一种适用于跨座式单轨车辆铰接转向架的底架连接结构

The frame structure design solves the problems of complex force transmission and low space utilization in the chassis connection structure of straddle-type monorail vehicles, achieving improved strength and rigidity, lightweight design and efficient production, and enhancing the utilization of the interior space of the vehicle body.

CN118877034BActive Publication Date: 2026-07-17CRRC NANJING PUZHEN CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CRRC NANJING PUZHEN CO LTD
Filing Date
2024-08-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The bogie underframe connection structure of traditional straddle-type monorail vehicles has problems such as complex force transmission, low space utilization, and insufficient structural strength and stiffness. In particular, the design of the tire area has gaps that cause stress concentration, and the material strength and stiffness are insufficient.

Method used

The frame structure consists of small longitudinal beams, large longitudinal beams, cross beams, and hinged mounting beams. The longitudinal traction force is transmitted through riveting and bolting. The hinged mounting beams are fixed to the hinged bogies. Combining the advantages of carbon steel components and castings, the structure is simplified and the load-bearing capacity is enhanced.

Benefits of technology

It improves the utilization rate of the car body's internal space, enhances the strength and rigidity of the structure, achieves lightweight design, simplifies the production process, reduces welding deformation, realizes the fixed connection between the articulated bogie and the car body, and improves the overall load-bearing capacity.

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Abstract

本发明公开了适用于跨座式单轨车辆铰接转向架的底架连接结构,用于连接铰接转向架和底架并传递纵向牵引力,包括小纵梁组成、大纵梁组成、横梁组成和铰接安装梁;横梁组成横跨连接于小纵梁和大纵梁的后端,铰接安装梁横跨连接于小纵梁组成和大纵梁的前端,铰接安装梁与铰接转向架固定连接,铰接转向架的弯矩力分别通过小纵梁组成和大纵梁组成平滑过渡到底架地板。本结构合理利用铸件和碳钢件的优势,使得整体结构更简洁、承载能力更强、轻量化更优,易于实现模块化生产,焊接变形小,结构尺寸易于控制;且充分利用车端空间,使得内装轮仓更小及更靠近贯通道,增大客室内有效利用面积;并且,实现了铰接转向架铰接点和车体的固连。
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