CN107503977A - The withdrawable water pump of rotor that a kind of stator, runner envelope are fixed - Google Patents
The withdrawable water pump of rotor that a kind of stator, runner envelope are fixed Download PDFInfo
- Publication number
- CN107503977A CN107503977A CN201710708715.6A CN201710708715A CN107503977A CN 107503977 A CN107503977 A CN 107503977A CN 201710708715 A CN201710708715 A CN 201710708715A CN 107503977 A CN107503977 A CN 107503977A
- Authority
- CN
- China
- Prior art keywords
- water pump
- diffuser
- bearing spider
- cylinder body
- outer cylinder
- 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.)
- Pending
Links
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
- F04D29/22—Rotors specially for centrifugal 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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides the withdrawable water pump of rotor that a kind of stator, runner envelope are fixed, including water pump outer cylinder body and dismountable water pump core pulling rotor part being arranged in water pump outer cylinder body, water pump outer cylinder body includes water-inlet horn, is arranged on the runner envelope being connected by bolt above water-inlet horn and with water-inlet horn, is arranged on the diffuser being connected by bolt above runner envelope and with runner envelope and is arranged on diffuser top and the extension tube attached being connected by bolt with diffuser；Water pump core pulling rotor part includes being arranged on the bearing spider inside water pump outer cylinder body, is arranged on the sleeve being connected by bolt above bearing spider and with bearing spider, the guide bearing for being arranged on bearing spider and being connected by bolt with bearing spider, the impeller and pump shaft being arranged on below bearing spider；Diffuser of the present invention eliminates stator outer barrel, which reduces the internal diameter for the extension tube attached being connected with diffuser directly as a water pump outer cylinder body part so that whole water pump weight saving, cost reduce.
Description
Technical field
The present invention relates to water pump field, more particularly to a kind of stator, the withdrawable water pump of rotor of runner envelope fixation.
Background technology
Current domestic power plant's major cycle water pump mostly uses core-extracting type water pump, but diffuser and runner envelope are also as core pulling
Part is extracted out together, causes core pulling component weight overweight, it is necessary to which bigger driving is lifted by crane, while is also due to diffuser and runner
Room is extracted out together, causes pump barrel extracorporeal tubing internal diameter to increase, while in order to ensure that area of passage is constant, is increased again outside sleeve pipe
Footpath, increase for cost a lot.
Shown in Figure 1, existing core-extracting type water pump includes：Water-inlet horn 1；Also include：Runner envelope 2, diffuser 3, stator
Outer barrel 4, extension tube attached 5, sleeve pipe 6, guide bearing 7, impeller 8 and pump shaft 9；Described water pump is first had to outside a water-inlet horn 1 and stator
Cylinder 4 is bolted, and stator outer barrel 4 and extension tube attached 5 are bolted, this three composition outer barrel body portions；The He of runner envelope 2
Diffuser 3 is bolted, and diffuser 3 is bolted sleeve pipe 6, and guide bearing 7 is bolted on diffuser 3,
Impeller 8 and pump shaft 9 constitute core pulling part by key connection, the above six.Such a structure, due to diffuser and runner envelope together
Extract out, cause pump barrel extracorporeal tubing internal diameter to increase, while in order to ensure that area of passage is constant, increase sleeve outer again, for
Cost increase is a lot, also there is the deficiencies of hoisting weight is excessive.
The content of the invention
The technical problem to be solved in the present invention is to provide it is a kind of it is simple in construction, cost is low, be easily installed maintenance stator, turn
The withdrawable water pump of rotor that engineer room is fixed.
To reach above-mentioned purpose, technical scheme is as follows：
The withdrawable water pump of rotor that a kind of stator, runner envelope are fixed, including water pump outer cylinder body and dismountable setting
Water pump core pulling rotor part in water pump outer cylinder body, the water pump outer cylinder body include：
One water-inlet horn；
One is arranged on the runner envelope being connected by bolt above water-inlet horn and with water-inlet horn；
One is arranged on the diffuser being connected by bolt above runner envelope and with runner envelope；
One is arranged on the extension tube attached being connected by bolt above diffuser and with diffuser；
The water pump core pulling rotor part includes：
One bearing spider, bearing spider are arranged on inside water pump outer cylinder body, and it is connected between diffuser by taper, axle
Holding bearing can extract out at extension tube attached；
One is arranged on the sleeve being connected by bolt above bearing spider and with bearing spider；
One guide bearing for being arranged on bearing spider and being connected by bolt with bearing spider, guide bearing, sleeve pipe, bearing branch
The vertical central axis of seat is point-blank；
One is arranged on the impeller below bearing spider；
One pump shaft, one end of pump shaft sequentially passes through sleeve pipe, guide bearing, impeller, and is fixed on by key in impeller.
In one embodiment of the invention, the bearing spider is respectively equipped with chromium coating with two mating surfaces in diffuser.
Pass through above-mentioned technical proposal, the beneficial effects of the invention are as follows：
1st, extraction section weight substantially reduces, and at least 40%, driving hoisting weight, safety and reliability can be reduced；
2nd, diffuser and runner envelope are bolted between water-inlet horn and extension tube attached, kept away as water pump outer cylinder body
Exempt from the event of rotating.
3rd, reduce water pump outer cylinder body, casing size, reduce whole pump weight, reduce cost, more compact structure is more efficient.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is existing core-extracting type water pump structural representation；
1st, water-inlet horn 2, runner envelope 3, diffuser 4, stator outer barrel 5, extension tube attached 6, sleeve pipe 7, guide bearing 8, leaf
Wheel 9, pump shaft；
Fig. 2 is the withdrawable water pump structure schematic diagram of rotor of the present invention；
Corresponding component title of the numeral represented by with letter in figure：
10th, water-inlet horn 20, runner envelope 30, diffuser 40, extension tube attached 50, bearing spider 60, sleeve 70, guide shaft
Hold 80, impeller 90, pump shaft.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
Shown in Figure 2, the invention discloses the withdrawable water pump of rotor that a kind of stator, runner envelope are fixed, including water
Pump outer cylinder body and dismountable water pump core pulling rotor part being arranged in water pump outer cylinder body.
Water pump outer cylinder body includes water-inlet horn 10, is arranged on what is be connected by bolt above water-inlet horn and with water-inlet horn
Runner envelope 20, it is arranged on the diffuser 30 being connected by bolt above runner envelope and with runner envelope and is arranged on above diffuser
And the extension tube attached 40 being connected by bolt with diffuser.
Water pump core pulling rotor part includes being arranged on bearing spider 50 inside water pump outer cylinder body, is arranged on bearing spider
Side and be connected by bolt with bearing spider sleeve 60, be arranged on bearing spider and be connected by bolt with bearing spider
Guide bearing 70, the impeller 80 being arranged on below bearing spider and pump shaft 90；Pass through taper between bearing spider 5 and diffuser 30
Connection, can be automatically positioned, it is ensured that with one heart, bearing spider 50 can be extracted out at extension tube attached 40, the inner support face internal diameter of diffuser 30
Less than the external diameter of impeller 80, it is ensured that smoothly extract out；While in order to ensure that bearing spider 50 can be suitable from the inner support face of diffuser 30
Profit is extracted out, and two mating surfaces are respectively equipped with chromium coating in bearing spider 50 and diffuser 30, chromium coating also add anticorrosive property and
Wearability；Guide bearing 70, sleeve pipe 60, bearing spider 50 vertical central axis point-blank；One end of pump shaft 90 is successively
It is fixed on through sleeve pipe 60, guide bearing 70, impeller 80, and by key in impeller 80.
The present invention first installs water pump outer cylinder body when mounted, then water pump core pulling rotor part is inserted into water pump outer cylinder body
It is interior, it is very convenient, only need to extract out water pump core pulling rotor part in turn, during maintenance, and diffuser and runner envelope are
As a part of fixed of water pump outer cylinder body, really accomplish that rotor can be taken out.
The present invention is because diffuser is directly as an outer cylinder body part, outside the stator for eliminating existing core-extracting type water pump structure
Cylinder, which reduces the internal diameter for the extension tube attached being connected with diffuser, while in order to ensure that area of passage is consistent, sleeve outer chi
Very little to reduce therewith, so whole water pump weight saving, cost reduces.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (2)
1. the withdrawable water pump of rotor that a kind of stator, runner envelope are fixed, including water pump outer cylinder body and be removably arranged on
Water pump core pulling rotor part in water pump outer cylinder body, it is characterised in that the water pump outer cylinder body includes：
One water-inlet horn；
One is arranged on the runner envelope being connected by bolt above water-inlet horn and with water-inlet horn；
One is arranged on the diffuser being connected by bolt above runner envelope and with runner envelope；
One is arranged on the extension tube attached being connected by bolt above diffuser and with diffuser；
The water pump core pulling rotor part includes：
One bearing spider, bearing spider are arranged on inside water pump outer cylinder body, and it is connected between diffuser by taper, bearing branch
Seat can be extracted out at extension tube attached；
One is arranged on the sleeve being connected by bolt above bearing spider and with bearing spider；
One guide bearing for being arranged on bearing spider and being connected by bolt with bearing spider, guide bearing, sleeve pipe, bearing spider
Vertical central axis is point-blank；
One is arranged on the impeller below bearing spider；
One pump shaft, one end of pump shaft sequentially passes through sleeve pipe, guide bearing, impeller, and is fixed on by key in impeller.
2. the withdrawable water pump of rotor that a kind of stator according to claim 1, runner envelope are fixed, it is characterised in that institute
State bearing spider and be respectively equipped with chromium coating with two mating surfaces in diffuser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710708715.6A CN107503977A (en) | 2017-08-17 | 2017-08-17 | The withdrawable water pump of rotor that a kind of stator, runner envelope are fixed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710708715.6A CN107503977A (en) | 2017-08-17 | 2017-08-17 | The withdrawable water pump of rotor that a kind of stator, runner envelope are fixed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107503977A true CN107503977A (en) | 2017-12-22 |
Family
ID=60691299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710708715.6A Pending CN107503977A (en) | 2017-08-17 | 2017-08-17 | The withdrawable water pump of rotor that a kind of stator, runner envelope are fixed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107503977A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114193151A (en) * | 2021-11-17 | 2022-03-18 | 中核检修有限公司 | Bearing guide ring installation method and bearing guide ring installation mechanism |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2802143Y (en) * | 2005-06-28 | 2006-08-02 | 上海凯泉泵业（集团）有限公司 | Shaft mounted vertical diagonal pump |
| JP2006226169A (en) * | 2005-02-17 | 2006-08-31 | Kubota Corp | Pump structure |
| CN1904376A (en) * | 2006-07-31 | 2007-01-31 | 上海凯泉泵业（集团）有限公司 | Improved vertical diagonal flow pump |
| JP2008088905A (en) * | 2006-10-02 | 2008-04-17 | Hitachi Plant Technologies Ltd | Vertical shaft pump |
| CN104179689A (en) * | 2013-05-20 | 2014-12-03 | 株式会社日立制作所 | Draw-out type vertical-shaft pump |
| CN207212746U (en) * | 2017-08-17 | 2018-04-10 | 上海凯泉泵业（集团）有限公司 | The withdrawable water pump of rotor that a kind of stator, runner envelope are fixed |
-
2017
- 2017-08-17 CN CN201710708715.6A patent/CN107503977A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006226169A (en) * | 2005-02-17 | 2006-08-31 | Kubota Corp | Pump structure |
| CN2802143Y (en) * | 2005-06-28 | 2006-08-02 | 上海凯泉泵业（集团）有限公司 | Shaft mounted vertical diagonal pump |
| CN1904376A (en) * | 2006-07-31 | 2007-01-31 | 上海凯泉泵业（集团）有限公司 | Improved vertical diagonal flow pump |
| JP2008088905A (en) * | 2006-10-02 | 2008-04-17 | Hitachi Plant Technologies Ltd | Vertical shaft pump |
| CN104179689A (en) * | 2013-05-20 | 2014-12-03 | 株式会社日立制作所 | Draw-out type vertical-shaft pump |
| CN207212746U (en) * | 2017-08-17 | 2018-04-10 | 上海凯泉泵业（集团）有限公司 | The withdrawable water pump of rotor that a kind of stator, runner envelope are fixed |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114193151A (en) * | 2021-11-17 | 2022-03-18 | 中核检修有限公司 | Bearing guide ring installation method and bearing guide ring installation mechanism |
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