Mobile ballast cleaning apparatus

Details Mobile ballast cleaning apparatus Mobile ballast cleaning apparatus

1987-02-12

1989-01-24

Johnson, Richard J.

Railways

Track layers

171 16, 37107, E01B 2700

Patent

active

047994304

ABSTRACT:
A mobile ballast cleaning apparatus comprises a first and a second work vehicle. A track lifting device and a vertically adjustable ballast excavating and conveying chain are mounted on the first work vehicle, and a ballast screening installation for separating waste from cleaned ballast and a waste conveyor means for removing the waste are mounted on the second work vehicle. The apparatus further comprises a cleaned ballast conveying and redistributing installation including a conveyor band mounted on the second vehicle for receiving the cleaned ballast from the ballast screening installation, a first cleaned ballast conveyor arranged to convey the cleaned ballast to an output end adjacent a first ballast redistributing outlet immediately rearwardly of the ballast excavating site, and a second cleaned ballast conveyor having an input end adjacent the output end of the first ballast conveyor and leading to a second ballast redistributing outlet arranged rearwardly of the rear undercarriage of the first work vehicle. A ballast flow deflector is mounted between the output end of the first cleaned ballast conveyor and the input end of the second cleaned ballast conveyor, and a drive selectively positions the ballast flow deflector for directing the cleaned ballast to the first outlet for continuously forming a first layer of cleaned ballast as the mobile apparatus advances in the operating direction and/or to the second outlet for forming a second layer of cleaned ballast over the first layer.

REFERENCES:
patent: 1418402 (1922-06-01), Scott
patent: 4257331 (1981-03-01), Theurer et al.
patent: 4479439 (1984-10-01), Theurer et al.
patent: 4538687 (1985-09-01), Theurer et al.
patent: 4576538 (1986-03-01), Theurer et al.
patent: 4614238 (1986-09-01), Theurer et al.

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