Reducing structure of single-tire aluminum alloy framework vehicle girder

The utility model discloses a reducing structure of a single-tire aluminum alloy framework vehicle girder, which relates to the field of vehicle girders, and comprises two groups of integral longitudinal beams which are symmetrically arranged in parallel, the front part of each integral longitudinal beam is a longitudinal beam narrow part, the middle part of each integral longitudinal beam is a longitudinal beam wide part, the rear part of each integral longitudinal beam is a longitudinal beam main body, and a head beam is arranged at the front end of each longitudinal beam narrow part. A traction plate assembly is arranged between the head beam and the narrow portions of the two longitudinal beams, a plurality of reinforcing beams are arranged between the narrow portions of the two longitudinal beams and arranged between the traction plate assembly and the wide portions of the longitudinal beams, a front cross beam and a middle lock beam assembly are connected between the wide portions of the longitudinal be