Automotive double-front-axle structure adopting non-independent oblique leaf spring suspensions

Abstract

An automotive double-front-axle structure adopting non-independent oblique leaf spring suspensions comprises a frame, a first front axle, a second front axle and a steering system, wherein each of the two front axles comprises two oblique leaf spring suspensions, an integral axle and a trapezoid steering mechanism; each oblique leaf spring suspension comprises four oblique leaf springs, the first oblique leaf spring and the fourth oblique leaf spring are symmetrical about the axle, and the second oblique leaf spring and the third oblique leaf spring are symmetrical about the axle, and an intersecting line of longitudinal symmetric center surfaces determined by the first oblique leaf spring and the fourth oblique leaf spring is parallel to or collinear with an intersecting line of longitudinal symmetric center surfaces determined by the second oblique leaf spring and the third oblique leaf spring. Compared with a conventional double-front-axle structure adopting non-independent longitudinal leaf spring suspensions, the automobile double-front-axle structure has high bearing capability, the positional parameter variable quantity of wheels can be reduced, the bearing center distance of the leaf springs is increased, and the abnormal wear of the tires is reduced; the wheel steering range is increased, and a whole automobile has better low-speed flexibility.

Description

technical field [0001] The invention relates to an automobile suspension and a steering system, in particular to an innovative structural design of a double front axle suspension with a steering function, and belongs to the field of automobile engineering. Background technique [0002] The axle is also called the axle, and its most basic function is to bear the load of the car and keep the car running normally on the road. According to the structural requirements, some axles need to have additional functions, such as wheel drive, wheel steering, etc. Therefore, according to the different additional functions, the axle can have the following three basic types: drive axle, steering axle and support axle. Double front axle means that the car contains two steering front axles, and the two axles are connected by steering rods. Double front axles are generally used for medium and heavy commercial vehicles. Compared with single front axle vehicles, double front axle vehicles have...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that commercial vehicles use multiple longitudinal leaf springs or use a single longitudinal leaf spring with insufficient strength, and provide an automobile double front axle structure using non-independent oblique leaf spring suspension to ensure that the vehicle Excellent bearing capacity and reliability, reduce abnormal wear of tires, increase bearing center distance at the same time, further improve vehicle anti-rolling ability, and be conducive to vehicle operation stability

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