatdamagetothecompositeinnerwallofthefanductcowl.隔热毯安装于内夹芯内表面的支架钉及紧固件上。隔热毯是隔热及防火的一道屏障，对于反推装置结构的使用性，减少管道破裂或燃烧产生的损伤及维修成本来说，是很必要的。隔热毯可防止火焰和发动机运行产生的热量对风扇函道内夹芯组件复合材料的损害。58InsulationBlanket

隔热毯59InsulationBlanket

隔热毯InsulationBlanket隔热毯60

ThrustReverser–Bullnoseseal

反推装置-圆头封严条

General

概述ThebullnosesealpreventsfanexhaustairflowintotheinnerpartoftheT/RtranslatingsleevewhentheT/Risinthestowposition.Youcanmovethetranslatingsleevesafttogetaccesstothebullnoseseal.

当反推装置在收缩位置时，圆头封严条可防止风扇叶片排出的气流进入反推滑动整流罩的内部。通过移动滑动整流罩尾部可以看