Railroad Trailer Chassis with Interchangeable Axles
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Solution Overview
Problem
Current railroad maintenance equipment is large and heavy, making it difficult to maneuver and transport, requiring special shipping and cranes for placement on tracks, and there is a need for smaller, more versatile equipment that can operate on both roads and rails.
Innovation Solution
A railroad trailer chassis with interchangeable road and rail axles that can be powered and configured for various maintenance functions, allowing it to be towed, driven on roads, or driven on rails, featuring a foldable towing hitch and modular work units for flexibility and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If large and heavy railroad maintenance equipment is used, then maintenance functions can be performed, but the equipment becomes difficult to maneuver and transport, requiring special shipping permits and cranes for placement
Solution Approach 1:
The patent applies dynamics by making the axle configuration changeable. The railroad maintenance equipment can dynamically switch between road mode (with road axles) and rail mode (with rail axles) based on operational needs. This dynamic reconfiguration allows the equipment to be towed on roads using road axles and then switched to rail axles for track operations, eliminating the need for cranes and special shipping arrangements.
Solution Approach 2:
The patent implements universality by designing equipment that can perform multiple functions across different environments. The same maintenance equipment can operate on both roads and rails by switching axle configurations, serving as both a road vehicle and a rail vehicle. This multi-functionality eliminates the need for separate transport and maintenance equipment.
2Reliability
If large and heavy railroad maintenance equipment is used, then maintenance functions can be performed, but special shipping permits and cranes are required, increasing costs and regulatory burdens
Solution Approach 1:
The equipment is designed with universal capability to operate on both roads and rails, eliminating the need for separate transport and maintenance machinery. By integrating both road and rail operational modes in a single device, the patent removes the requirement for special shipping permits and crane operations.
Solution Approach 2:
The patent merges the functions of road vehicles and rail vehicles into a single integrated system. The equipment combines road axles and rail axles in one chassis, allowing it to function as both a highway vehicle and a railroad vehicle, thereby consolidating what would traditionally require multiple separate pieces of equipment.
3Speed
If traditional railroad equipment is shipped on specialty trailers, then the equipment can be transported to the desired location, but a crane is needed to lift the equipment from the trailer to set it onto the tracks
Solution Approach 1:
The patent applies dynamics by enabling the equipment to autonomously switch between road and rail configurations. Instead of requiring external lifting equipment, the maintenance vehicle can dynamically reconfigure its own axle system to transition from road mode to rail mode, placing itself onto the tracks without crane assistance.
4Ease of operation
If smaller, more maneuverable railroad equipment is used, then ease of operation and versatility improve, but the equipment must be capable of operating on both road and rail surfaces
Solution Approach 1:
The patent resolves this contradiction by making the axle configuration dynamic and changeable. The equipment maintains a compact, maneuverable design while incorporating the capability to switch between road axles and rail axles. This dynamic reconfiguration allows small equipment to adapt to both road and rail environments without sacrificing maneuverability.
Solution Approach 2:
The patent achieves universality by designing a single compact equipment that can operate in both road and rail modes. The interchangeable axle system allows the same small equipment to perform maintenance on tracks while being transportable on roads, eliminating the need for larger specialized equipment.
Data Source
AI summary
A railroad trailer chassis comprising two or more road axles, two or more rail axles operable to be moved between first and second positions, and a work unit. The railroad trailer chassis is operable to be driven or towed in a road mode when the two or rail axles are in their respective first positions. The railroad trailer chassis is operable to be driven or towed in a rail mode when the two or more rail axles are in their respective second positions. The work unit is operable to perform one or more railroad maintenance or operation functions when driven in the rail mode.