Railway Wagon Dual Height Adjustment for Loading Gauge Compliance
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Solution Overview
Problem
Existing railway wagons face limitations in adjusting their height to accommodate varying loads due to factors like wheel wear and spring deflection, leading to unnecessary dimensional constraints and restrictions on load height, with prior solutions being complex and space-inefficient.
Innovation Solution
A railway wagon design featuring a first and second height-adjustment device, where the first device adjusts the chassis vertically and the second device levels the load, allowing for automatic compensation without manual intervention, and includes a partitioned chassis for efficient height adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a safety margin is added to account for wheel wear and spring deflection, then the reliability of the railway wagon is improved, but the construction profile becomes unnecessarily under-dimensioned and load height is restricted
Solution Approach 1:
The patent applies dynamics by making the railway wagon's construction profile adjustable rather than fixed. The height-adjustment devices enable the chassis to dynamically adapt its height based on actual operating conditions (wheel wear, spring deflection, load weight), replacing the static safety margin approach with an active compensation system that maintains reliability without permanently restricting construction dimensions.
2Adaptability or versatility
If the railway wagon height is lowered to increase available load height, then the adaptability to different railway systems is improved, but the chassis stability and load security are worsened
Solution Approach 1:
The patent applies parameter changes by enabling dynamic modification of the chassis height parameter during operation. The height-adjustment devices allow the system to change the vertical position of the chassis relative to the bogies, optimizing the balance between adaptability (lowering for loading gauge compliance) and stability (raising for load security), rather than being constrained to a single fixed height setting.
3Adaptability or versatility
If complex height compensation arrangements are added to solve height adjustment issues, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the height compensation function into two distinct height-adjustment devices: a first device for vertical displacement of the chassis and a second device for leveling the load. This segmentation allows each device to perform a specific function with simpler mechanics, avoiding the need for a single complex mechanism that would need to simultaneously handle both vertical positioning and leveling operations.
Solution Approach 2:
The patent applies universality by designing height-adjustment devices that can serve multiple purposes. The first height-adjustment device not only vertically displaces the chassis but also contributes to load security, while the second height-adjustment device levels the load and compensates for height adjustments. This multi-functionality reduces the need for additional specialized components, simplifying the overall system despite its adaptability.
Data Source
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AI summary
A railway wagon for transporting a load (70) on a railway system, comprising a first bogie (20), a second bogie (30) and a chassis (40) configured to carry the load (70). The chassis (40) extends between the first bogie (20) and the second bogie (30). The railway wagon further comprises an arrangement for height-adjustment of the chassis (40), which has a first height-adjustment device (50) arranged in connection with the chassis (40) and configured to vertically displace the chassis (40) with respect to a lower limit of a loading gauge of the railway system; and a second height-adjustment device (60) arranged at one of the first or second bogies (20, 30) and configured to level the load (70) in response to a vertical displacement of the chassis (40) made by the first height-adjustment device (50).