Railway Axle Box Structure with Deviated Mounting Seat
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Solution Overview
Problem
The existing rocker arm type axle box structure in railway vehicles limits space for components like the brake disc and brake clamp, affecting assembly relationships and performance, and complicates the process of replacing the wheel set.
Innovation Solution
The axle box structure is optimized by deviating the longitudinal center plane of the positioning joint mounting seat outwardly relative to the axle box body, allowing more space for the brake clamp and facilitating its mounting and replacement, with a separated structure for the axle box body that includes an upper and lower box body in a seal fit, enabling easier assembly and disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the rocker arm type axle box structure is mounted on the outer side of the wheel set, then the axle box structure can be stably installed, but the space for brake disc and brake clamp becomes limited
Solution Approach 1:
The patent applies dimensionality change by deviating the longitudinal center plane of the positioning joint mounting seat outwardly from the longitudinal center plane of the axle box body. This spatial reconfiguration in the longitudinal dimension creates additional space for brake components while preserving the stable outer-side mounting arrangement of the axle box structure.
2Volume of moving object
If multiple components are arranged in limited space under the vehicle, then the vehicle structure is compact, but the assembly relationships between components are affected and performance deteriorates
Solution Approach 1:
The patent applies asymmetry by positioning the positioning joint mounting seat with its longitudinal center plane deviated outwardly from the axle box body's center plane. This asymmetric arrangement optimizes the spatial distribution of components, improving assembly relationships and vehicle performance while maintaining compact space utilization.
3Area of stationary object
If the brake clamp is mounted in limited space, then the vehicle layout is compact, but the mounting and replacement of brake clamp and wheel set becomes complicated
Solution Approach 1:
The patent applies dimensionality change by deviating the positioning joint mounting seat's center plane outwardly, which creates additional accessible space for brake clamp installation and removal operations. This spatial reconfiguration in the longitudinal dimension facilitates easier mounting and replacement of both brake clamp and wheel set while maintaining compact overall layout.
Data Source
AI summary
A railway vehicle and an axle box structure thereof are provided. The axle box structure includes an axle box body and a positioning joint mounting seat, and a bearing mounting cavity is provided inside the axle box body. The positioning joint mounting seat is provided with a mounting cavity configured to mount a positioning joint, a longitudinal center line of the axle box body is in parallel with a longitudinal center plane of the positioning joint mounting seat, and the longitudinal center plane of the positioning joint mounting seat is outwardly deviated with respect to a longitudinal center plane of the axle box body. In this way, a large space can be left for mounting the brake clamp, and the mounting and replacing of the brake clamp and the wheel set can be facilitated.