| 摘要 |
<p>The invention concerns an impact mill having a rotor apparatus comprising two concentric rotors (30, 40) equipped with coaxial shafts (10, 20), said rotors comprising blade rings (31, 32,.... and 41, 42, respectively), said blade rings being located within each other, and wherein said shafts (10, 20) are arranged within each other on the same side of the rotors (30, 40). The invention is characterized in that into the inner shaft (10) or into the outer shaft (20) is made at least one channel (14, 51, 52 or 25), running in the shaft, for the oil needed for lubrication of the bearings (11, 12) of the inner shaft.</p> |
