Cutting head with self-contained power source
AssigneeCoaltex, Inc.
InventorFrank A. Delli-Gatti, Jr.
Life of this patent
Estimating the term…
Abstract
A cutting drum for a mining machine that requires only a single supporting arm, and single interior motor for rotation of the cutting drum. The drum has two body portions which are spaced apart a distance sufficient to receive the supporting arm along the axis of the drum. A cutting chain is operatively connected by sprocket teeth to each of the body portions, one of the body portions being driven by a shaft of the interior motor through reduction planetary gears. Only a single stage reduction need be provided. One of the body portions may be formed so that it is longitudinally reciprocal along the axis of the drum to vary the cutting height or width.
Claims23
A generally cylindrical cutting drum for a mining machine or the like comprising first and second generally cylindrical body portions spaced from each other along the longitudinal axis of the drum cylinder, each of said body portions having cutting projections formed on the exterior surfaces thereof,
- a power source for rotating said first body portion, said power source contained completely with the cylinder of the cutting drum, and
- means for effecting rotation of the second body portion upon rotation of the first body portion, said means including a cutting chain, powered only by said source, in operative association with both said body portions and operatively bridging the space therebetween.
A cutting drum for a mining machine or the like comprising
- a generally cylindrical cutting surface having cutting projections formed thereon, and having an axis of the cylinder and a pair of cylinder end faces, said cutting surface comprising two, first and second, discrete body portions, said body portions spaced from each other along the longitudinal axis of the cylinder;
- a single supporting arm for said cutting drum, said supporting arm extending perpendicular to the axis of said cutting surface intermediate the end faces thereof,
- a power source for effecting rotation of said cylindrical cutting surface about said axis, said power source comprising a single motor disposed within the volume defined by said cylindrical cutting surface, and a motor shaft, said motor having portions thereof extending axially on either side of said single supporting arm, and
- means for transferring rotation of said motor shaft into rotation of said cutting surface, said means comprising gear reduction means operatively connected to an interior portion of said cutting surface and to said motor shaft, said interior portion comprising an interior portion of said first body portion;
- and said transferring means further comprising a cutter chain means, powered only by said source, interconnecting said first and second body portions.
Dependencies are inferred from the claim text.