Drive mechanism for mining attachment
AssigneeHarnischfeger Technologies, Inc.
InventorAndrew P. Dretzka
Life of this patent
Estimating the term…
Abstract
A rope shovel has a boom and a hoist rope. The boom has a first end and a second end. The hoist rope extends over the second end of the boom. A digging assembly for the rope shovel includes a shaft, an elongated member supported for movement relative to the boom, an attachment, and a drive link. The shaft is positioned between the first end and the second end of the boom and transverse to the boom, and the shaft includes at least one pinion gear. The elongated member includes a first end and a second end. The attachment is coupled to the first end of the elongated member and is configured to be coupled to the hoist rope. The drive link includes a rack engaging the pinion gear of the transverse shaft such that rotation of the pinion gear moves the drive link and actuates the attachment.
Claims25
An industrial machine comprising:
- a boom having a first end and a second end;
- an elongated member movably coupled to the boom and including a first end and a second end;
- an attachment coupled to the first end of the elongated member and including an actuator;
- a drive link movably coupled to the boom and movable relative to the elongated member;
- and
- a fluid actuator including a piston positioned in a cylinder, the fluid actuator including a first end and a second end coupled to the drive link, movement of the drive link driving operation of the attachment actuator.
An industrial machine comprising:
- a boom having a first end and a second end;
- an elongated member movably coupled to the boom and including a first end and a second end;
- an attachment coupled to the first end of the elongated member;
- a drive link movably coupled to the boom and movable relative to the elongated member;
- and
- a follower link including a first end pivotably coupled to the drive link and a second end coupled to the attachment such that movement of the drive link drives actuation of the attachment.
A digging assembly rope shovel including a boom and a hoist rope, the boom having a first end and a second end, the hoist rope extending over the second end of the boom, the digging assembly comprising:
- a shaft positioned between the first end and the second end of the boom and transverse to the boom, the shaft including at least one pinion gear;
- an elongated member supported for movement relative to the boom, the elongated member including a first end and a second end;
- an attachment coupled to the first end of the elongated member, the attachment configured to be coupled to the hoist rope;
- a drive link including a rack engaging the pinion gear of the transverse shaft such that rotation of the pinion gear moves the drive link and actuates the attachment.
Dependencies are inferred from the claim text.