Railway wagon floor renovation maintenance production line and renovation maintenance method

By using a linear flow structure that combines the transport rails and trailers, along with the precise positioning and flipping of the tilting frame, and combined with intelligent cutting and welding mechanisms, the problem of vehicle transfer difficulties in the maintenance of railcar floors has been solved, achieving an efficient and stable floor renovation process.

CN122401092APending Publication Date: 2026-07-17CRRC SHIJIAZHUANG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CRRC SHIJIAZHUANG CO LTD
Filing Date
2026-04-27
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, when maintaining the floor of rail freight cars, it is difficult for vehicles to move between different processes. The reliance on hoisting equipment leads to high equipment utilization and increased wear. When maintaining multiple vehicles, scheduling conflicts and waiting times are serious, making it difficult to achieve efficient and continuous operation.

Method used

It adopts a linear flow structure that combines a conveyor rail with a trailer, and achieves precise positioning and tilting of the truck through a tilting frame. It eliminates the workstation transfer and posture adjustment of traditional hoisting equipment, and combines intelligent cutting and welding mechanisms to achieve automated removal of old flooring and precise welding of new flooring.

Benefits of technology

This enabled the orderly and rapid transfer of vehicles between various processes, reduced the full-load occupancy and wear of hoisting equipment, avoided scheduling conflicts and waiting time, and improved the overall efficiency of multi-vehicle parallel maintenance and the stability of floor renovation quality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122401092A_ABST
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Abstract

The application provides a rail freight car floor renovation maintenance production line and a renovation maintenance method, and relates to the technical field of rail vehicle maintenance. The production line comprises a conveying track, a trolley, a cutting mechanism, a welding mechanism and a turnover mechanism. The trolley is installed on the conveying track and is used for supporting and fixing the freight car and moving along the conveying track; the cutting mechanism and the welding mechanism are arranged on one side of the conveying track in sequence; and the turnover mechanism is correspondingly arranged at the cutting mechanism and the welding mechanism. When the trolley moves to the turnover mechanism, the trolley is turned over by the turnover mechanism, so that the bottom of the freight car faces the cutting mechanism or the welding mechanism. Through the cooperation of the trolley and the turnover mechanism, the ordered flow and the automatic adjustment of the posture of the freight car between the floor removal and the welding process are realized, the freight car does not need to be hoisted by a crown block, the equipment scheduling conflict and the waiting time are avoided, the continuity and the overall efficiency of the floor renovation maintenance are significantly improved, and the welding quality and the process stability are ensured.
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