## Analysis on vibration isolation system of concrete crusherPosted by lily lily on June 21st, 2019 Load acting on Body of concrete crusher is located on the isolation system; if set shear elastic stiffness of vibration isolation system as K, total mass of material in concrete crushing machine as M, inertial force of concrete crusher in any horizontal direction as Fc, then the spring mass system of concrete crushing machine can be shown in the figure below. The first part is self-vibration of inherent frequency Wn, AA is free vibration amplitude, A2 is initial phase of crushing motion. The second part is the forced vibration of inertial force w. As damping always exist in actual vibration system, so with time going on, free vibration part of the primary crusherwill decay. If Wn=w, the amplitude will be infinitely great, this phenomenon is known as resonance. When choosing vibration isolation system, inherent frequency Wn must be away from the inertia force frequency w, to avoid resonance. As shear elastic stiffness of rubber spring is smaller and affordable to multi-direction loads with large damp, it has good effect on absorbing shock and high frequency vibration and reducing noise, therefore, it is ideal to adopt rubber spring as vibration element of concrete crushing machine. ## Like it? Share it!## More by this author |