Hydraulic station, also known as hydraulic pump station, is an independent hydraulic device. It supplies oil according to the requirements of each stage. It also controls the direction, pressure and flow of hydraulic oil flow, and is applicable to various hydraulic machinery where the host and hydraulic device can be separated.

After purchase, as long as the user connects the hydraulic station with the actuator (oil cylinder or oil motor) on the main unit with oil pipe, the hydraulic machinery can realize various prescribed actions and work cycles. Our company RuiShiBao Hydraulic Technology Co., Ltd. cooperates with many famous enterprises, and the quality is guaranteed!

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A, the structure and principle of hydraulic station

Hydraulic station is a hydraulic source device or a hydraulic device including control valve, which is composed of hydraulic pump, driving motor, oil tank, directional valve, throttle valve, overflow valve and so on. According to the flow direction, pressure and flow rate required by the driving device, it is suitable for various kinds of machinery where the driving device is separated from the hydraulic station, and the hydraulic station is connected to the driving device (cylinder or motor) by oil pipe.

Working principle: the motor drives the oil pump rotation, the pump from the oil tank suction oil supply, the mechanical energy into the hydraulic station pressure energy, hydraulic oil through the integrated block (or valve combination) to achieve the direction, pressure, flow rate adjustment through the external pipeline and to the hydraulic machinery cylinder or oil motor, so as to control the hydraulic machine direction change, the size of the force and speed, to promote a variety of hydraulic machinery to do work.

Second, the role of hydraulic station

The hydraulic station can be used as a disc brake to provide different oil pressure values of pressure oil to obtain different braking torque. In the accident state, it can make the oil pressure of the brake drop rapidly to a certain value of pre-set, and after a delay, the oil pressure of the brake returns to the collar rapidly, so that the brake reaches the full braking state.

Third, the hydraulic station common troubleshooting

1, oil leakage and oil pressure instability after long-term use, the installation of the brake between the oil collection circuit, as well as the valve and the oil collection circuit pieces a large number of leaks, and oil pressure drops leading to loose not open the valve, may be a loose screw between them, to tighten the screw. Oil pressure is unstable because the hydraulic system is mixed with air, the air should be removed, or electro-hydraulic regulator coil current filtering is not good coil up and down vibration, resulting in unstable oil pressure, the addition of electrolytic container to strengthen the filtering

2, the voltage value can not guarantee the reason is that there is air intake in the system, the oil in the tank has a lot of foam, the train is the relief valve, electromagnetic reversing valve leakage within the large; treatment: check whether the oil pump suction port leakage; oil pump suction at the pipe joint is tightened; suction filter screw is tightened; check the suction filter to the oil pump suction port at the pipeline is not air leakage; check the oil pump end cap screw is tightened; cleaning relief valve spool, if the cartridge ah valve body activities are not flexible, you can hold the spool by hand in the body to grind back and forth, cleaning the solenoid valve spool, the requirements of the spool in the valve body movement is flexible, to ensure that the spool in place when working

3, zero oil pressure brake does not release the gate system no pressure reasons; oil pump rotation direction is reversed or oil pump no output liquid; current proportional device on the overflow valve spool stuck, damping hole blockage; oil pump suction port is not smooth, oil suction filter blockage; pressure valve inside the dirty, cone valve can not be closed. Treatment: correct the direction of rotation of the pump, to exclude the fault of the oil pump; take the relief valve apart for cleaning, requiring the spool to be flexible in the valve body movement, blow through the damping hole with compressed air; clean the filter element, and check whether the suction line is blocked; disassemble the pressure valve, take off the cone valve spool to clean the device

4, the residual pressure will be too large to make the brake lose its role, the main reason is: electro-hydraulic regulator control rod of the spacer nozzle distance is too small; relief valve throttle hole is too large; treatment: the control rod on the baffle plate adjustment or replacement; the relief valve throttle hole replacement diameter of the throttle hole smaller

Fourth, the hydraulic station to pay attention to the use of the process

As the hydraulic station components and pipes in the processing, operation process, a variety of impurities such as iron filings, abrasives, return and other dirt will enter the system before use, so the hydraulic station before the first use, all valves, oil pipes, tanks should be cleaned,. During the working process, the wear and tear of various valves, pumps and other components should be checked frequently, the seals should be replaced regularly, and the seals should not have burrs or flying edges. Oil temperature should be controlled within 65℃.