Cutter head for mining machine
AssigneeJoy MM Delaware, Inc.
InventorsRussell P. Smith, Andrew D. Hunter, Peter A. Lugg, Ian B. Schirmer, Geoffrey W. Keech, Christopher Coates, Bradley M. Neilson
Life of this patent
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Abstract
A cutter head includes a first member, a cutting bit, and a second member. The first member includes a first end and a second end and includes a first mass. The cutting bit is coupled to the first member proximate the second end. The cutting bit includes a cutting edge rotatable about the axis. The second member is rotatable about the axis and includes a second mass eccentrically positioned with respect to the axis. Rotation of the second mass causes the first member and the cutting bit to oscillate.
Claims35
A cutter head for a mining machine, mining machine including a frame and a boom movably coupled to the frame, the cutter head comprising:
- a first member including a first end and a second end, the first member including a first mass;
- a cutting bit coupled to the first member proximate the second end, the cutting bit including a cutting edge;
- and
- a second member rotatable about an axis and including a second mass eccentrically positioned with respect to the axis, the second mass and the first mass at least partially defining a combined center of mass, rotation of the second mass causing the first member and the cutting bit to oscillate about the combined center of mass,
- wherein the second member includes a shaft coupled to the second mass for rotation about the axis, the shaft including a first fluid conduit extending through the shaft, and wherein the cutting bit further includes a second fluid conduit in fluid communication with the first fluid conduit, the second fluid conduit extending radially through the cutting bit.
A cutter head for a mining machine, mining machine including a frame and a boom movably coupled to the frame, the cutter head comprising:
- a first member including a first end and a second end, the first member including a first mass;
- a cutting bit coupled to the first member proximate the second end, the cutting bit including a cutting edge;
- and
- a second member rotatable about an axis and including a second mass eccentrically positioned with respect to the axis, the second mass and the first mass at least partially defining a combined center of mass, rotation of the second mass causing the first member and the cutting bit to oscillate about the combined center of mass,
- a coupling mechanism for supporting the first member relative to boom, the coupling mechanism including a plurality of fluid cylinders, each fluid cylinder including a first end coupled to the first member and a second end, the plurality of fluid cylinders reacting to forces exerted on the cutting bit and first member and isolating the boom against the transmission of the forces.
Dependencies are inferred from the claim text.