CN203394833U - Circulation axial flow pump - Google Patents
Circulation axial flow pump Download PDFInfo
- Publication number
- CN203394833U CN203394833U CN201320389190.1U CN201320389190U CN203394833U CN 203394833 U CN203394833 U CN 203394833U CN 201320389190 U CN201320389190 U CN 201320389190U CN 203394833 U CN203394833 U CN 203394833U
- Authority
- CN
- China
- Prior art keywords
- pump shaft
- impeller
- pump
- axial flow
- circulation axial
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a circulation axial flow pump, which comprises a pump body, a pump shaft, an impeller, a liquid inlet and a liquid outlet, wherein the pump shaft is arranged in the pump body, the impeller is fixedly arranged at the front end of the pump shaft, the liquid inlet and the liquid outlet are formed in the pump body, keys and grooves in matched transmission are respectively arranged on the pump shaft and the impeller, a positioning step is arranged on the pump shaft, the impeller is sheathed on the pump shaft, and the back end surface of a wheel hub of the impeller is matched with the positioning step arranged on the pump shaft to be positioned. The circulation axial flow pump also comprises a press plate fixedly arranged at the front end of the pump shaft, and the press plate is in contact with the front end surface of the wheel hub of the impeller. The circulation axial flow pump adopting the structure has the advantages that the length and the moment of the pump shaft are decreased, and the weight of the wheel hub of the impeller is reduced, so the impeller realizes the more stable rotation, meanwhile, the production cost is also reduced, and the economic benefits are increased. In addition, the operation is reliable, and the loading and the unloading are convenient.
Description
Technical field
The utility model relates to a kind of circulation axial-flow pump.
Background technique
The pump shaft of existing circulation axial-flow pump generally adopts flat key to be connected with impeller, utilizes impeller nut end socket.This Placement make pump shaft length compared with long, moment is large, impeller hub is heavier.Particularly, in heavy caliber circulation axial-flow pump, these shortcomings are by progressive an amplification, and in the time of wheel rotation, pump shaft radially wobbles obviously.
Model utility content
For the technical problem of above-mentioned existence, the utility model provides a kind of circulation axial-flow pump, and its impeller adopts pressing plate to be connected with pump shaft, makes pump shaft relatively short, and impeller hub is relatively light.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
, comprise that pump shaft, the pump shaft front end in the pump housing, the pump housing is installed with impeller and is arranged on liquid entering hole and the liquid outlet on the pump housing; On described pump shaft and impeller, be respectively arranged with the key and the groove that coordinate transmission; On described pump shaft, be provided with positioning step; Described impeller is placed on pump shaft, and its wheel hub ear end face coordinates location with the positioning step on pump shaft; Also comprise the pressing plate that is fixed on pump shaft front end, described pressing plate contacts with impeller hub front-end face.
As a kind of preferred, described pressing plate utilization is bolted to pump shaft front end.Facilitate the installation and removal of impeller.
Usefulness of the present utility model is:
The circulation axial-flow pump with said structure, has reduced length and the moment of pump shaft, has alleviated the weight of impeller hub.When impeller is more steadily rotated, also reduce cost of production again, increased economic benefit.And it is reliable, easy to loading and unloading.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of pump shaft and impeller.
Mark in figure: 1 pump housing, 2 pump shafts, 3 impellers, 4 liquid entering holes, 5 liquid outlets, 6 wheel hubs, 7 pressing plates, 8 bolts, 9 keys, 10 grooves.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1-2:
The utility model comprises that pump shaft 2, pump shaft 2 front ends in the pump housing 1, the pump housing 1 are installed with impeller 3 and are arranged on liquid entering hole 4 and the liquid outlet 5 on the pump housing 1; On described pump shaft 2 and impeller 3, be respectively arranged with the key 9 and the groove 10 that coordinate transmission; On described pump shaft 2, be provided with positioning step; Described impeller 3 is placed on pump shaft 2, and its wheel hub 6 ear end faces coordinate location with the positioning step on pump shaft 2; Also comprise the pressing plate 7 that is fixed on pump shaft 2 front ends, pressing plate 7 utilizes bolt 8 to be fixed on pump shaft 2 front ends.Described pressing plate 7 contacts with impeller 3 wheel hub 6 front-end faces.
Key 9 on pump shaft 2 and the groove on impeller 3 10 coordinate transmission, and impeller 3 is moved in a circle.Pressing plate 7 is for being fixed on pump shaft 2 by impeller 3.This Placement, has shortened the length of pump shaft 2, has reduced moment, has also alleviated the weight of impeller 3 wheel hubs 6.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (2)
1. a circulation axial-flow pump, comprises that pump shaft, the pump shaft front end in the pump housing, the pump housing is installed with impeller and is arranged on liquid entering hole and the liquid outlet on the pump housing; On described pump shaft and impeller, be respectively arranged with the key and the groove that coordinate transmission; It is characterized in that: on described pump shaft, be provided with positioning step; Described impeller is placed on pump shaft, and its wheel hub ear end face coordinates location with the positioning step on pump shaft; Also comprise the pressing plate that is fixed on pump shaft front end, described pressing plate contacts with impeller hub front-end face.
2. a kind of circulation axial-flow pump according to claim 1, is characterized in that: described pressing plate utilization is bolted to pump shaft front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320389190.1U CN203394833U (en) | 2013-07-02 | 2013-07-02 | Circulation axial flow pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320389190.1U CN203394833U (en) | 2013-07-02 | 2013-07-02 | Circulation axial flow pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203394833U true CN203394833U (en) | 2014-01-15 |
Family
ID=49906368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320389190.1U Expired - Lifetime CN203394833U (en) | 2013-07-02 | 2013-07-02 | Circulation axial flow pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203394833U (en) |
-
2013
- 2013-07-02 CN CN201320389190.1U patent/CN203394833U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |
|
| CX01 | Expiry of patent term |