Defect detecting system for steel wire rope

A defect detection and steel wire rope technology, applied in the direction of material magnetic variables, etc., can solve the problems of reducing the sensitivity and accuracy of steel wire ropes

Inactive Publication Date: 2013-01-16
SHENXI MACHINERY
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  • Abstract
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  • Claims
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Problems solved by technology

Therefore, the broken wire magnetic flux leakage detection will be carried out under strong background noise, which reduces the sensitivity and accuracy of wire rope defect detection

Method used

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  • Defect detecting system for steel wire rope
  • Defect detecting system for steel wire rope
  • Defect detecting system for steel wire rope

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Embodiment Construction

[0034] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0035] Please refer to figure 1 as shown, figure 1 The structural diagram of the steel wire rope defect detection system provided by the embodiment of the present invention.

[0036] The wire rope defect detection system in this embodiment includes: an excitation unit 101 , a magnetic flux leakage signal detection unit 102 , a distance measurement unit 103 , a signal acquisition unit 104 , a data transmission unit 105 and a data processing unit 106 . The signal acquisition unit 104 includes a signal conditioning unit 1041 and an analog-to-digital conversion unit 1042 .

[0037] The excitation unit 101 is used to magnetize the detected steel wire rope 107 along its axial direction. Before performing defect detection on the steel wire rope 107 , the steel ...

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Abstract

The invention discloses a defect detecting system for a steel wire rope. Twist numbers of magneto-dependent sensors are uniformly arranged along the radial direction of the steel wire rope and in a position at the middle part of an excitation unit close to the surface of the steel wire rope with a certain distance; and then, magnetic flux leakage signals detected by the various magneto-dependent sensors are combined into one path to be output to a signal acquisition unit through a certain weight. The signal acquisition unit converts the combined magnetic flux leakage signal into a figure signal, and a data transmission unit transmits the figure signal to a data processing unit. The data processing unit obtains a difference signal by subtracting the figure signal and figure signals of N measuring points before the measuring point, and judges whether wire fracture exists in the steel wire rope or not according to the difference signal. Compared with the conventional defect detecting system for the steel wire rope, the defect detecting system for the steel wire rope, disclosed by the invention, efficiently reduces a strand wave signal, enables detection and quantization of broken wires to be more convenient, rapid and accurate, and moreover, can realize defect positioning for the steel wire rope, quantitative analysis and report generation of the detection result, and meets the requirement of modern safety production.

Description

technical field [0001] The invention relates to the technical field of steel wire rope defect detection, in particular to a steel wire rope defect detection system. Background technique [0002] Steel wire ropes are generally made of many single high-strength steel wires wound together to form strands, and then several strands are wound around a rope core. It has the advantages of high strength, light weight, good elasticity, impact resistance, strong overload capacity, stable and noiseless operation even at high speed, and no sudden breakage. It is widely used as an important component in lifting, transportation and traction equipment. Wire rope is one of the important parts of hoisting machinery, and it is also a key link to ensure the safety of hoisting operations. However, due to various reasons, some steel wire ropes are damaged or broken prematurely during use. Through the non-destructive testing of steel wire ropes, the detection data can be obtained in time. Through...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/83
Inventor 吴杰陈士忠
Owner SHENXI MACHINERY
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