CN203867958U - Car cooling water pump - Google Patents
Car cooling water pump Download PDFInfo
- Publication number
- CN203867958U CN203867958U CN201420143327.XU CN201420143327U CN203867958U CN 203867958 U CN203867958 U CN 203867958U CN 201420143327 U CN201420143327 U CN 201420143327U CN 203867958 U CN203867958 U CN 203867958U
- Authority
- CN
- China
- Prior art keywords
- water pump
- mechanical seal
- cooling water
- ring
- seal
- 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
Links
- 239000000498 cooling water Substances 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 230000003068 static effect Effects 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 239000000110 cooling liquid Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005307 ferromagnetism Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011553 magnetic fluid Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000001338 self-assembly Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A car cooling water pump comprises a water pump impeller, a mechanical seal, an O-shaped ring, a shell body, a shaft-connected bearing and a sprocket, wherein the mechanical seal is a wheel shaft seal of the water pump impeller, steel rings are arranged on the outer sides of a static ring and a movable ring of the mechanical seal, and intervals among the steel rings, the static ring and the movable ring are filled with magnetic liquid. As the magnetic liquid is arranged on the outer side of the static ring and the movable ring of the mechanical seal for sealing, the sealing effect of the car cooling water pump is better. The specific pressure needed on a sealing surface of the mechanical seal is half that in the prior art.
Description
Technical field
The utility model relates to a kind of water pump, especially relates to automobile cooling water pump.
Background technique
Automobile cooling water pump is the power plant that drive cooling liquid, and auto pump maintainability directly has influence on the normal work of motor.Generally, the failure mode of auto pump is Seepage, and cooling water overflows from spillway hole by sealing.The water of seepage will penetrate into shaft connecting bearing inside gradually, corrodes the rolling element of bearing, and the even more serious consequence that finally causes motor to damage, so that the reliability of mechanical seal seems in auto pump is particularly important.Mechanical seal comprises 1. retainer 2. auxiliary seal ring 3. stationary ring 4. rotating ring 5. spring seat 6. bellows 7. spring 8. corrugated headers; The end face of rotating ring and the stationary ring friction pair that partners, rotating ring is pressed on stationary ring end face its end face by the pressure of liquid in closed chamber, and on two ring end faces, produces suitable specific pressure and keep liquid film as thin as a wafer of one deck and reach the object of sealing.Spring seat and bellows clamping element produce pressure, can make pump also not keeping end face laminating under operating condition, prevent cooling medium seepage.Seal element plays the gap of gap, rotating ring and the housing of stationary seal ring and bearing, simultaneously to the vibration of water pump, impacted buffer function.
Most of mechanical seal adopts slightly soft material to make surface of revolution, makes its spin friction on harder stationary face, and the general combination of auto pump mechanical seal is to utilize material with carbon element as stationary ring 3, and it is moved on pottery or silicon carbide rotating ring 4.This pairing material have good running-in ability, thermal conductivity and mechanical strength and without excessive to advantages such as thermogalvanic corrisions.Must between dynamic and static ring surface of contact, keep one deck fluid film, to play lubricated effect, the mode that adopts load on spring and fluid pressure to combine, can make to play between sealing surface good seal action.But face pressure is excessive, can affect between surface of contact and form fluid film, cause heat to increase and too early wearing and tearing.If face pressure is too low, the gap between surface of contact increases, and easily causes seepage.
Yet, the leakage of mechanical seal is nearly 80%～95%, because seal face friction pair causes, except keeping sealing surface accuracy of manufacturing, face pressure is the important parameter that is related to sealability and working life, and it is relevant with pressure medium with structural type, the spring size of sealing; In addition, mechanical seal self assembly process also has higher requirements; Sealing surface in mechanical seal will have certain specific pressure, just can make friction pair play effective seal action, in order to guarantee this specific pressure, requires pump shaft can not have too large axial movement value.Mechanical seal vibration is bigger than normal, finally causes mechanical seal unstable wear and loses sealing effect.
Auto pump, in design, manufacture and assembly process, fully be analyzed the source of vibration, to eliminate vibration source, improves the cavitation performance level of pumps design, avoids occurring the vibration that cavitation phenomenons causes water pump; According to the design speed of cooling water car pump impeller, rationally control its dynamic balancing size, make its smooth running; Each side takes into full account the rigidity of pump shaft from structure to material etc.; The precision that improves water pump bearing, by JB/T563-1997 < < rolling bearing water pump shaft connecting bearings > > standard, requires the radial internal clearance of shaft connecting bearing to be not more than 0.04mm.Mechanical seal is a kind of contact-type dynamic seal (packing) of axial-rotation, it is under the effect of flowing medium and elastic element, two seal faces perpendicular to shaft axis fit tightly, relatively rotate, thereby reach sealing effect, therefore require to want stressed even between two sealings.But unreasonable due to auto pump product specification, during pump shaft running, produces larger amount of deflection in mechanical seal installation place, make the discontinuity between sealing surface, causes sealing effect bad.
Summary of the invention
The purpose of this utility model is, the deficiency existing for prior art provides a kind of sealing configuration matching with existing machinery sealing.Can make the face pressure of mechanical seal reduce and sealability is better and working life is all longer, make cooling water car pump work more reliable, can not reveal cooling liquid.
Technical solutions of the utility model are: a kind of automobile cooling water pump, comprises water pump vane, mechanical seal, O shape circle, housing, shaft connecting bearing, toothed belt wheel; Mechanical seal is the wheel shaft sealing of water pump vane, it is characterized in that the stationary ring of mechanical seal and rotating ring outside are provided with steel loop, the gap-fill magnetic liquid between steel loop and stationary ring and rotating ring.The concrete certain ferromagnetism of steel loop itself, can have certain adhesive attraction to magnetic liquid; But further, especially in the inner side of steel loop, adhere to some fritter Nd-Fe-B permanent magnets for more powerful adhesion magnetic liquid.
The beneficial effects of the utility model: be provided with magnetic fluid sealing outside the stationary ring in mechanical seal and rotating ring, make the sealing effect of automobile cooling water pump better.At the sealing surface of mechanical seal, will have certain specific pressure to only have half of prior art, i.e. what in contact-type dynamic seal (packing), two seal faces perpendicular to shaft axis fitted tightly slightly poor, two sealings wants the slightly poor the utility model that all goes for of the stressed uniformity.Greatly extended the working life of automobile cooling water pump.
Accompanying drawing explanation
Fig. 1 is the utility model automobile cooling water pump embodiment's structural representation;
Fig. 2 is the utility model cooling water car pump packing structure embodiment's structural representation; Also be the structure for amplifying schematic diagram of Fig. 1 mechanical seal place.
Embodiment
Automobile cooling water pump as shown in Figure 1-2, comprises that 9. cooling water car pump impeller 10. mechanical seal 11.O shapes are enclosed 12. housing 13. shaft connecting bearing 14. toothed belt wheels; Mechanical seal also claims end face seal, has a pair of end face perpendicular to spin axis, and under the effect of this end face elastic force outside hydrodynamic pressure and compensation machinery, the cooperation and the other end that rely on auxiliary seal keep laminating, and relative sliding, thereby prevent fluid leaks.
In Fig. 2, mechanical seal comprises 1. retainer 2. auxiliary seal ring 3. stationary ring 4. rotating ring 5. spring seat 6. bellows 7. spring 8. corrugated headers; Separately at stationary ring and rotating ring outside, be provided with steel loop 3-1, the gap-fill magnetic liquid 3-2 between steel loop and stationary ring and rotating ring.Steel loop 3-1 is than the about 1-2mm of the outside diameter of stationary ring and rotating ring, and 1-2mm fills magnetic liquid in gap, fills the stretch sealing surface of mechanical seal of magnetic liquid.The material of steel loop 3-1 adopts carbon steel, utilizes the remanent magnetism absorption magnetic liquid (magnetic liquid is the nonvolatile liquid that is rich in suspension ferric oxide and ferrous oxide particle, has had mature technology) after permanent-magnetic field impact.
Steel loop inner side is 1.5mm with the gap in stationary ring and rotating ring outside.Especially in the inner side of steel loop, evenly adhere to several square millimeters of areas of some fritters but the thick Nd-Fe-B permanent magnet of 1mm for more powerful adhesion magnetic liquid.
Embodiment of the present utility model does not form restriction of the present utility model, and the product of any analog structure all will be seen it and whether fall into the protection domain that the utility model claim limits.
Claims (3)
1. an automobile cooling water pump, comprises water pump vane, mechanical seal, O shape circle, housing, shaft connecting bearing, toothed belt wheel; Mechanical seal is the wheel shaft sealing of water pump vane, it is characterized in that the stationary ring of mechanical seal and rotating ring outside are provided with steel loop, the gap-fill magnetic liquid between steel loop and stationary ring and rotating ring.
2. automobile cooling water pump according to claim 1, is characterized in that adhering in the inner side of steel loop some fritter Nd-Fe-B permanent magnets.
3. automobile cooling water pump according to claim 1 and 2, is characterized in that steel loop inner side and the gap in stationary ring and rotating ring outside are 1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420143327.XU CN203867958U (en) | 2014-03-27 | 2014-03-27 | Car cooling water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420143327.XU CN203867958U (en) | 2014-03-27 | 2014-03-27 | Car cooling water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203867958U true CN203867958U (en) | 2014-10-08 |
Family
ID=51648918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420143327.XU Expired - Lifetime CN203867958U (en) | 2014-03-27 | 2014-03-27 | Car cooling water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203867958U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989053A (en) * | 2017-04-28 | 2017-07-28 | 威隼汽车科技（宁波）有限公司 | A kind of auto pump |
-
2014
- 2014-03-27 CN CN201420143327.XU patent/CN203867958U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989053A (en) * | 2017-04-28 | 2017-07-28 | 威隼汽车科技（宁波）有限公司 | A kind of auto pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 224100 No. 108 Ming West Road, Dafeng District Economic and Technological Development Zone, Jiangsu, Yancheng City Patentee after: HANA INDUSTRIES CO.,LTD. Address before: 224100, No. 108, Ming Ming West Road, Dafeng Economic and Technological Development Zone, Jiangsu, Yancheng City Patentee before: DAFENG HANA INDUSTRIES Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20141008 |
|
| CX01 | Expiry of patent term |