Railway Track Measuring Carriage with Adjustable Support Legs
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Solution Overview
Problem
Existing self-propelled apparatuses for measuring railway track and switch parameters are cumbersome, costly, and prone to deformation, requiring extensive setup and resulting in low precision measurements, especially at switches due to their inability to adapt to rail gauge variability.
Innovation Solution
A motor-driven carriage with adjustable, H-shaped wheels and a central supporting frame, equipped with laser profilometers and a processing unit, allowing real-time adaptation to rail gauge variations and precise measurement of structural parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If railway bogies are used in self-propelled measuring apparatus, then the apparatus can be self-propelled and stable, but the apparatus becomes heavy, cumbersome, and costly
Solution Approach 1:
The measuring apparatus is divided into separate functional modules: a self-propelled carriage for movement and a separate measuring device with adjustable support legs for measurement. This segmentation allows the heavy bogie structure to be replaced with a lighter, more flexible modular design that achieves stability through the adjustable support legs rather than through heavy rail-mounted bogies.
2Speed
If railway bogies are used in self-propelled measuring apparatus, then the apparatus can move on tracks, but transfer between railway lines becomes difficult and time-consuming
Solution Approach 1:
The support legs are designed to be adjustable in length and position, allowing the measuring device to dynamically adapt to different track configurations and gauge variations. This dynamic adaptability enables easy transfer between different railway lines without requiring complex bogie exchange procedures, while the self-propelled carriage maintains movement capability on standard tracks.
3Reliability
If heavy railway bogies are used, then the apparatus is stable, but the rolling structures deform under the weight, compromising measurement precision
Solution Approach 1:
The measuring device is extracted from the heavy bogie structure and mounted on a separate, lightweight platform with adjustable support legs. This extraction eliminates the deformation problem caused by heavy bogies pressing on rolling structures, while the adjustable support legs provide the necessary stability for precise measurements by directly supporting the measuring instruments at appropriate heights.
4Device complexity
If fixed-distance measuring devices are used, then the apparatus structure is simple, but measurement precision deteriorates when rail gauge varies
Solution Approach 1:
The support legs are designed with adjustable length and position capabilities, allowing the measuring device to dynamically adapt to varying rail gauges, particularly at switches where gauge changes occur. This dynamic adjustment mechanism maintains measurement precision across different track configurations while adding only moderate complexity to the overall apparatus structure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient, precise, and cost-effective measurement of railway track and switch parameters with reduced setup time and minimal disruption to train circulation, accommodating rail gauge changes and preventing deformation.
Implementation Method 1
equipped with laser profilometers and a processing unit
Data Source
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AI summary
A self-propelled apparatus for measuring geometric and/or structural parameters of a railway track and/or switch (80) is provided with a measuring module (3) mounted on a motor-driven carriage (2; 54), which is coupled, in use, to the railway track and/or switch (80) and has a central supporting frame (6) and two trains of wheels (4), each of which is provided with a plurality of wheels (32) for advance of the carriage, rotatably mounted on a corresponding lateral supporting frame (31) releasably engaged to the central supporting frame (6).