Design and implementation of wall climbing robot for surface coating repair based on permanent magnet adsorption

The surface of large equipment is often coated with anti-corrosion or specialized coatings with special functions. During daily use, local coating detachment may occur on the surface of the equipment due to collision and wear, making it difficult for manual operation to reach. Therefore, specialized equipment is needed for coating repair work. In order to meet the requirements of complex surface working conditions and have the functions of checking the surface coating status, determining the repair position, polishing the repair position, and repairing the paint, a surface walking and climbing robot based on permanent magnet adsorption is proposed. This article carried out the design, manufacturing, and final assembly of a coating repair climbing robot, and completed the process validation test of the prototype. The experiment shows that the wall climbing robot using permanent magnet adsorption technology can reliably adsorb in places where the working surface is made of ferromagnetic materials such as steel. Image recognition, surface polishing, coating repair, etc. basically meet the requirements of use, effectively improving work efficiency.