Axial deviation and installation positioning of plum coupling

Plum couplingIt has good balance performance and is suitable for high-speed applications (speed up to 30000 rpm), but it cannot handle large deviations, especially axial deviations.Larger eccentricity and deflection angle will produce a larger bearing load than other servo couplings.Another issue of concern is the failure of the plum blossom coupling.Once the quincunx elastic spacer is damaged or fails, the torque transmission will not be interrupted, and the metal claws of the two shaft sleeves mesh together to continue to transmit the torque, which is likely to cause problems in the system.Choosing 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 resistance, allowing customers to choose the right material to meet the actual application. Performance standards.

The coupling is in the mechanical transmissionAs one of the important parts, the installation and positioning of the coupling are as follows: positioning screw positioning, tightening screw positioning, keyway positioning, D-shaped hole positioning, pole clamping sleeve positioning, the following is an explanation of these coupling installation positioning the benefits of:

1. Positioning screw positioning: two 90° screw holes are made on the outer circle of the coupling, and the positioning screw fixes the coupling on the shaft through these two holes. This is a relatively common fixing method. Since the tip of the screw contacts the shaft, it may cause damage to the shaft or difficulty in disassembly.

2. Tighten the screw positioning: cut slits on the coupling.Utilize the tightening force of the screw of the coupling factory to deform the slit and lock the shaft tightly.This method is convenient to fix and disassemble, and will not cause damage to the shaft, so 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 fixed with positioning screws and tightening screws.

4. D-shaped hole positioning: under normal circumstances, if the motor shaft is D-shaped, if the positioning screw cannot be fixed, the coupling hole can be processed into a D-shaped hole corresponding to the size of the motor shaft, and the positioning is coordinated The screws are fixed, so there is no need to worry about slipping.

5. The positioning of the expansion sleeve: the expansion sleeve is fixed by tightening the four positioning screws on the end of the coupling to compress the expansion sleeve, which is suitable for the connection and fixing of some stepping motors and servo motors with large torque, such as expansion sleeve diaphragm couplings , Expansion sleeve plum coupling, expansion sleeve bellows coupling, etc.