Role of Flywheel in Jaw crusher
From the study of kinematic behavior of jaw crushers it has been found that for one complete rotation of the crank the forces developed on the moving jaw plate varies. At some region this force is sufficiently large to crush the material and in some zone this force could produce a stress less than the ultimate stress of the fed material. Hence to get the fed crushed in a regular time the energy lost during over supply should be utilized when the supply value falls below the requirement mark. To produce this effect every jaw crusher is equipped with a heavy flywheel with significant moment of inertia.
Energy stored in a flywheel:
Let m = mass of the flywheel in Kg
K= radius of gyration of the flywheel
I= mass moment of inertia of the flywheel
ω1 and ω2= maximum and minimum angular speed during the cycle in rpm
ω = mean angular speed during the cycle in radian
Cs= coefficient of fluctuation of speed = (ω1-ω2)/ ω
Maximum fluctuation of energy = maximum KE – Minimum KE
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