Method and apparatus for the milling cutting of materials

E - Fixed Constructions – 21 – C

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E21C 27/22 (2006.01)

Patent

CA 2661476

The invention relates to an apparatus for the milling cutting and/or drilling of materials, in particular for removing rock, minerals or coal, comprising a tool drum (104) which is mounted on a drum carrier (101) such that it can rotate about a drum axis H, in which tool drum a plurality of tool shafts (105) which carry milling cutting/drilling tools (116) at their ends are mounted such that they can be driven to rotate, wherein at least two of the tool shafts (105) can be driven by a common gear drive which comprises output gearwheels (107) which are arranged in a rotationally fixed manner on the tool shafts (105), and a common drive element (108) which interacts with the output gearwheels (107), wherein the drive element (108) and the tool drum (104) can be rotated relative to one another. Provision is made according to the invention for the axes W of the tool shafts (105) to lie transversely with respect to the drum axis H. In the apparatus (110) according to the invention, a very short, compact, pulse-like engagement of the individual milling cutting/drilling tools (116) in the rock to be extracted can be achieved.

L'invention concerne un dispositif pour l'usinage par fraisage et/ou perçage de matériaux, en particulier pour le prélèvement de pierres, minéraux ou charbon, comprenant un tambour à outils (104) logé de manière rotative sur un porte-tambour (101) autour d'un axe de tambour H (104), plusieurs broches d'outils (105), qui portent des outils d'usinage (116) à leurs extrémités, étant logées dans ce tambour à outils (104) de manière à pouvoir être entraînées en rotation. Au moins deux des broches d'outils (105) peuvent être entraînées par un entraînement à engrenages commun, présentant des roues dentées de sortie (107), disposées de manière bloquée en rotation sur les broches d'outils (105), et un élément d'entraînement commun (108), interagissant avec les roues dentées de sortie (107), l'élément d'entraînement (108) et le tambour à outils (104) pouvant être pivotés l'un par rapport à l'autre. Selon l'invention, les axes de broche W des broches d'outils (105) sont disposés de manière transversale à l'axe de tambour H. Le dispositif (110) selon l'invention permet d'obtenir un engagement très court, compact, à impulsions des outils d'usinage individuels (116) dans la pierre à exploiter.

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