HYDRAULIC DRIVE OF SETTING DEVICE Russian patent published in 2009 - IPC F15B11/08 F15B15/16 F15B15/22 

FIELD: mechanical engineering.

SUBSTANCE: hydraulic drive is provided for regulation of powerful setting devices for objects. Hydraulic drive contains hydraulic actuator with two pistons with equal to external diametre, and also with two single-sided rods, herewith inner rod is connected to the first piston, and hollow external rod - with the second piston. The second piston allows peripheral openings and central opening for inner rod for its movement in interior volume of external rod. In bush sleeve of hydraulic actuator there are implemented opening for connection of regulating equipment, including distributor with electromagnetic control, pump, and return valve with throttle. Inner rod is implemented of length, less the length of external rod and with clamp at free end for travel limit relative to external rod, and damper is implemented with ability of load impact compensation ensured by throttling of hydraulic fluid, forced out by inner rod from interior volume of external rod.

EFFECT: it is simplified structure and increased reliable performance of hydraulic actuator's piston and damper for balancing of load impact action, there are reduced overall dimensions and weight of hydraulic actuator and hydraulic drive in whole.

3 cl 4 dwg