CN203321864U - Pump shaft of vertical pump - Google Patents
Pump shaft of vertical pump Download PDFInfo
- Publication number
- CN203321864U CN203321864U CN2013202688144U CN201320268814U CN203321864U CN 203321864 U CN203321864 U CN 203321864U CN 2013202688144 U CN2013202688144 U CN 2013202688144U CN 201320268814 U CN201320268814 U CN 201320268814U CN 203321864 U CN203321864 U CN 203321864U
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- CN
- China
- Prior art keywords
- pump
- shaft
- impeller
- center hole
- keys
- 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 relates to a pump shaft of a vertical pump. The pump shaft of the vertical pump comprises a shaft body, wherein the shaft body is installed in a center hole of an impeller, and four to twelve shaft keys are arranged on the outer side of the shaft body; key grooves which are matched with the multiple shaft keys are formed in the center hole, wherein the number of the key grooves is the same as that of the shaft keys. The shaft body is provided with the multiple shaft keys, the key grooves which are matched with the multiple shaft keys are formed in the center hole of the impeller, as a result, the position where the impeller makes contact with the pump shaft is not prone to distortion due to the fact that the multiple shaft keys are matched with the key grooves after the shaft body is installed in the center hole of the impeller, the impeller is effectively prevented from being damaged, a large number of resources are saved, and cost is reduced greatly.
Description
Technical field
The utility model relates to the vertical pump field, relates in particular to a kind of vertical pump pump shaft.
Background technique
Pump is the machinery of carrying liquid or making the liquid supercharging.It sends the mechanical energy of prime mover or other external energies to liquid, liquid energy is increased, be mainly used to carry liquid to comprise water, oil, acid & alkali liquid, emulsified liquid, suspended emulsion and liquid metal etc., the liquid that also can carry liquid, gaseous mixture and contain suspended solids.The technical parameter of weighing pump performance has flow, inhales journey, lift, air horsepower, water-horse power, efficiency etc.; Can be divided into the types such as volume water pump, vane pump according to different working principles.Displacement pump is to utilize the variation of its swept volume of a single chamber to carry out transferring energy; Vane pump is to utilize the interaction of rotary vane and water to carry out transferring energy, and the types such as centrifugal pump, axial-flow pump and mixed flow pump are arranged.
In prior art, the impeller center hole of water pump is provided with pump shaft, most of pump shafts are that a protruding key is set on axis body, be provided with the keyway matched with protruding key on the impeller center hole, but in vertical pump, the very thin thickness of impeller, when high speed rotating, pump shaft easily makes the contacting point distortion of impeller and pump shaft, causes the impeller deformed damaged, causes whole vertical pump to lose efficacy.
The model utility content
In view of this, be necessary to provide a kind of applicable vertical pump, be difficult for making the vertical pump pump shaft of impeller torsional deformation.
The utility model is achieved in that a kind of vertical pump pump shaft, comprises axis body, and described axis body is arranged on the center hole of impeller, and the outside of described axis body is provided with 4 ~ 12 axle keys, and described center hole is provided with the keyway cooperatively interacted with described a plurality of axle keys.
Further, the quantity of described keyway is consistent with the quantity of described axle key.
Further, the quantity of described axle key is 6.
The advantage of a kind of vertical pump pump shaft that the utility model provides is: a plurality of axle keys are set on axis body, and be provided with the keyway cooperatively interacted with described a plurality of axle keys on the center hole of impeller, after axis body is installed on the center hole of impeller, cooperation by a plurality of axle keys and keyway, be not easy to make the contacting point torsional deformation of impeller and pump shaft, effectively prevent the damage of impeller, save ample resources and cost.
The accompanying drawing explanation
The structural representation that Fig. 1 is a kind of vertical pump pump shaft of the utility model.
The structural representation that Fig. 2 is impeller.
Embodiment
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.
See also Fig. 1 and Fig. 2, the structural representation that Fig. 1 is a kind of vertical pump pump shaft of the utility model, the structural representation that Fig. 2 is impeller.
Described a kind of vertical pump pump shaft, comprise axis body 10, described axis body 10 is arranged on the center hole 21 of impeller 20, the outside of described axis body 10 is provided with 4 ~ 12 axle keys 11, described center hole 21 is provided with the keyway 22 cooperatively interacted with described axle key 11, and the quantity of described keyway 22 is consistent with the quantity of described axle key 11.
By facts have proved, when the quantity of described axle key 11 is 6, using effect the best, and easily manufactured.
A plurality of axle keys 11 are set on axis body 10, and be provided with the keyway 22 cooperatively interacted with described a plurality of axle keys 11 on the center hole 21 of impeller 20, after axis body 10 is installed on the center hole 21 of impeller 20, cooperation by a plurality of axle keys 11 and keyway 22, be not easy to make the contacting point torsional deformation of impeller 20 and axis body 10, effectively prevent the damage of impeller 20, save ample resources and cost.
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 (3)
1. a vertical pump pump shaft, comprise axis body (10), described axis body (10) is arranged on the center hole (21) of impeller (20), it is characterized in that, the outside of described axis body (10) is provided with 4 ~ 12 axle keys (11), and described center hole (21) is provided with the keyway (22) cooperatively interacted with described axle key (11).
2. vertical pump pump shaft according to claim 1, is characterized in that, the quantity of described keyway (22) is consistent with the quantity of described axle key (11).
3. vertical pump pump shaft according to claim 1, is characterized in that, the quantity of described axle key (11) is 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202688144U CN203321864U (en) | 2013-05-17 | 2013-05-17 | Pump shaft of vertical pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202688144U CN203321864U (en) | 2013-05-17 | 2013-05-17 | Pump shaft of vertical pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203321864U true CN203321864U (en) | 2013-12-04 |
Family
ID=49661219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202688144U Expired - Fee Related CN203321864U (en) | 2013-05-17 | 2013-05-17 | Pump shaft of vertical pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203321864U (en) |
-
2013
- 2013-05-17 CN CN2013202688144U patent/CN203321864U/en not_active Expired - Fee Related
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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: 20131204 Termination date: 20150517 |
|
| EXPY | Termination of patent right or utility model |