Basic installation and maintenance knowledge of diaphragm coupling

　　Diaphragm couplingThe overall dimensions, that is, the large radial and axial dimensions, are within the allowable installation space of the machine and equipment.Choose a diaphragm coupling that is convenient for assembly and disassembly, does not require maintenance, has a long maintenance period or is convenient for maintenance, does not need to move the two shafts when changing wearing parts, and is easy to adjust the middle.

　　It is difficult to adjust the alignment of the two shafts for large machinery and equipment, so you should choose a diaphragm coupling that is durable and easy to change wearing parts.Flexible couplings with metal elastic elements generally have a longer service life than flexible couplings with non-metal elastic elements.The need to seal and lubricate and the use of undurable couplings will inevitably increase the maintenance workload.For occasions with long-term continuous operation and high economic benefits, such as the high-speed end of the rolling mill transmission system of my country's metallurgical enterprises, gear couplings are currently commonly used. Although the gear couplings theoretically transmit large torques, they are Durable work can only be done under the conditions of good lubrication and sealing, and the sealing condition needs to be checked frequently, lubricating oil or grease is injected, the maintenance workload is large, the auxiliary working hours are increased, the effective working time is reduced, and the production efficiency is affected.The industry is developed, and diaphragm couplings with long service life, no lubrication and maintenance have been widely used to replace drum-shaped gear couplings, which not only improve economic efficiency, but also purify the working environment.In the transmission system of the rolling mill, the flexible movable pin coupling and the sector-shaped elastic coupling developed by our country are used, which not only has the advantages of the diaphragm coupling, but also has a good cushioning effect and a low price.