Installation and connection method of CY axial piston pump

CY 型轴向柱塞泵系单向旋转泵， 一般均为正向旋转（从轴端看顺时针方向，

The CY type axial piston pump is a one-way rotary pump, which is usually rotated forward (viewed clockwise from the shaft end).

反之为反向； 用户若需反向旋转泵请在订货时说明） 。因此， 安装时应首先注意

If reverse rotation pump is required, please specify when ordering. Therefore, attention should be paid to installation.

旋转方向，进出油口接管也应符合泵上标记要求。注意在泵使用前要向回油口（朝

The direction of rotation, the inlet and outlet nozzle shall also conform to the marking requirements on the pump. Pay attention to the oil return before the pump is used.

上）内加满油。

Fill up the oil.

油泵可以用支架或法兰安装， 泵和原动机应采用共同的基础支座。支架、法

The oil pump can be installed with supports or flanges, and the pump and prime mover shall adopt a common base bearing. Stents, methods

兰和基础都就有足够的刚性，以免油泵运转时产生振动。对于流量大于或等于1

LAN and foundation have enough rigidity to avoid vibration when the oil pump runs. For traffic greater than or equal to 1

60L/min 的泵，由于原动机功率较大，建议不要安装在油箱上。泵的传动轴与原

60L/min pump, because the prime mover power is large, it is advised not to install on the fuel tank. Transmission shaft and original pump

动机的输出轴安装的同轴度误差及其找正方法如下：

The coaxality error of the output shaft of the drive and its alignment are as follows:

（1）支架安装：原动机输出轴与支架安装精度的检查方法见下图；

(1) bracket installation: check method for installation accuracy of output shaft and bracket of prime mover is shown below.

左图中，同轴度误差为Ф0.05 ；右图中，垂直度误差为Ф0.05 （R为泵安

In the left picture, the coaxiality error is 0.05; in the right picture, the perpendicularity error is 0.05 (R is pump safety).

装螺孔分布圆半径）；

The radius of the spiral hole is installed.

（2）法兰安装：在这种安装形式中，如果原动机与泵之间是采用联轴器联

(2) flange installation: in this installation form, if the prime mover and the pump are connected by couplings,

接，则其安装精度检查方法同上图。如果将泵轴直接插入原动机输出轴内， 则其安装精度检查方法见下图。

Then, the installation accuracy inspection method is the same as above. If the pump shaft is directly inserted into the output shaft of the prime mover, the installation accuracy inspection method is shown below.

泵和原动机传动轴之间应尽可能采用弹性联轴器联接， 所用弹性联轴器也应

The elastic coupling should be used as far as possible between the pump and the prime mover drive shaft, and the elastic couplings should also be used.

符合有关标准。推荐采用梅花形联轴器或弹性圆柱销联轴器。以免泵轴承受径向力。推荐用户使用本厂生产的CY-Y型油泵电机组。既方便实用，又可以提高泵的使用寿命。

Meet the relevant standards. It is recommended to use plum blossom coupling or elastic cylindrical pin coupling. In order to avoid pump bearing radial force. It is recommended that users use the CY-Y oil pump motor group produced by our factory. The utility model is convenient and practical, and can improve the service life of the pump.

在工作环境震动不大， 原动机工作又平稳（如电动机） 的情况下可直接采用

It can be used directly when the working environment is not shaking and the prime mover is working smoothly (e.g. motor).

弹性联轴器联接。若原动机震动较大（如柴油机或采用皮带轮、齿轮传动者） 建议按右图方式安装。泵安装支架和原动机的公共基础要有足够的刚度。

Elastic coupling connection. If the prime mover vibrates heavily (e. g. diesel engine or belt wheel or gear drive), it is recommended to install it as shown on the right. The foundation of the pump mounting bracket and prime mover must have enough rigidity.

液压管道安装前应严格清洗， 一般钢管应进行酸洗， 并经中和处理。清洗工

Before installing the hydraulic pipes, they should be strictly cleaned. The general steel pipes should be pickled and neutralized. washer

作应在焊管后进行， 以确保管道清洁。若在高温环境下工作， 应采用有效散热措施，务使泵体的任何外露部分温度不超过80℃（如超过应加装冷却装置）。

The work should be carried out after the welded pipe to ensure that the pipeline is clean. If working in high temperature environment, effective heat dissipation measures should be adopted, so that any exposed part of the pump body temperature does not exceed 80 (, if more than should be installed cooling device).

油泵允许旋转90°安装，也可以立式安装（右图），不管何种安装方法，

The oil pump is allowed to rotate 90 degrees, and it can also be installed vertically (right), no matter what installation method it is.

其泵壳外泄油管均应超过油泵轴承中心线以上，以润滑油泵轴承。

The outer drain pipe of the pump casing should exceed the centerline of the oil pump bearing to lubricate the bearing of the lubricating oil pump.

油泵安装时应尽可能考虑使油箱液面高于泵的进油口（图a）。也可将油泵

When installing the oil pump, consider as far as possible that the liquid level of the tank is higher than that of the pump inlet (Fig. a). Oil pumps can also be used.

装在油箱上自吸（图b）。进油管应尽可能短而粗，弯头最多不超过二个。泵的

Self suction on fuel tank (Fig. b). The intake pipe should be as short and thick as possible, with no more than two elbow. Pump

自吸高度不应大于500mm或自吸真空不大于0.016Mpa。条件许可的话，应尽可

Self suction height should not be greater than 500mm or self suction vacuum is not greater than 0.016Mpa. If conditions permit, we should do everything possible.

能采用如图a 的方法安装油泵。

The oil pump can be installed with the method of figure a.

按图a 方法安装时须注意以下事项：

Attention should be paid to the following items when installing according to Fig. A:

①油箱的最低油面至油泵中心的距离应

(1) the distance between the minimum oil level of the tank and the oil pump center should be

≥300，泵可以小偏角启动自吸；

More than 300, the pump can start self priming at a small deflection angle.

②进油管通径不小于推荐的数值，截止阀的通

2. The diameter of the inlet pipe is not less than the recommended value.

径应比进油管大一档；

The diameter should be larger than the inlet pipe.

③油泵的进油管长度L≤2500mm，管道的弯头不得多于两个，进油管端至油箱侧壁的距离H1≥3D，至油箱底面的距离H≥2D；

(3) The length of the intake pipe of the oil pump L < 2500 mm, the elbow of the pipeline should not be more than two, the distance between the intake pipe end and the side wall of the tank H1 < 3 D, and the distance between the intake pipe end and the bottom of the tank H < 2 D;

④对于流量大于160L/min 的泵推荐采用倒灌自吸。

4. For pumps with a flow greater than 160L/min, self priming is recommended.

在油泵壳体上有二个对称的泄漏油口， 其中一个泄漏油口一定要直接接通油

There are two symmetrical leakage ports on the oil pump housing, one of which must be directly connected to the oil.

箱，另一个可以用螺塞堵住。油泵泄油管背压不超过0.035Mpa以免壳腔压力过

The other box can be blocked by plugs. The back pressure of the oil drain pipe should not exceed 0.035Mpa to avoid the pressure of the shell cavity.

高, 造成轴端橡胶密封漏油。油泵长期小偏角工况下工作，因泄漏较少，不易带走热量应采用强制冷却方法。

High, causing shaft end rubber seal oil leakage. The forced cooling method should be adopted when the oil pump works under the condition of long-term small deflection angle because of less leakage and difficult to take away heat.