DEVICE FOR ULTRASONIC INSPECTION OF RAIL TRACKS Russian patent published in 2008 - IPC G01N29/04 

FIELD: physics; measurements.

SUBSTANCE: device can be used for inspecting rail tracks. The essence lies in that the device consists of a chassis on wheels firmly joined to a holder, which is linked to a fixing unit. The fixing unit is movable and is made in the form of a lever, which has at least three selected positions, and fitted with provision for rotation around a horizontal axis, fixed in the case, fitted on bearings with provision for rotation within a 90° limit around the vertical axis, fixed on the said holder. The lever is joined, through a holding unit, to a vertical strut, to which through a rotating mechanism, is joined a suspension mount of converter units with provision for rotating the converter units and roller followers as a single unit around said strut within a ±15° limit about the longitudinal axis of the inspected rail track. Holding the roller followers in the operation position to the lateral edges of the butt end of the inspected rail track is done by a torsion spring put on the said vertical axis, the ends of which are fixed to the said holder and case. The fixing unit of the vertical strut is made with provision for changing the distance between the lever and the suspension mount of the converter units. Displacement of the lever with the vertical strut, rotation mechanism and suspension mount of converter units in the vertical as well as horizontal plane is done on curvilinear trajectories. The technical outcome is the high quality and reliable acoustic contact between the converter units and the roller face of the inspected rail track, increased reliability of centralising the converter units about the longitudinal axis of the rail track and easier transportation and servicing the device.

EFFECT: provision for reliable ultrasonic inspection of rail tracks and easier transportation and servicing the inspection device.

5 cl, 4 dwg