Introduction of air rotary joint
Pneumatic Rotary joint is a transitional connection sealing device that transports gas medium from static system to dynamic rotary system. The application field of rotary joint covers almost all processing and manufacturing industries. Pneumatic rotary joint is mainly used in metallurgical machinery, road rolling machinery, papermaking machinery and construction machinery And other industries.
The seal is selected according to the design structure of the pneumatic rotary joint. Any error in the link may cause leakage. It is preferred to start with the raw materials. The content of each element of the component must meet the standard. From design to production, each piece must be checked. The precision is 0.01mm, and the subsequent assembly maintains a good tightness. The rotary joint of the hydraulic pump air pipe is driven by the motor to rotate the joint as a whole. The temperature sensor, speed sensor and pressure sensor are also used to record the displayed information. Data, each finished product tested ten sets of data, each set of data speed measurement time is two hours, so the test time of a single rotary joint is nearly one day, the average of these ten sets of data to obtain technical parameters; and gas The test time and step of the liquid rotary joint are more complicated. At the same time, the acidic and alkaline liquids will be tested. At the same time, the rotary joint is tested. Each joint outlet is affixed with a ph test strip. Ten sets of data are tested accordingly. If the rotary joint leaks ph The test strips will change.
To test the tightness of pneumatic rotary joints, start with the seals entering the factory, measure the overall balance of the seals with a level tester, then measure the circumference and gas wear resistance, and test the grinding time and wear resistance with a rotary grinding tester. The high temperature equipment is used to test whether it is resistant to high temperature. The acid and alkali pH value is tested by acid and alkali invasion. Only the seals that pass the test can be used. The bearings of pneumatic rotary joints are the same. The photoelectric sensor is used in conjunction with a digital display to analyze the inside of the bearing Whether it is in place, use a high-speed machine with a test sensor to test the bearing rotation speed, test the temperature resistance with a high-temperature instrument, and test the fit of the bearing on the rotary joint.