Drive-by-wire chassis steering mechanism

The utility model provides a drive-by-wire chassis steering mechanism which comprises the following structures: a top frame, the bottom of which is fixedly provided with a butt joint ring; a gear ring is fixedly arranged at the top of the bottom plate, an electric push rod is fixedly arranged on the left side of the bottom plate, a mounting support is fixedly arranged at the bottom of the electric push rod, a guide rod is assembled on the mounting support, when wheels make contact with the bottom face, the electric push rod works to jack up the bottom plate and the top frame, and the guide rod provides guiding assistance for the bottom plate and the top frame. The electric push rod reduces the distance between the mounting frame and the bottom plate to change the working distance between the mounting frame and the bottom plate, the working height of the truss assembled on the top frame is completed, and the problem that the structure of an existing steer-by-wire mechanism cannot change the working height of a