Roadway frame shed top beam lifting device

The utility model relates to a roadway rack shed top beam lifting device which comprises a rack shed installation scaffold and is provided with a main rack beam 10, a lifting oil cylinder 20, a lifting lever 30, a supporting rod 40, a lifting shaft 50 and a bracket 60, the main rack beam 10 is supported by the rack shed installation scaffold 70, the lifting oil cylinder 20 is installed on the main rack beam, and the lifting lever 30 is installed on the bracket 60. The lifting oil cylinder 20 pushes the lifting shaft 50 to move in a lifting mode through the lifting lever 30, the bracket 60 is arranged at the top end of the lifting shaft 50, and the bracket supports the shed erecting top beam 80. The utility model has the beneficial effects that the roof beam of the roadway support shed is installed by adopting mechanical lifting operation, so that the operation of manual beam lifting installation is avoided, and the working safety is improved. The device is simple in structure, easy to assemble and disassemble