Self-tensioning arc steel wire rope structure

The self-tensioning arc steel wire rope structure comprises an arc support, steering wheels are rotationally connected to the two ends of the arc support, a plurality of self-tensioning mechanisms are arranged on the portion, between the steering wheels on the two sides, of the arc support, and each self-tensioning mechanism comprises a guide wheel, a sliding rail and a guide wheel support. The guide wheel is rotatably connected with the guide wheel support, the sliding rail is fixedly connected with the guide wheel support and penetrates through the arc support, and the portion, located between the arc support and the guide wheel support, of the sliding rail is further sleeved with a compression spring. When the steel wire rope is loosened, the guide wheel, the guide wheel support and the sliding rail lose extrusion of the steel wire rope, the pressure spring is bounced off to enable the guide wheel and the guide wheel support to move towards the steel wire rope, and the guide wheel provides tension for the