| 摘要 |
The invention concerns a cutting shaft for a cutting machine having knife seat grooves distributed so as to be spirally wound on the periphery in the cutting shaft, whereby cutting tools are arranged in the knife seat groove which protrude with a cutting edge beyond the periphery of the cutting shaft and mesh with corresponding counter cutting means of the cutting machine, whereby, to change the cutting contour, cutting tools having at least the same cutting edge length and the same maximum protrusion beyond the cutting shaft, but slighter engagement depth, are arranged with counter cutting means in the shaft. The invention also concerns a cutting tool for a cutting shaft of a shredding machine, whereby knife seat recesses, wound spirally, are distributed on the periphery in the cutting shaft for the cutting tools and the cutting tools have a pointed cutting contour projection beyond the upper and peripheral surface of the cutting shaft, whereby, to extend the cutting edge, the cutting edges of the cutting tool are staggered, stepped or toothed.
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