Device for installing wind power generation fan and tower drum and construction method of device

The invention discloses a device for installing a wind power generation fan and a tower drum. The device comprises a load-bearing supporting frame, a reinforcing connecting cross beam is arranged at the top of the load-bearing supporting frame, and a jacking jack is arranged at the top of the load-bearing supporting frame; a sliding platform guide rail is arranged on the tower drum foundation, and a sliding platform is installed on the sliding platform guide rail. The construction method comprises the following steps: 1) foundation construction; 2) mounting and constructing a bearing support frame; (3) installing and constructing a cable anchor, a jacking jack and the like; (4) mounting a tower drum; (5) the carriage beam and the tower drum are jacked; and (6) a fan cabin and blades are installed. The method has the advantages that the problems that in a traditional construction and arrangement method, a tower drum is installed from top to bottom, and the hoisting machine cost and the hoisting difficulty are