DIAPHRAGM COUPLING PLAYS AN OVERLOAD PROTECTION ROLE

When the size and weight of a diaphragm coupling increase, the load on the two shafts connected by the diaphragm elastic coupling and its supports also increases.If the relative displacement of the two axes remains unchanged, increasing the size of the disc couplings will cause an increase in the additional dynamic load and affect the service life.There are two ways for a disc elastic coupling to compensate for the relative displacement of the two axes. With the help of the relative movable elements in the elastic disc couplings, the two halves of the diaphragm coupling move relative to each other.

The diaphragm elastic coupling can avoid friction, so there is no wear, and it does not require lubrication and regular maintenance. However, the disc coupling has poor ability to compensate for the relative displacement of the two axes;Elastic elements can produce significant elastic deformation when loaded,on the one hand, it plays the role of compensating the relative displacement of the two connected axes. At the same time, it can rely on the storage of elastic deformation ability to alleviate the impact, and can be achieved by changing the stiffness of the diaphragm coupling.

The diaphragm group in the diaphragm elastic coupling is used as an elastic element like rubber and nylon. According to its properties, it can be made into a compressed elastic element. It is used for applications that do not require high buffering and vibration absorption, but require a large radial or axial displacement situations.Elastic disc couplings increase wear resistance and can also reduce coupling size and weight.When the transmitted torque exceeds the limit value, the connecting parts will be broken, separated or slipped, interrupting the transmission or limiting the transmission of torque, protecting important parts of the machine from damage.Disc elastic couplings can be used as a safety device to prevent the connected parts from bearing excessive loads and provide overload protection.