Anti-derailing device and active anti-derailing system for a rail vehicle

By installing a combination of anti-derailment frame and electromagnet on the rail vehicle, and utilizing drive components and electromagnetic adsorption technology, the problems of deformation and interference of the anti-derailment device are solved, achieving a safe anti-derailment effect under various operating conditions.

CN117719549BActive Publication Date: 2026-06-12ZHUZHOU ELECTRIC LOCOMOTIVE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHUZHOU ELECTRIC LOCOMOTIVE CO LTD
Filing Date
2023-11-10
Publication Date
2026-06-12

AI Technical Summary

⚠Technical Problem

Existing derailment prevention devices are prone to deformation and often interfere with the track when rail vehicles are traveling normally or passing through switches, leading to an increased risk of derailment.

⚗Method used

The system employs a combination of anti-derailment frame, electromagnet, and drive assembly. The anti-derailment frame is located inside the rail, and the drive assembly moves the anti-derailment frame closer to or away from the rail. The electromagnet attracts the rail, forming a stable frame structure that limits the lifting and lateral movement of the wheelset and prevents derailment.

🎯Benefits of technology

It effectively prevents rail vehicles from derailing in straight, curved, and turnout areas, improves vehicle safety, avoids interference between the device and the track, and enhances the vertical and lateral constraints of the bogie.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application discloses an anti-derailment device and an active anti-derailment system for rail vehicles. The anti-derailment device includes an anti-derailment frame, an electromagnet, a drive assembly, and a mounting base. The anti-derailment frame is located inside the rail. The electromagnet is mounted on the anti-derailment frame to attract the rail. One end of the drive assembly is rotatably mounted on the base of the rail vehicle bogie frame via the mounting base, and the other end is connected to the anti-derailment frame to drive the anti-derailment frame closer to or away from the rail. This anti-derailment device is located below the rail vehicle bogie frame, with one anti-derailment frame corresponding to each rail, and the anti-derailment frame is located inside the rail. It will not interfere with the rail when the rail vehicle is traveling normally or passing a switch. By setting up the drive assembly, the anti-derailment frame can be driven to move away from or closer to the rail, connecting the bogie frame and the left and right rails into a stable frame structure. This increases the bogie frame's buoyancy, roll, and lateral movement constraints, thereby indirectly limiting the wheelset's lifting and lateral movement, ultimately achieving the purpose of preventing wheelset derailment.
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