CN220396108U - Submersible electric pump rotating shaft supporting structure - Google Patents

Abstract

The utility model discloses a rotary shaft supporting structure of a submersible electric pump, which comprises a rotary shaft body, a rotor, impellers, a supporting base and a shell, wherein the upper end of the rotary shaft body is fixedly connected with the rotor, a deep groove ball bearing is fixedly connected between the rotary shaft body and a shell, the lower end of the rotary shaft body is fixedly connected with the impellers, the bottom of the rotary shaft body is provided with the supporting base, the bottom of the rotary shaft body is connected with the supporting base, the supporting base comprises a fixing plate, a connecting frame and a supporting block, the fixing plate is fixedly connected to the side wall of the shell, the supporting block is positioned under the rotary shaft body, and the connecting frame is fixedly connected between the supporting block and the fixing plate. According to the utility model, the support seat is arranged at the bottom of the rotating shaft body, and the rotating shaft body is axially supported by the support seat, so that the axial gravity born by the rotating shaft body is conveniently lightened, and the smoothness of the rotating shaft body during rotation is improved.

Description

Submersible electric pump rotating shaft supporting structure

Technical Field

The utility model relates to the technical field of submersible electric pumps, in particular to a rotary shaft supporting structure of a submersible electric pump.

Background

The working principle of the submersible electric pump is that electric energy is converted into mechanical energy, and liquid in the water pump is compressed and conveyed through the mechanical energy. The structure of the device comprises a motor, a water pump, a connecting pipeline and the like, wherein the motor and the water pump are core components of the whole device. The motor provides power, and the impeller in the water pump is driven to rotate through electric power, so that the liquid is sucked in, compressed and then conveyed out, and the function of conveying water is realized. The submerged motor pump is widely applied to the fields of agricultural irrigation, urban water supply, petrochemical industry, mine drainage and the like.

At present, the submerged motor pump in the market is through a plurality of impellers of stack on the pivot surface to increase submerged motor pump's lift and pressure, but, the pivot body is as rotating part but bear great weight, leads to the pivot not enough stable in rotating, and the bearing that the casing is connected bears great frictional force, leads to submerged motor pump work unsmooth, influences submerged motor pump's normal work. For this reason, a new solution needs to be designed to solve.

Disclosure of Invention

The utility model aims to provide a rotating shaft supporting structure of a submersible electric pump, which solves the problem of overlarge bearing of a rotating shaft caused by superposition of a plurality of impellers on the surface of the rotating shaft of the submersible electric pump in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a submerged motor pump pivot bearing structure, includes pivot body, rotor, impeller, support base and shell, the upper end fixedly connected with rotor of pivot body, fixedly connected with deep groove ball bearing between pivot body and the casing, the lower extreme fixedly connected with impeller of pivot body, the bottom of pivot body is equipped with the support base, the bottom of pivot body is connected with the support base, the support base includes fixed plate, link and supporting shoe, fixed plate fixed connection is at the lateral wall of shell, the supporting shoe is located under the pivot body, fixedly connected with link between supporting shoe and the fixed plate.

As an improvement of the technical scheme, the upper surface of the supporting block is provided with an embedded groove, a rotating seat is arranged in the embedded groove, and the rotating seat is connected with the supporting block in an interference fit manner.

As an improvement of the technical scheme, the surface of the rotating seat is provided with a conical groove, the inner wall of the conical groove is provided with uniformly distributed rolling needles, and the rolling needles are in rotary connection with the rotating seat.

As an improvement of the technical scheme, the bottom of the rotating shaft body is provided with a supporting head, and the end face of the supporting head is provided with a conical surface.

As an improvement of the technical scheme, the surface of the fixing plate is provided with a mounting hole, and a fixing bolt in threaded connection with the shell is arranged in the mounting hole.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the support seat is arranged at the bottom of the rotating shaft body, and is used for axially supporting the rotating shaft body, so that the axial gravity born by the rotating shaft body is reduced, the smoothness of the rotating shaft body during rotation is improved, and the support seat is fixedly connected with the shell, so that the gravity of the submersible electric pump is conveniently transmitted to the shell, and the influence on the working stability of the submersible electric pump due to the bearing of an internal structure is avoided.

Drawings

FIG. 1 is a schematic view of the internal structure of a rotary shaft supporting structure of a submersible electric pump according to the present utility model;

FIG. 2 is a schematic diagram of a connection structure between a shaft body and a supporting block according to the present utility model;

fig. 3 is a schematic cross-sectional view of a support base according to the present utility model.

In the figure: the device comprises a rotating shaft body (1), a rotor (2), an impeller (3), a supporting base (4), a shell (5), a deep groove ball bearing (6), a fixed plate (7), a connecting frame (8), a supporting block (9), an embedded groove (10), a rotating seat (11), a conical groove (12), a needle roller (13), a supporting head (14), a conical surface (15), a mounting hole (16) and a fixing bolt (17).

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Referring to fig. 1-3, the present utility model provides a technical solution: the utility model provides a submerged motor pump pivot bearing structure, including pivot body 1, rotor 2, impeller 3, support base 4 and shell 5, the upper end fixedly connected with rotor 2 of pivot body 1, fixedly connected with deep groove ball bearing 6 between pivot body 1 and the casing, the lower extreme fixedly connected with impeller 3 of pivot body 1, the bottom of pivot body 1 is equipped with support base 4, the bottom of pivot body 1 is connected with support base 4, support base 4 includes fixed plate 7, link 8 and supporting shoe 9, fixed plate 7 fixed connection is at the lateral wall of shell 5, supporting shoe 9 is located under pivot body 1, fixedly connected with link 8 between supporting shoe 9 and the fixed plate 7.

Further improved, the embedding groove 10 has been seted up to the upper surface of supporting shoe 9, and the inside of embedding groove 10 is equipped with rotates seat 11, rotates seat 11 and supporting shoe 9 interference fit and is connected, through having seted up embedding groove 10 on the surface of supporting shoe 9, conveniently will rotate seat 11 and supporting shoe 9 and carry out fixed connection, and interference fit's connected mode, has effectively guaranteed the stability of being connected between supporting shoe 9 and the rotating seat 11.

Further improved, the surface of the rotating seat 11 is provided with the conical groove 12, the inner wall of the conical groove 12 is provided with the rolling needles 13 which are uniformly distributed, the rolling needles 13 are rotationally connected with the rotating seat 11, and the conical groove 12 with the rolling needles 13 is arranged on the surface of the rotating seat 11, so that the rotating shaft body 1 is conveniently axially supported, the axial bearing capacity of the rotating shaft body 1 is improved, and the rotating smoothness of the rotating shaft body 1 is ensured.

Further improved, the bottom of the rotating shaft body 1 is provided with a supporting head 14, the end surface of the supporting head 14 is provided with a conical surface 15, by arranging the supporting head 14 with the conical surface 15 at the bottom of the rotating shaft body 1, the conical grooves 12 on the surface of the mixed action is convenient to match with each other, so that the rotating shaft body 1 is convenient to support, and meanwhile, the rotating shaft body 1 is convenient to rotate.

Specifically, the mounting hole 16 has been seted up on fixed plate 7 surface, is equipped with in the mounting hole 16 with shell 5 threaded connection's fixing bolt 17, through having seted up mounting hole 16 on fixed plate 7 surface, conveniently utilized fixing bolt 17 and shell 5 to carry out fixed connection, conveniently shift the bearing of pivot body 1 to shell 5.

According to the utility model, the support seat is arranged at the bottom of the rotating shaft body 1, the rotating shaft body 1 is axially supported by the support seat, so that the axial gravity borne by the rotating shaft body 1 is reduced, the smoothness of the rotating shaft body 1 in rotation is improved, and the gravity of the submersible electric pump is conveniently transmitted to the housing 5 by fixedly connecting the support seat with the housing 5, so that the influence on the working stability of the submersible electric pump due to the bearing of an internal structure is avoided.

When the rotary shaft body 1 is in operation, the gravity of the rotor 2 and the impeller 3 is directly transmitted to the surface of the rotary shaft body 1, the supporting block 9 axially supports the rotary shaft body 1 from the bottom of the impeller 3, the pressure of the deep groove ball bearing 6 between the rotary shaft body 1 and the shell 5 is effectively reduced, the precision of the rotary shaft body 1 in rotation and the rotating smoothness are improved, the rotor 2 drives the rotary shaft body 1 to rotate after the submersible pump is electrified, so that the impeller 3 is synchronously rotated, and the supporting head 14 at the bottom of the rotary body is rotationally connected with the rotating seat 11 in the supporting block 9, so that the rotating smoothness of the rotary shaft body 1 is ensured.

While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (5)

1. The utility model provides a submerged motor pump pivot bearing structure, includes pivot body (1), rotor (2), impeller (3), support base (4) and shell (5), its characterized in that: the novel rotary shaft comprises a rotary shaft body (1), wherein the upper end of the rotary shaft body (1) is fixedly connected with a rotor (2), a deep groove ball bearing (6) is fixedly connected between the rotary shaft body (1) and a shell, an impeller (3) is fixedly connected with the lower end of the rotary shaft body (1), a support base (4) is arranged at the bottom of the rotary shaft body (1), the bottom of the rotary shaft body (1) is connected with the support base (4), the support base (4) comprises a fixing plate (7), a connecting frame (8) and a supporting block (9), the fixing plate (7) is fixedly connected with the side wall of the shell (5), and the supporting block (9) is located under the rotary shaft body (1), and the connecting frame (8) is fixedly connected between the supporting block (9) and the fixing plate (7).

2. The submersible pump rotary shaft support structure of claim 1, wherein: an embedded groove (10) is formed in the upper surface of the supporting block (9), a rotating seat (11) is arranged in the embedded groove (10), and the rotating seat (11) is connected with the supporting block (9) in an interference fit mode.

3. The submersible pump rotary shaft support structure of claim 2, wherein: the surface of the rotating seat (11) is provided with a conical groove (12), the inner wall of the conical groove (12) is provided with uniformly distributed rolling pins (13), and the rolling pins (13) are rotationally connected with the rotating seat (11).

4. The submersible pump rotary shaft support structure of claim 1, wherein: the bottom of the rotating shaft body (1) is provided with a supporting head (14), and the end surface of the supporting head (14) is provided with a conical surface (15).

5. The submersible pump rotary shaft support structure of claim 1, wherein: the surface of the fixing plate (7) is provided with a mounting hole (16), and a fixing bolt (17) in threaded connection with the shell (5) is arranged in the mounting hole (16).