EXCAVATING ELEMENT Russian patent published in 2012 - IPC E02F9/28 

FIELD: mining.

SUBSTANCE: as per the first version, excavating element includes the first element equipped with a surface interacting with soil, the second element having a pin; lock installed with possibility of being rotated between the first element and the second element and provided with a slot into which the pin is to be installed. At that, the above lock has the possibility of being rotated between closed position in which the pin cannot leave the slot and the second position in which the pin can leave the slot so that the first element can be separated from the second element. As per the second version, excavating element includes the first element equipped with a surface interacting with soil and lock cavity fixing the sleeve installed in lock cavity with possibility of being locked and unlocked, the lock having the first slot and installed with possibility of being locked and unlocked by means of locking sleeve, as well as rotation relative to locking sleeve.

EFFECT: protection of excavating element against wear, and improvement of excavation efficiency.

26 cl, 32 dwg