哈工程轮机英语--Lesson19解读.ppt

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1、Lesson19Cargohandlingequipment(货物装卸设备)HarbinEngineeringUniversityThevariousitemsofmachineryandequipmentcanbefoundoutsideofthemachineryspace.HarbinEngineeringUniversityTheseincludedeckmachinerysuchasmooringequipment(系缆设备),anchorhandlingequipment(抛锚设备),cargohandlingequipmentan

2、dhatchcovers(舱口盖).HarbinEngineeringUniversityOtheritemsincludelifeboats(救生艇)andliferafts(救生筏),emergencyequipment,watertightdoors,valveactuator,stabilizers(减摇装置)andbowthrusters(船头推进器).HarbinEngineeringUniversityThecargohandlingequipmentwillnowbedescribed.HarbinEngineeringUniv

3、ersityCargowinchesareusedwithvariousderrick(吊杆)systemsarrangedforcargohandling.HarbinEngineeringUniversityTheunitisratedaccordingtothesafeworkingloadtobeliftedandusuallyhasadoublespeedprovision(装置)whenworkingathalfload.HarbinEngineeringUniversityInthecargowinch,spurreduction

4、gearingtransfersthemotordrivetothebarrelshaft.HarbinEngineeringUniversityAwarpend(卷绕端)maybefittedforoperatingthederricktoppinglift(顶牵索)(thewirewhichadjuststhederrickheight).HarbinEngineeringUniversityManuallyoperatedbandbrakesmaybefittedandthedrivemotorwillhaveabrakearranged

5、tofail-safe(故障保护),i.e.itwillholdtheloadifpowerfailsorthemachineisstopped.HarbinEngineeringUniversityAderrickrig(装置)isknownas‘unionpurchase’(双杆联吊装置).HarbinEngineeringUniversityOnederrickispositionedoverthequaysideandtheotheralmostverticallyoverthehold(货舱).HarbinEngineeringUni

6、versityToppingwiresfixtheheightofthederricksandstays(稳索)tothedeckmaybeusedtopreventforeandaftmovement.HarbinEngineeringUniversityWinchesDerricksToppingwiresCargohandlingwiresHarbinEngineeringUniversityCargohandlingwiresrunfromtwowinchesandjoinatthehook.HarbinEngineeringUnive

7、rsityAcombinationofmovementsfromtwowinchesenableslifting,transferringandloweringofthecargo.HarbinEngineeringUniversityCraneshavereplacedderricksonmanymodernships.HarbinEngineeringUniversityPositionedbetweentheholds,oftenonaplateformwhichcanberotatedthrough360°,thedeckcranepr

8、ovidesanimmediatelyoperationalunitrequiringonlyonemantooperateit.HarbinEngi