力士乐Rexroth叶片泵R900580382 PV7-1X/16-20RE01MC0-16

工业液压元件：

 液压泵（轴向柱塞泵、径向柱塞泵、外啮合齿轮泵、内啮合齿轮泵、叶片泵），马达（轴向柱塞马达、外啮合齿轮马达），开/关阀（单向阀、电磁阀、换向阀、溢流阀、减压阀、流量控制阀、二通插装阀），高频响比例伺服阀 （比例方向阀、比例溢流阀、比例流量阀、高频响应阀、方向伺服阀、比例插装阀、压力补偿器），电子元件（比例阀放大器、液压泵放大器、控制轴放大器、比例阀七芯插头、传感器插头、电磁阀插头），传感器和信号发生器（压力传感器、电子压力开关、压力继电器、摆角传感器、压力表）；蓄能器（液压蓄能器、隔膜式蓄能器、皮囊式蓄能器），过滤器（油路过滤器、过滤器滤芯）；

力士乐Rexroth、本特利Bently、安沃驰Aventics、威格士VICKERS；迪普马Duplomatic、阿托斯ATOS、派克Parker、油研YUKEN；爱尔泰克AIRTEC、世格ASCO、SMC、费斯托Festo、贝加莱B&R、西门子Siemens、光洋KOYO、欧姆龙Omro

R900580382 PV7-1X/16-20RE01MC0-16

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R987216583 PV7-1X/40-45RE37MC0-16LIM.37,5CC.

R987063461 PV7-1X/40-45RE37MC0-16LIM.38CC.(55LT.)

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R987064864 PV7-1X/40-71RE37MCO08+V7-1X/10-14RE01MC

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R901059512 PV7-1X/40-71RE37MW0-08WH

R987065694 PV7-1X/40-71REMCO08+ PV7-40-45RE37MCO16

R900506808 PV7-1X/63-71RE07MC0-16

R987218893 PV7-1X/63-71RE07MC0-16LIM50CC/G

R987073484 PV7-1X/63-71RE07MC0-16LIM.A60CC/G

R987243968 PV7-1X/63-71RE07MC0-16-Q=90L.1750G.

R987063402 PV7-1X/63-71RE07MC0-1680L/1'-65BAR

R987046385 PV7-1X/63-71RE07MC0-16LIM.75L.1450

R987066973 PV7-1X/63-71RE07MC0-16TARATAA56CC;

R987071429 PV7-1X/63-71RE07MC0-16TARATAA62CC

R987070973 PV7-1X/63-71RE07MC0-16+GH2-2X/006RR07MU2

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R900948499 PV7-1X/63-94RE07MN0-08

R900773233 PV7-1X/63-94RE07MW0-08WH

叶片泵油封被击穿而串油的原因、

认识力士乐叶片泵的朋友都知道，当我们在使用力士乐叶片泵过久后，液压油将叶片泵骨架油封击穿并溢出就产生油封串油，力士乐叶片泵串油会严重影响机器的正常工作。

那么力士乐叶片泵油封被击穿而串油有什么原因？相信不少人是有疑问的，今天上海韦米机电就跟大家解答一下！

一、零部件制造质量较差

1、油封质量，唇口几何形状不合格，缩紧弹簧太松等，造成气密性试验漏气，力士乐叶片泵装入主机后容易使油封被击穿而串油，应更换油封并检验其材质、几何形状及尺寸；

2、力士乐叶片泵、装配质量由于力士乐叶片泵的加工、装配质量有问题，致使齿轮轴回转中心与前盖止口不同心，造成油封偏磨，应检查前盖轴承孔对定位销孔的对称度和位移量、前盖止口对骨架油封孔的同轴度以及骨架油封孔对轴承孔(通孔)的同轴度；

3、密封环材质及加工质量由于密封环材质及加工质量有问题，致使密封环产生裂纹和划伤，造成二次密封不严甚至失效，大量压力油进入骨架油封处(此处为低压通道)来不及回油，因而造成油封被击穿而串油。应检验密封环材质及加工质量；

4、变速器花键轴的内花键与力士乐叶片泵的外花键连接，并一起装在装载机上，如果花键轴花键加工的同轴度超差，会使回转不同心，造成齿轮泵轴摆动，影响油封密封，造成油封串油，应检查和控制花键轴内、外花键的同轴度。

二、力士乐叶片泵与主机的安装质量不合要求

1、力士乐叶片泵与主机的安装达不到要求力士乐叶片泵安装到主机上后，要求其安装的同轴度误差小于0.05mm；

2、如果变速器安装花键轴的端面对花键轴回转中心的跳动超差，会使齿轮泵在高速旋转状态下承受径向力，从而造成油封被击穿而串油，特别是轴套式CBZb泵，齿轮轴承受径向压力会破坏轴套的径向补偿，其危害远大于固定间隙式CBG齿轮泵；

3、部件之间的安装间隙不合要求齿轮泵的前、后泵盖及泵体止口起定位作用，因此配合间隙不能太大;齿轮泵的外花键属于传动装置，配合间隙不宜太小，否则会形成干涉；

4、齿轮泵前盖止口端面与变速器装配端面之间的石棉垫太厚在安装过程中，4个固定螺栓的夹紧力不一致，造成泵的偏斜，影响油封密封。

装配端面之间用石棉垫加密封胶，虽然密封比较可靠，但给维修带来很多不便，加胶后的石棉垫只能一次使用，不论是换齿轮泵或变速泵，每次都要更换石棉垫，建议采用0.6～0.8mm厚的耐油橡胶垫，这样既可密封，使泵的安装偏程度小，还可以重复多次使用，并可减少振动和噪声；

5、花键滚键造成油封串油由于齿轮泵轴花键与变速输出轴内花键有效接触的长度较短，而齿轮泵工作时传递的扭矩是一定的。

齿轮泵工作时花键承受大扭矩而产生挤压磨损甚至滚键，从而产生高温，以致造成骨架油封唇口烧伤、老化、进而被击穿而串油，因此主机在选用齿轮泵时应校核齿轮泵轴花键的强度，并有足够的有效结合长度。

产品报价及货期说明： 因工业液压、自动化各进口品牌备件型号繁多，欧美产品价格货期实时变化，因此很难实时标出准确价格，故具体产品信息、报价及货期请以我公司报价单为准 ,给您带来不便敬请谅解！以上信息由上海韦米公布，终解释权归上海韦米机电设备有限公司所有。感谢您的合作，竭诚为您服务。