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.Basicparameterssuchaspowertocuttingwidthandweig

2、httocuttingwidthratioareremainingrelativelyconstant.Today’smachinesarecapableofmuchhigherproductionandthereliabilityofequipmentishigher.Roadmillingmachinesin1984Presentdesignofmachinesfromallmanufacturersconsistofthreebasicsystems.PowerunitThiswillbeadiese

3、lenginewhichwillprovidepowerforbothforwardmovementonthemachineandtocuttingdrum.Powermaybetransmittedtothecuttingdrumviahydraulicormechanicalsystem.Ingeneraltherewillbebetween1~1.75horsepowerpercmofcuttingwidthofthedtum.CuttingdrumAllmachineswillhaveacuttin

4、gdrumandonmachinesof2mdiameterandoverthedrumnormallyhasadiameterofapprox1m.Thisdrumwillbelacedwithaseriesoftungstencarbideteethandingeneraltheseareofthepointattackstyle.Thedrumwillberigidlymountedinaframeordirectlymountedtothechassis.Thedepthofcutiscontrol

5、ledbyeithermovingthedrumassemblyupordownorthewholechassissisraisedandloweredonitssupportingwheelsortracks.ConveyingsystemMostofthelargermachinescurrentlymadehavetheirownelevationsystemwherebycutmaterialispickedup,placedonaconveyoranddepositedinawaitingtruc

6、k.Alltheabovefunctionsarecontrolledfromonecentralarea.Onemanwilldriveandoperatethemachine.Itislikelythathewillhaveonemanworkingwithhimwhowillcheckthecuttingdepthfromthegroundandmakenecessaryalterationstothedepthofcut.MethodofoperationofcoldplaningmachinesT

7、herearevirtuallynospecificationswrittenbyanycountrythatcovercoldplaning.Inmostcountriesamachineiscalledforwhichwillefficientlyremovearoadsurfacetoagivendepthwithagivenaccuracy,normally±3mm.Themethodbywhichthemachinedoesthisisnotusuallyspecifiedwiththeexcep

8、tionthatcoldmillingandself-loadingmaybespecified.Oncetheseparamentershavebeensettleditisuptothevariousmanufacturersoftheequipmenttoputforwardwhattheyconsidertobethemosteconomicwayandmostproductivewayofdoingth