Variable-section-line hydraulic expansion tube torsion beam
A variable cross-section and torsion beam technology, applied in the field of vehicle parts, can solve the problems of low reliability and service life, improvement of torsion beam stress characteristics, stress concentration, etc., and achieve the effect of overall performance optimization and fatigue life improvement
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[0026] Example 1
[0027] Such as figure 1 , 2 As shown in, 3, and 4, a torsion beam with variable cross-section line hydraulic expansion tube as a part of a vehicle suspension is composed of a middle fixed section section 1, a transition section 2 and an end connecting section 3. The middle fixed section section 1 is located In the middle position of the torsion beam, the end connecting section 3 is symmetrically located at the two ends of the torsion beam, and the middle fixed section section 1 and the end connecting section 3 smoothly transition through the transition section 2. The middle fixed section section 1 The cross-section of is a double-layer V-shaped, the end connecting section 3 is tubular; the outermost cross-sectional contour line of the end connecting section 3 is longer than the cross-sectional contour line length of the middle fixed section 1 15% to 25% to increase the length of the weld in the area connected to the trailing arm of the suspension, to disperse t...
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