Ballast ballast update machinery

摘要

PURPOSE: To form an operation unit with simple structure and at the same time improve the carry-in of a ballast into a bed by improving a machine for rehabilitating the ballast bed or a bed ballast cleaner. ;CONSTITUTION: A track-lifting unit 26 and a track tamping unit 27 are arranged at the rear of a discharge end part 23 of a ballast-discharging device 20 when viewed from a working direction 8 and is fitted onto a common support frame 31. They can be adjusted and moved relative to a machine frame 7 in the longitudinal direction of a machine via a drive device 39 along with the support frame.;COPYRIGHT: (C)1994,JPO