气液纠偏系统

气动一液压动力单元HP 015，016，017

操

作

说

明

书

目录

1、设计与功能

2、安装

3、调试

4、维修

5、技术数据

6、系统组件

6. 1 气动边缘探测器

6. 2回中心调解FM 20 01 6. 3 液压缸

Pneumatic-hydraulic power units are used as constituent parts of web guiding systems for laterally positioning running webs or displacing let-off or re-wind stations. These devices have been conceived for guidance by a single edge

气动液压动力单元是作为放卷和收卷的横向边缘定位系统的组成部分，用以定位极片边沿。

1、Design and

function

1、设计与功能

The

pneumatic-hydraulic

power unit is built around

a sealed oil tank (11/Fig .

1). On the top plate of

the tank are found:

气动一液压动力单

元安装在密封油箱（11/

图1）的顶板上：

-3-phase motor

（1/fig. 1）

-三相异步电动机（1/图1）

-Side channel blower

-鼓风机（4）

-Air inlet filter

-空气进气过滤器（5）

-Oil pressure filter

-压力油过滤器（20）

-Air manifold

-空气歧管（11）

-Servo-valve

-伺服阀（21）

-2/2 way valve for when setting the dis-placement guider assembly via

pushbuttons or lock-out.

-2/2油阀（通过按钮设置位移导向组件或锁定）（10/图4）

-2/2way valve(9/Fi g. 1)for air signal connections.

-2/2阀，空气信号连接（9）

The hydraulic gear wheel pump (22 Fig . 1) together with the oil intake filter (23/Fi g . 1) and the pressure regulating valve (xx /Fi g . 1) are found in the oil tank(1/Fi g. 1)

液压齿轮泵（22图0. 1）进油过滤器（23图1）和压力调节阀（XX/ FIĞ. 1）一起安装油箱（1/Fig0. 1）

A、B Hydraulic cylinder connection 液压缸连接口

GL Bias valve for synchronisation of cylinder positioning speed 偏置阀，同步气缸定位速度

OIL Oil inlet with air filter进油口与空气过滤器

R Valve for reponse sensitivity adjustment 调节响应灵敏度阀门

S1 Connections detector for high air

pressure(emitter) 连接探测器高气压（发射）

S3 Connection return-to-centre operator 连接回中装置

S2、S4 Connections detector for low air

pressure(receiver) 连接探测器的低气压（接收）

图2 Internal wiring diagram 内部线路图

To provide the air for the detector, ambient air is drawn through an inlet filter (3/Fig . 2)into the side channel blower (2/fig. 2) and fed to connection S1 of the pneumatic detector FL 1.The detector air pressure can be adjusted by valve R located in the inlet port of the side channel blower to suit the appropriate application (e. 9. thin materials).

为探测器提供的空气，环境空气通过进气过滤器（23 侧通道鼓风机（2/fig。2）并反馈给连接S1的气动探测器FL1。探测器的空气压力可以通过位于进气口的侧通道鼓风机阀R调整，以适应不同的应用场合（E.9。薄膜材料）。

Some of the air under pressure is diverted through the fixed valve

D1 to diaphragm and to detector connection S2. A pressure spring operates in the opposite direction of the diaphragm movement. At the appropriate point at which the air flow in the detector is broken，equal pressure to the diaphragm maintains it in a neutral position and the system is kept in a zero position.

空气在压力下通过固定阀D1 以及膜片转移到探测器连接S2。压力弹簧动作方向和膈肌运动的方向相反。在适当的工作点探测器内的空气流动被打破，膜片两端压力相等保持在一个平衡位置即系统的零点位置。

When the web moves out of line，it causes the air pressure in the detector circuitry to vary. This causes the relationship between the spring and the diaphragm to vary. As a consequence the diaphragm shifts position to achieve a new balance point and in so doing repositions the hydraulic servo-valve. The hydraulic servo-valve in turn admits pressurized control fluid to one end of the servo cylinder and meters fluid from the other end back into the system reservoir. The servo cylinder changes position and thereby alters the web line. When the web returns to its correct running line in the detector, the correct sensing pressure is reestablished，the diaphragm returns to it's neutral position and the air flow to and from the cylinder is cut off. If so required，the power unit can be supplied with a prewired terminal box attached. This contains a contactor，motor，protection switch and terminal strip for the connection