Rotor collector ring protection device

The utility model discloses a rotor collecting ring protection device, which solves the problem that a collecting ring is greatly influenced by impurities, and has the technical scheme that the rotorcollecting ring protection device comprises a collecting ring main body, a shell is arranged outside the main body, an electric brush is arranged outside the main body, a fixing frame is arranged at the tail part of the electric brush, and a fixing rod penetrates through the tail part of the electric brush; the tail portion of the fixing frame is connected with the inner wall of the shell, a cleaning device is arranged beside an electric brush outside the collecting ring, a fixing groove is formed in the cleaning device, a scraping base is arranged in the fixing groove, a scraping blade is arranged on the scraping base, a spring is arranged between the scraping blade and the fixing groove, and the scraping base is provided with a scraping blade. Fan blades evenly distributed in the circumferential direction are ar