Cutting head having segmented cutting disc
AssigneeJoy Global Underground Mining LLC
InventorsJoaquim Antonio Soares de Sousa, Michael Laing
Life of this patent
Estimating the term…
Abstract
A cutting device for engaging a rock face includes a disc body supported for rotation about an axis of rotation, and a plurality of peripheral portions removably secured to the disc body. Each of the peripheral portions including a plurality of cutting bits positioned on a peripheral edge. The peripheral edge of each peripheral portion is aligned with the peripheral edges of adjacent peripheral portions.
Claims19
A cutting device for engaging a rock face, the cutting device comprising:
- a disc body supported for rotation about an axis of rotation, the disc body including a plurality of peripheral surfaces, each of the peripheral surfaces oriented in a plane at an oblique angle relative to the axis of rotation;
- and
- a plurality of peripheral portions removably secured to the disc body, each of the peripheral portions engaging an associated one of the peripheral surfaces, each of the peripheral portions including a plurality of cutting bits positioned on a peripheral edge, the peripheral edge of each peripheral portion aligned with the peripheral edges of adjacent peripheral portions.
A cutting head for engaging a rock wall, the cutting head comprising:
- a boom configured to be supported on a frame;
- a drive mechanism;
- and
- a cutting device supported on the boom and driven by the drive mechanism, the cutting device including,
- a disc body supported for rotation about an axis of rotation, the disc body including a plurality of peripheral surfaces, each of the peripheral surfaces oriented in a plane at an oblique angle relative to the axis of rotation, and
- a plurality of peripheral portions removably secured to the disc body, each of the peripheral portions engaging an associated one of the peripheral surfaces, each of the peripheral portions including a plurality of cutting bits positioned on a peripheral edge, the peripheral edge of each peripheral portion aligned with the peripheral edges of adjacent peripheral portions.
A cutting device for engaging a rock face, the cutting device comprising:
- a disc body supported for rotation about an axis of rotation, the disc body including a first surface and a second surface, the first surface oriented orthogonally with respect to the axis of rotation, the first surface positioned adjacent the axis of rotation, the second surface radially spaced apart from the axis of rotation;
- and
- a cutting member supported on the second surface of the disc body and radially spaced apart from the axis of rotation, the cutting member including a peripheral edge and a plurality of cutting bits positioned along the peripheral edge, the peripheral edge having a round shape, the cutting member formed as a plurality of cutting portions independently and removably secured to the disc body, each of the cutting portions supporting some of the cutting bits.
Dependencies are inferred from the claim text.