| 摘要 |
A multipurpose roller contains a horizontal shaft, the ends of which are fixed in bearing units, on the shaft immovable wheels with the smooth or toothed surface and movable wheels with the toothed surface are arranged alternatively, moreover the immovable wheels are pressed to each other with their hubs, the width of which exceeds the width of a rim, and the movable wheels, the internal diameter of which exceeds the outer diameter of the hubs of the immovable wheels, and the outer diameter of the immovable wheels and the outer diameter of the movable wheels are the same, are freely arranged between them. According to the technological necessity, a case, which is made of at least two cylindrical segments fixed between each other, is put on the set of the immovable and the movable wheels arranged alternatively.
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