Technical advantages of flexible diaphragm coupling

Published: 2020-01-13

1. Dry typeCoupling, Without lubrication

Flexible diaphragmCouplingRelying on the metal diaphragm to transmit torque and absorb deformation, there is no relative movement between the various parts. "Gear coupling is a rigid movable coupling, which relies on the relative slip between the tooth surfaces to compensate for the misalignment of the two shafts. So gearCouplingTo be lubricated, and the lubrication condition is the key to the gear coupling.Especially in high-speed operation, it is prominent, such as centrifugal force, oil separation, leakage, selection of lubricating oil, often because the lubrication design is connected to the bearing lubrication machine, rather than the load-carrying capacity of suitable gear lubricating oil.Therefore, the lubrication problem of gear couplings running at high speed is particularly prominent.On the other hand, the wear caused by the relative slippage of the tooth surface will cause a series of problems, such as mud and imbalance.Therefore, although gear couplings were once the choice for high-speed and high-power applications, with the diaphragmCouplingThe appearance and development of the gear coupling gradually disappeared. "

2. All metal structure, large torsion ability and long service life

DiaphragmCouplingThe metal diaphragm is used as the elastic element, which has a large transfer load capacity. The whole product contains no non-metal parts, no aging problems, long service life, and is suitable for harsh use environments.This is true for the coupling with non-metallic elastic elements.

3. The compensation ability is incorrect, the installation is convenient, and the search is correct.

This compensates for the misalignment of the two axes.gearCouplingLimited by the relative sliding speed of the tooth surface and the lubrication conditions.The relative sliding speed of the tooth surface should not be greater than 0.12m/s angular compensation capability.Therefore, non-metallic flexibilityCouplingThe installation and alignment requirements of the gear coupling are relatively high.

4. The axial rigidity and angular rigidity are low, and the impact on the equipment is small.

DiaphragmCouplingA very thin metal film is used as the elastic element, and its angular and axial stiffness is low, so the additional axial force and additional bending moment are very small, and it will not have an additional impact on the unit.In fact, this idea is wrong.Due to friction and misalignment of the shaft and the bearing, the elastic diaphragm coupling will generate a large additional axial force and additional bending moment.

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