Hydraulic station

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Mining accessories

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Hebi Shuangmin Mining Machinery

Working principle

The hydraulic station employs the most advanced 25 MPa high-pressure hydraulic components available today, along with cutting-edge proportional control technology for pressure regulation. Combined with a novel and rational structural design, this hydraulic station boasts excellent operational performance. The motor drives the oil pump to rotate; as the pump draws oil from the oil tank and delivers it, mechanical energy is converted into pressure energy in the hydraulic oil. The hydraulic oil then passes through an integrated manifold (or valve assembly), where hydraulic valves regulate its direction, pressure, and flow rate. From there, it is transmitted via external pipelines to the cylinders or hydraulic motors of the hydraulic machinery, thereby controlling the change in actuator direction, the magnitude of force, and the speed of operation, and ultimately driving various hydraulic machines to perform work. The hydraulic station is an independent hydraulic unit that supplies oil according to the requirements of the drive unit (main machine) and precisely controls the direction, pressure, and flow rate of the oil flow. It is suitable for use with a wide variety of hydraulic machines that can be separated from the hydraulic system itself. The motor drives the oil pump to rotate; as the pump draws oil from the oil tank and delivers it, mechanical energy is converted into pressure energy in the hydraulic oil.

Technical Requirements

1. The installation location of the component should allow for safe and convenient adjustment and operation.

2. The mating surfaces of each valve, plugs, and oil collection blocks shall be tested at 1.25 times the design pressure Pmax for a duration of 5 minutes. During this test, no permanent deformation or oil leakage shall occur anywhere in the system. The valves shall operate flexibly, accurately, and reliably.

3. Hydraulic stations equipped with “pressure regulation devices” shall possess high-pressure performance.

4. The hydraulic station is designed to meet the requirements of automated boosting. When equipped with two sets of “pressure-regulating devices,” the graceful difference in pressure increase (or decrease) corresponding to the same control current (or voltage) between the two sets of “pressure-regulating devices” must not exceed 0.2 MPa.

5. The hydraulic station shall have adjustable secondary braking performance, meaning both the primary braking oil pressure and the duration of action can be adjusted as needed.

6. During shaft hoisting, the secondary braking system near the shaft opening should be capable of releasing to engage the primary braking system.

7. The hydraulic station used for single-rope winding elevators shall meet the “rope adjustment” requirements.

8. The hydraulic station is equipped with necessary oil-pressure monitoring and detection components, such as electrical contact pressure gauges, pressure relays, and pressure sensors.

9. The hydraulic station shall be equipped with a hydraulic oil temperature sensor. The maximum oil temperature should not exceed 70℃, and the temperature rise of the oil should not exceed 34℃. The location for measuring the oil temperature shall be within a radius of 200 mm centered on the oil pump’s oil pipe.

10. The hydraulic station shall specify the maximum and minimum oil levels and be equipped with clear markings—known as oil level indicators. These oil level indicators should be easy to remove and clean.

11. The hydraulic station shall be equipped with independently operated working brakes and safety brakes. There shall be at least two or more oil return circuits for the pressurized oil, and these circuits shall not interfere with each other.

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Phone

+86 18739238888

hbshuangmin@aliyun.com

Contact Address

Shilin Industrial Park, Shan District, Hebi City, Henan Province

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