Traveling rail detection system with a multi-axis adjustment of detection device

A rail detection system, comprising:

• a traveling mechanism, traveling along a rail to transport a detection device to a vicinity of a preliminary-positioned position to be detected for preparing detection operations;
• a horizontal moving mechanism, connected with the traveling mechanism, wherein the traveling mechanism drives the horizontal moving mechanism to travel, and after the traveling mechanism stops at the vicinity of the position to be detected, the horizontal moving mechanism moves parallel to an extension direction of the rail to accurately move the detection device to a position directly above a precisely-positioned position to be detected;
• a vertical lifting mechanism, connected with the horizontal moving mechanism, wherein the vertical lifting mechanism is provided with the detection device, and the vertical lifting mechanism lifts vertically to drive the detection device to lift up and down;
• an aligning mechanism, connected with the detection device and comprising a force-bearing mechanism and a follow-up mechanism, wherein the force-bearing mechanism is configured to generate a force along a direction perpendicular to the extension direction of the rail when being in a non-aligned position, and under the condition of being forced, the follow-up mechanism disposed between the vertical lifting mechanism and the horizontal moving mechanism makes an adaptive adjustment movement along the direction perpendicular to the extension direction of the rail so that the detection device is aligned with a center of the rail.