The oil cylinder of hollow structure can be roughly divided into three parts:
A, atmospheric pressure cylinder. Second, the small hydraulic cylinder. Third, oil barrel.
Located in atmospheric pressure cylinder and oil barrel small cylinders, a small holes to above oil cylinders, when the pistons in the top and gas barrels (C), when air holes for the hydraulic oil will be filled with small gravity above oil cylinders, if oil barrel (C), D KongTong atmospheric pressure, hydraulic oil will inject small cylinders of oil chamber, make over small piston rod downward, conversely. When the atmospheric pressure cylinder compression, A B KongTong atmosphere is big, block oil barrel extends to small cylinders above oil chamber into the small holes, after the above airtight oil cylinders, because PASCAL principle (= output/area) pressure in the same output effect on small area, make big piston oil chamber of pressure, but must pay attention to the small piston front-end, pressure at work, can produce high booster again.
The cylinder with empty oil pipeline and two groups electromagnetic valve, the actuator can be divided into three steps are as follows:
A fast, launch location: when the solenoid valves - 1 by oil barrel cord compression C will hydraulic oil pushed into a small room above the oil cylinders, and the gas chamber pressure below the air exhaust air hole by D, until the small piston front-end pressure at work on time, working stress.
Second, when the electromagnetic valve actuator: 2 electricity, compression by B will be pushed down the piston, piston front-end into small cylinders above the oil airtight room, working at boosting force.
Third, quick return: when the electromagnetic valve 1 and 2 stop electrify electromagnetic valve, piston, and returned to open small above the upper chamber of oil cylinders with oil barrel holes, while smaller between the gas chamber pressure cylinder by D hole underneath, small hydraulic cylinder pressure oil in the room above the hydraulic oil, oil barrel until the small wheeled back above the piston rod, namely complete empty oil cylinder actuator circulation pressurization.
The empty oil cylinder actuator circulation pressurization, suitable for pressure of work procedures, namely fast to work quickly returned, and pressure and makes processing time is shortened, this is also one of its characteristics.
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