FASTENING DEVICE FOR ATTACHMENT OF WORN OR PROTECTIVE ELEMENT TO EXCAVATING MACHINE BUCKET AND CORRESPONDING FASTENING SYSTEM AND METHOD Russian patent published in 2019 - IPC E02F9/28 

FIELD: machine building.

SUBSTANCE: invention relates to a device for attachment of a worn element to a bucket of an excavating machine. Fixing device for attachment of worn or protective element to bucket of excavating machine, containing stop with lower part, made with possibility of arrangement in seat rigidly fixed to ladle base, at that stop is formed from lower and upper halves. In the set position, the lower and upper halves of the stop are fixed to each other by means of a screw located in the through hole of the upper half of the stop and the hole of the lower half of the stop. Lower half of the stop has a rear surface and a front surface, at least a portion of which is located on the lower part and faces the front wall of the seat, note here that lower half of thrust can be inserted into seat through opening in wear-resistant element top surface. Upper half of stop has front and rear surfaces and is made with possibility of vertical introduction through opening in upper surface of worn element. Assembly formed by the lower and upper halves of the stop in the installed position when seen from above is at least partially larger than the perimeter of the opening. At that, in the set position the upper half of the stop is not in contact with the front wall.

EFFECT: reduced operating costs and increased efficiency.

10 cl, 20 dwg