HYDRAULIC HAMMER Russian patent published in 2016 - IPC E02D7/10 

FIELD: construction.

SUBSTANCE: invention relates to designs of breakers for immersion into soil long rod elements. Hydraulic hammer comprises body with guides supporting shock mass fixed on the housing of hydraulic cylinder rod is coupled with impact weight via thrust bearing installed in the body of impact weight to displace relative to impact weight, fixed on impact weight limiting cover. At that part of rod in contact with thrust bearing is made in the form of spherical head with protruding relative to the stock bearing surface to support thrust limiting cover plate springs, and conjugated with spherical head surface end thrust bearing is made in the form of truncated cone.

EFFECT: higher reliability and durability of the hydraulic hammer due to reduced bending load on the piston rod of hydraulic drive.

1 cl, 1 dwg