FLAW DETECTOR OF COMBINED NONCONTACT MAGNETIC AND ULTRASONIC TESTING OF RAIL TRACK Russian patent published in 2016 - IPC B61K9/08 

FIELD: measurement technology.

SUBSTANCE: invention relates to nondestructive inspection of rail track. Tracking system is made in the form of suspended centering beam fitted on two parallelogram mechanisms, at the ends of which there are two power cylinders for lifting and lowering search system which contains search beam connected with the help of two forks with power cylinders, and on search beam there are mounted three ultrasonic flaw detectors and two permanent magnets of tracking system. Permanent magnets are arranged between first and second, as well as between the second and third frames of ultrasonic flaw detectors. Each frame of ultrasonic flow detector consists of a base fixed on search beam by means of two pairs of articulated arms, resting on top, at maximum lowering base in the adjusting bolts fixed on search beam. Each base is connected with two vertical rods, upper end of which is connected to upper end of tension spring, and the lower end of tension spring is fixed on search beam. At the ends of extreme frames of ultrasonic flow detectors are fixed magnetic finders. Besides, locking mechanism of search system comprises two pneumatic cylinder connected with hooks, engaging with search beam in lifted position.

EFFECT: as a result, accurate control of rail track and operating reliability of tracking and search systems flaw detector are increasing.

1 cl, 4 dwg