Ultrasonic phased array weld joint detection magnetic adsorption wall-climbing robot and working method thereof

A wall-climbing robot and ultrasonic phased array technology, applied in the field of robotics, can solve the problems of reducing manual labor, poor working environment, and low detection efficiency, and achieve automation and intelligence, reduce risks, and have strong obstacle-crossing capabilities Effect

Active Publication Date: 2020-08-21
TIANJIN UNIV OF TECH & EDUCATION TEACHER DEV CENT OF CHINA VOCATIONAL TRAINING & GUIDANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention overcomes the deficiencies in the prior art. The existing ultrasonic phased array detection adopts manual operation, and the detection personnel carry the phased array detection equipment to climb the scaffolding. The working environment is bad, the labor intensity is high, the safety is poor, and the detection efficiency is low. Low, providing an ultrasonic phased array weld detection magnetic adsorption wall-climbing robot and its working method, the robot can realize non-destructive flaw detection detection of surface welds of liquefied petroleum gas (LPG) spherical storage tanks, reducing manual labor quantity, adapt to harsh working conditions, avoid dangerous accidents during manual inspection, and meet strict inspection standards for weld defects

Method used

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  • Ultrasonic phased array weld joint detection magnetic adsorption wall-climbing robot and working method thereof
  • Ultrasonic phased array weld joint detection magnetic adsorption wall-climbing robot and working method thereof
  • Ultrasonic phased array weld joint detection magnetic adsorption wall-climbing robot and working method thereof

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Effect test

Embodiment 1

[0038] An ultrasonic phased array weld detection magnetic adsorption wall-climbing robot, including a mobile chassis device 1, an anti-overturning device 2, a lifting component 3, a scanning frame device 4, a control and detection system 5, and a coupling agent device 6,

[0039] Mobile chassis device 1 comprises housing 10, rubber track 11, DC geared motor 14, DC motor driver 15, track permanent magnet 16, driving wheel 18, driven wheel 19 and auxiliary wheel 191, and DC geared motor 14 is set in housing 10 and DC motor driver 15, DC motor driver 15 controls the operation of DC geared motor 10, drive wheel 18, driven wheel 19 and auxiliary wheel 191 are respectively installed on the left and right sides of housing 10, the output of drive wheel 18 and DC geared motor 14 The shafts are connected to provide power for the housing 10, the driving wheel 18, the driven wheel 19 and the auxiliary wheel 191 are connected through the rubber track 11, the driven wheel 19 and the auxiliar...

Embodiment 2

[0043] On the basis of Embodiment 1, the lifting assembly 3 includes an auxiliary plate 31, a bracket 32, a reel 33, a support plate 34 and a stepping motor 37 for lifting, and the support plate 34 is fixedly connected to the outer wall of the head end of the housing 10. The stepper motor 37 for lifting is installed on the plate 34, and the stepper motor 37 for lifting links to each other with the stepper motor driver 54, and the output shaft of the stepper motor 37 for lifting links to each other with the reel 33, and the reel 33 is installed in the middle of the support 32, Rope is provided on reel 33, and auxiliary plate 31 links to each other with the bottom end of support plate 34 by pin 35, and suspension ring 36 is provided with in the movable end middle part of auxiliary board 31, and suspension ring 36 links to each other with rope, and the stepper motor 37 of lifting can According to the command sent by the main controller 52 to the stepper motor driver 54, it control...

Embodiment 3

[0045] On the basis of Embodiment 2, the anti-overturning device 2 includes a magnetic yoke plate 21, a magnetic steel block 22 and an connecting plate 23, the magnetic yoke plate 21 is connected to the bottom of the head and tail ends of the housing 10 through the connecting plate 23, and the magnetic steel block 22 It is fixed on the bottom of the yoke plate 21.

[0046] The anti-overturning device 2 also includes balls 24 uniformly installed on the four corners of the yoke plate 21 .

[0047] The couplant device 6 includes a couplant storage tank 61 and a circulation pump 62, the couplant storage tank 61 and the circulation pump 62 are fixed on the top of the casing 10, the flaw detection data collector 53 is installed on the couplant storage tank 61, and the circulation pump 62 and the The couplant storage tank 61 is connected, and the circulation pump 62 pumps the couplant into the contact surface between the ultrasonic probe and the adsorbent through a hose, so as to enh...

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Abstract

The invention provides an ultrasonic phased array weld joint detection magnetic adsorption wall-climbing robot and a working method thereof. A movable chassis device adopts a magnetic adsorption crawler belt structure; overturn-preventing devices are installed at the front end and the rear end of the movable chassis device, a lifting assembly is installed at the front portion of the robot movablechassis device, a scanning frame device is installed at the front end of the lifting assembly, a control and detection system achieves robot control and signal collecting and processing functions, anda coupling agent device supplies a coupling agent to a phased array probe. The robot can realize nondestructive flaw detection on the surface weld joint of a liquefied petroleum balloon type storagetank, reduces the labor amount of manual operation, adapts to severe working conditions, avoids dangerous accidents during manual detection, and meets strict weld joint defect detection standards.

Description

technical field [0001] The invention relates to the technical field of robots, and more specifically relates to an ultrasonic phased array weld detection magnetic adsorption wall-climbing robot and a working method thereof. Background technique [0002] Liquefied petroleum gas (LPG) is widely used in various fields as a very important fuel and chemical raw material. After the spherical storage tank is used for a period of time, stress corrosion cracking often occurs at the weld, which is easy to cause liquefied petroleum gas Leakage, combustion, explosion and other safety issues. At present, ultrasonic phased array detection technology has been widely used in weld defect detection. Ultrasonic phased array testing of spherical storage tanks is usually done manually. Scaffolding needs to be set up in advance before testing, and testing personnel carry phased array testing equipment to climb the scaffolding. The working environment is harsh, the labor intensity is high, the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/04G01N29/265G01N29/28B62D55/265
CPCG01N29/04G01N29/265G01N29/28B62D55/265G01N2291/0234G01N2291/2695Y02E30/30
Inventor 刘朝华胡立强邓三鹏祁宇明孙磊
Owner TIANJIN UNIV OF TECH & EDUCATION TEACHER DEV CENT OF CHINA VOCATIONAL TRAINING & GUIDANCE
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