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The use characteristics of flange coupling
2022-10-27

When it comes to flange couplings, most people have some understanding of them. This coupling has simple structure, low cost, easy maintenance, and can transmit large torque. It is widely used, but requires the flange end face to be The axis has a high verticality, and the centering accuracy of the two-axis axis is also required to be high. In addition, this coupling cannot absorb vibration and shock, and cannot solve the adverse consequences caused by the installation error of the two shafts. Therefore, it is mainly used for two-axis links with relatively stable loads, such as improving the manufacturing and assembly accuracy, and can also be used for high-speed overloaded.

Rigid couplings are more commonly used flange couplings, which are formed by bolting two half couplings with flanges. The flange shoulders and grooves of the two half couplings are centered. The frictional force between the contact surfaces of the two halves of the coupling transmits torque, and the two halves of the coupling are connected by ordinary bolts. The hinged hole is used for centering, and the torque is directly transmitted by the extrusion between the bolt and the wall of the bolt hole. The flange coupling is easy to use, can transmit a large torque, and requires high neutrality during installation. It is mainly used in occasions with good rigidity, low speed and stable load.

When we produce flange couplings, its material can be made of gray cast iron or carbon steel, and cast steel or forged steel should be used when the load is heavy or when the peripheral speed is greater than 30 meters per second. The flange coupling has high requirements on the neutrality of the two shafts. When there is relative displacement between the two shafts, additional loads will be caused in the parts and the working conditions will be deteriorated, which is its main disadvantage. Advantages: However, due to the simple structure, low cost and large torque transmission, it is often used when the speed is low, there is no impact, the rigidity of the shaft is large, and the alignment is good.

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