Truck longitudinal beam assembly

Abstract

The invention discloses a truck longitudinal beam assembly which comprises a U-groove-shaped longitudinal beam. The opening upper end of the longitudinal beam is turned in the opposite direction to form a first turned edge. The longitudinal beam comprises a front linear section, a front inclined section, a rear inclined section and a rear linear section from front to back. The rear portion of the rear linear section warps up. The groove bottoms of the front portion of the rear linear section, the rear inclined section, the front inclined section and the front linear section are located on the same horizontal plane. A front reinforcing piece is fixed to the front end of the front linear section and is composed of a U-shaped bent plate body. The opening of the front reinforcing piece is downward fixedly connected to the upper portion of the front end of the front linear section. A U-groove-shaped inner reinforcing piece with an upward opening is fixed into grooves of the front inclined section and the rear inclined section. The rear end of the inner reinforcing piece extends to the smoothly connected part of the rear inclined section and the rear linear section. The assembly of the structure is simple in structure, high elasticity and good in energy absorption effect and has the advantages of being ingenious in concept, simple in structure, easy to transform, low in transformation cost and the like.

Description

technical field [0001] The invention belongs to the technical field of trucks, and in particular relates to a longitudinal beam assembly of a truck. Background technique [0002] At present, the longitudinal beam of the truck is formed by an open upward "U" shaped groove, and the upper side of the "U" shaped groove is turned outwards to form a flange. The front end of the existing longitudinal beam is upturned. When a collision occurs, energy cannot be efficiently transmitted from the front to the rear, and the energy absorption effect is not good, which is not conducive to the improvement of the vehicle's passive safety performance in collision. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a truck longitudinal beam assembly with good energy absorption effect. [0004] The technical solution of the present invention is as follows: a truck longitudinal beam assembly, comprising a "U"-shaped groove-shaped longi...

AI Technical Summary

Problems solved by technology

The front end of the existing longitudinal beam is upturned. When a collision occurs, energy cannot be efficiently transmitted from the front to the rear, and the energy absorption effect is not good, which is not conducive to the improvement of the passive safety performance of the vehicle collision.

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