The importance of cross shaft universal coupling in work

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The importance of cross shaft universal coupling in work

  CouplingIt is an important component that connects the prime mover and the working machine. Its damage will cause the machine to stop and even spread to the entire operation line. Therefore, its reliability is very high.However, the conditions of the cross-shaft universal joint often have certain limitations. For example, in the transmission of a rolling mill, the diameter of the connected roll is limited, so the rotating diameter of the coupling is also affected accordingly. Limitation, the actual torque in the rolling process is often close to the fatigue torque of the coupling, and it will occur even if it is slightly improper. This kind of overload phenomenon will greatly reduce the fatigue life and cause premature failure or damage .

  In addition, the cross-shaft universal joint has higher requirements for the spatial geometric position of the universal joint. If it is improper, additional torque will appear, which will also reduce its life and affect its transmission efficiency.For large couplings, due to inadequate maintenance technology and improper adjustment of the balance system, additional loads equivalent to the torque level or greater will be brought, and some even break the cross shaft.Therefore, for such a core equipment, thorough technical control is required to ensure its longevity.

  The cross-shaft universal coupling has the advantages of large transmission inclination, high efficiency, smooth transmission, low noise, small gap impact, and large transmission torque.Especially under the correct technical control conditions can also obtain a long service life, so it has been more and more adopted by various machinery.For example, the current adoption rate of domestic rolling mills has reached about 70, the large-swing diameter is 1200mm, and the transmission torque is 3200kN.m.