Method to prevent leakage of micro high-pressure water pump

      Sometimes the water pump may have some leakage after being used for a period of time, but the user will feel that this must be replaced, but if we perform maintenance while using the micro water pump, the micro water pump will not leak. How to prevent the leakage of the micro water pump? 1. How to prevent the leakage of the mechanical seal of the micro water pump:

Mechanical seal is also known as end face seal. It has a pair of end faces perpendicular to the axis of rotation. Under the action of fluid pressure and compensating mechanical external elastic force, the end face relies on the cooperation of auxiliary seal to keep on the table with the other end and slide relatively to prevent fluid. leakage. Two, common periodic leakage:

      1. The rotor of the micro water pump has a large axial movement, and the auxiliary seal and the shaft have a large interference, and the moving ring cannot move flexibly on the shaft. When the micro water pump is turned over, the moving and static rings are worn out, and the displacement cannot be compensated. Countermeasures: When assembling the mechanical seal, the axial movement of the shaft should be less than 0.1 mm, and the interference between the auxiliary seal and the shaft is moderate. While ensuring the radial seal, the movable ring can be moved flexibly on the shaft after assembly (handle (The ring presses toward the spring to spring back freely)

      2. Insufficient amount of lubricating oil on the sealing surface causes dry friction or roughness on the sealing end surface

      Countermeasures: The height of the lubricating oil in the oil cavity of the micro water pump should be higher than the sealing surface of the dynamic and static rings.