Blog Information

• Posted By : hong yi
• Posted On : Dec 03, 2019
• Views : 247
• Category : General
• Description : What are the main points and problems of vane pump management that need your attention and attention? The following contents will give you a brief understanding, hoping to be helpful to you.
• Location : Taizhou, 浙江省中国

Overview

• What are the main points and problems of vane pump management that need your attention and attention? The following contents will give you a brief understanding, hoping to be helpful to you.

  In addition to the need to prevent dry rotation and overload, prevent air intake and excessive suction vacuum, what else?

  1. When the pump steering changes, its suction and discharge direction also changes. Vane pumps have specified steering, and reverse is not allowed. Because the rotor blade groove is inclined, the blade is chamfered, the bottom of the blade is communicated with the oil discharge cavity, and the throttle groove, suction port and discharge port on the oil distribution plate are designed according to the established steering. Reversible vane pumps must be specially designed.

  2. Vane pump assembly: The oil distribution plate and stator are correctly positioned with positioning pins. The blades, rotor and oil distribution plate are not allowed to be installed reversely. The suction area on the inner surface of stator is most easily worn. If necessary, it can be installed reversely so as to make the original suction area become the discharge area and continue to be used.

  3. Disassembly and assembly: Pay attention to the cleanliness of the working surface, and the oil should be well filtered during work.

  4. If the clearance between the blades in the blade groove is too large, the leakage will increase. If the clearance is too small, the blades cannot freely expand and contract, which will lead to work disorder.

  5. The axial clearance of vane pump has great influence on η v.

  1) small pump--0.015～0.03mm

  2) Medium-sized pump--0.02～0.045mm

  6. The temperature and viscosity of oil should not exceed 55℃ in general, and the viscosity should be between 17 ~ 37mm2/s. It is difficult to suck oil if the viscosity is too high. If the viscosity is too small, the leakage will be serious.

  For more information, please contact us: vane pump supplier.