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Unit2
1.1TextZPMC’STENTECHNOLOGYACHIEVEMENTSOFRTG
Withtherapiddevelopmentofcontainertransporting：
ZPMChasdevelopedstandardrubbery-tyredgantrycranestomeetthecustomers’
highrequirementofsupplyingcraneswithhighqualityandshortdeliverytime.TherearetwokindsofRTGsbasedonwireropereevingsystem?
oneisprovidedwithmechanicalsway-dampingsystemwithfouranti-swaywireropes：
theotheronewitheightanti-swaywireropes(whichcanachievebi—
directionalanti-sway).Throughmodulization,thecraneanditspartsandcomponentscanbestandardizedandcommonlyusedZPMCcanbetterservecustomerswithhigh—
qualityandshortdeliverytime.MeanwhileZPMCcanalsosupplynon-standardheavy-dutyrubber-tyredgantrycraneofhoisting50tand60tload,andRTGshoistingoneoverfourcontainers(1+4)oroneoversixcontainers(1+6)~Besides~wecanprovideothernon-standardrubber—
tyredgantrycranes,suchasRTGwithsixteengantrywheels.1.Principalparameters1)~Rate
dliftingcapacityunderspreader?40LT2)~Ratedliftingheight?18.1m(1over5)3)~Span?
23.47m(77’)4)~Numberofgantrywheels?
8Thedistanceofwheelcentretocentreunderallequalizer?2.5m5)~Wheelbase?
6.9m6)~Liftingspeed?23?46?52m?min7)~Trolleytravelingspeed?70m?
min8)~Gantrytravelingspeed?25?100m?min9)~Spreaderskewing??
5degree10)~Anti-swaytype?mechanicall1)~Spreadermicro-movementwitheightwireropes:
?250mmalonggantrydrivedirectionand?
200mmalongtrolleydrivedirection2.Tennewtechnology
1.GreenRTG
ZPMCadoptssupercapacitor(themaximumofeachis100,000farads)asanenergystoringdevicetobeinsertedintotheelectriccircuit.Thehugeenergycanbestoredandreleasedinstantaneously,andthepeakvaluepowercanbecompensated.Thediesel
engineandgeneratorsetcanbeensuredtooperateunderstablecondition.TheGreenRTGcansuccessfullyprotecttheenvironment.
Ithasthefollowinggoodperformances:1，
Obviousimprovementofdieselengineexhaust.Noblacksmokeappearfromtheexhaustpipe;Particleexhaustthicknessisreducedby90.5%;CO2exhaustthicknessisreducedby35%;Nitrideandoxideexhaustthicknessisreducedby30%;COexhaustthicknessisreducedby13.3%;2，3，
Thenoiseofdieselengineisreducedby4~5dBundersuddenloadcondition.Theenergyconsumptionisreducedby11~13%(inaccordancewiththecomparedoperationdata).4，
Thestabilityofthedieselenginecanbeincreased,anditsservicelifeisextended. 2.ApplicationofGPSonRTG
InordertoensureRTG’
sstraighttraveling,ZPMChasdevelopedGPSonRTG.Itsfeaturesarelistedasfollows:1，
GPScanestablishasetof“simulatingrail”
ontheterminalbymeansofgrounddifferencesystem.Thus,RTG’
sgantryauto-steeringcanbeachieved,andoperators’
fatiguecanbereduced.Theaccuratepositioningofgantrystraighttravelingcanbeaccompli
shedwiththeaccuracyofpositioningupto+/-15mm.2，
ContainerpositionmanagementatyardcanbecarriedoutbyGPSpositioningandremoteinformationtransferringtechnology.Theaccuracyofcontainerpositioninginformationatyardcanbeimproved.3，
ThegantrytravelingspeedcanbeincreasedbymeansofGPS.TheRTGcantravelatfullspeedatfully-loadedyardwithnoworryabouthittingwithcontainers.Thus,theproductivityisincreased.
BiAnti3.Bi-directional(8Ropes)NewAnti-swayTechnology
Thetraditionalhoistingreevingsystemischangedtofourcompletelyidenticalreversetrianglesystemstoincreasetherigidityofhangingsystembyusingthegeometryprincipleoftrianglestability.Theanti-swayfunctioncanbeaccomplishedbythespreader,andthespreader(alsothecontainer)stopsafterthetrolleystartsorbrakes.TheadvantagesofRTGwithbi-directionalanti-wayfunctionareasfollows:
1，
Whenthecontaineris1.5mabovethegroundandthetrolleyorgantrystopsatfullspeed,themaximumswayingdistanceisnotbiggerthan50mm.Buttheanti-swaymechanismonthetraditionalRTGcanhavesuchresultafterswayingfor10seconds.2，Thespreader’
smovementbackandforth,rightandleft,andskewfunctioncanbecarriedoutthroughthespecialdeviceinstalledontheheadblock.Thisgreatlyreducestheoperator’spositioningtime.3，
Becausethespreadercanstopassoonasthetrolley(organtry)stops,thesemi-automationandfull-automationcanbeaccomplishedonRTG.4，
ComparedwiththetraditionRTGthatisprovidedwithnormalmechanicalsway-dampeningmechanism,becausetheRTGwithbi-directionalanti-swayfunctionisnotequippedwithelectricthruster,single-directionalbearing,torquemotorandblower,itcanavoidthehighfaultratehappenedonthetraditionalRTGthatisequippedwithmoremechanicalandelectricparts.Boththedailymaintenanceandrepairingcostsaregreatlyreduced,andthemanpowercostandtheothercostsincludingworkandvesseldelaysarealsogreatlyreduced.
4.RTGWithNoGantryChainDrive
ThegantrydriveonthecurrentRTGintheworldnormallyadoptsmotor,gearreducer,andopentypechaindrive.BecauseoftheincrementofRTG’
sweightandhugeinertiacausedbyabruptbraking,thedrivingchainsareeasilybroken,andtheservicelifeisshortened.ZPMCdevelopedakindofRTGwithfullygeardriving,thatis,thedirectdrivingofthegearreducerisadopted,andthetraditionaldrivingchainsaredeleted.Thefaultrateofthegantrydrivingisgreatlyreduced,andlessgantrydrivingmaintenanceandhighefficiencycanbeensured.
5~GantryTurningJackingDevice
RTGhasfrequentlygantryturning.Duringthegantryturning,thetyresalsoneedtorotate90.Whenthetyresareturningattheirfixedpositions,notonlythetyresurfaceabrasionwillbeincreasedgreatlyunderthebigwheelload(normallybiggerthan25T),butalsothebigstressonthetyreinnersealantandcordfabricwillbebrought.Thus,thetyreservicelifeisshortened.Inordertoextendthetyreservicelife,ZPMCdevelopedgantryturninghydraulicjackingdevice.Whenthegantryisturning,thejackingdevicewillautomaticallyjackupthewholeRTG.Thetyreabrasionisthenreduced,andtheservicelifeisextended(byestimationatleastonetimeofservicelifeisextended).
0
6.GantryWheelBrake
ThetraditionalRTG’
sgantrybrakeisinstalledonthegantrydrivingmotorshaft.Whenanemergency-stopoccurs,thebigforcewillbehappenedonthewholedrivingsystem(thisisthemainreasonofthechainbreakage).ZPMCemulatedautomobileandinstalledwheelbrakesonRTG.WhentheRTGisbraking,thewheelbrakeconsumesthemajorityoftheenergy,andthenthehighspeedshaftbrakesagain.Thewholegantrydrivingsystemhasmuchlowerimpact,andtheservicelifecanbeextended. RTG’7.RTG’sTyreAutomaticPressureMeasuringDevice
Theinsufficienttyrepressureisoneoftheproblemsthatcausesthetyre’
slowservicelife.ZPMCstudiedandfoundthatthemajorityofcurrentlyoperatingRTGswereexistinginsufficienttyrepressure.Itisinconvenienttocheckthetyrepressure.Therefore,ZPMCdevelopedasetoftyreautomaticpressuremeasuringalarmdevicetoremindoperatorsatanytimewhenanytyrehasinsufficientpressureinordertoavoidthetyrerunningwithinsufficientpressure.TheaccidentcausedbytyredamagewhileRTGisoperatingcanalsobeavoided. 8~Double20ftRTG
ThemajorityofRTGsintheworldatpresenthaveliftingcapacityof40Tasonlyone20ftor40ftcontainerishoisted.However,thequaysidecontainercranecanhoisttwo20ftcontainersatonetime,theoperationofcontainercraneandRTGcannotmatcheachother,andthehandlingefficiencyisseriouslyaffected.In2002,ZPMCdevelopedthedouble20ftRTGwhichcanhoisttwo20ftcontainerswithliftingcapacityof60T.Aftertrialoperationfor2years,theperformanceisgood,andtheyardhandlingefficiencyisincreased.
9.RTGWithHighHoistingHeightandEquippedwithElevator
AsforsuchRTGwithstackingheightof7containersandthehoistingheightof24m,onesmallelevatorwillbeequippedtoreduceoperators’
fatigueandensuresafety.Suchsmallelevatorcanonlyholdtwopersons,andisprovidedwithreliablesafetydevice.
10.RTGwith16Wheels
AlongwithcontinuousincreaseofRTG’shoistingcapacityandhoistingheight,theRTG’
swheelloadiskeepingbigger(themaximumwheelloadforACTprojectinHongKongis50T).ZPMCdeveloped16wheelRTGwith8drivingwheelsand4drivingwheelsrespectively.The16wheelRTGhasbroadenedtheapplicationsofRTGwith
highhoistingheightandhandlingoftwocontainers(60T).Thus,theterminalproductivityandutilizationoftheyardcanbeincreased.
1.2NewWordsandExpressions
1.ZPMCZHENHUAPORTMACHINERYCO.,LTD振华港机2.Rubberytyredgantry(RTG)场地轮胎式集
装箱起重机；轮胎吊，3.delivery交货：递交提升4.reeve5.sway；damping摇摆；衰减6.anti
；sway防摇7.bi—directional双向的8.modulization模块化9.principalparameters基
本参数吊具10.spreader小车11.trolley12.skew歪斜：回转13.micro-movement微动
14.instantaneous即刻地山峰：顶峰15.peak16.dieselengine柴油机17.supercapacitor
超级电容法拉(电容量单位)18.farad19.compensate(工)补偿：赔偿(生)酬报
20.GPS(GlobalPositioningSystem)全球定位系统21.simulatingrail虚拟轨道；铁轨，
22.triangle三倍的23.semi-automation半自动化24.cordfabric绳索结构〔液力?起重〕
千斤顶25.hydraulicjacking26.impact加强：系紧：固定27.hoistn.起重机：卷扬机：升
降机v.(用滑轮等，升起：举起28.utilization利用,效用,使用
本文由greatmu贡献
doc文档可能在WAP端浏览体验不佳。建议您优先选择TXT：或下载源文件到本机查看。
Unit2
1.1TextZPMC’STENTECHNOLOGYACHIEVEMENTSOFRTG
Withtherapiddevelopmentofcontainertransporting：
ZPMChasdevelopedstandardrubbery-tyredgantrycranestomeetthecustomers’
highrequirementofsupplyingcraneswithhighqualityandshortdeliverytime.TherearetwokindsofRTGsbasedonwireropereevingsystem?
oneisprovidedwithmechanicalsway-dampingsystemwithfouranti-swaywireropes：
theotheronewitheightanti-swaywireropes(whichcanachievebi—
directionalanti-sway).Throughmodulization,thecraneanditspartsandcomponentscanbestandardizedandcommonlyusedZPMCcanbetterservecustomerswithhigh—
qualityandshortdeliverytime.MeanwhileZPMCcanalsosupplynon-standardheavy-dutyrubber-tyredgantrycraneofhoisting50tand60tload,andRTGshoistingoneoverfourcontainers(1+4)oroneoversixcontainers(1+6)~Besides~wecanprovideothernon-standardrubber—
tyredgantrycranes,suchasRTGwithsixteengantrywheels.1.Principalparameters1)~Rate
dliftingcapacityunderspreader?40LT2)~Ratedliftingheight?18.1m(1over5)3)~Span?
23.47m(77’)4)~Numberofgantrywheels?
8Thedistanceofwheelcentretocentreunderallequalizer?2.5m5)~Wheelbase?
6.9m6)~Liftingspeed?23?46?52m?min7)~Trolleytravelingspeed?70m?
min8)~Gantrytravelingspeed?25?100m?min9)~Spreaderskewing??
5degree10)~Anti-swaytype?mechanicall1)~Spreadermicro-movementwitheightwireropes:
?250mmalonggantrydrivedirectionand?
200mmalongtrolleydrivedirection2.Tennewtechnology
1.GreenRTG
ZPMCadoptssupercapacitor(themaximumofeachis100,000farads)asanenergystoringdevicetobeinsertedintotheelectriccircuit.Thehugeenergycanbestoredandreleasedinstantaneously,andthepeakvaluepowercanbecompensated.Thediesel
engineandgeneratorsetcanbeensuredtooperateunderstablecondition.TheGreenRTGcansuccessfullyprotecttheenvironment.
Ithasthefollowinggoodperformances:1，
Obviousimprovementofdieselengineexhaust.Noblacksmokeappearfromtheexhaustpipe;Particleexhaustthicknessisreducedby90.5%;CO2exhaustthicknessisreducedby35%;Nitrideandoxideexhaustthicknessisreducedby30%;COexhaustthicknessisreducedby13.3%;2，3，
Thenoiseofdieselengineisreducedby4~5dBundersuddenloadcondition.Theenergyconsumptionisreducedby11~13%(inaccordancewiththecomparedoperationdata).4，
Thestabilityofthedieselenginecanbeincreased,anditsservicelifeisextended. 2.ApplicationofGPSonRTG
InordertoensureRTG’
sstraighttraveling,ZPMChasdevelopedGPSonRTG.Itsfeaturesarelistedasfollows:1，
GPScanestablishasetof“simulatingrail”
ontheterminalbymeansofgrounddifferencesystem.Thus,RTG’
sgantryauto-steeringcanbeachieved,andoperators’
fatiguecanbereduced.Theaccuratepositioningofgantrystraighttravelingcanbeaccomplishedwiththeaccuracyofpositioningupto+/-15mm.2，
ContainerpositionmanagementatyardcanbecarriedoutbyGPSpositioningandremoteinformationtransferringtechnology.Theaccuracyofcontainerpositioninginformationatyardcanbeimproved.3，
ThegantrytravelingspeedcanbeincreasedbymeansofGPS.TheRTGcantravelatfullspeedatfully-loadedyardwithnoworryabouthittingwithcontainers.Thus,theproductivityisincreased.
BiAnti3.Bi-directional(8Ropes)NewAnti-swayTechnology
Thetraditionalhoistingreevingsystemischangedtofourcompletelyidenticalreversetrianglesystemstoincreasetherigidityofhangingsystembyusingthegeometryprincipleoftrianglestability.Theanti-swayfunctioncanbeaccomplishedbythespreader,andthespreader(alsothecontainer)stopsafterthetrolleystartsorbrakes.TheadvantagesofRTGwithbi-directionalanti-wayfunctionareasfollows:
1，
Whenthecontaineris1.5mabovethegroundandthetrolleyorgantrystopsatfullspeed,themaximumswayingdistanceisnotbiggerthan50mm.Buttheanti-swaymechanismonthetraditionalRTGcanhavesuchresultafterswayingfor10seconds.2，Thespreader’
smovementbackandforth,rightandleft,andskewfunctioncanbecarriedoutthroughthespecialdeviceinstalledontheheadblock.Thisgreatlyreducestheoperator’spositioningtime.3，
Becausethespreadercanstopassoonasthetrolley(organtry)stops,thesemi-automationandfull-automationcanbeaccomplishedonRTG.4，
ComparedwiththetraditionRTGthatisprovidedwithnormalmechanicalsway-dampeningmechanism,becausetheRTGwithbi-directionalanti-swayfunctionisnotequippedwithelectricthruster,single-directionalbearing,torquemotorandblower,itcanavoidthehighfaultratehappenedonthetraditionalRTGthatisequippedwithmoremechanicalandelectricparts.Boththedailymaintenanceandrepairingcostsaregreatlyreduced,andthemanpowercostandtheothercostsincludingworkandvesseldelaysarealsogreatlyreduced.
4.RTGWithNoGantryChainDrive
ThegantrydriveonthecurrentRTGintheworldnormallyadoptsmotor,gearreducer,andopentypechaindrive.BecauseoftheincrementofRTG’
sweightandhugeinertiacausedbyabruptbraking,thedrivingchainsareeasilybroken,andtheservicelifeisshortened.ZPMCdevelopedakindofRTGwithfullygeardriving,thatis,thedirectdrivingofthegearreducerisadopted,andthetraditionaldrivingchainsaredeleted.Thefaultrateofthegantrydrivingisgreatlyreduced,andlessgantrydrivingmaintenanceandhighefficiencycanbeensured.
5~GantryTurningJackingDevice
RTGhasfrequentlygantryturning.Duringthegantryturning,thetyresalsoneedtorotate90.Whenthetyresareturningattheirfixedpositions,notonlythetyresurfaceabrasionwillbeincreasedgreatlyunderthebigwheelload(normallybiggerthan25T),butalsothebigstressonthetyreinnersealantandcordfabricwillbebrought.Thus,thetyreservicelifeisshortened.Inordertoextendthetyreservicelife,ZPMCdevelopedgantryturninghydraulicjackingdevice.Whenthegantryisturning,thejackingdevicewillautomaticallyjackupthewholeRTG.Thetyreabrasionisthenreduced,andtheservicelifeisextended(byestimationatleastonetim
eofservicelifeisextended).
0
6.GantryWheelBrake
ThetraditionalRTG’
sgantrybrakeisinstalledonthegantrydrivingmotorshaft.Whenanemergency-stopoccurs,thebigforcewillbehappenedonthewholedrivingsystem(thisisthemainreasonofthechainbreakage).ZPMCemulatedautomobileandinstalledwheelbrakesonRTG.WhentheRTGisbraking,thewheelbrakeconsumesthemajorityoftheenergy,andthenthehighspeedshaftbrakesagain.Thewholegantrydrivingsystemhasmuchlowerimpact,andtheservicelifecanbeextended. RTG’7.RTG’sTyreAutomaticPressureMeasuringDevice
Theinsufficienttyrepressureisoneoftheproblemsthatcausesthetyre’
slowservicelife.ZPMCstudiedandfoundthatthemajorityofcurrentlyoperatingRTGswereexistinginsufficienttyrepressure.Itisinconvenienttocheckthetyrepressure.Therefore,ZPMCdevelopedasetoftyreautomaticpressuremeasuringalarmdevicetoremindoperatorsatanytimewhenanytyrehasinsufficientpressureinordertoavoidthetyrerunningwithinsufficientpressure.TheaccidentcausedbytyredamagewhileRTGisoperatingcanalsobeavoided. 8~Double20ftRTG
ThemajorityofRTGsintheworldatpresenthaveliftingcapacityof40Tasonlyone20ftor40ftcontainerishoisted.However,thequaysidecontainercranecanhoisttwo20ftcontainersatonetime,theoperationofcontainercraneandRTGcannotmatcheachother,andthehandlingefficiencyisseriouslyaffected.In2002,ZPMCdevelopedthedouble20ftRTGwhichcanhoisttwo20ftcontainerswithliftingcapacityof60T.Aftertrialoperationfor2years,theperformanceisgood,andtheyardhandlingefficiencyisincreased.
9.RTGWithHighHoistingHeightandEquippedwithElevator
AsforsuchRTGwithstackingheightof7containersandthehoistingheightof24m,onesmallelevatorwillbeequippedtoreduceoperators’
fatigueandensuresafety.Suchsmallelevatorcanonlyholdtwopersons,andisprovidedwithreliablesafetydevice.
10.RTGwith16Wheels
AlongwithcontinuousincreaseofRTG’shoistingcapacityandhoistingheight,theRTG’
swheelloadiskeepingbigger(themaximumwheelloadforACTprojectinHongKongis50T).ZPMCdeveloped16wheelRTGwith8drivingwheelsand4drivingwheelsrespectively.The16wheelRTGhasbroadenedtheapplicationsofRTGwith
highhoistingheightandhandlingoftwocontainers(60T).Thus,theterminalproductivityandutilizationoftheyardcanbeincreased.
1.2NewWordsandExpressions
1.ZPMCZHENHUAPORTMACHINERYCO.,LTD振华港机2.Rubberytyredgantry(RTG)场地轮胎式集
装箱起重机；轮胎吊，3.delivery交货：递交提升4.reeve5.sway；damping摇摆；衰减6.anti
；sway防摇7.bi—directional双向的8.modulization模块化9.principalparameters基
本参数吊具10.spreader小车11.trolley12.skew歪斜：回转13.micro-movement微动
14.instantaneous即刻地山峰：顶峰15.peak16.dieselengine柴油机17.supercapacitor
超级电容法拉(电容量单位)18.farad19.compensate(工)补偿：赔偿(生)酬报
20.GPS(GlobalPositioningSystem)全球定位系统21.simulatingrail虚拟轨道；铁轨，
22.triangle三倍的23.semi-automation半自动化24.cordfabric绳索结构〔液力?起重〕
千斤顶25.hydraulicjacking26.impact加强：系紧：固定27.hoistn.起重机：卷扬机：升
降机v.(用滑轮等，升起：举起28.utilization利用,效用,使用