Pneumatic screwdrivers are one of the indispensable tools in daily life, and there are many types of them. Today, the editor will introduce you to the relevant knowledge of pneumatic screwdrivers. Pneumatic screwdrivers are driven by compressed air and have been widely used in the manufacturing industry. In order to better use pneumatic screwdrivers, I will introduce you to the operating methods and maintenance knowledge of pneumatic screwdrivers. Only with a better understanding of the operation of screwdrivers can we better use these tools.
Correct operation and maintenance of pneumatic screwdrivers:
Pneumatic screwdrivers are driven by compressed air and are widely used in the manufacturing industry, commonly known as wind drivers. The shell of pneumatic screwdrivers is mostly made of metal material, which has a slightly worse feel than electric ones. The metal shell has better anti-static performance. The correct generation of gas supply system: The intake pressure at the tool inlet (not the outlet pressure of the air compressor) is generally 90PSIG (6.2Kg/cm ^ 2), and too high or too low can damage the performance and lifespan of the tool. The intake air must contain sufficient lubricating oil in order for the pneumatic motor inside the tool to receive sufficient lubrication (a piece of white paper can be placed at the tool exhaust to check for oil stains, which is normal). Try to avoid air containing moisture in the intake air, as it is not appropriate to compress the air without an air dryer.
The speed is generally around 1000-2800r/min, and since the motor is driven by high-pressure gas, long-term and high-frequency operation will not cause overheating. Do not operate the tool after removing its parts arbitrarily, as it may affect the safety of the operator and cause damage to the tool. Torque accuracy: Mechanical braking is used, and changes in air source pressure can affect the stability of the torque of the screwdriver. Therefore, if the error is larger, the general repeatability accuracy is about 5% -3%. If an air conditioner is installed, it will be better. If the tool malfunctions slightly or cannot achieve its original function after use, it cannot be used again and should be checked immediately.
Energy consumption of pneumatic screwdrivers: Using compressed gas as the driving source, as long as the air pipeline is reasonably arranged, the air consumption of each driver is around 0.28 ㎡/min, which is relatively more energy-saving and environmentally friendly. Regularly (approximately once a week) inspect and maintain tools, add grease to rotating parts such as bearings, and add oil to pneumatic motor parts. Maintenance cost: Consumables are relatively low. As long as maintenance and refueling are carried out regularly, it is generally only necessary to replace the fan blades and use various tools within a year. It is necessary to follow various safety regulations and operating instructions. Advantages: Mainly lies in fast working speed, high safety, anti-static, low failure rate, long service life, energy conservation and environmental protection; Disadvantages: Poor hand feel, torque accuracy should refer to the stability of air pressure, and the price of a single one is relatively high. Choose appropriate tools to work with. If the tool is too large, it can cause work injury, while if the tool is too small, it can cause damage to the tool.