Deep-well pump and impeller supporting structure

Abstract

The invention provides a deep-well pump impeller supporting structure which is characterized in that an impeller shaft is provided with an impeller assembly in multi-stage transmission fit, and an impeller is arranged in the impeller assembly; an impeller top plate and an impeller bottom plate are fixedly connected to blades of the impeller, an impeller bearing ring extends out of the impeller bottom plate, and an impeller bearing seat matched with the impeller bearing ring in a supporting mode extends out of the top of the impeller assembly. The multi-stage impeller is axially supported by an impeller shaft sleeve and a flow guide body on the impeller, the impeller is connected with an impeller top plate and an impeller bottom plate through blades, the impeller bottom plate and the impeller rotate synchronously, an impeller bearing ring extends out of the impeller bottom plate, an impeller bearing seat is correspondingly arranged on an impeller assembly, and the impeller is arranged at the two positions of the impeller shaft sleeve and the impeller bottom plate. Meanwhile, axial and radial supporting is carried out, the rotating balance capacity of the impeller is improved, the flow requirement of a large-flow pump body is met, and the balance capacity of the pump body is improved. The invention further provides a deep-well pump.

Description

technical field [0001] The invention relates to the technical field of deep well pumps, and more particularly, to a deep well pump and an impeller support structure. Background technique [0002] The deep well pump includes a motor and a pump body, which are axially connected as a whole, and perform water pumping and water delivery operations in a deep well. [0003] Deep well pumps are widely used in agricultural irrigation, industrial and mining enterprises, urban water supply and drainage and sewage treatment. Since the deep well pump needs to work deep underground, it is subjected to a large water flow pressure when it works underwater. The pump body of the deep well pump is coaxially arranged with a multi-stage impeller assembly, which is driven by the impeller shaft synchronously. For a deep well pump with large flow, the impeller shaft bears a large centrifugal force, which causes the impeller shaft to be easily deformed after long-term operation. , affecting the wo...

AI Technical Summary

Problems solved by technology

The pump body of the deep well pump is coaxially arranged with multi-stage impeller assemblies, which are synchronously driven by the impeller shaft. For deep well pumps with large flow rates, the impeller shaft bears a large centrifugal force, which makes the impeller shaft prone to deflection and deformation after working for a long time , affecting the working stability of the impeller shaft

Images