Cutting device for a mining machine

Details Cutting device for a mining machine Cutting device for a mining machine

E - Fixed Constructions

21

C

E21C 35/18 (2006.01)

Patent

CA 2761529

The invention relates to a cutting device for a mining machine, in particular a shearer. Said machine comprises 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) that consists of a diamond composite material, or a harder material, and is fixed in a receiving bore (6) of said body. The cutting tool is oriented on the tool carrier at an incident cutting angle (ß) of 45 - 58°, preferably 47 - 54° and especially preferably 49°. The tip (2) of the cutting insert (1) is substantially conical and the nose angle (a) is 60 - 75°.

Dispositif de coupe pour une machine d'extraction minière, en particulier pour une haveuse, comportant un porte-outil monté rotatif autour d'un axe de rotation, en particulier un tambour de haveuse, et au moins un outil de coupe (1) fixé sur le porte-outil. L'outil de coupe (1) comporte un corps de base (3) et un insert de coupe (1) fixé dans un trou récepteur (6) du corps de base et constitué d'un matériau composite à base de diamant ou d'un matériau plus dur. L'outil de coupe est orienté sur le porte-outil à un angle de réglage de coupe (ß) de 45 58°, de préférence de 47 - 54°, et idéalement de 49°. La pointe (2) de l'insert de coupe (1) possède une forme sensiblement conique, l'angle de pointe (a) étant de 60 75°.

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