Calculation formula of dynamic balance maneuver balance correction
Calculation formula of dynamic balance maneuver balance correction
(9549*0.2*6.4)/(20*1000)=0.6(g) Simplified calculation formula for unbalanced quantity:
m=9549MG/r×n
G——The accuracy grade is M – the rotor mass unit (kg)
R——correction radius unit (mm)
n——Working speed of the workpiece Unit (rpm)
M——unbalanced qualified quantity unit (g)
The formula for allowing the amount of unbalance is:
Where mper is the allowable unbalance amount, the unit is g;
M represents the rotor's own weight in kg;
G represents the balance accuracy level of the rotor, the unit is mm/s;
r represents the corrected radius of the rotor in mm;
n represents the rotational speed of the rotor in rpm.
Examples are as follows:
For example, the balance accuracy of a motor rotor is G6.3, the weight of the rotor is 0.2kg, the rotor speed is 1000rpm, and the correction radius is 20mm.
Then the allowable unbalance of the rotor is: (9549*0.2*6.4)/(20*1000)=0.6(g)
Since the rotor of the motor is generally balanced on both sides, the allowable unbalance amount assigned to each side is 0.3 g.
Before selecting a dynamic balancing machine, the balance accuracy required by the rotor should be considered.
