Transfer trolley system for fan-shaped structural member

The invention discloses a transfer trolley system for a fan-shaped structural part. The transfer trolley system comprises a loading tool, a hoist, an electric flat car and a balance weight. The loading tool is arranged on the electric flat car, the hoist is arranged on the loading tool, and the balance weight is arranged on the side, away from the loading tool, of the electric flat car. The electric flat car is provided with a bearing plate, the loading tool comprises a main body structure, the main body structure is located above the bearing plate, an opening is formed in the side, away from the balance weight, of the loading tool, and the opening is located outside the bearing plate of the electric flat car. The side, provided with the opening, of the loading tool is not provided with a cross beam. The transfer trolley system can realize indoor transfer, also can convey the fan-shaped structural member to a test section station, can meet the transfer of various types of fan-shaped structural members, and th