Disc Membrane Couplings

Disc membrane coupling is a high-performance flexible coupling device that achieves torque transmission and displacement compensation through the elastic deformation of metal diaphragms.

The core structure includes:

1. Diaphragm component: composed of multiple layers of stainless steel thin plates stacked together, forming a specific corrugated structure through precision stamping or laser cutting, and undertaking the main functions of force transmission and deformation compensation.
   

2. Flange connection system: Adopting high-strength bolt pre tightening connection to ensure the stability of torque transmission, some models are equipped with conical interference fit to improve assembly accuracy.
   

3. Auxiliary support mechanism: Integrated spherical support and elastic pre tensioning device, can provide radial stiffness of ≥ 800N/mm, while achieving self centering function.

Working principle and performance advantages

1. Displacement compensation capability:
   Axial compensation: 0.5-3mm (through elastic deformation of the diaphragm)
   Radial compensation: ± 0.2mm
   Angular compensation: ± 0.5 °
   

2. Dynamic characteristics:
   Vibration suppression: reduce the unbalanced response of the rotor system by 15% -20%
   Critical speed regulation: Increases the first-order critical speed of the system by 12.4% -16.77%
   

3. Environmental adaptability:
   Temperature range: -80 ℃ to+300 ℃
   Corrosion resistance: Suitable for acidic and alkaline media environments, no lubrication required

The disc membrane coupling with its non-contact transmission and maintenance free characteristics, is gradually replacing traditional gear couplings and becoming the preferred solution for modern industrial transmission. Proper selection and standardized installation can extend its lifespan to over 10 years, significantly reducing the total lifecycle cost.