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.Basicparameterssuchaspowertocuttingwidthandweighttocutt

2、ingwidthratioareremainingrelativelyconstant.Today’smachinesarecapableofmuchhigherproductionandthereliabilityofequipmentishigher.Roadmillingmachinesin1984Presentdesignofmachinesfromallmanufacturersconsistofthreebasicsystems.PowerunitThiswillbeadieselenginewhichwill

3、providepowerforbothforwardmovementonthemachineandtocuttingdrum.Powermaybetransmittedtothecuttingdrumviahydraulicormechanicalsystem.Ingeneraltherewillbebetween1~1.75horsepowerpercmofcuttingwidthofthedtum.CuttingdrumAllmachineswillhaveacuttingdrumandonmachinesof2mdi

4、ameterandoverthedrumnormallyhasadiameterofapprox1m.Thisdrumwillbelacedwithaseriesoftungstencarbideteethandingeneraltheseareofthepointattackstyle.Thedrumwillberigidlymountedinaframeordirectlymountedtothechassis.Thedepthofcutiscontrolledbyeithermovingthedrumassembly

5、upordownorthewholechassissisraisedandloweredonitssupportingwheelsortracks.ConveyingsystemMostofthelargermachinescurrentlymadehavetheirownelevationsystemwherebycutmaterialispickedup,placedonaconveyoranddepositedinawaitingtruck.Alltheabovefunctionsarecontrolledfromo

6、necentralarea.Onemanwilldriveandoperatethemachine.Itislikelythathewillhaveonemanworkingwithhimwhowillcheckthecuttingdepthfromthegroundandmakenecessaryalterationstothedepthofcut.MethodofoperationofcoldplaningmachinesTherearevirtuallynospecificationswrittenbyanycoun

7、trythatcovercoldplaning.Inmostcountriesamachineiscalledforwhichwillefficientlyremovearoadsurfacetoagivendepthwithagivenaccuracy,normally±3mm.Themethodbywhichthemachinedoesthisisnotusuallyspecifiedwiththeexceptionthatcoldmillingandself-loadingmaybespecified.Oncethe

8、separamentershavebeensettleditisuptothevariousmanufacturersoftheequipmenttoputforwardwhattheyconsidertobethemosteconomicwayandmostproductivewayofdoingth