SYSTEM FOR THE TESTING OF TRACTION AND COMPRESSION FATIGUE LOADS ON THE FASTENING ELEMENTS OF A RAILWAY TRACK WITHIN THE SAME LOAD CYCLE

Patent number:

ES2665577

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System for testing tensile and compressive fatigue loads on the fastening elements of a railway track within the same load cycle, comprising: - a rail section (21, 31) with an opening along the longitudinal axis of its head (22, 32), which in turn has a cut portion (23); - sleepers and fasteners characteristic of a railway track: - a cylindrical bar (24. 44) located across the opening of the head (22. 32), of such a length that the ends of the cylindrical bar (24. 44) are located outside the opening, and such that part of the the cylindrical bar (24. 44) is visible due to the cut portion (23); - a fork (25, 45) comprising a hole, such that the cylindrical bar (24. 44) is placed through said hole: the system being configured to be coupled to a testing machine, by means of an applicator (26) thus allowing the application of tensile and compression forces with different degrees of inclination on the cylindrical bar (24, 44). and therefore, on the rail (21. 31), the sleepers and the fastening elements of the railway track. (Machine-translation by Google Translate, not legally binding)

Countries:
Spain
Regions:
Cantabria
Centers:
UNIVERSIDAD DE CANTABRIA
Other entities:
Sectors:
Automotive & Rail
Subsectors:
Measurement, G01N3/32
TRL Level:
TRL 3 – experimental proof of concept
BRL Level:
PDF Link:
Download here
Video Link:
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Sustainable Development Goal:
Applications

Sistema para el ensayo de cargas de fatiga de tracción y compresión sobre los elementos de sujeción de una vía ferroviaria dentro del mismo ciclo de carga. El sistema presenta la ventaja de adaptarse a cualquier rango de variación de cargas, siendo este rango dependiente del tipo de sujeción a evaluar. El sistema además aporta una mayor estabilidad de los utillajes durante el ensayo de cargas repetidas, que se traduce en una mayor seguridad para el técnico y el equipamiento. Por otro lado, al no existir en el sistema de la invención un muelle, no son necesarios los elementos accesorios susceptibles de fallo. Finalmente, el sistema de la invención es económico debido a su adaptabilidad a cualquier tipo de máquina de ensayos, sin tener que contar con la inclusión de un muelle de características peculiares en cada caso (o en cada familia de casos).

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