CN103629150A - Sewage pump with automatic axial thrust balancing function - Google Patents
Sewage pump with automatic axial thrust balancing function Download PDFInfo
- Publication number
- CN103629150A CN103629150A CN201210313602.3A CN201210313602A CN103629150A CN 103629150 A CN103629150 A CN 103629150A CN 201210313602 A CN201210313602 A CN 201210313602A CN 103629150 A CN103629150 A CN 103629150A
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- China
- Prior art keywords
- impeller
- axial force
- pump
- pollution discharge
- balancing axial
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Abstract
The invention relates to a sewage pump with an automatic axial thrust balancing function. The sewage pump comprises a pump body and an impeller which is provided with a hub. A water groove is formed in the hub. A connecting hole and a water outlet are formed in the pump body. The water groove is connected with the connecting hole and the water outlet in sequence. High-pressure water in the impeller is discharged from the pump body through the water groove in the hub, the connecting hole and the water outlet in sequence, and axial thrust is balanced. Compared with the prior art, the sewage pump has the advantages that axial thrust is automatically balanced, the structure is simple, and service life is long.
Description
Technical field
The present invention relates to a kind of pollution discharge pump, especially relate to a kind of pollution discharge pump with automatically balancing axial force function.
Background technique
Pollution discharge pump because impeller hydraulic action inevitably exists axial force, due to the existence of this axial force, makes motor bearings easily damage, with the stationary ring sealing opportunity, be subject to pointing to the thrust of rotating ring when operation, has affected the working life that machine seals.In order to address these problems, at present conventional method has plenty of at the back side of impeller and adds seal ring, and opens equalizing orifice with balancing axial thrust; Have plenty of after impeller and added again a back impeller or back blade, carry out balancing axial thrust.Although these methods can play the effect of balancing axial thrust, to the extra power consumpiton of motor more greatly, simultaneously also larger to the effectiveness affects of pump.
Summary of the invention
Object of the present invention is exactly the pollution discharge pump that a kind of simple in structure, long service life is provided in order to overcome the defect that above-mentioned prior art exists, has automatically balancing axial force function.
Object of the present invention can be achieved through the following technical solutions:
A kind of pollution discharge pump with automatically balancing axial force function, comprise the pump housing and impeller, described impeller is provided with wheel hub, on described wheel hub, have tank, the described pump housing is provided with attachment hole and osculum, described tank is connected with osculum with attachment hole successively, and the high pressure water in described impeller is discharged the pump housing, balancing axial thrust by the tank on wheel hub, attachment hole and osculum successively.
On the described pump housing, be inlaid with seal ring, the external diameter of described wheel hub and the internal diameter of seal ring are Spielpassung.
Described seal ring is made by copper.
Described gap is 0.15～0.2mm.
The wide of described tank is 4～8mm, is 4～9mm deeply.
The length of described osculum is 15～22mm, and wide is 5～8mm.
Compared with prior art, the present invention has the following advantages:
1) the present invention outputs a tank on the wheel hub of impeller, also casts out a hole on the pump housing, and the blowhole that the appropriate high pressure water at pump impeller back side when operation enters on the pump housing by the tank on wheel hub discharges, thus balancing axial thrust;
2) seal ring that a material is copper is inlayed at the position that the present invention fills impeller hub on the pump housing, and the seal ring of copper is difficult for getting rusty, so pump is when restart in Long-time Shut-down, can not kill because seal ring gets rusty and cause even motor damage of electric motor starting difficulty.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of impeller of the present invention;
Fig. 3 is the structural representation of the pump housing of the present invention;
Fig. 4 is the plan view of impeller of the present invention;
Fig. 5 is the structural representation of seal ring of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
As Figure 1-Figure 5, a kind of pollution discharge pump with automatically balancing axial force function, comprise the pump housing 2 and impeller 1, described impeller 1 is provided with wheel hub 11, on described wheel hub 11, have tank 111, the described pump housing 2 is provided with attachment hole 22 and osculum 21, and osculum 21 connects with attachment hole 22, and described tank 111 is connected with osculum 21 with attachment hole 22 successively.On the described pump housing 2, be inlaid with seal ring 3, the external diameter of described wheel hub 11 and the internal diameter of seal ring 3 are Spielpassung, and monolateral gap is 0.15mm.Described seal ring 3 is made by copper.
In the present embodiment, the wide of described tank 111 is 4mm, is 9mm deeply; The length of described osculum 21 is 15mm, and wide is 8mm.
The above-mentioned working principle with the pollution discharge pump of automatically balancing axial force function is: pump is when operation, the interior appropriate high pressure water of impeller 1 cavity 4 below enters attachment hole 22 by tank 111, through attachment hole 22, flowing into osculum 21 is discharged to outside pump, impeller pressure has below fallen at the end, thus balance axial force.
Shown in Fig. 1-Fig. 5, the present embodiment has the pollution discharge pump of automatically balancing axial force function, and the wide of the tank 111 on wheel hub 11 is 8mm, is 4mm deeply; The length of the osculum 21 on the pump housing 2 is 22mm, and wide is 5mm.All the other are with embodiment 1.
Claims (6)
1. a pollution discharge pump with automatically balancing axial force function, comprise the pump housing and impeller, described impeller is provided with wheel hub, it is characterized in that, on described wheel hub, have tank, the described pump housing is provided with attachment hole and osculum, and described tank is connected with osculum with attachment hole successively, high pressure water in described impeller is discharged the pump housing, balancing axial thrust by the tank on wheel hub, attachment hole and osculum successively.
2. a kind of pollution discharge pump with automatically balancing axial force function according to claim 1, is characterized in that, on the described pump housing, is inlaid with seal ring, and the external diameter of described wheel hub and the internal diameter of seal ring are Spielpassung.
3. a kind of pollution discharge pump with automatically balancing axial force function according to claim 2, is characterized in that, described seal ring is made by copper.
4. a kind of pollution discharge pump with automatically balancing axial force function according to claim 2, is characterized in that, described gap is 0.15～0.2mm.
5. a kind of pollution discharge pump with automatically balancing axial force function according to claim 1, is characterized in that, the wide of described tank is 4～8mm, is 4～9mm deeply.
6. a kind of pollution discharge pump with automatically balancing axial force function according to claim 1, is characterized in that, the length of described osculum is 15～22mm, and wide is 5～8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210313602.3A CN103629150A (en) | 2012-08-29 | 2012-08-29 | Sewage pump with automatic axial thrust balancing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210313602.3A CN103629150A (en) | 2012-08-29 | 2012-08-29 | Sewage pump with automatic axial thrust balancing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103629150A true CN103629150A (en) | 2014-03-12 |
Family
ID=50210525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210313602.3A Pending CN103629150A (en) | 2012-08-29 | 2012-08-29 | Sewage pump with automatic axial thrust balancing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103629150A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154030A (en) * | 2014-07-15 | 2014-11-19 | 中国核电工程有限公司 | Novel-structural impeller capable of performing dynamic balance correction |
| CN104343747A (en) * | 2014-10-14 | 2015-02-11 | 清华大学 | Axial force balancing structure of centrifugal closed impeller |
| CN105604952A (en) * | 2016-01-03 | 2016-05-25 | 詹白勺 | Vertical centrifugal oil pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2099209U (en) * | 1991-07-02 | 1992-03-18 | 林聿忠 | Magnetic pump ofbalancing axial force type |
| JPH07119676A (en) * | 1993-10-27 | 1995-05-09 | Ebara Corp | Vertical shaft multistage pump |
| CN101153610A (en) * | 2006-09-29 | 2008-04-02 | 上海东方泵业(集团)有限公司 | Improved axial force balance mechanism of centrifugal pump impeller |
| CN102022341A (en) * | 2010-06-09 | 2011-04-20 | 马明文 | Mortar magnetic pump |
| CN202883463U (en) * | 2012-08-29 | 2013-04-17 | 上海瑞邦机械集团有限公司 | Pollution discharge pump with automatic axial force balancing function |
-
2012
- 2012-08-29 CN CN201210313602.3A patent/CN103629150A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2099209U (en) * | 1991-07-02 | 1992-03-18 | 林聿忠 | Magnetic pump ofbalancing axial force type |
| JPH07119676A (en) * | 1993-10-27 | 1995-05-09 | Ebara Corp | Vertical shaft multistage pump |
| CN101153610A (en) * | 2006-09-29 | 2008-04-02 | 上海东方泵业(集团)有限公司 | Improved axial force balance mechanism of centrifugal pump impeller |
| CN102022341A (en) * | 2010-06-09 | 2011-04-20 | 马明文 | Mortar magnetic pump |
| CN202883463U (en) * | 2012-08-29 | 2013-04-17 | 上海瑞邦机械集团有限公司 | Pollution discharge pump with automatic axial force balancing function |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154030A (en) * | 2014-07-15 | 2014-11-19 | 中国核电工程有限公司 | Novel-structural impeller capable of performing dynamic balance correction |
| CN104343747A (en) * | 2014-10-14 | 2015-02-11 | 清华大学 | Axial force balancing structure of centrifugal closed impeller |
| CN104343747B (en) * | 2014-10-14 | 2016-09-21 | 清华大学 | A kind of centrifugal double shrouded wheel axial force balance structure |
| CN105604952A (en) * | 2016-01-03 | 2016-05-25 | 詹白勺 | Vertical centrifugal oil pump |
| CN105604952B (en) * | 2016-01-03 | 2018-02-13 | 浙江水泵总厂有限公司 | Vertical centrifugal oil pump |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140312 |