Design and selection points of p50 gear pump

Design and selection points of p50 gear pump

As a core component in the field of hydraulic transmission, p50 gear pump, with its compact structure and stable pressure characteristics, shows its strong adaptability in many industrial fields. This article will introduce you to the design characteristics of this product and the key points of purchase.

1. Define the performance requirements

(1) Flow requirements

Flow rate is one of the key performance indicators of gear pumps. In the design and selection, based on the actual working conditions to determine the required flow. For example, in the hydraulic system to drive the hydraulic cylinder, according to the working speed of the hydraulic cylinder, piston area and other parameters, to accurately calculate the flow required by the system. If the flow is not enough, the equipment will run slower, affecting the efficiency of the work; flow is too large, it will cause energy waste, and may even damage the system components.

(2) Pressure indicators

It is extremely important to specify the system working pressure. The rated pressure of the gear pump must be greater than the normal operating pressure of the system to cope with possible instantaneous pressure spikes. For example, in the high-pressure cleaning equipment, the pump needs to provide a high enough pressure, so that the water flow has a strong impact to clean the dirt. If the pressure of the pump is not selected properly, the equipment may not work properly, and in serious cases, it may cause safety problems.

2. Consideration of structural design

(1) Gear type

Gear pumps mainly have two types of gears: external and internal. External gear pump structure is simple, easy to manufacture, widely used, but relatively noisy during operation; internal gear pumps are compact, small flow pulsation, low noise, suitable for high space requirements and noise-sensitive occasions. The design needs to be based on the specific application scenarios to choose the appropriate gear type.

(2) Pump body structure

The structural design of the pump body affects the performance and reliability of the gear pump. Reasonable pump body structure can effectively reduce leakage and improve volumetric efficiency. For example, the use of high-strength, good sealing of the pump body materials, and optimize the matching accuracy of the pump body and gears, can reduce the leakage of liquid from the high-pressure area to the low-pressure area, improve the overall performance of the pump.

3. Material selection points

(1) Gear material

Gear is the core component of the gear pump, the material needs to have good wear resistance, strength and toughness. For general working conditions, high-quality carbon steel can be used; in high-speed, heavy-duty or corrosive media environment, it is necessary to use alloy steel or special materials, such as stainless steel, etc., in order to ensure that the gears in poor conditions can still work properly, to extend the service life of the gear pump.

(2) Seal materials

The choice of sealing material is directly related to the sealing of the gear pump. Common sealing materials are rubber, PTFE and so on. In different working temperatures, pressures and media environments, it is necessary to choose the appropriate sealing materials. For example, when conveying high-temperature media, high-temperature resistant sealing materials need to be used to prevent the seals from aging and deformation due to high temperature, resulting in leakage.

4. Follow the selection process

(1) Determine the type

According to the working pressure, flow, speed and other parameters to determine the initial type of gear pumps, such as low-pressure pumps, medium-pressure pumps or high-pressure pumps, quantitative pumps or variable pumps. For example, for the flow demand is stable, the cost control is more stringent occasions, you can give priority to quantitative pumps; while in the flow demand changes in the system, variable pumps can better achieve energy saving.

(2) brand and quality assessment

When screening in the many gear pump brands, it is necessary to examine the brand's reputation, product quality, after-sales service and other aspects. Choosing a well-known brand and reliable quality products can reduce the equipment failure rate and improve the stability and reliability of production. Meanwhile, good after-sales service can provide timely support when equipment problems occur and reduce downtime.Hebei Runhe Hydraulic Machinery Co., Ltd is a leading manufacturer specializing in hydraulic system solutions with more than twelve years of production experience.

 The design and selection of p50 gear pump requires comprehensive consideration of performance requirements, structural design, material selection and following a scientific selection process. Only each link to do precise control, in order to ensure that the gear pump in the actual application to play the best performance, for industrial production to provide reliable power support.

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