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The Structural Characteristics Of The Coupling
Sep 22, 2017

In order to improve the damping capacity of the coupling, it is necessary to increase its damping coefficient, mainly to increase the interference torque frequency and the inherent frequency of the frequency ratio approach, when increased, the coupling of the power amplification factor becomes smaller, so as to reduce Vibration effect. In the connection plate at both ends of the increase, but also increased the vibration device --- buffer ring (material for the nitrile rubber), the use of buffer ring on the vibration system damping, reducing the natural frequency of the coupling, while the buffer ring also To the role of isolation vibration, that is: from the motor or compressor shaft vibration, through the buffer ring, most of the vibration energy is reduced, converted into the buffer ring deformation potential energy, thus to overcome the resonance, so that vibration to a minimum. The connection plate ends are mated with the two half shafts to ensure the coaxiality of the connecting plate and the half shaft.

The diaphragm structure is designed to be floral, enhancing the torsional rigidity of the diaphragm, and increasing the elastic deformation of the diaphragm, so that the coupling vibration is greater.

Manufacturing accuracy of new diaphragm coupling

Coupling is connected to the motor and the compressor of the middle parts, and its motor and rotor shaft diameter with the accuracy of the unit will have a certain impact on the vibration. Therefore, the compressor coupling, the motor coupling of the processing, put forward higher requirements, the coupling of the hole, the outer circle, the end surface must be grinding, to ensure surface roughness at the same time, also meet The coaxiality and verticality of the requirements, which not only improve the motor coupling and the motor shaft diameter, compressor coupling and rotor shaft diameter with the accuracy, but also for the future installation is to bring convenience. Coupling is a high-speed rotating parts, in the course of work, the eccentricity of the centrifugal force generated, can produce a large unbalanced torque, causing vibration enhancement, noise increases. In order to eliminate the unbalanced moment of the coupling, the vibration origin is controlled, the system transmission is smooth, the dynamic balance level of the coupling is increased to the stage, and after the dynamic balance is finished, the relative position of each coupling, Corresponding nuts, holes are marked, for the future installation and commissioning provides a benchmark.