Method and machine for lowering a track
AssigneeFranz Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H.
InventorsJosef Theurer, Bernhard Lichtberger
Life of this patent
Estimating the term…
Abstract
For the controlled lowering of a track, a longitudinal inclination of the track is determined at a rear tracing point of a measuring system and stored. For a length reaching back at least 10 meters, a current vertical profile is formed, and a rear compensation straight line is calculated which is superimposed upon the vertical profile and renders a target track position. The rear tracing point is guided by calculation along the rear compensation straight line, so that a compensation value for the position of the measuring chord ensues at a middle tracing point positioned between the rear tracing point and a front tracing point.
Claims8
A method for the controlled lowering of a track, which comprises the following method steps:
- setting the track in transverse vibrations with the aid of dynamic striking forces and loading the track with a vertical static load, and controlling a settlement defining the lowering of the track with a measuring system for tracing a track position, the measuring system having a measuring chord extending in a longitudinal direction of the machine and having tracing points configured to roll on the track and including a rear tracing point and a front tracing point, with reference to a working direction;
- detecting and storing a longitudinal inclination of the track at the rear tracing point in connection with a distance measurement;
- from the stored values for the longitudinal inclination and the distance measurement, forming a current vertical profile of the track for a length of track reaching back at least 10 meters from the rear tracing point with regard to the working direction, and calculating a rear compensation straight line that is superimposed upon the vertical profile and renders a target track position;
- guiding the rear tracing point by calculation along the rear compensation straight line so that a compensation value for the position of the measuring chord ensues at a middle tracing point positioned between the rear tracing point and the front tracing point.
A machine for the controlled lowering of a track, comprising:
- a stabilizing unit disposed between on-track undercarriages and configured to be form-fittingly applied to the track and producing dynamic striking forces;
- a measuring system for detecting a longitudinal inclination of the track, said measuring system including a front tracing point and rear tracing point, with regard to a working direction, each designed to roll on the track, a middle tracing point positioned between the front and rear tracing points, and an odometer;
- a longitudinal pendulum for detecting the longitudinal inclination of the track disposed on a rear on-track undercarriage, relative to said stabilizing unit;
- a control device configured to store the longitudinal inclination and to form a current vertical profile and configured to determine, by calculation, a rear compensation straight line that is superimposed upon a current vertical profile and renders a target position.
Dependencies are inferred from the claim text.