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AssigneeFranz Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H.
InventorsJosef Theurer, Herbert Woergoetter
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The invention relates to a clearing device (5) provided for removing ballast below a track (4), which clearing device comprises a clearing beam (10) of a clearing chain (11) that can be positioned below the track (4) in a ballast bed (6) and pivoted about a vertical axis of rotation (7). An end (12) of the clearing beam (10) that is distanced from the axis of rotation (7) can be connected by a releasable coupling (13) to a supporting device (14) fastened to the machine frame (1). In order to pivot jointly with the clearing beam (10), the supporting device is fastened to the machine frame (1) via a linkage (16) that is distanced from the coupling (13) and has a pivot axis (15).
A machine for removing ballast underneath a track (4), including a machine frame (1), mobile on the track (4) via on-track undercarriages, and—connected for vertical adjustment to the former—a clearing device (5) which has a cutter bar (10) of an excavating chain (11), the cutter bar being designed for being positioned in a ballast bed (6) underneath the track (4) and pivotable about a vertical rotation axis (7, 31) in an excavation plane (9) over an angle α with respect to a longitudinal direction (8) of the track, wherein an end (12)—spaced from the rotation axis (7, 31)—of the cutter bar (10) can be connected by means of a detachable coupling (13) to a support device (14) fastened to the machine frame (1), wherein, the support device (14) is adjustable relative to the machine frame (1) for continuous support of the cutter bar (10) independently of the angle α.
Dependencies are inferred from the claim text.