High-speed turnout switch structure and traction stroke optimization method

By optimizing the structure and traction stroke of the high-speed turnout switch, the problem of insufficient displacement of the switch rail under high-speed conditions was solved, improving the operational safety and comfort of the turnout.

CN116397464BActive Publication Date: 2025-12-09RAILWAY CONSTR RES INST OF CHINA ACAD OF RAILWAY SCI CO LTD +1
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Patent Information

Application Number
CN202211671300.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-12-26
Publication Date
2025-12-09
Estimated Expiration
2042-12-26

AI Technical Summary

Technical Problem

The problem of insufficient displacement of the switch rails under high-speed conditions in existing high-speed turnouts affects the comfort and safety of train operation. Existing research has little to do with improving the switch rail switching characteristics from the perspective of structural optimization.

Method used

This paper provides a method for optimizing the structure and traction stroke of a high-speed turnout switch. By optimizing the switch structure design, including the setting and adjustment of various fastener systems, and combining simulation calculations and test platforms, the switching process of the switch rail is optimized to reduce insufficient displacement.

Benefits of technology

It effectively improves the switch characteristics of the switch rail, ensures that the minimum flange groove and switching force meet the requirements, and enhances the operational safety and comfort of high-speed turnouts.

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Abstract

The application discloses a high-speed turnout switch structure and a traction stroke optimization method, proposes a reasonable control method for insufficient displacement based on a high-speed turnout switch rail conversion test, then researches and proposes an optimized design scheme of the switch structure, and finally matches and optimizes the switch traction stroke according to the optimized structure, so that the minimum wheel flange groove and the conversion force meet the requirements and the switch rail repulsion state deformation coordination performance is improved.
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