Cutting device for a mining machine
AssigneeSandvik Mining and Construction Oy
InventorsRalf Grief, Roman Gerber, Jan Akerman, Nikolaus Sifferlinger
Life of this patent
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Abstract
In a cutting device for a mining machine, in particular a shearer, including a tool carrier, in particular a shearer drum, that is rotatably mounted about a rotational axis and at least one cutting tool (1) that is fixed to the tool carrier, the cutting tool (1) comprises a tool base body (3) and a cutting insert (1) made of a diamond composite material or a harder material and fixed in a receiving bore (6) of the tool base body. The cutting tool is oriented on the tool carrier at an incident cutting angle (β) of 45-58°, preferably 47-54°, preferably 49°. The tip (2) of the cutting insert (1) is substantially conically designed, with the nose angle being 60-75°.
Claims12
A cutting device for a mining machine, in particular a shearer, including a tool carrier, in particular a shearer drum, that is rotatably mounted about a rotational axis and at least one cutting tool that is fixed to the tool carrier and comprises a tool base body and a cutting insert made of a diamond composite material or a harder material and fixed in a receiving bore of the tool base body, characterized in that the cutting tool is oriented on the tool carrier at an incident cutting angle (β) of 45-58° and the tip (2) of the cutting insert (1) is substantially conically designed, with the nose angle being 60-75°.
Dependencies are inferred from the claim text.