What is the working principle of pneumatic tools
- Power output section: It is one of the main components of pneumatic tools, primarily consisting of a pneumatic motor and a power output gear. It relies on high-pressure compressed air to blow the motor blades, causing the motor rotor to rotate, externally outputting rotational motion, and driving the entire operation form conversion section through gears. According to whether the stator and rotor are concentric, pneumatic motors can be divided into concentric motors and eccentric motors. According to the number of air inlet holes, they can be divided into single-inlet hole motors, double-inlet hole motors, and multi-inlet hole motors. Regardless of the form of pneumatic motor, it relies on compressed air to blow the motor blades to drive the rotor to rotate. When the motor blades rotate at high speed, they constantly rub against the inner wall of the stator. It is the most common wear part in the motor, thus it has high requirements for the quality of compressed air and whether the compressed air contains lubricating oil molecules;
- Operation mode conversion part: It mainly converts the rotary motion output by the motor accordingly. In the automotive manufacturing industry, due to the extensive use of threaded connections, most of which involve rotary motion, there are also linear reciprocating motions. For different types of pneumatic tools, the operation mode conversion part mainly includes mechanical clutches and planetary gear sets, friction plate clutches and planetary gear sets, hydraulic cylinders, torsion bars, and hammer blocks. The above components are all important parts based on rotary motion, which determines important parameters such as the torque size, speed, and tightening accuracy of the pneumatic tightening tool. Due to its constant clutching, compression, or torque transformation, its components are prone to damage;
- Air intake and exhaust system: Obviously, the air intake and exhaust system is the relevant passage for the intake and exhaust of compressed air, and it is the energy supply system that ensures the normal operation of the motor;
- The motion start and stop control part, commonly referred to as the pneumatic switch, is prone to damage due to its constant direct contact with operators and external objects, and its frequent use of engineering plastic products;
- Energy supply section: Compressed air is primarily formed by air compressors compressing atmospheric air, and is delivered to relevant gas-consuming devices through compressed air pipelines, exhibiting a pulsating pattern;
- Air filtration and air pressure regulation section: Since compressed air is typically delivered through pipelines made of seamless steel pipes, over long-term use, rust on the inner walls, moisture, dust, and other contaminants in the compressed air will continuously form. If such compressed air is not treated and directly enters the pneumatic motor, it will significantly shorten the motor’s lifespan, resulting in insufficient and unstable power output from the entire tool, which can easily cause cascading damage to components such as the motor. Therefore, compressed air filtration and regulation devices must be installed between the pipeline delivering compressed air and the pneumatic tool. The pneumatic triplex assembly undertakes this task. The Gongniu pneumatic triplex assembly mainly consists of a pressure gauge, filter, oil mist device, pressure regulator, etc. The filter contains an internal filter element that requires maintenance, cleaning, and regular replacement after a period of use;
- Tool accessories: The term “tool accessories” here refers to the tools that are installed on the pneumatic tool body and come into direct contact with the workpiece. The pneumatic triplex assembly undertakes this task. The pneumatic triplex assembly mainly consists of a pressure gauge, a filter, an oil mist device, a pressure regulator, etc. The filter contains a built-in filter element, which requires maintenance, cleaning, and regular replacement after a period of use. If such compressed air is not treated in any way and enters the pneumatic motor directly, it will greatly shorten the motor’s lifespan, resulting in insufficient and unstable power output from the entire tool, which can easily cause cascading damage to components such as the motor. Therefore, compressed air filtering and regulating devices must be installed between the compressed air piped from the pipeline and the pneumatic tool, including various pneumatic sleeves, extension bars, adapters, cutter heads, etc;
