Automatic alignment control device for front and rear articulated mechanisms of double steel wheel road roller

An automatic alignment control device for front and rear articulated mechanisms of a double steel wheel road roller comprises a conversion control switch, a proximity switch, a normally-closed relay, and a crab walk electromagnetic valve; the proximity switch is mounted at a hinge joint of a rear hinge joint rack and a front hinge joint rack on the rear hinge joint rack, and can induct the position of a projected point on the front hinge joint rack when the center lines of the rear hinge joint and the front hinge joint are aligned; the proximity switch connected through the conversion control switch is connected with the normally-closed relay to control the normally-closed relay; and the normally-closed relay is connected with the crab walk electromagnetic valve. When the crab walk operation is not required, the utility model can realize the automatic alignment of the front hinge joint and the rear hinge joint, the structure is simple and easy to realize, the work intensity of a driver can be reduced, the tim