Patent ID: 8622331

Claim:
A gyratory cone crusher including: a support frame having a vertical axis X; a receiving formation mounted rigidly in the frame, a central vertical axis of the receiving formation being in line with vertical axis X; a non-rotary crushing head slideably engaged with the receiving formation and having a first, upwardly presented conical crushing surface; a non-rotary crushing bowl having a second, downwardly presented funnel-shaped second crushing surface spaced apart from the first crushing surface, the crushing bowl being mounted in a housing so that a central axis Z of the crushing bowl is positioned at an angle oblique to vertical axis X; a flywheel mounted rotatably about vertical axis X, the flywheel including a passage having a central axis located in line with axis Z for receiving the housing therein, the housing being inhibited from rotating with the flywheel by a retaining formation; and a drive means for driving the flywheel; wherein rotation of the flywheel causes the housing and thereby the crushing bowl and second crushing surface to gyrate about axis Z.