The utility model discloses a rotary vane for a
centrifugal pump, and relates to the technical field of centrifugal pumps. Comprising a second rotating shaft sleeve, and four fan-shaped rotating sheets are uniformly arranged on the
peripheral wall of the lower section of the second rotating shaft sleeve at the same horizontal height. The rotary pieces are in the same screwing direction and angle in different view directions, and the edge of the other side, away from the rotary shaft sleeve, of each rotary piece is in an inclined long strip shape. The thickness of each rotary vane is 1.5 mm, a gap of 3 mm is formed between every two adjacent rotary vanes, a transition fillet with the
radius of 1.5 mm is arranged at the joint, the outer
diameter of the second rotary shaft sleeve is 22 mm, and the inner
diameter of the second rotary shaft sleeve is 19 mm According to the design of the rotary vane, when fluid makes contact with the water inlet plane of the pump body, the fluid can be quickly sucked into the pump body, the guide effect is achieved, therefore, it is ensured that a sealing piece does not
lack water, the fault that the sealing piece is damaged due to dry rotation is reduced, meanwhile, when some aluminum scraps easily block a water hole, water outlet action is avoided through work of the pump, and the rotary vane can spray the fluid outwards; therefore, the frequency of
slag cleaning is reduced, the production efficiency is improved, the reliability of the
centrifugal pump is improved, and the service life of the
centrifugal pump is prolonged.