Self-Railing Rail Car with Extendable Arms
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Solution Overview
Problem
Current methods for re-railing rail cars after derailment are time-consuming and disruptive, often requiring heavy lifting equipment that can cause delays and shut down surrounding operations, especially in tight factory spaces where equipment and tracks are affected.
Innovation Solution
Integration of extendable arms on rail cars equipped with hydraulic actuators that allow the cars to raise and realign their wheels with the tracks, minimizing the need for external lifting equipment and enabling quick re-railing without occupying additional space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heavy lifting equipment (crane) is brought in to lift and realign the rail car, then the rail car can be re-railed, but the process becomes time-consuming and causes operational disruptions
Solution Approach 1:
The rail car is equipped with self-contained extendable arms and hydraulic actuators that enable it to lift and realign itself without external assistance. This self-service capability eliminates the need to bring in heavy lifting equipment, allowing the rail car to be re-railed quickly and reducing downtime significantly
Solution Approach 2:
The extendable arms and hydraulic actuators are pre-installed on the rail car body, positioned and configured in advance. When derailment occurs, these pre-positioned components can immediately engage with the ground surface and begin the lifting process without requiring any setup or assembly time, enabling rapid response
2Reliability
If heavy lifting equipment is transported to the derailment location, then the rail car can be re-railed, but additional time is lost for equipment transport and setup
Solution Approach 1:
The rail car carries its own lifting mechanism (extendable arms with hydraulic actuators) as integral components. This eliminates the need to transport external heavy lifting equipment to the derailment location, allowing the re-railing operation to begin immediately and minimizing track unavailability
Solution Approach 2:
The lifting mechanism is merged with the rail car body itself, combining the transport function and the re-railing function into a single integrated system. This eliminates the separate equipment transport step and ensures the lifting capability travels with the rail car wherever it operates
3Reliability
If lifting equipment occupies or blocks tracks and work stations, then the rail car can be lifted, but surrounding tracks and equipment become inoperable
Solution Approach 1:
The rail car uses its own extendable arms to lift itself, eliminating the need for external lifting equipment that would occupy space. The arms extend laterally only when needed for the lifting operation and can be retracted afterward, minimizing space occupation and allowing surrounding tracks to remain accessible
Solution Approach 2:
The extendable arms transition from a compact stowed position (when not in use) to an extended deployed position (during lifting). This dynamic configuration allows the system to occupy minimal space during normal operation and only expand laterally when absolutely necessary for the re-railing function
Data Source
AI summary
A method and apparatus of re-railing a rail car involving the use of one or more extendable arms carried by each individual rail car is provided. The extendable arms may be operable to extend outward from the rail car and then lower an extendable foot to contact the ground, thus allowing the car to be raised into position back over the rails of the associated train tracks utilizing these extendable arms. Since the arms are compact and carried by the rail car themselves, there is no time lost while lifting equipment is brought in and cars may be quickly and efficiently re-railed to minimize the overall time loss of the associated train tracks.