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DL polygonal rubber couplingDL Polygonal Rubber Coupling is made of rubber material, made into a 6-angle (or octagonal) shape with a circular cross-section...Plum elastic couplingThere are mainly two types, one is the traditional straight claw type, and the other is the curved surface(内凹)Claw-type zero-backlash coupling.The traditional straight-jaw plum blossom coupling is not suitable for high-precision servo transmission 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 overcome the influence of centripetal force on it during high-speed operation.The zero-backlash claw coupling consists of two metal sleeves(Usually made of aluminum alloy, stainless steel can also be provided)It is combined with a plum elastic spacer.The plum blossom elastic spacer has multiple leaf branches. Like a slider coupling, it also squeezes the plum blossom elastic spacer and the sleeves on both sides to match it, thus achieving its zero clearance performance.
The plum blossom elastic coupling has the ability to compensate, and is suitable for working conditions with offsets between the two axes, and has cushioning and shock absorption properties.The coupling does not need to be lubricated and can work in dusty and humid conditions. It has a simple structure and is convenient for maintenance. However, it is necessary to move the half coupling and the main shaft when changing the elastic element.Operating temperature:-20%~+70℃, the nominal torque transmitted is6.3~8000N.m.
Plum blossom flexible coupling characteristics:
(一)Compact, no backlash, providing three different hardness elastomers;
(two)The rubber material isNBRMaterial, can absorb vibration, compensate radial and angular deviation;
(three)Simple structure, easy maintenance, easy inspection;
(four)Maintenance-free, oil-resistant and electrical insulation, working temperature20℃-70%℃;
(五)Plum blossom elastomer has four petals, six petals, eight petals and ten petals;
(六)The fixing methods include top wire, clamping, and keyway fixing.
Precautions for the use of plum elastic coupling:
(XNUMX) If the coupling is used on a high-torque machine, the selected aperture must be smaller than the aperture indicated in the above table5 mmthe above. (Because at the moment when the driving shaft starts, a large impact load will be generated on the coupling, and the actual instantaneous torque is much greater than the rated torque of the coupling.)
(XNUMX) During the use of the plum blossom coupling, when the actual speed is close to the high speed limit, please check the dynamic balance in time.