Q1: How to choose a suitable dynamic balancing machine?
A1: The following factors need to be considered:
Rotor type: Different rotors such as shafts, discs, impellers, crankshafts, etc. require different types of balancing machines (such as horizontal/vertical). Weight and size: The maximum/minimum weight, length, and diameter of the rotor must be within the allowable range of the equipment.
Speed range: The maximum speed of the balancing machine should be higher than the working speed of the rotor (such as motor rotors usually require 3000-10000 RPM).
Accuracy requirements: Select equipment with appropriate accuracy according to industry standards (such as ISO 1940 G grade).
Degree of automation: manual, semi-automatic (automatic measurement + manual correction) or fully automatic (automatic measurement + automatic weight removal).
Q2: What are the basic operating procedures of a dynamic balancing machine?
A2:
Install the rotor: Make sure the rotor is properly fixed on the balancing machine (e.g. using a universal joint or a clamp).
Input parameters: Set the rotor weight, balancing speed, correction plane, etc.
Initial measurement: Start the equipment and measure the initial imbalance and phase.
Test weight correction: Add/remove test weights and adjust repeatedly until the residual imbalance meets the standard.
Verify the results: Final test to ensure that the vibration value meets the standard (e.g. ISO 1940 G2.5).
Q3: What factors affect the measurement accuracy of the dynamic balancing machine?
A3:
Mechanical factors: bearing wear, insufficient support stiffness, eccentric rotor installation.
Electrical factors: sensor signal interference, speed measurement error.
Environmental factors: ground vibration, air flow (such as fan influence).
Operational factors: test weight is not fixed firmly, parameter setting is wrong.
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