HYDRAULIC DRIVE OF RECIPROCAL MOTION Russian patent published in 2016 - IPC F16H39/02 F15B15/14 F16K31/163 

FIELD: machine building.

SUBSTANCE: invention relates to machine building, particularly, to devices intended for conversion of working fluid energy into mechanical energy. Hydraulic drive of reciprocal motion consists of housing, dual-action hydraulic cylinder with piston with rod and dividing cavity of hydraulic cylinder into piston and rod chambers. Each chamber is equipped with a nozzle to feed working body. Piston is made double and together with rod is fixed on housing of hydraulic drive. Piston rod on both sides is hollow, with formation inside rod of two cavities separated by blind web arranged in area of piston at its central part. One rod is connected to cavity of piston chamber of hydraulic cylinder channels made in wall of rod in area of piston on side of piston chamber. Another rod is connected with rod chambers of hydraulic cylinder channels made in wall of rod in area of piston on side of piston chamber. Hydraulic cylinder to displace the piston, and on its surface there is a gear rack to interact with gear arranged in housing of hydraulic drive and installed on actuator driven unit.

EFFECT: simplified design.

1 cl, 3 dwg