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Wheel truing machine
| Глоссарий в железнодорожной технике |
Machine for reprofiling rolling stock wheels. the surfaces of wheels become worn over time varying between months and years depending on the usage and design. reprofiling is required to ensure that the ride of the vehicle continues to be acceptable both from a safety and comfort point of view. if wheel flanges become too sharp, they can force point blades apart and cause a derailment. some machines are designed to permit reprofiling without removing the wheels from the vehicle. the lathe is mounted in the floor of the workshop and the vehicle positioned over it for work to be carried out. the axle end design has to be arranged to allow the wheelset to be turned by the lathe. wheels can be re-profiled by cutting or by milling. cutting seems to be the preferred method for most administrations.
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Acceptable, английский
Derailment, английский
Any time the wheels of a locomotive or wagon come off and remain off the rails.
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Solebar, английский
Main longitudinal structural member of vehicle underframe which forms the extreme edges of the frame. also known in the us as a "side sill".
Waist rail, английский
Longitudinal vehicle body structural member at mid height between floor and cant rail. this is normally the level at which any upper body tapering of the bodyline begins.
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