Unmanned steering mechanism

The utility model relates to the technical field of robot chassis, in particular to an unmanned steering mechanism which comprises a frame body, a swing arm, a front axle and an EPS device. The first end of the swing arm is hinged to the frame body; the front axle is fixedly connected to the second end of the swing arm, a rotating part capable of being provided with robot wheels is arranged on the front axle, and the rotating part can rotate on the front axle; the EPS device is fixedly connected to the front axle, and the EPS device is in driving connection with the rotating part so as to drive the rotating part to rotate left and right. When the frame body is vibrated under the action of external force, the frame body can swing up and down relative to the first end of the swing arm, meanwhile, the EPS device is mounted on the front axle at the second end of the swing arm, so that the EPS device cannot move up and down along with the up-down swing of the frame body, and the frame body, the front axle and the