Eddy current protective cover device of spinning hub for mine fan impellor

The utility model discloses an eddy current protective cover device of a spinning hub for a mine fan impellor. The eddy current protective cover device of the spinning hub for the mine fan impellor can effectively eliminate air swirl at a spinning hub concave pit so as to improve the pneumatic efficiency of the mine fan effectively, and lower the pneumatic noise of the mine fan. The eddy current protective cover device of the spinning hub for the mine fan impellor is characterized by consisting of a seal connecting device, the concave pit, an arc windshield cover, plate spring clamp heads, inserted plate clamp ports, a screwing device, a shaft sleeve and the spinning hub, wherein the spinning hub is connected with the shaft sleeve through the screwing device; the concave pit is arranged in the middle of the spinning hub; the inserted plate clamp ports are uniformly welded and fixed in the concave pit; the plate spring clamp heads are uniformly welded and fixedly arranged on the inner surface of the arc windsh