CN201284779Y - Impeller nut - Google Patents
Impeller nut Download PDFInfo
- Publication number
- CN201284779Y CN201284779Y CNU2008201531008U CN200820153100U CN201284779Y CN 201284779 Y CN201284779 Y CN 201284779Y CN U2008201531008 U CNU2008201531008 U CN U2008201531008U CN 200820153100 U CN200820153100 U CN 200820153100U CN 201284779 Y CN201284779 Y CN 201284779Y
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- China
- Prior art keywords
- nut
- impeller
- utility
- model
- pump
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- Expired - Fee Related
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Abstract
The utility model discloses an impeller nut, comprising a nut top part and nut rear part; wherein, the nut top part is of hemispheric structure; the nut rear part extends toward the lower side of the nut top part and outwards and downwards. The inner hole of the nut rear part is a thread hole. The external shape of the nut rear part is of hexagon which is matched with a hex spanner and facilitates tightening. The utility model is characterized in that an impeller blade is arranged on the nut rear part. The utility model can prevent the generation of flowing liquid eddy and have a certain energy transfer effect on the flowing liquid, thus reducing the hydraulic loss, saving the energy, improving the hydraulic efficiency of the water pump and expanding the range of the high-efficiency area of the pump.
Description
Technical field:
The utility model relates to a kind of nut, is exactly a kind of impeller nut specifically.
Background technique:
In the design of modern pump, the efficient that improves pump is the pursuit of people's maximum.In many factors that influences pump efficiency, the hydraulic loss maximum of pump, it is also maximum therefore to exploit potentialities.The design theory of pump does not break through for many years, even the Aided Design of computer also mainly relies on designer's experience to determine design result.Therefore the hydraulic efficiency of pump improves slowly, even stagnation, and the hydraulic efficiency that improves pump becomes designer's main brainstorm subject.
At present in the waterpower design of pump, people concentrate on main energy on the shaped design of impeller blade, make every effort to improve by the shape that changes blade the hydraulic efficiency of pump, because design theory does not change, design method does not break through, and the raising of pump hydraulic efficiency produces little effect.The efficient of general pump series products is generally acknowledged on a level, even can improve one percentage point, all is that people expect.Therefore can not be ignored by people for the nut design that is used for locking impeller of pump, with reference to figure 1, shown in Figure 2, this is the impeller nut design of conventional pump, its nut end 1 is spherical, be used for reducing the liquid resistance effect, nut afterbody 2 is a hexagonal shaped, is convenient to tighten, the fixedly effect of impeller, its nut also is provided with internal thread 3.Be installed in impeller 4 backs (as Fig. 3) at the conventional impellers nut, it is except locking impeller 4, people only note reducing its resistance to liquid stream, do not allow it play other effect, and in the pump using process, two regional A between conventional impellers nut and the blade 5, form eddy current easily, influence flowing of liquid, increased hydraulic loss, reduced the efficient of pump.
The model utility content:
The utility model purpose provide a kind of can energy saving, improve the impeller nut of the efficient district scope of hydraulic efficiency, expansion pump, thereby remedied the deficiency of above-mentioned prior art problem.
For real above-mentioned purpose, the technical solution of the utility model is as follows:
A kind of impeller nut comprises: nut top, this nut top are the semicircle spheroidal structure; Outside and the nut rear that extend downwards along the nut top downside, this nut rear endoporus is circular, the profile of nut rear is a hexagonal shaped, can tighten with suitable being convenient to of hexagonal shaped spanner; Be arranged on the internal thread in the nut; It is characterized in that, be provided with the impeller gear piece in described nut rear.
In above-mentioned a kind of impeller nut, wherein, described impeller gear piece be provided with number with joining impeller lobe numbers identical, this impeller gear piece is radial arrangement on the circumference of nut rear, avoided the generation of working fluid eddy current, working fluid has been had the certain energy transfer function.
In above-mentioned a kind of impeller nut, wherein, the angular range of the circumferential surface of described impeller gear piece and nut rear is 0～45 degree, prevents the generation of working fluid eddy current, and working fluid is had the certain energy transfer function.
A kind of impeller nut of the utility model not only has advantage of the prior art, and compared with prior art have advantage and be, the utility model is owing to be provided with the impeller gear piece in nut rear, prevent the generation of working fluid eddy current, and working fluid had the certain energy transfer function, thus reduced hydraulic loss, saved energy, improve the water pump hydraulic efficiency, expanded the efficient district scope of pump.
Description of drawings:
Further specify the utility model below in conjunction with the drawings and specific embodiments.
Fig. 1 is the side-looking structural representation of existing impeller nut.
Fig. 2 is the structural front view of prior art impeller nut.
Fig. 3 is prior art impeller nut one embodiment's schematic representation.
Fig. 4 is the side-looking structural representation of a kind of impeller nut of the utility model.
A kind of impeller nut structural front view that Fig. 5 the utility model proposes for foundation.
Fig. 6 is a kind of impeller nut one embodiment's schematic representation of the utility model.
Embodiment:
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Please refer to Fig. 4 and shown in Figure 5, the structure of a kind of impeller nut of the utility model comprises, nut top 10, nut rear 20, is arranged on the internal thread 30 in the nut; Be arranged on the impeller nut gear piece 21 of nut rear 20; Wherein, nut top 10 is fabricated to the semicircle spheroidal structure, is used for reducing the liquid resistance effect; Outside and the nut rear 20 that extend downwards along the nut top downside, this nut rear 20 is provided with circular inner hole, and this circular inner hole is made internal thread 30, and this endoporus extends to nut top 10, is set to the cone cavity in nut top 10 holes.
In the utility model, nut rear 20 profiles are fabricated to the hexagonal shaped shape, can match with hexagonal spanner, are convenient to tighten.Make at the tail end of nut rear 20 and to be impeller gear piece 21, the quantity of this impeller gear piece 21 is identical with blade 5 quantity on being installed in impeller 4, and impeller gear piece 21 length, thin and thick, height are decided according to shape, the size of the impeller 4 that will install; Impeller gear piece 21 can become radial arrangement, can avoid the generation of working fluid eddy current, also can become 45 degree to arrange with the angle of the circumferential surface of nut rear, can effectively the certain energy transfer function be arranged to working fluid, thereby played the effect that improves the water pump hydraulic efficiency, in the utility model when the angular range of impeller gear piece 21 and the circumferential surface of nut rear when 0～45 spends, for impeller gear piece 21 energy transfer effects are optimum range.
With reference to figure 6, in the present embodiment, the utility model is to tighten on the pump shaft 7 by spanner, and impeller 4 is fixed on the pump shaft 7, adds a packing ring 6 between impeller 4 and the nut, prevents nut loosening and impeller 4 end faces are protected.Pump in use, flow of liquid is through nut top 10, owing to adopt spheroidal structure, reduced the resistance of liquid stream; Between nut and blade 5, because impeller gear piece 21 effects of nut rear make impeller 5 in the process of rotation, avoided the formation of eddy current, and working fluid has been had the certain energy transfer function, saved energy, improved the water pump hydraulic efficiency.
More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1, a kind of impeller nut comprises: nut top, this nut top are the semicircle spheroidal structure; Along the nut rear that nut top is extended downwards, this nut rear endoporus is a tapped hole, and the profile of nut rear is a hexagonal shaped;
It is characterized in that:
Be provided with the impeller gear piece in described nut rear.
2, a kind of impeller nut according to claim 1 is characterized in that, described impeller gear piece be provided with number with joining impeller lobe numbers identical, this impeller gear piece is radial arrangement on the circumference of nut rear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201531008U CN201284779Y (en) | 2008-09-17 | 2008-09-17 | Impeller nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201531008U CN201284779Y (en) | 2008-09-17 | 2008-09-17 | Impeller nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201284779Y true CN201284779Y (en) | 2009-08-05 |
Family
ID=40949764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201531008U Expired - Fee Related CN201284779Y (en) | 2008-09-17 | 2008-09-17 | Impeller nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201284779Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362860A (en) * | 2012-04-02 | 2013-10-23 | 珠海格力电器股份有限公司 | High-speed hydrodynamic machine and composition method and assembly method of rotor of high-speed hydrodynamic machine |
| CN105723095A (en) * | 2013-11-12 | 2016-06-29 | 川崎重工业株式会社 | Rotary unit |
-
2008
- 2008-09-17 CN CNU2008201531008U patent/CN201284779Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362860A (en) * | 2012-04-02 | 2013-10-23 | 珠海格力电器股份有限公司 | High-speed hydrodynamic machine and composition method and assembly method of rotor of high-speed hydrodynamic machine |
| CN105723095A (en) * | 2013-11-12 | 2016-06-29 | 川崎重工业株式会社 | Rotary unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090805 Termination date: 20110917 |