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US 10,537,895 B2Granted
Crushing shell with profiled crushing surface
AssigneeSandvik Intellectual Property AB
InventorsPer Svedensten, Elisabeth Lee, Hannes Larheden
Life of this patent
Estimating the term…
Abstract
A gyratory crusher crushing shell having a mount face for contacting a support region of the crusher and a crushing face to contact material to be crushed and passing through the crushing zone. The crushing shell includes a plurality of wedges project radially from the crushing surface, the wedges being spaced apart in a circumferential direction around the axis to define channels extending axially between the wedges.
Claims18
A gyratory crusher inner crushing shell comprising:
- a main body mountable within a crushing zone defined by a frame of a gyratory crusher, the main body extending around a central longitudinal axis, the main body having a mount surface for positioning opposed to the frame or a crusher head movably mounted within the crushing zone and a crushing surface arranged to contact material to be crushed, a wall defined by and extending between the mount and crushing surfaces, the wall having an axially upper first end and an axially lower second end;
- a plurality of wedges projecting radially outward at the crushing surface and distributed in a circumferential direction around the central longitudinal axis, each of the plurality of wedges extending axially downward in an axial direction from below an axially upper region of the axially upper first end, and each of the plurality of wedges being terminated in the circumferential direction by a pair of lengthwise shoulders;
- and
- a plurality of axially extending channels defined by and positioned in the circumferential direction between the shoulders of opposed wedges, wherein the crushing surface at the region of each of the plurality of wedges has a concave shaped profile in the axial direction, each of the plurality of wedges being positioned below the axially upper region so as to not extend into an axially lower region of the crushing surface.
1 more element
A gyratory crusher comprising:
- a frame;
- a crushing zone defined by the frame;
- a crusher head;
- and
- at least one inner crushing shell, the inner crushing shell including a main body mountable within the crushing zone, the main body extending around a central longitudinal axis, the main body having a mount surface for positioning opposed to the frame or the crusher head movably mounted within the crushing zone and a crushing surface arranged to contact material to be crushed, a wall defined by and extending between the mount and crushing surfaces, the wall having an axially upper first end and an axially lower second end, a plurality of wedges projecting radially outward at the crushing surface and distributed in a circumferential direction around the central longitudinal axis, each of the plurality of wedges extending axially downward in an axial direction from below an axially upper region of the axially upper first end, and each of the plurality of wedges being terminated in the circumferential direction by a pair of lengthwise shoulders, and a plurality of axially extending channels defined by and positioned in the circumferential direction between the shoulders of opposed wedges wherein the crushing surface at the region of each of the plurality of wedges has a concave shaped profile in the axial direction, each of the plurality of wedges being positioned below the axially upper region so as to not extend into an axially lower region of the crushing surface.
2 more elements
Dependencies are inferred from the claim text.