Modular Locking Assembly for Replaceable Pin Repair
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Solution Overview
Problem
Existing locking assemblies for auto-rack railroad cars are prone to damage and failure under high load and usage conditions, leading to functional issues and requiring complete replacement, as components like guide tubes, locking pins, and pivot pins are often bent or cracked, and cannot be easily repaired.
Innovation Solution
A locking assembly design featuring a guide tube with removable components, including a slidable locking pin and pivot pin, secured by a handle via a roll pin, allowing for easy replacement of damaged parts without replacing the entire assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the locking assembly uses welded connections between pins and handles, then the assembly provides structural strength and reliability, but the assembly becomes difficult to repair and requires complete replacement when components are damaged
Solution Approach 1:
The locking assembly is divided into separable components (guide tube, locking pin, pivot pin, handle) that can be independently replaced. The handle is detachably connected to the locking pin, allowing the handle to be replaced without replacing the entire assembly, thus resolving the contradiction between structural strength and repairability.
2Strength
If the locking assembly components are permanently fixed together, then the assembly maintains structural integrity under high load, but damaged components cannot be easily replaced
Solution Approach 1:
The guide tube is pre-configured with openings that allow pins to be inserted and secured. The handle is designed with a detachable connection mechanism that allows for easy removal and replacement of the locking pin and handle components, maintaining structural integrity while enabling component replaceability.
3Reliability
If the locking assembly uses a fixed design, then the assembly provides consistent performance, but it cannot be adapted when components are damaged or worn
Solution Approach 1:
The locking assembly transitions from a fixed design to a dynamic, modular design where components can be independently replaced. The detachable handle connection and open guide tube design allow the assembly to adapt to damaged components by replacing only the affected parts, maintaining reliable performance while improving adaptability.
Data Source
AI summary
A locking assembly includes an elongated guide tube configured to be coupled to a first component. The guide tube is elongated in a first direction from a first end to an opposite second end. The locking assembly also includes a first pin partially disposed in the guide tube and protruding from the first end of the guide tube. The first pin can be received in a first receiver. The locking assembly also includes a second pin partially disposed in the guide tube and protruding from the second end of the guide tube. This second pin can be received in a second receiver. The locking assembly also includes a handle removably coupled with the second pin. The handle can be grasped and moved to slide the second pin relative to the guide tube and the first pin along the first direction.