Service trolley

It is installed on the bridge portal of the electric circular overhead travelling crane in the reactor compartment of NPP. It is intended for carrying out repair works of the cargo trolley. It consists of: frame, lifting mechanism with suspension and rope, travelling mechanism, fence. The frame consists of two rolling beams, supported on the running wheels and longitudinal beams of box section, as well as two block beams, forming a rigid structure with the bogie deck. The travelling mechanism consists of four single-ribbed running wheels, two of which are driven. The lifting mechanism consists of an electric motor connected to the gearbox by a bush-finger clutch, two brakes, a drum, a load suspension and a balancer