METHOD OF, DEVICE FOR, AND MACHINE FOR TRACK MAINTENANCE Russian patent published in 2004 - IPC

FIELD: railway transport; permanent way.

SUBSTANCE: invention relates to method and devices used at construction and repair of rail tracks. According to proposed method, before each cycle of track maintenance, deflection of rail lines in plan and sag of rail lines in longitudinal profile and position of rail lines in level in zone of maintenance and on corrected track are determined, and designed values of shift and lift of rail lines with due account of said measurements are corrected after which rail track is subjected to maintenance. Proposed machine contains frame resting on running bogies, track maintenance device mounted on frame and including lifting-and-lining device, lifting-and-lining control device and measuring device with run meter, measuring bogies and longitudinal profile rail line sag transmitters, level transmitters in-plan, rail deflection transmitter and gradient transmitter arranged in zone of corrected track and provided with possibility of measurement of microgradient in longitudinal profile. Lifting-and-lining control device is essentially computer connected with above indicated transmitters.

EFFECT: improved accuracy of track maintenance owing to exclusion of errors in working out of preset shifts (lifts) of track by actuating mechanism, relaxation of track and determination of track position after maintenance of track by device or machine.

4 cl, 2 dwg