Cutting device and support for same
AssigneeJoy Global Underground Mining LLC
InventorStuart Reeves
Life of this patent
Estimating the term…
Abstract
A cutting assembly is provided for a rock excavation machine having a frame. The cutting assembly includes a base portion configured to be supported by the frame, a flexible shaft, and a cutting device. The base portion defines a base axis. The flexible shaft includes a first end and a second end opposite the first end. The first end is coupled to the base portion, and the second end is movable relative to the first end and deflectable away from the base axis. The cutting device is supported on the second end of the flexible shaft.
Claims20
A cutting assembly for a rock excavation machine having a frame, the cutting assembly comprising:
- a base portion configured to be supported by the frame, the base portion defining a base axis;
- a flexible shaft including a first end and a second end opposite the first end, the first end coupled to the base portion, the second end being movable relative to the first end and deflectable away from the base axis;
- and
- a cutting device supported on the second end of the flexible shaft.
A cutting assembly for a rock excavation machine, the cutting assembly comprising:
- a base portion;
- a cutting device including a cutting edge;
- and
- a flexible shaft supporting the cutting device relative to the base portion, the flexible shaft including a first end, a second end opposite the first end, and a shaft axis extending therebetween, the first end coupled to the base portion, the second end coupled to the cutting device, a width of the flexible shaft tapering inwardly in a direction between the first end and an intermediate position located between the first end and the second end, the width of the flexible shaft tapering inwardly in a direction between the second end and the intermediate position, the width of the flexible shaft proximate the intermediate position being less than the width proximate the first end and less than the width proximate the second end.
A cutting assembly for a rock excavation machine, the cutting assembly comprising:
- a base portion including a first structure and a second structure supported for movement relative to the first structure along a base axis;
- a cutting device including a cutting edge, the cutting device positioned adjacent a distal end of the second structure;
- and
- a flexible shaft including a first end, a second end opposite the first end, and a shaft axis extending therebetween, the flexible shaft further including an intermediate position located between the first end and the second end, deflection of the flexible shaft moving the second end away from the base axis, the first end coupled to a proximal end of the second structure, the second end coupled to the cutting device, a width of the flexible shaft reducing inwardly in a direction between the first end and the intermediate position, the width of the flexible shaft reducing inwardly in a direction between the second end and the intermediate position, the width of the flexible shaft proximate the intermediate position being less than the width proximate the first end and less than the width proximate the second end.
Dependencies are inferred from the claim text.