Steel wire rope as well as breakage early-warning device and method thereof

Abstract

The invention discloses a steel wire rope as well as a breakage early-warning device and method thereof. The steel wire rope comprises a fine steel wire and at least one lead provided with an insulation layer, the lead and the fine steel wire are twisted and wound together so that the lead and the fine steel wire can be retracted synchronously. The breakage early-warning device of the steel wire rope comprises an alarm, the steel wire rope, a signal detector and a controller; the leads on two ends of the steel wire rope are electrically connected with a signal input end of the signal detector; and the signal output end of the signal detector is electrically connected with the signal input end of the controller, and a control signal output end of the controller is electrically connected with the alarm. The steel wire rope disclosed by the invention has the outstanding characteristics of facilitating electric connection and improving the intelligent degree of real-time detection of the tensile force of the steel wire rope so as to avoid human factors as much as possible.

Description

technical field [0001] The invention relates to a steel wire rope, in particular to a wire rope fracture early warning device and an early warning method controlled by the steel wire rope. Background technique [0002] Steel wire rope is a kind of flexible member widely used in engineering. It has the advantages of high strength, light weight, good elasticity, stable and reliable operation, strong ability to withstand dynamic load and overload, and no noise when running and winding under high-speed working conditions. Construction, mining, metallurgy, transportation, tourism and other major industries and departments of the national economy have been widely used. The steel wire rope will be fatigued, corroded, worn, and even broken during use. The broken steel wire rope may have serious consequences. The mooring wire rope of a large floating crane in the shipyard broke and got out of control. It drifted down and hit the No. 4 pier of the Wuhan Yangtze River Bridge, causing ...

AI Technical Summary

Problems solved by technology

In terms of steel wire rope maintenance, the traditional manual visual inspection method requires that the running speed of the steel wire rope should not be too fast, and the time required for one inspection is long, the inspectors are prone to fatigue, the labor intensity is high, and the efficiency is low, which affects the improvement of labor productivity; On the one hand, the requirements for operators are also high, and experienced workers or well-trained technicians are needed. This detection method can only inspect the steel wire rope section that can be seen by the naked eye, and the internal defects of the steel wire rope are difficult to detect. The whole process and comprehensive inspection of steel wire rope is carried out, which reduces the reliability of its detection

At present, the non-destructive testing of steel wire ropes at home and abroad basically uses electromagnetic principles. Due to the limitations of electromagnetic testing methods, the number of broken wires is still difficult to quantitatively detect. Some defects need to be analyzed and judged by people to determine the degree of damage to the steel wire rope.

The main reason for the limitations of the above-mentioned methods for detecting steel wire ropes is that the steel wire ropes are very long, and it is not easy to detect them in real time as a whole

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