Coupling speed approaching the limit is prone to damage

The compensation capability of the coupling device is suitable for working conditions with offset between two axes, and it has buffering and shock absorption performance. When using couplings on high torque machinery, the selected aperture should be at least 5mm smaller than the aperture indicated in the table above, and the actual instantaneous torque should be greater than the rated torque of the coupling. During use, when the actual speed approaches the height limit, check the dynamic balance condition in a timely manner.

For the assembly of large coupling hub and shaft, hydraulic assembly method is usually used. The high-pressure oil pump and specialized tooling feed high-pressure oil between the hub and shaft surface, causing the hub to expand and gradually pressing the shaft and hub together. Before assembly, it is important to clean the mating surface and oil chamber with a clean white cloth and high-pressure oil to prevent impurities or dirt from entering the mating surface and affecting assembly quality.

During the operation, pressurization and propulsion can alternate until they are fully loaded. The inner hole of the shaft and intermediate sleeve is connected by a cylindrical surface, and the oil pressure value shall not cause plastic deformation of the connecting part. The outer conical surface and conical hole of the intermediate sleeve are connected by a conical surface, and this connection method can be repeated multiple times for assembly and disassembly. The intermediate sleeve is replaced as a vulnerable part, and its assembly and disassembly method is the same as the general conical connection assembly and disassembly method.

When using an expansion sleeve to connect the hub and shaft, the joint surface should be cleaned thoroughly to ensure no dirt, corrosion, or damage. At the same time, a thin layer of lubricating oil without molybdenum disulfide additives should be evenly applied to the joint surface of the expansion sleeve and the connecting parts. After moving the hub to the designated position on the shaft, the loosened expansion sleeve should be smoothly installed into the connecting hole. While ensuring that the connecting parts are not skewed, the screws should be tightened by hand.