Torsion beam automobile axle and automobile

Abstract

The present invention provides a torsion beam axle and an automobile, including a torsion beam, wherein the radial section of the torsion beam is a first variable-size section, and the middle part of the first variable-size section is narrower than both ends; and the The axial section of the torsion beam is a second variable size section, and the middle part of the second variable size section is narrower than the two ends. The torsion beam axle and the automobile provided by the invention change the structure of the torsion beam without affecting the overall performance of the suspension and the positioning of the wheels. By reducing the section coefficient of the middle part, the deformation of the torsion beam is improved, so that the torsion beam has The characteristics of the lower swing arm make the present invention have the characteristics of an independent suspension; the cross-sectional shape of the torsion beam is changed, and the torsional rigidity of the torsion beam axle is improved, thereby improving the lateral resistance of the vehicle; without using cross bars and stabilizer bars, The structure is simplified and the cost is reduced.

Description

technical field [0001] The invention relates to an automobile axle structure, in particular to a torsion beam axle and an automobile. Background technique [0002] The torsion beam bridge suspension includes torsion beam axle, shock absorber and coil spring. The front end connects the pivot with the body through the bushing on the trailing arm, and the rear side is equipped with a wheel on each side. The suspension also has cross members to withstand the lateral forces of the vehicle. [0003] Torsion beam axles are generally welded by torsion beams and trailing arms at both ends. Some torsion beam axles are equipped with stabilizer bars due to their insufficient anti-rolling ability. [0004] When one side of the wheel jumps up and down, the torsion beam will jump around the pivot, thereby driving the other side of the wheel to jump accordingly, reducing the tilt or shake of the entire vehicle body. Because it has a certain torsional stiffness, it can play the same role a...

AI Technical Summary

Problems solved by technology

[0005] However, the torsion beam axle in the prior art has a complex structure due to the arrangement of cross bars and stabilizer bars, and the vehicle camber angle is large, resulting in poor handling performance of the car.

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