Disk screen apparatus, disk assemblies and method
AssigneeBeloit Corporation
InventorMichael L. Gill
Life of this patent
Estimating the term…
Abstract
Disk screen apparatus and disk assemblies therefore wherein each disk assembly comprises an elongate shaft adapted to be rotatably mounted in the disk screen apparatus. The shaft has elongate indexing and keying structure extending longitudinally along and rigid with the shaft and providing a longitudinally extending and circumferentially facing edge. The edge has a series of longitudinally spaced circumferentially extending indexing and keying notches therein. Annular screen disks are mounted on the shaft and have inner diameter key shoulders engageable in the notches. The keying structure may be raised along a longitudinal area on the cylindrical perimeter of the shaft or recessed along such area. A releasable locking bar is adapted for locking the key shoulders in the notches.
Claims20
A disk screen apparatus comprising a screening bed having a series of corotating spaced parallel elongate disk assemblies each of which has a longitudinal series of concentric screen disks which interdigitate in axially spaced relation with the screen disks on the adjacent disk assemblies, and comprising:
- each of said disk assemblies having an elongate shaft provided with means at opposite ends for rotatably mounting the assembly in the disk screen apparatus;
- an elongate indexing and keying structure extending longitudinally along and permanently rigid with the perimeter of said shaft and providing a longitudinally extending and circumferentially facing edge;
- said edge having a series of longitudinally spaced circumferentially extending indexing and keying notches therein for determining the positions of the disks relative to one another along the length of the shaft;
- said screen disks being annular and mounted on said shaft and having inner diameters which engage said shaft perimeter;
- key means on said inner diameters engageable in said notches;
- each of said disks being movable along the length of said shaft by sliding its inner diameter along said perimeter and with said key means freely movable along said edge until aligned with a selected notch, and the key means being then assembled in the aligned notch by relative rotation of the disk and shaft;
- and means for locking said disks in their selected positions with said key means in said notches and thereby retaining said disks spaced from one another in accordance with said notches and corotative with said shaft.
A disk assembly for a disk screen apparatus, comprising:
- an elongate shaft having means at opposite ends for rotatably mounting the assembly in the disk screen apparatus;
- an elongate indexing and keying structure extending longitudinally along and rigid with the perimeter of said shaft and providing a longitudinally extending and circumferentially facing edge;
- said edge having a series of longitudinally spaced circumferentially extending indexing and keying notches therein for determining the positions of the disks relative to one another along the length of the shaft;
- annular screen disks mounted on said shaft and having inner diameter key means engageable in said notches;
- each of said disks being movable along the length of said shaft by sliding its inner diameter along said perimeter and with said key means freely movable along said edge until aligned with a selected notch, and the key means being then assembled in the aligned notch by relative rotation of the disk and shaft;
- and means for locking said disks in their selected positions with said key means in said notches and thereby retaining said disks spaced from one another in accordance with said notches and corotative with said shaft.
A method of making a disk assembly for a disk screen apparatus, comprising:
- providing an elongate shaft having means at opposite ends for rotatably mounting the assembly in disk screen apparatus;
- providing on said shaft an elongate indexing and keying structure extending longitudinally and rigid with the shaft and with a longitudinally extending and circumferentially facing edge;
- forming in said edge a series of longitudinally spaced circumferentially extending indexing and keying notches;
- mounting on said shaft annular screen disks having inner diameter key means;
- sliding said disks along said shaft and along said edge and aligning said key means of each disk with a selected notch;
- engaging said key means in said notches by relatively rotating said disks and said shaft;
- and locking said disks in place with said key means in said notches and thereby retaining said disks spaced from one another in accordance with said notches and corotative with said shaft.
Dependencies are inferred from the claim text.