Patent ID: 9205427
Filing Date: 2015-12-08
Classification: B02C

Abstract:
1. A gyratory crusher outer crushing shell comprising: a main body mountable within a region of a topshell frame of a gyratory crusher, the main body extending around a central longitudinal axis, the main body having a mount surface being outwardly facing relative to the axis for positioning opposed to at least a part of the topshell frame and a crushing surface being inwardly facing relative to the axis to contact material to be crushed; at least one wall defined by and extending radially between the mount surface and the crushing surface, the wall having a first upper axial end and a second lower axial end; a raised first contact region positioned axially towards the first upper axial end and extending radially outward relative to the mount surface and in a direction around the axis, the contact region having a radially outward facing raised first contact surface for positioning opposed to a radially inward facing surface of the topshell frame; a raised second contact region positioned axially towards the second lower axial end and extending radially outward relative to the mount surface in a direction around the axis, the second contact region having a radially outward facing raised second contact surface for positioning opposed to a radially inward facing surface of the topshell frame, the second contact surface extending continuously over the mount surface and around the axis; and a channel extending around the axis and recessed radially inward relative to the first and second raised contact regions to axially separate the first and second raised contact regions, wherein the first contact surface is discontinuous in a direction around the axis via at least one groove extending radially inward within the first raised contact region to provide a pathway through the raised first contact region in the axial direction between a region of mount surface at the first upper axial end and the channel, the at least one groove extending radially by a distance corresponding substantially to at least a full radial depth of the first raised contact region and in a direction axially upward within the first raised contact region from the axially lower channel.