Drive for rotating drum
AssigneeRisley Enterprises Ltd.
InventorReggald Emory Isley
Life of this patent
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Abstract
A drive mechanism for driving a drum, such as a mulcher drum comprises an intermediate shaft coupled to drive the drum by way of a flexible coupling. The flexible coupling may be located on an inside of a hub of the drum. A hydraulic or other motor is coupled to drive the intermediate shaft by a splined coupling. Lubrication of the splined coupling is enhanced by a supply of grease contained in a central passage within the intermediate shaft. The drive mechanism may be direct drive from a hydraulic or other suitable motor. The drive mechanism can be compact and robust against collateral damage resulting from failure of drum support bearings.
Claims13
A drive mechanism for a drum comprising:
- an intermediate shaft extending from an outer end through an axial bore in a hub of the drum, the axial bore being larger in diameter than the intermediate shaft so as to provide clearance between the axial bore of the hub and the intermediate shaft, the intermediate shaft coupled to drive a flexible coupling on an inner side of the drum, and,
- a motor coupled to drive the outer end of the intermediate shaft.
A splined coupling comprising:
- a first part comprising internal splines in a bore dimensioned to receive a second part comprising external splines dimensioned to interfit with the internal splines;
- a passage in fluid communication with the bore extending longitudinally along one of the first and second parts, the passage having a diameter smaller than the bore.
Dependencies are inferred from the claim text.