項(xiàng)目1 任務(wù) 5 液壓泵的選用

液壓泵的選用SelectionofHydraulicPump任務(wù)5Task5任務(wù)描述TaskDescription1某液壓設(shè)備平臺(tái)液壓站，如下圖1-5-1所示，已經(jīng)配備兩個(gè)液壓泵，一個(gè)如圖1-5-2a）中變量葉片泵；另外一個(gè)使用了圖1-5-2b)中柱塞泵，那么為什么選擇這兩個(gè)泵，請(qǐng)查閱資料如設(shè)備說(shuō)明書(shū)或者根據(jù)前面所學(xué)的知識(shí)列出理由。Thehydraulicstationofahydraulicequipmentplatform,asshowninFigure1-5-1below,isprovidedwithtwohydraulicpumps.OneisthevariablevanepumpshowninFigure1-5-2a),andtheotheroneistheplungerpumpshowninFigure1-5-2b).Pleaselistthereasonswhythesetwopumpsareselectedbylookinguprelevantmaterialssuchasequipmentspecificationsoraccordingtotheknowledgelearned.圖1-5-1某液壓設(shè)備平臺(tái)液壓站

Figure1-5-1HydraulicStationofaHydraulicEquipmentPlatform任務(wù)描述TaskDescription1液壓泵是液壓系統(tǒng)提供一定流量和壓力的油液動(dòng)力元件,它是每個(gè)液壓系統(tǒng)不可缺少的核心元件,合理的選擇液壓泵對(duì)于降低液壓系統(tǒng)的能耗、提高系統(tǒng)的效率、降低噪聲、改善工作性能和保證系統(tǒng)的可靠工作都十分重要。Thehydraulicpumpisafluidpowerelementthatprovidesacertainflowrateandpressure.Itisanindispensablecoreelementofeveryhydraulicsystem.Selectingasuitablehydraulicpumpisveryimportanttoreduceenergyconsumptionandnoiseofthehydraulicsystem,improvesystemefficiencyandworkingperformance,andensurereliableoperation.圖1-5-2Figure1-5-2a）變量葉片泵b)柱塞泵

a)Variablevanepumpb)Plungerpump任務(wù)描述TaskDescription1選擇液壓泵的原則是:根據(jù)主機(jī)工況、功率大小和系統(tǒng)對(duì)工作性能的要求，首先確定液壓泵的類型，然后按系統(tǒng)所要求的壓力、流量大小確定其規(guī)格型號(hào)，還要考慮價(jià)格、維護(hù)方便與否等問(wèn)題。表格1-1列出了液壓系統(tǒng)中常用液壓泵的主要性能和應(yīng)用場(chǎng)合。Principlesofselectingahydraulicpump:Determinethetypeofhydraulicpumpbasedontheworkingconditionsofthemainmachine,powerandworkingperformancerequiredbythesystem,andthendeterminethespecificationsandmodelaccordingtothepressureandflowraterequiredbythesystemandconsideringthepriceandmaintenance.Table1-1liststhemainperformanceandapplicationscenariosofhydraulicpumpscommonlyusedinhydraulicsystems.任務(wù)描述TaskDescription1表1-1液壓系統(tǒng)中常用液壓泵的性能比較Table1-1PerformanceComparisonofHydraulicPumpsCommonlyUsedinHydraulicSystems任務(wù)描述TaskDescription1任務(wù)實(shí)施Taskimplementation21通過(guò)網(wǎng)絡(luò)查詢液壓泵的選用原則，并進(jìn)行歸納總結(jié)。1Lookuptheselectionprinciplesofthehydraulicpumponline,andsummarizethem.2分組并討論。按照3-5個(gè)人進(jìn)行分組，把常用的液壓泵如葉片泵、齒輪泵、柱塞泵的區(qū)別進(jìn)行歸納總結(jié)。2Groupinganddiscussion:groupsof3-5.Summarizethedifferencesamongcommonlyusedhydraulicpumpssuchasvanepumps,gearpumpsandplungerpumps.3找出常用液壓設(shè)備的液壓站使用的液壓泵的型號(hào)，如數(shù)控車床中的液壓夾緊系統(tǒng)。并寫出選用依據(jù)是什么？3Findoutthemodelofthehydraulicpumpusedinacommonh