Lightning protection testing device for wind driven generator

The utility model relates to a thunder and lightning protection testing device for a wind driven generator, which comprises a lifting device, a base arranged on the lifting device and an annular track assembly used for thunder and lightning protection testing. The lifting device comprises a bottom support, a hollow column fixed to the bottom support and a movable column arranged in the hollow column, a strip-shaped opening is formed in the side face of the hollow column, a protruding plate is fixed to the movable column and arranged in the strip-shaped opening, and teeth are arranged on the outer side of the protruding plate; a hoop is fixed outside the hollow column and connected with an annular gear, one end of the annular gear is connected with a crank through a bearing, and the annular gear is connected with the teeth in a meshed mode. During use, the annular track assembly is used for lightning protection testing, when the annular track assembly needs to be maintained, the crank is rotated, the crank dri