LIFT WITH SEVERAL DRIVE BELT DRUMS WITHOUT COUNTERWEIGHT AND WITH LOW ARRANGEMENT OF DRIVE Russian patent published in 2001 - IPC

FIELD: lifting and transportation machinery; lift drives. SUBSTANCE: lift has cabin moving along guides, two runs of flexible traction members suspending the cabin, four suspending blocks secured on cabin roof, number of deflecting blocks distributing traction members along lift well, drive located in lower part of well and containing reduction gear, electric motor and clutch. Four belts are used as flexible traction members, two belts per run. Ends of belts are secured on four drive drums of reduction gear. Reduction gear has system of gears providing rotation of four drive drums in groups of two in opposite directions, and worm pair which provides movement of cabin without counterweight at balanced worm wheel of reduction gear when lifting belts are rigidly secured on each drum. EFFECT: reduced load on traction members. 2 cl, 4 dwg