Fluted disc structure of crusher

The utility model relates to a fluted disc structure of a crusher, which comprises a round disc body, mounting holes, a positioning hole and crushing teeth, wherein the mounting holes, the positioning hole are formed in the center of the disc body. The fluted disc structure is characterized in that the crushing teeth adopt demountable mounting structure, i.e. the mounting holes are uniformly distributed on one end surface of the round disc body and the crushing teeth are inserted into the mounting holes; on the other end surface of the round disc body, the crushing teeth are fastened with the round disc body through fastening pieces; and the crushing teeth are uniformly distributed on the outer circumferential edge of the round disc body, and are fastened with the round disc body through the fastening pieces. By adopting the structure of the utility model, if one or more crushing teeth are damaged during use, the damaged crushing tooth/teeth can be independently replaced and the original disc body is not changed, thereby saving raw material and reducing use cost. Additionally, the utility model has the advantages of simple structure, easy manufacture, convenient installation and dismantling, etc.