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US 8,943,714 B2Granted
Shovel having a wristing dipper
AssigneeHarnischfeger Technologies, Inc.
InventorWilliam J. Hren
Life of this patent
Estimating the term…
Abstract
A rope shovel includes a wristing dipper arrangement. The shovel comprises a base, a boom extending from the base, the boom having a first end attached to the base and a second end remote from the base. The shovel further comprises a pulling mechanism mounted on the second end of the boom and a boom attachment pivotally mounted on the boom and attached to a dipper, the boom attachment including an actuator coupled to the dipper.
Claims21
A mining shovel comprising:
- a base;
- a boom extending from the base, the boom having a lower end attached to the base and an upper end remote from the base;
- a pulling mechanism mounted on the upper end of the boom;
- a boom attachment having a first end pivotally coupled to the boom and a second end;
- a boom attachment actuator extending between the boom attachment and at least one of the base and the boom, wherein the boom attachment actuator is operable to pivot the boom attachment relative to the boom;
- a dipper pivotally connected to the second end of the boom attachment for pivoting movement about the second end of the boom attachment in a first direction and a second direction opposite the first direction, the dipper moveably supported by the pulling mechanism;
- and
- a dipper actuator coupled between the boom attachment and the dipper and operable to selectively pivot the dipper relative to the boom attachment in the first direction and the second direction.
5 more elements
A mining shovel comprising:
- a base;
- a boom having a first boom end coupled to the base and a second boom end;
- a pulling mechanism at the second boom end;
- a boom attachment having a first portion coupled to the boom between the first boom end and the second boom end, and a second portion pivotally coupled to the first portion and supported by the pulling mechanism;
- a dipper coupled to the second portion of the boom attachment;
- and
- a dipper actuator coupled between the boom attachment and the dipper and operable to pivot the dipper with respect to the second portion.
4 more elements
A mining shovel comprising:
- a base;
- a boom having a first boom end coupled to the base and a second boom end;
- a pulling mechanism at the second boom end;
- a boom attachment having a first portion coupled to the boom between the first boom end and the second boom end, and a second portion pivotally coupled to the first portion and supported by the pulling mechanism;
- a boom attachment actuator extending between the boom attachment and at least one of the base and the boom, the boom attachment actuator operable to pivot the boom attachment relative to the boom;
- a dipper pivotally coupled to the second portion of the boom attachment;
- and
- a dipper actuator coupled between the boom attachment and the dipper and operable to pivot the dipper relative to the boom attachment.
5 more elements
Dependencies are inferred from the claim text.