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Ballast cleaning machine

Imported: 24 Feb '17 | Published: 06 Jan '04

Josef Theurer, Herbert Wörgötter

USPTO - Utility Patents

Abstract

A ballast cleaning machine comprises a machine frame supported on the track by undercarriages for movement in an operating direction. Two vertically and laterally adjustable endless ballast excavating chains are sequentially arranged in a longitudinal direction for excavating ballast from the ballast bed, and a track lifting device mounted on the machine frame. A first conveyor arrangement conveys the ballast excavated by the first endless ballast excavating chain to a first screening installation, a second conveyor arrangement conveys the ballast excavated by the second endless ballast excavating chain to a second screening installation, and a third conveyor arrangement distributes the cleaned ballast to the ballast bed.

Description

BRIEF DESCRIPTION OF THE DRAWING

The above and other objects, features and advantages of the invention will become more apparent from the following detailed description of now preferred embodiments, taken in conjunction with the accompanying drawing wherein

FIG. 1 illustrates a side elevational view of the front part of a ballast cleaning machine according to the present invention; and

FIG. 2 is a like view of the rear part of the ballast cleaning machine.

Claims

1. A ballast cleaning machine for cleaning a ballast bed supporting a track, which comprises

2. The ballast cleaning machine of claim 1, wherein the first screening installation leads the first endless ballast excavating chain in the operating direction while the second screening installation is arranged rearwardly of the second endless ballast excavating chain in the operating direction.

3. The ballast cleaning machine of claim 1, further comprising drives for revolving and for vertically and laterally adjusting each one of the endless ballast excavating chains, a respective operator's cab arranged on the machine frame within view of each endless ballast excavating chain, and a control for the drives arranged in each operator's cab.

4. The ballast cleaning machine of claim 1, wherein one of the undercarriages at an end of the machine frame is displaceable in the longitudinal direction relative to the machine frame.

5. The ballast cleaning machine of claim 1, wherein the machine frame is comprised of two machine frame parts linked together by an articulated coupling, one of the undercarriages supporting both machine frame parts on the track at the articulated coupling, the two endless ballast excavating chains being mounted on the first machine frame part, the displaceable undercarriage supporting an end of the first machine frame part, and the second machine frame part being supported by two undercarriages at their ends.