ZYJ7型電動(dòng)液壓轉(zhuǎn)轍機(jī)ZYJ7Electro-HydraulicSwitchMachine天津鐵道職業(yè)技術(shù)學(xué)院鐵路信號(hào)基礎(chǔ)設(shè)備維護(hù)高速鐵路道岔轉(zhuǎn)轍設(shè)備結(jié)構(gòu)組成及作用ZY(J)系列電動(dòng)液壓轉(zhuǎn)轍機(jī)(以下簡(jiǎn)稱電液轉(zhuǎn)轍機(jī))是采用電動(dòng)機(jī)驅(qū)動(dòng)、液壓傳動(dòng)方式來轉(zhuǎn)換道岔的一種轉(zhuǎn)轍裝置。ZY(J)系列電動(dòng)液壓轉(zhuǎn)轍機(jī)及其配套的安裝裝置與外鎖閉裝置，能轉(zhuǎn)換、鎖閉各種規(guī)格、型號(hào)的內(nèi)、外鎖閉道岔，并能正確反映尖軌及可動(dòng)心軌轍叉的位置和狀態(tài)。其中ZYJ7型電動(dòng)液壓轉(zhuǎn)轍機(jī)廣泛使用在提速道岔上。（一）電動(dòng)液壓轉(zhuǎn)轍機(jī)型號(hào)及含義電動(dòng)液壓轉(zhuǎn)轍機(jī)型號(hào)及含義如圖所示

ZY(J)serialelectro-hydraulicswitchmachines(hereinafterreferredtoaselectro-hydraulicswitchmachine)areswitchdevicesthataredrivenbyelectricmotorandemployhydraulictransmissiontoworktheturnouts.TheZY(J)series,itssupportinginstallationdevicesandexternallockingdevicecanconvertandlocktheinternalandexternallockingswitchesofvariousspecificationsandmodels,andcancorrectlyreflectthelocationandstatusofthetonguerailrailsandthemovablefrogs.Amongthem,theZYJ7electro-hydraulicswitchmachineiswidelyusedinspeed-increasingturnouts.1.ModelsandImplicationsofElectro-HydraulicSwitchMachinesStructureandFunctionofHigh-SpeedRailwaySwitch高速鐵路道岔轉(zhuǎn)轍設(shè)備結(jié)構(gòu)組成及作用（二）ZYJ7型電液轉(zhuǎn)轍機(jī)結(jié)構(gòu)ZYJ7型電動(dòng)液壓轉(zhuǎn)轍機(jī)由ZYJ7型電液轉(zhuǎn)轍機(jī)（亦稱主機(jī)，用于第一牽引點(diǎn)或單點(diǎn)牽引）和SH6型轉(zhuǎn)換鎖閉器（亦稱付機(jī)，用于第二、第三等牽引點(diǎn)）組成，主機(jī)與付機(jī)共用一套動(dòng)力系統(tǒng)，兩者之間靠油管連接傳輸動(dòng)力。ZYJ7型電液轉(zhuǎn)轍機(jī)、SH6型轉(zhuǎn)換鎖閉器結(jié)構(gòu)圖分別如圖所示2.TheStructureoftheZYJ7Electro-HydraulicSwitchMachinesTheZYJ7electro-hydraulicswitchmachineconsistsoftheZYJ7electro-hydraulicswitchmachine(alsoknownasthemainmachine,usedforthefirsttractiontonguerailorsingletractionpoint)andtheSH6conversionlockmachine(alsoknownastheauxiliarymachine,usedforthesecondandthethirdtractionpoints,etc.).Themainengineandtheauxiliaryshareasetofpowersystem,andthepowergeneratedistransmittedbetweenthetwobyoilpipes.StructureandFunctionofHigh-SpeedRailwaySwitch高速鐵路道岔轉(zhuǎn)轍設(shè)備結(jié)構(gòu)組成及作用（二）ZYJ7型電液轉(zhuǎn)轍機(jī)結(jié)構(gòu)ZYJ7型電動(dòng)液壓轉(zhuǎn)轍機(jī)結(jié)構(gòu)主要分：動(dòng)力機(jī)構(gòu)、轉(zhuǎn)換和鎖閉機(jī)構(gòu)、鎖閉表示機(jī)構(gòu)等組成。1.動(dòng)力機(jī)構(gòu)2.轉(zhuǎn)換鎖閉機(jī)構(gòu)轉(zhuǎn)換鎖閉機(jī)構(gòu)的作用是轉(zhuǎn)換并鎖閉動(dòng)作桿在定位或反位位置。動(dòng)作桿鎖閉后能承受100KN的軸向鎖閉力，它主要由油缸、動(dòng)作桿組、鎖閉鐵等零件組成。3.表示鎖閉機(jī)構(gòu)表示鎖閉機(jī)構(gòu)能正確反應(yīng)尖軌位置，鎖閉桿鎖閉后，能承受30KN以上的軸向力。主要包括接點(diǎn)組、鎖（表示桿）閉桿等零部件。動(dòng)力機(jī)構(gòu)即電機(jī)、油泵組，作用是將電能變?yōu)橐簤耗?，主要由油箱蓋組、左、右溢流板組、連軸器、油泵支架、電機(jī)、慣性輪組、安裝底板、油箱磁鋼組、油泵、油泵回油管（潤(rùn)滑油）組、溢流回油管組等組成。油泵油缸及推板StructureandFunctionofHigh-SpeedRailwaySwitch1.PowermechanismThepowermechanismisthemotorandtheoilpumpunitconvertingelectricalenergyintohydraulicenergy.Itismainlycomposedofthefueltankcovergroup,leftandrightoverflowplategroup,axlecoupler,oilpumpbracket,motor,inertialwheelgroup,installationbaseplate,oiltankmagnetgroup,oilpump,oilpumpreturnpipe(lubricatingoil)group,andoverflowreturnpipegroup,etc.2.TheconversionlocksystemTheconversionlocksystemismainlycomposedofoilcylinder,actuatinglevergroup,lockingironandotherparts,andusedtoswitchtheactuatinglevertothenormalorreversedpositionandlockit.Aftertheactuatingleverislocked,itcanwithstandanaxiallockingforceof100KN.Thehydraulicoildrivesthecylindertomoveleftorright,andsogoestheactuatinglever.Theupperpushplateoftheoilcylinderlockstheactuatingleverinthenormalorreversedposition.3.IndicationlockingsystemComposedbypartslikethecontactgroups,lock(indicationpole)andclosingrod,andetc.,theindicationlockingmechanismcancorrectlyreflect