Disc sieve suitable for bamboo chip screening

The utility model discloses a disc sieve suitable for bamboo chip screening, which comprises a machine frame, bearing seats arranged on two sides of the machine frame, and a sieve roller arranged between the bearing seats, supporting platforms are respectively welded on the outer sides of the side walls of the machine frame, the bearing seats are fixedly arranged on the supporting platforms, a gap of 100mm exists between the bearing seats and the machine frame, and the sieve roller is arranged between the bearing seats and the machine frame. And a metal sealing ring is arranged between the bearing seat and the rack. The bearing seat and the rack are independent by arranging the supporting platform, and the preset gap is formed between the bearing seat and the bearing seat, so that the situation that a large amount of water and bamboo scraps enter the bearing to accelerate abrasion and corrosion of the bearing due to the fact that a bamboo stick breaks down the seal between the screen roller shaft and the bear