Trolley apparatus for measuring track irregularity of versine-type

This is a Versine trolley type track fault detection system for detecting a track fault by installing each sensor on a trolley to measure the railway track's leveling, directional fault, gauge fault, rail longitudinal slope, cant, The measurement time can be shortened by half at the same time by measuring both the left and right rails of the left and right rails and the misalignment of the left and right rails and even if the rail is twisted by moving freely within a certain range in the left and right measurement frames There is provided a trolley type track fault detecting apparatus capable of always bringing the front and rear trolley wheels of the left and right measuring frames in close contact with the rails.