CN104675751A - Centrifugal pump case - Google Patents
Centrifugal pump case Download PDFInfo
- Publication number
- CN104675751A CN104675751A CN201510031825.4A CN201510031825A CN104675751A CN 104675751 A CN104675751 A CN 104675751A CN 201510031825 A CN201510031825 A CN 201510031825A CN 104675751 A CN104675751 A CN 104675751A
- Authority
- CN
- China
- Prior art keywords
- centrifugal pump
- guide blade
- exit guide
- inlet cover
- pump casing
- 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.)
- Granted
Links
Classifications
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- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
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- 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
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid pumps
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- 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
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially 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 belongs to the technical field of fuel systems of aircrafts, and relates to an integral centrifugal pump case with an inlet cover and outlet guide blades. The centrifugal pump case comprises structures such as a pump inlet, the outlet guide blades, fixing lugs, a threading pipe, the inlet cover, a filter screen mounting groove, a connector seat, an oil drain plug mounting seat, limiting clamp grooves, sealing ring grooves, an impeller front cover plate, connecting ribs and flanges, is in an integral fuel pump case design and is applied to fuel delivery pump products of aircrafts. The centrifugal pump case has the advantages that the centrifugal pump case is high in integration level and efficiency and compact in structure, and flow channels are low in hydraulic loss; the centrifugal pump case is small and light; the quantities of components and connecting pieces can be greatly reduced, assembling testing links can be reduced, and the reliability of the products can be improved; the machining, tool and assembling adjusting costs can be reduced, and accordingly the cost can be saved.
Description
Technical field
The centrifugal pump casing bringing lid and exit guide blade into belongs to an aircraft fuel system technical field, relates to centrifugal pump casing integrated design and optimization.
Background technique
Integrated design technology is a kind of structure optimization technology, for combination and the optimal design of all kinds of mechanical structure.Carry out integratedly reducing volume, reduce weight, reduce connecting link and link quantity.
Summary of the invention
Object of the present invention: the centrifugal pump casing bringing lid and exit guide blade into providing a kind of integrated design, reduces pump spare part and link quantity, reduces dress test ring joint, improves reliability.
Technological scheme of the present invention: a kind of centrifugal pump casing bringing lid and exit guide blade into, at the fan-shaped runner of radial direction that pump intake uplink access lid, 2 ~ 6 connecting tendons and front shroud of impeller three are formed; Before the impeller cover plate adheres to the radial exit guide blade of n=(5 ~ 10) sheet, the runner rear formed between exit guide blade by radial steering shaft to.
At inlet cover non-pump intake side attachment connector holder, oil drain plug fitting seat and label seat.
Exit guide blade adheres to n fixing ear, beats blind hole at (n-1) individual fixing ear center and adhere to screw thread; Form penetration pipe in the fixing ear central punch of residue one, run through an exit guide blade, front shroud of impeller, a connecting tendon and inlet cover, penetrate into connector holder.
At inlet cover uplink acting flange, flange adheres to (1 ~ 4) individual spacing draw-in groove.
The porose pass-through entry lid in oil drain plug fitting seat center, this hole attachment screw thread.
Inlet cover and front shroud of impeller open seal groove.
Before the impeller between cover plate to inlet cover, the radial outside of connecting tendon, open loop shape filter screen mounting groove.
Beneficial effect of the present invention:
When not using of the present invention, formerly reach function of the present invention, the spare part such as inlet cover, cover plate, exit guide blade that general screw is connected with the feature such as connector holder, fixing ear, connecting tendon, seal groove, oil drain plug fitting seat, label seat, spacing draw-in groove, filter screen mounting groove and flange completes, structural volume is large, spare part is many, and mounting and adjusting link is many, runner poor continuity, reliability is low, and cost of production is high.
Level of integration of the present invention is high, and integral structure is compact, and part difficulty of processing and assembly parts are suitable, but amount of finish and connecting link few, following income can be brought:
1, runner hydraulic loss is little, efficiency is high;
2, reduce volume, reduce weight;
3, significantly reduce spare part and link quantity, reduce dress test ring joint, improve product reliability;
4, reduce processing, frock and debug and expend, cost-saving.
The present invention can be widely used in aircraft oil transfer pump series products.
Accompanying drawing illustrates:
Fig. 1 is centrifugal pump casing schematic diagram 1 of the present invention;
Fig. 2 is centrifugal pump casing schematic diagram 2 of the present invention;
Fig. 3 is centrifugal pump casing schematic diagram 3 of the present invention.
1-pump intake, 2-exit guide blade, 3-fixing ear, 4-penetration pipe, 5-label seat, 6-spacing draw-in groove, 7-connector holder, 8-oil drain plug fitting seat, 9-seal groove, 10-inlet cover, 11-front shroud of impeller, 12-connecting tendon, 13-filter screen mounting groove, 14-flange
Embodiment
When not using of the present invention, formerly reach function of the present invention, the spare part such as inlet cover, cover plate, exit guide blade that general screw is connected with the feature such as connector holder, fixing ear, connecting tendon, seal groove, oil drain plug fitting seat, label seat, spacing draw-in groove, filter screen mounting groove and flange completes, structural volume is large, spare part is many, and mounting and adjusting link is many, runner poor continuity, reliability is low, and cost of production is high.
A kind of centrifugal pump casing (see Fig. 1) bringing lid and exit guide blade into, at the fan-shaped runner of radial direction that pump intake uplink access lid, 2 ~ 6 connecting tendons and front shroud of impeller three are formed; Before the impeller cover plate adheres to the radial exit guide blade of n=(5 ~ 10) sheet, the runner rear formed between exit guide blade by radial steering shaft to.At inlet cover non-pump intake side attachment connector holder, oil drain plug fitting seat and label seat.Exit guide blade adheres to n fixing ear, beats blind hole at (n-1) individual fixing ear center and adhere to screw thread; Form penetration pipe in the fixing ear central punch of residue one, run through an exit guide blade, front shroud of impeller, a connecting tendon and inlet cover, penetrate into connector holder.At inlet cover uplink acting flange, flange adheres to (1 ~ 4) individual spacing draw-in groove.The porose pass-through entry lid in oil drain plug fitting seat center, this hole attachment screw thread.Inlet cover and front shroud of impeller open seal groove.Before the impeller between cover plate to inlet cover, the radial outside of connecting tendon, open loop shape filter screen mounting groove.
Integratedly on housing be provided with pump intake (1), exit guide blade (2), fixing ear (3), penetration pipe (4), label seat (5), spacing draw-in groove (6), connector holder (7), oil drain plug fitting seat (8), seal groove (9), inlet cover (10), front shroud of impeller (11), connecting tendon (12) and filter screen mounting groove (13), pump intake (1) is the round table-like runner of axially (ZC), described round table-like runner is connected radial fan-shaped runner, the fan-shaped runner of described radial direction is by inlet cover (10), front shroud of impeller (11) and connecting tendon (12) are formed, wherein connecting tendon (12) quantity is 2 ~ 6.
Be further that exit guide blade (2) is radial stator, quantity 5 ~ 10; The runner rear formed between exit guide blade by radial steering shaft to (ZC).Fixing ear (3) is arranged on exit guide blade on (2), and there is blind hole at fixing ear (3) center, and blind hole has internal thread.Label seat 5 and oil drain plug fitting seat (8) are arranged in inlet cover (10), and the porose pass-through entry lid (10) in oil drain plug fitting seat (8) center, the hole of this pass-through entry lid has internal thread.Seal groove (9) is arranged on inlet cover (10) and front shroud of impeller (11).Penetration pipe (4) runs through an exit guide blade (2), front shroud of impeller (11), a connecting tendon (12) and inlet cover (10), and penetrates into the inner chamber of connector holder (7).Spacing draw-in groove (6) is arranged on flange (14), spacing pocket numbers 1 ~ 4.Filter screen mounting groove (13) is annular groove, is arranged on connecting tendon (12), is between front shroud of impeller (11) and inlet cover (10).
Claims (8)
1. a centrifugal pump casing, this housing has inlet cover and exit guide blade, it is characterized in that, integratedly on housing be provided with pump intake (1), exit guide blade (2), fixing ear (3), penetration pipe (4), label seat (5), spacing draw-in groove (6), connector holder (7), oil drain plug fitting seat (8), seal groove (9), inlet cover (10), front shroud of impeller (11), connecting tendon (12) and filter screen mounting groove (13), pump intake (1) is axial round table-like runner, described round table-like runner is connected radial fan-shaped runner, the fan-shaped runner of described radial direction is by inlet cover (10), front shroud of impeller (11) and connecting tendon (12) are formed, wherein connecting tendon (12) quantity is 2 ~ 6.
2. centrifugal pump casing according to claim 1, is characterized in that, exit guide blade (2) is radial stator, quantity 5 ~ 10; The runner rear formed between exit guide blade by radial steering shaft to (ZC).
3. centrifugal pump casing according to claim 1, is characterized in that, fixing ear (3) is arranged on exit guide blade on (2), and there is blind hole at fixing ear (3) center, and blind hole has internal thread.
4. a kind of centrifugal pump casing bringing lid and exit guide blade into according to claim 1, it is characterized in that, label seat 5 and oil drain plug fitting seat (8) are arranged in inlet cover (10), the porose pass-through entry lid (10) in oil drain plug fitting seat (8) center, the hole of this pass-through entry lid has internal thread.
5. a kind of centrifugal pump casing bringing lid and exit guide blade into according to claim 1, is characterized in that, seal groove (9) is arranged on inlet cover (10) and front shroud of impeller (11).
6. a kind of centrifugal pump casing bringing lid and exit guide blade into according to claim 1, it is characterized in that, penetration pipe (4) runs through an exit guide blade (2), front shroud of impeller (11), a connecting tendon (12) and inlet cover (10), and penetrates into the inner chamber of connector holder (7).
7. a kind of centrifugal pump casing bringing lid and exit guide blade into according to claim 1, is characterized in that, spacing draw-in groove (6) is arranged on flange (14), spacing pocket numbers 1 ~ 4.
8. a kind of centrifugal pump casing bringing lid and exit guide blade into according to claim 1, it is characterized in that, filter screen mounting groove (13) is annular groove, is arranged on connecting tendon (12), is between front shroud of impeller (11) and inlet cover (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510031825.4A CN104675751B (en) | 2015-01-21 | 2015-01-21 | Centrifugal pump case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510031825.4A CN104675751B (en) | 2015-01-21 | 2015-01-21 | Centrifugal pump case |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104675751A true CN104675751A (en) | 2015-06-03 |
| CN104675751B CN104675751B (en) | 2017-01-18 |
Family
ID=53311214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510031825.4A Active CN104675751B (en) | 2015-01-21 | 2015-01-21 | Centrifugal pump case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104675751B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980099A (en) * | 2018-07-03 | 2018-12-11 | 浙江融乐环境科技有限公司 | A kind of semi-closed type water pump impeller |
| CN114307259A (en) * | 2021-12-30 | 2022-04-12 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Pump type oil-gas separator of hydraulic combined transmission generator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2584889Y (en) * | 2002-10-25 | 2003-11-05 | 北京建大流体技术研究院 | Whirlwind centrifugal constant-pressure spray fire pumps |
| CN101482122A (en) * | 2009-02-05 | 2009-07-15 | 上海成峰泵业制造有限公司 | Vertical shield pump |
| CN101660542A (en) * | 2008-08-28 | 2010-03-03 | 上海大学 | Impeller of centrifugal pump |
| JP2012082778A (en) * | 2010-10-14 | 2012-04-26 | Ebara Corp | Centrifugal pump |
| CN103225624A (en) * | 2013-04-24 | 2013-07-31 | 嘉利特荏原泵业有限公司 | Double-casing symmetric type radial subdivision multiple-stage centrifugal pump |
| JP2014231844A (en) * | 2014-09-12 | 2014-12-11 | 株式会社クボタ | Centrifugal pump |
-
2015
- 2015-01-21 CN CN201510031825.4A patent/CN104675751B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2584889Y (en) * | 2002-10-25 | 2003-11-05 | 北京建大流体技术研究院 | Whirlwind centrifugal constant-pressure spray fire pumps |
| CN101660542A (en) * | 2008-08-28 | 2010-03-03 | 上海大学 | Impeller of centrifugal pump |
| CN101482122A (en) * | 2009-02-05 | 2009-07-15 | 上海成峰泵业制造有限公司 | Vertical shield pump |
| JP2012082778A (en) * | 2010-10-14 | 2012-04-26 | Ebara Corp | Centrifugal pump |
| CN103225624A (en) * | 2013-04-24 | 2013-07-31 | 嘉利特荏原泵业有限公司 | Double-casing symmetric type radial subdivision multiple-stage centrifugal pump |
| JP2014231844A (en) * | 2014-09-12 | 2014-12-11 | 株式会社クボタ | Centrifugal pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980099A (en) * | 2018-07-03 | 2018-12-11 | 浙江融乐环境科技有限公司 | A kind of semi-closed type water pump impeller |
| CN114307259A (en) * | 2021-12-30 | 2022-04-12 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Pump type oil-gas separator of hydraulic combined transmission generator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104675751B (en) | 2017-01-18 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |