CN203230620U - Friction proofing device of centrifugal electric pump - Google Patents
Friction proofing device of centrifugal electric pump Download PDFInfo
- Publication number
- CN203230620U CN203230620U CN 201320212119 CN201320212119U CN203230620U CN 203230620 U CN203230620 U CN 203230620U CN 201320212119 CN201320212119 CN 201320212119 CN 201320212119 U CN201320212119 U CN 201320212119U CN 203230620 U CN203230620 U CN 203230620U
- Authority
- CN
- China
- Prior art keywords
- impeller
- water pump
- shaft
- axis hole
- face
- 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
Links
Images
Abstract
The utility model relates to a friction proofing device of a centrifugal electric pump. The friction proofing device comprises a pump housing, a pump front end cover, a pump rear end cover, an impeller shaft and an impeller. A shaft hole of a impeller housing is sleeved on the impeller shaft, so that the impeller housing is mounted in the pump housing. The contact face of the end face of the shaft hole of the impeller housing and a shaft supporting structure of the pump front end cover is provided with an impeller retainer ring, so that friction between the same is avoided, and service life of the electric pump is prolonged. Flow channels used for water circulating are formed on the inner wall of the shaft hole of the impeller housing and the end face of the shaft hole of the impeller housing. When water flows from a high-pressure area to a low-pressure area along the flow channels, impurities are discharged with the water through the flow channels, so that normal operation of the electric pump is guaranteed; the water flows via the flow channels and forms a liquid film between the end face of the shaft hole of the impeller housing and the impeller retainer ring, so that friction between the same is reduced.
Description
Technical field
The utility model relates to automobile cooling system, is specifically related to a kind of antifriction device of the centrifugal electric water pump for cooling system.
Background technique
The centrifugal electric water pump that is used for automobile cooling system, when impeller rotates at a high speed, not only can rub between impeller axis hole and the impeller shaft, also can produce friction between impeller housing axis hole end face and the water pump front cover, the friction at this two place can cause impeller housing heavy wear, and electric water pump abnormal sound sound is big, even stuck so that the motor damage; Be easy to assemble impurity and sediments between the fitting surface of impeller housing axis hole and impeller shaft simultaneously.
Summary of the invention
The purpose of this utility model is exactly at above-mentioned defective, and a kind of antifriction device of centrifugal electric water pump is provided, and can antifrictionly also can get rid of the impurity in the water pump.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of antifriction device of centrifugal electric water pump is provided, comprises water pump cover, water pump front cover, water pump rear end cover, impeller shaft and impeller; The axis hole of impeller housing is nested with on impeller shaft, and impeller housing is installed in the water pump cover; The surface of contact place of described impeller housing axis hole end face and water pump front cover axle support structure is provided with the impeller back-up ring; The inwall of described impeller housing axis hole and impeller housing axis hole end face are opened the guiding gutter that has the circulation of supplying water, and the guiding gutter of described shaft hole inner wall is communicated with the guiding gutter of axis hole end face.
Described impeller back-up ring is fixed on the confined planes on described impeller shaft top.
The surface of contact of described impeller back-up ring and described impeller shaft is non-disc.
What described impeller back-up ring adopted is the impeller back-up ring that silicon carbide is made.
The utility model compared with prior art, beneficial effect is: the impeller back-up ring make impeller housing axis hole end face when electric water pump is worked and on the water pump front cover the axle support structure disengage, avoided the friction between the two, prolonged the working life of electric water pump; Simultaneously have guiding gutter at impeller housing shaft hole inner wall and impeller housing axis hole end, when one flows to low pressure area along guiding gutter from the zone of high pressure when water, impurity is also discharged through guiding gutter thereupon, thereby guaranteed the proper functioning of electric water pump, its two water forms liquid film through guiding gutter between impeller housing axis hole end face and impeller back-up ring, reduced the friction between the two, and the impeller back-up ring that adopts silicon carbide material to make is more wear-resisting, liquid also can play the effect of lubricated impeller housing axis hole and impeller shaft friction pair in the guiding gutter, thereby has prolonged the working life of electric water pump.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is structure sectional view of the present utility model;
Fig. 2 is the assembling schematic representation of the utility model impeller back-up ring and impeller shaft;
Fig. 3 convinces the chute schematic representation by patient analysis for the utility model impeller housing axis hole end face;
Fig. 4 convinces the schematic representation of chute by patient analysis for the utility model impeller housing shaft hole inner wall.
Embodiment
The antifriction device of centrifugal electric water pump of the present utility model, comprise water pump rear end cover 1 as shown in Figure 1, control panel 3, water pump cover 4, muff 7, impeller shaft 8, damping sheath 9, impeller housing 11, impeller (being formed by impeller cover 12 and blade 15), impeller back-up ring 13, water pump front cover 14, motor.
Motor stator 5, water pump cover 4, impeller shaft 8 and bearing housing 7 adopt injection molding way to integrate and form the water pump cover assembly, both guaranteed the sealing of motor stator 5, have solved the waterproof problem of motor stator 5 again; Control panel 3 is fixed on water pump cover 4 belows by the bayonet arrangement of water pump cover inside.
Rotor 10 and impeller housing 11 adopt injection molding way to integrate, and have solved sealing and the waterproof problem of rotor 10 equally; Impeller cover 12 is welded on the blade 15 on the impeller housing 4 by welding manner, and impeller cover 12 and blade 15 have been formed impeller, and rotor 10, impeller housing 11, impeller (impeller cover 12 and blade 15) have been formed the impeller assembly.
Impeller housing 11 has the axis hole 11.1 that is nested with on impeller shaft 8, and axis hole 11.1 and impeller shaft 8 Spielpassung are installed in the water pump cover 4 impeller housing 11, thereby make the impeller assembly be installed in the water pump cover assembly.
Water pump front cover 14 surrounds with water pump cover 4 and is formed with pump chamber, and water pump front cover 14 is provided with water intake and the water outlet (not shown) that is communicated with pump chamber.
Water pump front cover 14 and water pump rear end cover 1 are pressed on O-ring seals I, O-ring seals II respectively on the surface of contact of water pump cover 4 and water pump front cover 14 and water pump rear end cover 1, by fastening piece water pump front cover and water pump rear end cover and water pump cover are fixed then, formed a complete electric water pump; Consider installation environment and the damping requirement of electric water pump, put the damping sheath 9 of a rubber material at pump housing middle part.
When electric water pump is worked, because the mutual electromagnetic effect between motor stator and rotor, on the one hand, to make impeller housing axis hole end face 11.2 inconsistent with axle support structure 2 front-end faces 2.1 of water pump front cover 14, and impeller housing 4 rotation at a high speed, this will cause the surface of contact heavy wear of impeller housing axis hole end face 11.2 and water pump front cover axle support structure 2 soon, and on the other hand, impeller cover 12 also can collide with water pump front cover 14.For preventing the generation of this situation, between the surface of contact of impeller housing axis hole end face 11.2 and water pump front cover axle support structure 2, be provided with impeller back-up ring 13, impeller back-up ring 13 separates water pump cover axis hole end face and water pump front cover axle support structure, thereby avoided the phase mutual friction of the two, simultaneously also impeller cover 12 is played position-limiting action, avoid the collision of impeller cover 12 and water pump front cover 14.As shown in Figure 2, simultaneously have confined planes 8.1 at impeller shaft 8, be nested with at the impeller back-up ring 13 on the impeller shaft 8 and be fixed on this confined planes 8.1, thereby fixedly the impeller back-up ring 13, and the surface of contact of impeller back-up ring and impeller shaft is non-disc, prevent the rotation of impeller back-up ring 13, because the impeller back-up ring does not rotate, also can not cause the wearing and tearing between impeller back-up ring and the water pump front cover axle support structure.
Shown in Fig. 3,4, the utility model has the guiding gutter 6,16 that supplies water and circulate at axis hole 11.1 inwalls and the impeller housing axis hole end face 11.2 of impeller housing, and the guiding gutter 6 of shaft hole inner wall is communicated with the guiding gutter 16 of axis hole end face.When impeller rotates at a high speed, its axial pressure is little, the pressure at impeller edge is big, make a spot of water go into the chamber of water pump cover and impeller housing formation from the impeller marginal flow, because pressure reduction, these leakage fluids are known from experience downward along chamber, move up along guiding gutter 6 then, flow back to again finally by the guiding gutter 16 of impeller housing axis hole end face 11.2 and participate in circulation between impeller again.In this process, the impurity between impeller housing and water pump cover, impeller shaft and the impeller housing axis hole is also discharged through guiding gutter.
When electric water pump is worked, though impeller back-up ring 13 has avoided impeller housing axis hole end face 11.2 to run into the axle support structure 2 and cause hard friction of water pump front cover 14, at a high speed the impeller housing 11 of rotation also can and impeller back-up ring 13 between produce and rub.But because axis hole 11.1 inwalls of impeller housing and impeller housing axis hole end face 11.2 all have the guiding gutter 6,16 of the circulation of supplying water, the water that flows out from guiding gutter can generate water membrane between impeller housing axis hole end face 11.2 and impeller back-up ring 13 end faces, reduced the friction between impeller housing axis hole end face 11.2 and the impeller back-up ring 13, and the impeller back-up ring 13 that adopts silicon carbide material to make is more wear-resisting.Liquid plays the effect of lubricating impeller housing axis hole 11.1 and impeller shaft 8 friction pairs in the guiding gutter 6 simultaneously, has also reduced the friction between impeller housing axis hole and the impeller shaft.
By reference to the accompanying drawings embodiment of the present utility model is described above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; rather than it is restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away under the scope situation that the utility model aim and claim protect, also can make a lot of forms, these all belong within the protection domain of the present utility model.
Claims (4)
1. the antifriction device of a centrifugal electric water pump comprises water pump cover, water pump front cover, water pump rear end cover, impeller shaft and impeller; The axis hole of impeller housing is nested with on impeller shaft, and impeller housing is installed in the water pump cover; It is characterized in that the surface of contact place of described impeller housing axis hole end face and water pump front cover axle support structure is provided with the impeller back-up ring; The inwall of described impeller housing axis hole and impeller housing axis hole end face have the guiding gutter of the circulation of supplying water, and the guiding gutter of described shaft hole inner wall is communicated with the guiding gutter of axis hole end face.
2. the antifriction device of centrifugal electric water pump according to claim 1 is characterized in that, described impeller back-up ring is fixed on the confined planes on described impeller shaft top.
3. the antifriction device of centrifugal electric water pump according to claim 2 is characterized in that, the surface of contact of described impeller back-up ring and described impeller shaft is non-disc.
4. the antifriction device of centrifugal electric water pump according to claim 2 is characterized in that, what described impeller back-up ring adopted is the impeller back-up ring that silicon carbide is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320212119 CN203230620U (en) | 2013-04-24 | 2013-04-24 | Friction proofing device of centrifugal electric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320212119 CN203230620U (en) | 2013-04-24 | 2013-04-24 | Friction proofing device of centrifugal electric pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203230620U true CN203230620U (en) | 2013-10-09 |
Family
ID=49286749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320212119 Expired - Fee Related CN203230620U (en) | 2013-04-24 | 2013-04-24 | Friction proofing device of centrifugal electric pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203230620U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678976A (en) * | 2018-06-25 | 2018-10-19 | 宁波富佳实业有限公司 | A kind of small-sized dry and wet two-purpose dust collector electric fan |
| CN109114047A (en) * | 2018-10-31 | 2019-01-01 | 芜湖飞龙汽车电子技术研究院有限公司 | A kind of antidetonation, backflow electronic water pump for automobile |
| CN109209986A (en) * | 2018-10-31 | 2019-01-15 | 芜湖飞龙汽车电子技术研究院有限公司 | A kind of vane rotor of electronic water pump for automobile |
-
2013
- 2013-04-24 CN CN 201320212119 patent/CN203230620U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678976A (en) * | 2018-06-25 | 2018-10-19 | 宁波富佳实业有限公司 | A kind of small-sized dry and wet two-purpose dust collector electric fan |
| CN109114047A (en) * | 2018-10-31 | 2019-01-01 | 芜湖飞龙汽车电子技术研究院有限公司 | A kind of antidetonation, backflow electronic water pump for automobile |
| CN109209986A (en) * | 2018-10-31 | 2019-01-15 | 芜湖飞龙汽车电子技术研究院有限公司 | A kind of vane rotor of electronic water pump for automobile |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102116320B (en) | Spent fuel pool cooling pump for nuclear power station | |
| CN201433911Y (en) | Dry-running sewage submersible pump with dirt separator | |
| CN201858161U (en) | Horizontal axial suction sectional multistage high-pressure centrifugal pump | |
| CN203230620U (en) | Friction proofing device of centrifugal electric pump | |
| CN204783844U (en) | Horizontal multistage centrifugal pump | |
| CN103912514A (en) | Water lubrication sliding bearing device for long shaft pump | |
| CN101603541B (en) | Electric diving pump | |
| CN204082560U (en) | Crude oil pipeline conveying oil line pump | |
| CN202545274U (en) | Low-noise horizontal shielding chemical electric pump | |
| CN102350403A (en) | Cooling device for transmission machine of disc separator | |
| CN103362569A (en) | Ram air turbine pump leakage control | |
| CN202646157U (en) | Improved water pump | |
| CN202579208U (en) | Improved magnetic pump | |
| CN102954005A (en) | Low-noise electric pipeline shielding pump | |
| CN203308792U (en) | Internal recycle cooling clean water centrifugal pump | |
| CN203730333U (en) | Axial force self-balancing multiple-stage centrifugal pump | |
| CN203441816U (en) | Mine diving electric pump with impeller being provided with balance hole | |
| CN102116322B (en) | Equipment cooling water pump for nuclear power station | |
| CN102410243B (en) | Particle-resistance structure for sealing turbid water pump | |
| CN104989673A (en) | Horizontal multi-stage centrifugal pump | |
| CN201650761U (en) | Backflushing type multi-stage canned motor pump used for easily gasified media | |
| CN105443397A (en) | Electronic pump | |
| CN210240014U (en) | Environment-friendly reliable pump for water treatment system | |
| CN201925233U (en) | Equipment cooling pump for nuclear power station | |
| JP2013050090A (en) | Multi-sealing structure and supercharger |
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: 20131009 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |