HYDRAULIC HAMMER Russian patent published in 2017 - IPC E21B1/26 E21B1/38 E21C37/24 

FIELD: construction.

SUBSTANCE: hydraulic hammer comprises a housing, in which an impact mechanism, an axle box with a working tool located therein, an upper elastic buffer for positioning and damping the vibrational loads of the impact mechanism and a lower elastic buffer for positioning and damping the vibration loads of the axle box are mounted. Between the housing and the axle box, at least one female part is mounted, fixing and positioning the axle box relative to the housing. The inner surface of the female part and the outer surface of the axle box are made cone-shaped, tapering upward or downward.

EFFECT: increased reliability, reduced vibration and impact loads transmitted from the axle box to the hydraulic hammer housing, improved maintainability, as well as ensuring the fixation and positioning of the axle box relative to the hydraulic hammer housing.

6 cl, 1 dwg