Railway vehicle bogie frame, bogie and railway vehicle

By adopting a design with side beams and outer wheels and air springs in the bogie, combined with the integrated installation of crossbeams and connectors, the problems of poor ability to pass through small radius curves and insufficient structural compactness of traditional bogies have been solved, achieving a lightweight and compact frame structure and improving the running performance of rail vehicles.

CN116001837BActive Publication Date: 2026-07-21CRRC QINGDAO SIFANG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CRRC QINGDAO SIFANG CO LTD
Filing Date
2023-01-04
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The wheels and axle boxes of traditional bogies are located on the inside of the frame, which results in poor ability of rail vehicles to pass through small-radius curves, insufficient adaptability to track twisting, and poor frame structure compactness.

Method used

The design adopts parallel side beams connecting to the crossbeams. The wheels are installed on the outside of the side beams, and the air spring support is located on the outside of the side beams. The wheels and air springs work on the outside. A center pin mounting channel is set in the middle of the crossbeam. The connecting parts integrate the installation of the gearbox hanger, tread cleaner and brake mounting base. The internal structure of the frame is hollow to reduce weight.

Benefits of technology

It improves the ability of rail vehicles to pass through small-radius curves, reduces the mass of the bogie, improves the running quality, has a more compact structure, a reasonable component layout, and meets the installation interface requirements.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN116001837B_ABST
    Figure CN116001837B_ABST
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Abstract

The present application relates to the field of rail vehicle technology, and provides a rail vehicle bogie structure, a bogie and a rail vehicle, the rail vehicle bogie structure comprising two side beams, a cross beam and two air spring support seats. The two side beams are arranged in parallel. The cross beam is arranged between the two side beams, and a center pin mounting channel for connecting a center pin is formed in the middle of the cross beam. The two air spring support seats are respectively arranged on the side of the two side beams away from each other. Among them, the wheels of the rail vehicle are adapted to be mounted on the outer sides of the two side beams, each side beam is respectively provided with a mounting hole, a connecting piece is arranged in the mounting hole, one end of the connecting piece is located on the inner side of the side beam and forms a gear box hanger, and the other end of the connecting piece is located on the outer side of the side beam and is connected with a tread cleaner mounting seat and a brake mounting seat. The ability of the rail vehicle to pass through a small radius curve is improved, the mass of the bogie is reduced, the running quality of the rail vehicle is improved, and the structure of the bogie is more compact.
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