CN215292917U

CN215292917U - Axial flow pump

Info

Publication number: CN215292917U
Application number: CN202121369064.0U
Authority: CN
Inventors: 韩宗美
Original assignee: Hefei Xinhu Canned Motor Pump Co Ltd
Current assignee: Hefei Xinhu Canned Motor Pump Co Ltd
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2021-12-24
Anticipated expiration: 2031-06-18

Abstract

The utility model belongs to the technical field of axial-flow pump, a axial-flow pump is disclosed, include: a housing assembly provided with a water inlet and a water outlet; a stator assembly disposed within the housing assembly; the rotor assembly comprises a cylindrical rotor body and blades, the rotor body is embedded in the stator assembly in a floating mode, a plurality of blades are annularly arranged on the inner wall of the rotor body, and the rotor assembly can rotate relative to the stator assembly after the blades are powered on, so that the blades drive liquid to be conveyed from the water inlet to the water outlet. The rotor assembly of the axial flow pump is installed without a bearing, and transmitted liquid can be protected from being polluted.

Description

Axial flow pump

Technical Field

The utility model belongs to the technical field of the axial-flow pump, especially, relate to an axial-flow pump.

Background

At present, a pump body and a motor of an axial flow pump are of a split structure, and a common axial flow pump is formed by connecting the motor and a water pump through a coupler, so that the structure causes many problems, such as poor vibration resistance of the pump body caused by a cantilever beam structure of a long shaft; the friction between the impeller and the fixed impeller shell causes accidents; the long shaft tends to bend and malfunction the pump. The shaftless pump can integrate the motor and the water pump, thoroughly abandons the use of a long shaft in the axial flow pump, a water outlet flow passage of the pump does not need to be designed into a bent pipe to provide space for the motor and the shaft, and energy loss generated by a coupler is avoided, so that the efficiency of the pump can be obviously improved, the structure compactness is improved, the system arrangement is simple, and the pump has high practicability.

However, the conventional axial flow pump has a complicated structure, a bearing is required to fix the rotor, and the bearing is exposed in liquid and easily pollutes the transmitted liquid.

Therefore, an axial flow pump is needed to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an axial-flow pump, it need not the bearing and installs, can protect the liquid of transmission not contaminated, and simple structure.

To achieve the purpose, the utility model adopts the following technical proposal:

an axial flow pump is provided, comprising:

a housing assembly provided with a water inlet and a water outlet;

a stator assembly disposed within the housing assembly;

the rotor assembly comprises a cylindrical rotor body and blades, the rotor body is embedded in the stator assembly in a floating mode, a plurality of blades are annularly arranged on the inner wall of the rotor body, and the rotor assembly can rotate relative to the stator assembly after the blades are powered on, so that the blades drive liquid to be conveyed from the water inlet to the water outlet.

As a preferred technical scheme of the axial-flow pump, the housing assembly comprises a first housing, an installation housing and a second housing, the first housing and the second housing are respectively and hermetically connected to two ends of the installation housing, the stator assembly is installed in the installation housing, the water inlet is arranged at a first end of the first housing, and the water outlet is arranged at a second end of the second housing.

As a preferred technical scheme of axial-flow pump, first casing with all be provided with connecting portion on the second casing, connecting portion stretch into in the installation casing.

As a preferred technical scheme of axial-flow pump, first casing with install between the casing and the second casing with all be provided with the sealing washer between the casing.

As a preferred technical scheme of the axial flow pump, the blades are spiral.

As a preferred technical scheme of axial-flow pump, from being close to the one end of rotor body to keeping away from the one end of rotor body, the width of blade reduces gradually.

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

inlay in stator module with floating rotor body, rotor body can remove in axial certain limit, and rotor body's inner wall is fitted with a contraceptive ring and is equipped with a plurality of blades, and the circular telegram back rotor subassembly can rotate for stator module to make the blade order about liquid and carry to the delivery port from the water inlet. The rotor assembly of the axial flow pump is installed without a bearing, so that the transmitted liquid can be protected from being polluted, and the structure is simple.

Drawings

Fig. 1 is a schematic structural view of an axial flow pump provided by the present invention;

fig. 2 is a schematic structural diagram of the rotor assembly provided by the present invention.

Wherein, 1, a shell component; 11. a first housing; 111. a water inlet; 112. a connecting portion; 12. installing a shell; 13. a second housing; 131. a water outlet; 2. a stator assembly; 3. a rotor assembly; 31. a rotor body; 32. a blade; 4. and (5) sealing rings.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 and 2, the present embodiment discloses an axial flow pump including a housing assembly 1, a stator assembly 2, and a rotor assembly 3.

The housing assembly 1 is provided with a water inlet 111 and a water outlet 131. Specifically, the housing assembly 1 includes a first housing 11, an installation housing 12 and a second housing 13, the first housing 11 and the second housing 13 are respectively and hermetically connected to two ends of the installation housing 12, a first end of the first housing 11 is horn-shaped, a second end of the second housing 13 is horn-shaped, the water inlet 111 is disposed at the first end of the first housing 11, and the water outlet 131 is disposed at the second end of the second housing 13. That is, the diameters of the water inlet 111 and the water outlet 131 are smaller than the inner diameters of the first housing 11 and the second housing 13. The water inlet 111 and the water outlet 131 may be provided in the form of screw threads, or may be provided in the form of flanges.

The first housing 11 and the second housing 13 are both provided with a connecting portion 112, and the connecting portion 112 extends into the mounting housing 12. Sealing rings 4 are provided between the first housing 11 and the mounting housing 12 and between the second housing 13 and the mounting housing 12. An accommodating groove is formed in the inner opening of the end of the mounting shell 12, and the sealing ring 4 is located in the accommodating groove.

Stator module 2 sets up in casing subassembly 1, specifically installs in installation casing 12, is provided with the mounting groove on the inner wall of installation casing 12, and stator module 2 inlays in the mounting groove.

The rotor assembly 3 includes a cylindrical rotor body 31 and blades 32, the rotor body 31 is embedded in the stator assembly 2 in a floating manner, and the rotor body 31 can move within a certain range along the axial direction of the stator assembly 2. A plurality of blades 32 are annularly arranged on the inner wall of the rotor body 31, the blades 32 are spiral, and the spiral blades 32 can convey liquid by rotating. The width of the blade 32 gradually decreases from the end close to the rotor body 31 to the end far from the rotor body.

After being electrified, the rotor assembly 3 can rotate relative to the stator assembly 2 according to the distance of the motor, so that the blades 32 rotate at a high speed, and liquid is driven to be conveyed from the water inlet 111 to the water outlet 131.

Rotor body 31 inlays in stator module 2 with floating, and rotor body 31 can move in axial certain limit, and the inner wall of rotor body 31 is fitted with a plurality of blades 32 on a contraceptive ring, and circular telegram back rotor subassembly 3 can rotate for stator module 2 to make blade 32 order about liquid and carry to delivery port 131 from water inlet 111. The rotor assembly 3 of the axial flow pump is installed without a bearing, can protect the transmitted liquid from being polluted, and has a simple structure.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An axial flow pump, comprising:

a housing assembly (1) provided with a water inlet (111) and a water outlet (131);

a stator assembly (2) disposed within the housing assembly (1);

the rotor assembly (3) comprises a cylindrical rotor body (31) and blades (32), the rotor body (31) is embedded in the stator assembly (2) in a floating mode, the blades (32) are annularly arranged on the inner wall of the rotor body (31), and the rotor assembly (3) can rotate relative to the stator assembly (2) after being electrified, so that the blades (32) drive liquid to be conveyed from the water inlet (111) to the water outlet (131).

2. The axial flow pump according to claim 1, wherein the housing assembly (1) comprises a first housing (11), a mounting housing (12) and a second housing (13), the first housing (11) and the second housing (13) are respectively connected to two ends of the mounting housing (12) in a sealing manner, the stator assembly (2) is mounted in the mounting housing (12), the water inlet (111) is disposed at a first end of the first housing (11), and the water outlet (131) is disposed at a second end of the second housing (13).

3. Axial flow pump according to claim 2, characterised in that a connection part (112) is provided on each of the first housing (11) and the second housing (13), the connection part (112) protruding into the mounting housing (12).

4. Axial flow pump according to claim 2, characterised in that sealing rings (4) are provided between the first housing (11) and the mounting housing (12) and between the second housing (13) and the mounting housing (12).

5. Axial flow pump according to claim 1, characterized in that the blades (32) are helical.

6. Axial flow pump according to claim 5, characterized in that the width of the blade (32) is gradually decreasing from the end close to the rotor body (31) to the end remote from the rotor body (31).