Submersible motor and deep-well pump motor assembly

Abstract

The utility model relates to deep well pump technical field discloses a kind of submersible motor and deep well pump motor assembly, and submersible motor includes motor cylinder, motor shaft and sealing mechanism. Among them, motor cylinder is vertically arranged;Motor shaft is coaxially inserted in motor cylinder and the upper end of motor cylinder is stretched to export driving force to pump body with upper end;Sealing mechanism is arranged between motor cylinder and motor shaft, for sealing the upper end of motor cylinder, sealing mechanism includes flange mechanical seal assembly, sealing bearing and annular sealing cover sequentially arranged from bottom to top, and flexible sealing structure is equipped between sealing bearing and motor shaft, and flexible sealing structure is elastically abutted sealing bearing, motor shaft, flange mechanical seal assembly and annular sealing cover under the extrusion effect of flange mechanical seal assembly and annular sealing cover. By the above technical scheme, multiple sealing protection of submersible motor output end is realized, effectively prevent the fluid outside motor from seeping into motor interior from the gap between motor shaft and mechanical sealing structure.

Images