A Y-type link rear suspension and a car equipped with it

Abstract

The invention relates to a Y-shaped connection rod rear suspension frame. The Y-shaped connection rod rear suspension frame comprises a rocker arm, a main connection rod and a connection rod, wherein the rocker arm stretches across a rear axle of a car and is connected to a bracket of an axle body of the rear axle by a first lining and a spherical hinge is arranged on one end part of the rocker arm; one end of the main connection rod is connected to a bracket of a car body of the car by a second lining and the other end of the main connection rod is hinged to the rocker arm by the spherical hinge; and one end of the connection rod is pivoted to a pivoting point of the middle part of the main connection rod by a third lining and the other end of the connection rod is pivoted to the axle body of the rear axle by a fourth lining. The invention further relates to a car provided with the Y-shaped connection rod rear suspension frame. With the adoption of the Y-shaped connection rod rear suspension frame, transverse relative displacement between the rear axle and the car body in the up-down moving process of the rear axle can be eliminated so as to effectively improve the responding speed and the distribution performance of left and right car loads in the steering process, and suitably improve a side-inclining center of the rear axle to prevent the car from side inclining in the steering process; and therefore, the driving comfort and the driving safety are improved. The Y-shaped connection rod rear suspension frame has a plurality of advantages of compact structure, easiness for installing and manufacturing, stability and reliability for using and the like.

Description

technical field [0001] The invention belongs to the technical field of automobiles, in particular to a Y-shaped link rear suspension and an automobile equipped with the Y-shaped link rear suspension. Background technique [0002] As a widely used means of transportation, automobiles are increasingly valued by people for their driving comfort, smooth operation and safety. Suspension system is an important part of the car, it is a general term for all force transmission connection devices between the frame (or load-bearing body) and the axle (or wheel), which affects the various performances of the car. However, the suspension system in the prior art still has deficiencies in design and actual use. [0003] For example, in figure 1 A partial structure of an existing suspension system of conventional design is shown in . Such as figure 1 Shown, this suspension system is through a thrust rod 1 ' through the thrust rod body support 2 ' that is fixed on the automobile body, th...

AI Technical Summary

Problems solved by technology

However, due to the structural characteristics of the thrust rod 1', during the up-and-down jumping process of the rear axle 7, the rear axle 7 will generate a lateral force on the vehicle body, thereby generating unnecessary vibration and forming a lateral relative displacement, which Will affect and reduce ride comfort

As another example, some existing link rear suspensions also have problems such as application being limited to specific models (such as being only applicable to hard-axle type rear-wheel drive vehicles, not being able to be used for common cars based on front-wheel drive or based on car chassis) MPV vehicles), constrained by local space (such as the geometric size of the rear axle is too large to be arranged), the response speed of the rear suspension, and the distribution performance of the left and right vehicle loads when turning is not ideal, etc.

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