| 摘要 |
Abstract The subject of the present invention is a reliable and simple-to-maintain design for the drive of a conveyor belt system, especially a long belt system with overcoming of great heights. The 5 conveyor belt system according to the present invention has at least one drive at the head drum or head drums. Moreover, a plurality of driven upper belt middle rollers are provided, whereby at least one non-driven relieving roller is arranged in direct vicinity of each of the driven upper belt middle rollers. Furthermore, means are provided for bringing the driven upper belt middle rollers into a position spaced at a distance from the belt. As a result, the driven upper belt middle rollers 0 can be removed from the belt for maintenance operations or replacement. It is thus advantageously not necessary to stop the conveyor belt system in case of a defect of a driven upper belt middle roller to repair or replace same. The non-driven relieving roller advantageously assumes the support function of the driven upper belt middle roller, when this is located in the position spaced at a distance from the belt. In any case, a defective driven upper belt middle .5 roller can thus be taken out of operation in order to then repair or replace same at the next scheduled stop of the conveyor belt system. The driving power of the entire conveyor belt system is dimensioned here, such that the failure of one or more driven upper belt middle rollers can be compensated without problems. 20 Figure 2 Nt (4 ''N m (P |
