What Is a Compression Coupling?

Flanged couplings are rigid couplings. Two flanged half couplings are connected to the two shafts with ordinary flat keys, and then the two half couplings are bolted together to transfer motion. And torque. This type of coupling has two main structural forms: bolts are used to achieve centering of two shafts by hinge holes and torque is transmitted by compression and shearing of bolt rods; rely on a half coupling The shoulder is aligned with the groove on the other half coupling. The bolts connecting the two half-couplings can be ordinary bolts of class A and B. The torque is transmitted by the frictional moment of the joint surface of the two half-couplings.

Flange coupling

This type of coupling has two main structural forms: bolts are used to achieve centering of two shafts by hinge holes and torque is transmitted by compression and shearing of bolt rods; rely on a half coupling The shoulder is aligned with the groove on the other half coupling. The bolts connecting the two half-couplings can be ordinary bolts of class A and B. The torque is transmitted by the frictional moment of the joint surface of the two half-couplings.

The material of the flange coupling can be gray cast iron or carbon steel, and cast steel or forged steel should be used at heavy load or when the peripheral speed is greater than 30 m / s.

Depending on the magnitude of the torque transmitted, all bolts on the flange can be bolts for hinge holes, or half of the bolts for hinge holes, and the other half

YL, YLD flange couplings, radial key flange couplings ^[1]

Rigid couplings are divided into flange couplings, radial key flange couplings, sleeve couplings, shell couplings and parallel shaft couplings, flange couplings are centered on two shafts The requirements are very high. When there is relative displacement between the two axes, it will cause additional loads in the machine and worsen the working condition. This is its main disadvantage. Advantages: But because of the simple structure, low cost, and large torque transmission, it is often used when the speed is low, no impact, the shaft is rigid, and the centering is good.

Flange couplings (also known as flange couplings) are bolted to two flange (flange) disc half couplings. The two half couplings are respectively connected to the two shafts with keys to achieve two shafts. Coupling, transmitting torque and motion. The flange coupling is simple in structure, convenient in manufacturing, low in cost, reliable in work, simple in assembly and disassembly, and maintenance, and has a large transmission torque, which can ensure high alignment accuracy of the two shafts. It is generally used for stable load. High-speed or high-accuracy transmission requires shafting transmission. Flange couplings do not have radial, axial and angular compensation ^[1] .