Installation for cleaning a ballast bed

Abstract

An installation for cleaning a ballast bed contains a first machine frame and a second machine frame coupled to the former, each being equipped with two vertically adjustable crawler tracks and two on-track undercarriages. A receiving unit of a clearing chain for picking up ballast is disposed between the crawler tracks of the first machine frame. A ballast discharge device is arranged between the two crawler tracks of the second machine frame, the latter having a screening installation.

1 . (canceled) 
     
     
         2 . An installation for cleaning a ballast bed, comprising:
 vertically adjustable crawler tracks;   on-track undercarriages;   a clearing chain for picking up ballast;   a screening installation having a ballast discharge device;   a first machine frame having a front frame end and a rear frame end;   a second machine frame having a front frame end and a rear frame end, said second machine frame coupled to said first machine frame;   two of said vertically adjustable crawler tracks and two of said on-track undercarriages associated in each case with said first machine frame and said second machine frame, one of said two on-track undercarriages disposed in each case at said front frame end and at said rear frame end of said first and second machine frames;   said clearing chain having a receiving unit disposed between said two vertically adjustable crawler tracks of said first machine frame; and   said ballast discharge device disposed between said two vertically adjustable crawler tracks of said second machine frame.