Rubber grating plate of ball mill

The utility model belongs to the technical field of ball mill mechanical equipment accessories, and relates to a ball mill rubber grating plate which comprises a plurality of single bodies arranged along the circumference of a hollow shaft, each single body comprises a fan-shaped body, and a plurality of grate hole channels used for discharging are evenly formed in each fan-shaped body. The opening of each grate hole channel is round or oval, an inclination angle of 5-90 degrees is formed between the center line of each grate hole channel and the working face of the body, the inclination angles of the grate hole channels all face one side of the central axis of the hollow shaft, and each grate hole channel comprises an inlet end and an outlet end. The cross section of the grate hole channel is a quadrangle with the gradually-changed size, the inlet end is large, and the outlet end is small. Compared with the prior art, the lining plate has the advantages that pulp discharging is smoother, and the service life