Shot peening strengthened automobile steering torsion bar

The vehicle steering torsion bar is processed through shot peening strengthening technology, which solves the problem of traditional torsion bars being prone to fatigue under alternating torque, and achieves flexible adjustment of torsion stiffness and improved fatigue resistance, extends service life and improves the stability of the steering system.

CN119611511APending Publication Date: 2025-03-14硕泰机械(浙江)有限公司
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Patent Information

Application Number
CN202510069807.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-16
Publication Date
2025-03-14

AI Technical Summary

Technical Problem

The traditional steering gear torsion bar is prone to fatigue damage when withstanding alternating torque, and the torsion stiffness is unadjustable, making it difficult to adapt to different models and driving modes. The wear resistance is insufficient, which affects the life and performance of the steering system.

Method used

The vehicle steering torsion rod is processed by using shot peening technology. By spraying projectiles on the surface of the torsion stiffness section, the material's fatigue resistance is enhanced and the torque signal is monitored through sensors to achieve flexible adjustment of torsion stiffness.

Benefits of technology

It significantly improves fatigue resistance, extends service life, can flexibly adjust torsional stiffness according to needs, adapts to multiple driving modes, and improves steering feel and system stability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN119611511A_ABST
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Abstract

The invention discloses a shot peening strengthened automobile steering torsion bar which comprises a torsion bar body, the two ends of the torsion bar body are pressed and embedded into an inner hole of an input shaft / output shaft through an involute spline and a tooth top diameter in an interference fit mode to be connected, the middle portion of the torsion bar body is arranged to be a torsion rigidity section, and shot peening medium treatment is additionally arranged on the surface of the torsion rigidity section. The method has the advantages that the surface is subjected to shot peening strengthening treatment, the anti-fatigue performance is improved, the torsional rigidity is achieved, torque signals can be monitored through the sensor according to the torsion bar deformation, meanwhile, the durability characteristic is enhanced, and the automobile steering hand feeling and the system stability are optimized.
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