The structure of low viscosity gear oil pump
The structural components of low-viscosity gear oil pumps mainly include the following key parts:
1. Gears
Driving gears and driven gears: These are the core components of gear oil pumps. They transmit power and generate pressure by meshing with each other to drive the flow of lubricating oil. For low-viscosity gear oil pumps, the design of gears may focus more on reducing friction and wear to improve efficiency.
2. Shafts
The gears and shafts are installed together in replaceable sleeves to ensure stable rotation of the gears. The shaft end seal ensures its sealing and prevents oil leakage.
3. Pump body
The pump body is the outer shell of the gear oil pump, which plays the role of supporting and fixing various components. It is usually made of strong materials such as cast iron or aluminum to withstand the internal pressure and external environment.
4. Pump cover
The pump cover and the pump body together form the sealed cavity of the gear oil pump to ensure that the oil circulates in the pump without leakage. The shafts of the two gears are installed in the bearing holes of the two pump covers respectively to achieve stable rotation.
5. Bearings
The bearings are used to support the rotation of gears and shafts to ensure their smooth operation. In low-viscosity gear oil pumps, the selection and design of bearings may focus more on reducing friction and wear to improve the efficiency and service life of the pump.
6. Sealing device
Including shaft end seals, etc., to ensure that the medium in the pump does not leak and prevent outside air from entering the pump. For low-viscosity oil, the design of the sealing device may need to be more sophisticated to cope with the fluidity of the oil.
7. Safety valve
As an overload protection device, when the system pressure exceeds the set value, the safety valve will automatically open and release part of the pressure to protect the system. This is an important component to ensure the safe operation of the gear oil pump.
8. Other parts
Such as needle bearings, keys, screws, etc., these parts work together to ensure the normal operation of the gear oil pump. In low-viscosity gear oil pumps, the selection and installation of these parts also need to consider the characteristics of the oil and the working conditions of the pump.
Specific design features
For low-viscosity gear oil pumps, their transmission gears may adopt specific tooth shapes and materials to reduce friction and wear and improve the efficiency and service life of the pump. For example, the transmission gear may adopt an involute tooth shape or a circular arc cycloid tooth shape, and be made of materials with good wear resistance.
In addition, in order to improve the acid resistance and wear resistance of the pump, wear-resistant materials such as ceramic fiberboard may be installed inside the pump body.
In summary, the structure of the low-viscosity gear oil pump includes gears, shafts, pump bodies, pump covers, bearings, sealing devices, safety valves and other parts. These components work together to achieve efficient and stable oil delivery. At the same time, in view of the characteristics of low-viscosity oil, the design of the pump also focuses on reducing friction and wear, and improving the efficiency and service life of the pump.
