How a gear pump works

Release time:

2022-05-25 13:22

The working principle of the gear pump: the active gear (outer rotor) with internal teeth drives the inner rotor to rotate in the same direction in the fully enclosed pump body. The pump body and a crescent plate on the front cover separate the suction port from the discharge port. When rotating, a negative pressure is formed at the suction port and the liquid is sucked in. The rotor transports the liquid to the discharge port and discharges the pump body under pressure to complete the liquid transfer. The pump is mainly composed of internal and external rotor, shaft, pump body, front cover, bracket, seal, bearing, etc. There are two types of seals: mechanical seals and packing seals. For high temperature, high viscosity and highly corrosive media, packing seals are selected. When transporting crystallizable materials, heat shields can be designed on the front cover and pump body, which can be heated and melted by steam during operation. The pump can be equipped with a valve. When the pump or piping system is overpressurized, the valve opens, forming an internal backflow, ensuring the system. Internal meshing gear pump internal parts wear, gear pump housing wear, oil seal wear, oil seal aging. Wear of the internal parts of the gear pump can lead to internal leakage. The large leakage area between the bushing and the gear end face is the main cause of oil leakage. Wear and leakage are the volumetric efficiency of gear pumps, resulting in the output power of gear pumps being much less than the input power.

Precautions for choosing a gear pump?

Important Considerations When Using Gear Pumps

Hydraulic pump is an important hydraulic power source, widely used in bending machines. A bending machine is a mechanical device used to bend sheet metal into a desired shape. During the operation of the bending machine, the hydraulic pump drives the hydraulic cylinder by providing high-pressure liquid, so as to realize the control of the bending machine.

Application of Hydraulic Pump in Injection Molding Machine

The application of hydraulic pumps on injection molding machines is very important. An injection molding machine is a device used to manufacture plastic products. Its working principle is to heat the plastic through a hydraulic system and inject it into the mold, and then cool it to form the desired product.

Application of gear pump in hydraulic press

The application of food packaging machinery plays a crucial role in the modern food industry. With the continuous development of the food industry and the increasing demand from consumers, the demand for food packaging machinery is also increasing. Food packaging machinery can not only improve the efficiency of food production, but also ensure the quality of food.

Hydraulic pumps are used in blow molding machines

Hydraulic pumps are often used in the hydraulic system of blow molding machines, because their high efficiency and stability make them an ideal choice.

Application of gear pump in pipe bending machine

Gear pump is a commonly used hydraulic transmission device, which is widely used in various mechanical equipment. In pipe bending machines, the application of gear pumps is particularly important. The pipe bending machine is a device used to process metal pipes into curved shapes. Its working principle is to use the power provided by the hydraulic system to drive the gear pump to send hydraulic oil to the hydraulic cylinder of the pipe bending machine, thereby making the pipe bending machine Able to complete bending operations. The gear pump has the advantages of simple structure, small size, and stable operation. It can provide stable hydraulic pressure and flow, ensuring that the pipe bending machine can complete the pipe bending task efficiently and accurately. Therefore, the application of gear pumps in pipe bending machines cannot be ignored.

Gear pump used in hydraulic station

Gear pump is a common and important hydraulic component, which is widely used in hydraulic stations. The hydraulic station is an indispensable equipment in industrial production. It is used to provide power and control the work of the hydraulic system. It has the characteristics of stable pressure and adjustable flow. As the core component of the hydraulic station, the gear pump undertakes the important task of converting mechanical energy into hydraulic energy. It uses the mutual meshing and rotation of gears to generate hydraulic energy, and transmits the fluid to various actuators in the hydraulic system through pipelines. Gear pumps have the advantages of simple structure, small size, and large output flow, so they are widely used in hydraulic stations.

Jiangsu Aoad Fluid Technology Co., Ltd.

Address: Economic Development Zone, Hai'an City, Jiangsu Province

Mobile: 86-15851282837

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E-mail:adltchen@ntokdo.cn

Jiangsu Aoad Fluid Technology Co., Ltd.