Automobile swing arm assembly of independent suspension

Abstract

The invention relates to an automobile swing arm assembly of an independent suspension. The automobile swing arm assembly comprises a swing arm body, a ball pin and two bushings, wherein the ball pin and the swing arm body are fixedly connected through a bolt; the two bushings are in crimping fit with the swing arm body; a ball pin mounting clearance is formed in the swing arm body; a front swing arm and a rear swing arm are arranged at opposite positions of the swing arm body and the ball pin mounting clearance; the cross section of the front swing arm is I-shaped; S-shaped reinforcing ribs are arranged in the front swing arm; the cross section of the rear swing arm takes the shape of a groove; and the strength of the rear swing arm is greatly improved. According to the automobile swing arm assembly provided by the invention, an upper shoulder and a lower shoulder are additionally arranged in the front and rear of the ball pin respectively, and thus vertical force acted on the bolt and moment of the vertical force are transferred to the ball pin and the swing arm body; the rail end of a polished rod of the bolt penetrates into the ball pin mounting clearance which is formed in the front of the swing arm body, and thus stress on a polished rod and thread transition position of the bolt is reduced; and the functions of mounting a spiral spring, the ball pin, the front bushing, the rear bushing and a stabilizer bar connecting rod are integrated on one swing arm body, so that the structure is greatly simplified and the weight of the automobile swing arm assembly is reduced.

Description

technical field [0001] The invention belongs to the technical field of automobile suspension, in particular to an automobile independent suspension swing arm assembly. Background technique [0002] The car swing arm assembly is located between the car body and the wheels. It is the main guide rod of the suspension, which bears the longitudinal and lateral forces during starting, braking and turning, and can also act as a thrust rod, which determines the performance of the whole vehicle. one of the main components. Independent suspensions such as MacPherson independent suspension and double wishbone independent suspension have swing arms. [0003] The main body of the swing arm of the suspension is generally connected to the steering knuckle on the wheel side through a ball pin on the outside, and connected to the body or subframe on the inside through a bush. Generally, the swing arm assembly is composed of a ball pin, a swing arm body and a bush. [0004] Stamping parts a...

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a swing arm assembly for independent suspension of automobiles to solve the problem of poor strength of the swing arm body and high production cost

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