FIELD: mining.
SUBSTANCE: invention relates to impact tool for high-speed grinding crusher of high impact capacity, intended for crushing of rocks and minerals. Disclosed is an impact tool comprising an elongated unit, the first end of which is attached to the rotor shaft of the grinding crusher by means of a through hole, wherein the through hole extends from the upper flat surface to the lower side of the unit, the unit comprises a first and a second portion of the unit, connected to each other to form a stepped ledge only on the leading edge of the percussion tool, as well as additionally containing wear-resistant element, which serves to increase wear resistance of impact tool. At that, element containing plurality of separate links, in which a plurality of separate links is a row of wear-resistant teeth installed next to each other along the leading edge of the impact tool in a stepped shoulder.
EFFECT: invention provides high efficiency during use.
10 cl, 11 dwg
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