The working principle and application scope of gear oil pump

The gear oil pump is a horizontal slewing gear pump, which is divided into two types: a motor driven type and a diesel engine. It is suitable for conveying various kinds of oil and other lubricious medium liquids, such as heavy oil, petroleum, etc. The liquid temperature does not exceed 60°C. However, it does not apply to high-sulfur, corrosive, hard particles, and fiber-containing fluids. It is also not suitable for transporting highly volatile, low flash point fluids, such as: Gasoline, benzene, etc.

The gear oil pump mainly consists of gears, shafts, pump bodies, pump covers, bearing bushes, and shaft end seals. The gears and shafts are strictly heat-treated, with high hardness and wear resistance, and are mounted in the shaft sleeves together with the shaft. All moving parts in the pump are lubricated with the media they convey. Hardened surface residue pump 2) The four bearing sleeves in the pump are floatingly installed in the pump body, and the end face interval is automatically adjusted according to the working pressure. Therefore, the pressure of the pump is stable, the output flow pulsation is small, and the volumetric efficiency is high. The gear oil pump is an important component that lifts the low-pressure oil in the tank to the high-pressure oil that can perform work by rolling and meshing a pair of involute gears with the same parameters and structures. It is a power device that converts the mechanical energy of the engine into hydraulic energy. Gear pump flow, reliability. In the course of its use, it is prone to wear failures. Care should be taken. Internal wear of the internal parts of the pump can cause internal leakage. Among them, the leakage area between the floating sleeve and the gear end face is large, which is the main part of the internal leakage. This part of the leakage accounted for 50% to 70% of the total internal leakage. The volumetric efficiency of gear pumps with worn-in leakage is reduced, and the pump output power is much lower than the input power. All of its losses are converted into heat energy, which can cause the oil pump to overheat. If the bonding plane is pressed tightly, there will be a small amount of movement of the floating bushes during operation to cause wear. As a result, the farm implements can be lifted slowly or cannot be lifted. Such a floating bushing must be replaced or repaired.