Working principle and advantages of pneumatic tools

Pneumatic tools have:
1. It can be used in explosive, corrosive, high temperature and humid working environment;
2. Overload operation without burning the motor;
3. Simple structure, strong and durable, relatively easy maintenance;
4. High output torque, light weight and high efficiency;
5. It can realize stepless speed regulation and generate rotary, reciprocating and impact movements; It is widely used in modern machinery manufacturing, shipbuilding, automobile manufacturing and many other fields, especially in automobile manufacturing. It is widely used in grinding, polishing, spraying, assembly and other working conditions in the production process of the whole vehicle. It is one of the important tooling equipment that can not be missing in the mass production of modern automobiles. In automobile manufacturing, nearly 90% of the connection form of the whole vehicle assembly is threaded connection, Therefore, pneumatic tightening tools are widely used in vehicle assembly.
In a broad sense, the DR pneumatic tool is mainly a tool that uses compressed air to drive the pneumatic motor and output kinetic energy. Generally, the pneumatic tool is mainly composed of power output part, operation mode conversion part, air inlet and outlet part, operation start and stop control part, tool shell and other main parts. Of course, the operation of the pneumatic tool must also have an energy supply part Air filtering and air pressure regulating parts, tools and accessories, etc.
1. Power output part: it is one of the main components of pneumatic tools, mainly composed of pneumatic motor and power output gear. It relies on high pressure compressed air to blow the motor blades to make the motor rotor rotate, output rotary motion externally, and drive the entire operation form conversion part through the gear. According to whether the stator and rotor are concentric, the pneumatic motor of the pneumatic horse can be divided into concentric motor and eccentric motor. According to the number of air inlets, it can be divided into single air inlet motor, double air inlet motor and multi air inlet motor. No matter what type of pneumatic motor is, the motor blades are driven by compressed air to drive the rotor to rotate. When the motor blades rotate at high speed, they always rub with the inner wall of the stator. It is a common vulnerable part in the motor, so it has high requirements on the quality of compressed air and whether the compressed air contains lubricating oil molecules;
2. Operation form conversion part: it mainly converts the rotation movement output by the motor. In the automobile manufacturing industry, because there are many ways of thread connection, most of them are rotary movements, of course, there are also linear reciprocating movements. For different types of pneumatic tools, the operation form conversion part is mainly divided into mechanical clutch, planetary gear set and friction plate clutch.