Modular Rail Cabinet Mounting for Flexible Railway Power Cars
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Solution Overview
Problem
Existing railway power cars require unique, slatted sills for each cabinet location, leading to inefficiencies in production and adaptability across different power car types and locations.
Innovation Solution
A standardized system featuring rails with constant cross-sections and adjustable feet allows cabinets to be securely fastened at any position along the rails, enabling the same structure to be used in multiple locations and types of power cars, along with a central gutter for cable accommodation and perforated design for adaptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If unique slatted sills are created for each cabinet location, then the cabinets can be securely supported, but the production complexity and cost increase for each power car type
Solution Approach 1:
The traditional monolithic slatted sill is segmented into separate components: standard rails with constant cross-section that can be combined with different cabinet feet. This allows the support structure to be assembled from modular elements rather than requiring unique custom-designed sills for each configuration.
Solution Approach 2:
The rails are designed with a universal constant cross-section that can serve multiple cabinet locations and different power car types. The same rail design supports various cabinet configurations through different feet attachments, eliminating the need for location-specific sill designs.
2Manufacturing precision
If unique sills are designed for each power car type, then cabinet locations are optimized, but the manufacturing time and cost increase
Solution Approach 1:
The rails are pre-manufactured with a standardized constant cross-section design that incorporates predetermined slot positions. This preliminary preparation allows for quick assembly at different locations without requiring custom manufacturing for each power car type, thus maintaining precision while improving productivity.
Solution Approach 2:
The system allows adjustment of cabinet positions along the rails through the slot-foot mechanism, enabling precise positioning without changing the fundamental rail parameters. This separates the standardized rail manufacturing from the specific positioning requirements of each application.
3Ease of manufacture
If standardized rails with constant cross-section are used, then production cost decreases and versatility increases, but the adaptability to different cabinet positions must be maintained
Solution Approach 1:
The rails incorporate longitudinal slots that provide positioning flexibility along the length of the rail. This adds a dimensional degree of freedom for cabinet placement while maintaining the simplified constant cross-section design, allowing adaptation to different positions without complicating the manufacturing process.
Solution Approach 2:
The slot-foot mechanism provides dynamic adjustability, allowing cabinets to be positioned at various locations along the rails and easily repositioned if needed. This dynamic capability maintains versatility while the rails themselves remain simple, standardized components for easy manufacture.
Data Source
AI summary
The present invention concerns a railway power car comprising: A body (12) extending in a longitudinal direction (X) and defining a technical room (22); and cabinets (15) accommodated in the technical room.The power car comprises at least two rails (28) disposed on the floor, each of said rails extending in the longitudinal direction, an upper part (42) of each of said rails forming a first means of joining with a cabinet;each cabinet comprises at least one foot (56), said or each foot comprising a second means of joining (60, 62) capable of mating with the first means of joining of one of said rails,each first means of joining and each second means of joining being configured so that each cabinet can be fastened to said corresponding rail at an infinite number of positions along said rail.