Patent ID: 7631942

Claim:
A device for milling rock and other materials, the device comprising: a drum support ( 11 ); a spindle drum ( 13 ) rotatably mounted relative to the drum support ( 11 ) and rotatable about a drum axis ( 34 ), the spindle drum comprising: several tool spindles ( 22 ) mounted for rotation about spindle axes ( 68 ) which are eccentric from the drum axis, said tool spindles carrying respective machining tools ( 41 ) at their ends projecting from the spindle drum ( 13 ); and, a common transmission gear drive ( 24 , 25 ) for driving at least two of the tool spindles ( 22 ), the common transmission gear drive ( 24 , 25 ) comprising: driven gear wheels ( 24 ) drivingly connected to the tool spindles ( 22 ); and, a common drive element ( 25 ) drivingly engaged with the driven gear wheels ( 24 ), the common transmission gear drive ( 24 , 25 ) being arranged such that the drive element ( 25 ) and the spindle drum ( 13 ) are rotatable relative to one another.