METHOD OF TRACK LEVELLING, TRACK MACHINE AND DEVICE TO CONTROL TRACK LEVELLING Russian patent published in 1997 - IPC

FIELD: railway transport; permanent ways, track maintainers. SUBSTANCE: machine has frame resting on running bogies with following devices mounted on frame: devices for measuring track deflection in plan and/or longitudinal profile and/or elevation of one rail relative to other, device to control track levelling connected with measuring devices and levelling device. Device to control track levelling has computing unit made for determining displacements of track relative to fixed coordinates determining position of track in space, track pickup, a priori information entry unit and comparison unit. With machine moving, pickups continually measure deflection of track in plan and/or longitudinal profile on a definite measuring base and/or elevation of one rail relative to the other. In process of track levelling deflection of track in plane and/or longitudinal profile on definite measuring base and/or elevation of one rail relative to the other are measured additionally and track is lined according to results of comparing of additionally measured values with corresponding program values. EFFECT: enlarged operating capabilities. 4 cl, 2 dwg