CN201661511U - Water pump - Google Patents
Water pump Download PDFInfo
- Publication number
- CN201661511U CN201661511U CN2010201453203U CN201020145320U CN201661511U CN 201661511 U CN201661511 U CN 201661511U CN 2010201453203 U CN2010201453203 U CN 2010201453203U CN 201020145320 U CN201020145320 U CN 201020145320U CN 201661511 U CN201661511 U CN 201661511U
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- CN
- China
- Prior art keywords
- impeller
- split
- wheel hub
- pump shaft
- hub
- 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 - Fee Related
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Abstract
The utility model discloses a water pump. The original design of an impeller is changed, the axial direction of a hub at the water inlet side of the impeller is divided into a large-diameter hub split impeller and a small-diameter split hub, a straddle screw hole is arranged between the large-diameter hub split impeller and a pump shaft, and the straddle screw hole is axially positioned by adopting set screws. Therefore, torsion carrying capacity of interference fit connection between the pump shaft and the impeller is greatly improved, the occurrence of impeller loosening is effectively avoided, and the stable reliability connection between the impeller and the pump shaft is ensured.
Description
Technical field
The present invention relates to a kind of water pump.
Background technique
Impeller is the heart component of water pump, when the design impeller, because of taking into account the factor squeezed of mouth of a river liquid stream to the hydraulics aspects such as influence of pump performance, the wheel hub outer round surface of impeller intake side is airflow design, end diameter is less, as shown in Figure 1, should not adopt key joint, it is designed to interference fit connect to come bearing torque so impeller bore connect with cooperating of pump shaft.But in actual use, a few users is usually with this pump overload operation, the air horsepower of water pump increases, interference fit junction bearing torque is excessive, therefore impeller, pump shaft interference fit connect often has loosening failure mode to take place, this shows, increase the moment of torsion bearing capacity of interference fit junction, is crucial to improving the water pump reliability.
The model utility content
The utility model is at the deficiencies in the prior art, a kind of water pump is provided, change original design of impeller, with the hub spindle of impeller intake side to being divided into major diameter wheel hub split impeller and minor diameter split wheel hub, and between major diameter wheel hub split impeller and pump shaft, offer junction of the edges of two sheets of paper tapped hole, this junction of the edges of two sheets of paper tapped hole adopts the Cock screw axially locating, thereby greatly improve the moment of torsion bearing capacity that interference fit is connected between pump shaft and the impeller, avoided the generation of the loosening phenomenon of impeller effectively, guaranteed that impeller is connected with reliability between the pump shaft.
For realizing above technical purpose, the utility model will be taked following technological scheme:
A kind of water pump, comprise the cantilever type pump shaft and be socketed in impeller on the pump shaft cantilever end, described impeller hub endoporus is the stepped setting of two-part, and the outer round surface of impeller hub water inlet oral-lateral is streamlined, described impeller shaft is set to major diameter wheel hub split impeller and minor diameter split wheel hub to split, offer junction of the edges of two sheets of paper tapped hole between described major diameter wheel hub split impeller end face and the pump shaft, in this junction of the edges of two sheets of paper tapped hole Cock screw is installed.
Described Cock screw is interior hexagonal Cock screw.
The axial length of described minor diameter split wheel hub and its are consistent with the length that effectively is connected between the pump shaft, and both intake outer round surface of oral-lateral of this minor diameter split wheel hub and major diameter wheel hub split impeller link to each other and are streamlined.
According to above technological scheme, can realize following beneficial effect:
The utility model is arranged to major diameter wheel hub split impeller and minor diameter split wheel hub with the hub spindle of impeller intake side to split, and between major diameter wheel hub split impeller and pump shaft, offer junction of the edges of two sheets of paper tapped hole, this junction of the edges of two sheets of paper tapped hole adopts the Cock screw axially locating, thereby greatly improve the moment of torsion bearing capacity that interference fit is connected between pump shaft and the impeller, avoided the generation of the loosening phenomenon of impeller effectively, guarantee that impeller is connected with reliability between the pump shaft, in addition, described in the utility model simple for structure, convenient and reliable;
The axial length of minor diameter split wheel hub described in the utility model and its are consistent with the length that effectively is connected between the pump shaft, and both intake outer round surface of oral-lateral of this minor diameter split wheel hub and major diameter wheel hub split impeller link to each other and are streamlined, hence one can see that, install with the existing streamlined impeller that is wholely set, the utility model has shortened the hub length of water inlet oral-lateral.
Description of drawings
Fig. 1 is a water pump structure schematic representation of the prior art;
Fig. 2 is a structural representation of the present utility model;
Among Fig. 1, impeller 1 ' pump shaft 2 ';
Among Fig. 2, major diameter wheel hub split impeller 11 minor diameter split wheel hubs 12 pump shafts 2 Cock screws 3.
Embodiment
Accompanying drawing discloses an embodiment's of the utility model structural representation without limitation, explains the technical solution of the utility model below with reference to accompanying drawing.
As shown in Figure 2, water pump described in the utility model, comprise cantilever type pump shaft 2 and be socketed in impeller on pump shaft 2 cantilever ends, described impeller hub endoporus is the stepped setting of two-part, two sections adjacent multidiameter shafts that are impeller hub endoporus and pump shaft 2 cantilever ends are connected respectively, and the diameter of end is less, the outer round surface of impeller hub water inlet oral-lateral is streamlined in addition, described impeller shaft is set to major diameter wheel hub split impeller 11 and minor diameter split wheel hub 12 to split, offer junction of the edges of two sheets of paper tapped hole between described major diameter wheel hub split impeller 11 end faces and the pump shaft 2, in this junction of the edges of two sheets of paper tapped hole Cock screw 3 is installed, described Cock screw 3 is interior hexagonal Cock screw, the axial length of described minor diameter split wheel hub 12 and its are consistent with the length that effectively is connected between the pump shaft 2, and both intake outer round surface of oral-lateral of this minor diameter split wheel hub 12 and major diameter wheel hub split impeller 11 link to each other and are streamlined, with the linking section between the stepped endoporus of impeller hub two-part in the excision prior art, consistent the getting final product of effective length of thread engagement of both length of minor diameter split wheel hub 12 and major diameter wheel hub split impeller 11 and impeller-pump shaft 2 of the prior art, thereby shortened the hub length of impeller intake side, increased the moment of torsion bearing capacity that interference fit connects between the pump shaft 2-impeller.
Claims (3)
1. water pump, comprise the cantilever type pump shaft and be socketed in impeller on the pump shaft cantilever end, described impeller hub endoporus is the stepped setting of two-part, and the outer round surface of impeller hub water inlet oral-lateral is streamlined, it is characterized in that, described impeller shaft is set to major diameter wheel hub split impeller and minor diameter split wheel hub to split, offers junction of the edges of two sheets of paper tapped hole between described major diameter wheel hub split impeller end face and the pump shaft, in this junction of the edges of two sheets of paper tapped hole Cock screw is installed.
2. water pump according to claim 1 is characterized in that, described Cock screw is interior hexagonal Cock screw.
3. water pump according to claim 1, it is characterized in that, the axial length of described minor diameter split wheel hub and its are consistent with the length that effectively is connected between the pump shaft, and both intake outer round surface of oral-lateral of this minor diameter split wheel hub and major diameter wheel hub split impeller link to each other and are streamlined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201453203U CN201661511U (en) | 2010-03-30 | 2010-03-30 | Water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201453203U CN201661511U (en) | 2010-03-30 | 2010-03-30 | Water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201661511U true CN201661511U (en) | 2010-12-01 |
Family
ID=43231928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201453203U Expired - Fee Related CN201661511U (en) | 2010-03-30 | 2010-03-30 | Water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201661511U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103317307A (en) * | 2013-06-10 | 2013-09-25 | 中国北方发动机研究所(天津) | Bi-arc self-locking interference threaded connection method and structure for titanium aluminum turbine and spindle |
| CN104533807A (en) * | 2014-12-17 | 2015-04-22 | 哈尔滨电气动力装备有限公司 | Auxiliary impeller hydraulic model testing device |
-
2010
- 2010-03-30 CN CN2010201453203U patent/CN201661511U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103317307A (en) * | 2013-06-10 | 2013-09-25 | 中国北方发动机研究所(天津) | Bi-arc self-locking interference threaded connection method and structure for titanium aluminum turbine and spindle |
| CN103317307B (en) * | 2013-06-10 | 2015-10-21 | 中国北方发动机研究所(天津) | The bicircular arcs self-locking interference thread method of attachment of titanium aluminium turbine and rotating shaft and structure |
| CN104533807A (en) * | 2014-12-17 | 2015-04-22 | 哈尔滨电气动力装备有限公司 | Auxiliary impeller hydraulic model testing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101201 Termination date: 20150330 |
|
| EXPY | Termination of patent right or utility model |