CN208858572U - A kind of integral type sectional multistage pump configuration - Google Patents
A kind of integral type sectional multistage pump configuration Download PDFInfo
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- CN208858572U CN208858572U CN201821172633.0U CN201821172633U CN208858572U CN 208858572 U CN208858572 U CN 208858572U CN 201821172633 U CN201821172633 U CN 201821172633U CN 208858572 U CN208858572 U CN 208858572U
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- guide vane
- middle portion
- segment body
- face
- axis
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Abstract
The utility model discloses a kind of integral type sectional multistage pump configurations, including segment body, impeller, sealing ring and axis；Segment body includes middle portion and guide vane portion, and guide vane portion is located in middle portion and the side in guide vane portion and the inner wall of middle portion are linked together, and axis is arranged across guide vane portion, and impeller is installed on axis and is located in guide vane portion；The both ends of middle portion are respectively formed compatible ring-shaped step structure, and sealing ring is for the sealing between the middle portion of adjacent segments segment body.Two Element Designs in middle section and guide vane at an entirety, are optimized overall structure by the utility model, are improved positioning accuracy, are reduced the number of parts of pump group, while improving part positioning accuracy, and the production cost of product is saved, and save the time.
Description
Technical field
The utility model relates to centrifugal multistage pump multiple centrifugal pump more particularly to a kind of integral type sectional multistage pump configurations.
Background technique
Referring to Fig. 1, when centrifugal multistage pump multiple centrifugal pump assembles, impeller 2 is installed on axis 6 and is located in guide vane 3, in the outer of guide vane 3
Side is set with middle section 1, forms a segment.Cooperation positioning is carried out by the structure in middle section 1 itself between segment and segment, segment
Left end face A is a positioning end face, and the axial displacement in two middle sections 1 is positioned by end face A, while positioning middle section 1 and guide vane 3
Left end face displacement；Positioning surface of the right end face B of segment between guide vane 3 and middle section 1.In order to limit guide vane 3 in middle section 1
Interior is circumferentially displaced, is provided with positioning pin 4, and 4 one end of positioning pin is fixed on middle section 1, and one end is located on guide vane 3.In middle section 1
The outer ring of circle and guide vane 3 is clearance fit.Sealing ring 5 is assemblied on middle section 1.
Existing structure has the disadvantage in that
1, axially position is not accurate.Middle section and guide vane are by end face A and end face B formation axially position, due to processing, measuring
Error, the part that will lead to end face A and end face B forms gap, and guide vane cannot precisely realize axially position, transport in this way in water pump
When row, certain vibration and noise can be generated, service life is influenced.
2, radial positioning is not accurate.The radial direction of middle section and guide vane is clearance fit, because in mismachining tolerance and use
The reasons such as abrasion, may cause the radial-play of guide vane, make to generate friction when pump operation, influence service life, increase energy damage
Consumption.
3, part is more.Existing structure part is more, and positioning pin is small in size when maintenance, it is easy to ignore assembly or be lost in
In pump chamber, certain loss or interruption of service may cause.
4, it wastes time.Part is more, assembly maintenance when, just have more processes, to take more time into
Row dismounting checks.
Utility model content
The utility model is in view of the above-mentioned problems, provide a kind of integral type sectional multistage pump configuration.
The purpose of this utility model can be realized by following technical proposals: a kind of integral type sectional type multi-stage pump knot
Structure, including segment body, impeller, sealing ring and axis；The segment body includes middle portion and guide vane portion, and the guide vane portion is located at middle section
In portion and the inner wall of the side in guide vane portion and middle portion is linked together, and the axis is arranged across guide vane portion, and the impeller is installed on
On axis and it is located in guide vane portion；The both ends of the middle portion are respectively formed compatible ring-shaped step structure, the ring-shaped step knot
For the installation between adjacent segments segment body, ring-shaped step structure includes first step end face located on the outer side, is located at inner circumferential structure
The second step end face of side and the side wall surface for connecting first step end face and second step end face, the first step end face
For positioning the axial displacement of the middle portion of adjacent segments segment body, sealing ring is installed in the second step end face, and the sealing ring is used
Sealing between the middle portion of adjacent segments segment body, the second step end face are used to position between the middle portion of adjacent segments segment body
Sealing ring axial displacement, the side wall surface be used for position adjacent segments segment body middle portion radial displacement.
It further, further include impeller interstage sleeve, the impeller interstage sleeve is installed on axis and is set to the leaf of adjacent segments segment body
Between wheel.
Compared with prior art, the utility model has the beneficial effects that
1, accurate positioning.Axially position and radial positioning only between segment body and segment body, by the annular of itself
Step structure can be achieved with location fit, be accurately positioned, and error is small；The operation that will not influence water pump uses.
2, part is few, simply.By two Element Designs in middle section and guide vane at an entirety, number of parts is greatly reduced,
Processing and assembly process are reduced, production efficiency is improved.
3, save the cost.Processing capacity and mold opening cost are reduced, the development cost of product is reduced.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the prior art.
Fig. 2 is the structural schematic diagram of the utility model.
Component mark is as follows in Fig. 1:
1 middle section, 2 impellers, 3 guide vanes, 4 positioning pins, 5 sealing rings, 6 axis, the end face A, the end face B.
Component mark is as follows in Fig. 2:
1 segment body, 101 middle portions, 102 guide vane portions, 2 impellers, 3 sealing rings, 4 axis, 5 impeller interstage sleeves, A first step end
Face, B second step end face.
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing, becomes apparent from those skilled in the art
How ground understanding practices the utility model.Although describing the utility model in conjunction with its preferred embodiment, these
Embodiment only illustrates, rather than limits the scope of the utility model.
Referring to fig. 2, a kind of integral type sectional multistage pump configuration, including segment body 1, impeller 2, sealing ring 3 and axis 4；Institute
Stating segment body 1 includes middle portion 101 and guide vane portion 102, and the guide vane portion 102 is located in middle portion 101 and the week in guide vane portion 102
Side and the inner wall of middle portion 101 are linked together, and the axis 4 is arranged across guide vane portion 102, and the impeller 2 is installed on axis 4 and position
In in guide vane portion 102；The both ends of the middle portion 101 are respectively formed compatible ring-shaped step structure, the ring-shaped step structure
For the installation between adjacent segments segment body 1, ring-shaped step structure includes first step end face A located on the outer side, is located at inner circumferential
The second step end face B of side and the side wall surface for connecting first step end face A and second step end face B, the first step end
Face A is used to position the axial displacement of the middle portion 101 of adjacent segments segment body 1, and the second step end face B installs sealing ring 3, described
Sealing ring 3 is for the sealing between the middle portion 101 of adjacent segments segment body 1, and the second step end face B is for positioning adjacent segment
The axial displacement of sealing ring 3 between the middle portion 101 of body 1, the side wall surface are used to position the middle portion of adjacent segments segment body 1
101 radial displacement.
Further include impeller interstage sleeve 5, the impeller interstage sleeve 5 be installed on axis 4 and be set to adjacent segments segment body 1 impeller 2 it
Between.
Two Element Designs in middle section and guide vane at an entirety, are optimized overall structure by the utility model, improve positioning accurate
Degree, reduces the number of parts of pump group, while improving part positioning accuracy, saves the production cost of product, saves the time.
It should be pointed out that can also have a variety of transformation and the implementation of remodeling for the utility model through absolutely proving
Scheme, it is not limited to the specific embodiment of above embodiment.Above-described embodiment as just the utility model explanation, and
It is not limitations of the present invention.In short, the protection scope of the utility model should include those for ordinary skill
It obviously converts or substitutes and retrofit for personnel, and be determined by the appended claims.
Claims (2)
1. a kind of integral type sectional multistage pump configuration, which is characterized in that including segment body, impeller, sealing ring and axis；The section
Segment body includes middle portion and guide vane portion, and the guide vane portion is located in middle portion and the side in guide vane portion and the inner wall of middle portion are linked as
One, the axis are arranged across guide vane portion, and the impeller is installed on axis and is located in guide vane portion；The both ends of the middle portion are equal
Compatible ring-shaped step structure is formed, the ring-shaped step structure is for the installation between adjacent segments segment body, ring-shaped step knot
Structure includes first step end face, the second step end face positioned at inner circumferential side and connection first step end face located on the outer side
With the side wall surface of second step end face, the first step end face is used to position the axial displacement of the middle portion of adjacent segments segment body,
Sealing ring is installed in the second step end face, and the sealing ring is for the sealing between the middle portion of adjacent segments segment body, and described the
Two step end faces are used to position the axial displacement of the sealing ring between the middle portion of adjacent segments segment body, and the side wall surface is for positioning
The radial displacement of the middle portion of adjacent segments segment body.
2. integral type sectional multistage pump configuration according to claim 1, which is characterized in that further include impeller interstage sleeve, institute
Impeller interstage sleeve is stated to be installed on axis and be set between the impeller of adjacent segments segment body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821172633.0U CN208858572U (en) | 2018-07-24 | 2018-07-24 | A kind of integral type sectional multistage pump configuration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821172633.0U CN208858572U (en) | 2018-07-24 | 2018-07-24 | A kind of integral type sectional multistage pump configuration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208858572U true CN208858572U (en) | 2019-05-14 |
Family
ID=66413075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821172633.0U Active CN208858572U (en) | 2018-07-24 | 2018-07-24 | A kind of integral type sectional multistage pump configuration |
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| CN (1) | CN208858572U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901511A (en) * | 2021-01-29 | 2021-06-04 | 绍兴市雪花机电有限公司 | Variable frequency pump |
-
2018
- 2018-07-24 CN CN201821172633.0U patent/CN208858572U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901511A (en) * | 2021-01-29 | 2021-06-04 | 绍兴市雪花机电有限公司 | Variable frequency pump |
| CN112901511B (en) * | 2021-01-29 | 2022-08-09 | 绍兴市雪花机电有限公司 | Variable frequency pump |
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