Installation for the continuous rehabilitation of a ballast bed

An installation for the continuous rehabilitation of a ballast bed resting on a subgrade for supporting a track including two rails, which comprises an elongated machine frame means extending in a longitudinal direction and supported on the track by undercarriages for movement in an operating direction, the machine frame means comprising a machine frame having a rear end in the operating direction supported by a rear one of the undercarriages, and further comprising

• (a) a vertically adjustable ballast excavating device mounted on the machine frame for continuously excavating dirty ballast, the rear undercarriage trailing the ballast excavating device,
• (b) a screening device for cleaning the excavated dirty ballast mounted on the machine frame,
• (c) a storage bin for holding bulk material and arranged rearwardly of the screening device in the operating direction and close to the rear end of the machine frame, the storage bin being mounted on the machine frame ahead of the rear undercarriage and rearwardly of the ballast excavating device in the operating direction,
• (d) a conveyor device mounted on the machine frame for conveying the cleaned excavated ballast from the screening device to the storage bin,
• (1) the storage bin comprising an input opening for delivering bulk material to the bin independently of the conveyor device,
• (e) a discharge device arranged to receive the bulk material from the storage bin and to discharge the received bulk material to the subgrade in front of the rear undercarriage, and
• (f) an operator's cab mounted on the machine frame near the rear end thereof and above the storage bin,
• (1) the operator's cab having a bottom window arranged to permit a free view of the storage bin therebelow.

An installation for the continuous rehabilitation of a ballast bed resting on a subgrade for supporting a track including two rails, which comprises an elongated machine frame means extending in a longitudinal direction and supported on the track by undercarriages for movement in an operating direction, the machine frame means comprising a machine frame having a rear end in the operating direction supported by a rear one of the undercarriages, and further comprising

• (a) a vertically adjustable ballast excavating device mounted on the machine frame for continuously excavating dirty ballast, the rear undercarriage trailing the ballast excavating device,
• (b) a screening device for cleaning the excavated dirty ballast mounted on the machine frame,
• (c) a storage bin for holding bulk material and arranged rearwardly of the screening device in the operating direction and close to the rear end of the machine frame, the storage bin being mounted on the machine frame ahead of the rear undercarriage and rearwardly of the ballast excavating device in the operating direction,
• (d) a conveyor device mounted on the machine frame for conveying the cleaned excavated ballast from the screening device to the storage bin,
• (1) the storage bin comprising an input opening for delivering bulk material to the bin independently of the conveyor device,
• (e) a discharge device arranged to receive the bulk material from the storage bin and to discharge the received bulk material to the subgrade in front of the rear undercarriage,
• (1) the discharge device being comprised of two independently power-driven discharge conveyor bands extending in the longitudinal direction, a respective one of the discharge conveyor bands extending above each one of the track rails, and
• (f) a respective drive for pivoting each one of the discharge conveyor bands about a vertical axis.