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How to solve the failure of the vane pump
Posted By Cassidy vanepump
Body
- If the inner surface of the stator and the blade head are severely worn. At this time, if you carefully disassemble the Oil Pumps and take out the blades, you can see filaments sticking to the blade head under strong light. At this time, it can be changed to 38CrMoAIA and nitrided to Hv900. The wear of the stator and blades has been greatly improved.
- If the rotor is broken. At this time, the following measures can be taken: change the rotor material from 40Cr quenching HRc52 to 20Cr carburizing quenching, which can greatly improve the impact toughness of the rotor, and generally will not break, properly reduce the diameter of the small hole at the blade root and properly enlarge the blade slot The diameter of the distribution circle of the root holes is to increase the strength of the dangerous section; adhere to the process of drilling the blade root holes first and milling the blade grooves to avoid stress concentration; prevent foreign matter from being sucked into the pump; change the needle bearing to a ball bearing ( YB1 type vane pump).
- The vane pump has poor operating conditions. At this time, only changing the working conditions of the vane pump can be effective.
- When assembling the vane pump after disassembly and repair, you should refer to the working principle and structure diagram of the vane pump, grasp the size gap between each other, carefully clean, carefully assemble, and rotate flexibly before installing to the main engine.
- When the Vane Pumps Cartridge Kits shaft is broken or damaged, it should be carefully checked and targeted measures should be taken.
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