What is a vane pump?

Vane pump rotor vane is in contact with the pump casing (stator ring), the inhalation of the liquid pressure from the oil side of the discharge side of the pump. Vane pump management points in addition to the need to prevent dry-turn and overload, anti-inhalation of air and suction vacuum too large, should also be noted: 1. Pump steering change, then its suction and discharge direction also change the vane pump has a specified steering, do not allow the reverse. Because the rotor slots are tilted, chamfered leaves, the bottom of the leaves and drain chamber through, with the throttle on the oil pan and suction, exhaust port is designed according to the established steering. Reversible vane pumps must be specially designed. 2. Vane pump assembly with the oil pan and the stator with the positioning pin correct positioning, blade, rotor, with the oil pan shall not be installed against the inner surface of the stator suction part of the most vulnerable to wear, if necessary, can flip it installed so that the original inhalation zone change Continue to use for discharge area. 3. Disassembly pay attention to the work surface clean, oil should be well filtered at work. 4 blades in the leaf slots in the gap is too large will increase the leakage, too small then the leaves can not be freely scalable, will lead to work disorders. 5. Vane pump axial gap ηv great influence. 1) Small pump -0.015 ~ 0.03mm 2) Medium pump -0.02 ~ 0.045mm 6. The temperature and viscosity of the oil generally should not exceed 55 ℃, viscosity requirements between 17 ~ 37mm2 / s. Viscosity is too large, oil absorption is difficult; viscosity is too small, the leak is serious.