Knuckle assembly of mining dump truck

The utility model discloses a knuckle assembly of a mining dump truck, which comprises a shaft head, wherein one end of the shaft head is mounted in a steering knuckle in a pressed manner; the steering knuckle is provided with an upper lug and a lower lug; the upper lug is divided into two parts; the upper half part of the upper lug is connected with an end cover through a bolt; and a lower main shaft sleeve is mounted inside the lower lug of the steering knuckle. In the utility model, the steering knuckle is produced through casting, so that the manufacturing cost is reduced; the shaft head is pressed into the steering knuckle in an interference manner and welded and fixed, and a positioning table is particularly added during the structural design, so that press mounting is well guaranteed to be in place, and the reliability of the knuckle assembly is ensured; and the upper lug of the steering knuckle is designed into two parts in structure, so that the disassembly and assembly are convenient.