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"Electro-hydraulic valve" in the hydraulic cylinder play what role?

Release time:

2019-05-05 12:30

Source:

"Electro-hydraulic valve" in the hydraulic cylinder play what role?
The "electro-hydraulic reversing valve" in the hydraulic seal (the pressure oil in the control circuit pushes the valve core; its function is to close the balance hole circuit.) And "hydraulic control directional valve" is mainly used in the hydraulic system whose flow rate exceeds the allowable range of the normal operation of the electromagnetic directional valve to control the action of the actuator or control the flow direction of the oil. The "electro-hydraulic reversing valve" in the hydraulic seal system is a kind of reversing valve that uses indirect pressure control (commonly known as pilot control valve) to change the working position of the spool of the "electro-hydraulic reversing valve. "Electro-hydraulic directional valve" is a combination of "electromagnetic directional valve" and "hydraulic directional valve.
 
"Solenoid valve" mainly play the role of the pilot (also known as the pilot valve), used to control the flow direction of the flow, thereby changing the "flow valve" (commonly known as the main valve) of the spool position, so as to achieve a smaller electromagnet to control the larger flow., Let's take a look at the "electro-hydraulic reversing valve" there are several reversing methods.
1. When the solenoid at the right end of the pilot valve of the hydraulic seal system is energized, the valve core moves to the left, and the pressure oil in the control oil circuit enters the right control oil chamber of the main valve to move the valve core of the main valve to the left, so that the oil inlet P and The oil port A is connected, and the oil port B and the oil return port T are connected;
2. When the solenoid at the left end of the pilot valve of the hydraulic seal system is energized, the valve core moves to the right, and the pressure oil of the control oil circuit enters the left control oil chamber of the main valve, pushing the main valve core to move to the right, so that the oil inlet P and The oil port B is connected, and the oil port A and the oil return port T will be connected, thus realizing the reversing effect.

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