Generation and Solution of Abnormal Noise of Gear Pump

Noise is one of the most common faults of gear pump. Usually manifested as severe screaming, whistling, accompanied by gear pump heating, cavitation and other phenomena, causing early damage to the pump. There are many reasons leading to abnormal noise of gear pump. Because of the characteristics of gear pump itself, its flow rate, pressure fluctuation and noise are large. In addition, oil trapping, tooth shape design and parts accuracy are also important factors for introducing abnormal noise.
In recent years, gear pump technology has developed rapidly in our country, and the processing level of product parts has been greatly improved. Especially with the application of new technologies such as Du material sliding bearing and other new technologies in gear pump, the noise of gear pump deserves effective control. Especially in the application of walking machinery, the noise level of gear pump is much lower than that of its engine, and the obvious noise of gear pump can not be heard on the main engine. According to years of work experience, the abnormal scream noise of gear pump is mainly caused by the use of links. This paper will focus on the mechanism of gear pump noise and the factors that may cause abnormal noise of gear pump in use.

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