Speed reducer for medium hard tooth face double-arc gear coal mill

The utility model relates to a speed reducer for a medium hard tooth face double circular arc tooth-shaped coal mill. The utility model is composed of a machine cover, a machine body, a shaft wheel, a thick shaft, a big shaft bearing, a tooth ring, a wheel core, etc., wherein, the wheel core and the tooth ring are installed on the big shaft bearing which is installed on the thick shaft, the tooth ring is fixed on the wheel core by pins, and the integration is arranged on the machine body; a small shaft bearing is installed on the shaft wheel, and the integration is arranged on the machine body so that the teeth of the shaft wheel are engaged with the tooth ring, and the machine cover is arranged on the machine body. The utility model has the advantages of novel design, reliable performance, contact intensity enhancing, anti-bending strength enhancing, stable transmission, and less noise.