A wire rope stress on-line monitoring sensor

A monitoring sensor and wire rope technology, applied in the field of wire rope stress on-line monitoring sensors, can solve the problems of inconvenient on-line monitoring, high technical level requirements, complicated equipment and other problems, and achieve flexible use, high measurement accuracy and sensitivity, and easy availability of materials and low cost. Effect

Active Publication Date: 2016-09-07
HUAIHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the methods used in the above methods have problems such as complex instruments and equipment, high cost, high requirements on the technical level of operators, and inconvenient online monitoring.

Method used

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  • A wire rope stress on-line monitoring sensor
  • A wire rope stress on-line monitoring sensor
  • A wire rope stress on-line monitoring sensor

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Embodiment Construction

[0030] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] Such as Figure 1 to Figure 4 As shown, a kind of wire rope stress on-line monitoring sensor of the present invention comprises a shielding case 4 and a sensing device installed in the shielding case 4, and the sensing device includes the same two ferrules 6 installed up and down, and two ferrules 5 The outer surface of the outer surface is equipped with a pull plate 6, and two stress-sensitive bands 7 made of nano-microcrystalline ferromagnetic alloy are arranged between the upper and lower two same pull plates 6, and the shown stress-sensitive bands 7 are all pasted with resistors. The strain gauge 8, and the excitation coil 9 and the measurement coil 10 are also wound on the stress sensitive strip 7. Wherein, the ferrule 5 and the pull plate 6 are provided with corresponding ferrule lock nuts 13 and pull plate lock nuts, and a sprin...

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PUM

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Abstract

The invention discloses a steel wire rope stress on-line monitoring sensor, which includes a shielding cover and a sensing device installed in the shielding cover. The sensing device includes two ferrules installed up and down, and the outer surfaces of the two ferrules are equipped with pull plates. Two stress-sensitive belts are arranged between the upper and lower pulling plates, and resistance strain gauges are attached to the shown stress-sensitive belts, and excitation coils and measuring coils are also wrapped around the stress-sensitive belts. The resistance strain gauge in the present invention is a resistive sensing element, and the excitation coil and the measuring coil are inductive sensing elements. Two kinds of sensing elements are used, and the measurement accuracy and sensitivity are high, and the structure is simple and easy to install, and the adaptability is strong.

Description

technical field [0001] The invention relates to a sensing device, in particular to an on-line monitoring sensor for steel wire rope stress. Background technique [0002] Steel wire ropes are widely used in mine hoists, port cranes, passenger and cargo ropeways, elevators, suspension cable-stayed bridges, suspended roofs, ship fixed cables and other facilities. Due to the harsh working environment, fatigue, corrosion, wear and even breakage will occur during the use of the wire rope, which will affect the safe use of the wire rope. Therefore, scientific quantitative non-destructive on-line detection of the working state of the wire rope is a powerful means to discover potential safety hazards in time and avoid major accidents. At present, the most reliable non-destructive testing method for steel wire ropes recognized at home and abroad is electromagnetic testing technology, that is, magnetic flux leakage testing technology and main magnetic flux testing technology, which ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/82G01L1/22G01L1/14
Inventor 石延平鹿昆磊倪立学
Owner HUAIHAI INST OF TECH
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