Cast and a shaft assembly for a disc screen
AssigneeTana Oy
InventorsJarkko Ruotsalainen, Kari Rautakoski
Life of this patent
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Abstract
The invention relates to a cast and adjacent casts on a shaft for providing a shaft assembly for a disc screen. A cast which is placeable on a shaft for a disc screen comprises a screening element part with an integral sleeve part. The shaft assembly for a disc screen comprises casts placed on the shaft, each cast comprising a screening element part and an integral sleeve part, the casts being placed against each other so that abutting screening element parts of two adjacent casts constitute a screening element, and abutting sleeve parts of two adjacent casts constitute a sleeve element on the shaft.
Claims13
A cast which is placeable on a shaft for a disc screen, the cast comprising a screening element part and an integral sleeve part, wherein the screening element part constitutes a disc-like part around the shaft, and abutting screening element parts of two adjacent casts constitute a screening element, and which sleeve part is configured to define axial spacing between two adjacent screening elements,
- wherein only outer fringes of said screening element parts of two adjacent casts are abutted each other so that the constituted screening element is hollow and an empty space is left between the two adjacent casts when placed around the shaft.
A cast which is placeable on a shaft for a disc screen, the cast comprising a screening element part and an integral sleeve part, wherein the screening element part constitutes a disc-like part around the shaft, and abutting screening element parts of two adjacent casts constitute a screening element, and which sleeve part is configured to define axial spacing between two adjacent screening elements,
- wherein only outer fringes of said screening element parts of two adjacent casts are abutted each other so that the constituted screening element is hollow, and
- wherein the screening element part comprises a disc-like part which extends in a substantially transverse direction from the sleeve part, as well as an outer fringe which extends in a substantially transverse direction from the disc-like part, substantially in parallel with the sleeve part, in a direction opposite to the sleeve part.
A cast which is placeable on a shaft for a disc screen, the cast comprising a screening element part and an integral sleeve part, wherein the screening element part constitutes a disc-like part around the shaft, and abutting screening element parts of two adjacent casts constitute a screening element, and which sleeve part is configured to define axial spacing between two adjacent screening elements,
- wherein only outer fringes of said screening element parts of two adjacent casts are abutted each other so that the constituted screening element is hollow, and
- wherein the outer surface of the sleeve part is provided with a groove extending in the longitudinal direction of the sleeve part, optionally extending to the disc part of the screening element part.
A shaft assembly for a disc screen, comprising casts to be placed on a shaft, wherein each cast comprises a screening element part and a sleeve part which are integrated and are placed against each other so that abutting screening element parts of two adjacent casts constitute a screening element, and abutting sleeve parts of two adjacent casts constitute a sleeve element on the shaft, and which sleeve parts are configured to define an axial spacing between the screening element parts of the two adjacent screening elements,
- wherein only outer fringes of said screening element parts of two adjacent casts are abutted each other so that the constituted screening element is hollow and an empty space is left between the two adjacent casts when placed around the shaft.
Dependencies are inferred from the claim text.