Steel wire rope and producing method thereof

Abstract

The invention discloses a steel wire rope and a producing method thereof. The steel wire rope is prepared by that strands are wrapped on a central strand through twisting, the strands include an inner strand, a secondary inner strand and an outer strand, a surface contact state is formed between steel wires and between strands in the steel wire rope, the twisting directions of the inner strand and the secondary inner strand wrapped on the central strand are leftward, the lay lengths are 5.9-6.2 times as large as the diameter of a central sub rope, the twisting direction of the outer strand wrapped on the central sub rope is rightward, and the lay length is 6.8-7.1 times as large as the diameter of the steel wire rope. By using the matching of the lay lengths and twisting directions of the rope and the strands, the torques of the inner and outer layers of the steel wire rope are mutually offset, thereby improving the rotating resistance of the steel wire rope; and the steel wire rope is subjected to strand extrusion and rope extrusion, so that the bearing capacity and fatigue resistance of the steel wire rope are improved.

Description

technical field [0001] The invention relates to a steel wire rope and a manufacturing method thereof, in particular to a steel wire rope suitable for high-lift engineering machinery and a manufacturing method thereof. Background technique [0002] At present, the steel wire ropes used in high-lift construction machinery are currently mainly 6-strand contact wire ropes and multi-layer wire ropes. It is difficult for such wire ropes to meet the use requirements in complex working conditions in terms of load-carrying capacity and fatigue resistance. Correspondingly, the requirements for the anti-rotation performance of the steel wire rope are high. In China, some compacted strand steel wire ropes replace the above-mentioned steel wire ropes and are used in construction machinery. However, the breaking strength, fatigue resistance and anti-rotation performance of the wire rope did not meet the requirements for use. Contents of the invention [0003] The technical problem to b...

AI Technical Summary

Problems solved by technology

[0002] At present, the steel wire ropes used in high-lift construction machinery are currently mainly 6-strand contact wire ropes and multi-layer wire ropes. It is difficult for such wire ropes to meet the use requirements in complex working conditions in terms of load-carrying capacity and fatigue resistance. Correspondingly, the requirements for the anti-rotation performance of the steel wire rope are high. In China, some compacted strand steel wire ropes replace the above-mentioned steel wire ropes and are used in construction machinery. solution, the breaking strength, fatigue resistance and anti-rotation performance of the wire rope did not meet the requirements for use

Images