The gap between the two halves of the diaphragm coupling is too wide, resulting in greater axial force on the diaphragm, which will wear the twisted holes or twisted bolts and cause abnormal noise; the second is the diaphragm. Excessive axial offset or too large deflection angle of the two coupling halves of the coupling will also cause vibration and abnormal noise during equipment operation; the difference in speed between the active end and the passive end will also cause the equipment during operation Vibration and abnormal noise; the motor's speed code plate is faulty, causing the motor's speed to be fast and slow, and the diaphragm coupling is abnormally sound.The way to solve the abnormal noise of the coupling is to ensure the accuracy of the size when producing the coupling, reduce the error to the smallest, and strive for perfection in the production process to ensure the production quality of salt products.Be sure to ensure during useThe frequency of overhaul of the coupling, timely replacement of lubricating oil, to avoid large friction when the coupling runs too long, thereby increasing the operating load of the machine itself.Only by discovering and solving problems in time can the coupling create the greatest value in the course of its use!