VIBRATION HAMMER Russian patent published in 2012 - IPC E21B6/04 

FIELD: machine building.

SUBSTANCE: vibration hammer includes the main housing, impact application unit comprising the piston housing installed so that it can be lifted by means of hydraulic pressure of control valve block installed in the main housing; the device guiding the hammer and installed in sliding manner on the main housing so that it can be coaxial to piston housing; and the piston both ends of which are fixed on piston housing and the device guiding the hammer and elastically deformed at the specified angle with direction of lifting of the piston housing; and rotation assembly installed in the main housing and mutually rotating the device guiding the hammer, which is lifted together with the piston.

EFFECT: vibration hammer can prevent the damage to the piston when being elastically deformed, when the side pressure is applied to the rod connected to the piston.

4 cl, 5 dwg