A10VSO71DFR/31R-PPA12N00 Rexroth柱塞泵是上海韦米机电设备有限公司主要经销产品之一,保证产品【原装正品】,价格优惠,货期短,发货快;常规产品现货供应,放心购买。我公司专业经营国外进口液压气动备件、自动化仪表;主营产品:液压配件、气动元件、柱塞泵、齿轮泵、叶片泵、电磁阀、节流阀、比例阀、溢流阀、换向阀、流量阀;伺服驱动器、伺服模块、伺服电机、探头、传感器、电缆、电源模块、编码器、接近开关等。常规型号产品现货供应,热诚欢迎新老客户来电咨询采购! 常用液压泵的种类: 1、按流量是否可调节可分为:变量泵和定量泵。输出流量可以根据需要来调节的称为变量泵,流量不能调节的称为定量泵。 2、按液压系统中常用的泵结构分为:齿轮泵、叶片泵和柱塞泵3种。 齿轮泵:体积较小,结构较简单,对油的清洁度要求不严,价格较便宜;但泵轴受不平衡力,磨损严重,泄漏较大。 叶片泵:分为双作用叶片泵和单作用叶片泵。这种泵流量均匀、运转平稳、噪音小、作压力和容积效率比齿轮泵高、结构比齿轮泵复杂。 液压泵内部结构图 液压泵内部结构图 柱塞泵:容积效率高、泄漏小、可在高压下工作、大多用於大功率液压系统;但结构复杂,材料和加工精度要求高、价格贵、对油的清洁度要求高。 一般在齿轮泵和叶片泵不能满足要求时才用柱塞泵。还有一些其他形式的液压泵,如螺杆泵等,但应用不如上述3种普遍。 液压泵特点 铝合金制造、强度高、耐腐蚀、重量轻、适合各种环境下作业。 双速特性减少了打压次数,在低压室快速处于负载用功状态,立刻转换成高压,缩短每次作业周期。 配有压力调节阀,可调节控制及设定工作压力。 上海韦米机电设备有限公司位于浦东金桥是全国工业传动流体自动化领域实力较强的经销代理商,有着丰富的气动液压技术服务、工业销售及国际采购的经验,主营产品涉及液压泵阀(电磁阀、柱塞泵拳头产品)、工控产品、驱动模块、伺服电机、可编程控制器PLC、数控传动、传感器系列、电源、气动元件、工业仪器仪表。具体主要经营品牌及产品如下: 博世力士乐rexroth工业液压气动元件大量现货(电磁换向阀、节流阀、单向阀、比例阀、伺服阀、安全溢流阀、流量控制阀、减压阀、调节阀、压力继电器、比例放大板、放大器,轴向柱塞泵、叶片泵、齿轮泵,伺服驱动器、伺服电机,气动元件、气动阀、气缸等),部分系列型号: 电磁阀:4WE6、4WE10、4WE16;电液阀:4WEH10H、4WEH16、4WEH25, 单向阀:S10A、S20A、Z1S、Z2S、SL10、SL20、SV10、SV20、RVP,插装阀:LC、LFA 溢流阀:DB、DBW、DBET、DBD、ZDB、Z2DB,减压阀:DR6DP、DR10DP、ZDR6、ZDR10、DR-4X、DR-5X 节流阀:Z2FS6、Z2FS10、Z2FS16、Z2FS22;调速阀:2FRM5、2FRM10、2FRM16, 平衡阀:FD12FA、FD12PA、FD12KA、FD16FA,继电器:HED80、HED40,电子单元:VT、0811 比例方向阀:4WRA、4WRAE、4WRE、4WREE、4WREEM、4WRH、4WRZ、4WRZE、4WRKE、4WRBKE、4WS2EM 高频响方向阀:4WRPH、4WRPEH、5WRP、5WRPE、4WRREH、4WRP、4WRPE、4WRP(E)H、4WRSE、4WRSEH、4WRPNH、4WRL、4WRLE、4WRVE、4WRGE、4WRL、4WRLE、4WRDE、3WRCBH,伺服系统:HAS、HNL、HCS、HNL 柱塞泵:A4VSO、A10VSO、A2FO,定量马达:A2FM,A4FM,A10FM/E, 齿轮泵:0510、AZPF,叶片泵:PV7 意大利阿托斯ATOS及迪普马DUPLOMATIC、美国Parker派克及EATON VICKERS伊顿 威格士液压、日本YUKEN油研泵阀优势现货系列(电磁阀换向阀、压力开关、柱塞泵、齿轮泵、比例阀、截止阀、开关阀等), 奥地利贝加莱B&R br-automation自动化配品配件货期短现货多(伺服驱动器、触摸屏、工控机、CPU模块、总线控制器、X20\2003\2005\2010系统中各类功能模块等), 美国本特利(Bently Nevada)优势系列(监测模块、前置器、仪表框架、接口模块、延伸电缆、传感器探头、转速表、校验仪等) 西门子Siemens优势主打系列(6SN、6FC、6FX、S7200、电机1FK、S7300、S7400、LOGO 低压电器、软启、熔断器、电源模块、CPU、数控传动) 另销售有德国爱尔泰克Airtec气动元件,APS接近开关,SMC气动元件,倍加福编码器、传感器,欧姆龙低压电器、川崎K3V泵 ,贺德克液压元件、丹佛斯、费斯托全系列产品. 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A10VSO28DR/31R-PPA12N00 A10VSO140DFR1/31R-PPB12N00四孔安装 A10VSO71DFR1/31R-PPA12N00 A10VSO58DFR1/31R-PPA12N00 A10VSO45DFR1/31R-PPA12N00 A10VSO28DFR1/31R-PPA12N00 A10VSO18DFR1/31R-PPA12N00 A10VSO140DFR1/31R-PPB12N00 A10VSO140DFR1/31R-PPB12N00 A10VSO100DR/31R-PPA12N00 A10VSO100DFR1/31R-PPA12N00 A10VSO100DFR1/31R-PPA12N00 A10VSO71DFR1/31R-PPA12N00 A10VSO45DFR1/31R-PPA12N00 A10VSO45DFR1/31R-PPA12N00 A10VSO45DFR1/31R-PPA12N00 A10VSO45DFR1/31R-PPA12N00 A10VSO28DFR1/31R-PPA12N00 A10VSO18DGR/31R-PPA12N00 A10VSO18DFR/31R-PPA12N00 A10VSO18DFR1/31R-PPB12N00 A4VSO125DR/22R-PPB13ND0 A4VSO180DR/30R-PPB13N00 A4VSO71LR2D/20R-PPB1300 A4VSO125HSE/20R-PPH13N00 A4VSO500HSE/20R-PPH13N00 A4VSO125LR2/30R-PPB13N00 A4VSO250DR/30R-PPB13N00 E-A4VSO250DR/30R-PPB13N00 E-A4VSO125DR/30R-PPB13N00 A4VS0125DR/30R-PPB13N00 E-A4VS0125DR/30R-PPB13N00 E-A4VS0125DR/30R-PPB13N00 A4VSO250LR2/30R-PPB13N00 A4VS0180DFE1/30R-PPB13N00 A4VS0180DR/30R-PPB13N00 A4VS0250DR/30R-PPB13N00 A4VSO125DR/30R-PPB13N00 A4VG56EP2DM1/32RNZC02F003DH A4VSO71LR2D/12R-PPB13N00 E-A4VS0180DR/30R-PPB13N00 A4VG56EP2DM1/32RNZC02F003DH A4VSO180DR/30R-PPB13N00 A4VSO-250LR2H/10R-PPB13 A4VSO-125LR2H/10R-PPB13 A4VS0180DFE1/30R-PPB13N00 A4VSO250E01/30R-PPB13N00-S0368+VT5035-1X A4VSO71DR/10R-PPB13N00 A4VS040DR/10R-PPB13N00 A4VSO180DR/22RPPB13N00 A4VS0250DRG/30R-PPB13N00 液压泵原理 是为液压传动提供加压液体的一种液压元件,是泵的一种。它的功能是把动力机(如电动机和内燃机等)的机械能转换成液体的压力能。图中为单柱塞泵的工作原理。凸轮由电动机带动旋转。当凸轮推动柱塞向上运动时,柱塞和缸体形成的密封体积减小,油液从密封体积中挤出,经单向阀排到需要的地方去。当凸轮旋转至曲线的下降部位时,弹簧迫使柱塞向下,形成一定真空度,油 箱中的油液在大气压力的作用下进入密封容积。凸 轮使柱塞不断地升降,密封容积周期性地减小和增 大,泵就不断吸油和排油。 A4VS0125E01K/11RV13N00 A4VS0125E01K/11R-VZB13K34+A4VS0125E01K/11R-VZB13K01 A4VSO250DR/30R-PPB13N00(R910974769) A4VSO250DR/30R-PPB13N00 A4VS0250E02/30R-PPB13N00 A4VSO250DR/30R-PPB13N00 A4VSO71EO2/10R-PPB13N00 A4VS0250DR/30R-PPB13N00 A4VG90HD1D7/32NZF02F021L A4VSO180LR2G/30R-PPB13N00 A4VSO71LR/A(075071) A4VSO250LR3N-(2X) A4VSO180-LR2G/30R-PPB13N00 A4VSO250-LR2G/30R-PPB13N00 E-A4VSO180DR/30R-PPB/13N00 E-A4VSO125DRPPB13N00 A4VSO250-LR2H/30R-PPB13N00 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液压泵是液压系统的动力元件,其功用是给液压系统提供压力油,从能量转换角度讲,它将是原动机(如发动机)输出的机械能转换为便于输送的液体的压力能。液压马达则属于执行元件,它能将输入液体的压力能转换为输出轴转动的机械能,用来拖动负载做功。根据结构形式,液压泵与液压马达具体可分为齿轮式、叶片式、柱塞式等类型。 1.液压泵压力 液压泵工作压力是指泵(或马达)在实际工作时输出(或输入)油液的压力,由外负载决定。 额定压力是指在正常工作条件下,按试验标准规定能连续运转的较高压力。其大小受寿命的限制,若**过额定压力工作,泵(或马达)的使用寿命将会比设计的寿命短。当工作压力大于额定压力时称**载。 2.转速 工作转速是指泵(或马达)在工作时的实际转动速度。 额定转速是指在额定压力下,能连续长时间正常运转的较高转速。若泵**过额定转速工作将会造成吸油不足,产生振动和大的噪声,零件会遭受气蚀损伤,寿命降低。 较低稳定转速是指马达正常运转所允许的较低转速。在此转速下,马达不出现爬行现象。 3.排量、流量 排量是指泵(或马达)每转一周,由密封容腔几何尺寸变化而得的排出(或输入)液体的体积,常用单位是ml/r(毫升/转)。排量可以通过调节发生变化的成为变量泵(或变量马达),排量不能变化的成为定量泵(或定量马达)。 实际流量是指泵(或马达)工作时出口处(或进口处)的流量。由于泵本身存在内泄漏,其实际流量小于理论流量。由于马达本身也存在内泄漏,要实现*转速,为补偿泄漏量,其输入实际流量必须大于理论流量。 4.效率 容积效率,对液压泵是指其实际流量与理论流量的比值。对液压马达是指其理论流量与实际流量的比值。 机械效率,对液压泵是指其理论转矩与实际输入转矩的比值。对液压马达其实际输出的转矩为理论转矩克服摩擦力后的转矩,因此其机械效率为实际输出转矩与理论转矩的比值。 总效率是指泵(或马达)的输出功率与输入功率的比值。总效率等于容积效率与机械效率的乘积。