Cutting head having segmented cutting disc
AssigneeJoy Global Underground Mining LLC
InventorsJoaquim Antonio Soares de Sousa, Michael Laing
Life of this patent
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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.
Claims17
A method of servicing a cutting device for a mining machine, the cutting device including a plurality of cutting portions supported on a disc body, each cutting portion including a plurality of cutting bits positioned along a peripheral edge, the method comprising:
- uncoupling one of the cutting portions from the disc body and removing the one cutting portion from a position between adjacent cutting portions;
- aligning a peripheral edge of a replacement cutting portion with peripheral edges of the adjacent cutting portions;
- and
- securing the replacement cutting portion to the disc body in the position previously occupied by the one cutting portion, the replacement cutting portion engaging a planar surface of the disc body that is oriented at an oblique angle with respect to an axis of rotation of the disc body.
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, each of the peripheral portions coupled to an associated one of the peripheral surfaces independent of the other peripheral portions, 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 method of servicing a cutting device for a mining machine, the cutting device including a plurality of cutting portions supported on a disc body, each cutting portion including a plurality of cutting bits positioned along a peripheral edge, the method comprising:
- uncoupling one of the cutting portions from the disc body;
- and
- securing a replacement cutting portion to the disc body in a position previously occupied by the one cutting portion, the replacement cutting portion engaging a planar surface of the disc body that is oriented at an oblique angle with respect to an axis of rotation of the disc body.
Dependencies are inferred from the claim text.