The role and characteristics of the diaphragm in the structure of the diaphragm coupling

Characteristics of the separated connecting rod shape: Each diaphragm is composed of a separate thin rod to form 

a polygon. The shape of the rod is simple and easy to manufacture, but it requires a distance between holes. Its working 

performance is basically the same as that of a continuous polygonal ring, but its strength and speed are lower. It is 

suitable for occasions where the size of diaphragm coupling is limited.

Characteristics of the spoke shape: Each coupling is composed of several pieces. The screw holes on its outer edge and 

inner edge are connected to the master and slave half couplings respectively. Torsion occurs during operation. The formed 

holes on the diaphragm are to increase the coupling. Elasticity. Because elasticity requires that the difference between the 

inner and outer diameters should not be too small, it is generally suitable to transmit small and medium power.

Characteristics of the molded diaphragm: Each coupling is composed of a single diaphragm. The thickness of the diaphragm 

decreases hyperbolically from the inner diameter to the outside to maintain equal strength conditions. It has high material 

utilization and good integrity, and is especially suitable for High-speed transmission, but the manufacturing precision of the 

diaphragm is high.

Characteristics of corrugated diaphragm: The diaphragm is corrugated in axial cross-section, has high elasticity and good 

compensation performance. The thickness of the diaphragm can be equal or unequal. The single-piece hyperbolic type has 

better performance and is currently used in many applications.