Front connecting structure of vehicle frame

Abstract

The invention discloses a front connecting structure of a vehicle frame. The front connecting structure comprises a cross beam (1) and a longitudinal beam (2) connected with the cross beam (1), a reinforcing plate (3) is arranged on a connecting part between the cross beam (1) and the longitudinal beam (2), one side of the reinforcing plate (3) is connected with the cross beam (1), and the other side of the reinforcing plate (3) is connected with the longitudinal beam (2); and the reinforcing plate (3) is provided with a groove (10) used for absorbing energy during collision. By additionally arranging the reinforcing plate on the connecting part between the cross beam and the longitudinal beam, the torsional rigidity of the connecting part between the cross beam and the longitudinal beam can be effectively improved; by additionally arranging the energy-absorbing groove on the reinforcing plate, impact force generated during vehicle collision can be effectively scattered and decreased; and by means of energy-absorbing holes and energy-absorbing grooves on a front plate and a rear plate of the cross beam as well as an outer plate and an inner plate of the longitudinal beam, energy generated during collision can be fully absorbed. The front connecting structure disclosed by the invention has good torsional fatigue resistance and less complex molding process, and is easy to assemble and apply in a real vehicle; and the energy absorbing function of the front side structure is fully considered.

Description

technical field [0001] The invention relates to a front connection structure of a vehicle frame, in particular to a connection structure of a crossbeam and a longitudinal beam of an SUV vehicle frame. Background technique [0002] The frame is generally used in larger passenger cars. The connection between the frame and the body of an SUV is basically a suspension connection. Most of the sprung load is borne by the frame. The frame is the main load connecting the body and the suspension. pieces. Under normal circumstances, passenger cars with frames will withstand more complex road conditions, such as off-road roads, twisted roads, etc. Under these road conditions, the frame often suffers from torsional fatigue damage, so the connection stiffness of the beam and the longitudinal beam and higher strength requirements. But at the same time, the frame also plays a very important role in the crash performance of SUVs. In frontal or offset collisions, the front of the frame ne...

AI Technical Summary

Problems solved by technology

In frontal or offset collisions, the front of the frame needs to have a certain energy-absorbing capacity to reduce the acceleration of the body during the collision, thereby reducing the damage to the occupants. At this time, the frame needs to be able to easily Deformation occurs, and special structures with energy-absorbing functions need to be designed at the same time, and the design of these structures will greatly reduce the connection stiffness and strength requirements of the frame

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