CN100481681C - Fan motor, and oil sealing bearing system thereof - Google Patents
Fan motor, and oil sealing bearing system thereof Download PDFInfo
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- CN100481681C CN100481681C CNB2005100733183A CN200510073318A CN100481681C CN 100481681 C CN100481681 C CN 100481681C CN B2005100733183 A CNB2005100733183 A CN B2005100733183A CN 200510073318 A CN200510073318 A CN 200510073318A CN 100481681 C CN100481681 C CN 100481681C
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- bearing
- oil
- rotor axis
- leakproof
- fixed seat
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Abstract
The bearing system of anti oil leaking includes a bearing, a cover of anti oil leaking, and a rotor axis. There is a through hole at center of the cover of anti oil leaking. A first rille of guiding oil is designed on sidewall inside hole. Direction of the first rille of guiding oil is extended from superior margin on sidewall downwards aslope. Thus, lubricating oil thrown out by rotor axis is forced to reflow back to bearing system along the first rille of guiding oil. Roughly radicalized second rilles of guiding oil are designed on underside of the cover of anti oil leaking contacted to the bearing. Capillarity guides lubricating oil thrown out by rotor axis to radial direction. Through the designed first and second rilles of guiding oil on the cover of anti oil leaking, the invention avoids running off lubricating oil overflowed so as to provide periodic use of closed oil way.
Description
Technical field
The present invention relates to a kind of bearing arrangement, particularly a kind of bearing arrangement that can prevent leakage of oil.
Background technology
See also Fig. 1, Fig. 1 is a traditional bearing system generalized section.This traditional bearing system includes: a bearing fixed seat 10, bearing 12, cramp 14, holder bottom cover 16, wear plate 18, leakproof oil cap 20 and rotor axis 22.
This bearing fixed seat 10 is a hollow base frame, can be ccontaining and fix this bearing 12 in its inside.These bearing 12 centers have a through hole, are used for ccontaining this rotor axis 22.16 of this holder bottom cover are used for supporting this bearing 12 and seal this bearing arrangement bottom.This cramp 14 is folded between this bearing 12 and this holder bottom cover 16; This wear plate 18 then is folded between this rotor axis 22 and this holder bottom cover 16.20 of this leakproof oil caps are disposed at this bearing 12 tops, and in order to seal the top of this bearing arrangement, the center has a through hole, are used for making this rotor axis 22 to pass.Wherein, this bearing 12 utilizes powder sintered being made, and its inside then has lubricating oil to scatter therebetween with the surface.
When this rotor axis 22 began to rotate, the lubricating oil of these bearing 12 inside can make this rotor axis 22 more smooth-going, runnings smoothly, to guarantee the useful life of this rotor axis 22 and this bearing 12.Yet in this traditional bearing system, when rotor axis 22 rotations, lubricating oil can outwards throw away from the outer wall of this rotor axis 22, and then flows out from the gap of this rotor axis 22 and this leakproof oil cap 20, and has influenced the life-span of this bearing arrangement.What is more, and some traditional bearing arrangement leakproof oil cap is not all installed, and the lubricating oil of its bearing runs off easier effusion.
Therefore, the present invention is through concentrated test and research and a spirit of working with perseverance in view of the shortcoming of prior art, creates " bearing arrangement of fan motor and anti-leakage of oil thereof " of the present invention eventually.It below is brief description of the present invention.
Summary of the invention
The leakproof oil cap that provides a kind of oil sealing bearing system to use is provided main purpose of the present invention, its with endoporus sidewall that a rotor axis contacts on design have the second Oil Guide rill, can force the lubricating oil of dishing out to flow back in this bearing arrangement downwards, run off to keep away the lubricating oil effusion along this second Oil Guide rill by this rotor axis.
Another object of the present invention ties up to that design has the summary first Oil Guide rill radially on this leakproof oil cap and the bottom surface that a bearing contacts, can be by capillarity with the lubricating oil radial guide of dishing out from this rotor axis, and then be back to an accumulator that is positioned at this bearing below, can avoid lubricating oil to overflow and run off, recycling of airtight oil circuit is provided.
For achieving the above object, the invention provides a kind of bearing arrangement of anti-leakage of oil, it includes: a bearing, a leakproof oil cap and a rotor axis.This bearing centre place has a through hole, is used for ccontaining this rotor axis.This leakproof oil cap is disposed at this bearing top, and the center has a through hole, is used for making this rotor axis to pass; Wherein the design of the madial wall of the through hole of this leakproof oil cap has the second Oil Guide rill, the direction of this second Oil Guide rill is to be tilted to down extension by this sidewall upper limb, can force the lubricating oil of being dished out by this rotor axis to flow back in this bearing arrangement along this second Oil Guide rill downwards; Design has the summary first Oil Guide rill radially on this leakproof oil cap and the bottom surface that this bearing contacts, can be with the lubricating oil that throws away from this rotor axis to direction guiding radially by capillarity.By the first Oil Guide rill of this leakproof oil cap and the design of the second Oil Guide rill, can avoid lubricating oil to overflow and run off, and recycling of airtight oil circuit can be provided.
Wherein, also can on the surface corresponding to this leakproof oil cap bottom of this rotor axis, inwardly offer a centrifugal ditch, and this centrifugal ditch is around this one week of rotor axis, so more can compile from accumulator or along the second Oil Guide rill and the lubricating oil that comes, and then radially outward throw away lubricating oil by the power of this rotor axis rotation.
The present invention also provides a kind of fan motor, comprising: a bearing arrangement comprises: a bearing, the center are provided with a through hole; One leakproof oil cap, it is arranged at the top of this bearing, establishes tool one through hole in the center of this leakproof oil cap; One rotor axis is passed the through hole of this leakproof oil cap and the through hole of this bearing respectively, can rotate; And a bearing fixed seat, be a hollow base frame, be used for ccontaining and support this bearing, this leakproof oil cap and this rotor axis; Wherein design has the summary first Oil Guide rill radially on the bottom surface of this leakproof oil cap, the lubricating oil that throws away from this rotor axis radially can be guided; One motor rotor, an end of this rotor axis of the center and this bearing arrangement is connected; And a motor stator, its be socketed in this bearing arrangement this bearing fixed seat around.
Description of drawings
Fig. 1 is a traditional bearing system generalized section.
Fig. 2 is an embodiment generalized section of bearing arrangement of the present invention.
Fig. 3 A, 3B are an embodiment stereogram of leakproof oil cap of the present invention.
Fig. 4 A, 4B are the through hole madial wall schematic diagram of the leakproof oil cap of Fig. 2.
Fig. 5 A～5E is the bottom surface first Oil Guide rill schematic diagram of the leakproof oil cap of Fig. 2.
Fig. 6 is the oil circuit circuit system schematic diagram of Fig. 2.
Fig. 7 is the embodiment generalized section that bearing arrangement of the present invention is used in fan motor.
Fig. 8 is another embodiment generalized section that bearing arrangement of the present invention is used in fan motor.
Fig. 9 is the 3rd embodiment generalized section that bearing arrangement of the present invention is used in fan motor.
[primary clustering symbol description]
1: bearing arrangement
10,110: bearing fixed seat
1101: protuberance
1102: salient point
1103: the bearing pedestal copper sheathing
11031: protuberance
1104: the holder bottom cover
12,112: bearing
14,114: cramp
16: the holder bottom cover
18,116: wear plate
20,118: the leakproof oil cap
1181: the second Oil Guide rills
1182: the first Oil Guide rills
22,120: rotor axis
122: accumulator
124: centrifugal ditch
126: escape channeling
3: fan motor
30: motor rotor
31: motor stator
32: control circuit
33: insulating lid
33a: go up insulating lid
33b: following insulating lid
Embodiment
For above and other objects of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and conjunction with figs. are described in detail below:
See also Fig. 2, it includes for the embodiment generalized section of bearing arrangement of the present invention, this bearing arrangement: a bearing fixed seat 110, bearing 112, cramp 114, wear plate 116, leakproof oil cap 118 and rotor axis 120.
This bearing fixed seat 110 is the hollow circuit cylinder pedestal of a bottom lock, and formation one protuberance 1101 that extends internally bottom this bearing fixed seat sidewall, can be used to support this bearing 112.This bearing 112 is for be cylindrical structure without exception, and the center has a through hole, be to be used for ccontaining this rotor axis 120, and this bearing 112 is ccontaining and is fixed in this bearing fixed seat 110.This cramp 114 is to be folded between this bearing 112 and this bearing fixed seat 110 bottom tab 1101; This wear plate 118 then is folded between this rotor axis 120 and this bearing fixed seat 110 bottom centre place.This leakproof oil cap 118 is disposed at this bearing 112 tops for be disc structure shown in Fig. 3 A and 3B without exception, and in order to seal this bearing arrangement top, the center has a through hole, is used for making this rotor axis 120 to pass.Wherein, this bearing 112 is to utilize powder sintered being made, and its inside then has lubricating oil to scatter therebetween with the surface.
Please consult Fig. 4 A and 4B simultaneously, design has the second Oil Guide rill 1181 on the through hole madial wall of this leakproof oil cap 118, the direction of this second Oil Guide rill 1181 is that the through hole madial wall upper limb by this leakproof oil cap 118 is tilted to down extension, can be single spiral shown in Fig. 4 A or the multi-spiral line shown in Fig. 4 B, can force the lubricating oil that throws away by this rotor axis 120 to flow back in this bearing arrangement downwards along this second Oil Guide rill 1181.
Please consult Fig. 5 A～5E simultaneously, design has the summary first Oil Guide rill 1182 radially on this leakproof oil cap 118 and the bottom surface that this bearing 112 contacts, can be radially complementary radiating ridge shown in radial radiation line shown in Fig. 5 A, the radial skew radiating ridge shown in Fig. 5 B, Fig. 5 C or the radial strut line shown in Fig. 5 D or Fig. 5 E, the lubricating oil that throws away from this rotor axis 120 radially can be guided by the capillarity of this small rill.By the first Oil Guide rill 1182 of this leakproof oil cap 118 and the design of the second Oil Guide rill 1181, can avoid lubricating oil to overflow and run off, and recycling of airtight oil circuit can be provided.
As shown in Figure 2, this bearing arrangement also is provided with an accumulator 122, centrifugal ditch 124 and escapes channeling 126.This accumulator 122 be protuberance 1101 owing to these bearing fixed seat 110 bottoms around forming, be used for storing the lubricating oil of this bearing 112.This centrifugal ditch 124 lies in that this rotor axis 120 tables cave inward and around the groove of these rotor axis 120 1 circles, and corresponding to the junction of this bearing 122 and this leakproof oil cap 118, in order to lubricating oil is radially brought into the first Oil Guide rill 1182 of these leakproof oil cap 118 bottom surfaces.This escapes channeling 126 is to be formed at this bearing 122 outer walls and bottom surface, and when this rotor axis 120 was placed in this bearing 122, these bearing 122 inner unnecessary air can be escaped channeling 126 via this and discharge outside this bearing arrangement; And when these rotor axis 120 rotation runnings, this escapes the lubricating oil oil circuit channel that channeling 126 can be used as this bearing arrangement.
See also Fig. 6, when these rotor axis 120 rotation runnings, because of action of centrifugal force outwards throws away lubricating oil, yet, lubricating oil can be forced the centrifugal ditch 124 that is delivered to this rotor axis 120 downwards because the design of the second Oil Guide rill 1181 of these leakproof oil cap 118 through hole madial walls is to be tilted to down extension by this through hole madial wall upper limb.This centrifugal ditch 124 rotatablely moves by this rotor axis 120, and ccontaining lubricating oil is wherein got rid of to the first Oil Guide rill 1182 of these leakproof oil cap 118 bottom surfaces radially.By capillarity, this first Oil Guide rill 1182 can be escaped channeling 126 to these bearing 122 outer walls with lubricating oil traction.Lubricating oil can be escaped channeling 126 following currents to the accumulator 122 that is arranged in these rotor axis 120 bottoms along this; Again the rotation by this rotor axis 120 and with the minim gap of this bearing 122, oil circuit circuit cycle system is upwards carried and finish to lubricating oil.
By being as can be known, the second Oil Guide rill 1181 of the minim gap that this bearing arrangement can be by this rotor axis 120 and this leakproof oil cap 118, the rotary power of this rotor axis 120 and this leakproof oil cap 118 endoporus sidewalls and the design of the first Oil Guide rill 1182 of these leakproof oil cap 118 bottom surfaces, lubrication oil seal can be stored in this bearing arrangement and not leak outside, and guaranteed the formation of this rotor axis 120 and the oil film of this bearing 122 interfaces, can significantly prolong this bearing arrangement life-span, and reduce the friction noise of this rotor axis 120 and this bearing 122.
See also Fig. 7, it is that aforesaid bearing arrangement 1 is applied in a embodiment on the fan motor.This fan motor 3 includes a motor rotor 30, a motor stator 31, a control circuit 32, an insulating lid 33 and this bearing arrangement 1.Wherein, the upper end of the rotor axis 120 of this bearing arrangement 1 is fixed in the center of this motor rotor 30; 31 of this motor stators be socketed in this bearing arrangement 1 bearing fixed seat 110 around on; This insulating lid 33 is coating the upper and lower both sides of this motor stator 31; This insulating lid bottom is then affixed with this control circuit 32.
Say that further these motor stator 31 upper and lower both sides are coated by insulating lid 33a on one and insulating lid 33b once respectively.Wherein, insulating lid 33a is the leakproof oil cap 118 that this bearing arrangement 1 is extended and suppressed vertically downward and fix to radial inward on this; This time insulating lid 33b also is the bearing fixed seat 110 that this bearing arrangement 1 is extended and caught on to radial inward.
See also Fig. 8, it is that aforesaid bearing arrangement 1 is applied in another embodiment on the fan motor.The bearing fixed seat 110 of present embodiment bearing arrangement 1 is to be made of plastic material, and the upper end of this bearing fixed seat 110 more forms has a plurality of salient points 1102, and these a plurality of salient points 1102 extend through the leakproof oil cap 118 of this bearing arrangement 1.At this a plurality of salient points place, use hot melting way, can this leakproof oil cap 118 is affixed with this bearing fixed seat.
See also Fig. 9, it is that aforesaid bearing arrangement 1 is applied in the 3rd embodiment on the fan motor.Bearing fixed seat 110 inside of the bearing arrangement 1 of present embodiment more are provided with a bearing pedestal copper sheathing 1103, form a protuberance 11031 in the upper end of this bearing pedestal copper sheathing 1103; Below the bearing 112 of this bearing arrangement 1, then embed a holder bottom cover 1104.The protuberance 11031 of this bearing pedestal copper sheathing 1103 is curved inwardly, can utilize the riveted joint mode to fix this leakproof oil cap 118.
Though the present invention discloses as above with a preferred embodiment; right its is not in order to qualification the present invention, those skilled in the art, without departing from the spirit and scope of the present invention; when can being used for a variety of modifications and variations, so protection scope of the present invention is as the criterion when the scope that look the accompanying Claim book.
The above only is preferred embodiment of the present invention, and the foregoing description only is to be used for explanation but not in order to limiting protection scope of the present invention, and scope of the present invention system is defined by following claims.All equalizations of doing according to claims of the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (15)
1. an oil sealing bearing system is characterized in that, comprising:
One bearing, the center are provided with a through hole;
One leakproof oil cap, it is arranged at the top of this bearing, is provided with a through hole in the center of this leakproof oil cap; And
One rotor axis is passed the through hole of this leakproof oil cap and the through hole of this bearing respectively, can rotate;
Wherein on the bottom surface of this leakproof oil cap, design the first Oil Guide rill that has radially, the lubricating oil that throws away from this rotor axis radially can be guided.
2. oil sealing bearing system as claimed in claim 1 is characterized in that: this first Oil Guide rill can be radial radiation line, radial skew radiating ridge, radially complementary radiating ridge or radial strut line.
3. oil sealing bearing system as claimed in claim 1 is characterized in that: this rotor axis is inwardly offered a centrifugal ditch on its surface corresponding to this leakproof oil cap bottom, and this centrifugal ditch is around this one week of rotor axis.
4. as claim 1 or 3 described oil sealing bearing systems, it is characterized in that: also comprise a bearing fixed seat, this bearing fixed seat is a hollow base frame, is used for ccontaining and supports this bearing, this leakproof oil cap and this rotor axis.
5. oil sealing bearing system as claimed in claim 4 is characterized in that: also form one in the outer wall of this bearing and bottom surface and escape channeling, can guide lubricating oil and flow.
6. oil sealing bearing system as claimed in claim 5 is characterized in that: also form an accumulator in this bearing fixed seat bottom, this accumulator is escaped channeling with this and is connected.
7. oil sealing bearing system as claimed in claim 4 is characterized in that: the madial wall of this bearing fixed seat bottom is toward the interior protuberance that radially extends to form, and inserts and puts a cramp between the upper end face of this protuberance and this bearing.
8. oil sealing bearing system as claimed in claim 4 is characterized in that: insert and put a wear plate between this rotor axis one end and this bearing fixed seat bottom centre place.
9. oil sealing bearing system as claimed in claim 1, it is characterized in that: also design has the second Oil Guide rill that is tilted to following extension along this madial wall upper limb on the through hole madial wall of this leakproof oil cap, this second Oil Guide rill can be single spiral or multi-spiral line, can force the lubricating oil that is thrown away by this rotor axis rotation to flow downward along this second Oil Guide rill.
10. fan motor comprises:
One bearing arrangement has a bearing, a leakproof oil cap, a rotor axis and a bearing fixed seat, and wherein the center of this bearing is provided with a through hole; This leakproof oil cap is arranged at the top of this bearing, and is provided with a through hole in the center of this leakproof oil cap; This rotor axis is passed the through hole of this leakproof oil cap and the through hole of this bearing respectively, can rotate; And this bearing fixed seat, be a hollow base frame, be used for ccontaining and support this bearing, this leakproof oil cap and this rotor axis; Wherein on the bottom surface of this leakproof oil cap, design the first Oil Guide rill that has radially, the lubricating oil that throws away from this rotor axis radially can be guided;
One motor rotor, an end of this rotor axis of the center and this bearing arrangement is connected; And
One motor stator, its be socketed in this bearing arrangement this bearing fixed seat around.
11. fan motor as claimed in claim 10 is characterized in that: also comprise an insulating lid, this insulating lid coats this motor stator, and wherein inwardly radially extend on the top of this insulating lid, and fixes this leakproof oil cap of this bearing arrangement downwards.
12. fan motor as claimed in claim 10 is characterized in that: the bearing fixed seat of this bearing arrangement is to be made of plastic material, and the upper end of this bearing fixed seat also has a plurality of salient points, and these a plurality of salient points extend through the leakproof oil cap of this bearing arrangement; At this a plurality of salient points place, use hot melting way, can this leakproof oil cap and this bearing fixed seat is affixed.
13. fan motor as claimed in claim 10 is characterized in that: the bearing fixed seat inside of this bearing arrangement also is provided with a bearing pedestal copper sheathing, forms a protuberance in the upper end of this bearing pedestal copper sheathing; This protuberance can curve inwardly, and can utilize the riveted joint mode to fix this leakproof oil cap.
14. fan motor as claimed in claim 10 is characterized in that: this first Oil Guide rill can be radial radiation line, radial skew radiating ridge, radially complementary radiating ridge or radial strut line.
15. fan motor as claimed in claim 10, it is characterized in that: also design has the second Oil Guide rill that is tilted to following extension along this madial wall upper limb on the through hole madial wall of this leakproof oil cap, this second Oil Guide rill can be single spiral or multi-spiral line, can force the lubricating oil that is thrown away by this rotor axis rotation to flow downward along this second Oil Guide rill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100733183A CN100481681C (en) | 2005-05-31 | 2005-05-31 | Fan motor, and oil sealing bearing system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100733183A CN100481681C (en) | 2005-05-31 | 2005-05-31 | Fan motor, and oil sealing bearing system thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1874119A CN1874119A (en) | 2006-12-06 |
| CN100481681C true CN100481681C (en) | 2009-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100733183A Active CN100481681C (en) | 2005-05-31 | 2005-05-31 | Fan motor, and oil sealing bearing system thereof |
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| CN (1) | CN100481681C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101165995B (en) * | 2006-10-16 | 2011-01-19 | 建凖电机工业股份有限公司 | Motor bearing positioning structure |
| CN110410345A (en) * | 2019-07-18 | 2019-11-05 | 风下电机(山东)有限公司 | A kind of high temperature resistant D. C brushless radiating fan |
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- 2005-05-31 CN CNB2005100733183A patent/CN100481681C/en active Active
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| Publication number | Publication date |
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| CN1874119A (en) | 2006-12-06 |
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