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Forged Steel Couplings Has Two Main Structural Forms
May 31, 2017

Forged steel couplings, as the name suggests, is actually a twisted rigid coupling, even when the load is not any rotation gap, even if there is a deviation to produce a load, the rigid coupling or rigid transmission torque.

Forged steel couplings is composed of rigid transmission force, the joints can not be relative movement between, so do not have the ability to compensate for the relative deviation of the two axes, only for the connection of two axes in the installation can be strictly aligned, work When the two shafts do not produce the relative deviation of the occasion, the flange coupling inelastic components, do not have the vibration and cushioning function, generally only suitable for the load is smooth and no vibration conditions of the working conditions.

Forged steel couplings has two main structural forms: ① by hinge hole with bolts to achieve the two-axis and the bolt by the bolt to withstand the extrusion and shear to transmit torque; ② by a semi-coupling The shoulder is aligned with the groove on the other half coupling. The bolts connecting the two half couplings can be of the same type of A and B, and the torque is transmitted by the friction torque of the coupling surfaces of the two half couplings. The material of the rigid coupling can be made of cast iron or forged steel with heavy cast iron or carbon steel, heavy load or peripheral speed greater than 30 m / s.

Disadvantages: flange forged steel couplings on the two-axis to the high requirements, when the relative displacement of the two shaft exists, it will cause additional load in the machine, so that the deterioration of the work, which is its main drawback The

Advantages: but because the structure is simple, low cost, can pass a larger torque, so when the speed is low, no impact, the rigidity of the shaft, the neutral is often used. Flange coupling (also known as flange coupling) is the use of bolts to connect two flange (flange) disc half coupling, two semi-couplings were used to connect with the two shafts to achieve two-axis Connect, transmit torque and movement. The flange coupling is simple in structure, easy to manufacture, low in cost, reliable in operation, easy assembly and disassembly, and easy maintenance. The transmission torque is large, which can ensure the accuracy of the two axes. High speed or transmission accuracy requires a higher shaft drive. Flange coupling does not have radial, axial and angular compensation performance, if you can not guarantee the use of two-axis alignment accuracy, will reduce the service life of the coupling, transmission accuracy and transmission efficiency, and cause vibration And noise. Forged steel couplings flange on the flange according to the size of the transmission torque can be used for all the hinge hole with bolts, or half with hinge hole with bolts, the other half with ordinary bolts.

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