Multi-cylinder synchronous structure of hydraulic system
A technology of hydraulic system and hydraulic cylinder, applied in the field of multi-cylinder synchronous structure of hydraulic system, can solve the problems of inconsistent friction gap, error of cylinder machining accuracy, and difficulty in controlling the parallelism of sliders.
Inactive Publication Date: 2012-07-25
NANTONG FORGING EQUIP
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Problems solved by technology
The invention relates to a multi-cylinder synchronous structure of a hydraulic system, which comprises a hydraulic cylinder group I and a hydraulic cylinder group II. A system I and a system II supply liquid to the hydraulic cylinder group I and the hydraulic cylinder group II respectively. The multi-cylinder synchronous structure is characterized in that a device for controlling the oil drainage quantity of a return cavity of the hydraulic cylinder group II based on the pressure of a return cavity of the hydraulic cylinder group I is arranged on the return cavity of the hydraulic cylinder group II. The system I and the system II correspondingly supply oil in the same quantity to upper cavities of hydraulic cylinders involved in pressing, the device for controlling the oil drainage quantity of the return cavity of the hydraulic cylinder group II controls the oil drainage quantity by means of comparing the pressure of the return cavity of the hydraulic cylinder group I with the pressure of the return cavity of the hydraulic cylinder group II, and uniform movement of the hydraulic cylinders in the hydraulic cylinder group I and the hydraulic cylinder group II is ensured, so that the balance level of a whole movable beam is controlled.
Control engineeringHydraulic cylinder
- Experimental program(1)
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