Influencing Factors of Dynamic Balance of Shafting with Diaphragm Couplings

2025-07-18


                                   

                                                                                                                                                               

Mark the alignment positions on the coupling. During reassembly, align the two couplings with the marked positions and connect them. This can minimize the impact of the diaphragm coupling's engagement and disengagement on the dynamic balance of the shaft system. Before removing the pin, mark the corresponding positions. During reinstallation, reassemble them in the same order. When removing the screws, washers, spacer rings, etc., as loose parts, they should be combined and stored in a set. This not only prevents the loss or disorder of the loose parts but also avoids causing unexpected dynamic imbalance during reinstallation.

Both ends should be flat without any protrusions. Use a file to smooth the ends. The inner hole should have an appropriate gap with the diaphragm, and it should be able to be easily inserted without any jamming. The width dimension should comply with the requirements of the drawing. Any significant deviation in the width dimension should be replaced. The impact load of the diaphragm coupling is not high, and it is suitable for small and medium power shaft systems with low vibration reduction requirements. It can reduce auxiliary working hours and increase production rate, and is applicable to situations where the alignment of the shafts is difficult.

 If the center deviation exceeds the compensation range, the diaphragm coupling will be subjected to peak torque, the diaphragm assembly will be unstable under pressure, and the tensile force it receives will double. The diaphragm coupling has a mass ratio. The maintenance of the diaphragm coupling should start from installation, and it is particularly suitable for connecting high-power power devices. When there is angular displacement or axial displacement between the power machine and the working machine, the corresponding diaphragm assembly of the diaphragm coupling connecting the power machine and the working machine will generate additional stress.

During the use of the diaphragm coupling, it is necessary to maintain the inclined wedge-shaped gap surfaces and add lubricating oil. The two surfaces have sufficient relative motion speed, the fluid has sufficient viscosity and there is also sufficient oil supply. During the maintenance process, the most important thing is to master the basic scope of fluid dynamic pressure lubrication, which is also the theoretical basis for the design of sliding bearings. If the installation accuracy meets the requirements, the lifespan of the diaphragm coupling will be very long.

 

                                   

                                                                                                                                                               

Mark the alignment positions on the coupling. During reassembly, align the two couplings with the marked positions and connect them. This can minimize the impact of the diaphragm coupling's engagement and disengagement on the dynamic balance of the shaft system. Before removing the pin, mark the corresponding positions. During reinstallation, reassemble them in the same order. When removing the screws, washers, spacer rings, etc., as loose parts, they should be combined and stored in a set. This not only prevents the loss or disorder of the loose parts but also avoids causing unexpected dynamic imbalance during reinstallation.

Both ends should be flat without any protrusions. Use a file to smooth the ends. The inner hole should have an appropriate gap with the diaphragm, and it should be able to be easily inserted without any jamming. The width dimension should comply with the requirements of the drawing. Any significant deviation in the width dimension should be replaced. The impact load of the diaphragm coupling is not high, and it is suitable for small and medium power shaft systems with low vibration reduction requirements. It can reduce auxiliary working hours and increase production rate, and is applicable to situations where the alignment of the shafts is difficult.

 If the center deviation exceeds the compensation range, the diaphragm coupling will be subjected to peak torque, the diaphragm assembly will be unstable under pressure, and the tensile force it receives will double. The diaphragm coupling has a mass ratio. The maintenance of the diaphragm coupling should start from installation, and it is particularly suitable for connecting high-power power devices. When there is angular displacement or axial displacement between the power machine and the working machine, the corresponding diaphragm assembly of the diaphragm coupling connecting the power machine and the working machine will generate additional stress.

During the use of the diaphragm coupling, it is necessary to maintain the inclined wedge-shaped gap surfaces and add lubricating oil. The two surfaces have sufficient relative motion speed, the fluid has sufficient viscosity and there is also sufficient oil supply. During the maintenance process, the most important thing is to master the basic scope of fluid dynamic pressure lubrication, which is also the theoretical basis for the design of sliding bearings. If the installation accuracy meets the requirements, the lifespan of the diaphragm coupling will be very long.

 


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