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Defect detecting method of propping bolts at ends of diagonal bracing

A technology for bolt tightening and defect detection, which is applied in the direction of optical testing of defects/defects, measuring devices, and material analysis through optical means, which can solve problems such as low efficiency, high risk of human observation, complex environment, etc., to achieve exclusion safety hidden effect

Inactive Publication Date: 2017-10-24
成都交大光芒科技股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main defect of the parts at the end of the brace is loose or missing
At present, the detection of the end of the diagonal brace adopts the method of manual on-line inspection during the skylight operation. There may be missed inspections, which may cause safety hazards

Method used

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  • Defect detecting method of propping bolts at ends of diagonal bracing
  • Defect detecting method of propping bolts at ends of diagonal bracing
  • Defect detecting method of propping bolts at ends of diagonal bracing

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Embodiment Construction

[0023] Embodiments of the present invention will be described below with reference to the drawings. The same components are assigned the same reference numerals in the various figures.

[0024] The catenary is one of the main power supply devices in the electrified railway, which is erected along the railway line. It is a special form of transmission line that transmits electric energy to electric locomotives through direct contact with the electric locomotive pantograph.

[0025] The support device is one of the components of the catenary. figure 1 is a schematic diagram of the supporting device. The following mainly describes the structure related to the diagonal brace. Such as figure 1 As shown, the support device 100 has a transverse arm 106 and an oblique arm 107 , the transverse arm has a transverse arm insulator 108 , and the oblique arm has an oblique arm insulator 109 . The diagonal brace 101 is connected between the transverse wrist arm and the diagonal wrist ar...

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Abstract

The invention relates to a defect detecting method of propping bolts at ends of diagonal bracing and can timely and accurately detect looseness or lacking of propping bolts to timely eliminate potential risks. The defect detecting method comprises the steps of rough positioning of ends of the diagonal bracing, fine positioning of the propping bolts and defect detection of the propping bolts, the step of rough positioning of the ends of the diagonal bracing further comprises an image input step, an image preprocessing step and a shape matching step, the step of fine positioning of the propping bolts comprises a normalization matrix transformation step, an image cutting and rotating step as well as a detection area selection step, the step of defect detection of the propping bolts also comprises a binarization processing step, a propping bolt area calculation step and a defect judgment step, and looseness or lacking of the propping bolts is judged according to the propping bolt areas.

Description

technical field [0001] The invention relates to a safety detection method for an electrified high-speed rail catenary, in particular to a defect detection method for a jacking bolt at the end of a diagonal brace in a support device for the catenary. Background technique [0002] With the further development of high-speed railway transportation technology and its wide application, the high-speed railway catenary, as an important facility for providing electric energy to locomotives, has attracted more and more attention whether it is in a safe working state. In order to ensure that the catenary is in good working condition and facilitate the safe operation of the electrified railway, the earlier the catenary failure is detected and dealt with, the more conducive to the safety of the electrified railway. [0003] In practice, the failure of the high-speed rail catenary is mainly caused by the looseness, detachment, lack, and cracking of parts. The end of the brace is an impor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/88
CPCG01N21/8851G01N2021/8854G01N2021/8887
Inventor 高仕斌曾晓红陈奇志刘军王倩
Owner 成都交大光芒科技股份有限公司
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