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US 10,144,622 B2Granted
Modular hoist drum for power shovel
AssigneeCaterpillar Global Mining LLC
InventorsAruna Kinjarapu, Robin Varghese, Sivakumar Subramaniam, Tridib K. Das, Joseph A. Rapp, Narendra Thippappa, Gurbachan S. Bumraw
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Abstract
A modular hoist drum is disclosed for use with a power shovel. The modular hoist drum may have a first outer body, a second outer body, and an anchor body that are hollow and generally cylindrical. The anchor body is connected between the first outer body and the second outer body. The anchor body may include an internal anchor configured to receive a ferrule.
Claims16
A modular hoist drum, comprising:
- a first outer body;
- a second outer body including an end casting coupled to an outer end of the second outer body, the end casting having an outermost diameter substantially equal to an outer diameter of an annular surface of the modular hoist drum and the end casting being adjacently positioned to the outer end of the second outer body such that an outer edge of the end casting and the annular surface of the modular hoist drum create a substantially continuous surface;
- an anchor body disposed between and connected to each of an inner end of the first outer body and an inner end of the second outer body such that the modular hoist drum is hollow and generally cylindrical;
- an internal anchor recessed within an outer annular surface of the modular hoist drum the internal anchor includes a flat bottom surface orientated perpendicular to a central axis of the modular hoist drum and non-tangential with the outer annular surface of the modular hoist drum;
- and
- at least two retainers formed within the internal anchor that are axially aligned and oppositely positioned across the flat bottom surface from each other, the at least two retainers extend axially inward from an outer curved surface of the anchor body and spaced radially above the flat bottom surface of the internal anchor such that a space is defined within the internal anchor to receive a ferrule.
3 more elements
A power shovel, comprising:
- a machine frame;
- a boom pivotally connected at a base end to the machine frame;
- a dipper handle pivotally connected at a midpoint of the boom;
- a dipper pivotally connected to a distal end of the dipper handle;
- a rope extending over a distal end of the boom to connect to the distal end of the dipper handle;
- and
- a modular hoist drum connected to the machine frame and configured to reel in the rope, the modular hoist drum including:
- a first outer body;
- a second outer body including an end casting coupled to an outer end of the second outer body, the end casting having an outermost diameter substantially equal to an outer diameter of an annular surface of the modular hoist drum and the end casting being adjacently positioned to the outer end of the second outer body such that an outer edge of the end casting and the annular surface of the modular hoist drum create a substantially continuous surface;
- an anchor body disposed between and connected to each of an inner end of the first outer body and an inner end of the second outer body such that the modular hoist drum is hollow and generally cylindrical;
- an internal anchor recessed within an outer annular surface of the modular hoist drum, the internal anchor includes a flat bottom surface orientated perpendicular to a central axis of the modular hoist drum and non-tangential with the outer annular surface of the hoist drum;
- and
- at least two retainers formed within the internal anchor that are axially aligned and oppositely positioned across the flat bottom surface from each other, the at least two retainers extend axially inward from an outer curved surface of the anchor body and spaced radially above the flat bottom surface of the internal anchor such that a space is defined within the internal anchor to receive a ferrule;
- a plurality of annular grooves formed within the outer annular surface of the modular hoist drum;
- a hub extending outward in an axial direction from a center of the end casting;
- and
- a flange formed at an end of the first outer body and extending radially outward.
14 more elements
Dependencies are inferred from the claim text.