A MACHINE AND METHOD OF DETECTING THE SLEEPER POSITION OF A TRACK

摘要

For detecting the position of sleepers (5) in a track (7), a scanning device (13) with contact-free operation is provided in connection with an odometer (14) for registering a distance (s) travelled by a machine. The scanning device (13) is designed as a distance measuring device (16) for contact-free registratio n of vertical distance measurement values (d) between the machine and track. A control unit connected to the distance measuring device (16) is designed f or continuously and sequentially subdividing the path-correlated measuring span in each case into a sleeper detection section X, comprising distance measurement values (d) differing only slightly from one another, and an adjacent ballast detection section Y associated with a ballast region situat ed between the sleepers (5). The ballast detection section Y comprises a sequence of abruptly fluctuating distance measurement values (d). By detecting the sleeper position, a tamping unit can be centered automatically .