Support arm assembly, vehicle suspension system and vehicle using the suspension system

Abstract

The invention relates to a corbel assembly, a vehicle suspension system and a vehicle with the vehicle suspension system. The corbel assembly comprises a left corbel and a right corbel, wherein the middle of the left corbel and the middle of the right corbel are used for being fixedly connected with the two ends of an integrated axle respectively. The portion between the front ends of the left corbel and the right corbel and / or the portion between the rear ends of the left corbel and the right corbel are provided with connecting beams / a connecting beam. The two ends of each connecting beam are fixedly connected with or hinged to the left corbel and the right corbel respectively. Stability among the left corbel, the right corbel and the integrated axle can be enhanced through the connecting beams, the distance between the front ends of the left corbel and the right corbel and the distance between the rear ends of the left corbel and the right corbel are prevented from being changed, and irregular movement of the axle is avoided; the stressed state of a connecting piece between the integrated axle and the left corbel and a connecting piece between the integrated axle and the right corbel can be improved, connecting reliability of the corbels and the integrated axle is improved, meanwhile, distribution of bending moment borne by the corbels is improved, the mass of the corbels can be reduced, material cost can be saved, the unsprung mass of the vehicle is reduced, and driving smoothness is improved.

Description

technical field [0001] The invention relates to a support arm assembly, a vehicle suspension system and a vehicle using the suspension system. Background technique [0002] The suspension system is a guide and force transmission device used to connect the frame and the axle. It is generally composed of elastic components, guide devices, shock absorbers and stabilizer bars. It can pass the force and moment of the road surface on the wheels through the axle. It is transmitted to the frame, and the traction force and braking force of the engine are transmitted to the wheels through the axle, and the vibration of the frame and the body is attenuated through elastic elements and damping elements. According to different structures, the suspension system can be divided into non-independent suspension and independent suspension. The non-independent suspension is connected by an integral axle. The elastic components mostly use leaf springs, coil springs and air springs; while the in...

AI Technical Summary

Problems solved by technology

When the suspension of the above type in the prior art is used, because the support arm is in a compound motion state of bending and twisting, the distance between the front end and the rear end of the left and right support arms is likely to change under the action of stress, causing irregularities in the axle. movement, resulting in problems such as tire eccentric wear; and the torsional movement of the left and right brackets will affect the stress state of the U-shaped bolts, reducing the reliability of the connection between the brackets and the axle, posing a greater safety hazard

In addition, the integral axle is generally in the shape of a shell. During the use of the existing suspension system, as the force state between the U-shaped bolt and the axle changes, the axle shell is often damaged by the U-shaped bolt. Short service life and insufficient safety

However, in order to improve the reliability of the suspension system, the prior art adopts the design method of increasing the mass of the bracket arm, which increases the unsprung mass of the vehicle, which will affect the ratio of the sprung mass to the unsprung mass. It will be subject to a greater impact from the road surface, which will damage the ride comfort of the vehicle and increase the cost of components

In addition, the shock absorber in the prior art is installed outside the airbag assembly, and the anti-roll performance is poor.

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