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US 2021/0277623 A1Published application
Bucket for Underground Loading Machine
AssigneeCaterpillar Underground Mining Pty. Ltd.
InventorRiley A. Albers
Life of this patent
Estimating the term…
Abstract
A bucket for an underground loading machine includes an opened bucket front and a concaved bucket back. To provide abrasive wear resistance, the bucket includes a paddle plate joined to the bucket underside of the bucket floor. The paddle plate can have a trumpet-shape tapering from flared forward edge to a plate tail disposed toward the concaved bucket back. The bucket may be configured as a wedge bottomed bucket and include a plurality of spacer wedges disposed between and spacing apart the bucket underside and the paddle plate.
Claims20
A bucket for a loading machine comprising:
- a bucket shell assembly including an opened bucket front and a concaved bucket back defining a bucket depth along a bucket centerline extending from the opened bucket front to the concaved bucket back;
- the bucket shell assembly further including a center shell, a first outer shell flanking the center shell to a first lateral side, and a second outer shell flanking the center shell to a second lateral side with the center shell offset forwardly along the bucket centerline with respect to the first outer shell and the second outer shell;
- the bucket shell assembly further including a first sidewall joined to the first outer shell and a second sidewall joined to the second outer shell, the first and second sidewalls defining a lateral dimension of the bucket shell assembly;
- a paddle plate joined to a bucket underside, the paddle plate having a trumpet-shape tapering from a flared forward edge extending the lateral dimension of the bucket to a plate tail disposed rearward toward the concaved bucket back;
- and
- a first backstay and a second backstay each extending on a rearward angle between the plate tail and the concaved bucket back, the first backstay and the second backstay each associated with a backstay side plate to provide an enclosed space between the paddle plate and the concaved bucket back.
3 more elements
A bucket for a loading machine comprising:
- a bucket shell assembly including an opened bucket front and a concaved bucket back, the bucket shell assembly further including a bucket floor and a bucket roof with the concaved bucket back interconnecting the bucket floor and the bucket roof;
- the bucket shell assembly further including a center shell, a first outer shell flanking the center shell to a first lateral side, and a second outer shell flanking the center shell to a second lateral side;
- a paddle plate joined to a bucket underside of the bucket floor to provide a separation gap between the paddle plate and the bucket under side;
- and
- a plurality of spacer wedges disposed in the separation gap with a first spacer wedge of the plurality of spacer wedges overlapping a first weld seam between the center shell and the first outer shell and a second spacer wedge of the plurality of spacer wedges overlaps a second weld seam between the center shell and the second outer shell.
2 more elements
A bucket for a loading machine comprising:
- a bucket shell assembly including an opened bucket front, a concaved bucket back, a bucket floor extending between the opened bucket front and the concaved bucket back, and a bucket roof extending between the opened bucket front and the concaved bucket back disposed above the bucket floor;
- the bucket shell assembly further including a center shell, a first outer shell flanking the center shell to a first lateral side, and a second outer shell flanking to a second lateral side, wherein the center shell is offset toward the opened bucket front with respect to the first outer shell and the second outer shell;
- a paddle plate joined to a bucket underside of the bucket floor, the paddle plate having a trumpet-shape tapering from a flared front edge extending across a lateral extension of the bucket to a plate tail disposed rearward toward the concaved bucket back;
- a first backstay and a second backstay extending at a rearward angle between the plate tail and the concaved bucket back, the first backstay and the second backstay each associated with a backstay side plate to provide an enclosed space between the paddle plate and the concaved bucket back;
- and
- a plurality of spacer wedges located between and spacing apart the bucket underside and the paddle plate.
3 more elements
Dependencies are inferred from the claim text.