Patent ID: 8979009
Filing Date: 2015-03-17
Classification: B02C,Y10T

Abstract:
1. A gyratory crusher comprising: a bowl shaped as a cone and having a wider opening approaching a top portion of the crusher, and wherein the bowl has an inner shell, which is backed by a concrete outer shell; a head assembly shaped as a cone, centrally located within the bowl and having a larger diameter at a bottom end portion of the bowl, so that the bowl and head assembly form a crushing volume which is larger at the top portion and smaller at the bottom end, with the head assembly including a central mainshaft which is located on an inclined axis within the bowl; and a cylindrical eccentric assembly including an eccentric central volume in which the main shaft is held so that, as the eccentric assembly rotates, the mainshaft gyrates, with the eccentric assembly rotating about a center hole within a central hub of the crusher.