Suspension bridge main cable erecting device

The utility model discloses a suspension bridge main cable erecting device which comprises a supporting frame, a carrier wheel supporting seat, a carrier wheel and a main cable rope arranged on the carrier wheel. The supporting frame comprises a supporting table provided with a limiting hole. The lower end face of the carrier wheel supporting seat is connected with a supporting rod with the lower end penetrating through the limiting hole. A spring is arranged between the carrier wheel supporting seat and the supporting table, wherein the supporting rod is sleeved with the spring. By the adoption of the structure, the suspension bridge main cable erecting device has the following advantages that through stretching and retraction of the spring, the carrier wheel supporting seat is driven to move vertically so that the main cable rope can be adapted to different heights; the phenomena that threads of the main cable rope are scattered and package winding belts are broken at the two sides of the top of a tower are