Water ring vacuum pump shaft vulnerability - the cause and the maintenance

most of shenzhen water ring vacuum pump of the pump shaft bending is mainly due to the sleeve imbalance caused by the shortage and impeller rigidity, lead to deformation when running. Shaft bending direction and size can be through the following method: flat on the shaft bracket, the two points ( Can be the center of the pump shaft hole or shaft neck position) Adjust to the same height, choose several isometric parts on axis, in a rotating shaft with dial gauge measuring radial runout of the four direction ( Once per rotate 90 degrees) And recorded. Based on these data, be able to get four directions of bending value, with graphic method can work out the direction and size of maximum bending, which can be straightened. Water ring vacuum pump shaft cracks and fractures are often occur in the local stress concentration, such as the keyway edges and diameter of mutation. Is the usual cause of damage to the vibration caused by fatigue damage.

water ring vacuum pump shaft such as a fatigue crack ( The fracture of precursor) And should be replaced in a timely manner. If due to objective factors need to continue to use, temporarily unable to change, temporary remedy is to repair weld crack. Should be paid attention to when using the pump shaft after repair welding, the change of the repair welding area, so as to avoid an accident. Is the main reason of the fatigue damage during the running of pump shaft of pump cavity gas force on the pump shaft, also known as the radial force. Except for the root cause of the water ring vacuum pump radial stress, unreasonable structure is the important reason for the pump shaft fatigue damage can not be ignored.

the water ring vacuum pump shaft and impeller clearance fit for level, keyway not 0 type sealing ring seal. the liquid ( Especially when the corrosive liquids in the chemical industry used as liquid ring) Through fit clearance and slotting into the shaft hole of shaft and the impeller shaft hole, which greatly reduce the fatigue strength. After the corrosion and wear, fit clearance increase ( Some are grinding into oval shaft hole) , this not only affect performance, and aggravate vibration and promote the fatigue fracture. General water ring vacuum pump of pump shaft without heat treatment, low fatigue strength. In order to prevent fracture, water pump shaft must be at least, quenching and tempering and nitriding under conditions allow. Sudden changes in design, it is necessary to avoid cross section. Should not be used during the transition in sharp corners, but should use rounded corners connection.

surface finish should not be low, especially in the shaft is easy to fracture. The processing, the circumference of the different diameter of axle transition processing should guarantee the quality, and strictly carried out in accordance with the drawings required size and finish. shaft and the transition to perform surface must not have tool marks, scratches, bumps and other defects. shaft fatigue damage does great harm to production, is one of the focuses of the user. The solution is to check the pump shaft according to the size of the radial force of fatigue strength. When using corrosive gas and liquid ring, the corresponding corrosion resistant material should be used. Water ring vacuum water pump manufacturer in shenzhen of water ring vacuum pump of the pump shaft must after quenching and tempering, when processing must ensure the quality.

J&T INDUSTRY CO.,LTD. has famous reputation in worldwide.
J&T INDUSTRY CO.,LTD. is committed to supplying the consumer and our customers with the finest, high-quality products and to leading the industry in water pump pool cover drain pump.
Digging into our roots and acknowledging out heritage can be fruitful on both a high-quality and professional level of water pump.
Knowing what promotions are popular and get the most activity as water pump from current and potential customers can play a role in your overall strategy.
Further dialogue of JT between the approaches, the chapter concludes, could lead to actionable advice on more robust policies that drive both structural change and competitiveness upgrading.