新版轮机英语unit25Anchorwindlassand-课件

Lesson25AnchorwindlassandMooringwinch

锚机和绞缆机Lesson25Anchorwindlassand1新版轮机英语unit25Anchorwindlassand-课件2新版轮机英语unit25Anchorwindlassand-课件3Anchorhandlingequipment

Thewindlass（锚机）istheusualanchorhandlingdevicewhereonemachinemaybeusedtohandlebothanchor.AnchorhandlingequipmentThe4Amorerecentdevelopment,particularlyonlargevessels,isthesplitwindlasswhereonemachineisusedforeachanchor.Amorerecentdevelopment,pa5Oneunitofasplitwindlass(分离式锚机）isshowninFig.25-1.Oneunitofasplitwindlass(分6新版轮机英语unit25Anchorwindlassand-课件7Therotatingunitsconsistofacablelifter(锚链轮）withshapedsmug（凸起）togriptheanchorcable（锚链）,Therotatingunitsconsistof8amooringdrum（绞缆筒）forpayingout（放松）orlettinggo（放出）ofmooringwiresandawarpendforwarpingduties.amooringdrum（绞缆筒）forpaying9Eachoftheseunitsmaybeseparatelyengaged（啮合）ordisengagedbymeansoradogclutch（牙嵌离合器）,althoughthewarpendisoftendriveninassociationwiththemooringdrum.Eachoftheseunitsmaybesepa10Aspurgear（正齿轮）assemblytransmitsthemotordrivetoshaftwherethevariousdogclutchesenablethepowertake-off.Aspurgear（正齿轮）assemblytran11Separatebandbrakes（独立式刹车）arefittedholdthecablelifterandthemooringdrum（绞缆筒）whenthepowerisswitchedoff.Separatebandbrakes（独立式刹车）ar12新版轮机英语unit25Anchorwindlassand-课件13Thecablelifterunit（锚链轮）,showinFig.25-1,ismountedsoastoraiseandlowerthecablefromthespurlingpipe（锚链管）,whichisatthetopandcenterofthechainorcablelocker（锚链舱）.

Thecablelifterunit（锚链轮）,s14Detailsofthesnugs（卡块）usedtogripthecableandbandbrake（带式刹车）canbeseen.Detailsofthesnugs（卡块）used15Anchorcapstans（起锚绞盘）areusedinsomeinstallationswherethecablelifterrotatesaboutaverticalaxis.

Anchorcapstans（起锚绞盘）areused16新版轮机英语unit25Anchorwindlassand-课件17Onlythecablelifterunitislocatedondeck,thedrivingmachinery（驱动机械）beingonthedeckbelow.

Onlythecablelifterunitis18Awarpingendorbarrelmaybedrivenbythesameunitandispositionednearthecablelifter.Awarpingendorbarrelmaybe19Theefficientworkingoftheanchorwindlassisessentialtothesafetyoftheship.Ananchorwindlasscanexpecttofulfill（满足）thefollowing:Theefficientworkingofthea201.Thewindlasscablelifterbrakesmustbeabletocontroltherunninganchorandcable

whenthecablelifterisdisconnectedfromthegearduring“lettinggo”（放锚）.1.Thewindlasscablelifterbr21Averagecablespeedsvarybetween5-7m/secduringthisoperationAveragecablespeedsvarybetw222.Thewindlassmustbeableheaveacertainweightofcableataspecifiedspeed（额定转速）.2.Thewindlassmustbeablehe23This“fullload”dutyofthewindlassvariesbutiscommonlybetween4and6timestheweightofoneanchor,thespeedofhaulbeingatleast9m/minupto15m/min.This“fullload”dutyofthew243.Thebrakingeffort（刹车效果）obtainedatthecableliftermustbeatleastequalto40percentofthebreakingstrengthofthecable.3.Thebrakingeffort（刹车效果）obt25Mostanchorhandingequipmentsincorporate（包含）warpendsformooringpurposes（系泊）andlinespeedsofupto0.75to1.00m/secarerequired.Mostanchorhandingequipments26Themostconventionaltypesofequipmentinuseareasfollows.Themostconventionaltypesof27WindlassesThisequipmentisself-contained（独立的）andnormallyoneprimemoverdrivestwocableliftersandtwowarpends（绞缆端）,WindlassesThisequipmentisse28thelattermaynotbedeclutchable（离合装置）and,ifso,rotatewhenthecableliftersareengaged.thelattermaynotbedeclutch29Thereissomevariationindetaildesignofcableliftersandintheirdrives.Thereissomevariationindet30Duetothelowspeedofrotationrequiredofthecablelifterwhilstheavinganchor,Duetothelowspeedofrotati31(345r/min)ahighgearreduction(齿轮减速机构）isneededwhenthewindlassisdrivenbyahighspeedelectricofhydraulicmotor.(345r/min)ahighgearreducti32Thisisgenerallyobtainedbyusingahighratiowormgear（涡轮）followedbyasinglestepofspurgears（单级正齿轮）betweenthewarpendshaftandcablelifters.Thisisgenerallyobtainedby33Alternatively,multistepsofspurgearsareused.Alternatively,multistepsof34Capstans（起锚机）withthistypeofequipmentthedrivingmachineryissituatedbelowdeckandthecableliftersaremountedhorizontallybeingdrivenbyverticalshafts.Capstans（起锚机）withthistypeo35MooringwinchesMooringwinchesprovidethefacilityfortensioningthewireuptothestallingcapacity（堵转转矩）ofthewinch（绞车）,usually1.5timesfullload（全负荷）,MooringwinchesMooringwinches36thereaftertheloadisheld（握持）bytheprimemoverbrakeorbarrelbrakewhenthepowerisshutoff.thereaftertheloadisheld（握持37Thewinchcannotpayoutwireunlessthebrakeisoverhauled（超越）orrecoverwireunlessmanuallyoperated,thuswiresmaybecomeslack.Thewinchcannotpayoutwire38Themajorityofautomaticmooringwinches（自动系缆机）arespurgeared（正齿轮）toimprovethebackwardefficiencyofthegeartrainforrendering,Themajorityofautomaticmoor39thegearing（齿轮机构）andbearingsbeingtotallyenclosedandlubricatedfromtheoilsump.thegearing（齿轮机构）andbearings40Onlargermooringwincheswhereabarrelbrakeisfitted,itisnowcommonpracticetodesignthebraketowithstandthebreakingstrengthofthemooringwire.Onlargermooringwincheswher41Wormgeared（涡轮蜗杆）automaticmooringwinchesareuncommonWormgeared（涡轮蜗杆）automaticmo42asthemultistart（多次起动）featurerequiredtoimprovegearefficiencyreducesthemainadvantageofthewormgeari.ethehighgearratio（传动比较高）.asthemultistart（多次起动）featur43Wincheswithvariousarrangementsofbarrelsaretheusualmooringequipmentusedonboardships.Wincheswithvariousarrangeme44AmooringwinchisFig.25-2wherethevariouspartscanbeidentified.AmooringwinchisFig.25-2wh45Thewinchbarrelordrumisusedforhauling（收紧）inorlettingoutthewiresorropeswhichwillfastentheshiptotheshore.Thewinchbarrelordrumisus46Thewarpendisusedwhenmovingtheshipusingropesorwiresfastenedtobollards（系缆桩）ashoreandwraparoundthewarpendoftilewinch.Thewarpendisusedwhenmovi47新版轮机英语unit25Anchorwindlassand-课件48Theconstructionofamooringwinchwillnowbeexamined,againwithrespecttoFig.25-2.Theconstructionofamooring49Themotordriveispassedthroughaspurgeartransmission（直齿轮传动机构）,aclutchandthustothedrum（卷筒）andwarpend.Themotordriveispassedthro50Asubstantial（坚实的）framesupportstheassemblyandabandbrakeisusedtoholdthedrumwhenrequired.Asubstantial（坚实的）framesuppo51Thecontrolarrangementsforthedrivemotorpermitforwardorreverserotationtogetherwithaselectionofspeedsduringoperation.Thecontrolarrangementsfort52Modernmooringwinchesarearrangedasautomaticselftensioningunits（自动张紧装置）.Modernmooringwinchesarearr53Theflowofthetides（潮）orchangesindraught（吃水）duetocargooperationsmayresultintensioningorslackeningofmooringwires.Theflowofthetides（潮）orch54Toavidconstantattentiontothemooringwirestheautomaticselftensioningarrangementprovidesforpayingout(releasing)orrecoveringwirewhenapre-settensionisnotpresent.Toavidconstantattentionto55Lesson25AnchorwindlassandMooringwinch

锚机和绞缆机Lesson25Anchorwindlassand56新版轮机英语unit25Anchorwindlassand-课件57新版轮机英语unit25Anchorwindlassand-课件58Anchorhandlingequipment

Thewindlass（锚机）istheusualanchorhandlingdevicewhereonemachinemaybeusedtohandlebothanchor.AnchorhandlingequipmentThe59Amorerecentdevelopment,particularlyonlargevessels,isthesplitwindlasswhereonemachineisusedforeachanchor.Amorerecentdevelopment,pa60Oneunitofasplitwindlass(分离式锚机）isshowninFig.25-1.Oneunitofasplitwindlass(分61新版轮机英语unit25Anchorwindlassand-课件62Therotatingunitsconsistofacablelifter(锚链轮）withshapedsmug（凸起）togriptheanchorcable（锚链）,Therotatingunitsconsistof63amooringdrum（绞缆筒）forpayingout（放松）orlettinggo（放出）ofmooringwiresandawarpendforwarpingduties.amooringdrum（绞缆筒）forpaying64Eachoftheseunitsmaybeseparatelyengaged（啮合）ordisengagedbymeansoradogclutch（牙嵌离合器）,althoughthewarpendisoftendriveninassociationwiththemooringdrum.Eachoftheseunitsmaybesepa65Aspurgear（正齿轮）assemblytransmitsthemotordrivetoshaftwherethevariousdogclutchesenablethepowertake-off.Aspurgear（正齿轮）assemblytran66Separatebandbrakes（独立式刹车）arefittedholdthecablelifterandthemooringdrum（绞缆筒）whenthepowerisswitchedoff.Separatebandbrakes（独立式刹车）ar67新版轮机英语unit25Anchorwindlassand-课件68Thecablelifterunit（锚链轮）,showinFig.25-1,ismountedsoastoraiseandlowerthecablefromthespurlingpipe（锚链管）,whichisatthetopandcenterofthechainorcablelocker（锚链舱）.

Thecablelifterunit（锚链轮）,s69Detailsofthesnugs（卡块）usedtogripthecableandbandbrake（带式刹车）canbeseen.Detailsofthesnugs（卡块）used70Anchorcapstans（起锚绞盘）areusedinsomeinstallationswherethecablelifterrotatesaboutaverticalaxis.

Anchorcapstans（起锚绞盘）areused71新版轮机英语unit25Anchorwindlassand-课件72Onlythecablelifterunitislocatedondeck,thedrivingmachinery（驱动机械）beingonthedeckbelow.

Onlythecablelifterunitis73Awarpingendorbarrelmaybedrivenbythesameunitandispositionednearthecablelifter.Awarpingendorbarrelmaybe74Theefficientworkingoftheanchorwindlassisessentialtothesafetyoftheship.Ananchorwindlasscanexpecttofulfill（满足）thefollowing:Theefficientworkingofthea751.Thewindlasscablelifterbrakesmustbeabletocontroltherunninganchorandcable

whenthecablelifterisdisconnectedfromthegearduring“lettinggo”（放锚）.1.Thewindlasscablelifterbr76Averagecablespeedsvarybetween5-7m/secduringthisoperationAveragecablespeedsvarybetw772.Thewindlassmustbeableheaveacertainweightofcableataspecifiedspeed（额定转速）.2.Thewindlassmustbeablehe78This“fullload”dutyofthewindlassvariesbutiscommonlybetween4and6timestheweightofoneanchor,thespeedofhaulbeingatleast9m/minupto15m/min.This“fullload”dutyofthew793.Thebrakingeffort（刹车效果）obtainedatthecableliftermustbeatleastequalto40percentofthebreakingstrengthofthecable.3.Thebrakingeffort（刹车效果）obt80Mostanchorhandingequipmentsincorporate（包含）warpendsformooringpurposes（系泊）andlinespeedsofupto0.75to1.00m/secarerequired.Mostanchorhandingequipments81Themostconventionaltypesofequipmentinuseareasfollows.Themostconventionaltypesof82WindlassesThisequipmentisself-contained（独立的）andnormallyoneprimemoverdrivestwocableliftersandtwowarpends（绞缆端）,WindlassesThisequipmentisse83thelattermaynotbedeclutchable（离合装置）and,ifso,rotatewhenthecableliftersareengaged.thelattermaynotbedeclutch84Thereissomevariationindetaildesignofcableliftersandintheirdrives.Thereissomevariationindet85Duetothelowspeedofrotationrequiredofthecablelifterwhilstheavinganchor,Duetothelowspeedofrotati86(345r/min)ahighgearreduction(齿轮减速机构）isneededwhenthewindlassisdrivenbyahighspeedelectricofhydraulicmotor.(345r/min)ahighgearreducti87Thisisgenerallyobtainedbyusingahighratiowormgear（涡轮）followedbyasinglestepofspurgears（单级正齿轮）betweenthewarpendshaftandcablelifters.Thisisgenerallyobtainedby88Alternatively,multistepsofspurgearsareused.Alternatively,multistepsof89Capstans（起锚机）withthistypeofequipmentthedrivingmachineryissituatedbelowdeckandthecableliftersaremountedhorizontallybeingdrivenbyverticalshafts.Capstans（起锚机）withthistypeo90MooringwinchesMooringwinchesprovidethefacilityfortensioningthewireuptothestallingcapacity（堵转转矩）ofthewinch（绞车）,usually1.5timesfullload（全负荷）,MooringwinchesMooringwinches91thereaftertheloadisheld（握持）bytheprimemoverbrakeorbarrelbrakewhenthepowerisshutoff.thereaftertheloadisheld（握持92Thewinchcannotpayoutwireunlessthebrakeisoverhauled（超越）orrecoverwireunlessmanuallyoperated,thuswiresmaybecomeslack.Thewinchcannotpayoutwire93Themajorityofautomaticmooringwinches（自动系缆机）arespurgeared（正齿轮）toimprovethebackwardefficiencyofthegeartrainforrendering,Themajorityofautomaticmoor94thegearing（齿轮机构）andbearingsbeingtotallyenclosedandlubricatedfromtheoilsump.thegearing（齿轮机构）andbearings95Onlargermooringwincheswhereabarrelbrakeisfitted,itisnowcommonpracticetodesignthebraketowithstandthebreakingstrengthofthemooringwire.Onlargermooringwincheswher96Wormgeared（涡轮蜗杆）automaticmooringwinchesareuncommonWormgeared（涡轮蜗杆）automaticmo97asthemultistart（多次起动）featurerequiredtoimprovegearefficiencyreducesthemainadvantageofthewormgeari.ethehighgearratio（传动比较高）.asthemultistart（多次起动）featur98Wincheswithvariousarrangementsofbarrelsaretheusualmooringequipmentusedonboardships.Wincheswithvariousarrangeme99AmooringwinchisFig.25-2wherethevarious