DYTP ELECTRO AND HYDRAULIC THRUSTER

Working principle of electrohydraulic push rod

The electro-hydraulic push rod is the power source of the electric motor position, through the positive and negative rotation of the motor, it drives the two-way power pump to output pressure oil, and sends it to the oil cylinder through the control valve group to realize the reciprocating motion of the piston rod of the oil cylinder.

The following introduces you to the heart of the electro-hydraulic push rod: the working principle of the combined valve

The combination valve is the core control component of the electro-hydraulic push rod. It connects two relief valve spools, two check valve spools, and two one-way ball valves through the valve body.The cores are connected to form a combined valve with symmetrical structure and function.
The main functions of the combination valve are: adjusting the system pressure, controlling the output force of the electro-hydraulic push rod, controlling the direction of the liquid flow and the direction of the piston rod, and protecting the system from overload.
Combination valve working principle diagram:

Electro-hydraulic push rod installation and commissioning
1. Inject clean 46# hydraulic oil into the electro-hydraulic push rod (filter before injection), install the oil filler cap, check the sealing performance, connect the motor power, install the electro-hydraulic push rod at the working position and connect the transmission device After that, it can be used.
2. Wire according to the electrical schematic diagram and terminal diagram, and confirm that the push rod has been filled with hydraulic oil to start. After the motor rotates, see if the push rod has an extension or retraction action (during the first test run, due to the air in the cylinder, It may stop for a few seconds before moving, which is normal), if the motor rotates and the push rod does not move, please adjust the rotation direction of the motor and try again.
3. When wiring the limit switch and the motor, please pay special attention to the polarity of the limit switch and the direction of rotation of the motor, to prevent the limit switch from pressing the motor to rotate, and the push rod does not move. At this time, adjust the direction of the motor or reverse the limit switch.

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