Railway Switch Support Monoblock Design
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Solution Overview
Problem
Existing superstructure devices for switch supports are inefficient in terms of material usage and energy consumption, as they require extensive welding of high-tensile steel and do not allow for easy integration into track systems without increasing the number of welding joints, which is costly and complex.
Innovation Solution
A superstructure device design where the block extends beyond the switch support on both sides, supported by elevated structural steel supports, allowing for energy-efficient heating and material savings by using a monoblock design that can be lengthened or shortened as needed, with insulation to reduce heat transfer and energy loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the block is made to extend beyond the switch support on both sides to allow integration into track systems, then the number of welding joints is reduced and integration is simplified, but the amount of high-tensile steel required increases
Solution Approach 1:
The support structure is divided into two segments: a high-tensile steel block for wear-resistant areas and a separate lower part made of less expensive material for the extended support sections. This segmentation allows the block to extend beyond the switch support for easier track integration while using material efficiently only where high wear resistance is needed.
Solution Approach 2:
The invention uses composite construction by combining high-tensile steel for the block with a different material (such as normal steel or concrete) for the lower part. This composite approach allows the structure to extend beyond the switch support for simplified track system integration while reducing overall high-tensile steel consumption.
2Temperature
If heating rods are arranged in the hollow below the switch support, then the switch support can be heated to prevent freezing, but energy is lost through heat transfer to the lower structure
Solution Approach 1:
An insulating layer is introduced as an intermediary between the heated switch support block and the lower part structure. This insulation layer prevents direct heat transfer to the lower structure, reducing energy loss while maintaining the necessary heating function to prevent freezing of the switch support.
Solution Approach 2:
The invention addresses the potential harm of heat loss to the lower structure by using insulation materials that convert the harmful heat transfer into beneficial thermal retention, keeping the heat where it is needed (at the switch support) rather than allowing it to dissipate to the lower structure.
3Strength
If the lower part is made block-like from high-tensile steel to match the block, then wear resistance is maximized, but material costs and weight increase significantly
Solution Approach 1:
High-tensile steel is applied locally only to the block that requires wear resistance (the switch support area), while the lower part that does not experience wear is made from less expensive materials. This local quality approach ensures wear resistance where needed while minimizing overall high-tensile steel consumption.
Solution Approach 2:
The structure is segmented into a high-tensile steel block for wear-prone areas and a lower part made of different materials for non-wear areas. This segmentation allows the block to have maximum wear resistance while the lower part uses cost-effective materials, reducing overall material costs and weight.
4Device complexity
If the block extends along the entire length of the switching device, then welding requirements are reduced, but the complexity of manufacturing and transporting the monoblock increases
Solution Approach 1:
The switching device is segmented into a pre-manufactured high-tensile steel block and a separate lower part that can be produced independently. This segmentation allows each component to be manufactured and transported separately, reducing the complexity of producing and handling a single large monoblock, while still minimizing welding joints in the final assembly.
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
This design achieves cost-effective material usage and energy-efficient heating by minimizing the need for on-site welding of high-tensile steel, allowing for easier integration into track systems while maintaining high wear resistance and thermal insulation.
Implementation Method 1
The interior space is thermally insulated by insulation introduced separately into the interior space at least towards the base or mounting plate
Data Source
AI summary
A superstructure device (10) for a set of points having a switch support which is composed of a block of high-strength steel and which has stock and short point rails which delimit said switch support and are formed integrally from the block, wherein the block is connected to a lower part composed of a material other than the high-strength steel, such as mild steel, and is in particular connected in a materially joined fashion, wherein the block extends essentially over the entire length of a switch rail device as the superstructure device on both sides beyond the switch support, and the lower part is a means of supporting the block in the form of at least two supports which are spaced apart from one another.