A fracture detection
system and method for a
dumbbell pin of a scraper conveyor. The
system comprises a scraper conveyor, a
wireless ranging apparatus (2), a
wireless communication device, a support controller and a monitoring center. The
wireless ranging apparatus (2) is mounted on a ramp plate ledge of a scraper conveyor chute (1), and has a
laser range finder and a reflection target plate (24) for detecting a
relative displacement between any two adjacent chutes. The wireless
communication device realizes communication between the wireless
ranging apparatus (2) and the support controller, and transmits the displacement of the
laser range finder to the support controller in a
wireless transmission manner. The support controller controls an action of the scraper conveyor chute (1). A monitoring center is electrically connected to the support controller, and can perform storage
processing on
relative displacement data of any adjacent chutes. In the method, by taking a
relative displacement value between adjacent chutes as a reference, whether a fracture fault occurs in a
dumbbell pin is judged, the position of the fractured
dumbbell pin can be accurately determined, and a support controller controls a chute action, thereby having a high promotion and usage value.