An electromagnetic coupling is a device that disconnects or connects two shafts, or a shaft with a part, it is necessary to bring electricity to it. Electromagnetic couplings are used quite widely, but in this article we will consider what they are and how they work.
The principle of work and a variety
Electromagnetic couplings in their structure are:
Toothed;
Multi -disc;
Single -disc.
Rotation of gear couplings occurs due to gear rings that function using an electromagnetic field. Thanks to their properties, gear couplings work properly in dry, and in wet space. In turn, gear couplings are classified according to the following types:
Clushes with a permanent field (two wires emerge from a magnetic coil. When the electromagnetic field begins to work, the toothed crowns are connected, setting the compression spring in motion, which is placed between them. The shafts are disconnected if the food is stopped. For longer operation, it is better to connect the ventilation that will cool the mechanism);
Couplings with current rings (after a positive and negative wire is correctly fixed, a magnetic pulse is supplied through the coil, so that the crowns with the teeth are squeezed out);
Disconnecting couplings with a fixed coil (when it is disconnected, the power is carried out according to two guides, and due to the spring there is a compression. If you adhere to certain voltage supply methods, energy consumption can be reduced);
Couplings with a current ring and spring;
Rosted brakes (the mechanism is written through two wires).
In turn, multi -disabilities also differ:
With a background ring (where rotation occurs when the voltage is supplied to the reel. There are two wires, one of which is connected to the design itself, and the second to the brush for transmission of current. The clamping ring is attracted when the courses of the coupling are tightened);
With a fixed case (when the coil starts to work, the disk bag is compressed).
Single -disk couplings function much easier. The work is carried out mainly in dry conditions, and the principle of friction is mainly used. As soon as the power is on, an anchor is attracted to the rotor, which is in contact, forms friction, which ensures rotation. As soon as the food is stopped, the rotation does not occur.
