Reasons and solutions for abnormal noise in gear pumps

If there is abnormal noise during the operation of a gear pump, it is usually a manifestation of problems within the pump or related systems, and timely diagnosis and corresponding measures need to be taken to solve them.

Here are some common reasons and corresponding solutions:

Analysis of the causes of abnormal noise

1. * * Lack of oil or poor oil quality * *: Insufficient oil quantity or deterioration of lubricating oil used can lead to poor lubrication of gears, resulting in increased friction noise.

2. * * Air in the medium * *: Air invades the pump body, especially during the start-up phase, forming cavitation and generating noise.

3. Improper assembly: Factors such as gear shaft misalignment, bearing wear, and improper gear clearance adjustment can all cause collision or vibration sounds.

4. * * Wear and aging * *: Components such as gears, shaft sleeves, and sealing rings wear out after long-term use, causing loose fit and generating noise.

5. * * External factors * *: Improper fixation of the base and misalignment of the coupling can indirectly cause vibration and noise in the pump body.

terms of settlement

1. * * Supplement high-quality lubricating oil * *: Check the oil level in the tank and replace it with new oil if necessary to ensure that the lubricating oil quality is qualified.

2. * * Exhaust and Bubble Removal * *: Open the vent valve on the top of the pump body until there are no bubbles in the liquid flowing out, and remove the internal air.

3. * * Adjustment and Calibration * *: Re check the assembly position of the pump to ensure that the gear pump clearance is appropriate and the bearing positioning is accurate.

4. * * Replace worn parts * *: Replace gears, shaft sleeves, and seals that are visibly worn and restore them to their original factory specifications.

5. * * Strengthen the foundation * *: Check whether the installation platform of the pump is stable, whether the screw connections are tight, and if necessary, strengthen the fixation.

6. * * Professional testing * *: In complex situations, it is best to contact the manufacturer or professional maintenance personnel for a detailed examination to avoid misdiagnosis or expand losses.

Through the above steps, most abnormal noise problems can be effectively alleviated or solved. Daily maintenance and upkeep are equally important for preventing these problems. Regular inspections and timely maintenance can significantly extend the service life of gear pumps.