HPL HPG HPLP Series HPG3A0D55C3U2 HPLPA114DDDG3G3B0 High-Pressure External Gear Oil Pump
| Model Number | HPG3A0D55C3U2 |
|---|
Product Description
OEM Hydraulic Pump HPL HPG HPLP Series HPG3A0D55C3U2 HPLPA114DDDG3G3B0 High-Pressure External Gear Oil Pump
Rated pressure: Up to 20MPa.
Maximum flow rate: approximately 6L/min.
Displacement: According to the characteristics of the HGP-3A series, the displacement range is usually between 2 and 35cc/rev. Specifically, for HPG3A0D55C3U2, the displacement may be around 5.5cc/rev.
Speed range: The maximum speed can reach 5000 revolutions per minute.
Pressure fluctuation: The pressure pulsation at the outlet can be controlled within 1%.
Connection method: SAE 2-bolt, DIN 4-bolt or European 4-bolt flange connection may be adopted, and the interface specification may be U2 (1 5/16″-12UNF, 1 1/16″-12UN).
Weight: Approximately 4 kilograms.2. Working Principle:
HPG3A0D55C3U2 belongs to external gear pumps. Inside the pump housing, there is an external meshing gear. The front and rear end faces of the gear are covered by end covers. Many sealed working chambers are formed between the pump housing, the end cover and the grooves of each gear tooth. When the driving gear drives the driven gear to rotate, the volume of the sealed working chamber in the left oil suction chamber gradually increases due to the gradual disengagement of the gear teeth, and the pressure drops accordingly, thus drawing oil from the oil tank and filling the entire tooth groove space. Subsequently, driven by the rotation of the gears, the oil is carried to the right pressure oil chamber. On one side of the oil pressure chamber, as the gear teeth gradually engage, the volume inside the sealed working chamber continuously decreases, causing the oil to be squeezed out and the pressure to rise, thus completing the oil suction and pressure processes.
3. Product Features and Advantages:
High strength and lightweight: It adopts a high-strength aluminum alloy shell, which is light in weight, easy to install and transport, and also has good compressive resistance.
Smooth transmission: Alloy steel hard-surfaced gear transmission ensures smooth operation, low noise, excellent wear resistance and a long service life.
High efficiency: Equipped with an automatic compensation mechanism for axial and radial clearances, the oil pump can maintain high volumetric efficiency and high mechanical efficiency for a long time.
Strong anti-pollution ability: Composite material bearings and high-performance sealing components have a small starting torque, good sealing performance, and strong anti-pollution ability, enabling efficient operation under harsh working conditions.
High precision: Precision gear processing, reaching national standard grade 7 gears, with small fluctuations, high pressure, and stable product performance.
4. Usage functions and purposes:
As a power component in the hydraulic system, HPG3A0D55C3U2 is mainly used to convert mechanical energy into hydraulic energy, providing pressure oil for the hydraulic system to drive the operation of hydraulic actuating elements such as hydraulic cylinders and hydraulic motors, and to achieve various actions of mechanical equipment, such as linear motion and rotational motion.
5. Applicable machines and scenarios:
Widely used in hydraulic systems of agricultural machinery, construction machinery, building machinery, textile machinery, mining machinery, lifting and transportation industries and other fields, such as tractors, excavators, loaders, cranes and other equipment.
6. Similar models:
Other models in the HGP-3A series, such as HGP3A0D08C3U2, HGP3A0D16C3U2, HGP3A0D25C3U2, etc., have the same structure and working principle, but differ in parameters such as displacement and pressure.
7. Precautions for Use
Before starting: Hydraulic oil must be filled into the pump chamber and the suction pipeline. Open the exhaust valve to release air. Dry operation is strictly prohibited. Check the concentricity of the coupling between the pump and the motor, with a deviation of no more than 0.1mm. At the same time, check the sealing of the suction pipeline to ensure there is no air leakage. The suction height is generally no more than 3m.
During operation: To ensure the cleanliness of the hydraulic oil, a 100-200 mesh suction filter can be installed and the filter residue should be cleaned regularly. Monitor the temperature of the pump body. The shell temperature should be ≤70℃, the bearing temperature should be ≤80℃, and the outlet pressure must not exceed the rated value. If any abnormal sounds are detected, such as shrill noises or knocking sounds, the machine should be stopped immediately for inspection.
After the machine stops: The outlet valve should be closed first, and then the power supply of the motor should be cut off to prevent the medium from flowing back and impacting the gears. If the pump is to be shut down for a long time, the medium in the pump cavity should be drained, anti-rust oil should be applied to the metal parts, and the bearing grease should be replaced regularly.
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