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        A synopsis of the coupling

        author:Hebei anhesheng machinery technology co. LTD

        When choosing coupling should be according to choose their actual situation and requirements, considering the above factors, pick up the most suited to their needs from the existing standard coupling coupling varieties, types and specifications. In general, the existing standard couplings can meet the requirements of different working conditions.

        As a result of the engine driving torque and working machine load torque instability, as well as the transmission parts made error caused by impact and parts caused by the unbalanced centrifugal inertia force dynamic load, the drive line in variable load (periodic load and the cyclical impact load) under dynamic mechanical vibration of the line of this will affect the service life of the mechanical and performance, disturb the normal working conditions, instruments, meters and additional dynamic stress on shafting parts, when the total stress or alternating stress exceed the permitted limits, respectively parts causes damage or fatigue damage. Transmission torque and in the design or selection with coupling, should carry on the analysis and calculation of the torsional vibration, its aim is to strike the shafting natural frequency, in order to determine the critical speed of the engine, so as to calculate the shafting torsional vibration and the additional load and stress the transmission device. Using damping buffer action when necessary, its basic principle is reasonable matching system of mass, stiffness, damping and the size and frequency of the disturbing force, make the transmission device is beyond the scope of the resonance area speed running, or within the speed range is not a strong resonance phenomenon. Another effective method is to use high flexibility in the shafting elastic coupling, hereinafter referred to as elastomer (sexual) coupling, in order to reduce the natural frequency of the axis, and use its damping characteristics reduce the torsional vibration amplitude.


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