Male and female parts of civil engineering bucket wear assemblies

摘要

The civil engineering bucket wear assembly comprises a male part 1 and a female part 2, both of which have a nose 10 (male part) or cavity 20 (female part) with an upper contact surface and a lower contact surface. Have The upper contact surface has upper front contact portions 14, 24 extending rearward from the tip of the nose or the bottom of the cavity, and the lower contact surface has lower front contact portions 13, 23 extending similarly. One of the upper front contact portion and the lower front contact portion is a concave surface, and the other is a convex surface. Similarly, the upper contact surface has upper rear contact portions 16, 26 extending forward from the nose base or cavity entrance, and the lower contact surface has lower rear contact portions 15, 25 extending similarly. One of the upper rear contact portion and the lower rear contact portion is a concave surface, and the other is a convex surface.