High-energy-absorption alloy anti-collision beam structure for automobile

Abstract

The invention relates to a high-energy-absorption alloy anti-collision beam structure for an automobile. The structure comprises a split main beam made of high-energy-absorption alloy, the main beam is fixed on a longitudinal beam of an automobile body through an energy absorption box on the back surface and a mounting plate, and the main beam is divided into a middle beam and two side beams on two sides. The middle beam and the side beams are connected in an inserted mode through T-shaped key grooves and fixed through flange plates located on the outer sides, the joints of the side beams andthe middle beam are arranged to be in triangular shapes with outward openings, and containing grooves for installing reinforcing ribs are formed in the upper surface, the lower surface and the outer side face of the main beam. The main beam made of the high-energy-absorption alloy has the main performance characteristics of high ductility and high energy absorption of the alloy, so that the the impact force is self-decomposed to a certain extent, and damage to a vehicle body is reduced; meanwhile, the split main beam composed of the middle beam and the side beams on the two sides can be used for protecting the middle beam by abandoning the side beams to deal with the small and medium-sized side impact, so that the maintenance cost is reduced.

Description

technical field [0001] The invention relates to the field of auto parts, in particular to a high-energy-absorbing alloy anti-collision beam structure for automobiles. Background technique [0002] High energy-absorbing alloy is a kind of alloy steel with outstanding strength, toughness and energy-absorbing properties. The main performance characteristics of energy alloys are high ductility and high energy absorption. Its main application fields are almost all shock / explosion protection occasions, and it has very broad application prospects in aerospace, weaponry, transportation and infrastructure. [0003] The anti-collision beam is a device used to reduce the absorption of collision energy when the vehicle is hit by a collision. It is composed of the main beam, the energy-absorbing box, and the mounting plate connected to the car. The energy box is then connected to the longitudinal beam of the vehicle body through bolts. Both the main beam and the energy-absorbing box can...

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Problems solved by technology

[0004] The existing main girder is designed in one piece. This design results in that when the side is hit or scratched at a low speed, it often only causes damage to the side of the main girder, but the entire main girder needs to be replaced, which increases the overall maintenance cost.

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