RT Journal Article
T1 New support roller profile design for railway wheel re-profiling process by under-floor lathes with a single cutting tool
A1 Corral Abad, Eduardo
A1 Meneses Alonso, Jesús
A1 Gómez García, María Jesús
A1 Castejón Sisamón, Cristina
A1 García Prada, Juan Carlos
AB The wheel re-profiling is an important part of railway wheelset maintenance. Researchers and railwayoperators have been very concerned about how to minimize the loss of time during wheel re-profilingwithout decreasing safety. Avoiding wheelset disassembly means considerable time savings, whilereducing wheel damage during operation. Underfloor wheel lathes are the most appropriate tool toachieve this double objective, and therefore the most used nowadays. Multi-cut tool lathes have thedisadvantage of being extremely expensive. On the other hand, with single tool lathes, re-profilingis not smooth or safe enough when current convex profile support rollers are used. It is well knownby the companies that during reprofiling the wheel suffers impacts/damaged. In this article, amethodology to optimize the profile of the support rollers used in underfloor single tool lathes forrailway wheel re-profiling is proposed. This novel profile design will minimize damage and increase thesafety of such lathes, since it proposes a greater smoothness in the process. Simulations of re-profilingprocess have been carried out by the finite element method showing that the designed roller profilereduces drastically the impact/damage during the operation. The impact generated between there-profiling wheel and the rollers is avoided. Profile-optimized support rollers have been used in a realunderfloor wheel lathe, showing good results.
PB Springer Science and Business Media LLC
SN 2045-2322
YR 2022
FD 2022-01-07
LK https://hdl.handle.net/10016/35492
UL https://hdl.handle.net/10016/35492
LA eng
NO This work was financially supported by the Spanish Government through the MCYT project 395 “RETOS2015: sistema de monitorización integral de conjuntos mecánicos críticos para la mejora del mantenimiento en el transporte-maqstatus.”
DS e-Archivo
RD 27 jul. 2024