Sprayer and dish washing machine

The invention provides a spray thrower and a dish washing machine. The spray thrower comprises a spray seat and a spray head, the power spraying arm is rotatably mounted on the spraying seat; the cleaning spraying arm is rotatably mounted on the power spraying arm; the planetary gear carrier shaft penetrates up and down and is mounted in the mounting hole of the power spraying arm in a manner of rotating around the shaft; and an anti-friction ring is sleeved outside the planetary gear carrier shaft. The anti-friction ring is additionally arranged between the planetary gear carrier shaft and the power spraying arm, so that the planetary gear carrier shaft only makes contact with the smooth inner wall of the anti-friction ring when rotating around the shaft, and then the friction force generated when the planetary gear carrier shaft rotates around the shaft is reduced; meanwhile, due to the additional arrangement of the anti-friction ring, the anti-friction ring cannot rotate along with the planetary gear carri