Hoisting device for dry-type transformer coil

The utility model discloses a lifting device for a dry-type transformer coil, which comprises a lifting appliance and a telescopic expansion mechanism, and the lifting appliance comprises a lifting ring and a central shaft connected with the lifting ring; the telescopic expansion mechanism comprises a lifting set capable of moving up and down on the center shaft and a plurality of abutting assemblies arranged in a ring array mode, one end of each abutting assembly is rotatably connected with the lower end of the lifting set, the other end of each abutting assembly is rotatably connected with the lower end of the center shaft, and a triangular supporting structure is formed between the abutting assemblies and the center shaft. The abutting blocks at the outer ends of the triangular supporting structures move close to the center shaft and away from the center shaft. According to the hoisting device, the high-voltage coil of the dry-type transformer is tightly supported and loosened through the telescopic expans