CN207554353U - Self-balanced multiple-stage centrifugal pump is opened in stable type level - Google Patents
Self-balanced multiple-stage centrifugal pump is opened in stable type level Download PDFInfo
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- CN207554353U CN207554353U CN201721704465.0U CN201721704465U CN207554353U CN 207554353 U CN207554353 U CN 207554353U CN 201721704465 U CN201721704465 U CN 201721704465U CN 207554353 U CN207554353 U CN 207554353U
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- impeller
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- sleeve
- centrifugal pump
- stage centrifugal
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Abstract
The utility model is related to self-balanced multiple-stage centrifugal pump technical fields, self-balanced multiple-stage centrifugal pump is opened in especially a kind of stable type level, including housing unit and rotor assembly, the left end of shaft has positioning shaft shoulder, and the right end of shaft is fixed with end locating ring by screw；Positive impeller sets and reverse impeller group include several impellers being spacedly distributed in shaft, intermediate sleeve is fixed with by screw between two neighboring impeller in shaft, the both ends of intermediate sleeve inner ring wall are threaded with abutment sleeve, abutment sleeve is set in shaft, one end end of the abutment sleeve far from intermediate sleeve is against on impeller, intermediate sleeve, abutment sleeve and impeller can be rotated with shaft together, the abutment sleeve caused by relatively rotating between abutment sleeve and impeller is effectively prevented to be worn, avoid impeller that axial throw occurs with respect to shaft, improve the stability of centrifugation pump work.
Description
Technical field
The utility model is related to self-balanced multiple-stage centrifugal pump technical field, self-balancing is opened in especially a kind of stable type level
Centrifugal multistage pump multiple centrifugal pump.
Background technology
Opened in level self-balanced multiple-stage centrifugal pump be usually used in mine drainage, pipeline, water injection, carbon dioxide injection,
Flow charging, reverse osmosis feedwater, offshore platform water filling, the feedwater of coal chemical industry scrubbing tower, middle pressure are adopted with sub-high pressure boiler feedwater, waterpower
The acid-base mediums such as coal, seawater, sewage, oil, chemical-process convey and brine transportation, and self-balanced multiple-stage centrifugal pump includes at present
Multiple impellers being fixed in shaft, impeller generally use are arranged symmetrically, and axis is to power autobalance, without complicated balance
Disk, balancing drum isoequilibrium mechanism, then generally use sleeve carries out axially position between the impeller in shaft, since sleeve is straight
Female connector is located in shaft, therefore, when shaft rotates, is easily relatively rotated between impeller and sleeve, can be made set for a long time
Contact surface between cylinder and impeller is worn, and then the axial length that sleeve occurs shortens, so as to make sleeve can not be to impeller
Be accurately positioned, impeller caused axial float occur, can also send out larger noise, influence centrifuge pump work stability and
Service life.
Utility model content
The technical problems to be solved in the utility model is：In order to solve its impeller of centrifugal pump of the prior art and sleeve it
Between easily relatively rotate, can wear the contact surface between sleeve and impeller for a long time, so occur sleeve axis
It shortens to length, so as to make sleeve that impeller can not be accurately positioned, impeller is caused axial float occur, can also send out larger
Noise, influence centrifuge pump work stability and service life the problem of, now provide in a kind of stable type level and open self-balancing
Centrifugal multistage pump multiple centrifugal pump.
Technical solution is used by the utility model solves its technical problem：It is more that self-balancing is opened in a kind of stable type level
Grade centrifugal pump, including housing unit and rotor assembly, the housing unit includes lower housing and covers the upper casing being located on lower housing
Body, the rotor assembly include shaft, and the left end of the shaft has positioning shaft shoulder, and the right end of the shaft is fixed by screw
There is an end locating ring, the position in the shaft between positioning shaft shoulder and end locating ring is symmetrically installed with positive impeller sets
And reverse impeller group, the forward direction impeller sets and reverse impeller group are respectively positioned between upper shell and lower housing；
The forward direction impeller sets are located at the left end of shaft, and the reverse impeller group is located at the right end of shaft, the forward direction leaf
Wheel group and reverse impeller group include several impellers being spacedly distributed in shaft, and impeller is circumferentially fixed in shaft,
Intermediate sleeve is fixed with by screw between two neighboring impeller in the shaft, the both ends of the intermediate sleeve inner ring wall are equal
Abutment sleeve is threaded with, the abutment sleeve is set in shaft, one end end of the abutment sleeve far from intermediate sleeve
It is against on impeller, the impeller of the leftmost side is against in positioning shaft shoulder in the forward direction impeller sets, the rightmost side in the reverse impeller group
Impeller be against on the locating ring of end.
Axially position is carried out by intermediate sleeve and two abutment sleeves between two neighboring impeller in this programme, utilizes screw
Intermediate sleeve is fixed in shaft, then rotating the abutment sleeve at intermediate sleeve both ends makes it respectively tight against in two adjacent impellers
On, it realizes and fixes the interval between impeller, since intermediate sleeve is fixed by screws in shaft, in centrifugal pump
During work, intermediate sleeve, abutment sleeve and impeller can be rotated with shaft together, effectively prevent abutment sleeve and impeller it
Between relatively rotate caused by abutment sleeve be worn, avoid impeller with respect to shaft occur axial direction throw, improve centrifugation
The stability of pump work, wherein, it is made to be drawn close or separate with respect to intermediate sleeve by rotating two abutment sleeves, so as to fulfill can root
It makes and being adaptively adjusted according to the practical spacing between two neighboring impeller.
Abutment sleeve is loosened with respect to intermediate sleeve in order to prevent, and further, the abutment sleeve is far from its place
Between one end end for covering be fixed with rubber pad, rubber pad is made to be crushed on it between impeller by screwing abutment sleeve, utilizes rubber
The elasticity of rubber cushion can improve the frictional force of screw thread between abutment sleeve and intermediate sleeve, in effectively preventing abutment sleeve relatively
Between cover and loosen.
Further, four impellers are respectively provided in the positive impeller sets and reverse impeller group.
Specifically, the impeller is circumferentially fixed in shaft by key.
The beneficial effects of the utility model are：Opened in the stable type level of the utility model self-balanced multiple-stage centrifugal pump from
When heart pump works, intermediate sleeve, abutment sleeve and impeller can be rotated with shaft together, effectively prevent abutment sleeve and leaf
Abutment sleeve caused by relatively rotating between wheel is worn, and impeller is avoided to occur axially to throw with respect to shaft, is improved
The stability of pump work is centrifuged, wherein, it is made to be drawn close or separate with respect to intermediate sleeve by rotating two abutment sleeves, so as to reality
It is now made and is adaptively adjusted according to the practical spacing between two neighboring impeller.
Description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the schematic diagram that self-balanced multiple-stage centrifugal pump is opened in the utility model stable type level；
Fig. 2 is the cooperation signal that shaft and impeller in self-balanced multiple-stage centrifugal pump are opened in the utility model stable type level
Figure；
Fig. 3 is the close-up schematic view of A in Fig. 2；
Fig. 4 is the close-up schematic view of B in Fig. 2；
Fig. 5 is the close-up schematic view of C in Fig. 2；
Fig. 6 is the close-up schematic view of D in Fig. 2.
In figure：1st, lower housing, 2, upper shell, 3, shaft, 3-1, positioning shaft shoulder, 4, screw, 5, end locating ring, 6, rubber
Pad, 7, positive impeller sets, 8, reverse impeller group, 9, impeller, 10, intermediate sleeve, 11, abutment sleeve, 12, key.
Specific embodiment
The utility model is described in further detail presently in connection with attached drawing.These attached drawings are simplified schematic diagram,
Only illustrate the basic structure of the utility model in a schematic way, therefore it only shows the composition related with the utility model, direction
It can be only used for helping the description to the feature in attached drawing with reference to (for example, upper and lower, left and right, etc.).Therefore, it is not limiting
Using detailed description below in property meaning processed, and only asked by appended claims and its equivalent form to limit
The range of the theme of protection.
Embodiment 1
As shown in figures 1 to 6, self-balanced multiple-stage centrifugal pump is opened in a kind of stable type level, including housing unit and rotor set
Part, the housing unit include lower housing 1 and cover the upper shell 2 being located on lower housing 1, and the rotor assembly includes shaft 3, institute
Stating the left end of shaft 3 has a positioning shaft shoulder 3-1, and the right end of the shaft 3 is fixed with end locating ring 5 by screw 4, described turn
Position on axis 3 between positioning shaft shoulder 3-1 and end locating ring 5 is symmetrically installed with positive impeller sets 7 and reverse impeller group
8, the forward direction impeller sets 7 and reverse impeller group 8 are respectively positioned between upper shell 2 and lower housing 1；
The forward direction impeller sets 7 are located at the left end of shaft 3, and the reverse impeller group 8 is located at the right end of shaft 3, it is described just
Include several impellers 9 being spacedly distributed in shaft 3, and impeller 9 is circumferentially fixed to impeller sets 7 and reverse impeller group 8
In shaft 3, intermediate sleeve 10, the centre are fixed with by screw 4 between two neighboring impeller 9 in the shaft 3
The both ends for covering 10 inner ring walls are threaded with abutment sleeve 11, and the abutment sleeve 11 is set in shaft 3, the positioning sleeve
11 one end ends far from intermediate sleeve 10 of cylinder are against on impeller 9, and the impeller 9 of the leftmost side is against positioning in the forward direction impeller sets 7
On shaft shoulder 3-1, the impeller 9 of the rightmost side is against on end locating ring 5 in the reverse impeller group 8.
One end end of the abutment sleeve 11 far from intermediate sleeve 10 where it is fixed with rubber pad 6, by screwing positioning
Sleeve 11 makes rubber pad 6 be crushed on it between impeller 9, using the elasticity of rubber pad 6, can improve abutment sleeve 11 and intermediate sleeve
The frictional force of screw thread between 10 effectively prevents abutment sleeve 11 and is loosened with respect to intermediate sleeve 10.
Four impellers 9 are respectively provided in the forward direction impeller sets 7 and reverse impeller group 8.
The impeller 9 is circumferentially fixed in shaft 3 by key 12.
Difference with the prior art is in the utility model in shaft 3 between two neighboring impeller 9 through intermediate sleeve 10
And two abutment sleeves 11 carry out axially position, the impeller 9 that the leftmost side is located in shaft 3 is against on positioning shaft shoulder 3-1, shaft 3
The upper impeller 9 positioned at the rightmost side is against on end locating ring 5, intermediate sleeve 10 is fixed in shaft 3 using screw 4, Ran Houzhuan
The abutment sleeve 11 at dynamic 10 both ends of intermediate sleeve makes it be against respectively on two adjacent impellers 9, realizes the interval between impeller 9
It is fixed, since intermediate sleeve 10 is fixed in shaft 3 by screw 4, when centrifuging pump work, intermediate sleeve 10, positioning
Sleeve 11 and impeller 9 can be rotated with shaft 3 together, effectively prevented and occurred relatively between abutment sleeve 11 and impeller 9
Abutment sleeve 11 caused by rotation is worn, and impeller 9 is avoided to occur axially to throw with respect to shaft 3, improves centrifugation pump work
Stability, wherein, it is made to be drawn close or separate with respect to intermediate sleeve 10 by rotating two abutment sleeves 11, so as to fulfill can basis
Practical spacing between two neighboring impeller 9, which is made, to be adaptively adjusted.
The above-mentioned desirable embodiment according to the utility model is enlightenment, passes through above-mentioned description, relevant staff
Various changes and amendments can be carried out in the range of without departing from this item utility model technological thought completely.This item is practical
Novel technical scope is not limited to the content on specification, it is necessary to determine that its is technical according to right
Range.
Claims (4)
1. open self-balanced multiple-stage centrifugal pump in a kind of stable type level, it is characterised in that：Including housing unit and rotor assembly, institute
It states housing unit to include lower housing (1) and cover the upper shell (2) being located on lower housing (1), the rotor assembly includes shaft
(3), the left end of the shaft (3) has positioning shaft shoulder (3-1), and the right end of the shaft (3) is fixed with end by screw (4)
Locating ring (5), the position on the shaft (3) between positioning shaft shoulder (3-1) and end locating ring (5) are symmetrically installed with just
To impeller sets (7) and reverse impeller group (8), it is described forward direction impeller sets (7) and reverse impeller group (8) be respectively positioned on upper shell (2) with
Between lower housing (1)；
The forward direction impeller sets (7) are positioned at the left end of shaft (3), and the reverse impeller group (8) is positioned at the right end of shaft (3), institute
It states positive impeller sets (7) and reverse impeller group (8) and includes several impellers (9) being spacedly distributed in shaft (3), and impeller
(9) it is circumferentially fixed in shaft (3), it is solid by screw (4) between two neighboring impeller (9) on the shaft (3)
Surely there is intermediate sleeve (10), the both ends of intermediate sleeve (10) the inner ring wall are threaded with abutment sleeve (11), the positioning sleeve
Cylinder (11) is set in shaft (3), and one end end of the abutment sleeve (11) far from intermediate sleeve (10) is against on impeller (9),
The impeller (9) of the leftmost side is against in positioning shaft shoulder (3-1) in the forward direction impeller sets (7), most right in the reverse impeller group (8)
The impeller (9) of side is against on end locating ring (5).
2. open self-balanced multiple-stage centrifugal pump in stable type level according to claim 1, it is characterised in that：The positioning sleeve
One end end of the cylinder (11) far from intermediate sleeve (10) where it is fixed with rubber pad (6).
3. open self-balanced multiple-stage centrifugal pump in stable type level according to claim 1, it is characterised in that：The forward direction leaf
Four impellers (9) are respectively provided in wheel group (7) and reverse impeller group (8).
4. open self-balanced multiple-stage centrifugal pump in stable type level according to claim 1, it is characterised in that：The impeller
(9) it is circumferentially fixed in shaft (3) by key (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721704465.0U CN207554353U (en) | 2017-12-08 | 2017-12-08 | Self-balanced multiple-stage centrifugal pump is opened in stable type level |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721704465.0U CN207554353U (en) | 2017-12-08 | 2017-12-08 | Self-balanced multiple-stage centrifugal pump is opened in stable type level |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207554353U true CN207554353U (en) | 2018-06-29 |
Family
ID=62665383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721704465.0U Active CN207554353U (en) | 2017-12-08 | 2017-12-08 | Self-balanced multiple-stage centrifugal pump is opened in stable type level |
Country Status (1)
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|---|---|
| CN (1) | CN207554353U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106687661A (en) * | 2014-09-12 | 2017-05-17 | 卡特彼勒公司 | Remanufactured center housing and method |
| CN109469631A (en) * | 2018-10-24 | 2019-03-15 | 浙江朗庆智能科技有限公司 | A kind of centrifugal pump housing |
| CN114483593A (en) * | 2022-01-26 | 2022-05-13 | 湖南凯利特泵业有限公司 | Self-balancing multistage split pump equipment |
-
2017
- 2017-12-08 CN CN201721704465.0U patent/CN207554353U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106687661A (en) * | 2014-09-12 | 2017-05-17 | 卡特彼勒公司 | Remanufactured center housing and method |
| CN109469631A (en) * | 2018-10-24 | 2019-03-15 | 浙江朗庆智能科技有限公司 | A kind of centrifugal pump housing |
| CN109469631B (en) * | 2018-10-24 | 2020-07-07 | 浙江朗庆智能科技有限公司 | Centrifugal pump body |
| CN114483593A (en) * | 2022-01-26 | 2022-05-13 | 湖南凯利特泵业有限公司 | Self-balancing multistage split pump equipment |
| CN114483593B (en) * | 2022-01-26 | 2023-11-24 | 湖南凯利特泵业有限公司 | Self-balancing multistage split pump equipment |
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