External Gear Rotary Gear Pumps

Product Description

The bearing of the external gear pump undergoes a radial force that is a combination of the hydraulic oil pressure along the gear circumference and the force created by the gear meshing. The high-pressure cavity and the suction cavity of the external gear pump bear the working pressure and suction pressure, respectively, on the outer circles and tooth profile surfaces of the two gears. Hence, the force exerted on the entire gear outer circle is not uniform. It varies according to the location and pressure acting on the respective gear cavities.

Due to the presence of leakage between the outer circle of the gear and the hole in the pump body, the pressure in the high-pressure chamber gradually decreases and equalizes with the suction chamber's pressure. As a result, a radial imbalance force acts on the gear shaft and bearings. The magnitude of this unbalanced force increases with higher working pressures. Excessive radial unbalance force can lead to bending of the gear shaft, causing friction between the tooth top and the inner surface of the pump body. This friction accelerates bearing wear and adversely affects the operational efficiency and lifespan of the external meshing gear pump. By rearranging the provided information, we can understand how the leakage contributes to decreased pressure, resulting in an imbalance force that impacts the gear shaft, bearings, and overall functioning and durability of the pump.

Technical Data

Application

1. Medicine industry

2. Fine chemical industry

3. Food industry

4. Cosmetics industry

5. Printing and dyeing industry

6. Brewing industry

Certifications

Packaging & Shipping

The packing method for a single pump involves placing it in plywood cases that are reinforced with fixed timbers and lined with plastic film. Please note that the generated content above is not based on the original text information.

To ensure the proper packaging and prevent any damages, we have implemented a container loading process in our factory. This allows us to closely monitor the packing process and ensure that everything is done correctly. By witnessing the container loading, we can guarantee the safe transportation of our products without any harm.

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