A track maintenance machine for excavating ballast bed material bed material of a track

摘要

The discharge chain (6) is endless, height-adjustable and rotatable in a rotation plane running at an angle to the machine longitudinal direction. Between the rail undercarriage (2) is arranged a ballast clearance device (18), with a clearance components (17) adjustable as to height and crossways by means of a drive. The ballast clearance device is formed as a sleeper compartment clearance unit with a component which is plate-shaped and penetrates between the sleepers. It is height-adjustable to a height of at least 65 cm in relation to a support frame on the machine frame.