▎ 摘　　要

NOVELTY - The utility model claims a long-life tamping pickaxe body structure, comprising a pickaxe body and the pickaxe, the bottom end of the pickaxe subject provided with a pick, the pickaxe main body comprises an inner side of martensitic stainless steel, the martensitic stainless steel is compounded with polyurethane, the inner side of the polyurethane composite with aramid fibre, the inner side of the aramid fibre is pressed with rubber shock isolation layer, the inner side of the rubber isolation layer is pressed with a polyurethane plate, the inner side of the polyurethane board is compounded with graphene. the long life tamping pickaxe body structure, martensite maraging steel is made of carbon-free (or Cr-Mn) martensite as base body, intermetallic compound precipitation aging can generate ultra-high strength steel hardened by graphene, carbon fibre. maraging steel and the reinforcing rib can more improve the intensity of the whole, the device has high strength, can resist the influence caused by the external factors and it protects the pickaxe body will not be damaged, the service life is largely increased, and strong practicability, and it satisfies the use requirement of present market.