CN2386247Y - Oil-storage structure of self-lubricating bearing - Google Patents
Oil-storage structure of self-lubricating bearing Download PDFInfo
- Publication number
- CN2386247Y CN2386247Y CN 99207297 CN99207297U CN2386247Y CN 2386247 Y CN2386247 Y CN 2386247Y CN 99207297 CN99207297 CN 99207297 CN 99207297 U CN99207297 U CN 99207297U CN 2386247 Y CN2386247 Y CN 2386247Y
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- self
- lubricating bearing
- oil
- bearing
- stationary axle
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Abstract
The utility model relates to an oil-storing structure for a self-lubricating bearing. The utility model comprises a cylindrical fixed axle of an outer frame, wherein, the cylindrical fixed axle of the outer frame is provided with a first end and a second end, the inner edge of the first end is provided with an annular fixed sheet with a round hole. A round hole of a fixed axle of the center of a blade is larger than the fixed axle of the center of the blade. The inner edge between the first end and the second end is provided with at least one concave pit, the inner edge of a cylindrical self-lubricating bearing is sheathed with a main axle of a fan, and the outer edge of the self-lubricating bearing is sheathed with the inner edge of the fixed axle of the outer frame. One end of the self-lubricating bearing in abutted on one side of the annular fixed sheet, the outer edge is connected with the first concave pit to form oil-storing space, an oil-sealing ring is matched with the other side of the annular fixed sheet and is sheathed with the fixed axle of the center of the blade, and a sealing cover is matched with the second end of the fixed axle of the outer frame.
Description
The utility model relates to a kind of oil-bearing structure of self-lubricating bearing, particularly relates to a kind ofly can holding the lubricant oil that self-lubricating bearing disengages, and improves the self-lubricating bearing oil-bearing structure in self-lubricating bearing life-span.
Self-lubricating bearing (Self-Lubricating Bearing) utilizes the manufacture method of powder metallurgy, with metal powder and the high hot-cast mold forming of mix lubricant high pressure.The characteristic of self-lubricating bearing is to be when it is heated, and the oiling agent that it contained can be disengaged, and temperature can suck back the part oiling agent when reducing.Because the characteristic of above-mentioned self-lubricating bearing, self-lubricating bearing need not add lubricated wet goods maintenance action, and self-lubricating bearing can constitute various sizes and shape, therefore be widely used bearing as the flabellum central fixed shaft, in particular for precision type instrument, in the radiation fan such as computer or microprocessing unit (CPU).
Please refer to Fig. 1, it is the generalized section of the bearing structure of existing fan.Flabellum body 201 is fixed on the flabellum central fixed shaft 207, and flabellum body 201 comprises flabellum and magnetite (not illustrating) fixed thereon, the position of flabellum central fixed shaft 207 during in order to the rotation of fixing flabellum.It is one cylindric in order to the fixing usefulness of self-lubricating bearing 204 that housing stationary axle 203 is; It is one cylindric that self-lubricating bearing 204 also is, its inner rim and 207 sockets of flabellum central fixed shaft, its outer rim then with 203 sockets of housing stationary axle.In general, self-lubricating bearing 204 adopts drive fit with cooperating of flabellum central fixed shaft 207, then adopts interference fit between self-lubricating bearing 207 and the housing stationary axle 203.Oil seal ring 202 is socketed on the outer rim root of flabellum central fixed shaft 207, and clasp 205 then is buckled in the groove 208 of flabellum central fixed shaft 207 ends.The material of general oil seal ring 202 is a rubber.In addition, the end of flabellum central fixed shaft 207 also comprises a serum cap 206, in order to seal an end of housing stationary axle 203, avoids lubricant oil to leak outside.
The bearing structure of existing fan, owing to consider spatial constraints and reduce the resistance that fan rotates, so the size of oil seal ring 202 can be restricted.When fan used, flabellum body 201, flabellum central fixed shaft 207, oil seal ring 202 and clasp 205 constituted a rotating main body and rotate jointly.Position when flabellum central fixed shaft 207 is utilized self-lubricating bearing 204 supports and fixed its rotation; and itself and 204 of self-lubricating bearings have a joint clearance; with so that when rotation the lubricant oil that disengages because of being heated of self-lubricating bearing 204; form oil film protection flabellum central fixed shaft 207 during this time in the crack, and the material after the abrasion can be discharged smoothly.During 207 rotations of flabellum central fixed shaft, the lubricant oil that self-lubricating bearing 204 is disengaged can leak towards flabellum body 201 and 206 liang of directions of capping.For the lubricant oil that capping 206 directions are leaked, because capping 206 makes self-lubricating bearing 204 and 206 of cappings form a confined space, so lubricant oil can't let out.Yet the lubricant oil to oil seal ring 202 directions are leaked can suffer that oil seal ring 202 stops, because the relation of centrifugal force, lubricant oil will be thrown to the inner peripheral surface of housing stationary axle 203, almost completely runs off, and can't allow self-lubricating bearing 204 suck back.Thereby the lubricant oil that self-lubricating bearing 204 includes reduces gradually, causes lack of lubrication, increases wearing and tearing, reduces the life-span of fan.
The purpose of this utility model is to provide a kind of oil-bearing structure of self-lubricating bearing, in order to the control lubricant oil that self-lubricating bearing disengaged, makes it to be difficult for running off.
Another purpose of the present utility model is to provide a kind of oil-bearing structure of self-lubricating bearing, between self-lubricating bearing and housing stationary axle, form airtight oil storage space, not only can hold the lubricant oil that self-lubricating bearing disengages, reflux in the time of can also allowing its cooling, to improve the working life of fan.
The purpose of this utility model is to realize like this, a kind of oil-bearing structure of self-lubricating bearing promptly is provided, be applied to a self-lubricating bearing, this self-lubricating bearing is applied to a flabellum central fixed shaft, the oil-bearing structure of this self-lubricating bearing comprises: a housing stationary axle, slightly be one cylindric, this housing stationary axle has one first end and one second end, the inner edge of this first end of this housing stationary axle has a ring-like fixed plate, this ring-like fixed plate has a circular hole, with this Circularhole diameter of holding this flabellum central fixed shaft diameter greater than this flabellum central fixed shaft, this first end of this housing stationary axle and the inner edge between this second end also have at least one first depression; One self-lubricating bearing, slightly be one cylindric, the main shaft socket of the inner edge of this self-lubricating bearing and this fan, the inner edge socket of the outer rim of this self-lubricating bearing and this housing stationary axle, one end of this self-lubricating bearing withstands a side of this ring-like fixed plate, and the outer rim of this self-lubricating bearing engages with this first depression and constitutes an oil storage space; One oil seal ring is disposed at the opposite side of this ring-like fixed plate, and with this flabellum central fixed shaft socket; One capping is disposed at this second end of this housing stationary axle.
The utility model also provides a kind of oil-bearing structure of self-lubricating bearing, be applied to a self-lubricating bearing, and this self-lubricating bearing is applied to a flabellum central fixed shaft, the oil-bearing structure of this self-lubricating bearing comprises: a housing stationary axle, slightly be one cylindric, this housing stationary axle has one first end and one second end, the inner edge of this first end of this housing stationary axle has a ring-like fixed plate, this ring-like fixed plate has a circular hole, with this Circularhole diameter of holding this flabellum central fixed shaft diameter greater than this flabellum central fixed shaft; One self-lubricating bearing slightly is one cylindric, the main shaft socket of the inner edge of this self-lubricating bearing and this fan, the outer rim of this self-lubricating bearing then with the inner edge socket of this housing stationary axle, an end of this self-lubricating bearing withstands a side of this ring-like fixed plate; One oil seal ring is disposed at the opposite side of this ring-like fixed plate, and with this flabellum central fixed shaft socket; And a capping, be disposed at this second end of this housing stationary axle.
The utility model also provides a kind of oil-bearing structure of self-lubricating bearing, be applied to a self-lubricating bearing, and this self-lubricating bearing is applied to a flabellum central fixed shaft, the oil-bearing structure of this self-lubricating bearing comprises: a housing stationary axle, slightly be one cylindric, this housing stationary axle has one first end and one second end, and this first end of this housing stationary axle and the inner edge between this second end also have at least one first depression; One oil seal ring is disposed at this first end of this housing stationary axle, and with this flabellum central fixed shaft socket; One capping is disposed at this second end of this housing stationary axle; An and self-lubricating bearing, slightly be one cylindric, be disposed between this oil seal ring and this capping, the main shaft socket of the inner edge of this self-lubricating bearing and this fan, the outer rim of this self-lubricating bearing then with the inner edge socket of this housing stationary axle, the outer rim of this self-lubricating bearing engages with this first depression and constitutes an oil storage space.
According to a preferred embodiment that proposes of the present utility model, because the design of ring-like fixed plate is arranged, and oil seal ring directly is disposed at the outside of ring-like fixed plate, so the lubricant oil that self-lubricating bearing leaks to flabellum body direction is difficult for running off.And since the design of oil storage space make the lubricant oil that self-lubricating bearing disengaged can be contained in the oil storage space, and can when it is lowered the temperature, it is back in the self-lubricating bearing.By above-mentioned design, the lubricant oil that makes the oil-bearing structure of self-lubricating bearing of the present utility model effectively to control self-lubricating bearing to be disengaged makes the lubricant oil content of self-lubricating bearing be difficult for reducing, and can prolong the working life of fan.
Below in conjunction with accompanying drawing, describe embodiment of the present utility model in detail, wherein:
Fig. 1 is the sectional view of the bearing structure of existing fan;
Fig. 2 is the oil-bearing structure sectional view of a kind of self-lubricating bearing of the utility model one preferred embodiment.
Please refer to Fig. 2, it is the oil-bearing structure generalized section of a kind of self-lubricating bearing of the utility model one preferred embodiment.Bearing structure main member of the present utility model comprises: flabellum body 101, flabellum central fixed shaft 107, housing stationary axle 103, self-lubricating bearing 104, oil seal ring 102, capping 106 and clasp 105.The magnetite (not illustrating) that flabellum body 101 generally comprises flabellum and is fixed thereon, flabellum body 101 is fixed in the root (position that 110a indicates among the figure) of flabellum central fixed shaft 107, the end of flabellum central fixed shaft 107 (position that 110b indicates among the figure) then has a groove 108, in order to the usefulness as clasp 105 fastenings.Oil seal ring 102 is inserted in the position of flabellum central fixed shaft 107 close root 110a earlier during assembling and constitutes a cell cube.The material of oil seal ring 102 is such as being rubber.
It is one rough cylindric that housing stationary axle 103 in the utility model is, near its first end 112a, dispose a ring-like fixed plate 114, there is a circular hole 116 in the central authorities of ring-like fixed plate 114, and its slightly larger in diameter is in flabellum central fixed shaft 107, in order to hold flabellum central fixed shaft 107.The effect of this ring-like fixed plate 114 has two: one for fixedly self-lubricating bearing 104 is in the position of housing stationary axle 103, and the path that another disengages for restriction self-lubricating bearing 104 lubricant oil only can be disengaged by the circular hole 116 and the gap of flabellum central fixed shaft 107.Housing stationary axle 103 also designs the inner edge that has a depression 118, the depression 118 shown in the figure to be shaped as at housing stationary axle 103 and forms a stepped profile on the inner edge between its first end 112a and the second end 112b, and forms depression 118.
It is rough cylindric that self-lubricating bearing 104 also is, first with the outer rim of self-lubricating bearing 104 and the inner edge socket of housing stationary axle 103 during assembling, and make an end of self-lubricating bearing 104 withstand ring-like fixed plate 114.Then, the flabellum central fixed shaft 107 that will assemble again, flabellum body 101 and oil seal ring 102 constitute assembling with self-lubricating bearing 104, promptly insert the inner edge of self-lubricating bearing 104 with the end 110b of flabellum central fixed shaft 107.Simultaneously clasp 105 is buckled in the groove 108, make the separation that can not come off of member after the combination.Insert the second end 112b of lubricant oil at last in housing stationary axle 103, and will be to covering the 106 second end 112b that fill in housing stationary axle 103, capping 106 materials are such as being rubber.At this moment, a side of ring-like fixed plate 114 engages with self-lubricating bearing 104, and opposite side then engages with oil seal ring 102.The outer rim of self-lubricating bearing 104 with the cooperating of inner edge of housing stationary axle 103 can adopt interference fit, self-lubricating bearing 104 inner edges can adopt drive fit with cooperating then of flabellum central fixed shaft 107 outer rims.
Outer rim at self-lubricating bearing 104 can design the depression 118 of depression 120 corresponding to housing stationary axle 103 equally, and the outer rim that the depression 120 shown in the figure is shaped as at self-lubricating bearing 104 forms a stepped profile, and forms depression 120.After self-lubricating bearing 103 made up with housing stationary axle 104, depression 118 cooperatively interacted with depression 120 and forms an oil storage space 122, is a ring-like space and is centered around self-lubricating bearing 104 outer rims.The front end of self-lubricating bearing 104 also can form an oblique angle 124, not only helps the assembling of self-lubricating bearing 104 and housing stationary axle 103, also can form another oil storage space 126 simultaneously.Though oil storage space 122 is the stepped profile by housing stationary axle 103 inner edges in the present embodiment, the annular oil storage space that stepped profile constituted with self-lubricating bearing 104 outer rims, yet be familiar with should knowing of this technology: the shape of oil storage space 122 also is defined in disclosed structure in the present embodiment, can constitute an oil storage space as long as form a depression between self-lubricating bearing 104 and housing stationary axle 103.Such as can be at interior round-formed one or more annular grooves or a plurality of shrinkage pool of housing stationary axle, the outer rim of self-lubricating bearing be smooth periphery then, also can form oil storage space after the socket.Can certainly form groove or shrinkage pool in the self-lubricating bearing outer rim, cooperate with housing stationary axle inner edge to form oil storage space.Compound mode miscellaneous is arranged, seldom give unnecessary details, yet it all should not break away from spiritual scope of the present utility model at this, should be still within protection domain of the present utility model.
By the above-mentioned oil-bearing structure that discloses the utility model self-lubricating bearing as can be known:
1. because the design of annular fixed plate, make the path of the oil leak that self-lubricating bearing disengages in the gap of itself and flabellum central fixed shaft be restricted.Lubricant oil only can be leaked to flabellum body direction by the gap of the circular hole and the flabellum center fixation between centers of annular fixed plate, perhaps to the end leakage of flabellum central fixed shaft.Yet the opposite side of annular fixed plate disposes oil seal ring, can prevent oil leak, as for flabellum center fixation shaft end, has capping to stop and also can not cause Lubricants to leak.
2. whether the lubricant oil that is added between general capping and self-lubricating bearing can be back in the self-lubricating bearing, causes the how much relevant of lubricant oil and self-lubricating bearing area of contact with the amount of lubricant oil, the ornaments direction of fan.Therefore, the backflow effect of this part is limited.Yet in the disclosed structure of the utility model, the design of oil storage space makes is held the lubricant oil that self-lubricating bearing disengages wherein when being heated, and can allow self-lubricating bearing suck back when cooling, keeps the lubricant oil content of self-lubricating bearing.
Because above-mentioned two kinds of designs make structure of the present utility model promote the working life of fan greatly, learn by the reality test, about 30000 hours of the life-span of existing fan, have the fan that the utility model improves structure, reach unexpectedly more than 50000 hours working life.
In sum, the oil-bearing structure of the utility model self-lubricating bearing has following advantages at least:
1. the oil-bearing structure of the utility model self-lubricating bearing can effectively be controlled the profit that self-lubricating bearing disengages Lubricating oil makes it to be difficult for running off more effective lubricating oil content of keeping self-lubricating bearing.
2. the oil-bearing structure of the utility model self-lubricating bearing forms between self-lubricating bearing and housing fixed axis Airtight oil storage space not only can be held the lubricating oil that self-lubricating bearing disengages, in the time of can also allowing its cooling Reflux, effectively keep the lubricating oil content of self-lubricating bearing, to improve the service life of fan.
Claims (17)
1. the oil-bearing structure of a self-lubricating bearing, be applied to a self-lubricating bearing, described self-lubricating bearing is applied to a flabellum central fixed shaft, it is characterized in that, the oil-bearing structure of described self-lubricating bearing comprises: a housing stationary axle, slightly be one cylindric, described housing stationary axle has one first end and one second end, the inner edge of described first end of described housing stationary axle has a ring-like fixed plate, described ring-like fixed plate has a circular hole, with the described Circularhole diameter that the holds described flabellum central fixed shaft diameter greater than described flabellum central fixed shaft, described first end of described housing stationary axle and the inner edge between described second end also have at least one first depression; One self-lubricating bearing, slightly be one cylindric, the main shaft socket of the inner edge of described self-lubricating bearing and described fan, the inner edge socket of the outer rim of described self-lubricating bearing and described housing stationary axle, one end of described self-lubricating bearing withstands a side of described ring-like fixed plate, and the outer rim of described self-lubricating bearing engages with described first depression and constitutes an oil storage space; One oil seal ring is disposed at the opposite side of described ring-like fixed plate, and with the socket of described flabellum central fixed shaft; One capping is disposed at described second end of described housing stationary axle.
2. the oil-bearing structure of self-lubricating bearing as claimed in claim 1 is characterized in that, also comprises a clasp, is buckled in the described flabellum central fixed shaft between described self oiling bearing and the described capping.
3. the oil-bearing structure of self-lubricating bearing as claimed in claim 1 is characterized in that, the end that described self-lubricating bearing withstands described ring-like fixed plate has an oblique angle, forms a space between described self oiling bearing and the described housing stationary axle.
4. the oil-bearing structure of self-lubricating bearing as claimed in claim 1 is characterized in that, described first depression is included in first ring groove of housing stationary axle inner edge.
5. the oil-bearing structure of self-lubricating bearing as claimed in claim 1 is characterized in that, the outer rim of described self-lubricating bearing also comprises at least one second depression, corresponding to described first depression, and cooperates the common described oil storage space that forms with described first depression.
6. the oil-bearing structure of self-lubricating bearing as claimed in claim 5, it is characterized in that, described first depression forms a stepped profile at the inner edge of described housing stationary axle, and described second depression is that the outer rim at described self-lubricating bearing forms another stepped profile, and described first depression and described second depression cooperatively interact and constitute ring-like oil storage space.
7. the oil-bearing structure of self-lubricating bearing as claimed in claim 1 is characterized in that, described second depression is included in a groove of described self-lubricating bearing outer rim.
8. the oil-bearing structure of a self-lubricating bearing is applied to a self-lubricating bearing, and described self-lubricating bearing is applied to a flabellum central fixed shaft, it is characterized in that, the oil-bearing structure of described self-lubricating bearing comprises:
One housing stationary axle, slightly be one cylindric, described housing stationary axle has one first end and one second end, the inner edge of described first end of described housing stationary axle has a ring-like fixed plate, described ring-like fixed plate has a circular hole, with the described Circularhole diameter that the holds described flabellum central fixed shaft diameter greater than described flabellum central fixed shaft;
One self-lubricating bearing slightly is one cylindric, the main shaft socket of the inner edge of described self-lubricating bearing and described fan, and the inner edge socket of the outer rim of described self-lubricating bearing and described housing stationary axle, an end of described self-lubricating bearing withstands a side of described ring-like fixed plate;
One oil seal ring is disposed at the opposite side of described ring-like fixed plate, and with the socket of described flabellum central fixed shaft; And
One capping is disposed at described second end of described housing stationary axle.
9. the oil-bearing structure of self-lubricating bearing as claimed in claim 8 is characterized in that, also comprises a clasp, is buckled in the described flabellum central fixed shaft between described self-lubricating bearing and the described capping.
10. the oil-bearing structure of self-lubricating bearing as claimed in claim 8 is characterized in that, the end that described self-lubricating bearing withstands described ring-like fixed plate has an oblique angle, forms a space between described self-lubricating bearing and the described housing stationary axle.
11. the oil-bearing structure of a self-lubricating bearing is applied to a self-lubricating bearing, described self-lubricating bearing is applied to a flabellum central fixed shaft, it is characterized in that, the oil-bearing structure of described self-lubricating bearing comprises:
One housing stationary axle slightly is one cylindric, and described housing stationary axle has one first end and one second end, and described first end of described housing stationary axle and the inner edge between described second end also have at least one first depression;
One oil seal ring is disposed at described first end of described housing stationary axle, and with the socket of described flabellum central fixed shaft;
One capping is disposed at described second end of described housing stationary axle; And
One self-lubricating bearing, slightly be one cylindric, be disposed between described oil seal ring and the described capping, the main shaft socket of the inner edge of described self-lubricating bearing and described fan, the outer rim of described self-lubricating bearing then with the inner edge socket of described housing stationary axle, the outer rim of described self-lubricating bearing engages with described first depression and constitutes an oil storage space.
12. the oil-bearing structure of self-lubricating bearing as claimed in claim 11 is characterized in that, also comprises a clasp, is buckled in the described flabellum central fixed shaft between described self-lubricating bearing and the described capping.
13. the oil-bearing structure of self-lubricating bearing as claimed in claim 11 is characterized in that, described self-lubricating bearing has an oblique angle near the part of described first end of described housing stationary axle, forms a space between described self-lubricating bearing and the described housing stationary axle.
14. the oil-bearing structure of self-lubricating bearing as claimed in claim 11 is characterized in that, described first depression is included in a ring groove of housing stationary axle inner edge.
15. the oil-bearing structure of self-lubricating bearing as claimed in claim 11 is characterized in that, the outer rim of described self-lubricating bearing also comprises at least one second depression, corresponding to described first depression, and cooperates the common described oil storage space that forms with described first depression.
16. the oil-bearing structure of self-lubricating bearing as claimed in claim 15, it is characterized in that, described first depression forms a stepped profile at the inner edge of described housing stationary axle, and described second depression forms another stepped profile in the outer rim of described self-lubricating bearing, and described first depression and described second depression cooperatively interact and constitute ring-like described oil storage space.
17. the oil-bearing structure of self-lubricating bearing as claimed in claim 11 is characterized in that, described second depression is included in a groove of described self-lubricating bearing outer rim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99207297 CN2386247Y (en) | 1999-04-12 | 1999-04-12 | Oil-storage structure of self-lubricating bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99207297 CN2386247Y (en) | 1999-04-12 | 1999-04-12 | Oil-storage structure of self-lubricating bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2386247Y true CN2386247Y (en) | 2000-07-05 |
Family
ID=34001335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99207297 Expired - Lifetime CN2386247Y (en) | 1999-04-12 | 1999-04-12 | Oil-storage structure of self-lubricating bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2386247Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110399A (en) * | 2013-04-16 | 2014-10-22 | 奇鋐科技股份有限公司 | Oil bearing and oil bearing fixing structure |
-
1999
- 1999-04-12 CN CN 99207297 patent/CN2386247Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110399A (en) * | 2013-04-16 | 2014-10-22 | 奇鋐科技股份有限公司 | Oil bearing and oil bearing fixing structure |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CX01 | Expiry of patent term |