How to adjust the concentricity of the motor and pump shaft of the mud pump

5. Common faults and troubleshooting methods of pumps Fault 1: Pump vibration Causes: The pump shaft is not concentric with the diesel engine (or motor), the impeller is unbalanced, and the bearing is damaged Solution:

Adjust the concentricity, balance test the impeller, and replace the bearing Fault 2: The pump is slow to water Reason: The gap between the front liner and the impeller is large, the water outlet pipe cannot seal the air, and the exhaust is full Solution:

Adjust the gap, adjust the outlet pipeline, and install the vacuum device Fault 3: The pump does not absorb water Reason: insufficient water infusion, air in the pump cannot be discharged, air leakage in the suction pipe, and large gap between the front liner and the impeller Solution:

Continue to pour and divert water, check whether the pipeline is leaking, and adjust the gap between the impeller and the front liner Fault 4: The outlet pressure is small and the flow rate is small Reason: There is air in the pump, the gap between the impeller and the front liner is large, the clutch is not tightly closed, and the impeller or liner is worn Solution:

Drain the gas in the pump, adjust the clearance, adjust the clutch friction plate clearance, and replace the impeller or liner Fault 5: The pump wears out quickly Causes: poor construction environment (large particles), long conveying distance, long inlet pipeline Solution:

Replace the sand field, add afterburner units, shorten the length of the inlet pipe and reduce cavitation Fault 6: Impeller journal wears fast Causes: low head of high-pressure water pump, misalignment of packing, pump shaft and back cover are not centered Solution:

Replace the high-pressure pump higher than the head of the slurry pump, replace the packing, and adjust the concentricity.

Are you sure you can rule out other factors from the vibration of this pump? Could it be that the pump seat is unstable? Tighten the anchor bolts, bushings and sleeves worn or damaged?

Have you ever oiled the bearing? If the first few items are excluded, there is only one concentricity, which is simple to say, but it is difficult to master without a certain amount of experience. If your pump is under warranty, it is recommended to contact the merchant.

Finally, it is recommended that you try to close the outlet valve a little smaller.

The concentricity of the motor and pump shaft of the vertical mud pump is fixed and cannot be adjusted. It is possible that the water blades are damaged and cause vibration.

Do you check the bearing if there is a problem??? Bearing wear can cause genuine asymmetry.

I don't know if you are talking about a vertical double-foundation axial flow pump, if so, first install the axial flow pump, and be sure to install it horizontally to ensure that the coupling does not deviate from the level. Then put the motor horizontally on the basis of the motor, let the motor coupling and the water pump coupling slowly align, and then adjust the coupling of the water pump and the motor through the telescopic shaft, so that a smooth combination can be achieved, and the pump has high operating efficiency and low noise.

Ganzhou Water Pump Manufacturing **** is a private enterprise built in the fifties in the middle section of the national designated pump production enterprise Qi Ye Yuanganzhou Pump Factory. Ganzhou Water Pump Manufacturing Co., Ltd. is the backbone enterprise of China's general mechanical pumps, a professional manufacturer with a long history and many varieties of pump factories in East China, and a comprehensive enterprise with pump design, manufacturing and complete sets of equipment project service capabilities. The company covers an area of 60,000 square meters, with fixed assets of hundreds of millions of yuan, an annual production capacity of 10,000 sets, and a production and establishment of metalworking, first-class, container and other workshops.

The company insists on survival by quality and development by integrity. The main products are: axial flow pumps, mixed-flow pumps, double-suction pumps, fire pumps, oil pumps, chemical pumps, corrosion-resistant pumps, multistage pumps, horizontal vertical single-stage multistage pumps.

Guangzhou Foshan users: Guangzhou Panyu District Dongchong Water Conservancy Institute, Guangzhou Huadu District Water Conservancy Bureau, Nanyuan Water Conservancy and Hydropower Construction Company, Shunde Xingtan Qingyun Drainage Station, Shunde Jun'an Lingyan Electric Row Station, Shunde Leliule North Electric Row Station, Shunde Ronggui Xinyong Electric Row Station, Shunde Ronggui Fei'e Electric Row Station, Shunde Le Liutangyuan Electric Row Station, Shunde Longjiang Wan'an Electric Row Station.

In recent years, it has been widely used in the Pearl River Delta.

If you are interested, please enter my space to sell more Lingjie and provide you with satisfactory service!

Contact: Mr. Mo.

When the two devices are installed and connected, they can be as required by the manual.