CUTTING RING FOR CONCRETE PUMP

摘要

A cutting ring for a concrete pump, comprising: an annular steel base (1); an outer circle cutting edge (11) formed on the outer side of the sliding end face of the annular steel base (1); an inner circle cutting edge (12) formed on the inner side of the sliding end face of the annular steel base (1); an annular abrasion-resistant ring (2) inlaid on the sliding end face of the annular steel base (1); and abrasion-resistant members (100) inlaid in the outer circle cutting edge or in the inner circle cutting edge of the annular steel base (1), or inlaid in the outer circle cutting edge and in the inner circle cutting edge of the annular steel base (1), each abrasion resistant member (100) comprising an abrasion-resistant bit (3) embedded in a round hole (14) in the annular steel base. The relatively long abrasion-resistant members (100) and the steel base (1) jointly bear the impact and abrasion during cutting, thus protecting the abrasion-resistant ring and preventing part of the ring from falling off, thereby extending the service life of the cutting ring. The depth of the round holes of the steel base (1) in which the abrasion-resistant bits are embedded is great enough such that even when cutting to the point of breaking the steel material, only the tip of each round abrasion-resistant block would be damaged, while the cutting ring as a whole would not be affected, thereby preventing the cutting ring from being wasted.