The role of the rubber flap of the plum coupling

The plum blossom coupling can't be called a coupling without the rubber flap, which shows its importance.

The plum blossom coupling uses a drum-shaped plum blossom-shaped elastic body to be placed between the two half-coupling claws to realize the elastic connection of the two half-couplings.When the coupling is working, the drum-shaped elastic petals embedded between the driving and driven pawls in the direction of rotation can fully contact the paws of the half-coupling, which compensates for the deviation of the elastomer petal pitch and the convexity of the half-coupling. The claw distance error of the claws makes the elastic body and the coupling uniformly stressed, which improves the load-bearing capacity of the coupling. At the same time, since the cross section of the elastic flap is drum-shaped, the angular displacement compensation of the coupled shaft is greatly improved.

The quincunx-shaped elastic coupling uses quincunx-shaped elastic elements to be placed between the two coupling halves to realize the elastic connection of the half-coupling. The structure is simple, does not require maintenance, is convenient to repair, has cushioning and vibration reduction performance, and is reliable. , It does not require high machining accuracy and has a wide range of applications. It can be used in various medium and small power horizontal and vertical transmission shaft systems.Operating temperature -35 degrees to 80 degrees.The plum-shaped elastic element is mainly made of polyester polyurethane rubber, which not only has high elasticity and oil resistance, but also has the advantages of impact resistance and oil resistance.In some occasions, this elastic element can also be made of MC nylon 6 or nitrile rubber.It has the characteristics of compensating for the relative deviation of the two shafts, damping, buffering, small radial size, high carrying capacity, and convenient maintenance. However, the two halves of the coupling must be moved in the axial direction when changing the elastic element.It is suitable for connecting two coaxial lines, frequent starting, forward and reverse changes, medium and low speed, medium and small power transmission shaft systems, and working parts that require high working reliability. It is not suitable for heavy loads and restricted axial dimensions, after changing elastic components The two axes are difficult to align.