CN201666229U - Automatic grease discharging device of bearing cavity - Google Patents
Automatic grease discharging device of bearing cavity Download PDFInfo
- Publication number
- CN201666229U CN201666229U CN2010201590535U CN201020159053U CN201666229U CN 201666229 U CN201666229 U CN 201666229U CN 2010201590535 U CN2010201590535 U CN 2010201590535U CN 201020159053 U CN201020159053 U CN 201020159053U CN 201666229 U CN201666229 U CN 201666229U
- Authority
- CN
- China
- Prior art keywords
- outer sleeve
- hole
- spring
- lug boss
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000004519 grease Substances 0.000 title abstract description 10
- 238000007599 discharging Methods 0.000 title abstract 2
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 2
- 239000000314 lubricant Substances 0.000 abstract 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000001050 lubricating effect Effects 0.000 description 7
- 238000005461 lubrication Methods 0.000 description 3
- 238000007443 liposuction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
Images
Classifications
-
- Y02E10/722—
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to an automatic grease discharging device of a bearing cavity, which comprises an outer sleeve, wherein outer threads are arranged on the outer wall of the lower part of the outer sleeve, and the outer sleeve is fixed in a threaded hole of a lower end cover of a fan through the outer threads; a through hole I is arranged at the top of the outer sleeve 5, and a supporting plate is arranged in the outer sleeve; through holes II are circumferentially arranged on the supporting plate, and a hollow lug boss is arranged on the supporting plate; a spring is arranged in the hollow lug boss, and the center of the hollow lug boss and the center of the through hole I are in the same axial line; a clearance is reserved between the top of the hollow lug boss and the top of the outer sleeve, and a clearance is reserved between the outer wall of the hollow lug boss and the inner wall of the outer sleeve; and a steel ball is arranged above the spring and closes the through hole I under the action of the spring. With the utility model, when the pressure of lubricant grease inside the bearing cavity exceeds the extreme working pressure borne by a set sealing ring, excess lubricant grease can be discharged automatically without another set of grease extracting systems, thereby being favorable for prolonging the service life of the bearing.
Description
Technical field
The utility model relates to a kind of bearing bore and arranges the fat device automatically.
Background technique
Existing large-scale wind driven generator is provided with a cover automatic lubricating system, and automatic lubricating system periodically injects new lubricating grease in bearing bore, and the sealed circle of lubricating grease is enclosed in the bearing bore, and degras can't be discharged automatically.Bearing is after operation a period of time, and hoarding in the bearing bore has a large amount of degras, at this moment, need to install in addition the special liposuction system of a cover, by manually the degras in the bearing bore being discharged troublesome poeration, inefficiency, if and the degras in the bearing bore is not in time discharged, when degras runs up to when a certain amount of, it is big that the bearing bore internal pressure becomes, like this, tend to damage seal ring, finally influence bearing working life.
The model utility content
The purpose of this utility model is to overcome the above-mentioned defective that prior art exists, and provides a kind of bearing bore of high working efficiency to arrange the fat device automatically.
The utility model is achieved through the following technical solutions: it comprises outer sleeve, outer sleeve bottom outer wall is provided with outside thread, outer sleeve is fixed in by outside thread in the tapped hole of lower end cap of blower fan, outer sleeve 5 tops are provided with the through hole I, be provided with dunnage in the outer sleeve, dunnage circumferentially has the through hole II, dunnage is provided with cannular boss, be provided with spring in the cannular boss, there is the space in the center of cannular boss center and through hole I between cannular boss top and the outer sleeve top on same axis, there is the space between cannular boss outer wall and the outer sleeve inwall, the spring top is provided with steel ball, and under the effect of spring, steel ball seals the through hole I.
When bearing bore internal lubrication fat increases, the bearing bore internal pressure increases, and when reaching the ultimate pressure that the seal ring of setting can bear, steel ball can back down by lubricated fat, unnecessary lubricating grease enters in the space between outer sleeve and the cannular boss through the through hole I, and the via through holes II is discharged smoothly then.
The beneficial effects of the utility model are: when the pressure of bearing bore internal lubrication fat surpasses the maximal work pressure that the seal ring set can bear, unnecessary lubricating grease can be discharged automatically, the cover liposuction system that need not to install in addition again discharges degras, like this, helps prolonging bearing working life.
Description of drawings
Fig. 1 is the utility model example structure schematic representation;
Fig. 2 is the utility model and lower end cap assembly structure schematic representation.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
With reference to accompanying drawing, present embodiment comprises outer sleeve 5, outer sleeve 5 bottom outer walls are provided with outside thread 3, outer sleeve 5 is fixed in by outside thread 3 in the tapped hole 2 of lower end cap 1 of blower fan, outer sleeve 5 tops are provided with through hole I 6, be provided with dunnage 11 in the outer sleeve 5, dunnage 11 circumferentially has through hole II 4, and dunnage 11 is provided with cannular boss 8, is provided with spring 9 in the cannular boss 8, the center of cannular boss 8 centers and through hole I 6 is on same axis, have the space between cannular boss 8 tops and outer sleeve 5 tops, have the space between cannular boss 8 outer walls and outer sleeve 5 inwalls, spring 9 tops are provided with steel ball 7, under the effect of spring 9, steel ball 7 is with 6 sealings of through hole I.
When bearing bore internal lubrication fat increases, the bearing bore internal pressure increases, and when reaching the ultimate pressure that the seal ring of setting can bear, steel ball 7 can back down by lubricated fat, in the space that unnecessary lubricating grease process through hole I 6 enters between outer sleeve 5 and the cannular boss 8, via through holes II 4 is discharged smoothly then.
More than be a kind of mode of execution of the present utility model, a preferred demonstration example.The scope that the utility model patent application is asked for protection has more than and is limited to described mode of execution.All and technological scheme present embodiment equivalence all belongs to protection domain of the present utility model.
Claims (1)
1. a bearing bore is arranged the fat device automatically, it is characterized in that, comprise outer sleeve, outer sleeve bottom outer wall is provided with outside thread, outer sleeve is fixed in by outside thread in the tapped hole of lower end cap of blower fan, outer sleeve (5) top is provided with the through hole I, is provided with dunnage in the outer sleeve, and dunnage circumferentially has the through hole II, dunnage is provided with cannular boss, be provided with spring in the cannular boss, there is the space in the center of cannular boss center and through hole I between cannular boss top and the outer sleeve top on same axis, there is the space between cannular boss outer wall and the outer sleeve inwall, the spring top is provided with steel ball, and under the effect of spring, steel ball seals the through hole I.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201590535U CN201666229U (en) | 2010-04-15 | 2010-04-15 | Automatic grease discharging device of bearing cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201590535U CN201666229U (en) | 2010-04-15 | 2010-04-15 | Automatic grease discharging device of bearing cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201666229U true CN201666229U (en) | 2010-12-08 |
Family
ID=43267188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201590535U Expired - Lifetime CN201666229U (en) | 2010-04-15 | 2010-04-15 | Automatic grease discharging device of bearing cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201666229U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618402A (en) * | 2013-11-30 | 2014-03-05 | 南阳防爆集团股份有限公司 | Automatic grease discharging structure of motor rolling bearing |
-
2010
- 2010-04-15 CN CN2010201590535U patent/CN201666229U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618402A (en) * | 2013-11-30 | 2014-03-05 | 南阳防爆集团股份有限公司 | Automatic grease discharging structure of motor rolling bearing |
| CN103618402B (en) * | 2013-11-30 | 2016-09-28 | 南阳防爆集团股份有限公司 | Automatically row's fat structure of motor rolling bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101208 |
|
| CX01 | Expiry of patent term |