Pump Impeller Fixing Method Detailed
Mar 20, 2024| First, keyway method
The key way is the most common way of fixing the pump impeller. It is made by grooving the shaft and the impeller inside, and then making a steel key according to the shape of the groove, loading the steel key into the groove, and then using the steel key to fix the shaft and the impeller tightly together. This method is suitable for small pumps and lighter shaft and impeller masses. Its advantages are low manufacturing cost and wide application range, but the disadvantages are also obvious, because the steel bond is easy to break under the influence of force.
Second, the cone method
The cone method is a fixed method by inserting the impeller axially so that it is closely connected with the shaft. This method is suitable for medium and large pumps and pumps under heavy load conditions. Its advantage is high reliability, for high pressure and large flow of the pump, the advantages of the cone method is more obvious.
Third, bolt method
The bolting method is the way in which the impeller and the shaft are fixed together by bolts. The bolt is installed directly in accordance with the wheel hub, and the advantage is that the impeller and shaft can be fixed more closely, which is suitable for large pumps and high flow and high pressure pumps.
In short, different pump types and working conditions need to choose a suitable fixing method to ensure the normal use and long life of the pump. At the same time, no matter what kind of fixed method is used, it is necessary to operate in strict accordance with the relevant operating procedures to ensure the safe and reliable operation of the pump.
In this paper, the fixing methods of pump impeller are introduced in detail, including keyway method, cone method and bolt method. These fixing methods play an important role in the design of the pump, we must choose different fixing methods according to different pump types and working conditions, and operate in strict accordance with the rules to ensure the normal operation of the pump.