WEAR ELEMENT AND LOCK ASSEMBLY OF WEAR ASSEMBLY FOR CUTTING EDGE OF WORKING BODY OF EARTH MOVING MACHINE AND METHOD OF FIXING WEAR ASSEMBLY ON CUTTING EDGE OF WORKING BODY OF EARTH MOVING MACHINE Russian patent published in 2023 - IPC E02F9/28 

FIELD: earth moving machines.

SUBSTANCE: group of inventions is related to the operation of overhead buckets or rope shovels, in particular for attaching an interface device to cutting peaks. The wear unit for the cutting edge of the working body of the earth moving machine is located on the cutting edge. The wear assembly contains a wear element containing the first leg and the second leg. The first leg contains an outer surface, which is placed so as to be facing away from the first front surface of the cutting edge, and an inner surface, which is placed so as to be facing the first front surface of the cutting edge, and the first hole located between the outer surface of the first legs and the inner surface of the first leg. The second leg has an outer surface that is positioned to face away from the second cutting edge face, and an inner surface that is positioned to face the second cutting edge face, and a second hole located between the outer surface of the second legs and the inner surface of the second leg. The first and second holes of the wear element and the hole of the cutting edge are mutually aligned, forming a through hole. The second hole of the wear unit contains the first rotary surface. The wear assembly contains a locking assembly containing a locking element and a drive device, where the locking element is made in the form of a support surface having a second rotary surface at its lower end and is placed inside the through hole; the drive device is located inside the said first hole. The second rotary surface is configured to engage with the first rotary surface to allow the locking element to rotate around the first rotary surface. The drive device is made with the possibility of making a turn, providing a snug fit of the bearing surface of the locking element to the bearing surface of the opening of the cutting edge, preventing the cutting edge from disengaging from the wear assembly.

EFFECT: use of a locking system for a wide range of applications.

56 cl, 29 dwg