Machine and method for renovating a track
AssigneeMatisa Materiel Industriel S.A.
InventorJörg Ganz
Life of this patent
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Abstract
A machine for renovating a track includes the following: a transverse chain segment of an excavating chain is designed shorter than a crosstie length of new crossties. A ballast plow is disposed relative to a longitudinal machine axis between the transverse chain segment of the excavating chain and the device for placing the new crossties. A width—extending normal to the longitudinal machine axis—of the ballast plow is designed greater than the crosstie length of the new crossties.
Claims6
A machine for renovating a track composed of rails and crossties and resting on a ballast bed, the machine comprising:
- devices for removing old crossties and placing new crossties, the new crossties having a given crosstie length;
- an endless excavating chain with a transverse chain segment provided for taking up ballast, said transverse chain segment having a given length that is shorter than said given crosstie length of the new crossties;
- and
- a ballast plow configured for creating a graded support surface for placement of the new crossties, said ballast plow being disposed, with respect to a longitudinal machine axis, between said transverse chain segment of said excavating chain and said device for placing the new crossties, and said ballast plow having a width, extending perpendicularly to the longitudinal machine axis, greater than said given crosstie length of the new crossties.
A method for renovating a track with a machine having an excavating chain and a ballast plow, the method which comprises:
- removing old crossties and thereby exposing a ballast of a track bed underneath the crossties;
- partially picking up the ballast exposed by the removal of the old crossties with the excavating chain while grading a remaining ballast, to thereby create a support surface for placing new crossties;
- thereby picking up only a portion of the ballast to be removed for creating the support surface with the excavating chain, such that two ballast banks remain, spaced from one another in a transverse direction of the machine;
- and
- shifting the ballast banks with a ballast plow into adjoining shoulder regions of the track bed for creating a final support surface.
Dependencies are inferred from the claim text.