ST型双向闸瓦间隙自动闸调整器车辆制动装置课件

车辆制动装置VehicleBrakingDeviceST型双向闸瓦间隙自动闸调整器Sttypeautomaticbrakeregulatorforclearanceofbidirectionalbrakeshoe主讲人李西安ZHENGZHOURAILWAYVOCATIONAL&TECHNICALCOLLEGELiXi’anSpeakerLiXi’anST型双向闸瓦间隙自动闸调整器（STTwo-wayBrakeGapAutomaticBrakeAdjuster）一、一、ST型闸调器的功用ThefunctionofanSTtypegateregulator1能根据闸瓦间隙的变化，自动地使制动缸活塞行程保持在规定的范围内，保持闸瓦与车轮的间隙正常，确保车辆制动力不衰减，有效地保证了行车安全。Accordingtothechangeofbrakeshoeclearance,thebrakecylinderpistonstrokecanbeautomaticallykeptwithinthespecifiedrange,thegapbetweenbrakeshoeandwheeliskeptnormal,andthebrakingforceofthevehicleisnotattenuated,andthedrivingsafetyiseffectivelyguaranteed.在列车中各车辆的制动缸活塞行程能自动地保持一致，减少了列车的纵向动力作用，使列车的冲击力减小。

Thestrokeofthebrakecylinderpistonofeachvehicleinthetraincanbeautomaticallyconsistent,whichreducesthelongitudinaldynamicactionofthetrainandreducestheimpactforceofthetrain.采用自动调整作用，大大减轻了列检工作人员手工调整制动缸活塞行程的体力劳动，缩短了列检停站技术作业的时间，从而加速车辆周转，提高运输效率。

Theautomaticadjustmentfunctiongreatlyreducesthemanuallaborofthetraininspectionstafftoadjustthepistonstrokeofthebrakecylinder,shortensthetechnicaloperationtimeofthetraininspectionandstop,thusspeedinguptheturnoverofthevehicleandimprovingthetransportationefficiency.23ST型双向闸瓦间隙自动闸调整器（STTwo-wayBrakeGapAutomaticBrakeAdjuster）一、二、ST型闸调器在车辆上的安装ST1-600型闸调器安装在基础制动装置的1位上拉杆处。其左端与改短的上拉杆相连，右端与制动缸前杠杆相连。ST1-600brakeregulatorisinstalledattheupperpullrodof1positionofthefoundationbrakedevice.Itisinstalledattheupperpullrodof1positionofthefoundationbrakedevice.在制动作用的过程中它能依据闸瓦间隙的变化，自动地伸长或缩短，从而使制动缸活塞行程保持在规定的范围内，所以闸调器实际上就是一根能自动伸缩的上拉杆。Intheprocessofbraking,itcanautomaticallyextendorshortenaccordingtothechangeofbrakeshoeclearance,sothatthebrakecylinderpistonstrokeiskeptwithinthespecifiedrange,sothebrakeadjusterisactuallyanautomaticallytelescopicupperpullrod.1一制动缸brakecylinder;2-制动缸后缸杆rearleverofthebrakecylinder;3-控制杆controllever;4-闸调器Lowerlpullrod;5-护管protectionpipe;6-安全托架Safetybracket;7-连接螺母Connectingnut;8-上拉杆接杆Uppertierodconnectingrod;9-下l拉杆Lowerlpullrod10-固定杠杆Fixedlever;11-固定杠杆支点Fixedleverfulcrum;A-控制距离controldistance;$-螺杆工作长度workinglengthofthescrew。ST型双向闸瓦间隙自动闸调整器（STTwo-wayBrakeGapAutomaticBrakeAdjuster）一、ST2-250型闸调器安装在基础制动装置的连接拉杆处。ST2-250gateregulatorisinstalledattheconnectingrodofthefoundationbrakedevice.闸调器的右端与制动缸后杠杆相连，左端与制动缸前杠杆相连。相当于一根能自动伸缩的连接拉杆。Therightendofthebrakeadjusterisconnectedtotherearleverofthebrakecylinder,andtheleftendisconnectedtothefrontleverofthebrakecylinder.Itisequivalenttoaconnectionrodthatcanautomaticallyexpandandexpand.1-调整器regulator;2-控制杆头Controlrodhead;3-控制杆Controllever;4-控制杠杆Controllever;5-上拉杆Upperpullrod;6-制动缸前杠杆Brakecylinderfrontlever。ST型双向闸瓦间隙自动闸调整器（STTwo-wayBrakeGapAutomaticBrakeAdjuster）一、三、ST型闸调器的构造ThestructureofSTtypegateregulatorST型闸调器在构造上由本体部分、控制部分和连接部分等三部分组成。STtypegateregulatoriscomposedofthreeparts:bodypart,controlpartandconnectionpart.本体部分由闸调器体1、拉杆、护管7和螺杆6等组成Thebodypartiscomposedofbrakeregulatorbody1,pullrod,protectionpipe7andscrew6,etc.ST型双向闸瓦间隙自动闸调整器（STTwo-wayBrakeGapAutomaticBrakeAdjuster）一、1．推杆式控制机构适用于制动缸前杠杆传动比(b/a)等于或小于1的车辆。Thepush-rodcontrolmechanismissuitableforcarswithafrontlevertransmissionratio(b/a)equaltoorlessthan1.控制杆头4的上部有一大孔，此孔套在闸调器的拉杆上，能左右滑动。大孔下半圆周有凸出的平面，在闸调器调整动作中与闸调器的后盖端面贴靠，组成离合器f。Theupperpartofthecontrolrodhead4hasalargehole,whichissetonthepullrodofthebrakeadjusterandcanslideleftandright.Thelowerhalfcircumferenceofthelargeholehasaconvexplane,whichisattachedtotherearcoverendfaceofthebrakeregulatorduringtheadjustmentoperation,andconstitutestheclutchf.控制杆头4的下部一个M30的螺纹孔。Controlrodhead4onthelowerpartofanM30threadedhole.控制杆7左端有一段M30的外螺纹，先将锁紧螺母6拧入控制杆，套上弹簧垫圈5，然后拧在控制头的螺纹孔内。ThereisaM30externalthreadattheleftendofthecontrollever7.Firstscrewthelocknut6intothecontrollever,putthespringwasher5onit,andthenscrewitintothethreadedholeofthecontrolhead.控制杆头距离套筒左端的长度应根据安装在车上要求的“A”值来确定。控制杆右端做成扁平面，平面上有一圆孔，用销子与制动缸后杠杆及二位上拉杆连接，连接时须装上垫圈12、螺母及开口销14。Thelengthofthecontrolrodheadfromtheleftendofthesleeveshallbedeterminedaccordingtothe"A"valuerequiredforinstallationonthecar.ST型双向闸瓦间隙自动闸调整器（STTwo-wayBrakeGapAutomaticBrakeAdjuster）一、2．杠杆式控制机构适用于制动缸前杠杆传动比(b/a)大于1的车辆。Thelevercontrolmechanismissuitableforvehicleswiththefrontlevertransmissionratio(b/a)ofthebrakecylindergreaterthan1.在车底架中梁上加焊支座4，支座上有圆孔，将调整螺杆穿过支座上的圆孔，两侧用螺母3及弹簧垫圈固定。Weldsupport4onthemiddlebeamofthecarbottomframe.Thereisaroundholeonthesupport.Passtheadjustingscrewthroughtheroundholeonthesupportandfixitwithnut3andspringwasheronbothsides.调整螺杆的固定端焊有夹口，夹口的圆孔用于安装控制杠杆的一端，用圆销连接。另一端夹口套在闸调器的拉杆上，可左右滑动。Thefixedendoftheadjustingscrewisweldedwithaclamp,theroundholeoftheclampisusedtoinstalloneendofthecontrolleverandisconnectedwitharoundpin.Theotherendoftheclampissetonthepullrodofthebrakeadjuster,whichcanslideleftandright.Theotherendoftheclampissetonthepullrodofthebrakeadjuster,whichcanslideleftandright.控制杠杆中部的圆销孔与制动缸前杠杆上加钻的圆销孔用连接杆2连接。Theroundpinholeinthemiddleofthecontrolleverisconnectedtotheroundpinholedrilledonthefrontleverofthebrakecylinderbyconnectingrod2.控制杠杆中部连接连接杆的圆销孔到端部连接调整螺杆夹口的圆销孔的距离，与制动缸前杠杆连接连接杆的圆销孔到端部连接制动缸活塞杆头部之间的距离都应为a+c。Thedistancebetweentheroundpinholeoftheconnectingrodinthemiddleofthecontrolleverandtheroundpinholeoftheadjustingscrewclampintheendconnection,andthedistancebetweentheroundpinholeoftheconnectingrodinthefrontleverofthebrakecylinderandtheheadoftheconnectingrodintheendconnectionofthebrakecylinder,shallbea+c.制动缸活塞行程的大小与控制杆头的位置有关，在正常缓解状况下，闸瓦与车轮之间的间隙正常时，控制杆头与闸调器体后盖之间有一个适当的距离，这个距离称为控制距离，一般用“A”表示。A值越大，制动缸活塞行程越长；A值越小，制动缸活塞行程越短。Thesizeofthepistonstrokeofthebrakecylinderisrelatedtothepositionofthecontrolrodhead.Undernormalreliefconditions,whenthegapbetweenthebrakeshoeandthewheelisnormal,thereisanappropriatedistancebetweenthecontrolrodheadandthebackcoverofthebrakeregulatorbody.Thisdistanceiscalledthecontroldistanceandisgenerallyexpressedby"A".ST型双向闸瓦间隙自动闸调整器（STTwo-wayBrakeGapAutomaticBrakeAdjuster）一、四、闸调器的作用TheroleofthebrakeregulatorST型闸调器有三个基本作用。TheSTgateregulatorhasthreebasicfunctions.当闸瓦与车轮的间隙正常时Whenthegapbetweenthebrakeshoeandthewheelisnormal闸调器处于间隙正常状态，闸瓦与车轮接触时，控制杆头和外体移动距离之和等于A值，即两者正好相接触，螺杆工作长度不变化。thebrakeadjusterisinthenormalstateofthegap,whenthebrakeshoeandthewheelcontact,thesumofthemovingdistanceofthecontrolrodheadandtheouterbodyisequaltothevalueA,thatis,thetwoareincontactwitheachother,andtheworkinglengthofthescrewdoesnotchange.当闸瓦与车轮间隙大于正常间隙时Whenthegapbetweenthebrakeshoeandthewheelisgreaterthanthenormalgap闸瓦与车轮接触时，控制杆头和外体移动距离之和大于A值，控制杆头与闸调器外体相接触后，继续推动外体使螺杆缩进护管内，螺杆工作长度变短，闸调器的总长缩短。whenthebrakeshoeisincontactwiththewheel,thesumofthemovingdistancebetweenthecontrolrodheadandtheouterbodyisgreaterthanAvalue,andthecontrolrodheadandtheouterbodyofthebrakeadjustercontact,continuetopushtheouterbodytomakethescrewretractedintotheguardtube,theworkinglengthofthescrewbecomesshorter,andthet