Rail Fastening Catch Connection for Sleeper Alignment
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Solution Overview
Problem
Existing rail fastening systems require complex alignment and positioning of guide plates and base plates during installation, complicating the process and increasing the number of work stages at the construction site.
Innovation Solution
A catch connection between the guide plate and base plate allows for preassembly of the structural unit before installation, ensuring proper alignment and simplifying the installation process by forming a structural unit that can be easily positioned on the sleeper.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If guide plates and base plate are installed separately with adhesive, then flexibility in installation is maintained, but alignment precision and installation complexity increase
Solution Approach 1:
The guide plate and base plate are merged into a single pre-assembled unit with integrated positioning elements. The guide plate includes positioning protrusions that directly engage with positioning recesses in the base plate, creating a unified structure that eliminates the need for separate alignment operations during installation.
Solution Approach 2:
The alignment and positioning of the guide plate relative to the base plate is performed in advance during manufacturing, not during field installation. The positioning protrusions and recesses are pre-formed on the components, allowing the unit to be assembled with simple mechanical engagement rather than requiring precise field alignment.
2Adaptability or versatility
If multiple separate components are used, then adaptability is improved, but the number of work stages increases
Solution Approach 1:
Multiple functional elements are combined into the pre-assembled guide plate-base plate unit. The guide plate provides guiding functionality while the base plate provides mounting functionality, and their integration into a single assembly reduces the number of separate installation steps required at the construction site.
Solution Approach 2:
The complex positioning and alignment operations are performed in advance during manufacturing of the pre-assembled unit. This preliminary action transfers work from the construction site to the manufacturing facility, reducing on-site installation time and complexity.
Data Source
AI summary
The invention relates to a system for fastening a rail to a sleeper with a baseplate, which includes at least one side portion and a bearing surface adjoining the side portion for the rail to be fastened, and with at least one guide plate that sits on the side portion. In order to simplify the installation on the respective sleeper in such a system, the invention provides that the guide plate is held on the baseplate by a catch connection formed in the region of the side portion.