Design of Wall Climbing Robot for Weld Seam Inspection of LPG Spherical Tank

Liqiang Hu ； Zhaohua Liu ； Mingke Wang ； Yadong Zheng

《International Core Journal of Engineering》 6卷11期 (2020/11) Pp. 321-326

https://doi.org/10.6919/ICJE.202011_6(11).0041

摘要

Aiming at the defect detection of LPG spherical tank welding seam, an ultrasonic phased array welding seam detection magnetic adsorption wall climbing robot is designed. The robot chassis device adopts the magnetic adsorption method to ensure the close contact with the wall surface of the spherical tank. The detection system uses ultrasonic phased array detection technology to achieve accurate detection of weld defects. The rack and pinion mechanism is used to design an electrically adjustable scanning frame, which is convenient for adjusting the position of the probe. Based on the .net framework, a monitoring platform for the robot host computer is developed. The robot mechanism is modular and has a simple structure, and can realize the automation and intelligence of the welding seam detection.

關鍵字

LPG spherical tank ； Wall climbing robot ； Weld inspection ； Ultrasonic phased array ； Magnetic adsorption

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