車輛制動裝置104型分配閥主閥MODEL104DISTRIBUTIONVALVEMAINVALVE主講人Speaker李西安LIXi'anZHENGZHOURAILWAYVOCATIONAL&TECHNICALCOLLEGEVehicleBrakingDevice104型分配閥主閥MainValvefor104TypeDistributingValve

主閥控制著Themainvalvecontrols充氣inflation緩解mitigation制動braking保壓pressure

preservation……作用，是分配閥組成中最主要的部分Itisthemostimportantpartofthedispensingvalvecomposition.它由作用部充氣部均衡部局減閥增壓閥等五個部分組成……Whichiscomposedoffiveparts:operationsection,inflationsection,equalizationsection,quickservicelimitingvalveandintensityvalve.主閥是分配閥的心臟部件，作用部是主閥的核心。Themainvalveistheheartpartofthedistributionvalveandtheactingpartisthecoreofthemainvalve.104型分配閥主閥MainValvefor104TypeDistributingValve作用部/SERVICEPORTION它的用途是根據制動管壓力空氣與壓力風缸壓力空氣之間產生的不同的壓力差，推動主活塞帶動滑閥、節制閥移動到不同的作用位置，實現制動機的充氣、緩解、制動、保壓等作用。Itsuseisbasedonthebrakepipepressureairandpressurecylinderpressureairgeneratedbetweenthedifferentpressuredifferences,topromotethemainpistondrivestheslidevalve,throttlevalvetomovetoadifferentroleintheposition,toachievetheroleofthebrakingmachineinflation,relief,braking,pressureandsoon.104型分配閥主閥MainValvefor104TypeDistributingValve圖5-6作用部零部件外形及組裝圖Outlineandassemblydrawingofoperationdepartment1-主活塞壓板螺母Mainpistonpressureplatenut2-主活塞壓板Mainpistonpressureplate

5-主活塞Themainpiston6-主活塞桿themainpistonrod7-滑閥彈簧及彈簧銷Slidevalvespringsandspringpins8-節制閥彈簧ThrottleValveSpring9-節制閥ControlValve10-滑閥Slidingvalve11-滑閥座Slidevalveseat12-穩定桿Stabilizerbar13-穩定彈簧Stabilityspring14-穩定彈簧座Stabilityspringseat15-擋圈Retainingring104型分配閥主閥MainValvefor104TypeDistributingValve圖5-7104型分配閥滑閥、滑閥座、節制閥上的孔路Model104distributingvalveslidingvalve,slidingvalveseat,orificepathonthrottlevalve104型分配閥主閥MainValvefor104TypeDistributingValve①節制Controll10——局減聯絡槽，用于制動一開始時，溝通第一階段局減通路，將列車管壓力空氣引入局減室L10——quickservicelimitingchannelisusedforcommunicatingthefirststageatthebeginningofbrakingandintroducingthepressureairofthetrainpipeintotheactionroom.104型分配閥主閥MainValvefor104TypeDistributingValve②滑閥Slidingvalve充氣孔，是列車管向工作風缸充氣時壓力空氣所必經的孔，這個孔在滑閥內部有通路與滑閥背面的工作風缸充氣（限制）孔g1相通。L5——airfillingholeistheonlyholethroughthepressureairwhenthetrainpipeisinflatedtotheworkingaircylinder.Thisholehasapassageinsidetheslidingvalvewiththeairfilling(limit)holeg1oftheworkingaircylinderonthebackoftheslidingvalve.l5分別為局減孔和局減室入孔，均為上下貫通孔。

Theyareactionholesandactionroomholes,whichareupperandlowerthroughholes.l6、l7制動一開始時，這兩個孔可通過節制閥上的局減聯絡槽l10連通，將列車管壓力空氣引入局減室，形成第一階段局減通路。

Atthebeginningofbraking,thetwoholescanbeconnectedthroughthequickservicelimitingchannelL10onthecontrolvalveandthetrainpipepressureairisintroducedintotheactionroom,formingthefirststagequickservicelimitingchannel.分別為局減孔和局減室入孔，均為上下貫通孔。Theyareactionholesandactionroomholes,whichareupperandlowerthroughholes.l8、l9用于制動時使列車管壓力空氣引向局減閥，并繼續引入制動缸（當局減閥開啟時），使之產生第二階段局部減壓作用。Theyareusedtodirectthetrainpipepressureairtoquickservicelimitingvalveduringbrakingandcontinuetointroducebrakecylinder(whenquickservicelimitingvalveopens)toproducethesecondstageofpartialpressurerelief.104型分配閥主閥MainValvefor104TypeDistributingValve②滑閥Slidingvalve工作風缸充氣（限制）孔，位于滑閥背面，與滑閥底面上的l5孔在滑閥內部有暗道相通，g1孔徑是1.2mm。Theworkingaircylinderinflation(limit)hole,locatedonthebackofslidingvalve,isconnectedwithL5holethatisonthebottomsurfaceofslidevalve.Theapertureofg1is1.2mm.g1制動孔，上下貫通。制動時使工作風缸壓力空氣引入容積室。brakinghole,whichisconnectedwitheachother.thepressureairoftheworkingaircylinderisgettingintothevolumechamberwhilebraking.r1d1緩解聯絡槽，用于緩解時使滑閥座容積室r2來的容積室壓力空氣流入滑閥座d2孔，然后排入大氣。Reliefcontactgroove,

Itisusedtomakethepressureairinthevolumechamberfromthevolumechamberr2oftheslidingvalveseatflowintotheholed2oftheslidingvalveseatandthenbedischargedintotheatmosphere.104型分配閥主閥MainValvefor104TypeDistributingValve③滑閥座Slidevalveseat經主閥安裝座、中間體通向列車管，為列車管向工作風缸進行充氣用的孔。Throughthemainvalvesettingseatandtheintermediate,itleadstothetrainpipe,whichisaholeforthetrainpipetoinflatetheworkingaircylinder.l2經主閥安裝座、中間體通向列車管，為列車管向局減室或制動缸進行局減的孔。Throughthemainvalvemountingseatandtheintermediate,itleadstothetrainpipe,whichisaholeforthetrainpipetomakequickservicelimitingtotheactionroomorbrakingcylinder.l3r2經主閥安裝座通向中間體內的容積室，為制動時工作風缸壓力空氣引向容積室或在緩解時容積室壓力空氣排入大氣所必經之孔。

Itleadstothevolumechamberintheintermediatethroughthemainvalvemountingseat,whichisthenecessaryholeforthepressureairtoguidetheworkingaircylinderorthepressureairofthevolumechambertobedischargedintotheatmosphereduringrelief.104型分配閥主閥MainValvefor104TypeDistributingValve③滑閥座Slidevalveseat通向局減閥。制動時列車管壓力空氣經此孔流向局減閥，如局減閥處于開放位，則壓力空氣經局減閥繼續流向制動缸。Toquickservicelimitingvalve.Thepressureairinthetrainpipeflowstoquickservicelimitingvalvethroughthisholewhilebraking.Ifquickservicelimitingvalveisintheopenposition,thepressureairwillcontinuetoflowtothebrakecylinderthroughit.Z1d2通大氣，此孔與作用部排氣口d3相通。Totheatmosphere,thisholeisconnectedwiththeexhaustportd3.經主閥安裝座通向中間體內的局減室，初制動時，列車管壓力空氣經此孔流入局減室。

Throughthemainvalvesettingseat,itleadstoactionroomintheintermediatebody,duringtheinitialbraking,thetrainpipepressureairflowsintoactionroomthroughthishole.Ju1這個孔在通向主閥安裝座的通路中，另分出一條通路經縮孔（堵）Ⅰ（φ0.8mm）,此縮孔堵擰在主閥安裝面的螺孔中，并通過主閥墊上的槽路與大氣相通。Thisholeisinthepathleadingtothemainvalvemountingseat,andanotherpathisdividedthroughtheshrinkhole(blocking)I(diameter0.8mm).Thisshrinkholeisscrewedinthescrewholeofthemountingfaceofthemainvalveandisconnectedwiththeatmospherethroughthegrooveonthemainvalvepad.104型分配閥主閥MainValvefor104TypeDistributingValve當主活塞由于兩側壓強差向下或向上移動時，它帶著節制閥9相