Railway Detection Device Fixed Transverse Beam Load Cells
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Solution Overview
Problem
Existing railway vehicle detection devices are complex and costly due to their movable transverse beams, which complicate installation and maintenance without ensuring efficient obstacle and derailment detection.
Innovation Solution
A detection device with a fixed transverse beam utilizing load cells to measure forces in both vertical and longitudinal directions, sending trigger signals to the emergency brake circuit when thresholds are exceeded, simplifying the structure and reducing component count.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a movable transverse beam is used to detect obstacles and derailments, then detection capability is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent replaces the mechanical movable beam system with a fixed beam combined with load cells (force sensors). Instead of detecting movement through mechanical degrees of freedom, the system measures forces directly acting on the fixed beam, substituting a complex mechanical system with a simpler sensor-based measurement system.
Solution Approach 2:
The invention changes the detection parameter from positional movement (beam displacement) to force measurement (loads on the beam). By measuring vertical and longitudinal forces on a fixed beam using load cells, the system achieves the same detection capability without requiring the beam to be movable.
2Reliability
If a movable transverse beam with degrees of freedom is used, then obstacle detection is improved, but installation time and manufacturing cost increase
Solution Approach 1:
The patent eliminates the need for complex mechanical mounting arrangements by using a fixed beam that can be simply supported on the bogie. The load cells provide the necessary measurement capability without requiring the beam to be mounted with degrees of freedom, significantly simplifying installation.
3Measurement precision
If multiple sensors and moving parts are used in the detection device, then detection accuracy is improved, but device complexity and cost increase
Solution Approach 1:
The fixed transverse beam serves multiple functions simultaneously: it acts as a structural support element, a force measurement platform for load cells, and a reference structure for detecting both obstacles and derailments. This multi-functionality reduces the need for separate components while maintaining comprehensive detection capability.
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
The solution simplifies the detection device's structure, reduces installation time and costs, while maintaining effective detection of obstacles and derailments, and preventing false activations from snow.
Implementation Method 1
The force detection means comprise at least a first load cell, arranged and configured to measure longitudinal forces on the transverse beam, in a vertical direction perpendicular to the transverse beam
Implementation Method 2
The force detection means comprise a second load cell, arranged and configured to measure vertical forces on the transverse beam, in a longitudinal direction perpendicular to the transverse beam
Implementation Method 3
The transverse beam is connected to the support bracket via a component made of a resilient material
Data Source
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AI summary
The detection device (10) is intended to detect an event chosen between an obstacle on the track and/or a derailment of the railway vehicle, and is intended to be arranged on a leading bogie of a leading car of the railway vehicle. The detection device (10) comprises: - a transverse beam (14) intended to be connected to the leading bogie (12) by means of connection means, and - force detection means (26), arranged and configured to measure a force in at least one direction. The connection means has no degree of freedom, so that the transverse beam (14) is intended to be fixedly connected to the leading bogie, and the force detection means (26) comprise at least one load cell (28, 30) fixedly connected to the transverse beam (14).