High-speed light bridge erecting vehicle for emergency rescue and bridge erecting and collecting method thereof

The invention discloses a high-speed light bridge erecting vehicle for emergency rescue. The vehicle comprises a cab assembly 100, a chassis assembly 200 and a bridge girder erection device 300, wherein the chassis assembly 200 adopts a four-wheel-driven high-speed high-bearing-capacity axle and is provided with an air suspension system; the bridge erection device 300 comprises a bridge erection mechanism and a bridge, the bridge erection mechanism is installed at the tail of the chassis assembly 200, the bridge is placed on the chassis assembly 200 in a folded mode, and the cab assembly 100 is installed at the front end of the chassis assembly 200 and located in the middle of the front portion of the folded bridge. The invention adopts a special high-speed driving chassis assembly The engineering machinery chassis is adopted so that bearing capacity is high, and running speed is high. A rotating arm can be adjusted left and right around a frame. When a bridge is erected, the positionof the bridge can be adju