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The rotation of the two shafts connected by the diaphragm coupling should be strictly concentric, so align and align it during installation, otherwise it will cause a lot of stress on the coupling, generate a lot of noise, and shorten The service life of the coupling will seriously affect the normal operation of the shaft, bearing and other parts on the shaft, and even cause vibration or damage to the entire machine and foundation.Therefore, the search of the diaphragm coupling is one of the important work links in the installation and maintenance process.
XNUMX. Preliminary alignment.Use a knife-shaped ruler and feeler gauge to measure the misalignment of the coupling and use a wedge-shaped clearance rail or feeler gauge to measure the unparallelism of the end face of the coupling. This method is suitable for preliminary alignment or low-speed, low-precision elasticity Coupling.
XNUMX. Correct the dial indicator.Use a dial indicator or a aligning tool to measure the misalignment and non-parallelism of the two coupling halves. At least four points must be taken as the detection base points, and the two coupling halves must be tested for each other.This method is suitable for rotating equipment with high speed, rigid connection and high precision requirements.
Please note:
1. When using feeler gauges and knife-shaped gauges for alignment, the surface of the radial end face of the coupling should be flat, smooth, rust-free, and burr-free.
2. In order to see the light of the knife-shaped ruler, use a flashlight.
3. For the final measured value, the anchor bolts of the motor should be tightened.
4. When aligning with the tool, make the same mark. In order to avoid the increase of the measurement data error, the coupling flange should be divided into 4-8 points in order to obtain the data.
5. Make alignment records and related marks.