LXJ star elastic coupling

Ever-PowerLXJ star elastic couplingConnection without backlash under prestress, used for spindle drive, lifting platform and machine tool, etc.

The elastic element in the LXJ star elastic coupling is engineering plastic. Because the engineering plastic has good elasticity, cushioning, shock absorption, and performance, it can well compensate for various displacements between the two drive shafts. It is widely used in the field of transmission torque 20-35000.NM, working temperature -35-+80 degrees Celsius, and interchangeable with German ROTEX coupling.
The polyurethane elastomer of the star coupling is limited by the convex claw block, which can avoid internal deformation caused by impact and external deformation caused by centrifugal force; the large concave surface of the convex claw makes the surface pressure on the involute tooth very small , Even if the tooth is overloaded, the tooth will not wear or deform.

The standard of LXJ star elastic coupling is JB/T 10466-2004.

Star couplings are sometimes mistaken for plum couplings. Their appearance after installation is almost similar. However, under the same model, the star coupling bears more torsion. Compared with the plum coupling, its inner hole and shape It can be small.

The radial movement of the star-shaped elastic coupling due to the centrifugal force during high-speed operation will accelerate its wear, and a shell is added.In addition to preventing dust and oil, insufficient thinning may cause interference. Excessive thinning will weaken the strength of the tooth, and the backlash will be large.The contact condition of the external teeth avoids the disadvantages of squeezing the edge of the straight tooth and stress concentration under the condition of angular displacement. At the same time, the friction and wear of the tooth surface are reduced, the noise is reduced, and the maintenance cycle is long.The tooth end of the outer gear sleeve of the star-shaped elastic coupling is in the shape of a horn, so it is not suitable for use under high speed and impact load conditions, nor for the connection of vertical shafts.When designing the overall structure of the star-shaped elastic coupling, pay full attention to the lubrication and dust prevention between the tooth surface and the roller, as well as the protective effect.Because if the chain breaks, it may cause a personal accident.The radius of curvature of the drum curve is proportional to the single-sided thinning of the internal teeth, that is, it is related to the meshing gap of the teeth, which makes the assembly and disassembly of the internal and external teeth easy.