Ballast cleaning machine with two ballast screening installations

摘要

In a mobile ballast cleaning machine comprising a frame, an arrangement for excavating the ballast and for conveying the excavated ballast, a first vibratory and vertically adjustable ballast screening installation mounted on the frame and having an inlet to receive the conveyed ballast from an output of the ballast excavating and conveying arrangement and to separate the ballast into a cleaned ballast component and a waste component, and conveyors for redistributing the cleaned ballast component and for removing the waste component: a further ballast screening installation mounted on the frame, separate drives for vibrating and for vertically adjusting the further ballast screening installation, and a remote-controllable conveyor arranged selectively to receive the ballast from the ballast excavating and conveying arrangement output and to deliver it to an inlet of the further ballast screening installation.