| 摘要 |
The invention relates to a rotary drum of relatively large dimensions, the casing of which is mounted rotatably by ball races (3, 4) on in each case a roller pair (7) of a roller station (5, 6). To this end, the rotary drum casing (2) bears only two ball races (3, 4) which are mounted in a rotationally fixed manner and are mounted on two roller stations (5, 6), at least one of which simultaneously forms the rotary drive device for the rotary drum in the form of a friction-wheel drive. The result is thus a combination of features, by means of which the rotary drum is mounted in a statically determined manner and at the same time can be reliably driven in an extremely simple manner. |
