Well vertical and horizontal dual-use submerged motor pump

Abstract

The invention discloses a well vertical and horizontal dual-use submerged motor pump. The well vertical and horizontal dual-use submerged motor pump includes a base, a thrust bearing assembly, a thrust disc, a lower guide bearing assembly, a rotor assembly, a stator assembly, a housing, an upper guide bearing assembly, an anti-sand ring, a water inlet joint, a guide casing, a flat lacing wire, a connection housing, an impeller, a pump shaft, a wire protection plate, a spherical support column, and an extrusion housing; the thrust bearing assembly includes a lower thrust bearing connection base and a thrust bearing and is characterized in that: a cylindrical circular hole is formed in the center of the lower end of the lower thrust bearing connection base, an inner end surface of the cylindrical circular hole is provided with a spherical groove protruding outward, and the spherical support column is inserted into the cylindrical circular hole and is pressed against the spherical groove via a spherical surface of the end surface. The well vertical and horizontal dual-use submerged motor pump is novel in structure, is stale in operation, is flexible in work, and is long in service life.

Description

technical field [0001] The invention relates to the technical field of mechanical engineering pumps, in particular to a vertical and horizontal dual-purpose submersible electric pump for wells. Background technique [0002] At present, the existing submersible electric pump is composed of a base, a thrust bearing assembly, a thrust plate, a lower guide bearing assembly, a rotor assembly, a stator assembly, a casing, an upper guide bearing assembly, a sand control ring, a water inlet section, a guide shell, It is composed of flat tie bars, connection shell, impeller, pump shaft, wire guard and extrusion shell. The thrust bearing assembly includes thrust bearing housing and thrust bearing. The lower guide bearing assembly includes lower guide bearing housing and guide bearing. The bearing assembly includes an upper guide bearing seat and a guide bearing. The stator assembly and the rotor assembly are arranged in the casing. The upper end of the motor shaft in the stator assemb...

AI Technical Summary

Problems solved by technology

[0002] At present, the existing submersible electric pump is composed of a base, a thrust bearing assembly, a thrust plate, a lower guide bearing assembly, a rotor assembly, a stator assembly, a casing, an upper guide bearing assembly, a sand control ring, a water inlet section, a guide shell, It is composed of flat tie bars, connection shell, impeller, pump shaft, wire guard and extrusion shell. The thrust bearing assembly includes thrust bearing housing and thrust bearing. The lower guide bearing assembly includes lower guide bearing housing and guide bearing. The bearing assembly includes an upper guide bearing seat and a guide bearing. The stator assembly and the rotor assembly are arranged in the casing. The upper end of the motor shaft in the stator assembly is fixedly connected with the pump shaft through a coupling, and the upper end of the motor shaft of the rotor assembly is connected to the upper guide bearing. The component is connected with the sand control ring and the shaft sleeve. The motor shaft at the lower end is connected with the thrust plate through the lower guide bearing assembly. The lower end of the thrust plate is provided with a lower thrust bearing connection seat. The nut passes through the threaded hole in the center of the base and conflicts with the installation spherical hole on the lower thrust bearing connection seat to achieve the supporting effect, and the end surface of the bolt is spherical, and the lower end of the base is fixedly connected with the pressure regulating diaphragm cover, and the base and the pressure regulating There is an up-regulating pressure film between the membrane covers, which is supported by a tension spring between the up-regulating pressure film and the pressure-regulating membrane cover, so as to facilitate the adjustment of the pressure in the pump when the submersible pump is submerged into a certain depth underwater. The pump shaft is installed in series. There are guide shell and impeller, the guide shell and the guide shell are fixedly connected by flat tie bars, the upper end of the guide shell is fixedly connected with the impeller through the connecting shell, the lower end is fixedly connected with the upper guide bearing assembly through the water inlet section, and the upper end of the impeller It is fixedly connected with the extruded casing, and its disadvantage is that this vertical submersible pump is generally used vertically, and in some special occasions it is also required to be used horizontally or inclined, but the existing submersible pump This requirement cannot be well met. The main reason is that there is a gap of 0.5mm between the thrust plate and the upper thrust bearing. When it is used horizontally or inclined, the assembly of the lower thrust bearing will move down. There are two spherical surfaces between the bearing connecting seat and the spherical support. After moving down, it will cause eccentric wear during operation, and in severe cases, it will cause jamming, which will cause damage to the motor.

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