Shanghai Shenman Dynamic Balancing Machine Factory popularizes how to reasonably select the balance accuracy level corresponding to different types of rotor workpieces in different industries, and calculate the balance accuracy level based on a simplified calculation formula for imbalance.
Simplified calculation formula for imbalance:
M - rotor mass unit (kg)
G ------ Precision level selection unit (g.mm/kg)
R ------ Correction radius unit (mm)
N ------ Working speed unit of the workpiece (rpm)
M - Unbalanced qualified quantity unit (g)
Reasonable selection of balance accuracy level:
Example of rotor type with accuracy level G (g.mm/kg)
G630 630 rigid installation of crankshaft drive components for marine diesel engines; Rigid installation of crankshaft drive components for large four stroke engines
The crankshaft drive component of a G250 250 rigid mounted high-speed four cylinder diesel engine
Crankshaft drive components for G100 100 six cylinder and multi cylinder diesel engines. A complete set of gasoline and diesel engines used in automobiles, trucks, and locomotives.
G40 40 car wheels, hoops, and overall wheels; Drive components for engines used in automobiles, trucks, and locomotives.
Parts of G16 16 crusher and agricultural machinery; Individual parts of gasoline and diesel engines used in automobiles, trucks, and locomotives.
G6.3 6.3 Gas and steam turbines, including rigid turbine engine rotors for marine (merchant) main turbines; Turbocharger; Machine tool drive components; Medium and large motor rotors with special requirements; Small motor rotor; Turbopump.
G2.5 2.5 gears for the main turbine of seagoing vessels (merchant ships); Impeller of centrifugal separator and pump; Fan; Rotor components of aviation gas turbines; Flywheel; General parts of machine tools; Ordinary motor rotor; Individual parts of engines with special requirements.
G1 1 magnetic tape recorder and record player driver; Grinding machine drive parts; Small armatures with special requirements.
The spindle, grinding wheel, armature, and gyroscope of G0.4 0.4 precision grinding machine.