The membrane coupling of a wind turbine generator system is generally composed of a shrink fit, an elastic membrane, an intermediate cylinder, and a torque limiter
Expansion sleeve: connecting the gearbox output shaft and the generator input shaft;
Brake disc: In conjunction with the high-speed shaft brake, its primary function is to brake the impeller;
Elastic diaphragm: Compensates for minor offsets, including angular, axial, and radial displacements, during the operation of the unit;
Intermediate cylinder: It transmits torque and achieves electrical insulation between the gearbox and the generator;
Torque limiter: It can offset excessive load on the unit through friction slippage, thus achieving overload protection.
