Articulated shearer
AssigneeJoy MM Delaware, Inc.
InventorsEdward F. Niederriter, Shawn W. Franklin
Life of this patent
Estimating the term…
Abstract
A longwall shearer mining machine that is mounted on a rail generally includes a first chassis portion with a first cutting arm mounted thereto and a second chassis portion with a second cutting arm mounted thereto. Each of the first and the second chassis portions is slidably coupled to the rail. The first and second chassis portions are coupled at a pivot joint. The pivot joint allows each of the first and the second chassis portions to adjust its respective orientation with respect to a horizontal ground plane when the articulated shearer travels over a hump or a valley, thereby maintaining sufficient headroom.
Claims17
A longwall shearer mining machine comprising:
- a first chassis portion with a first cutting arm mounted thereto;
- and
- a second chassis portion with a second cutting arm mounted thereto, wherein the first and second chassis portions are coupled at a pivot joint.
A longwall shearer mining machine that is mounted on a rail, the longwall shearer mining machine comprising:
- a first chassis portion with a first cutting arm mounted thereto;
- a second chassis portion with a second cutting arm mounted thereto, wherein each of the first and the second chassis portions is slidably coupled to the rail, and wherein the first and second chassis portions are coupled to each other at a pivot joint;
- and
- a trapping shoe that extends from the pivot joint, the trapping shoe being slidably coupled to the rail.
A longwall shearer mining machine that is mounted on a rail, the longwall shearer mining machine comprising:
- a first chassis portion with a first cutting arm mounted thereto;
- a second chassis portion with a second cutting arm mounted thereto, wherein each of the first and the second chassis portions is slidably coupled to the rail, and wherein the first and second chassis portions are coupled to each other by a rod;
- and
- a coupling member spaced apart from the rod, the coupling member being telescopically extendable between the first and second chassis portions.
Dependencies are inferred from the claim text.