路面养护机器简介 毕业论文外文翻译

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1、英文资料翻译PavementMaintenanceMachineIntroductionTheforerunneroftoday’sgenerationofcoldplanersweredevelopedinthe1970’s.Earlymachineswereeitherbasedonagraderorasubgradetrimmingmachine.Machinedesignhasnowsettleddown.Basicparameterssuchaspowertocuttingwidthandweighttocutti

2、ngwidthratioareremainingrelativelyconstant.Today’smachinesarecapableofmuchhigherproductionandthereliabilityofequipmentishigher.Roadmillingmachinesin1984Presentdesignofmachinesfromallmanufacturersconsistofthreebasicsystems.PowerunitThiswillbeadieselenginewhichwillpr

3、ovidepowerforbothforwardmovementonthemachineandtocuttingdrum.Powermaybetransmittedtothecuttingdrumviahydraulicormechanicalsystem.Ingeneraltherewillbebetween1~1.75horsepowerpercmofcuttingwidthofthedtum.CuttingdrumAllmachineswillhaveacuttingdrumandonmachinesof2mdiame

4、terandoverthedrumnormallyhasadiameterofapprox1m.Thisdrumwillbelacedwithaseriesoftungstencarbideteethandingeneraltheseareofthepointattackstyle.Thedrumwillberigidlymountedinaframeordirectlymountedtothechassis.Thedepthofcutiscontrolledbyeithermovingthedrumassemblyupor

5、downorthewholechassissisraisedandloweredonitssupportingwheelsortracks.ConveyingsystemMostofthelargermachinescurrentlymadehavetheirownelevationsystemwherebycutmaterialispickedup,placedonaconveyoranddepositedinawaitingtruck.Alltheabovefunctionsarecontrolledfromonecen

6、tralarea.Onemanwilldriveandoperatethemachine.Itislikelythathewillhaveonemanworkingwithhimwhowillcheckthecuttingdepthfromthegroundandmakenecessaryalterationstothedepthofcut.MethodofoperationofcoldplaningmachinesTherearevirtuallynospecificationswrittenbyanycountrytha

7、tcovercoldplaning.Inmostcountriesamachineiscalledforwhichwillefficientlyremovearoadsurfacetoagivendepthwithagivenaccuracy,normally±3mm.Themethodbywhichthemachinedoesthisisnotusuallyspecifiedwiththeexceptionthatcoldmillingandself-loadingmaybespecified.Oncetheseparam

8、entershavebeensettleditisuptothevariousmanufacturersoftheequipmenttoputforwardwhattheyconsidertobethemosteconomicwayandmostproductivewayofdoingth