Worm gear hydraulic device

The invention discloses a í‹turbine hydraulic deviceíŒ, an auxiliary driving device for hydraulic bellows spherical valve and hydraulic bellows semispherical valve, having three powersí¬hand power, electric power and pneumatic power, all able to be mounted according to actual needs to realize partial rotation of the two valves, and it makes turbine and worm alternate with oil cylinder and piston to work so as to transfer valve stem moment and bear piston thrust. Besides, it controls output shafts of upper and middle press discs by push rod to compose a clutch. And it has independency of manpower, electric power and pneumatic power and combinability of hand power with electric power and gas power. And it is an ideal auxiliary device with compact bulk, high mechanical operating efficiency, use reliability and long service life.