CN101055002B - Fan, bearing structure and its oil bearing - Google Patents
Fan, bearing structure and its oil bearing Download PDFInfo
- Publication number
- CN101055002B CN101055002B CN200610075388A CN200610075388A CN101055002B CN 101055002 B CN101055002 B CN 101055002B CN 200610075388 A CN200610075388 A CN 200610075388A CN 200610075388 A CN200610075388 A CN 200610075388A CN 101055002 B CN101055002 B CN 101055002B
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- oil
- bearing
- impregnated bearing
- impregnated
- sleeve
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Abstract
The present invention discloses an oilness bearing which includes an axle hole and a plurality of grooves. Each groove extends from the inner wall of the bearing to the outer wall of the bearing through the top surface of the bearing, and can effectively guide the lubricant oil gas in the bearing to flow.
Description
Technical field
The present invention relates to a kind of fan, bearing structure and oil-impregnated bearing thereof (sleeve bearing), particularly relate to a kind of fan, bearing structure and oil-impregnated bearing thereof that reduces lubricating fluid consumption and volatilization.
Background technique
Motor has been widely used on the traffic tool, fan, suction engine and computer peripheral equipment (for example printer, the scanner etc.) product, and the bearing structure in the motor directly influences the quality of motor.For strengthening the lubricated and shock resistance effectiveness from body of bearing, the normal oil-impregnated bearing that adopts, existing oil-impregnated bearing is to make with made from porous material, its inside has a plurality of trickle holes and contains lubricant oil, when rotation is held in a rotating shaft, oil-impregnated bearing is by the capillary phenomenon of trickle hole, can make lubricant oil fill up gap between rotating shaft and the oil-impregnated bearing, reaches lubricated effect.
Please refer to shown in Figure 1ly, it has an axis hole 101 for a kind of existing oil-impregnated bearing 10, and in order to a ccontaining rotating shaft 11, this oil-impregnated bearing 10 is arranged in the sleeve 12 of a stator seat.Because an end face 102 of this oil-impregnated bearing 10 directly contacts with extraneous, lubricant oil can be from these end face 102 volatilizations of this oil-impregnated bearing 10, in addition, lubricant oil can from the gap between this oil-impregnated bearing 10 and this rotating shaft 11, and this oil-impregnated bearing 10 and this sleeve 12 between the gap seepage.Especially when this oil-impregnated bearing 10 is inverted use, the situation of seepage is with even more serious, and then make this oil-impregnated bearing shorten for 10 working lifes, or make between this rotating shaft 11 or this sleeve 12 and this oil-impregnated bearing friction excessive because lubricant oil is not enough, cause overall operation to have some setbacks.
For solving this kind problem, please refer to shown in Figure 2, this end face 102 of this oil-impregnated bearing 10 is provided with a seal diaphragm 13, to block the approach of oil seepage, but effectiveness is limited, lubricant oil still can from the gap between this oil-impregnated bearing 10 and this rotating shaft 11, and this oil-impregnated bearing 10 and this sleeve 12 between the outside seepage in gap.
The whence is because of in this, how a kind of bearing structure that can effectively reduce lubricating fluid consumption and volatilization and circulating lubricating loop is provided is provided, with the friction between reduction sleeve and the oil-impregnated bearing, so the working life of improving oil-impregnated bearing, one of current just important topic.
Summary of the invention
Because above-mentioned problem, the object of the present invention is to provide the fan of consumption of a kind of effective minimizing lubricating fluid and volatilization and the bearing structure and the oil-impregnated bearing thereof of circulating lubricating loop are provided, with the friction between reduction sleeve and the oil-impregnated bearing, and then the working life of improving oil-impregnated bearing.
In order to reach above-mentioned purpose, the invention provides a kind of oil-impregnated bearing, it comprises an axis hole and a plurality of first and second groove.Should each first channel shaped be formed in a wall of this axis hole, and extend to the end face of this oil-impregnated bearing, a plurality of second grooves are formed on the outer periphery of this oil-impregnated bearing, and extend to the end face of this oil-impregnated bearing and do not extend to the bottom surface of this oil-impregnated bearing.
In order to reach above-mentioned purpose, the present invention also provides a kind of bearing structure, and itself and a rotating shaft match to merge and be arranged in the sleeve, and this bearing structure has at least one oil-impregnated bearing, and this oil-impregnated bearing comprises an axis hole and a plurality of first and second groove.This rotating shaft wore this axis hole, respectively first channel shaped is formed in a wall of this axis hole, and extend to the end face of this oil-impregnated bearing, a plurality of second grooves are formed on the outer periphery of this oil-impregnated bearing, and extend to the end face of this oil-impregnated bearing and do not extend to the bottom surface of this oil-impregnated bearing.
For reaching above-mentioned purpose,, comprise an impeller, a stator structure and a rotor structure according to a kind of fan of the present invention.This impeller has the outer periphery that a wheel hub and a plurality of flabellum are located on this wheel hub; This stator structure has an excitatory element and a sleeve; Then corresponding with this stator structure setting of this rotor structure has a rotating shaft and a bearing structure, and this rotating shaft is connected with this wheel hub, and this bearing structure then is arranged in this sleeve, and has at least one oil-impregnated bearing.This oil-impregnated bearing comprises an axis hole and a plurality of first and second groove, this rotating shaft wore this axis hole, respectively first groove then is formed at a wall of this axis hole, and extend to the end face of this oil-impregnated bearing, a plurality of second grooves are formed on the outer periphery of this oil-impregnated bearing, and extend to the end face of this oil-impregnated bearing and do not extend to the bottom surface of this bearing.
From the above, a kind of fan of the present invention, bearing structure and oil-impregnated bearing thereof utilize an oil-impregnated bearing to match with a rotating shaft and sleeve, make this rotating shaft wear this oil-impregnated bearing, and this oil-impregnated bearing then is arranged in the interior containing space of this sleeve.This oil-impregnated bearing then is to constitute by axis hole, a plurality of first groove, a plurality of lead angle and at least one side cut.Compared with prior art, when this oil-impregnated bearing rotation, the present invention utilizes the structural design of this each first groove, this each lead angle and this side cut, the oil gas of this lubricating fluid is fully mixed and form a circulating lubricating loop, and all produce the oil gas dynamic pressure in the end face and the outer periphery of this oil-impregnated bearing, upwards to produce thrust function in axially reaching the footpath, not only can avoid this oil-impregnated bearing that the end face and the inwall of this sleeve are produced friction, more reduce bearing vertical tremor and gas hammer phenomenon, and need not use existing wear plate.In addition, the present invention makes this lubricating fluid form circulation loop in the containing space of sealing, reduces the consumption and the volatilization of this lubricating fluid, and then prolongs the working life of this oil-impregnated bearing, and the machining accuracy of this oil-impregnated bearing does not need very accurate, so can reduce manufacture cost.
Description of drawings
Fig. 1 is a kind of schematic representation of existing oil-impregnated bearing;
Fig. 2 is the schematic representation of another kind of existing oil-impregnated bearing;
Fig. 3 is the schematic representation according to a kind of oil-impregnated bearing of preferred embodiment of the present invention;
Fig. 4 is the schematic representation according to the another kind of oil-impregnated bearing of preferred embodiment of the present invention;
Fig. 5 is the schematic representation according to a kind of bearing structure of preferred embodiment of the present invention;
Fig. 6 be during according to the rotation of the bearing structure of preferred embodiment of the present invention and sleeve between the schematic representation in formed gap; And
Fig. 7 is the schematic representation according to a kind of fan of preferred embodiment of the present invention.
The component symbol explanation:
10 oil-impregnated bearings, 101 axis holes
11 rotating shafts of 102 end faces
12 sleeves, 13 seal diaphragms
1,1 ' oil-impregnated bearing, 11 axis holes
111 walls, 12 first grooves
13 end faces, 14 outer periphery
15 second grooves, 16 lead angles
17 side cuts, 2 bearing structures
3 rotating shafts, 4 sleeves
41 inwalls, 42 positioning parts
421 locating pieces, 43 containing spaces
44 openings, 45 lids
451 perforation, 46 openings
47 envelope confidential paper, 5 fans
51 impellers, 511 wheel hubs
512 flabellums, 52 stator structures
521 sleeves, 52 2 excitatory elements
531 rotating shafts of 53 rotor structures
532 bearing structures, 5321 oil-impregnated bearings
S gap O oil gas
Embodiment
Hereinafter with reference to correlative type, a kind of fan, bearing structure and oil-impregnated bearing thereof according to preferred embodiment of the present invention are described, wherein components identical will be illustrated with identical reference marks.
Please refer to shown in Figure 3ly, a kind of oil-impregnated bearing 1 of preferred embodiment of the present invention comprises an axis hole 11 and a plurality of first groove 12.In the present embodiment, should be arranged at a wall 111 of this axis hole 11 by each first groove 12, and extend to the end face 13 of this oil-impregnated bearing 1.Should each first groove 12 be and extend in parallel with the axial direction of this axis hole 11, or in the wall 111 of axis hole 11 in the shape of a spiral shape extend (figure shows).
The outer periphery 14 of this oil-impregnated bearing 1 also can form a plurality of second grooves 15, should each second groove 15 can corresponding these first grooves 12, or correspondence be formed at should each first groove 12 between (figure is demonstration).When this oil-impregnated bearing 1 rotation, lubricating fluid flows upward to the end face 13 of this oil-impregnated bearing 1 along this each first groove 12, flow downward along this each second groove 15 again, form circulating lubricating loop, remove the end face 13 of this oil-impregnated bearing 1 of Castor Oil, more can avoid lubricating fluid in the excessively volatilization and consuming of this end face 13.
Please refer to shown in Figure 4, another kind of oil-impregnated bearing 1 ' according to preferred embodiment of the present invention, be with the difference of this oil-impregnated bearing 1 (as shown in Figure 3) of above-mentioned preferred embodiment: the outer periphery 14 of this oil-impregnated bearing 1 ' should each second groove 15 to should each first groove 12 being provided with, and will be somebody's turn to do the end face 13 of first groove, 12 direct these bearings 1 ' of extend past respectively and the outer periphery 14 of this oil-impregnated bearing 1 ' that arrives; This oil-impregnated bearing 1 ' also can comprise a plurality of lead angles 16, and its correspondence is formed at the jointing place of the end face 13 of this each first groove 12 and this oil-impregnated bearing 1 '.In the present embodiment, the shape of this each lead angle 16 is also unrestricted, can be an inclined-plane (as shown in the figure) or an arc surface (figure does not show), and this each lead angle 16 helps lubricating fluid to flow to end face 13.
This oil-impregnated bearing 1 ' also can comprise at least one side cut 17, and it is formed at the outer periphery 14 of this oil-impregnated bearing 1 '; This quantity of 17 and unrestricted of cutting edge, if this cuts edge 17 when being a plurality of, this is respectively cut edge and 17 can be and be symmetrical arranged, size also can be identical.By the structural design of this each first groove 12, this each lead angle 16 and this side cut 17, when making this oil-impregnated bearing 1 ' rotation, lubricating fluid can be guided to this end face 13 and this side cut 17 smoothly, and the oil gas that improves lubricating fluid mixes, and avoids producing gas hammer phenomenon.
Please refer to shown in Figure 5, an a kind of bearing structure 2 of preferred embodiment of the present invention and a rotating shaft 3 match to merge and are arranged in the sleeve 4, this bearing structure 2 has at least one oil-impregnated bearing, this oil-impregnated bearing has identical formation and function with the oil-impregnated bearing 1 (as shown in Figure 3) or the oil-impregnated bearing 1 ' (as shown in Figure 4) of above-mentioned preferred embodiment, so repeat no more.This bearing structure 2 can be applicable to a rotor structure of motor or fan, below is that to have two oil-impregnated bearings 1 ' with this bearing structure 2 be that example is illustrated.
The inwall 41 of this sleeve 4 has a positioning part 42, provide this rotating shaft 3 to be set out, make and form a containing space 43 between this positioning part 42 and this sleeve 4 tops, this oil-impregnated bearing 1 ' then is placed in this containing space 43. in the present embodiment, this positioning part 42 has positioning piece 421, make this positioning part 42 can pass through this locating piece 421, with this oil-impregnated bearing 1 ' of butt, and also can one-body moldedly make with this sleeve 4 this positioning part 42.
The top of this sleeve 4 has an opening 44, and this rotating shaft 3 wears a perforation 451 of these lid 45 central authorities to 44 of this openings by a lid 45 sealings, and this lid 45 also can one-body moldedly be made with this sleeve 4.
In addition, the bottom of this sleeve 4 of present embodiment has an opening 46, and with these opening 46 sealings, this closure member 47 also can be formed in one with this sleeve 4 and make this opening 46 by a closure member 47.
Please be simultaneously with reference to shown in Figure 6, when this rotating shaft 3 drove these bearing structure 2 rotations, the oil-impregnated bearing 1 ' of this bearing structure 2 can disengage lubricant oil, and forms an oil gas O with air mixing, and this oil gas O can import these 17 outer walls of cutting edge along this first groove 12; The change that makes the gap S between this side cut 17 and this containing space 43 can produce from large to small, change from small to big along with the rotation of this bearing structure 2 makes to make its mixing more even by this bearing structure 2 this oil gas of extruding O.Simultaneously, this oil gas O also can flow to the end face 13 of this oil-impregnated bearing 1 ' along this first groove 12, this lead angle 16, flows to this side cut 17 of the outer periphery 14 of this oil-impregnated bearing 1 ' again along this first groove 12, and inserts this gap S; After oil gas O filled up gap S, unnecessary oil gas O can be concentrated in the containing space 43 of oil-impregnated bearing 1 ' outside, and along with the rotating speed of this rotor structure is high more, the effect that this lubricating fluid O concentrates is obvious more.And the oil gas O after concentrating can utilize capillary phenomenon to insert the gap and first groove 12 between this oil-impregnated bearing 1 ' and the rotating shaft 3, and forms a circulating lubricating loop.
Because the oil gas O of this circulating lubricating loop can flow to the end face 13 of this oil-impregnated bearing 1 ' smoothly, can make and produce the oil gas dynamic pressure between this oil-impregnated bearing 1 ' and this lid 45, make this bearing structure 2 on axially, have thrust function, avoid this oil-impregnated bearing 1 ' and this lid 45 to produce friction, so need not to use wear plate.In addition, the oil gas O of this circulating lubricating loop also can the variation by this gap S size produce dynamic pressure between this oil-impregnated bearing 1 ' and this sleeve 4, produce thrust function diametrically.
Please refer to shown in Figure 7ly, a kind of fan 5 of preferred embodiment of the present invention comprises an impeller 51, a stator structure 52 and a rotor structure 53.In the present embodiment, this impeller 51 has a wheel hub 511 and a plurality of flabellum 512, and this each flabellum 512 is located on the outer periphery of this wheel hub 511; And this stator structure 52 has a sleeve 521 and an excitatory element 522.
This rotor structure 53 and these stator structure 52 corresponding settings, and have a rotating shaft 531 and a bearing structure 532, this rotating shaft 531 is connected with this wheel hub 511, and this bearing structure 532 is arranged in this sleeve 521, and this bearing structure 532 comprises at least one oil-impregnated bearing 5321.
This oil-impregnated bearing 5321 of present embodiment, this bearing structure 532, this rotating shaft 531 and this sleeve 521 have identical formation and function with this oil-impregnated bearing 1 or 1 ', this bearing structure 2, this rotating shaft 3 and this sleeve 4 of above-mentioned preferred embodiment, so repeat no more.
In sum, a kind of fan of the present invention, bearing structure and oil-impregnated bearing thereof utilize an oil-impregnated bearing to match with a rotating shaft and sleeve, make this rotating shaft wear this oil-impregnated bearing, this oil-impregnated bearing then is arranged at by in the containing space in this sleeve. and this oil-impregnated bearing then has axis hole, a plurality of first grooves (and a plurality of second grooves), the structure of a plurality of lead angles and at least one side cut. compared with prior art, when this oil-impregnated bearing in when rotation, the present invention utilizes this each first groove (and being somebody's turn to do each second groove), the structural design of this each lead angle and this side cut is fully mixed this lubricating fluid oil gas and is formed a circulating lubricating loop; And can make the gap between this oil-impregnated bearing and this sleeve have oil gas, and then make the end face of this oil-impregnated bearing and this outer periphery all produce an oil gas dynamic pressure, radially to produce thrust function in axially reaching, not only can avoid this oil-impregnated bearing to the end face of this sleeve and friction that inwall produces, more reduce bearing vertical tremor and gas hammer phenomenon, and need not use existing wear plate. in addition, the present invention makes this lubricating fluid form circulation loop in the containing space of sealing, reduce the consumption and the volatilization of this lubricating fluid, and then prolong working life of this oil-impregnated bearing, and the machining accuracy of this oil-impregnated bearing does not need very accurate, so can reduce manufacture cost.
The above only is an illustrative, but not is restricted person.Anyly do not break away from spirit of the present invention and category, and, all should be included in the present invention's scope required for protection its equivalent modifications of carrying out or change.
Claims (19)
1. oil-impregnated bearing comprises:
One axis hole; And
A plurality of first grooves are formed at a wall of this axis hole, and extend to the end face of this bearing; And
A plurality of second grooves are formed on the outer periphery of this bearing, and extend to the end face of this bearing and do not extend to the bottom surface of this bearing.
2. oil-impregnated bearing as claimed in claim 1, wherein should each first groove be axial direction with this axis hole be extend in parallel or in the wall of this axis hole in the shape of a spiral shape extend.
3. oil-impregnated bearing as claimed in claim 1, wherein this first groove more extends to the outer periphery of this oil-impregnated bearing.
4. oil-impregnated bearing as claimed in claim 1, wherein should each second groove to should each first groove or be formed at respectively between first groove.
5. oil-impregnated bearing as claimed in claim 1 also comprises a plurality of lead angles, is formed at the jointing place of this each first groove and this bearing end face, and wherein this each lead angle is an inclined-plane or an arc surface.
6. oil-impregnated bearing as claimed in claim 1 also comprises at least one side cut, is formed at the outer periphery of this bearing.
7. oil-impregnated bearing as claimed in claim 6, wherein this is cut edge to a plurality of and be and be symmetrical arranged.
8. bearing structure, matching to merge with a rotating shaft is arranged in the sleeve, and this bearing structure has at least one oil-impregnated bearing, and this oil-impregnated bearing comprises:
One axis hole provides this rotating shaft to wear therebetween; And
A plurality of first grooves are formed at a wall of this axis hole, and extend to the end face of this oil-impregnated bearing; And
A plurality of second grooves are formed on the outer periphery of this oil-impregnated bearing, and extend to the end face of this oil-impregnated bearing and do not extend to the bottom surface of this oil-impregnated bearing.
9. bearing structure as claimed in claim 8, wherein this of this oil-impregnated bearing first groove more extends to the outer periphery of this oil-impregnated bearing.
10. bearing structure as claimed in claim 8, wherein this second groove is to should each first groove or be formed at respectively between first groove.
11. bearing structure as claimed in claim 8, wherein this oil-impregnated bearing also comprises a plurality of lead angles, is formed at the jointing place of this each first groove and this oil-impregnated bearing end face, and this each lead angle is an inclined-plane or an arc surface.
12. bearing structure as claimed in claim 8, wherein this oil-impregnated bearing also comprises at least one side cut, is formed at the outer periphery of this oil-impregnated bearing.
13. bearing structure as claimed in claim 8, wherein the inwall of this sleeve has a positioning part, and this rotating shaft is set out, and makes and forms a containing space between this positioning part and this sleeve top, with ccontaining this oil-impregnated bearing therebetween.
14. bearing structure as claimed in claim 13, wherein this positioning part and this sleeve are formed in one and make.
15. bearing structure as claimed in claim 8, wherein the bottom of this sleeve has an opening, and this opening is by closure member sealing.
16. bearing structure as claimed in claim 15, wherein this closure member and this sleeve are formed in one and make.
17. bearing structure as claimed in claim 8, wherein the top of this sleeve has an opening, and this opening is by lid sealing, and this rotating shaft wears a perforation of these lid central authorities.
18. bearing structure as claimed in claim 17, wherein this lid and this sleeve are formed in one and make.
19. a fan comprises:
One impeller comprises that a wheel hub and a plurality of flabellum are located on the outer periphery of this wheel hub;
One stator structure comprises an excitatory element and a sleeve; And
One rotor structure, corresponding setting with this stator structure, this rotor structure has a rotating shaft and a bearing structure, and this rotating shaft is connected with this wheel hub, and this bearing structure is arranged in this sleeve, and has at least one oil-impregnated bearing, and this oil-impregnated bearing comprises:
One axis hole wears therebetween for this rotating shaft;
A plurality of first grooves are formed at a wall of this axis hole, and extend to the end face of this oil-impregnated bearing; And
A plurality of second grooves are formed on the outer periphery of this oil-impregnated bearing, and extend to the end face of this oil-impregnated bearing and do not extend to the bottom surface of this oil-impregnated bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610075388A CN101055002B (en) | 2006-04-11 | 2006-04-11 | Fan, bearing structure and its oil bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610075388A CN101055002B (en) | 2006-04-11 | 2006-04-11 | Fan, bearing structure and its oil bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101055002A CN101055002A (en) | 2007-10-17 |
| CN101055002B true CN101055002B (en) | 2010-05-12 |
Family
ID=38794998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610075388A Expired - Fee Related CN101055002B (en) | 2006-04-11 | 2006-04-11 | Fan, bearing structure and its oil bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101055002B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080684A (en) * | 2009-11-30 | 2011-06-01 | 富准精密工业(深圳)有限公司 | Bearing system |
| CN106545517A (en) * | 2015-09-21 | 2017-03-29 | 朱曙新 | A kind of through-flow fan blade bearing and its processing technique |
| CN107989819B (en) * | 2016-10-26 | 2023-12-05 | 深圳兴奇宏科技有限公司 | Bearing structure and cooling fan thereof |
| CN107327420B (en) * | 2017-07-04 | 2023-10-03 | 上海马陆日用友捷汽车电气有限公司 | Fan hub capable of reducing vibration noise of radiator fan motor |
| TWI648938B (en) * | 2017-12-29 | 2019-01-21 | 建準電機工業股份有限公司 | motor |
| CN111720357A (en) * | 2019-03-21 | 2020-09-29 | 保锐科技股份有限公司 | Fan and self-lubricating bearing thereof |
| CN109958652A (en) * | 2019-05-08 | 2019-07-02 | 深圳市得臣实业有限公司 | A kind of oiliness bearing and high life fan |
| TWI786371B (en) * | 2020-02-07 | 2022-12-11 | 建準電機工業股份有限公司 | Fluid conveying device and its housing |
-
2006
- 2006-04-11 CN CN200610075388A patent/CN101055002B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101055002A (en) | 2007-10-17 |
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Assignee: Delta Electronics (Dongguan) Inc. Assignor: Delta Optoelectronics Inc. Contract record no.: 2011990000747 Denomination of invention: Fan, bearing structure and its oil bearing Granted publication date: 20100512 License type: Exclusive License Open date: 20071017 Record date: 20110803 |
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| 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: 20100512 Termination date: 20180411 |