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Twisted Beam Rear Bridge and Its Method for Reducing Welding Stress

A torsion beam rear bridge, welding stress technology, applied in the interconnection system, suspension, transportation and packaging, etc., can solve the problems of weld fatigue failure, high fatigue stress, difficult to reduce within the normal range, etc., to meet the rigidity desired effect

Active Publication Date: 2017-09-01
SHANGHAI HUIZHONG AUTOMOTIVE MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The torsion beam rear axle is widely used due to its simple structure and low cost, but one of its fatal shortcomings is that its welds are prone to fatigue failure due to complex alternating stresses such as torsion and bending, especially the welds between the beam and the longitudinal beams at both ends , often have very high fatigue stress, it is difficult to reduce to the normal range

Method used

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  • Twisted Beam Rear Bridge and Its Method for Reducing Welding Stress

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with specific embodiment and accompanying drawing, set forth more details in the following description so as to fully understand the present invention, but the present invention can obviously be implemented in many other ways different from this description, Those skilled in the art can make similar promotions and deductions based on actual application situations without violating the connotation of the present invention, so the content of this specific embodiment should not limit the protection scope of the present invention.

[0019] Figure 1 to Figure 4 The improved torsion beam is shown. The beam 1 of the torsion beam is an open V-shaped beam, that is, its cross-section is substantially V-shaped, and the upper side is an opening. A rib plate can be arranged inside the opening of the V-shaped beam to increase the cross-beam 1. stiffness. figure 1 The torsion beam shown is attached to the vehicle b...

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Abstract

The purpose of the present invention is to provide an improved torsion beam rear bridge and its method for reducing welding stress, so as to reduce the risk of fatigue failure of its welding seam. In order to realize the torsion beam rear axle of said purpose, there are crossbeams and longitudinal beams, and the crossbeam is an open V-shaped beam, which is characterized in that the skirts at both ends of the crossbeam open outwards relative to the middle part of the crossbeam, and the two ends of the crossbeam are opposite to the center of the crossbeam. The middle part extends downwards, and gaps are provided at the welding places between the bottoms of both ends of the beam and the longitudinal beam.

Description

technical field [0001] The invention relates to an automobile torsion beam rear axle. Background technique [0002] The torsion beam rear axle is widely used due to its simple structure and low cost, but one of its fatal shortcomings is that its welds are prone to fatigue failure due to complex alternating stresses such as torsion and bending, especially the welds between the beam and the longitudinal beams at both ends , often have high fatigue stress, which is difficult to reduce to the normal range. Contents of the invention [0003] The purpose of the present invention is to provide an improved torsion beam rear bridge and its method for reducing welding stress, so as to reduce the risk of fatigue failure of its welding seam. [0004] In order to realize the torsion beam rear axle of said purpose, there are crossbeams and longitudinal beams, and the crossbeam is an open V-shaped beam, which is characterized in that the skirts at both ends of the crossbeam open outward...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60G21/05
Inventor 许光
Owner SHANGHAI HUIZHONG AUTOMOTIVE MFG