Method for determining vertical and lateral position faults of a track and track maintenance machine
View Patent ↗A method for determining vertical and lateral position faults of a track employs a track position measuring system having a common reference base formed of a single measuring chord disposed centrally between the rails and extending in the longitudinal direction of the machine. Two sensors are disposed on a central track position measuring unit for determining a longitudinal height and for determining a versine. The sensors each contact the measuring chord. Each track position measuring unit has two laser scanners, which are associated with respective rails, for scanning in a y-axis extending normal to a longitudinal direction of the rails and in a z-axis extending in a vertical direction. A track maintenance machine for carrying out track position corrections is also provided. Thus, a simplification of the track position measuring system with increased accuracy can be achieved.
1. A track maintenance machine for carrying out track position corrections, the track maintenance machine comprising:
on-track undercarriages to be disposed on rails of a track;
a machine frame being movable by said on-track undercarriages and having a track lifting and lining unit;
a track position measuring system including track position measuring units each registering a track position, said track position measuring units following one another in a longitudinal direction of the track maintenance machine; and
a reference base at which all of said track position measuring units are disposed, said reference base being formed of a single measuring chord to be disposed centrally between the rails and extending in the longitudinal direction of the track maintenance machine; and
said track position measuring units including a central track position measuring unit having two track tracing rollers and a measuring base interconnecting said two track tracing rollers;
said two track tracing rollers being adjustable in height together with said measuring base and a measuring transducer disposed on said central track position measuring unit relative to said track lifting and lining unit and relative to a vertical.
2. The track maintenance machine according to claim 1 , wherein each of said track position measuring units has two laser scanners each being associated with a respective one of the rails for rail scanning in a horizontal y-axis extending perpendicularly to a longitudinal direction of the rail and in a z-axis extending in vertical direction.
3. The track maintenance machine according to claim 1 , wherein:
said track position measuring units include two outer track position measuring units and said central track position measuring unit located between said two outer track position measuring units; and
said measuring transducer contacts said measuring chord for determining both a longitudinal level and a versine.
4. The track maintenance machine according to claim 1 , which further comprises a drive, said measuring base together with said track tracing rollers and said measuring transducer being mounted for transverse displacement by said drive perpendicularly to the longitudinal direction of the track maintenance machine relative to said track lifting and lining unit.
5. The track maintenance machine according to claim 1 , wherein:
said track position measuring units include two outer track position measuring units and said central track position measuring unit; and
an inclinometer is disposed on said central track position measuring unit for detecting a transverse level of the track.