Track maintenance machine and method for tamping a track

2:

• The track maintenance machine according to claim 1, wherein the tamping unit is arranged for displacement relative to the camera systems by means of displacement drives and that the output means is equipped for displaying a current position of the tamping unit.

3:

• The track maintenance machine according to claim 1, wherein the camera systems have diagonally downwards aligned camera axes and that a computer unit is set up for rectifying the distortion of the recorded image sections.

4:

• The track maintenance machine according to claim 1, wherein each camera system comprises at least two cameras arranged next to each other in a transverse machine direction for recording part image sections, that the part image sections of the two cameras arranged next to each other overlap, and that the output means is equipped for merging all part image sections.

5:

• The track maintenance machine according to claim 1, wherein a lighting means with downwardly directed light beams for generating a light marking, in particular in the form of a lighting pattern, is arranged in the recorded surface areas of the track.

6:

• The track maintenance machine according to claim 1, wherein the camera systems are equipped for recording infrared light and that at least one infrared light source is arranged for lighting the surface areas of the track to be recorded.

7:

• The track maintenance machine according to claim 1, wherein a sensor means for recording sleeper positions is arranged upstream of the first camera system in working direction, and that the output means in particular is coupled with the sensor means for displaying the recorded sleeper positions in the merged image.

8:

• The track maintenance machine according to claim 1, wherein at least one camera is arranged laterally next to the tamping unit for recording a vertical position of the tamping tools.

9:

• A method for operating a track maintenance machine according to claim 1, wherein the merged image is displayed to an operator in real time with the aid of the output means and that the tamping unit is positioned relative to the track using the merged image.

10:

• The method according to claim 9, wherein a current position of the tamping unit is recorded and that penetration points of the tamping tools resulting from this are displayed in the merged image.

11:

• The method according to claim 9, wherein a light marking is generated on the recorded surface areas of the track with the aid of a lighting means.

12:

• The method according to claim 11, wherein a lighting pattern is generated with the aid of the lighting means and that the image sections are merged by matching the lighting pattern.

13:

• The method according to claim 9, wherein a three-dimensional illustration of the recorded surface areas of the track is calculated from recorded image data of the camera systems.

14:

• The method according to claim 9, wherein sleeper positions are recorded with the aid of a sensor means during a forward movement of the track maintenance machine and that the sleeper positions are displayed to the operator in the merged image.

15:

• The method according to claim 9 tamping positions are stipulated by means of an assistance system and that the suggested tamping positions are displayed to the operator in the merged image.