Rail Vehicle Carrying Structure Shim Insertion
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Solution Overview
Problem
Existing methods for compensating wheel wear in rail vehicles require expensive infrastructure and cannot be performed on uneven or ballasted tracks, posing safety risks and increasing assembly effort.
Innovation Solution
A method where a lifting device supports the car body, allowing shims to be inserted between the coupling element and the supporting structure, enabling attachment without complex infrastructure and on various subsoil conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If stationary or mobile lifting systems are used to raise the car body for inserting shims, then the coupling element can be relieved of force and shims can be inserted, but expensive infrastructure and solid subsoil are required
Solution Approach 1:
The support element acts as an intermediary between the lifting device and the subsoil, transferring the lifting forces through the coupling element without requiring direct support from the subsoil. This enables the lifting operation to proceed even on ballasted track sections where the subsoil cannot withstand the loads.
Solution Approach 2:
The coupling element itself serves as the load-bearing component during the lifting operation, supporting the car body weight while the shim is being inserted. This eliminates the need for external infrastructure to support the lifting loads.
2Adaptability or versatility
If the lifting device is supported on the subsoil, then the lifting operation can be performed, but a solid and smooth subsoil is necessary which can withstand the loads
Solution Approach 1:
The support element serves as a mediator that transfers the lifting forces from the lifting device through the coupling element, eliminating the requirement for the subsoil to directly bear the lifting loads. This enables reliable lifting operations on ballasted track sections and other locations with weak subsoil.
3Ease of operation
If the car body is raised using lifting systems supported on the ground, then the coupling element is relieved of force, but the weight of the car body is transferred directly to the subsoil
Solution Approach 1:
The support element acts as an intermediary that redirects the car body weight through the coupling element during the lifting operation, preventing direct transfer of the full car body weight to the subsoil. This protects the subsoil from harmful overload effects while enabling easy shim insertion.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables effortless coupling element attachment at any location, reducing safety risks and assembly effort, and eliminating the need for expensive lifting systems and solid subsoil support.
Implementation Method 1
A lifting device (6) is supported on the support element (4), by means of which the car body (1) is raised in relation to the ground
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
A carrying structure of a rail vehicle upon which a carriage body is supported by coupling elements, where at least one coupling element is connected to the carrying structure via a positive and/or non-positive connection, and where at least a part of the carrying structure below or above the connection or at least one surface upwardly delimiting the coupling element is configured as a supporting element such that the coupling element can be attached at any desired location on the rail vehicle with little effort.