Introduction to the principle and usage of pneumatic wrench

In the process of industrial production and mechanical maintenance, it is often necessary to use certain hardware tools, including pneumatic wrenches. Those who are familiar with the Hardware Tools Collection may know that the pneumatic wrench is an important hardware tool, which has low energy consumption but can play a very important role. Today, we will introduce the principle and usage of pneumatic tools.
Principle and usage of pneumatic wrench
1、 Principle of pneumatic wrench
Impact wrench, also known as ratchet wrench and electric tool assembly, is mainly a tool that provides high torque output with low Z consumption. It accelerates the rotation of an object with a certain mass through a continuous power source, and then immediately hits the output shaft, so as to obtain a relatively large torque output.
Compressed air is the common power source of Z, but there are also electric or hydraulic power sources. In recent years, the use of batteries is also very popular.
Pneumatic wrenches are widely used in many industries, such as automobile repair, heavy equipment maintenance, product assembly (usually referred to as "pulse tools" and specially for precise torque output), major construction projects, installation of steel wire inserts, and high torque output needs anywhere else.
Pneumatic wrenches are available in every standard ratchet socket drive size, ranging from small 1/4 "drive tool groups for assembly and disassembly to 3.5" drive.
Pneumatic wrench is generally not applicable to the fastening of mounting parts with ceramic or plastic fastening parts.
2、 Usage of pneumatic wrench
Pneumatic torque wrench is a torque wrench with high-pressure air pump as the power source. A torque multiplier with three or more epicyclic gears is driven by one or two powerful pneumatic motors. The torque is controlled by adjusting the gas pressure. In order to allow specific torque demand settings, each tool is equipped with a special comparison chart and correction report for the torque of the air pressure. For further application, the pneumatic torque wrench can be equipped with a torque sensor to make the output torque more accurate. After obtaining the required torque, the air supply can be shut down manually or automatically using a suitable loop system.
The pneumatic wrench is a hand-held rotary pneumatic tool, which can accurately set the torque and is used to complete the locking or removal of nuts and bolts; The control part is realized by voltage regulator and power management system, and the mechanical part adopts planetary gear reducer. The operation of the pneumatic torque wrench is quiet - less than 85dB (A), absolutely without impact, reducing the damage to tools, sleeves and locked objects. These two factors can make the users of tools operate comfortably, reduce fatigue, and improve safety. The torque Z can reach 300000N. m.
The pneumatic torque wrench provides accurate torque control - the repeatability is ± 5%, equipped with sensor+solenoid valve switch, and the repeatability can reach ± 2%. Pneumatic torque wrenches are widely used in aerospace, mining, petrochemical, railway, construction, heavy vehicle assembly and maintenance, heavy equipment loading and unloading and many other fields, especially in product production and assembly lines, especially where large torque is required.
No matter what kind of pneumatic tools are used, certain safety regulations and instructions must be followed. The above is the introduction of the principle and use method of pneumatic tools. In the actual use process, we should not only use them correctly according to the above methods, but also pay attention to regular inspection and maintenance. Remember not to damage the parts in the pneumatic wrench at will.