Tips and methods for selecting working oil for low-noise hydraulic press vane pumps

1. Be aware of the relationship between the operating temperature of the oil in the tank (open circuit) and the temperature of the environment.

2. The selected hydraulic oil must be able to ensure that the operating viscosity of the oil is within the range within the operating temperature range.

3. Note: The temperature of leakage oil (casing leakage oil) is affected by the pressure and speed of the low-noise vane pump and is always higher than the oil temperature of the fuel tank. However, the temperature must not exceed 90 degrees anywhere on the system.

4. If the above conditions cannot be met due to extreme working conditions or excessively high ambient temperature, please consult us.

5. Filtration of low-noise vane pump oil: The finer the filtered oil, the higher the cleanliness of the working liquid, and the longer the life of the plunger pump.

A low-noise hydraulic vane pump includes a pump casing, a pump core and a transmission shaft. The pump core is arranged in the pump casing. The pump core includes a left oil pan, a right oil pan, a stator and a rotor. The stator The rotor is arranged between the left oil pan and the right oil pan, the rotor is arranged in the stator, the rotor is provided with a rotor slot, the rotor slot is provided with blades, the rotor is connected to the transmission shaft, And is driven by rotation through the transmission shaft, which is characterized in that the blade is provided with a hollow hole, one end of the blade inserted into the rotor slot is the connecting end, and the other end is the protective film end, and the end face of the protective film end is eccentric It is arc-shaped, and the end of the protective film is a PVD coating protective film. The low-noise vane pump provided by the utility model can reduce the friction coefficient, reduce noise, improve the fit between the vane and the rotor, and extend the service life of the vane pump.