| 摘要 |
It comprises a rigid frame (10), connected to the chassis of a railway vehicle by lifting means for the light running of the vehicle and at least one polishing unit (11, 12). Each polishing unit (11, 12) is installed on a support (13) in such a way that it may be displaced linearly in order to move the wheel (11) towards or away from the surface of the rail (1, 2) to be polished. The axis of the wheel (11) is located in a plane perpendicular to the longitudinal axis of the rail (1, 2) but does not intersect the latter, so that the line of contact between the wheel (11) and the surface of the rail (1, 2) is contained within a plane perpendicular to the longitudinal axis of the rail. The support (13) is installed on the frame (10) with translation means (16) enabling it to be displaced transversely in relation to the frame (10). The support (13) comprises at least one bearing roller (17) and bearing means (18), connecting this support (13) to the frame (10) and tending to press this bearing roller (17) against one of the flanks of the rail (1, 2) in the immediate vicinity of the polishing unit (11, 12). …<IMAGE>… |
