Case-assembled submersible pump

The invention provides a case-assembled submersible pump, belonging to the field of submersible pumps. The submersible pump includes a housing, a rotating shaft arranged in the housing and coaxially,stator and rotor. The rotor is arranged on the rotating shaft. The shell comprises an upper guide bearing, an upper shell, a lower shell, a lower guide bearing and a base, wherein the lower shell is integrally formed of stainless steel material, the upper shell is integrally formed of cast iron material, the upper threaded stop ring and the upper shell are welded into an integral structure, and the lower threaded stop ring and the lower shell are welded into an integral structure. The invention can shorten the length of the submersible pump, improve the assembly efficiency and reduce the cost. 本发明提供了壳体组装式潜水泵，属于潜水泵领域，包括外壳，设在外壳内且同轴设置的转轴、定子和转子，转子设在转轴上，外壳包括依次连接的上导轴承、上壳体、下壳体、下导轴承和底座，所述下壳体为不锈钢材质体成型，所述上壳体为铸铁材质体成型，所述上螺纹止口圈与所述上壳体焊接为体结构，所述下螺纹止口圈与所述下壳体焊接为体结构。本发明可缩短潜水泵的长度，组装更加高效，降低成本。