主权项 |
1. An apparatus, comprising:
a mobile frame having a plurality of wheels to engage a support surface and a hitch connectable to a truck for moving the apparatus; a loading conveyor coupled to the frame and having a first plurality of rolling elements for engaging a lower side of a road plate and for enabling movement of the road plate in a first direction; a cleaning station disposed adjacent to the loading conveyor and having a second plurality of rolling elements coupled to the frame for engaging the lower side of the road plate, for rollably receiving the road plate from the loading conveyor and for supporting the road plate within the cleaning station, the second plurality of rolling elements oriented for translation of the road plate in the first direction; a sandblasting nozzle oriented to direct a high velocity stream of abrasive particles onto an upper side of the road plate with the road plate in the cleaning station; a third plurality of rolling elements coupled to the frame and deployable from a retracted position, in which an uppermost portion of each of the third plurality of rolling elements is below an uppermost portion of the second plurality of rolling elements, to a deployed position, in which the uppermost portion of each of the third plurality of rolling elements is above the uppermost portion of the second plurality of rolling elements, the third plurality of rolling elements oriented for translation of the road plate in a second direction perpendicular to the first direction; an application station disposed adjacent to the cleaning station and having a fourth plurality of rolling elements coupled to the frame for engaging the lower side of the road plate, for rollably receiving the road plate from the cleaning station and for supporting the road plate within the application station, the fourth plurality of rolling elements oriented for translation of the road plate in the second direction; a wire arc spray head oriented to direct a spray of molten material onto the upper side of the road plate, the wire arc spray head including two consumable electrodes, each comprising a conductive wire fed independently into the spray head, and a gas nozzle oriented to blow a stream of gas towards a zone of contact between the two consumable wires to spray a large plurality of molten metal droplets onto the upper side of the road plate; a fifth plurality of rolling elements coupled to the frame and deployable from a retracted position, in which an uppermost portion of each of the fifth plurality of rolling elements is below an uppermost portion of the fourth plurality of rolling elements, to a deployed position, in which the uppermost portion of each of the fifth plurality of rolling elements is above the uppermost portion of the fourth plurality of rolling elements, the fifth plurality of rolling elements oriented for translation of the road plate in a third direction perpendicular to the second direction; and an unloading conveyor coupled to the frame and having a sixth plurality of rolling elements for engaging the lower side of a road plate and for enabling movement of the road plate in the third direction for rollably receiving the road plate from the application station. |