HYDRAULIC OIL PRESS CONTROL SYSTEM Russian patent published in 2021 - IPC B30B15/16 B30B9/12 

FIELD: machine building.

SUBSTANCE: invention relates to machine building and can be used in process equipment for food industry. Oil press control system comprises hydraulically controlled two-position eight-line hydraulic distributor connected in first position by two hydraulic lines with hydraulic pump and hydraulic tank. By means of the third hydraulic line the hydraulic control valve is connected through the controlled throttle with the hydraulic cylinder, which is connected to the hydraulic distributor by the fourth hydraulic line. By means of the fifth hydraulic line the hydraulic cylinder through the first adjustable pressure valve is connected to the hydraulic distributor and its first control cavity. Sixth pressure hydraulic line is connected with hydraulic motor hydraulic distributor. At that, the sixth pressure hydraulic line through the second adjustable pressure valve is connected to the second control cavity of the hydraulic control valve, and by means of the seventh hydraulic line - to the hydraulic distributor. By the eighth drain hydraulic line the hydraulic motor is connected to the hydraulic tank via the hydraulic distributor. In the second position of the hydraulic control valve the first hydraulic line is connected to the sixth hydraulic line. Eighth, fifth and fourth hydraulic lines are connected via hydraulic pressure control valve with hydraulic tank.

EFFECT: simplified control system and increased oil output.

1 cl, 2 dwg