RAIL VEHICLE HAVING CRANE RAILS FOR A GANTRY CRANE

Abstract

The invention relates to a rail vehicle (1) having a machine frame (2) supported on on-track undercarriages (4), on both sides of which are arrangedin the longitudinal direction (3) of the rail vehiclecrane rails (8) for a mobile gantry crane (11). In this, for lifting or lowering of the gantry crane (11), a crane rail section (12) of the respective crane rail (8) is arranged to be vertically adjustable by a drive (18). In this manner, contrary to the prior art, a higher gantry crane (11) can be used without violating a given clearance profile during transfer travel.

Claims

1. A rail vehicle (1) having a machine frame (2) supported on on-track undercarriages (4), on both sides of which are arrangedin the longitudinal direction (3) of the rail vehiclecrane rails (8) for a mobile gantry crane (11), wherein, for lowering or lifting of the gantry crane (11), a crane rail section (12) of the respective crane rail (8) is arranged to be vertically adjustable by a drive (18).

2. The rail vehicle (1) according to claim 1, wherein the machine frame (2) is upwardly recessed in order to form a work space (6) thereunder.

3. The rail vehicle (1) according to claim 1, wherein the respective crane rail (8) has two vertically adjustable crane rail sections (12) for accommodating a respective crane undercarriage (14).

4. The rail vehicle (1) according to claim 1, wherein the respective drive (18) is configured to be hydraulic.

5. The rail vehicle (1) according to claim 1, wherein one crane undercarriage (14) in each case is lockable by means of a locking device (13) on the vertically adjustable crane rail section (12).

6. The rail vehicle (1) according to claim 1, wherein the particular vertically adjustable crane rail section (12) is designed for locking the gantry crane (11) in a lowered position.

7. The rail vehicle (1) according to claim 1, wherein the respective crane undercarriage (14) is confined in a lowered position by buffers (24).

8. The rail vehicle (1) according to claim 1, wherein a crane rail support (17), a vertical guide (21) and a centering device (20) are arranged for coupling the respective vertically adjustable crane rail section (12) to the machine frame (2).

9. The rail vehicle (1) according to claim 1, wherein the respective vertically adjustable crane rail section (12) has a securing device (22) for locking in the raised position.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The invention will be described by way of example below with reference to the attached figures. There is shown in:

[0018] FIG. 1 a schematic side view of a rail vehicle,

[0019] FIG. 2 a detail view of crane rail section in raised position,

[0020] FIG. 3 a detail view of crane rail section in lowered position, and

[0021] FIG. 4 a detail view of a lowered crane undercarriage and confinement by buffers.

DESCRIPTION OF THE EMBODIMENTS

[0022] A rail vehicle 1 visible in FIG. 1 has an upwardly recessed machine frame 2 which extends in a longitudinal direction 3 of the vehicle and is supported on on-track undercarriages 4 or mobile by means of the latter on a track 5. Located underneath the machine frame 2 and between the on-track undercarriages 4 is a work space 6. The rail vehicle 1 comprises a separate motive drive 15 and a hydraulic system 16.

[0023] The machine frame 2 has, at its longitudinal beams 7 at both sides with regard to the longitudinal direction 3 of the rail vehicle, crane rails 8 for mobility of a gantry crane 11 equipped with griping devices 9 for seizing track panels 10. Situated above the on-track undercarriages 4 are vertically adjustable crane rail sections 12 including locking devices 13 for locking the crane undercarriages 14. The respective locking device 13 comprises, for example, an upwardly pivotable hook which fixates the gantry crane 11 during the lowering or lifting as well as during transfer travel.

[0024] FIG. 2 shows a detail view of the raised crane rail section 12 with on-track undercarriage 4 and machine frame 2. Arranged laterally at the machine frame 2 is a crane rail support 17. Located on the same is a drive 18 consisting of two vertically acting hydraulic cylinders 19, a centering device 20 and a vertical guide 21. The two hydraulic cylinders 19 are in the extended position. At either end, the crane rail section 12 has a safety device 22 including a safety bolt 23.

[0025] FIG. 3 shows a detail view of the crane rail section 12 in lowered position with on-track undercarriage 4 and machine frame 2. The two hydraulic cylinders 19 are in the retracted position, the crane rail section 12 is thus in the lowered position.

[0026] FIG. 4 shows an alternative example of embodiment of the lowerable crane rail section 12. Here, the length of the crane rail section 12 is matched exactly to the length of the crane undercarriage 14. An additional locking device 13 can thus be omitted here, since the crane undercarriage 14 in the lowered position is confined in its movement in the longitudinal direction 3 of the rail vehicle. The not-lowered ends of the crane rails 8 and/or the crane undercarriages 14 have buffers 24.