Rope shovel with curved boom
AssigneeHarnischfeger Technologies, Inc.
InventorsWilliam J. Hren, Rainer Poetter
Life of this patent
Estimating the term…
Abstract
A mining shovel includes a digging assembly having a generally V-shaped boom including a lower connection point for attachment to the mining shovel. A first portion of the boom extends generally upwardly from the lower connection point, and a second portion of the boom is angled with respect to and extends upwardly and forwardly from the first portion. The second portion includes a distal end defining a sheave support, and a pivot element is positioned generally at a connection area between the first portion and the second portion. The digging assembly also includes a boom attachment having a first end that is pivotally supported by the pivot element and a second end that is supported by the sheave support.
Claims16
A digging assembly for a mining shovel, the assembly comprising:
- a boom including a lower connection point for attachment to the mining shovel, a first portion extending generally upwardly from the lower connection point, a second portion angled with respect to and extending upwardly and forwardly from the first portion, the second portion including a distal end defining a sheave support, and a pivot element positioned between about zero degrees and about 10 degrees from a vertical line extending directly upwardly from the lower connection point;
- and
- a boom attachment having a first end that is pivotally supported by the pivot element and a second end;
- and
- a digging attachment coupled to the second end of the boom attachment.
A mining shovel comprising:
- a lower base;
- an upper base rotatably mounted on the lower base for rotation relative to the lower base;
- a boom including a lower connection point for attachment to the upper base, a first portion extending generally upwardly from the lower connection point, a second portion angled with respect to and extending upwardly and forwardly from the first portion, the second portion including a distal end defining a sheave support, and a pivot element positioned between about zero degrees and about 10 degrees from a vertical line extending directly upwardly from the lower connection point;
- and
- a sheave rotatably supported by the sheave support;
- a boom attachment having a first end that is pivotally supported by the pivot element and a second end connected to a dipper;
- and
- a rope extending from the upper base, over the sheave, and connected to the dipper for support thereof.
Dependencies are inferred from the claim text.