Plum elastic coupling

The zero-clearance claw coupling is composed of two metal sleeves (usually made of aluminum alloy, stainless steel can also be provided) and a plum blossom elastic spacer.
Plum blossom couplings There are two main types of plum blossom couplings, one is the traditional straight claw type, and the other is the curved (inward) claw type zero-backlash coupling.Traditional straight claw typePlum couplingNot suitable for use in high-precision servo drive applications.The zero-backlash claw type plum blossom coupling evolved on the basis of the straight claw type, but the difference is that its design can be adapted to the application of the servo system, and is often used to connect servo motors, stepping motors and ball screws.The curved surface is to reduce the deformation of the elastic plum spacer and limit the influence of centripetal force on it during high-speed operation.The zero-clearance claw coupling is composed of two metal sleeves (usually made of aluminum alloy, stainless steel can also be provided) and a plum blossom elastic spacer.The plum elastic spacer has multiple leaf branches, like a sliderCouplingSimilarly, it also squeezes to make the plum elastic spacer fit the sleeves on both sides, thereby ensuring its zero-clearance performance.Different from the slider coupling, the plum blossom coupling is driven by squeezing while the slider coupling is driven by shear.When using a zero-clearance claw coupling, the user must be careful not to exceed the maximum bearing capacity of the elastic element given by the manufacturer (under the premise of ensuring zero clearance), otherwise the plum elastic spacer will be squashed and deformed Loss of elasticity, preload disappears, resulting in loss of zero-clearance performance, and users may only find out after serious problems occur