US 4,450,771 AGranted

Mobile ballast cleaning machine

AssigneeFranz Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H.

InventorsJosef Theurer, Karl Folser

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Abstract

A mobile ballast cleaning machine comprising a frame mounted on two undercarriages for mobility along a track supported on the ballast resting on a subgrade, a ballast excavating means mounted on the frame between the track to expose the subgrade, a ballast screening means arranged on the frame to receive the removed ballast from the ballast excavating means and to discharge cleaned ballast and waste, conveyor band means for carrying away the waste and for redistributing the cleaned ballast, the ballast redistributing conveyor band means having a discharge end and a zone being defined between the ballast excavating means and the discharge end for laying a succession of rigid foam plates on the exposed subgrade, and apparatus for handling the rigid foam plates, the apparatus including a plate receiving and transfer station, an elongated plate conveying path extending from the station to the zone and a plate turning and laying mechanism receiving successive ones of the rigid foam plates from the conveying path and for laying the successive plates in said zone under the track in a position extending transversely to the track.

Claims9

Dependent claims

A mobile ballast cleaning machine comprising

(a) a frame mounted on two undercarriages for mobility along a track supported on the ballast resting on a subgrade,
(b) a ballast excavating means mounted on the frame between the two undercarriages for removing ballast from under the track to expose the subgrade,
(c) a ballast screening means arranged on the frame to receive the removed ballast from the ballast excavating means and to discharge cleaned ballast and waste,
(d) conveyor band means for carrying away the waste and for redistributing the cleaned ballast, the ballast redistributing conveyor band means having a discharge end and an exposed subgrade zone being defined between the ballast excavating means and the discharge end for laying a succession of rigid foam plates on the exposed subgrade, and
(e) apparatus for handling the rigid foam plates, the apparatus including
(1) a plate receiving and transfer station,
(2) an elongated plate conveying path extending from the station to the zone for conveying successive ones of the plates in a direction substantially parallel to the track, and
(3) a plate turning and laying mechanism in said zone receiving the successive rigid foam plates from the conveying path, for turning the plates and for laying the turned plates successively in said zone under the track in a position extending transversely to the track.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 06/343,527Filed 29 Jan 1982
Priority: AT 1006/814 Mar 1981
Granted: 29 May 1984
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

E01B 37/00
Making, maintaining, renewing, or taking-up the ballastway or the track, not provided
E01B 27/10
Renewing or cleaning the ballast in situ, with or without concurrent work on the track: without taking-up track
E01B 2204/01
Characteristics of the track and its foundations: elastic layers other than rail-pads, e.g. sleeper-shoes, bituconcrete
E01B 2204/05
Characteristics of the track and its foundations: use of geotextiles