Mobile track leveling, lining and tamping machine

Details Mobile track leveling, lining and tamping machine Mobile track leveling, lining and tamping machine

1990-01-24

1991-04-16

Oberleitner, Robert J.

Railways

Track layers

Tamper

104 71, 104 72, E01B 2711

Patent

active

050073494

ABSTRACT:
A mobile track leveling, lining and tamping machine comprises four ballast tamping units mounted between the undercarriages of the machine and immediately preceding the rear undercarriage in the operating direction. The ballast tamping units are mounted for independent transverse and vertical adjustment with respect to the machine frame by power drives, a respective one of the ballast tamping units being arranged at the gage side and the field side of each rail, and each ballast tamping unit comprising a pair of vibratory tamping tools reciprocable in the direction of the track and immersible in the ballast with a respective one of the ties positioned between the tamping tools. A carrier frame for the four ballast tamping units is pivotal about a substantially vertical axis constituted by a line of intersection between a vertical plane of symmetry extending in the longitudinal direction of the machine and a vertical plane of symmetry extending transversely thereto and passing between the pairs of tamping tools of the four ballast tamping units and a power drive pivots the carrier frame about the vertical axis whereby the pairs of tamping tools may be centered with respect to obliquely positioned ties. A track leveling and lining unit is mounted on the machine between the two undercarriages and immediately preceding the ballast tamping units in the operating direction, and a leveling and lining reference system controls the track leveling and lining unit operation.

REFERENCES:
patent: 3011454 (1961-12-01), Plasser et al.
patent: 3426697 (1969-02-01), Stewart
patent: 3669025 (1972-06-01), Plasser et al.
patent: 3779170 (1973-12-01), Plasser et al.
patent: 4576095 (1986-03-01), Theurer
patent: 4627360 (1986-12-01), Theurer et al.
patent: 4628822 (1988-12-01), Theurer
patent: 4643101 (1987-02-01), Theurer

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