Constant-speed rotating device for ultrasonic detection of steel cylinder

The utility model discloses a constant-speed rotating device for ultrasonic detection of a steel cylinder, and relates to the technical field of steel cylinders, the constant-speed rotating device comprises a base, the outer wall of the top of the base is fixedly connected with two supporting frames, the outer wall of one side of each supporting frame is provided with a round opening, the inner walls of the two round openings are provided with the same steel cylinder, and one end of the steel cylinder is provided with a ridge groove; prisms are inserted into the inner walls of the edge grooves, gears are fixedly connected to one ends of the prisms, cavities are formed in the prisms, and two rectangular openings are formed in the outer walls of the prisms. The prism is arranged on the gear, the prism is matched with the edge groove in the steel cylinder, the gear can be conveniently and rapidly installed on the steel cylinder, the two adjustable limiting blocks are arranged on the prism, the prism is convenien