What is magnetic coupling?
2022-11-24

What is magnetic coupling

Coupling is an important part of mechanical transmission, which transmits torque through the mutual connection of driving shaft and driven shaft.

The traditional coupling is contact type, and its structure is relatively complex. Wear will occur in daily operation. If overloading occurs, it will cause serious wear to other mechanical parts, which is very unfavorable to the stability of mechanical operating equipment. If the driving shaft and driven shaft of the coupling need to work in two different media that are isolated from each other, sealing elements must be used for dynamic sealing. In this way, either the rotating resistance is increased to ensure reliable sealing, or the sealing is not tight enough to cause leakage. In addition, with the wear and aging of sealing elements, leakage will be aggravated, especially in the system where harmful gases (harmful liquids) exist. Once leakage occurs, it will pollute the environment and endanger life.

The magnetic coupling is a non-contact coupling, which is generally composed of two magnets, and an isolation shield is set in the middle to separate the two magnets. The inner magnet is connected with the transmission parts, and the outer magnet is effectively connected with the power parts. The power is transmitted through the magnetic field NSji coupling interaction. The magnetic coupling has the function of buffering and vibration absorption. In addition, it uses a new magnetic coupling principle to realize the transmission of force and torque between the driving shaft and driven shaft without direct contact, and can turn the dynamic seal into a static seal to achieve zero leakage. Therefore, it is widely used in situations with special requirements for leakage.


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