Pulverizer's reducing mechanism and use pulverizer of this reducing mechanism

The utility model relates to a pulverizer and reducing mechanism, this reducing mechanism includes the casing, vertically in the casing be provided with first transmission shaft, a bottom end of transmission shaft connects driving motor and rotary toothed disc is connected on the top, rotary toothed disc is last to wear to be equipped with a plurality of crushing teeth, each crushing tooth is including crushing section and the locking section of below being located the rotary toothed disc top, each locking section is through locking mechanism and rotary toothed disc fixed connection, each locking mechanism includes nut and bolt, each nut spiro union is gone up just the level and has been seted up first pinhole in corresponding the locking section, set up second pinhole and second pinhole in each locking section and correspond first pinhole on the nut just to switching on, each bolt passes and corresponds first pinhole and insert in corresponding the second pinhole, the vertical secondary drive axle that is pr