Railway vehicle and bogie mounting structure

By adopting the innovative design of the underframe bearing structure and end structure in the steel-wheel and rubber-wheel co-drive bogie, the problems of insufficient radius capacity and reduced body structural strength of large-capacity subway vehicles have been solved, lightweight and sound insulation effects have been achieved, and the versatility of the train and passenger comfort have been improved.

CN117068219BActive Publication Date: 2025-10-17ZHUZHOU ELECTRIC LOCOMOTIVE CO LTD
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Patent Information

Application Number
CN202311097847.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-08-29
Publication Date
2025-10-17
Estimated Expiration
2043-08-29

AI Technical Summary

Technical Problem

The existing steel wheel and rubber wheel co-drive bogies in large-capacity subway vehicles have problems such as insufficient radius capacity, reduced car body structural strength, difficult installation, and high noise.

Method used

The innovative design of the underframe bearing structure and end structure is adopted, including a "目"-shaped structure composed of underframe side beams, bolster beams, traction beams and transition plates. By processing notches and multi-layer cavity design in the front and back of the bolster beams, combined with aluminum alloy profiles instead of carbon steel plates, the installation of the rotary support structure is achieved, and a double-layer closed cavity floor is used for sound insulation.

Benefits of technology

The train's small radius and large-capacity capacity have been improved, the structural strength and sound insulation performance of the car body have been enhanced, and a lightweight design has been achieved.

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Abstract

The application discloses a rail train and a bogie mounting structure. The bogie mounting structure comprises a bogie bearing structure, an end structure and a bogie. The bogie bearing structure comprises a bogie side beam, an end side floor, a pillow side floor, a pillow inner floor and a long floor. The end structure comprises a pillow beam, a traction beam and a transition plate. The pillow beam and the traction beam are partially embedded in the interior of the bogie bearing structure. The bogie comprises rubber wheels, steel wheels, guide wheels, a rotary support structure and a framework. The rubber wheels are located outside the steel wheels. The framework is fixed below the end structure through the rotary support structure. A side beam notch is arranged below the bogie side beam and located at the front and back positions of the pillow beam. The side beam notch is distributed at the corresponding position of the rubber wheels to provide a movement space for the rubber wheels. The application solves the problems of small radius and large slope climbing of a large-capacity rubber wheel subway system and the strength problem of the vehicle body itself.
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