CN106593941B - A kind of rotor pump impeller installation and positioning structure - Google Patents
A kind of rotor pump impeller installation and positioning structure Download PDFInfo
- Publication number
- CN106593941B CN106593941B CN201611071987.1A CN201611071987A CN106593941B CN 106593941 B CN106593941 B CN 106593941B CN 201611071987 A CN201611071987 A CN 201611071987A CN 106593941 B CN106593941 B CN 106593941B
- Authority
- CN
- China
- Prior art keywords
- pump impeller
- axle sleeve
- rotor
- cone face
- sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/20—Mounting rotors on shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/605—Mounting; Assembling; Disassembling specially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of rotor pump impeller installation and positioning structures, including pump impeller, axle sleeve and locking nut；The pump impeller, axle sleeve are adjacent to be mounted on the rotor composition pump impeller, sleeve combination；It is characterized by: the pump impeller has convex cone face, which is inserted into axle sleeve adjacent thereto；The sleeve end has convex cone face or concave cone face；The locking nut is mounted on the rotor, and pump impeller, axle sleeve are held out against by specified screw-down torque.The present invention improves location fit stability and reliability between pump impeller, axle sleeve and rotor, guarantee that each component can be reassembled more accurately after dynamic balancing and maintenance replacement dismounting without changing dynamic equilibrium state, to reduce its unbalance response, reduce unit vibration noise.
Description
Technical field
The present invention relates to water supply pump assembly peculiar to vessel, specifically a kind of rotor pump impeller installation and positioning structure.
Background technique
Under water supply pump assembly actual working state peculiar to vessel, water supply pump assembly needs often maintenance, renewal part, therefore needs
Pump impeller is often dismounted, but dismounting pump impeller will lead to the position reinstalled every time and state changes, to change original
The dynamic equilibrium state of beginning.The particularity of water supply pump assembly working environment results in water pump and readjustment can not move after each dismounting
Equilibrium state, as shown in Figure 1, conventional feed pump impeller pump wheel construction generally uses common axially position mode: pump impeller, axle sleeve
There is certain fit clearance between rotor, the original dynamic equilibrium state of rotor pump impeller after dismounting pump impeller every time is caused to change in this way
Become, biggish vibration noise can be generated during high-speed rotation.
Summary of the invention
The purpose of the present invention is to solve above-mentioned technical problems, provide a kind of rotor pump impeller installation and positioning structure, this turn
Sub- pump impeller installation and positioning structure improves location fit stability and reliability between pump impeller, axle sleeve and rotor, guarantees each portion
Part can be reassembled more accurately after dynamic balancing and maintenance replacement dismounting without changing dynamic equilibrium state, be rung to reduce its imbalance
It answers, reduces unit vibration noise.
It realizes the technical scheme is that a kind of rotor pump impeller installation and positioning structure, including pump impeller, axle sleeve and locking
Nut；The pump impeller, axle sleeve are adjacent to be mounted on the rotor composition pump impeller, sleeve combination；It is characterized by: the pump impeller has convex cone
Face, the convex cone face are inserted into axle sleeve adjacent thereto；The sleeve end has convex cone face or concave cone face；The locking nut installation
On rotor, pump impeller, axle sleeve are held out against by specified screw-down torque.
The pump impeller, axle sleeve convex cone face be segmentation the conical surface.
The pump impeller, sleeve combination are one or more sets.
Box nut is installed on the locking nut.
Locked spacer is installed between the locking nut and box nut.
Particularly, the pump impeller, sleeve combination are three sets, respectively sequentially install pump impeller a, axle sleeve a, pump impeller on rotor
B, axle sleeve b, axle sleeve c, pump impeller c；Axle sleeve a is inserted into the convex cone face of the pump impeller a；Axle sleeve b is inserted into the convex cone face of the pump impeller b；Institute
Axle sleeve c is inserted into the convex cone face for stating axle sleeve b and pump impeller c.
The both ends the axle sleeve c are concave cone face.
The rotor outer end, which has, cooperates six square toes tightened with locking nut.
The beneficial effects of the present invention are:
1, the present invention improves location fit stability and reliability between pump impeller, axle sleeve and rotor, guarantees each component
It can more accurately reassemble after dynamic balancing and maintenance replacement dismounting without changing dynamic equilibrium state, be rung to reduce its imbalance
It answers, reduces unit vibration noise.
2, the present invention is suitable for most of water supply pump assembly peculiar to vessel and like device.Do not changing original structure number of components
Under the premise of improvement part component structural, will not influence the service condition of matched other component.
Detailed description of the invention
Fig. 1 is conventional feed pump impeller pump wheel construction schematic diagram；
Fig. 2 is structural schematic diagram of the embodiment of the present invention；
Fig. 3 is the A enlarged drawing of Fig. 2；
Fig. 4 is segmentation cone structure schematic diagram；
Fig. 5 is locking nut structure stereoscopic schematic diagram；
Fig. 6 is box nut structural schematic diagram；
Fig. 7 is mounting and adjusting schematic diagram.
Figure label: 1-pump impeller a, 2-axle sleeve a, 3-pump impeller b, 4-axle sleeve b, 5-axle sleeve c, 6-pump impeller c, 7-
Rotor, 8-convex cone faces, 9-locked spacers, 10-locking nuts, 11-box nuts, 12-spanners, 13-torque spanneres, 14-
Six square toes.
Specific embodiment
As shown in Figures 2 to 6, a kind of rotor pump impeller installation and positioning structure, including pump impeller, axle sleeve and locking nut；It is described
Pump impeller, axle sleeve are adjacent to be mounted on the rotor composition pump impeller, sleeve combination；The pump impeller has convex cone face 8, the convex cone face 8 insertion with
In its adjacent axle sleeve；The sleeve end has convex cone face 8 or concave cone face；The locking nut 10 is mounted on the rotor, and will be pumped
Wheel, axle sleeve are held out against.For certain feed pump peculiar to vessel, pump impeller a1 and axle sleeve a2 contact plane are designed to taper-face contact first, wherein
The one end pump impeller a1 is designed to convex cone face 8, and in order to prevent axial force cross ambassador's conical surface not yet and axis be adjacent to before occur
Plastic deformation, all convex cone faces 8 are all specifically designed to the segmentation conical surface, while also ensuring that such location structure used weighs
Renaturation.Followed by pump impeller b(3 and axle sleeve b4 contact plane and pump impeller c6 and axle sleeve c5 contact plane are designed to taper-face contact.
The both ends axle sleeve c5 there is into inner conical surface, the axle sleeve b4 and pump impeller c6 contacted is then designed to convex cone face 8, in this way when sufficiently large
Responsive to axial force when on the convex cone face 8 that the both ends axle sleeve c5 cooperate, convex cone face 8 and rotor 7 are held tightly, while realizing axle sleeve c5's
Radial positioning.There are a locking nut 10 and box nut 11 in the outer end of rotor 7, locking nut 10 and pump impeller c6 and locking nut
Locked spacer 9 is equipped between 10 and box nut 11.
As shown in fig. 7, the screwing force of locking nut 10 provides the axial force of each conical surface deformation, locking nut 10 is being tightened
When, the screw-down torque of torque spanner 13 is first adjusted, the sleeve of torque spanner 13 is covered into six square toes, 14 knot in rotor outer end
It on structure, keeps torque spanner 13 motionless, is tightened locking nut 10 using spanner 12, until torque spanner 13 reaches the power of setting
Square, torque at this moment are exactly the design screw-down torque of locking nut 10, so the torque when pump impeller has dismantled installation again every time
Size is all consistent, can guarantee that the axial force acted on convex cone face 8 when installing pump impeller every time is the same, the deformation of the conical surface
It is also the same, each in this way installation condition it is ensured that consistent.
The installation and positioning structure is suitable for most of water supply pump assembly peculiar to vessel and like device.Different rotor pump impeller and
The quantity and engagement sequence of axle sleeve are different, but as long as arranging a conical surface location structure in its corresponding contact position and outside it
Locking device is arranged in end.
Claims (7)
1. a kind of rotor pump impeller installation and positioning structure, including pump impeller, axle sleeve and locking nut；The adjacent installation of the pump impeller, axle sleeve
Pump impeller, sleeve combination are formed on rotor；It is characterized by: the pump impeller has convex cone face, which is inserted into adjacent thereto
In axle sleeve；The sleeve end has convex cone face or concave cone face；The pump impeller, axle sleeve convex cone face be segmentation the conical surface；The locking
Nut is mounted on the rotor, and pump impeller, axle sleeve are held out against by specified screw-down torque.
2. rotor pump impeller installation and positioning structure according to claim 1, it is characterised in that: the pump impeller, sleeve combination one
Set or more sets.
3. rotor pump impeller installation and positioning structure according to claim 1, it is characterised in that: be equipped with lid on the locking nut
Nut.
4. rotor pump impeller installation and positioning structure according to claim 3, it is characterised in that: the locking nut and box nut it
Between locked spacer is installed.
5. rotor pump impeller installation and positioning structure according to claim 1, it is characterised in that: the pump impeller, sleeve combination three
Set respectively sequentially installs pump impeller a, axle sleeve a, pump impeller b, axle sleeve b, axle sleeve c, pump impeller c on rotor；The convex cone of the pump impeller a
Axle sleeve a is inserted into face；Axle sleeve b is inserted into the convex cone face of the pump impeller b；Axle sleeve c is inserted into the convex cone face of the axle sleeve b and pump impeller c.
6. rotor pump impeller installation and positioning structure according to claim 5, it is characterised in that: the both ends the axle sleeve c are concave cone
Face.
7. according to claim 1 or the 5 rotor pump impeller installation and positioning structures, it is characterised in that: the rotor outer end have and
Locking nut cooperates six square toes tightened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611071987.1A CN106593941B (en) | 2016-11-29 | 2016-11-29 | A kind of rotor pump impeller installation and positioning structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611071987.1A CN106593941B (en) | 2016-11-29 | 2016-11-29 | A kind of rotor pump impeller installation and positioning structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106593941A CN106593941A (en) | 2017-04-26 |
| CN106593941B true CN106593941B (en) | 2019-03-29 |
Family
ID=58593548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611071987.1A Active CN106593941B (en) | 2016-11-29 | 2016-11-29 | A kind of rotor pump impeller installation and positioning structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106593941B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404050B (en) * | 2018-12-18 | 2024-05-28 | 南京磁谷科技股份有限公司 | Structure for reducing stress concentration of central hole of impeller part |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251228A (en) * | 2013-06-27 | 2014-12-31 | 上海连成（集团）有限公司 | Impeller positioning structure |
| CN105927585A (en) * | 2016-06-02 | 2016-09-07 | 东方电气集团东方汽轮机有限公司 | Axial positioning structure for compressor blade in impeller groove |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2621201C3 (en) * | 1976-05-13 | 1979-09-27 | Maschinenfabrik Augsburg-Nuernberg Ag, 8900 Augsburg | Impeller for a turbomachine |
| ITMI20071100A1 (en) * | 2007-05-30 | 2008-11-30 | Nuovo Pignone Spa | ANCHORAGE SYSTEM FOR THE IMPELLERS OF A ROTARY FLUID MACHINE |
| CN201137581Y (en) * | 2007-12-24 | 2008-10-22 | 上海东方泵业(集团)有限公司 | Packaged sealed protection axle sleeve mounting structure for chemical industry pump |
| ITCO20110064A1 (en) * | 2011-12-14 | 2013-06-15 | Nuovo Pignone Spa | ROTARY MACHINE INCLUDING A ROTOR WITH A COMPOSITE IMPELLER AND A METAL SHAFT |
| CN205663649U (en) * | 2016-05-29 | 2016-10-26 | 襄阳新金开泵业有限公司 | Locking device of chemical pump impeller |
-
2016
- 2016-11-29 CN CN201611071987.1A patent/CN106593941B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251228A (en) * | 2013-06-27 | 2014-12-31 | 上海连成（集团）有限公司 | Impeller positioning structure |
| CN105927585A (en) * | 2016-06-02 | 2016-09-07 | 东方电气集团东方汽轮机有限公司 | Axial positioning structure for compressor blade in impeller groove |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106593941A (en) | 2017-04-26 |
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