Single-ski high-speed pantograph head

By designing a single-slide high-speed pantograph head, and adopting a quadrilateral frame and an inclined spring cylinder structure, the problems of air path breakage and longitudinal impact in the pantograph head during high-speed operation were solved, thereby improving the reliability and safety of the pantograph head and reducing operation and maintenance costs.

CN117656848BActive Publication Date: 2026-07-21BEIJING CED RAILWAY ELECTRIC TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING CED RAILWAY ELECTRIC TECH
Filing Date
2023-12-28
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The pantograph head of existing high-speed trains is susceptible to damage from foreign objects during high-speed operation, which can cause air circuit breakage and the spring cylinder to fail to buffer longitudinal impacts, affecting operational reliability and safety.

Method used

It adopts a single-slide high-speed pantograph head design, including carbon slide, pantograph head support, pantograph angle, central shaft and ADD air passage. Utilizing a quadrilateral frame and inclined spring cylinder structure, it integrates pantograph head elastic suspension and longitudinal buffer function to improve the pantograph head's impact resistance.

Benefits of technology

It improves the bow head's catenary following performance and safety, reduces maintenance costs, avoids automatic bow descent problems caused by air circuit breakage and foreign object impact, and enhances the reliability of the bow head structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a single-slip high-speed pantograph head, which comprises a carbon slip, a head support, a head angle, a central shaft and an ADD gas circuit; the head suspension system adopts a quadrilateral structure frame and an obliquely arranged spring cylinder arrangement structure, and has vertical and longitudinal buffering performance, thereby solving the problem of no longitudinal impact buffering function of the existing single-slip pantograph head, improving the reliability of the high-speed pantograph head and the pantograph-catenary safety, integrating the head ADD gas circuit below the carbon slip with the head support structure, effectively improving the reliability of the head gas circuit structure, solving the problem that the head ADD gas circuit of the existing pantograph is easily broken by foreign matters during the operation of the pantograph, and avoiding frequent replacement of the head ADD gas circuit during the operation and maintenance of the vehicle, so that the operation and maintenance cost can be effectively reduced.
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