Plum coupling can be used for small and medium power horizontal and vertical shafts

Plum blossom elastomers are generally composed of engineering plastics or rubber.The life of the coupling is also the life of the elasticity in the machine.Since elasticity is under compression, it is obviously under tension.The life of the general elastomer is 10 years.Because elasticity has the function of buffering and damping vibration, it is used more in situations with strong vibration.The performance temperature of the elastomer determines the operating temperature of the coupling, which is generally -35 to +80 degrees.The material of the plum-shaped elastic element is mainly 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 Difficult to align the two axes

The quincunx uses a quincunx-shaped elastic element to be placed between the two halves of the coupling claws to realize the elastic connection of the existing half couplings. The structure is simple, does not require maintenance, is convenient to repair, has cushioning and damping performance, is reliable, and has good processing accuracy The requirements are not high, the application range is wide, and 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 coupling is processed by machining methods such as turning, milling, and broaching, and then undergoes overall heat treatment.In order to ensure sufficient mechanical strength of two types of plum blossoms, there is also a claw plate on the market called castings, which can be produced in large quantities and saves many processing losses.So the price is much lower than machining. It's just that the performance of the casting is not very good.It is better not to use it in some important occasions.

The claws of castings are prone to tooth punching (claws falling off) at high speed or high load.Features are as follows:

(1)Compact, no backlash, providing three different hardness elastomers; 　

(2) Vibration can be absorbed, and radial and angular deviation can be compensated; 　　

(3) Simple structure, convenient maintenance and inspection; 　　

(4) Maintenance-free, oil-resistant and electrical insulation, working temperature 20℃-60℃; 　　

(5) Plum blossom elastomer has four petals, six petals, eight petals and ten petals; 　　

(6) The fixing methods include top wire, clamping and keyway fixing.