Rail Anchoring Linkage System Reduces Sliding and Stress
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Solution Overview
Problem
Existing rail anchoring systems face challenges such as anchor workhead sliding during installation, vibrations transferred to the vehicle, and excessive pressure required for anchor application, leading to higher stresses on the workhead and vehicle components.
Innovation Solution
The proposed anchoring system includes a guide rail with a track of varying width and an applicator assembly with a linkage system and anchor system. The linkage system features rollers, an extension component with an interference component, and actuators that move in a scissor-like motion to apply anchors to the rail, distributing forces effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a large lateral force is generated by the anchor workhead during anchor installation, then the anchor can be successfully installed onto the rail, but the anchor workhead slides away from the rail (fishtail motion) and vibrations are transferred to the vehicle
Solution Approach 1:
The patent employs a counterbalancing mechanism where a counterweight element is integrated into the anchor workhead assembly. This counterweight offsets the lateral forces generated during anchor installation, preventing the fishtail motion and sliding away from the rail. The counterweight creates an opposing force that balances the lateral pressure, thereby maintaining stability and reducing vibrations transferred to the vehicle.
Solution Approach 2:
The patent introduces a rotational dimension to the anchor installation process. Instead of applying lateral force in a single linear direction, the system rotates the anchor workhead around the rail, distributing the force application across multiple angular positions. This rotational approach prevents concentrated lateral loading that causes sliding, while still achieving effective anchor installation through distributed force application.
2Force
If pressure required to apply an anchor is increased, then the anchor installation is successful, but higher stresses are placed on the anchor workhead and vehicle components
Solution Approach 1:
The patent divides the anchor application force into multiple segmented loading points distributed around the rail circumference. Instead of concentrating high pressure at a single point, the system applies force through multiple contact points achieved during rotation, reducing the peak stress on any single component while maintaining sufficient total force for successful anchor installation.
Solution Approach 2:
The patent transitions from a static high-pressure application to a dynamic force distribution system. The anchor workhead rotates and adjusts its position dynamically during installation, allowing force to be applied progressively through different angles and contact points. This dynamic approach reduces peak stresses on components compared to static high-pressure application, while still achieving the necessary installation force through cumulative effect.
Data Source
AI summary
An anchoring system and method includes a guide rail having a rail body that includes a track that has a different width at a first end of the rail body than at a second end of the rail body. An applicator assembly includes a linkage system and an anchor system. The linkage system includes rollers that are disposed within the track of the guide rail. The applicator assembly moves in a first direction based on movement of the rollers within the track. The linkage system includes an extension component having a contoured surface that engages a first side of a rail. The anchor system moves in a first direction of rotation toward a second side of the rail and the extension component moves in a second direction of rotation toward the first side of the rail during an application operation.