CN208651195U - A kind of micropump - Google Patents
A kind of micropump Download PDFInfo
- Publication number
- CN208651195U CN208651195U CN201821349332.0U CN201821349332U CN208651195U CN 208651195 U CN208651195 U CN 208651195U CN 201821349332 U CN201821349332 U CN 201821349332U CN 208651195 U CN208651195 U CN 208651195U
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- Prior art keywords
- pump
- rotor
- connecting shaft
- axle sleeve
- shaft
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- 238000000926 separation method Methods 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 238000005299 abrasion Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 35
- 239000000919 ceramic Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000013461 design Methods 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 description 8
- 230000008901 benefit Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 206010017389 Frotteurism Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001095 motoneuron effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
The utility model provides a kind of micropump.Including connecting shaft, rotor axle sleeve, pump head, pump case, rotor, driving motor, separation sleeve, sealing ring, gasket；Pump head closes in the opening of pump case with upper shield is isolated；Cavity in pump case is separated into pump inner cavity and pump separate cavities by separation sleeve；It is sealed by a seal ring between pump head and pump separate cavities；Connecting shaft is interspersed in rotor axle sleeve, and connecting shaft both ends are fixedly connected with pump head, separation sleeve respectively；Rotor axle sleeve is embedded in rotor.Connecting shaft includes first shaft shoulder, axle body and second shaft shoulder；First shaft shoulder and second shaft shoulder are set to axle body two sides；First shaft shoulder and the second shaft shoulder outer diameter are identical, and axle body outer diameter is 0.65~0.95 times of first shaft shoulder or the second shaft shoulder outer diameter；Axle body length is 0.5~0.8 times of rotor axle sleeve length.The design of the utility model structure is simple, and easy to assembly, failure rate is low, long service life；The structure of connecting shaft ladder shaft type designs, and can be reduced the noise of the abrasion and generation between connecting shaft and rotor axle sleeve.
Description
Technical field
The utility model relates to micropump manufacturing technology fields, and in particular to a kind of micropump.
Background technique
Micropump generally comprises pump head, rotor axle sleeve, rotor, driving motor, pump case, connecting shaft, pump separate cavities, sealing
Circle, gasket etc..Connecting shaft is an important component indispensable in micropump, and rotor axle sleeve can under driving motor effect
Around connecting shaft high speed rotation.
For micropump during real-world operation, connecting shaft and rotor axle sleeve are usually in Frotteurism, connecting shaft and rotor
Axle sleeve long-time pivoting friction, frictional contact surface is bigger, generates the bigger of noise, but also will increase Motor torque, is easy
Existing stuck phenomenon, and then influence the service life of micropump.
In conclusion being badly in need of a kind of micropump to solve problems of the prior art.
Utility model content
The utility model aim is to provide a kind of micropump, and to solve, micropump service life is low, connecting shaft abrasion is big
The problems such as.
To achieve the above object, the utility model provides a kind of micropump, including connecting shaft, rotor axle sleeve, pump head, pump
Shell, rotor, driving motor, separation sleeve, sealing ring, gasket；The pump head closes in the opening of pump case with upper shield is isolated；Every
From being placed in pump case, the cavity in pump case is separated into pump inner cavity and pump separate cavities by separation sleeve；Rotor is placed in pump inner cavity
In；It is sealed by a seal ring between pump head and pump separate cavities；Connecting shaft is interspersed in rotor axle sleeve, connecting shaft both ends difference
It is fixedly connected with pump head, separation sleeve；Rotor axle sleeve is embedded in rotor.
The connecting shaft includes first shaft shoulder, axle body and second shaft shoulder；First shaft shoulder and second shaft shoulder are set to axle body
Two sides；First shaft shoulder and the second shaft shoulder outer diameter are identical, axle body outer diameter be first shaft shoulder or the second shaft shoulder outer diameter 0.65~
0.95 times；Axle body length is 0.5~0.8 times of rotor axle sleeve length.
Preferably, the connecting shaft is ceramic shaft or stainless steel shaft.
Preferably, the pump head is equipped with inlet and outlet；Water inlet is arranged at the top of pump head, and water outlet setting is pumping
Head bottom side, the flow direction of inlet and outlet are mutually perpendicular to.
Preferably, the rotor includes impeller and ontology, and impeller and this body by integral forming, water introduce impeller from water inlet
Runner in, wheel rotation by water from water outlet be discharged.
Preferably, the driving motor is in pump separate cavities, driving rotor rotation.
Preferably, gasket is equipped between the rotor axle sleeve and pump head, gasket covers in connecting shaft, to reduce armature spindle
The abrasion of rotor axle sleeve and pump head when set rotation.
Using the technical solution of the utility model, have the advantages that
(1) a kind of micropump of the utility model, including connecting shaft, rotor axle sleeve, pump head, pump case, rotor, driving electricity
Machine, pump separate cavities, sealing ring, gasket, pump head lid close in the opening of pump case, and connecting shaft is interspersed in rotor axle sleeve, both ends
It is fixedly connected respectively with pump head, separation sleeve.Structure design is simple, and easy to assembly, failure rate is low, long service life.
(2) in the utility model, the structure of connecting shaft ladder shaft type is designed, so that the contact surface of connecting shaft and rotor axle sleeve
Product reduces, and contact area is smaller, and the force of rolling friction between connecting shaft and rotor axle sleeve is smaller, reduces connecting shaft and armature spindle
The abrasion of set extends the service life of connecting shaft and rotor axle sleeve, can reduce connecting shaft and rotor axle sleeve because friction generates
3~10 decibels of noise.
(3) in the utility model, connecting shaft and rotor axle sleeve inevitably exist coaxial in processing and assembling process
Error is spent, coaxiality error is bigger, and rotor axle sleeve more has some setbacks around connecting shaft rotation, or even stuck phenomenon occurs, connects
Axis and rotor axle sleeve contact area are smaller, and coaxiality error encloses the influence of pivoting just smaller, the company of improving to rotor axle sleeve
Spindle and the stuck problem of rotor axle sleeve, stuck problem are reduced to 5/10000ths by 5/1000ths, reduce micropump and break down
Probability.
Other than objects, features and advantages described above, there are also other purposes, feature and excellent for the utility model
Point.Below with reference to figure, the utility model is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide a further understanding of the present invention, the utility model
Illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.In attached drawing
In:
Fig. 1 is micropump the schematic diagram of the section structure；
Fig. 2 is connecting axle structure schematic diagram.
Wherein, 1, connecting shaft, 1.1, first shaft shoulder, 1.2, axle body, 1.3, second shaft shoulder, 2, rotor axle sleeve, 3, pump head,
3.1, water inlet, 3.2, water outlet, 4, pump case, 4.1, pump inner cavity, 4.2, pump separate cavities, 5, rotor, 5.1, impeller, 5.2, sheet
Body, 6, driving motor, 7, separation sleeve, 8, sealing ring, 9, gasket.
Specific embodiment
The embodiments of the present invention are described in detail below in conjunction with attached drawing, but the utility model can be according to power
Benefit requires to limit and the multitude of different ways of covering is implemented.
Embodiment 1:
Referring to Fig. 1, Fig. 2, a kind of micropump connecting shaft 1, rotor axle sleeve 2, pump head 3, pump case 4, rotor 5, driving motor
6, separation sleeve 7, sealing ring 8, gasket 9；Pump head 3 and the lid of separation sleeve 7 close in the opening of pump case 4；Separation sleeve 7 is placed in pump case
In 4, the cavity in pump case 4 is separated into pump inner cavity 4.1 and pump separate cavities 4.2 by separation sleeve 7；Rotor 5 is placed in pump inner cavity 4.1
In；Connecting shaft 1 is interspersed in rotor axle sleeve 2, and 1 both ends of connecting shaft are fixedly connected with pump head 3, separation sleeve 7 respectively；Rotor axle sleeve 2
It is embedded in rotor 5.
The connecting shaft 1 includes first shaft shoulder 1.1, axle body 1.2 and second shaft shoulder 1.3；First shaft shoulder 1.1 and second
The shaft shoulder 1.3 is set to 1.2 two sides of axle body.First shaft shoulder 1.1 is identical with length with second shaft shoulder, 1.3 outer diameter, 1.2 outer diameter of axle body
It is 0.65~0.95 times of 1.3 outer diameter of first shaft shoulder 1.1 or second shaft shoulder, i.e. axle body 1.1 does not contact always with rotor axle sleeve 2；
1.2 length of axle body is 0.5~0.8 times of 2 length of rotor axle sleeve.
In pump separate cavities 4.2, driving rotor 5 rotates the driving motor 6.Pass through between pump head 3 and pump separate cavities 4.2
Sealing ring 8 is sealed；Guarantee that isolation pump chamber 4.2 is in sealing state, prevents outside liquid from entering isolation pump chamber 4.2, protection
Driving motor 6 is not damaged.
The connecting shaft 1 is ceramic shaft or stainless steel shaft, and ceramics and stainless steel material all have high tenacity, high-flexural strength
And high-wearing feature.The pump head 3 is equipped with water inlet 3.1 and water outlet 3.2, and the setting of water inlet 3.1 is in 3 top of pump head, water outlet
In 3 bottom side of pump head, the flow direction of water inlet 3.1 and water outlet 3.2 is mutually perpendicular to for 3.2 settings.The rotor 5 includes impeller
5.1 and ontology 5.2, impeller 5.1 and ontology 5.2 are integrally formed, and water is from the runner that water inlet 3.1 is introduced into impeller 5.1, impeller
Water is discharged from water outlet 3.2 for 5.1 rotations.
Between the rotor axle sleeve 2 and pump head 3 be equipped with gasket 9,9 sets of gasket in connecting shaft 1, to reduce rotor axle sleeve
The abrasion of rotor axle sleeve 2 and pump head 3 when 2 rotation.
A kind of above-mentioned micropump working principle: water or other media from the runner that the water inlet of pump head is introduced into impeller,
Impeller passes through rotor axle sleeve around connecting shaft high speed rotation under the action of driving motor, and impeller high speed rotation can generate huge
Centrifugal force, under the influence of centrifugal force, the water taken turns in runner are thrown toward surrounding, flow out from the water outlet of pump head.Impeller constantly revolves
Turn, then can continuously absorb water, press water, water can be raised continuously from lower to eminence or a distant place.
A kind of above-mentioned micropump, including connecting shaft, rotor axle sleeve, pump head, pump case, rotor, driving motor, pump isolation
Chamber, sealing ring, gasket, pump head lid close in the opening of pump case, connecting shaft is interspersed in rotor axle sleeve, both ends respectively with pump
Head, separation sleeve are fixedly connected.Structure design is simple, and easy to assembly, failure rate is low, long service life.
A kind of above-mentioned micropump, the structure design of connecting shaft ladder shaft type, so that the contact surface of connecting shaft and rotor axle sleeve
Product reduces, and contact area is smaller, and the force of rolling friction between connecting shaft and rotor axle sleeve is smaller, reduces connecting shaft and armature spindle
The abrasion of set extends the service life of connecting shaft and rotor axle sleeve, can reduce connecting shaft and rotor axle sleeve because friction generates
3~10 decibels of noise.
A kind of above-mentioned micropump, connecting shaft and rotor axle sleeve inevitably exist coaxial in processing and assembling process
Error is spent, coaxiality error is bigger, and rotor axle sleeve more has some setbacks around connecting shaft rotation, or even stuck phenomenon occurs, connects
Axis and rotor axle sleeve contact area are smaller, and coaxiality error encloses the influence of pivoting just smaller, the company of improving to rotor axle sleeve
Spindle and the stuck problem of rotor axle sleeve, stuck problem are reduced to 5/10000ths by 5/1000ths, reduce micropump and break down
Probability.
It is preferred that axle body length is 0.8 times of connecting shaft of rotor axle sleeve length, as A connecting shaft, noise test examination is carried out
It tests.Axle body outer diameter is less than shaft shoulder outer diameter, and A connecting shaft is contacted with rotor axle sleeve about 20%.
It is preferred that axle body length is 0.5 times of connecting shaft of rotor axle sleeve length, as B connecting shaft, noise test examination is carried out
It tests.Axle body outer diameter is less than shaft shoulder outer diameter, and B connecting shaft is contacted with rotor axle sleeve about 50%.
Generic connectivity axis is chosen, as C connecting shaft, carries out noise test test.Generic connectivity axis is pole structure, and C connects
Spindle is contacted with rotor axle sleeve 100%.
Experimental enviroment: 27 DEG C of temperature, the silent room of humidity 70%.
Test method:
(1) external 12V voltage, water outlet standard-sized sheet start micropump.
(2) size of ambient noise first is measured with decibel instrument, environmental noise should be lower than 40db；Decibel instrument is placed in micropump again
It is tested 1 time at the 0CM of top.
(3) every kind of connecting shaft acquires 10 groups of data, log, and calculates average value.
Test result is as shown in the table:
As seen from the experiment, in the environment of environmental noise 29.5dB, when miniature pump work, what A connecting shaft generated makes an uproar
Sound is 38.96dB, and the noise that B connecting shaft generates is 39.05dB, and the noise that C connecting shaft generates is 43.92dB.
The noise level difference of A connecting shaft and B connecting shaft is 0.09dB, the noise level difference of A connecting shaft and C connecting shaft
For 4.96dB, the noise level difference of B connecting shaft and C connecting shaft is 4.87dB.
Test result shows the noise generated using the micropump of A connecting shaft or B connecting shaft, than using C connecting shaft
Micropump generate noise, low 4.87dB or more.And the noise level difference very little of A connecting shaft and B connecting shaft, it almost can be with
Ignore, that is to say, that suitable using A connecting shaft or B connecting shaft noise reduction effect.
So objectively saying, uses axle body length for 0.5~0.8 times of rotor axle sleeve length of connecting shaft, can reach good
Good noise reduction effect.An important reason for noise is generated when miniature pump work, in that connecting shaft fortune opposite with rotor axle sleeve
Sliding friction is produced when dynamic, noise is smaller, in turn that is to say, clear frictional force is smaller.To also demonstrate setting for connecting shaft
Meter, can reduce the abrasion of connecting shaft and rotor axle sleeve, the service life of couple-extended shaft and rotor axle sleeve.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (6)
1. a kind of micropump, which is characterized in that including connecting shaft (1), rotor axle sleeve (2), pump head (3), pump case (4), rotor
(5), driving motor (6), separation sleeve (7), sealing ring (8), gasket (9)；The pump head (3) and separation sleeve (7) lid close outer in pump
In the opening of shell (4)；Separation sleeve (7) is placed in pump case (4), and the cavity in pump case (4) is separated into pump by separation sleeve (7)
Chamber (4.1) and pump separate cavities (4.2)；Rotor (5) is placed in pump inner cavity (4.1)；Lead between pump head (3) and pump separate cavities (4.2)
Sealing ring (8) is crossed to be sealed；Connecting shaft (1) is interspersed in rotor axle sleeve (2), connecting shaft (1) both ends respectively with pump head (3),
Separation sleeve (7) is fixedly connected；Rotor axle sleeve (2) is embedded in rotor (5)；
The connecting shaft (1) includes first shaft shoulder (1.1), axle body (1.2) and second shaft shoulder (1.3)；First shaft shoulder (1.1)
Axle body (1.2) two sides are set to second shaft shoulder (1.3)；First shaft shoulder (1.1) is identical with second shaft shoulder (1.3) outer diameter, axis
Body (1.2) outer diameter is 0.65~0.95 times of first shaft shoulder (1.1) or second shaft shoulder (1.3) outer diameter；Axle body (1.2) length is to turn
0.5~0.8 times of sub- axle sleeve (2) length.
2. a kind of micropump according to claim 1, which is characterized in that the connecting shaft (1) is ceramic shaft or stainless steel
Axis.
3. a kind of micropump according to claim 1, which is characterized in that the pump head (3) is equipped with water inlet (3.1) and goes out
The mouth of a river (3.2)；Water inlet (3.1) setting is at the top of pump head (3), and water outlet (3.2) setting is in pump head (3) bottom side, water inlet
The flow direction of mouth (3.1) and water outlet (3.2) is mutually perpendicular to.
4. a kind of micropump according to claim 3, which is characterized in that the rotor (5) includes impeller (5.1) and ontology
(5.2), impeller (5.1) and ontology (5.2) are integrally formed, and water is introduced into the runner of impeller (5.1) from water inlet (3.1), leaf
It takes turns (5.1) rotation and water is discharged from water outlet (3.2).
5. a kind of micropump according to claim 1, which is characterized in that the driving motor (6) is in pump separate cavities (4.2)
It is interior, driving rotor (5) rotation.
6. a kind of micropump according to claim 1, which is characterized in that set between the rotor axle sleeve (2) and pump head (3)
Have gasket (9), gasket (9) covers on connecting shaft (1), rotor axle sleeve (2) and pump head when reducing rotor axle sleeve (2) rotation
(3) abrasion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821349332.0U CN208651195U (en) | 2018-08-21 | 2018-08-21 | A kind of micropump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821349332.0U CN208651195U (en) | 2018-08-21 | 2018-08-21 | A kind of micropump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208651195U true CN208651195U (en) | 2019-03-26 |
Family
ID=65790710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821349332.0U Active CN208651195U (en) | 2018-08-21 | 2018-08-21 | A kind of micropump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208651195U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843586A (en) * | 2018-08-21 | 2018-11-20 | 长沙多浦乐泵业科技有限公司 | A kind of micropump |
-
2018
- 2018-08-21 CN CN201821349332.0U patent/CN208651195U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843586A (en) * | 2018-08-21 | 2018-11-20 | 长沙多浦乐泵业科技有限公司 | A kind of micropump |
| CN108843586B (en) * | 2018-08-21 | 2024-03-12 | 长沙多浦乐泵业科技有限公司 | Micro pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: a micro pump Effective date of registration: 20220831 Granted publication date: 20190326 Pledgee: Bank of Changsha Co.,Ltd. Jincheng sub branch Pledgor: CHANGSHA TOPSFLO PUMP TECHNOLOGY CO.,LTD. Registration number: Y2022430000077 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20190326 Pledgee: Bank of Changsha Co.,Ltd. Jincheng sub branch Pledgor: CHANGSHA TOPSFLO PUMP TECHNOLOGY CO.,LTD. Registration number: Y2022430000077 |