US 4,497,256 AGranted

Mobile track position correction machine

AssigneeFranz Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H.

InventorsJohann Hansmann, Frederick Fawcett

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Abstract

A mobile track leveling machine comprises a pneumatic arrangement for introducing additional ballast into a gap between a track bed and a lifted track, which includes a storage container for the ballast, a vertically adjustable pipe arranged to receive ballast from the storage container and to be immersed in the track bed alongside a longitudinal edge of a respective track tie, the pipe having a tapered end for ready penetration into the track bed and a flattened side defining an outlet for the additional ballast facing the longitudinal tie edge. Compressed air is delivered into the pipe for moving the additional ballast therethrough and out of the outlet. A power drive vertically adjusts the pipe, a stop is arranged on the pipe for engagement with the lifted track to limit the immersion depth thereof, and a power-driven metering device is arranged between the storage container and the pipe for delivering a metered amount of the additional ballast from the container to the pipe, the additional ballast amount being metered by the device in response to the lifting stroke to fill the gap between the track bed and the lifted tie.

A mobile track position correction machine mounted for mobility on a track consisting of two rails fastened to ties supported on a track bed, comprising

(a) a track level adjusting device for lifting the track whereby a gap is created between the track bed and the ties at a respective point of intersection between a respective rail and a respective tie,
(b) a power drive for imparting a lifting stroke to the track level adjusting device,
(c) a track level reference and measuring system controlling the lifting stroke of the device, the system including
(1) a track level measuring device capable of delivering parameters corresponding to the measured track level, a desired track level, and a measurable track level above the desired track level, and
(d) pneumatic arrangement for introducing additional track bed material into the gap, the pneumatic arrangement including
(1) a storage container for the track bed material,
(2) a vertically adjustable pipe arranged to receive track bed material from the storage container and to be immersed in the track bed alongside a longitudinal edge of the respective tie, the pipe having a tapered end for ready penetration into the track bed and a flattened side defining an outlet for the additional track bed material facing the longitudinal tie edge,
(3) means for delivering a blast of compressed air into the pipe for moving the additional track bed material therethrough and out of the outlet,
(4) a power drive for vertically adjusting the pipe,
(5) a stop arranged on the pipe for engagement with the respective rail,
(6) a power-driven metering device arranged between the storage container and the pipe for delivering a metered amount of the additional track bed material from the container to the pipe, the additional track bed material amount being metered by the metering device in response to the parameter corresponding to the desired track level to fill the gap between the track bed and the lifted tie.

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Abstract

Claims21