| 摘要 |
The shredder has successive pairs of counter-rotating, intermeshing blades within a housing. The blades are mounted on pairs of shafts, one pair above the other. Preferably, there are three such pairs of shafts, so that the mat erial undergoes three stages of shredding. The shafts preferably are driven by two motors arranged at opposite sides of the housing, one driving four of the sh afts, and the other driving two of the shafts, via pulleys which are routed to pro vide the desired counter-rotation. In each pair of shafts, one shaft rotates at a dif ferent speed from the other shaft. The housing comprises frames located one above t he other, with one pair of shafts arranged in each frame.
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