PREFABRICATED TOOTH FOR EXCAVATING DEVICE, CONTAINING COMPONENTS FROM RARE-EARTH MATERIALS

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FIELD : machine building. SUBSTANCE : group of inventions relates to replaceable machines parts, subjected to high degree of wear, and, in particular, to prefabricated tooth for excavating device. Equipment components connection system comprises magnetic coupling assembly and magnetic coupling. Magnetic coupling assembly is intended for tooth top connection to adapter, as well as for installation of, at least, partially in recess, made in adapter. Magnetic coupling assembly includes insert, intended for installation in adapter recess, wherein insert includes first inner recess. At that, magnetic coupling is intended for installation in insert first inner recess. Invention also includes for of magnetic coupling installation device on equipment components and magnetic coupling disconnection device on equipment components. EFFECT : technical result is swiftness and efficiency of replaceable parts installation and dismantling. 19 cl, 13 dwg