REXROTH轴向柱塞泵A4VSO355DR/30R-PPB13N00

REXROTH轴向柱塞泵A4VSO355DR/30R-PPB13N00 德国原装博世力士乐REXROTH柱塞泵 变量柱塞泵 原装供应

我公司现货供应博世力士乐（BOSCH-REXROTH）、阿托斯ATOS、派克Parker、迪普马DUPLOMATIC、油研YUKEN;本特利bentley、贝加莱B&R、西门子、光洋KOYO，美国ASCO，美国PARKER派克 等系列进口产品 

REXROTH轴向柱塞泵A4VSO355DR/30R-PPB13N00

进油过程

当凸轮的凸起部分转过去后，在弹簧力的作用下，柱塞向下运动，柱塞上部空间（称为泵油室）产生真空度，当柱塞上端面把柱塞套上的进油孔打开后，充满在油泵上体油道内的柴油经油孔进入泵油室，柱塞运动到下止点，进油结束

回油过程

柱塞向上供油，当上行到柱塞上的斜槽（停供边）与套筒上的回油孔相通时，泵油室低压油路便与柱塞头部的中孔和径向孔及斜槽沟通，油压骤然下降，出油阀在弹簧力的作用下迅速关闭，停止供油。此后柱塞还要上行，当凸轮的凸起部分转过去后，在弹簧的作用下，柱塞又下行。此时便开始了下一个循环。

柱塞泵以一个柱塞为原理介绍，一个柱塞泵上有两个单向阀，并且方向相反，柱塞向一个方向运动时缸内出现负压，这时一个单向阀打开液体被吸入缸内，柱塞向另一个方向运动时，将液体压缩后另一个单向阀被打开，被吸入缸内的液体被排出。这种工作方式连续运动后就形成了连续供油。

泵的泵油机构包括两套准确偶件：柱塞（plunger） 柱塞套(barrel)构成柱塞偶件(plunger and barrel assembly)（图5-11）、出油阀（delivery valve）和出油阀座(delivery valve seat)构成出油阀偶件(delivery valve assembly

柱塞和柱塞套是一对准确偶件，经配对研磨后不能互换，要求有高的精度和光洁度和好的耐磨性，其径向间隙为0.002～0.003mm

柱塞头部圆柱面上切有斜槽，并通过径向孔、轴向孔与顶部相通，其目的是改变循环供油量；柱塞套上制有进、回油孔，均与泵上体内低压油腔相通，柱塞套装入泵上体后，应用定位螺钉定位。

REXROTH轴向柱塞变量泵A4VSO355DR/30R-PPB13N00

技术参数

（适用于矿物油；有关水基液压油的信息见RC 90223；环保型液压油见RC 90221）

进油压力范围

油口S的较好压力（吸油口）

Pabs min 规格250…1000

公称压力350 bar

峰值压力400 bar

特性

-斜轴结构向柱塞变量泵，用于开式回路的静液压传动

-流量与驱动转速和排量成比例。通过调节斜轴可无级调节流量

-斜轴结构向维形柱塞旋转组

-无级可变排量

-结构紧凑固的轴承系统，使用寿命长

-可选择长寿命轴承

-良好的性能重量比

-低飞轮效应

-控制装置产品系列丰富

Pabs max---------------------------------------8 bar

进油压力决定LR功率特性及LR.H和LR.N控制特性的起点。

控制起点由制造商设定为Pabs=1 bar

进油压力的增加导致控制起点升高，因此使控制特性产生平行移位。

此变化的详细信息可根据要求提供。

出油压力范围

油口A或B处的压力

公称压力Pn--------------------------------------350 bar

峰值压力Pmax----------------------------------400 bar

德国力士乐REXROTH柱塞泵 力士乐REXROTH液压油泵特价现货供应型号

力士乐轴向柱塞泵A4VSO40DR/10R-PPB13NOO  

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泵安装要求

1.泵转向改变，则其吸排方向也改变叶片泵都有规定的转向，不允许反。因为转子叶槽有倾斜，叶片有倒角，叶片底部与排油腔通，配油盘上的节流槽和吸、排口是按既定转向设计。可逆转的叶片泵必须专门设计。

2.叶片泵装配配油盘与定子用定位销正确定位，叶片、转子、配油盘都不得装反，定子内表面吸入区部分较易磨损，必要时可将其翻转安装，以使原吸入区变为排出区而继续使用。

3.拆装 注意工作表面清洁，工作时油液应很好过滤。

4. 叶片在叶槽中的间隙太大会使漏泄增加，太小则叶片不能自由伸缩，会导致工作失常。

5.叶片泵的轴向间隙 对ηv影响很大。

1)小型泵-0.015～0.03mm

2)中型泵-0.02～0.045mm

6.油液的温度和粘度 一般不宜超过55℃，粘度要求在17～37mm2/s之间。粘度太大则吸油困难;粘度太小则漏泄严重。

公司专业销售德国力士乐Rexroth产品：A10V、A4V、A2FO、A2FE、A2FM，

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A10VS045DR/52R-PC12N00

A10V045DFR1/31R-PSC62K02

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