Design and Analysis of Modified Base Frame of a Cone Crusher

Abstract

Abstract Crushing is the process of reducing the size of ore into definite smaller sizes. Cone crusher is a size reduction mechanical equipment which crushes the large sized limestone and dolomite particles by squeezing it between gyrating spindles. Crusher must be mounted on a frame to be coupled with the motor drive. A base frame is designed in such a way that it acts as a platform for motor and cone crusher. As the motor and cone crusher performs its operations at higher frequencies, the base frame tends to fail because of the mechanical vibrations of system and larger torques induced in the mechanism between cone crusher and base frame. Failure of base frame is prevented by using the better I-Section beams whose strength and rigidity is high. Compensators absorbs the vibrations and helps the system to attain equilibrium. A set of compensators are placed all along the I-Section. These compensators are grounded using mechanical fasteners. In the course of this research it is observed that beam has a larger tendency of failure at certain cross sections. Stiffeners could be inserted at those locations for the better rigidity, support and strength of the entire structure. Modelling and Analysis is done individually to motor frame, crusher frame and on the entire assembly. An optimum system frequency was used, for the assembly to be at equilibrium in the dynamic conditions.