关键词: 钢丝绳, 双折线式多层卷绕, 失效机理, 断丝

Abstract:

A 6×36 P.WS-IWRC facial contacted wire rope was taken as the research object to explore the damage failure mechanism of wire ropes in parallel grooved multi-layer winding by the damage and the failure behavior test was carried out on a self-made multi-layer winding wire rope wear test apparatus. The results show that, in parallel grooved multi-layer winding, the wear and deformation of outer layer wires caused by the wire rope squeezing and frictional sliding each other was the main reason of wire breaking. The damage value of the wire rope is related closely to winding position in the drum, and the damage during the wire rope winding in crossover zone at the end of each-layer drum is the most serious. Furthermore, the fracture behavior of outer layer wires is related to the white layer structure which is on the surface of the wire for analyzing the fracture mechanism of outer layer wires in the rope.

Key words: wire rope, parallel grooved multi-layer winding, failure mechanism, broken wire