Steering control device of self-adaptive bridge girder erection machine

By using the adaptive bridge erecting machine steering control device, which utilizes the coaxial connection between the upper and lower turntables and the mechanical limit structure, the problem of difficult steering control of traditional bridge erecting machines on complex lines is solved. This achieves precise rotation angle control and easy operation, improving construction efficiency and safety.

CN224395419UActive Publication Date: 2026-06-23CHINA RAILWAY FIFTH BUREAU GRP CHENGDU ENG CO LTD +1
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Patent Information

Application Number
CN202521348140.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-30
Publication Date
2026-06-23
Estimated Expiration
2035-06-30

AI Technical Summary

Technical Problem

When traditional bridge erecting machines are used on complex lines such as small-radius curves and cross-line bridge sites, the fixed connection structure results in a large turning radius and poor maneuverability, which affects construction efficiency and safety.

Method used

The structure employs rotatable connecting legs and longitudinal guide beams. Through the adaptive bridge erecting machine steering control device, the coaxial connection between the upper and lower turntables, combined with the mechanical limiting structure of studs, positioning nuts, and clamping plates, enables precise control of the rotation angle.

Benefits of technology

It improves the adaptability and operational safety of the bridge erecting machine in complex construction environments, ensures precise control of the rotation angle and ease of operation, and reduces motion lag issues.

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Abstract

The utility model provides a self-adaptive steering control device for a bridge girder erection machine, which relates to the technical field of bridge girder erection machine equipment and comprises a lower turntable, the lower turntable is fixedly connected with supporting legs of the bridge girder erection machine, and a lower rotating flange plate is coaxially and fixedly welded on the lower turntable; the upper rotating disc is coaxially and rotatably connected to the lower rotating disc, the upper rotating disc is connected with the longitudinal guide beam, an upper rotating flange plate is coaxially and fixedly welded to the upper rotating disc, and a plurality of strip-shaped holes are formed in the upper rotating flange plate in the circumferential direction; the studs are fixedly connected to the lower rotating flange plate, and each stud is in threaded connection with a positioning nut; the height limiting part is arranged in the length direction of the strip-shaped hole and fixedly connected to the top wall of the upper rotating flange plate, and the height of the height limiting part is gradually reduced from the two ends to the middle in the length direction; the clamping plate is rotationally connected to the bottom wall of the positioning nut. According to the utility model, the rotation angle can be accurately regulated and controlled, the operation is simple and convenient, and the adaptability and the operation safety of the bridge girder erection machine in complex construction scenes can be obviously improved.
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