Walking wheel cleaning device of high-speed railway track measuring instrument

The utility model discloses a travelling wheel cleaning device of a high-speed railway track measuring instrument, which comprises a U-shaped frame, a roll shaft, an auxiliary wheel, a travelling wheel, a large gear, a small gear, a connecting shaft, a support plate, a rotating rod, a rotating shaft and a cleaning device, the roll shaft is rotatably arranged on the inner wall of the U-shaped frame, the U-shaped frame is a hollow cavity with three open surfaces, and the auxiliary wheel is arranged in the hollow cavity. The two ends of the roller shaft penetrate through the side wall of the U-shaped frame and are arranged outside the U-shaped frame, the auxiliary wheel is arranged on one side of the roller shaft, the walking wheel is arranged on the side, away from the auxiliary wheel, of the roller shaft, the large gear is arranged at the end, close to the auxiliary wheel, of the roller shaft, the supporting plate is arranged on the upper wall of the U-shaped frame, and the connecting shaft is rotationally arr