Steering flaw detecting vehicle of side frame

The utility model relates to a steering flaw detecting vehicle of a side frame, belonging to the technical field of railway wagon production line tools. Particularly, the utility model relates to a steering flaw detecting vehicle of a side frame of a railway vehicle steering frame. The steering flaw detecting vehicle of the side frame provided by the utility model is free from hoisting of a crown block and is capable of rotating, turning and lifting the side frame. The steering flaw detecting vehicle of the side frame provided by the utility model comprises a machine frame with a travelling mechanism and is structurally characterized in that clamping mechanisms with turnover mechanisms are arranged at two sides of the machine frame; a rotary mechanism is arranged above the machine frame; a lifting mechanism is arranged on the rotary mechanism; and a grabbing mechanism is arranged at the lower end of the lifting mechanism.