Flexible catch wheel device of large-scale mixer

The invention relates to a flexible catch wheel device of a large-scale mixer, comprising a catch wheel and a catch wheel seat. The flexible catch wheel device is characterized in that a sliding device is arranged between the catch wheel and the catch wheel seat; the lower part of the right side of the catch wheel is provided with a shaft ear which is provided with a shaft hole, and the shaft earis connected with a tension device by a hinge pin; the tension device comprises a pulling rod and a pulling rod seat arranged on the outer side of the catch wheel, wherein, the pulling rod seat is fixedly connected with ground and is sheathed with a disc spring cover; a disc spring is arranged in the disc spring cover; one end of the pulling rod is rotatablely connected with the shaft ear by the hinge pin, and the other end passes through the pulling rod seat and the disc spring to be fixed on the end socket of the disc spring cover via a screw and is connected with the pulling rod seat in a sliding mode. The inventio