MULTI-TURN HYDRAULIC DRIVE Russian patent published in 2021 - IPC F16K31/12 

FIELD: pipelines.

SUBSTANCE: multi-turn hydraulic drive is intended for use as a driving device for mechanization of gearboxes of shut-off valves of pipelines. The drive contains a body, a handwheel device with automatic shutdown, including a handwheel clutch, a handwheel engaging lever and a stop that holds the spline clutch with pins in engagement with the handwheel clutch, a hydraulic motor, quick-release couplings for connecting hydraulic lines to a hydraulic motor, the shaft of which is made with the possibility of transferring rotation to the driven gear of the gear block mounted on the output shaft of the drive, and the output shaft is made with splines on which the splined coupling is installed, the gear block is made in the form of spur gears, while the driven gear of the gear block is made with pins included in engagement with the pins of the splined clutch under the action of a spring installed between the latter and the clutch of the handwheel, and the stop is located between the driven gear and the splined clutch with the possibility of their disconnection when the handwheel is turned on by the lever.

EFFECT: invention is aimed at performing work from the kinetic energy of the movement of a hydraulic fluid obtained by any method other than electrical energy.

1 cl, 4 dwg