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Clamping spline plum elastic coupling

Clamping spline plum elastic coupling

Plum-blossom elastic coupling is composed of two semi-coupling and elastic elements with the same shape of convex claws. Plum-blossom elastic coupling elements are placed between the convex claws of the two semi-coupling to realize the connection of the two semi-plum-blossom coupling. The utility model has the advantages of compensating the relative offset of two axes, reducing vibration, cushioning, small radial dimension, simple structure, no lubrication, high bearing capacity and convenient maintenance, etc.
JMI diaphragm couplingMLZ Single Flange Plum Blossom Elastic CouplingFlexible elastic coupling

  Plum-blossom elastic coupling is composed of two semi-coupling and elastic elements with the same shape of convex claws. Plum-blossom elastic coupling elements are placed between the convex claws of the two semi-coupling to realize the connection of the two semi-plum-blossom coupling. The utility model has the advantages of compensating the relative offset of two axes, vibration absorption, cushioning, small radial dimension, simple structure, no lubrication, high bearing capacity and convenient maintenance, etc. When replacing the elastic elements of the basic plum-blossom coupling, the two halves need to move along the axis, and the double flanges can replace the elastic elements without moving the coupling axially. It is suitable for connecting two coaxial lines, frequently starting, positive and negative transformation, medium and low speed, medium and small power transmission shafting, and working parts requiring high reliability. The basic plum-shaped elastic coupling is not suitable for parts with heavy load and limited axial dimension and difficult alignment of the two axes after replacing elastic elements. After the revision of the standard, there are two kinds of materials for Plum Blossom Elastic Couplings: polyurethane and cast nylon. According to different working conditions, different materials, such as fans, pumps, light industry, textiles, can be selected when the work is stable and the load changes little. The prices of the two materials are closely related. Strength Calculation of Plum Blossom Elastic Coupling

  The strength calculation of plum-blossom coupling is mainly to check the pressure of the bearing surface when the elastic element is loaded.

  P=16TC_Zb(D1-D2)=[P]

  TC expression in formula: Coupling calculation torque N. mm;

  Z means: Plum petal number of Plum flower elastic coupling element;

  B: The axial width of plum-blossom coupling element is mm.

  The permissible pressure of elastic element material is 2N/mm2. When using rubber material, [P]=1.8-2N/mm2; when the load is stable and the speed is not high, the allowable pressure can be increased by more than one fold; when using polyurethane material, [P]=2.5-3 N/mm2; when using cast nylon material, [P]=3.5-4 N/mm2.

  Stiffness Calculation of Plum Blossom Elastic Coupling

  Approximate calculation of compressive stiffness C1 and shear stiffness C2

  C1 = AEa_h C2 = AGa_h

  In the formula:

  A: Plum Blossom Elastic Coupling

  Ea said: material elastic modulus of coupling elastic element, N/mm2;

  Ga expression: material shear modulus of coupling elastic element, N/mm2;

  The thickness of the elastic parts of the plum-blossom coupling is mm.