Chapter 2 Introduction to Components of Pneumatic Control System

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2-1 Pneumatic Components      

Commonly used pneumatic components

2-2  compressed air supply system     

An Air compressor for the supply of compressed air pneumatic device, according to the principle can be classified as follows:

1.Reciprocating compressor

   Piston compressor

   Diaphragm compressor

　

2.Rotary compressor

   Vane compressor

   Roots compressor

   Screw compressor

　

3.Air-flow compressor

　

   Centrifugal ( radial flow ) compressor

   Axial compressor

2-2-1 Reciprocating compressor P30       

                    

2-2-2 rotary compressor P32       

The use of rotation to compress the air, the output air is relatively stable, which can improve the disadvantages of reciprocating wave pressure

2-2-3 Air-flow compressor P33       

With the high-speed rotation of the rotating blades, the air is accelerated, causing the air velocity and pressure to increase.

　

2-3 Drying of compressed air     

The water content per unit volume of air will increase due to the increase in temperature, and cooling or compression will cause the water molecules in the air to be discharged. The condensed water of the air pressure system therefore often occurs in the gas cylinder and the outlet pipeline.

   

　

2-4 Air storage and pressure accumulator      

2-4.1  Air Receiver

 2-4.2 Accumulator           

2-5 Compressed air generation and air supply pipe      

 

  

 

 

2-6 Conditioning  of compressed air

Compressed air conditioning components include air Filters, Pressure regulators and Lubricator, collectively referred to as three-point combination or three-point.

Air filter (Air cleaner)

Pressure regulator (Pressure regulating valve)      

     

 Lubricator    

 Three-point combination(FRL)         

                  View source image

Yadeke industrial co., Ltd.

　

2-7 Energy conversion mechanism ( Actuator or drive element )      

Components that convert air pressure energy into mechanical energy can be divided into:

1. Linear motion: Pneumatic Cylinder

2. Swing motion: Pneumatic Rotary Cylinder

3. Rotating motion: Pneumatic Motor

Pneumatic Cylinder      

S

 

 

Gold Compressor (professional manufacturer of pneumatic automation)

　

Special type pneumatic cylinder   P54     

1. The rodless pneumatic cylinder (Rodless Cylinder) 

  Features are as follows:

   (1) Can shorten the assembly space

   (2) Lightweight and durable  

   (3) Two-way motion is stable  

   (4) Can produce extra long stroke pneumatic cylinders  

   (5) Can be directly loaded on the connecting frame  

 

　https://www.itsfun.com.tw/%E7%84%A1%E6%A1%BF%E6%B0%A3%E7%BC%B8/wiki-0363002

 

 

2. The  impact pneumatic cylinder   P56   the  

     

3. The  tandem pneumatic cylinder    P57     

     

View source image

4. Multi-position air cylinder  (Multi-Cylinder) P58    

 

      

 Rotary cylinder P59   

 Structure of rotary pneumatic cylinder:

 

 

   

　Rotary Pneumatic Cylinder Video

2-7-2 Installation type of pneumatic cylinder P60    

           The pneumatic cylinder is one of the pneumatic actuating elements for external work, and often requires some brackets to prevent the pneumatic cylinder from being deformed or damaged. Standard brackets that perform work in pneumatic cylinders can be roughly divided into two categories:

 1. Fixed type: The pneumatic cylinder is fixedly installed in a specific position to perform work mainly for transmitting linear force.

 2.  Pivot type: The pneumatic cylinder must change its position frequently when doing work. Generally, a pivotable fulcrum is used to complete the work of a specific path.

 

Asia Machinery.net

 

Pneumatic Motor P62   

 

 

 

 

2-8 Energy converter (pneumatic - hydraulic conversion system)      

( 1 ) Pneumatic- Hydraulic converter

 

 ( 2 ) Pneumatic - hydraulic booster      

 

( 3 ) Pneumatic - Hydraulic feed assembly       

 

2-9 Direction Control Valve        

 Directional control valve is also called a directional valve, and its function is to control the direction of compressed air flow.

   according to different structures can be divided into 5/3 valve (5/3 valve ) , 3/2 on-off valve (3/2 valve ) ......

     like. "Port" refers to the interface of the directional valve,

     and "bit" refers to the number of directional valve body changes.

Common code of interface:

       P : Compressed air entering the component interface is represented by P ( pressure source interface ) ;

       A, B, C : Working pipeline interface of component outlet;

       R, S, T : Exhaust interfaces of components;

       X, Y, Z : Control signal interface of the component.

　

　

2-9-1 Various design types of directional control valve

　

  

　

2-9-2 The function and characteristics of the direction control valve

　

　

2-9-3 The control mode of the directional valve

　

2-9-4 Solenoid valve, SOL

2-10 Check valve ( or Inverse s valve) P83       

 

 

If there is occasional need for a reverse path, a pilot check valve can be used to open it with pilot pressure.

   

Pilot check valve

2-11 Shuttle valve P83       

　

 

 

2-12 Dual-pressure valve  P85     

 

 

2-13 QUICK EXHAUST VALVE P86      

 

2-14 FLOW CONTROL VALVE P87,      

 

 

2-15 Timer valve P89       

2-16 SILENCER  P91          

2-17 PRESSURE SWITCH  P92        

 

2-18 COUNTER P93       

 

           

 + and - type Pneumatic Counter

2-19 Quick connector P94       

 

2-20 Vacuum generator P95       

     

GOTO Chapter 3 Basic Pnaeumatic Control Circuit     

Goto Zulie teacher teaching network Pneumatic Hydraulic control practice

FIN