A tamping machine for a works train for laying, repairing or replacing a rail track has a first truck and a second truck that are situated longitudinally at a distance from one another, a machine frame and a tamping shuttle, the tamping shuttle having a shuttle frame and one or more tamping units that are vertically movable with respect to the shuttle frame, the shuttle frame being linked to the machine frame by longitudinal guide means that allow a relative back-and-forth movement, between two end-of-travel positions, between the shuttle frame and the machine frame in a longitudinal direction of the tamping machine. The machine frame is entirely supported by the shuttle frame, which is carried by the first truck (20) and the second truck.

A railway works machine comprises a machine chassis and a works shuttle, the machine chassis having two opposite longitudinal end portions and a middle portion connecting the opposite longitudinal end portions, a volume being created underneath the middle portion of the machine chassis to house at least part of the works shuttle. The shuttle chassis is able to move with respect to the machine chassis back and forth between two end-of-travel positions. A longitudinal locking system allows the machine chassis to be secured to the shuttle chassis in a position for travel. The longitudinal locking system comprises a first locking device locking together a first of the two longitudinal end portions and the shuttle chassis and a second locking device locking together the shuttle chassis and a second of the two longitudinal end portions.

The invention relates to a control and operating system for working on a track with a track maintenance machine, with at least one machine frame movable on rail-based running gears, comprising working devices , a sensor and measuring system for recording the position data of the working devices and for detecting objects of the track, in particular sleepers, rails, and, as the case may be, obstacles, and further comprising an arrangement of cameras for optical detection of the working devices and the working areas. It is provided that a control station without free visual range of a respective working device is set up at a location inside or outside the track maintenance machine and that the control station comprises a display device for virtual operation, control, and/or monitoring of the track maintenance machine. This achieves greater flexibility during working operation, an extension of the controlling and operating options, and a significant increase in safety and ergonomic design at the workstation.

The invention relates to a control and operating system for working on a track with a track maintenance machine, with at least one machine frame movable on rail-based running gears, comprising working devices , a sensor and measuring system for recording the position data of the working devices and for detecting objects of the track, in particular sleepers, rails, and, as the case may be, obstacles, and further comprising an arrangement of cameras for optical detection of the working devices and the working areas. It is provided that a control station without free visual range of a respective working device is set up at a location inside or outside the track maintenance machine and that the control station comprises a display device for virtual operation, control, and/or monitoring of the track maintenance machine. This achieves greater flexibility during working operation, an extension of the controlling and operating options, and a significant increase in safety and ergonomic design at the workstation.

A lift machine includes a base having a first end and a second end, a first assembly, and a second assembly. The first end has first and second pivot points defining a first lateral axis. The second end has third and fourth pivot points defining a second lateral axis. The first assembly is pivotably coupled to the first and second pivot points. The first assembly extends away from the base in a first direction such that first and second tractive elements are longitudinally offset from the first lateral axis and spaced from the first end of the base. The second assembly is pivotably coupled to the third and fourth pivot points. The second assembly extends away from the base in a second direction such that third and fourth tractive elements are longitudinally offset from the second lateral axis and spaced from the second end of the base.

A lift machine includes a base having a first end and a second end, a first assembly, and a second assembly. The first end has first and second pivot points defining a first lateral axis. The second end has third and fourth pivot points defining a second lateral axis. The first assembly is pivotably coupled to the first and second pivot points. The first assembly extends away from the base in a first direction such that first and second tractive elements are longitudinally offset from the first lateral axis and spaced from the first end of the base. The second assembly is pivotably coupled to the third and fourth pivot points. The second assembly extends away from the base in a second direction such that third and fourth tractive elements are longitudinally offset from the second lateral axis and spaced from the second end of the base.

A lift device includes a chassis, a boom pivotally coupled to the chassis, a first leveling assembly pivotally coupled to a first end of the chassis, a second leveling assembly pivotally coupled to an opposing second end of the chassis, and a control system. The first leveling assembly includes a first pair of actuators positioned to facilitate a first pitch adjustment and a first roll adjustment of the first end of the chassis. The second leveling assembly includes a second pair of actuators positioned to facilitate a second pitch adjustment and a second roll adjustment of the opposing second end of the chassis. The control system is configured to (i) actively control the first pair of actuators and the second pair of actuators during a first mode of operation, and (ii) actively control the first pair of actuators and facilitate passive control of the second pair of actuators during a second mode of operation.

A method and device for compacting the ballast bed of a track, especially in the region of a switch, comprising a switch tamping machine (1), which is fitted with a tamping unit (4), a lifting and lining device (2) comprising at least one pair of roller pincers (6) and at least one lifting hook (7) for lining the track position, and which is guided in a longitudinally displaceable manner on the machine frame (2) in the longitudinal direction of the machine. In order to provide advantageous lining conditions, it is proposed that a switch component measuring system (3), which is provided upstream of the lifting and lining device (2) in the working direction (C), is provided for the position-dependent measurement of the position of the switch components.

A method and device for compacting the ballast bed of a track, especially in the region of a switch, comprising a switch tamping machine (1), which is fitted with a tamping unit (4), a lifting and lining device (2) comprising at least one pair of roller pincers (6) and at least one lifting hook (7) for lining the track position, and which is guided in a longitudinally displaceable manner on the machine frame (2) in the longitudinal direction of the machine. In order to provide advantageous lining conditions, it is proposed that a switch component measuring system (3), which is provided upstream of the lifting and lining device (2) in the working direction (C), is provided for the position-dependent measurement of the position of the switch components.

A tamping assembly for a track tamping machine comprises a carrier guided in a height-adjustable manner with respect to a tamping assembly frame along guides, on which carrier pairs of tamping tools formed as oscillating levers are pivotably mounted, the tamping tools of which can be oppositely driven by an oscillation drive and can be hydraulically adjusted relative to one another, said tamping tools being intended for introduction into a ballast bed. To reduce the number of required drives, several of the tamping tools are combined into tamping units with a compartment between them engaging around a rail and are mechanically connected to each other, and each oscillating lever is associated with a tamping unit and an adjusting drive, wherein the guides, especially the guide rods, act directly on the respective carrier and run in fixed guides of the tamping assembly frame.