2022-07-16
Plum couplings are well balanced and suitable for high speed applications (up to 30,000 rpm), but cannot handle large deviations, especially axial deviations. Larger eccentricities and declinations create larger bearing loads than other servo couplings. Another issue of concern is the failure of the plum coupling. Once the plum blossom elastic spacer is damaged or fails, the torque transmission will not be interrupted, and the metal claws of the two bushings mesh together to continue to transmit the torque, which is likely to cause problems in the system. Selecting the appropriate plum blossom elastic spacer material according to the actual application is a major advantage of this coupling. It can provide plum blossom spacers of various elastic materials with different hardness and temperature tolerance, allowing customers to choose the appropriate material to meet the actual application. performance standards.
The coupling is one of the most important parts in mechanical transmission. The installation and positioning of the coupling are: positioning screw positioning, tightening screw positioning, keyway positioning, D-shaped hole positioning, and rod tightening sleeve positioning. The following is for everyone. Explain the benefits of positioning these couplings:
1. Positioning of positioning screws: Two 90° screw holes are machined on the outer circle of the coupling, and the positioning screws are used to fix the coupling on the shaft through these two holes. This is a relatively common fixing method. Since the tip of the screw is in contact with the shaft, the shaft may be damaged or difficult to remove.
2. Tighten the screw positioning: make a slit on the coupling. Use the tightening force of the coupling factory screw to deform the slit and lock the shaft tightly. This method is convenient to fix and disassemble, and it will not cause damage to the shaft. It is a very common fixing method.
3. Keyway type positioning: suitable for high torque transmission, in order to prevent axial sliding, it is usually used together with positioning screws and tightening screws.
4. D-shaped hole positioning: under normal circumstances, if the shaft of the motor is in a D-shaped shape, if the positioning screw cannot be fixed, the hole of the coupling can be processed into a D-shaped hole corresponding to the size of the motor shaft to match the positioning Fastened with screws, you don't have to worry about slipping.
5. Positioning of the expansion sleeve: The expansion sleeve is fixed by tightening the four positioning screws on the end face of the coupling. It is suitable for the connection and fixation of some stepper motors and servo motors with large torque, such as expansion sleeve diaphragm coupling , Expansion sleeve plum coupling, expansion sleeve bellows coupling, etc.
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