초록 ▼

A measuring carriage for measuring the undulations and ripples of a worn rail head running surface is guided along the rail head by a pair of guide rollers laterally guiding the carriage along a portion of the gage side of the rail head which is not worn and a plurality of additional guide rollers s

A measuring carriage for measuring the undulations and ripples of a worn rail head running surface is guided along the rail head by a pair of guide rollers laterally guiding the carriage along a portion of the gage side of the rail head which is not worn and a plurality of additional guide rollers selectively engageable with the running surface of the rail head for vertically guiding the measuring carriage along the running surface upon engagement therewith. The additional guide rollers include a pair of inner guide rollers, a pair of outer guide rollers and a pair of intermediate guide rollers spaced from each other in the operating direction. The pair of outer guide rollers defines a rigid measuring reference in the wave length of the longer undulations and they are spaced from each other a distance of 2 m. A respective lateral pair of the inner or intermediate guide rollers is selectively engaged with the running surface to define a rigid measuring reference in the shorter wave length of the ripples and these rollers are spaced from each other at least about 1/6th to ⅛th of the first-mentioned distance. A rail head running surface sensing element is vertically adjustably mounted on the measuring carriage substantially centered between the pairs of guide rollers.

대표청구항 ▼

A mobile apparatus mounted on a railroad track for movement in an operating direction, the track including two rails each having a rail head defining a gage side, a field side and a running surface, the apparatus being arranged for measuring and indicating such running surface irregularities as undu

A mobile apparatus mounted on a railroad track for movement in an operating direction, the track including two rails each having a rail head defining a gage side, a field side and a running surface, the apparatus being arranged for measuring and indicating such running surface irregularities as undulations and ripples, which comprises (a) a frame, (b) a measuring carriage linked to the frame, (c) drive means for vertically adjusting the measuring carriage in relation to the frame and for pressing the carriage against the running surface of the rail head of a respective rail, (d) guide roller means for vertically and laterally guiding the measuring carriage along said rail head, the guide roller means including (1) a pair of guide rollers laterally guiding the measuring carriage along a portion of the gage side of said rail head which is not worn and the guide rollers being spaced from each other in the operating direction, and (2) a plurality of additional guide rollers selectively engageable with the running surface of said rail head for vertically guiding the measuring carriage along the running surface of said rail head upon engagement therewith, the additional guide rollers each having an axis extending substantially parallel and transversely to the railroad track, the additional guide rollers including a pair of inner guide rollers, a pair of outer guide rollers and a pair of intermediately arranged guide rollers spaced from each other in the operating direction, the pair of outer guide rollers defining a rigid measuring reference in the wave length range of longer undulations and being spaced from each other a distance of about two meters, and a respective one of the pairs of the inner or intermediate guide rollers selectively engaged with the running surface defining a rigid measuring reference in the shorter wave length range of ripples and being spaced from each other a selected distance corresponding to at least about one sixth to one eighth of the distance between the outer guide rollers, and (e) a rail head running surface sensing element vertically adjustably mounted on the measuring carriage substantially centered between the pairs of guide rollers.