DEVICE TO STRAIGHTEN RAILWAY TRACK AND METHOD TO STRAIGHTEN RAILWAY TRACK Russian patent published in 2015 - IPC E01B35/00 E01B29/04 

FIELD: measurement equipment.

SUBSTANCE: device to straighten a railway track comprises a frame of a track machine resting upon carriages, a device to measure path travelled, a measurement carriage contacting with rails. The track machine is equipped with straightening and flattening equipment. The measurement carriage comprises a mobile base, with a space position sensor installed on it, a sensor of track machine inclination angle. Sensors and the device of travelled path detection are connected to an on-board computer. The sensor of space position is a laser range finder with an inclinometer installed with forced space orientation onto a support measurement base or a laser scanner with the set reaming angle. The sensor of space position is fixed on a guide element installed at 90 degrees relative to motion direction and is rigidly fixed to the centre of the mobile base of the carriage. The other end of the guide element slides with the head of the rail of the adjacent track. The device of travelled path detection includes a satellite antenna on the roof and a received connected to the on-board computer, an odometer. Prior to the start they measure space coordinates of the adjacent track taken as the measurement base and record them into the on-board computer. In process of works performance they measure positions of the carriage with the help of the laser range finder with the inclinometer relative to the measurement base, compare them with design values, produce a control signal to the straightening and flattening device.

EFFECT: invention provides for high accuracy of track setting into design position.

8 cl, 1 dwg