The positioning wear condition of the drum coupling

When the relative displacement between the positioning wear indicator and the positioning wear mark exceeds the specified value, it indicates that the wear has reached a certain thickness and the coupling should be replaced promptly. When the drum is subjected to both forward and reverse loads during operation, the relative displacement between the positioning wear indicator and the positioning wear mark; for the drum coupling to maintain dynamic balance, the key should be precisely inserted into the keyway and should not be too short or too long.

The semi-flexible coupling is heated in an oil tank or an oven. The heating temperature depends on the interference amount. When there is a relative offset between the two shafts, the elastic element undergoes corresponding elastic deformation, thus playing an automatic compensation role. For bolts that are rusted or have a lot of oil deposits, solvent is often sprayed onto the connection between the bolt and the nut to allow the solvent to penetrate the threads. This makes disassembly easier.

The new bolts are of the same specification as the original ones and are used for the newly replaced bolts of the coupling in high-speed equipment. This ensures that the weight of the new bolts is the same as that of the connecting bolts on the same group of flanges. During assembly, the new bolts are replaced. The coupling mainly consists of two parts with protruding teeth that closely mesh and bear radial compression to transmit torque. The sliding block coupling, on the other hand, transmits through shear force.

It is difficult for us to achieve this by changing the moment of inertia, but the stiffness of the shaft system can be easily changed. The coupling is designed to change the stiffness of the shaft system in order to avoid resonance. The bearing seat undergoes displacement due to long-term vibration. Since vibration generated by large fans is inevitable, this can easily cause slight loosening of the fastening bolts on the base, and the consequence is unbalanced rotation and vibration.