Title:
ACTUAL BRIDGE WELD SCANNER AND SCANNING METHOD
Document Type and Number:
WIPO Patent Application WO/2017/215359
Kind Code:
A1
Abstract:
An actual bridge weld scanner and a scanning method therefor, the scanner comprising a walking part and a scanning part which are mounted on a scanner chassis (1); laser range finders (9) are disposed on a head end and a tail end of the scanner chassis (1), and a magnet (11) is disposed at the bottom of the scanner chassis (1); the scanning part comprises a probe slider (2), a bendable metal pipe (4) and a probe which are connected in order; a gear (3a) is disposed on the probe slider (2), and the gear (3a) is engaged with a rack (7) inside a scanner chassis chute (8). The method is used to scan while the walking part moves forward along a weld. When a magnetic field change is detected, a suspected defect location is scanned more carefully. The scanner can be used to accurately detect and locate defects of steel box girder welds, photograph macroscopic phenomena of the defects in a real time manner, and determine the coordinates of the position the scanner, thereby improving the efficiency and quality of actual bridge weld detection, and effectively reducing detection costs.
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Inventors:
FU ZHONGQIU (CN)
JI BOHAI (CN)
WANG QIUDONG (CN)
YUAN ZHOUZHIYUAN (CN)
JI BOHAI (CN)
WANG QIUDONG (CN)
YUAN ZHOUZHIYUAN (CN)
Application Number:
PCT/CN2017/082558
Publication Date:
December 21, 2017
Filing Date:
April 28, 2017
Export Citation:
Assignee:
UNIV HOHAI (CN)
International Classes:
G01N27/83; G01N21/88
Foreign References:
| CN106053592A | 2016-10-26 | |||
| CN104977351A | 2015-10-14 | |||
| CN104391033A | 2015-03-04 | |||
| CN204228622U | 2015-03-25 | |||
| CN102139398A | 2011-08-03 | |||
| JPH03128189A | 1991-05-31 |
Attorney, Agent or Firm:
NANJING SUGAO PATENT AND TRADEMARK FIRM (ORDINARY PARTNERSHIP) (CN)
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