上海韦米机电设备有限公司供应力士乐Rexroth单向阀、Rexroth压力继电器、Rexroth方向阀、Rexroth溢流阀、
Rexroth电磁阀、Rexroth节流阀、液压阀、比例阀、比例液压阀、Rexroth 液压产品 Rexroth 静态配置液压阀、比例液压阀、液压阀、REXROTH液压阀力士乐0811系列、力士乐比例阀,比例流量阀 液压阀、叠加式节流阀 两路节流单向阀、力士乐压力指示单元、力士乐柱塞泵,叶片泵,外啮合齿轮泵-液压泵等供应,型号有4WE 、4WM 、DBD 、DR 、ZDB 、Z2FS 系列阀,A4V、A10VS0、A2FO系列柱塞泵,A2FE、A2FM液压马达,HED系列压力继电器。
叶片泵使用不当的十种表现:
01连轴器安装错误
由于连轴器与轴配合间隙太小或无间隙,在用力敲击时,轴承会受伤,导致轴承早期损坏而影响整个泵芯的寿命。再有,连轴器在安装时如果没有一定的轴向间隙,用螺丝直接硬性将泵安装到泵套上,会使轴承轴向受力,如果长期承受轴向受力,轴承会很快损坏并产生偏心而秧及了泵芯,表面上看象是泵芯出了故障,其实始作俑者是轴承。
02同轴度差
如果安装时同轴度过规定值,会使轴承及整个泵芯偏心而早期损坏,轴也会被切断(轴切断在轴头粗的地方),同轴度一般控制在≦0.1毫米左右为好。
03油液太脏
由于油箱不是密封状态,周围粉尘及杂物混入油液中致使油液的清洁度过标准,如果过滤器精度不够或无过滤器,泵芯会很快划伤并损坏。
04油液变质
由于使用了过期的液压油或再生油,使泵芯零件表面呈黑色状或粘胶状,油中的杂物、毒物及腐蚀性可使油泵早期损坏,再生的过期油因缺乏润滑及抗磨性也会使泵芯寿命的缩短,甚至将叶片及泵芯粘死不能运动。
叶片泵常见的一个故障是定子内曲面磨损成撮衣板状的棱子,该现象主要是吸油不畅所致。
原因为:当油泵吸油不足时,压力会时高时低,而叶片部对定子内曲面的有效接触会随着压力的变化而间歇式脱离与接触,频繁的硬冲击使定子的吸油区便出现了象撮衣板状的棱子了。
带压作业叶片泵机械效率高:典型值为0.94,减小了能量损耗; 转速范围宽 - 转速范围为600~2800 rpm(车用型泵为400~2800 rpm),结合在小规格壳体中安装大排量的泵芯组件的方式,可优化工作状态,降低噪声
带压作业叶片泵转速低:(600 rpm,车用型泵为400 rpm)、低压力及高粘度(860 cSt,车用型泵为2000 cSt)运行能力 - 使T6 叶片泵能适应低温工况,功耗小且无卡滞危险; 压力脉动小 - 约±2 bar,由此可减小液压管道的噪声,并延长液压回路中其它元件的使用寿命
叶片泵,叶片泵的种类,叶片泵的结构形式
利用装有叶片的叶轮高速旋转,将机械能转换为液体的动能与压能而工作的泵,称为叶片泵。根据被抽送液体流出叶轮的方向,可分为离心式、轴流式和混流式三种类型。
由于叶片泵效率较高、起动方便、性能可靠,而且、扬程适用范围较大,因此,在工程实际中得到了广泛应用。
上海韦米机电设备有限公司上海韦米机电设备有限公司经营涵盖产品有:
1、气动元件: 气缸和驱动装置、气缸(微型、短行程、型材、锁紧、无杆、标准、波纹管、 导向、旋转型),阀门系统(阀岛、现场总线连接、电磁阀、换向阀、气动阀、 机械阀、电磁阀组、压力调节阀、气动比例阀、止回阀、节流阀、单向阀、 阀、溢流阀),气源处理单元(喷雾润滑器(油雾器)、过滤器、调压阀、过滤器 调压阀、分气块、换向阀、压力表)、传感器(接近传感器、磁接近开关、位移 传感器、压力传感器、压力开关);气动连接件(快接插头、空气软管、气动接 头、电磁阀插头);
2、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);
3、工控自动化: 自动化控制:触摸屏、CPU 模块、I/O 模块、接口模块、电源模块、温度测 量模块、计数功能模块、端子排、伺服驱动器、插入式模块、逆变模块、伺服电 机等;监测保护系统:探头、前置器、变送器、延伸电缆、速度传感器、壳体膨
胀传感器、趋近式探头外壳组件、校验仪、框架模块、电源模块、接口模块、 键相位模块、继电器模块、速度监测模块、
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业务专员:董玄
本公司产品品种多,型号全,质量优,服务好,货期短如有询价、技术咨询、采购等需求请来电联系,上海韦米期待您的来电或上门拜访!真诚合作,竭诚为您服务!!!
上海韦米机电设备有限公司位于上海市浦东新区金桥禹洲,是一家从事经营国外进口液压气动备件、自动化仪表的贸易型公司;专注于中国工业传动自动化流体领域。主营产品电磁阀、柱塞泵、数控模块、伺服电机、可编程控制器、传感器、气动元件、工业仪器仪表等。经营有:博世力士乐rexroth、阿托斯ATOS、迪普马DUPLOMATIC、Parker派克、EATON VICKERS伊顿、贝加莱B&R、西门子Siemens低压、爱尔泰克Airtec气动等进口。 公司本着创业人为本、发展靠科技、管理出效益、信誉一、服务至上的理念。为广大的顾客设计 ,为企业设计效益 ,为社会设计财富 ,为员工设计机遇的发展方向 。我们的理念是让优秀的企业成为我们的客户,让我们的客户成为优秀的企业。公司不仅仅提供的销售服务,同时还建立了完善的售后服务体系,为企业发展中遇到的问题和困难提供指导帮助。我们相信,通过我们的不断努力和追求,一定能够实现与中小企业的互利共赢! 我们热诚欢迎各界朋友来电咨询、实地考察、洽谈业务。