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Detailed Rotor Balancing Process
Equipment Preparation
- accelerometers, laser rpm sensor, mounting stand, software application, and additional tools.
- Establish a USB connection between the instrument and the computer, ensuring the software is set up properly.
Mounting the Sensors
- Fix the accelerometers securely to the machine's structure in locations where vibrations are most prominent, ideally near the bearings.
- Aim the optical rpm sensor at the rotating shaft and apply a reflective strip to the shaft for phase angle data acquisition.
Starting the Program
- Open the Balanset application on your PC.
- Select the appropriate balancing mode: single-plane or two-plane, depending on the rotor type and your specific requirements.
- Operate the rotor at its intended working speed.
- The program will record the vibration amplitude, rpm, and phase, providing a baseline measurement of the existing imbalance.
Mounting the Test Weight
- Stop the rotor and attach a trial weight at a specific location on the rotor. The weight's mass can be specified within the software (e.g., in grams).
- Run the rotor again, allowing the software to measure the effects of the trial weight on vibration and phase.
Determining the Corrective Mass
- The software uses the measured values to automatically compute the necessary compensating weight's magnitude and placement angle.
- The results of the calculation are shown both numerically and visually through charts and graphs.
Mounting the Compensating Weight
- Attach the computed compensating weight to the rotor as indicated by the software's output.
- You can conduct interim measurements to confirm that the imbalance is decreasing as expected.
Validation and Conclusion of the Balancing Process
- With the compensating weight attached, operate the rotor and assess the level of any residual vibration.
- The balancing procedure is finished if the remaining vibration is within the permissible limits specified in ISO 1940.
- Should the vibration still be excessive, repeat the balancing steps, making further adjustments to the corrective weight as needed.
Generating a Documentation of the Balancing Results
- All balancing results are logged and archived within the software, from which you can produce a printable report summarizing the vibration levels, compensating weight, and its installation position.
Concluding Steps and Verification
- Verify the secure attachment of all balancing weights and measurement sensors.
- Ensure the rotor rotates smoothly and without excessive noise.
- In cases where the rotor is integrated into a more complex system, ensure the correct operation and interaction of all related components.
Following this procedure enables accurate balancing, minimizes vibration, and prolongs the service life of the equipment. Instagram: https://www.instagram.com/vibromera_ou/ Youtube : https://youtu.be/guA6XJ-ArZM?si=vmkuX7RILzKBl0zL Our website about Balancing of refrigeration compressors |