| 摘要 |
FIELD: transport.SUBSTANCE: proposed intermediate drive comprises endless drive belt arranged above load-carrying belt in contact therewith and running on rollers over driven and tensioning drums, driven drum motor and drive control unit. Besides, it incorporates the load-carrying and driven belt speed transducers arranged at or ahead of the contact points, At acceleration and run of load-carrying belt at driven belt constant speed Vat contact with load-carrying belt is varied in the range V< V? V+?, where Vis load-carrying belt speed at contact with drive belt or before this contact, ? is admissible driven belt slippage relative to load-carrying belt. At deceleration of load-carrying belt, speed of driven belt at contact with the latter varies as V-? ? V+V.EFFECT: higher operating efficiency.4 cl, 4 dwg |
