How to check the Denison vane pump?

The structure of the Denison vane pump is very compact, and the gap is also very small. The Denison vane pump is also very demanding on the hydraulic oil. No impurities, oil viscosity, oil cleanliness, and quality will affect the life of the Denison vane pump.

1.Check the direction of rotation of the Denison vane pump: if the direction is wrong, the pump will not produce oil. At this time, the work should be stopped immediately, and the motor steering should be corrected according to the standard arrow direction of the Denison vane pump, and the rotation direction should be corrected.

2.Check whether the pump shaft is broken, the damaged rotor of the pump shaft cannot roll.

3.Check whether there is air leakage in the suction pipe. Because the suction pipe joint is tightened, the suction pipe joint is poorly sealed or oil is leaking, the filter has oil lumps and other factors, the necessary vacuum degree cannot be formed in the pump suction chamber, and the pressure and pressure of the pumped oil chamber The atmospheric pressure is equal, and the atmospheric pressure cannot make the oil tank enter the pump, and the poor sealing can be identified and countermeasures can be taken.

4.Check whether the oil level is too low, add oil to the oil level.

5.Check whether the viscosity of the oil is too high: if the viscosity of the oil is too high, the blades cannot slide out of the rotor groove due to the large sliding resistance, so as to replace the lower viscosity of the oil; use hot oil before the cold climate, if necessary, take out the drain Oil pipe, and fill the pump with oil and start it again.

6.Check whether the speed of the Denison vane pump is too low: the centrifugal force cannot make the vanes throw out of the rotor groove, and the sealing space cannot be changed. Usually, the speed of the Denison vane pump is less than 000, and the oil absorption is higher than 1800. When the oil absorption speed is too high Difficult to absorb oil when fast.

7.Check whether the blades are stuck: the blades and dirt between the rotor slots and burrs; the cooperation gap between the blade and the rotor slot is too small; the hydraulic oil viscosity is too high due to the long shutdown time of the pump; the corrosion in the hydraulic oil causes the Due to factors such as blade corrosion, single or multiple blades are stuck in the rotor slot, cannot be thrown out, cannot build up pressure, and the oil seal space cannot apply pressure. Denison vane pump inspection, according to the specific situation.