Automobile composite material plate spring assembly and assembly method of same

Abstract

The invention discloses an automobile composite material plate spring assembly and an assembly method of same. The automobile composite material plate spring assembly is characterized by comprising a composite material plate spring, a shock absorber bracket, an axle and a pressure plate, wherein the pressure plate is arranged on the upper surface of the middle of the composite material plate spring; the composite material plate spring is arranged on the shock absorber bracket; the shock absorber bracket is arranged on the axle; and two U-shaped bolts are used for wholly connection and fixation. The automobile composite material plate spring assembly and the assembly method of same realize light weight of a device, the assembly steps are simple and convenient, and meanwhile the composite material plate spring has the advantages of high specific strength, high specific elasticity, corrosion resistance, and designable material performance. Besides, the positioning and connection and fixation modes of the main parts of the automobile composite material plate spring assembly are smartly designed, the composite material plate spring and the parts nearby can be correctly fixed at corresponding locations of a chassis of an automobile body, and the damage to the composite material plate spring caused by center punching can be avoided.

Description

technical field [0001] The invention relates to an automobile leaf spring assembly and an assembly method thereof, in particular to an automobile leaf spring assembly made of composite materials and an assembly method thereof. Background technique [0002] At present, the global energy shortage, environmental pollution and other issues force people to try their best to realize the lightweight of vehicles to reduce fuel consumption and improve environmental protection. As a part of the automobile suspension system, the leaf spring accounts for about 1 / 15-1 / 10 of the weight of the car body. If glass fiber reinforced composite materials are used, the weight of the leaf spring can be reduced by 60%-70%. Composite materials have the advantages of high specific strength, large specific elastic energy, corrosion resistance, and designable material properties. These characteristics can not only meet the performance requirements of automobile leaf springs for materials, but also ach...

AI Technical Summary

Problems solved by technology

If the composite leaf spring is fixed in the same way as the leaf spring, there will be the following problems: First, the center punching will introduce microcracks between the layers of the composite leaf spring, making the composite leaf spring extremely prone to damage during use ;Secondly, center drilling will introduce stress concentration during the service process of the composite leaf spring, thus greatly reducing the service life of the composite leaf spring;

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