CN111120390A - Fan mandrel anti-tilting structure - Google Patents
Fan mandrel anti-tilting structure Download PDFInfo
- Publication number
- CN111120390A CN111120390A CN201911292083.5A CN201911292083A CN111120390A CN 111120390 A CN111120390 A CN 111120390A CN 201911292083 A CN201911292083 A CN 201911292083A CN 111120390 A CN111120390 A CN 111120390A
- Authority
- CN
- China
- Prior art keywords
- mandrel
- fan
- bearing
- wear
- end surface
- 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.)
- Pending
Links
- 239000010687 lubricating oil Substances 0.000 claims abstract description 6
- 239000000725 suspension Substances 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 241000883990 Flabellum Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/053—Shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/06—Lubrication
- F04D29/063—Lubrication specially adapted for elastic fluid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sliding-Contact Bearings (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses an anti-tilting structure of a fan mandrel, which comprises a shaft sleeve, a bearing and a mandrel, wherein the bearing is inserted into the shaft sleeve in an axially stopping manner, the mandrel is inserted into the bearing, the lower end of the mandrel is contacted with the bottom surface of the shaft sleeve through a plane, the lower end of the mandrel of a fan is made into a plane structure, a right-angle edge is formed between the side wall of the mandrel and the bottom surface of the shaft sleeve through the plane, the mandrel is subjected to the action of radial external force and cannot tilt, the phenomena of bearing abrasion and fan toppling caused by the inclination of the axis are avoided, at least one of the lower end surface of the mandrel and the upper end surface of a wear-resistant sheet is provided with a groove structure, a space for containing air or lubricating oil is formed in the groove structure, the mandrel is supported by the expansion caused by heating, the mandrel is further in a suspension state when rotating at high, the stability of the fan is improved, and the service life of the fan is prolonged.
Description
Technical Field
The invention relates to a fan, in particular to an anti-tilting structure of a fan mandrel.
Background
All need radiator fan to dispel the heat in the electronic product, radiator fan's flabellum is high-speed rotatory to take away the heat through the air current, when the dabber on the flabellum is high-speed rotatory in the bearing, in order to reduce the friction between its and the axle sleeve, the arc surface is all made to the dabber lower extreme at present, reduce the area of contact between dabber and the axle sleeve bottom surface, this structure is because the dabber lower extreme is the arc surface, the dabber receives the easy slope that takes place of exogenic action, the last medial surface of bearing is worn and torn very easily behind the dabber slope, cause the bearing to damage, the fan is at rotatory in.
Disclosure of Invention
In order to make up for the defects, the invention provides the anti-tilting structure of the fan mandrel, which can prevent the fan mandrel from tilting, avoid the abrasion to the bearing and the side turning of the fan, and has stable use and long service life.
The technical scheme adopted by the invention for solving the technical problem is as follows: the utility model provides a fan dabber anti-tilt structure, includes axle sleeve, bearing and dabber, what the bearing axial locking was inserted and is located in the axle sleeve, the dabber is inserted and is located in the bearing, the dabber lower extreme passes through the plane and contacts with the axle sleeve bottom surface.
As a further improvement of the invention, the bottom surface of the shaft sleeve is also provided with a wear-resistant plate, the lower end of the bearing is tightly propped against the upper end surface of the wear-resistant plate, and the lower end of the mandrel is contacted with the upper end surface of the wear-resistant plate.
As a further improvement of the invention, an inner groove structure is formed on at least one of the lower end surface of the mandrel and the upper end surface of the wear plate.
As a further improvement of the invention, the inner groove structure on the lower end surface of the mandrel is in opposite communication with the inner groove structure on the upper end surface of the wear-resistant sheet.
As a further improvement of the invention, the inner groove structure on the wear-resistant plate is a perforation.
As a further improvement of the invention, the inner groove structure contains lubricating oil which is preheated and expanded.
As a further improvement of the invention, the edge of the lower end of the bearing is a right-angle edge, and the edge of the upper end of the bearing is a chamfered edge.
The beneficial technical effects of the invention are as follows: the lower end of the mandrel of the fan is made into a plane structure, the plane is contacted with the bottom surface of the shaft sleeve, a right-angle edge is formed between the side wall of the mandrel and the lower end surface, the mandrel is not inclined under the action of a radial external force, and the phenomena of bearing abrasion and fan toppling caused by the inclination of the axis are avoided.
Drawings
FIG. 1 is a schematic diagram of a first structural principle of the present invention;
FIG. 2 is a schematic diagram of a second structural principle of the present invention;
FIG. 3 is a schematic diagram of a third structural principle of the present invention;
fig. 4 is a schematic view of the usage state of the present invention.
Detailed Description
Example (b): a fan mandrel 3 anti-tilting structure comprises a shaft sleeve 1, a bearing 2 and a mandrel 3, wherein the bearing 2 is axially stopped and inserted into the shaft sleeve 1, the mandrel 3 is inserted into the bearing 2, and the lower end of the mandrel 3 is in contact with the bottom surface of the shaft sleeve 1 through a plane. When the fan is used, the coil stator 4 of the fan is fixedly sleeved on the outer side of the shaft sleeve 1, the fan blade 5 is fixedly installed at the upper end of the mandrel 3, the magnet 6 on the fan blade rotates under the action of the coil stator, when the mandrel 3 rotates, the lower end of the mandrel is always in plane contact with the bottom surface of the shaft sleeve 1, under the action of right-angle edges of the lower end of the mandrel 3, the mandrel 3 cannot incline in the rotating process, even under the action of external force, the mandrel can only translate in a small range in a limited space in the horizontal plane direction, the inner-side edges of the upper end of the bearing 2 cannot rub against the inner-side edges of the upper end of the bearing 2, the bearing 2 is prevented from being worn, meanwhile, the fan is prevented from toppling due to the inclination of the.
The bottom surface of the shaft sleeve 1 is also provided with a wear-resistant sheet 7, the lower end of the bearing 2 tightly abuts against the upper end surface of the wear-resistant sheet 7, and the lower end of the mandrel 3 is in contact with the upper end surface of the wear-resistant sheet 7. Through the use of the wear-resistant sheet 7, the long-term wear of the shaft sleeve 1 is avoided, and the service life of the fan is prolonged.
An inner groove structure 8 is formed on at least one of the lower end surface of the mandrel 3 and the upper end surface of the wear-resistant plate 7. The contact area between the mandrel 3 and the wear-resistant sheet 7 is reduced by forming a groove structure between the lower end surface of the mandrel 3 and the upper end surface of the wear-resistant sheet 7, friction is effectively reduced, meanwhile, a space for containing air is formed between the lower end of the mandrel 3 and the upper end of the wear-resistant sheet 7 through the inner groove structure 8, when the mandrel 3 rotates at a high speed, heat is generated inside the shaft sleeve 1 due to friction, the air in the inner groove structure 8 expands in volume after being heated, the pressure between the supporting mandrel 3 and the wear-resistant sheet 7 which are subjected to expanding gas is greatly reduced to form a similar suspension state, the friction force between the mandrel 3 and the wear-resistant sheet 7 is further reduced, the high-speed and stable rotation of the mandrel 3 is realized, the service life of a fan is prolonged in response, the inner groove structure 8 can be formed on the lower end surface of the mandrel 3 or the upper end surface of the wear-resistant sheet 7 alone, and the inner groove structures, the inner groove structure 8 can be one or a plurality of inner groove structures distributed uniformly.
The inner groove structure 8 on the lower end surface of the mandrel 3 is in opposite communication with the inner groove structure 8 on the upper end surface of the wear-resistant sheet 7. Realize holding of more air through two just right groove structure, improve the suspension power when dabber 3 is rotatory, of course, the inner groovy structure 8 of dabber 3 lower extreme and the inner groovy structure 8 of wear pad 7 upper end also can be the dislocation, for improving dabber 3 operating stability, inner groovy structure 8 is optimum to set up for following the axle center symmetry, can also be a plurality ofly for one.
The inner groove structure 8 on the wear-resistant plate 7 is a perforation. The bottom surface of the shaft sleeve 1 is matched with the through hole to form a groove structure, and the structure is convenient for manufacturing the wear-resistant plate 7.
The inner groove structure 8 contains lubricating oil which is preheated and expanded. Lubricating oil plays lubricated effect, and simultaneously, lubricating oil is heated the inflation, plays the support effect to dabber 3 lower terminal surface, realizes that dabber 3 suspension is rotatory, and frictional force between greatly reduced dabber 3 and the wear pad 7 improves fan stability in use and life.
The edge at the lower end of the bearing 2 is a right-angle edge, and the edge at the upper end of the bearing 2 is a chamfered edge.
Claims (7)
1. The utility model provides a structure of preventing inclining of fan dabber, includes axle sleeve (1), bearing (2) and dabber (3), what the bearing axial locking was inserted and is located in the axle sleeve, the dabber is inserted and is located in the bearing, its characterized in that: the lower end of the mandrel is in contact with the bottom surface of the shaft sleeve through a plane.
2. The fan mandrel anti-tilt structure of claim 1, wherein: the bottom surface of the shaft sleeve is also provided with a wear-resistant sheet (7), the lower end of the bearing tightly abuts against the upper end surface of the wear-resistant sheet, and the lower end of the mandrel is in contact with the upper end surface of the wear-resistant sheet.
3. The fan mandrel anti-tilt structure of claim 2, wherein: an inner groove structure (8) is formed on at least one of the lower end surface of the mandrel and the upper end surface of the wear plate.
4. The fan mandrel anti-tilt structure of claim 3, wherein: the inner groove structure on the lower end surface of the mandrel is communicated with the inner groove structure on the upper end surface of the wear-resistant sheet in a facing mode.
5. The fan mandrel anti-tilt structure of claim 3, wherein: the inner groove structure on the wear-resistant sheet is a through hole.
6. The fan mandrel anti-tilt structure of claim 3, wherein: and the inner groove structure contains preheated expanded lubricating oil.
7. The fan mandrel anti-tilt structure of claim 1, wherein: the edge of the lower end of the bearing is a right-angle edge, and the edge of the upper end of the bearing is a chamfered edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911292083.5A CN111120390A (en) | 2019-12-16 | 2019-12-16 | Fan mandrel anti-tilting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911292083.5A CN111120390A (en) | 2019-12-16 | 2019-12-16 | Fan mandrel anti-tilting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111120390A true CN111120390A (en) | 2020-05-08 |
Family
ID=70500026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911292083.5A Pending CN111120390A (en) | 2019-12-16 | 2019-12-16 | Fan mandrel anti-tilting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111120390A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112576540A (en) * | 2020-12-29 | 2021-03-30 | 苏州柯琳艾尔智能科技有限公司 | Fan bearing system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09170622A (en) * | 1995-12-19 | 1997-06-30 | Matsushita Electric Ind Co Ltd | Thrust bearing system and motor |
| KR100233011B1 (en) * | 1997-04-25 | 1999-12-01 | 윤종용 | Fluid bearing system |
| JP2001107946A (en) * | 1999-10-07 | 2001-04-17 | Sankyo Seiki Mfg Co Ltd | Dynamic pressure bearing device and its manufacturing method and manufacturing method of molding die to be used for this manufacturing method |
| CN2658437Y (en) * | 2003-11-11 | 2004-11-24 | 世镒科技股份有限公司 | Bearing assembly of radiating fan |
| CN1711429A (en) * | 2002-10-24 | 2005-12-21 | Ntn株式会社 | Hydrodynamic bearing device |
| US20080037916A1 (en) * | 2004-03-30 | 2008-02-14 | Tatsuya Hayashi | Dynamic Bearing Device |
| CN106151096A (en) * | 2015-04-17 | 2016-11-23 | 奇鋐科技股份有限公司 | Fan beam barrel integrated structure |
| CN211370809U (en) * | 2019-12-16 | 2020-08-28 | 苏州柯琳艾尔智能科技有限公司 | Fan mandrel anti-tilting structure |
-
2019
- 2019-12-16 CN CN201911292083.5A patent/CN111120390A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09170622A (en) * | 1995-12-19 | 1997-06-30 | Matsushita Electric Ind Co Ltd | Thrust bearing system and motor |
| KR100233011B1 (en) * | 1997-04-25 | 1999-12-01 | 윤종용 | Fluid bearing system |
| JP2001107946A (en) * | 1999-10-07 | 2001-04-17 | Sankyo Seiki Mfg Co Ltd | Dynamic pressure bearing device and its manufacturing method and manufacturing method of molding die to be used for this manufacturing method |
| CN1711429A (en) * | 2002-10-24 | 2005-12-21 | Ntn株式会社 | Hydrodynamic bearing device |
| CN2658437Y (en) * | 2003-11-11 | 2004-11-24 | 世镒科技股份有限公司 | Bearing assembly of radiating fan |
| US20080037916A1 (en) * | 2004-03-30 | 2008-02-14 | Tatsuya Hayashi | Dynamic Bearing Device |
| CN106151096A (en) * | 2015-04-17 | 2016-11-23 | 奇鋐科技股份有限公司 | Fan beam barrel integrated structure |
| CN211370809U (en) * | 2019-12-16 | 2020-08-28 | 苏州柯琳艾尔智能科技有限公司 | Fan mandrel anti-tilting structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112576540A (en) * | 2020-12-29 | 2021-03-30 | 苏州柯琳艾尔智能科技有限公司 | Fan bearing system |
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| PB01 | Publication | ||
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