Mulcher rotor balancing process

Rotor balancing is a critical process for minimizing vibrations and prolonging the lifespan of rotating machinery. This article aims to provide a comprehensive, step-by-step guide to conducting a two-plane rotor balancing operation using the Balanset-1A device. This method ensures high-precision dynamic balancing of the rotor in its operating condition.

Step-by-Step Balancing Process

Initial Setup

1. Mount Vibration Sensors: Position the vibration sensors perpendicular to the axis of the rotor’s rotation. Ensure they are securely attached to minimize noise in the data.
2. Tachometer Installation: Place the tachometer on its magnetic stand, ensuring it is aligned with the rotor.
3. Reflective Tape: Apply a strip of reflective tape on the pulley or rotor. Aim the RPM sensor towards the tape.
4. Device Connection: Connect the sensors to the Balanset-1A device, connect the Balanset-1A to a laptop equipped with the necessary software.

Software Configuration

5. Program Initialization: Launch the Balanset software on the laptop.
6. Mode Selection: Choose the option for “Two-plane balancing.”
7. Data Entry: Enter the rotor’s name and its location in the software interface for record-keeping.
8. Test Weight Data: Measure the test weight and note down its weight and radius of installation in the software.

Measurement and Analysis

9. Initial Measurement: Start rotation to measure the initial level of vibrations.
10. First Plane Test Weight: Mount the test weight in the first plane of the rotor. The first plane correlates to the location of the first sensor.
11. Data Collection: Start rotation the rotor and take a second measurement.
12. Validity Check: Verify that the vibration or phase shift has changed by at least 20% compared to the initial measurement. This ensures the test weight has been placed accurately.
13. Second Plane Test Weight: Remove the test weight from the first plane and install it on the second plane, which corresponds to the second sensor’s location.
14. Data Collection: Start rotation again to collect the third set of measurements.
15. Software Recommendations: The software will analyze the data and provide the amount of weight and the angle at which to install the correction weights on the first and second planes.

Final Adjustments

16. Weight Removal: Remove the test weight from the rotor.
17. Correction Weight: Measure and prepare the correction weights as indicated by the software.
18. Weight Installation: Weld the correction weights at the angles specified by the software.
19. Final Test: Rotate the rotor again to ensure that the balancing was successful.
20. Additional Weight: If the software suggests further corrections, adjust the weight accordingly and confirm the balance once more.

Conclusion

As outlined above, rotor balancing is a systematic process that is greatly simplified and made more accurate with the use of the Balanset-1A device. This method ensures that you achieve a dynamically balanced rotor, resulting in minimized vibrations and increased operational longevity.