HYDROMECHANICAL SHOCK-ABSORBER Russian patent published in 2005 - IPC

FIELD: mining industry.

SUBSTANCE: device has body, in lower portion of which rows of shock-absorbing elements are placed in form of balls, which are separated by metallic rings. In upper part of lower portion of body piston is placed, forming a hermetic hydraulic chamber together with shaft and upper portion of body, which chamber is meant for forming of additional shock-absorbing ability and filled with diesel oil, which is sent through hydraulic flows, placed in upper portion of body. Device is mounted as a part of assemblage of lower portion of drilling column as between chisel and calibrating means (stabilizer) and face engine, as between face engine and a structural element.

EFFECT: higher reliability, higher efficiency, higher durability, higher quality, higher precision.

1 dwg