The difference between the two types of HYDRAULIC GEAR PUMP

HYDRAULIC GEAR PUMP is a rotary pump relying on the change and movements of the working volume formed between the pump cylinder and meshing gears to convey or pressure the liquid. The two closed spaces consist of two gears, a pump body, and a front and rear cover. When the gears rotate, the volume of the space on the side where the gears are disengaged increases from small to large, forming a vacuum to suck the liquid, and the volume of the space on the side where the gears mesh changes from large to large. Small, and the liquid is squeezed into the pipeline. The suction chamber and the discharge chamber are separated by the meshing line of two gears. The pressure at the outlet of the HYDRAULIC GEAR PUMP depends entirely on the resistance at the outlet of the pump.

Here is the content list:

• External engagement hydraulic GEAR PUMP

• INTERNAL HYDRAULIC GEAR PUMP

External engagement hydraulic GEAR PUMP

HYDRAULIC GEAR PUMP is a pump commonly used in hydraulic systems, which is divided into external gear pumps and internal gear pumps. External meshing HYDRAULIC GEAR PUMP is mainly composed of driving and driven gears, drive shaft, pump body, side plate, and sealing elements. Among them, the gears meshing with each other in the pump body, the two end covers, and the pump body form a sealed working volume. The meshing line of the gears separates the left and right chambers to form the oil suction and pressure chambers. When the gear rotates in the direction shown in the figure, the gear teeth in the oil suction chamber are continuously disengaged, so that the sealing volume of the oil suction side is continuously increased, forming a vacuum, and oil is sucked from the oil tank under the action of atmospheric pressure. when this part of the oil is driven by the rotating gear When entering the oil pressure chamber on the left side, the gear teeth in the chamber are continuously engaged, the sealing volume of the oil pressure side is continuously reduced, the oil is under pressure, and is continuously pressed out and enters the system, thus completing the oil absorption and pumping of the HYDRAULIC GEAR PUMP oil pressure process.

INTERNAL HYDRAULIC GEAR PUMP

The internal meshing HYDRAULIC GEAR PUMP is divided into involute tooth shape and cycloid tooth shape (rotor pump). The working principle of the internal meshing HYDRAULIC GEAR PUMP is the same as that of external gear pumps, and it also depends on the change of volume to realize oil absorption and oil pressure. However, to ensure that the suction and pressure ports are separated, a crescent partition should be added in the middle of the involute HYDRAULIC GEAR PUMP, and the cycloidal HYDRAULIC GEAR PUMP, since the difference between the two gears is only one tooth, the suction, and pressure can always be guaranteed when meshing. The pressure oil does not communicate and does not require a crescent partition.

For more questions about HYDRAULIC GEAR PUMP, please contact us. Years of research and development and manufacturing experience will provide you with more product and technical support! Our official website is www.zjkeister.com.