CN204267311U - A kind of distributed submersible pump - Google Patents
A kind of distributed submersible pump Download PDFInfo
- Publication number
- CN204267311U CN204267311U CN201420729559.3U CN201420729559U CN204267311U CN 204267311 U CN204267311 U CN 204267311U CN 201420729559 U CN201420729559 U CN 201420729559U CN 204267311 U CN204267311 U CN 204267311U
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- China
- Prior art keywords
- keyway
- pump shaft
- keyways
- pump
- shaft
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- Expired - Fee Related
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Abstract
The utility model provides a kind of distributed submersible pump, comprises pump shaft, is provided with keyway on the surface of described pump shaft, and the quantity of described keyway is the multiple of 3; Described keyway is all positioned on the mutual shaft section do not overlapped; Remember that every 3 adjacent keyways are one group; 3 keyways in same group arrange clockwise or counterclockwise, and the keyway angular interval of adjacent 2 keyways is 120 °.Useful technique effect: the utility model can not only improve the pump shaft degree of unbalancedness problem that keyway causes, and can also reduce the unbalance mass, of pump shaft central plane, reduces pump shaft to the impact of rotor, reduces vibration.
Description
Technical field
The utility model belongs to strong pump equipment, is specifically related to a kind of distributed submersible pump.
Background technique
Submersible pump is usually speedily carried out rescue work for mine, construction, agricultural irrigation, municipal sewage treatment, urban and rural residents quote the fields such as water, according to drainage principle, submersible pump generally can be divided into: impeller pump, displacement pump and other type formula pump, wherein modal is impeller pump.General impeller pump forms by rotating (rotor) and static (stator) two-part, wherein rotating part also claims pump impeller by pump shaft and impeller 5(again) form, and pump shaft and impeller 5(pump impeller) between connected by keyway 2 and key block, specific practice is as follows: on actual pump shaft, usually have many keyways 2 vertically, so that the installation of multiple impeller 5.These keyways 2 have impact on the strength and stiffness of pump shaft 1, and make the flexural rigidity of pump shaft 1 in different deflected plane different; When pump shaft 1 rotates, the keyway 2 of these skewness makes again the discontinuity of pump shaft 1 in different deflected plane, affect the life-span of pump shaft 1 and bearing, and make pump shaft 1 central plane produce unbalance mass, cause rotor static unbalance, cause vibration noise, time serious, affect the motor be connected with pump shaft 1.Because submersible pump application area is relatively more extensive, so once disorderly closedown, not only can brings larger economic loss, even may cause major accident.Therefore, carry out improvement to the degree of unbalancedness of pump shaft 1 to be necessary.
In order to overcome keyway 2 to the eager intensity of pump shaft 1 and the impact in working life, existing solution adopts " parallel processing ", namely in up and down two planes parallel with pump shaft 1 central plane, keyway is processed, these keyways are interlaced to distribute, making in the quantity of same shaft section place keyway is 1, different axial positions, mutually every 180 degree between adjacent keyway.But, " parallel processing " is although keyway simple and fast in processing of arranging of mode, but still be difficult to balance the quality problems such as not caused by keyway, through a large amount of experiments, we find when the quantity of keyway 2 is the multiple of 3, and the mode of " parallel processing " lost efficacy, and the keyway 2 arranged by " parallel processing " mode still exists the problem of mass unbalance at the central plane of pump shaft 1, make solid of rotation produce static unbalance, and also cause the rotor be connected with pump shaft 1 uneven.Therefore rotor static unbalance when how to eliminate keyway quantity be the multiple of 3 is the difficult problem that person skilled faces.
Model utility content
For solving the deficiency existing for above-mentioned prior art, the utility model provides a kind of distributed submersible pump, can reduce the unbalance mass, of pump shaft 1 central plane, eliminates rotor unbalance phenomenon.
The utility model is that technical solution problem adopts following technological scheme:
A kind of distributed submersible pump, comprise pump shaft 1, be provided with keyway 2 on the surface of described pump shaft 1, the quantity of described keyway 2 is the multiple of 3; Described keyway 2 is all positioned on the mutual shaft section do not overlapped; Remember that every 3 adjacent keyways 2 are one group; 3 keyways 2 in same group arrange clockwise or counterclockwise, and the keyway angular interval α of adjacent 2 keyways 2 is 120 °.
Useful technique effect
The utility model can solve the problem of the central plane mass unbalance of the pump shaft 1 caused by keyway 2 being provided with the multiple that quantity is 3 on the surface of pump shaft 1, make pump shaft 1 in rotary course, reach dynamic balance, realize the state of solid of rotation relative equilibrium, thus guarantee the rotor be connected with pump shaft 1 reach balance, the working state of smooth running.Be embodied in following aspect:
1, arrangement mode of the present utility model can reach the geometry symmetry on keyway 2 arrangement, can not only reduce the unbalance mass, of pump shaft 1 central plane, also can reduce the impact of pump shaft 1 on rotor;
2, the utility model is particularly useful for large diving pump shaft, the pump shaft 1 caused due to static unbalance quality can be reduced vibrate, and reduce rotor fault---the compact submersible pump being vibrated initiation by pump shaft 1, because volume is little, the requirement of mechanical strength is low, keyway 2 is not so good as Large diving pump to the impact of pump shaft 1;
3, the utility model structure is simple, easy to process, and safe and reliable when using, and not only can make up with the deficiency of 180 degree, interval processing keyway method, can also directly use original process equipment to process by new layout structure, without the new cost dropped into.
Accompanying drawing explanation
Fig. 1 is plan view of the present utility model.
Fig. 2 is the using state schematic diagram of Fig. 1.
Fig. 3 is 3 keyways 2 simple views by arrangement counterclockwise on pump shaft 1.
Fig. 4 is the A-A sectional view of Fig. 3.
Number in the figure: pump shaft 1, keyway 2, impeller 5, first keyway 21, second keyway 22, key-groove 23.
Embodiment
Now be described with reference to the accompanying drawings structural feature of the present utility model.
See Fig. 1, a kind of distributed submersible pump, comprises pump shaft 1, is provided with keyway 2 on the surface of described pump shaft 1, and the quantity of described keyway 2 is the multiple of 3; Described keyway 2 is all positioned on the mutual shaft section do not overlapped; Remember that every 3 adjacent keyways 2 are one group; 3 keyways 2 in same group arrange clockwise or counterclockwise, and the keyway angular interval of adjacent 2 keyways 2 is 120 °.
See Fig. 1, furtherly, the spacing L of the shaft section at 3 keyway 2 places in same group is equal.
See Fig. 2, it is using state schematic diagram of the present utility model.
Embodiment 1, furtherly, is provided with pump shaft 1 and is provided with 6 keyways 2; 3 keyways 2 being positioned at pump shaft 1 one end are first group, are positioned at 3 keyways 2 of first group along arranged counterclockwise, and the keyway angular interval at 120 °, interval successively; 3 keyways 2 being positioned at pump shaft 1 the other end are second group, are positioned at 3 keyways 2 of second group along arranged counterclockwise, and the keyway angular interval at 120 °, interval successively.
Fig. 3 is 3 keyways 2 simple views by arrangement counterclockwise on pump shaft 1.Fig. 4 is the A-A sectional view of Fig. 3.If three keyways 2 in Fig. 3 are designated as the first keyway 21, second keyway 22 and key-groove 23 successively, wherein, keyway angular interval α, the keyway angular interval α between the second keyway 22 and key-groove 23 and the keyway angular interval α between key-groove 23 and the first keyway 21 between first keyway 21 and the second keyway 22 are 120 °, in addition, the shaft section at the first keyway 21 place is equal with the spacing L of the shaft section at key-groove 23 place with the shaft section at the second keyway 23 place with the spacing L of the shaft section at the second keyway 22 place.
During processing the utility model, first circumferential surface first on pump shaft 1 processes first keyway, on second circumferential surface axially gone up, process second keyway subsequently, and guarantee that the angle of first keyway and second keyway is 120 degree.Afterwards, continue processing the 3rd keyway on the 3rd circumferential surface in axial direction, and guarantee that the angle of second keyway and the 3rd keyway is 120 degree; When the upper keyway quantity of pump shaft (1) is 6, then 6 keyways are divided into 2 groups, often organize and all process by above-mentioned mode.When the upper keyway quantity of pump shaft (1) is 9, then 9 sections of 9 corresponding pump shafts of keyway difference, and be divided into 3 groups, process equally in a manner described.By that analogy, the k round numbers when keyway quantity is 12,15...3k on pump shaft, then keyway is divided into k group, and often the angle of interior two the adjacent keyways of group is 120 degree.
Claims (3)
1. a distributed submersible pump, comprises pump shaft (1), is provided with keyway (2), it is characterized in that on the surface of described pump shaft (1): the quantity of the keyway (2) on described pump shaft (1) is the multiple of 3; And described keyway (2) is all positioned on the mutual shaft section do not overlapped; Remember that every 3 adjacent keyways (2) are one group; 3 keyways (2) in same group arrange clockwise or counterclockwise, and the keyway angular interval of adjacent 2 keyways (2) is 120 °.
2. a kind of distributed submersible pump as claimed in claim 1, is characterized in that: the spacing of the shaft section at 3 keyway (2) places in same group is equal.
3. a kind of distributed submersible pump as claimed in claim 1, is characterized in that: be provided with pump shaft (1) and be provided with 6 keyways (2); 3 keyways (2) being positioned at pump shaft (1) one end are first group, are positioned at 3 keyways (2) of first group along arranged counterclockwise, and the keyway angular interval at 120 °, interval successively; 3 keyways (2) being positioned at pump shaft (1) the other end are second group, are positioned at 3 keyways (2) of second group along arranged counterclockwise, and the keyway angular interval at 120 °, interval successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420729559.3U CN204267311U (en) | 2014-11-29 | 2014-11-29 | A kind of distributed submersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420729559.3U CN204267311U (en) | 2014-11-29 | 2014-11-29 | A kind of distributed submersible pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204267311U true CN204267311U (en) | 2015-04-15 |
Family
ID=52802182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420729559.3U Expired - Fee Related CN204267311U (en) | 2014-11-29 | 2014-11-29 | A kind of distributed submersible pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204267311U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594165A (en) * | 2019-10-23 | 2019-12-20 | 合肥恒大江海泵业股份有限公司 | Submersible electric pump |
| WO2023212287A1 (en) * | 2022-04-29 | 2023-11-02 | Schlumberger Technology Corporation | System and method for vibration control |
-
2014
- 2014-11-29 CN CN201420729559.3U patent/CN204267311U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594165A (en) * | 2019-10-23 | 2019-12-20 | 合肥恒大江海泵业股份有限公司 | Submersible electric pump |
| WO2023212287A1 (en) * | 2022-04-29 | 2023-11-02 | Schlumberger Technology Corporation | System and method for vibration control |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20171129 |