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.
Sensor Installation
Attach the vibration sensors firmly to the machine casing in areas with the highest vibration amplitude, usually close to the bearing supports.
Aim the optical rpm sensor at the rotating shaft and apply a reflective strip to the shaft for phase angle data acquisition.
Software Startup
Launch the Balanset software on your computer.
Select the appropriate balancing mode: single-plane or two-plane, depending on the rotor type and your specific requirements.
Taking Baseline Vibration Readings
Bring the rotor to its normal operating rotational frequency.
The software will measure the vibration level, rotational speed, and phase angle. This data establishes the current imbalance condition.
Trial Weight Installation
Halt the rotation and mount a test weight at a designated position on the rotor, with the weight’s value entered into the software (usually in grams).
Restart the rotor, and the software will record the changes in vibration level and phase angle.
Determining the Corrective Mass
Using the acquired measurements, the program automatically determines the required corrective weight’s mass and angular position.
The calculated values are presented on-screen in both numerical and graphical formats.
Installing the Correction Weight
Install the correction weight on the rotor according to the software’s calculations.
If necessary, perform intermediate checks to verify that the imbalance is being reduced.
Final Check and Balance Confirmation
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.
Creating a Balancing Report
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.
Final Recommendations
Verify the secure attachment of all balancing weights and measurement sensors.
Check that the rotor’s rotation is smooth and free from undue noise or vibration.
If the rotor operates within a larger assembly, check the functionality and interplay of all interconnected parts.
This process allows for precise imbalance correction, reducing vibration and extending equipment life.
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Janar Kirn
