DRIVING VACUUM DRUM FOR THE BELT CONVEYER Russian patent published in 1994 - IPC

FIELD: mining industry. SUBSTANCE: through transverse notches disposed along the channel length with a definite step are made in the bottom of the ring turning located on the outer surface of the drum shell and crossing the longitudinal channels disposed on the same surface with the aim of enhancing the device reliability. Partitions whose lower face surface rests on the springs mounted in the glasses disposed under each of the through notches are flush-mounted with the shell surface in the transverse notches with the conjugation along the slipping setting. The cross-section of the ring turning in the place where the belt runs on the drum, is overlapped by a seal made of low-friction material fixed on the frame of the conveyer driving station. EFFECT: enhanced reliability of the drum exploitation. 2 dwg