Abstract：Taking an impeller as the important component of mine submersible pump,the stress and deformation analysis of the impeller were carried out.The analysis can provide a reference for improving the performance of submersible pumps and optimizing the structure of the impeller so as to guide the design and production.Using finite element analysis software ANSYS 13.0,and starting from the mine submersible pump actual operation condition,the stress and deformation of a submersible pump impeller were analyzed in the mutual action of coupling load.The results showed that:in coupling loading,impeller radial,circumferential and axial stress and the first principal stress were far less than impeller material strength limit.The maximum deformation position is in the flow field between blades of front and back cover plates on the outer edge of an impeller.The analysis is favorable to analyse the reason for impeller deformation failure,as well as to check the impeller force and design rationality.The result provides a sufficient theoretical basis for the design optimization and modification of a mine submersible pump impeller.

Keyword：mine submersible pump;impeller;coupling load;finite element analysis;deformation analysis;