Rubber-tired electric hoist portal crane

The utility model discloses a rubber-tired electric hoist portal crane. The rubber-tired electric hoist portal crane comprises a cross beam, wherein brackets are respectively arranged on the left end and the right end of the cross beam; roller devices are arranged at the bottoms of the brackets; each roller device comprises a rubber-tired wheel and a wheel support; the wheel supports are arranged at the bottoms of the brackets; the rubber-tired wheels are mounted on the wheel supports; guide wheel supports are arranged on the wheel supports; the guide wheel supports at two ends of the cross beam simultaneously extend inwards or outwards respectively; guide wheels are arranged at the tail ends of the guide wheel supports; limiting steps in fit with the guide wheels are arranged on the ground on one sides of the guide wheels. The electric hoist portal crane is relatively strong in environmental adaptability, small in operation noise and convenient to mount.