Analyze the use and maintenance of pneumatic tools

Broadly speaking, pneumatic tools are mainly a tool that uses compressed air to drive the air motor and output kinetic energy to the outside. According to its basic working methods, it can be divided into: 1) Rotary type (eccentric movable blade type). 2) Reciprocating (volumetric piston type) general pneumatic tools are mainly composed of the power output part, the operation form conversion part, the intake and exhaust path part, the operation opening and stop control part, the tool housing, etc. Of course, the pneumatic tool operation must also have Energy supply, air filtration and air pressure regulation, and tool accessories.

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, external output rotary motion, and through The gears drive the whole operation form to transform part of the movement. According to whether the stator and the rotor are concentric, the pneumatic air motor can be divided into a concentric motor and an eccentric motor. According to the number of air intake holes, it can be divided into a single air intake hole motor, a double air intake hole motor, and multiple air intake hole motors. No matter what kind of air motor is used, the compressed air blows the motor blades to drive the rotation of the rotor. When the motor blades rotate at a high speed, it always rubs against the inner wall of the stator. It is the most common wearing part in the motor and therefore it The requirements for the quality of compressed air and the presence of lubricant molecules in compressed air are very high;

2. The conversion of the operating form: It mainly transforms the rotary motion of the motor output. In the automotive industry, due to the large number of threaded connections, most of them are rotary motions, and of course linear reciprocating motions. For different types of pneumatic tools, the operating mode conversion part is mainly divided into mechanical clutches and planetary gear sets, friction plate clutches and planetary gear sets, hydraulic cylinders, torsion bars and hammer hitting block groups. The above components are all important components based on rotary motion. It determines the torque parameters, speed, tightening accuracy and other important parameters of the pneumatic tightening tool. Due to its constant clutch, compression or torque transformation, its components Vulnerable to damage;

3. Intake and exhaust section: Obviously, the intake and exhaust section is the relevant channel for the entry and exit of compressed air, which is the energy supply system that guarantees the normal movement of the motor;

4, the movement of the start and stop control part, that is usually described pneumatic switch, because it is in direct contact with the operator and external objects, and more engineering plastic products, it is prone to damage;

5. Energy supply: Compressed air is mainly formed by the air compressor after compressing the atmosphere. It is transported from the compressed air pipeline to the relevant gas and electricity, and is pulsating.

6. Air filtration and air pressure adjustment: As the compressed air is usually transported through pipes made of seamless steel pipes, the rust on the inner wall, the moisture in the compressed air, and dust will continue to form during long-term use. If such compressed air is directly processed into the air motor without any treatment, the life of the motor will be greatly shortened, resulting in the power output of the entire tool being insufficient and unstable, and being liable to cause damage to the motor and other components. Compressed air sent from the pipeline to the pneumatic tool must be provided with compressed air filtering and regulating devices, and the pneumatic triple-joint is responsible for this task. Pneumatic three-pieces are mainly composed of barometers, filters, oil mist filters, pressure regulators and other parts, in which filters are built-in filter elements, and maintenance cleaning and regular replacement are required after use for a period of time;

7. Tool accessories: The tool attachment here refers to the tool that is directly attached to the workpiece directly on the body of the pneumatic tool. The pneumatic triple piece takes on this task. Pneumatic three-pieces are mainly composed of barometers, filters, oil mist filters, pressure regulators, etc. Filters have built-in filter cartridges. After a certain period of time, maintenance filters and regular replacements are required; such compressed air does not undergo any treatment. , directly into the air motor, will result in greatly shortened motor life, resulting in the power output of the entire tool is insufficient, and unstable, easy to cause damage to the motor and other parts of the chain, for this purpose in the compressed air sent to the pneumatic tools Between them, compressed air filtering and regulating devices must be installed, including various types of pneumatic sleeves, posts, adapters, cutter heads, etc.; the above-mentioned parts are interdependent and mutually restrictive, and cannot be implemented in isolation.