Cast axle housing shaft head with unloading groove

By setting up a unloading groove between the oil seal mounting part of the cast bridge shell shaft head and the brake flange part to transfer the stress distribution, the problem of stress concentration at the chamfer of the cast bridge shell shaft head shaft head shaft head shaft head is solved, and the effect of stress reduction of more than 15% is achieved.

CN222629027UActive Publication Date: 2025-03-18JILIN WEICHUANG ELECTROMECHANICAL ENG CO LTD
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Patent Information

Application Number
CN202420766375.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-15
Publication Date
2025-03-18
Estimated Expiration
2034-04-15

AI Technical Summary

Technical Problem

The existing cast bridge shell shaft head is concentrated at the chamfer of the shaft shoulder, which causes the material's mechanical properties to fail to meet the requirements.

Method used

A cast bridge shell shaft head with unloading groove is designed. By setting a C-type or U-type unloading groove between the oil seal mounting part and the brake flange part, the stress distribution is transferred and the stress at the chamfer of the shaft shoulder is reduced.

Benefits of technology

Without increasing the weight of the bridge shell, the stress at the shoulder chamfer is effectively reduced by setting up a loading groove, thereby achieving a stress reduction of more than 15%.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model discloses a cast axle housing shaft head with an unloading groove, which comprises a bearing installation part, an oil seal installation part and a brake flange part, the bearing installation part, the oil seal installation part and the brake flange part are arranged in sequence, a shaft shoulder chamfer is arranged between the bearing installation part and the oil seal installation part, the unloading groove is arranged between the oil seal installation part and the brake flange part, and the bearing installation part is connected with the oil seal installation part. Due to the casting process characteristics, stress can be transferred by arranging the unloading groove on the basis that the weight of the axle housing is not increased, the stress at the chamfer of the shaft shoulder is reduced, and the service life of the axle housing is prolonged. Compared with the conventional axle housing without the unloading groove, the axle housing with the unloading groove has the advantage that the stress at the chamfer of the shaft shoulder is reduced by more than 15%.
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