Combined car frame of car

Abstract

The invention discloses a combined car frame of a car. The combined car frame of the car comprises a car frame body front section, a car frame body middle section and a car frame body rear section, wherein the car frame body middle section is lower than the car frame body front section and the car frame body rear section. The car frame body front section comprises at least two car frame body frontsection longitudinal beams and at least two car frame body front section cross beams. The car frame body middle section comprises at least two car frame body middle section longitudinal beams and atleast two car frame body middle section cross beams. The car frame body rear section comprises at least two car frame body rear section longitudinal beams and at least one car frame body rear sectioncross beam. The car frame body front section, the car frame body middle section and the car frame body rear section are made of alloys. By transforming the structural design of the car frame and modifying material section of the car frame, the combined car frame has the advantages of simple structure, low mass, good car stability, good vibration reduction and absorption effects and high bearing capacity; and meanwhile the production cost is reduced, energy is saved, pollution is relieved, and broad development and application prospects are achieved.

Description

technical field [0001] The invention relates to the technical field of a non-load-bearing vehicle frame of an automobile, and more particularly to a combined vehicle frame of a car. Background technique [0002] At present, most car frames are made of special steel plates pressed on special molds. The general non-load-bearing body frame and the body are separated. The frame is often made into a whole, and the materials and shapes and dimensions used are the same. The stress situation of each part of the frame is different, resulting in a waste of material and an increase in the weight of the frame. Moreover, the automobile engine is the largest source of vibration and noise except for road excitation. In the case of using steel, it is necessary to design a vibration-damping structure, which not only increases the corresponding vibration-damping and vibration-absorbing components, but also increases the weight of the frame. [0003] According to the research data of the Worl...

AI Technical Summary

Problems solved by technology

[0002] At present, the vast majority of car frames are made of special steel plates pressed on special molds. The general non-load-bearing body frame and body are separated. The frame is often made into a whole, and the materials used and the shape and size are the same. The stress conditions of each part of the frame are different, which results in a waste of materials and an increase in the weight of the frame.

Moreover, the automobile engine is the largest source of vibration and noise other than road excitation. In the case of using steel, it is necessary to design an additional damping structure, which not only increases the corresponding vibration-absorbing components, but also increases the weight of the frame.

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