CN201772064U - Sealing element improved structure for bearing pedestal - Google Patents
Sealing element improved structure for bearing pedestal Download PDFInfo
- Publication number
- CN201772064U CN201772064U CN 201020500067 CN201020500067U CN201772064U CN 201772064 U CN201772064 U CN 201772064U CN 201020500067 CN201020500067 CN 201020500067 CN 201020500067 U CN201020500067 U CN 201020500067U CN 201772064 U CN201772064 U CN 201772064U
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- CN
- China
- Prior art keywords
- bearing support
- bearing
- bearing pedestal
- sidewall
- outermost surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a sealing element improved structure for a bearing pedestal. A rotation axis is arranged on the bearing pedestal through a bearing; a sealing ring sleeved on the rotation axis corresponds to an inner hole on the side wall of the bearing pedestal; a plurality of parallel annular grooves are formed on the inner hole and are matched with a plurality of parallel flange rings; the heights of the grooves are sequentially reduced from inside to outside; the bottom of the groove on the outermost layer on the inner hole of the bearing pedestal on a vertical section is inclined towards the inner side of the side wall of the bearing pedestal; an oil return pipe is arranged from the bottom of the groove on the outmost layer at the bottom of the inner hole to the inner side of the side wall and is communicated with the bottoms of the grooves of all layers and an inner chamber of the bearing pedestal; the inclined groove structure on the outmost layer can store lubricating oil leaked to the structure when the lubricating oil rotates along with the sealing ring and prevents the oil from flowing out; the oil return pipe is arranged and is communicated with the bottoms of the grooves of all layers on the inner hole of the bearing pedestal and the inner chamber of the bearing pedestal, thereby guiding the leaked oil to flow back timely; and the sealing element improved structure combined by the inclined groove structure on the outmost layer and the oil return pipe can effectively prevent the lubricating oil from leaking.
Description
Technical field
The utility model relates to bearing support, relates in particular to a kind of Sealing of bearing support.
Background technique
The thin oil lubricant bearing support of centrifuge is the seal chamber of a hollow, have endoporus on the sidewall, rotatingshaft is horizontally through bearing support from endoporus, Bearing Installation by inside cavity is on bearing support, seal ring that is fixed on the rotary bearing of configuration between rotatingshaft and the endoporus, the a plurality of parallel flanged rings of seal ring outer rim upper process, with endoporus on the multiple tracks parallel ring connected in star offered be complementary, form mazy sealing configuration between the two.
But in use, during the oil lubrication cooling, because bearing high speed rotating, making lubricating fluid produce splashes, still there is part fluid to enter in the clearance space between inner hole of bearing seat and the seal ring, and along with the rotation of seal ring is run to the bearing support outside, caused bearing support the phenomenon of oil leakage to occur.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of bearing support Sealing structure-improved that can prevent effectively that lubricant oil from revealing from fitting surface between seal ring and the inner hole of bearing seat.
The utility model is achieved through the following technical solutions:
A kind of Sealing structure-improved of bearing support, on bearing support, the seal ring that is sleeved on the rotatingshaft is corresponding with the endoporus on the bearing support sidewall by Bearing Installation for rotatingshaft, and the bearing support sidewall has disposed inner chamber one side of bearing for inboard, a side that does not dispose bearing is the outside
Offer multiple tracks parallel ring connected in star on the endoporus, be complementary with a plurality of parallel flanges rings of seal ring outer rim upper process, groove height from inside to outside, reduce in turn,
It is characterized in that:
Outermost surface groove bottom land tilts to the bearing support inside sidewalls on the inner hole of bearing seat on the vertical cross-section,
Outermost surface groove bottom land place by the endoporus bottom offers return tube to inside sidewalls, and return tube is communicated with each layer groove bottom land and bearing support inner chamber.
The gradient design of outermost surface groove bottom land, help rotating the lubricating oil savings that is leaked to endoporus outermost surface groove bottom land with seal ring and throw away bearing support at the bottom land place rather than by seal ring, the fluid of savings is again by being opened in the return tube to the bottom land backflow of each internal layer groove, until being back to the bearing support inner chamber there.
For guaranteeing to reflux preferably effect, take into account the inherent structure of existing bearing support simultaneously, the angle of inclination of outermost surface groove bottom land is generally 15～45 degree, is preferably 30 degree.
Further again, the leakage lubricating oil leakage lubricating oil less, that store between the groove on internal layer, seal ring and the inner hole of bearing seat more of considering general outermost surface groove is many more, therefore, return tube can be designed to that an end is big, an end is little, opening diameter minimum on the outermost surface groove, opening diameter maximum on the inside sidewalls more helps revealing the timely backflow of fluid.
Same, smooth and easy for guaranteeing that fluid refluxes, return tube can be designed to tilt towards inside sidewalls on vertical cross-section, is positioned at opening on the endoporus outermost surface groove and is higher than opening on the bearing support inside sidewalls.
The beneficial effects of the utility model are: the outermost surface groove structure of inclination, and can store with seal ring and rotate the lubricating oil that is leaked to the there, stop the fluid outflow; Offer return tube and be communicated with each layer groove bottom land and bearing support inner chamber on the inner hole of bearing seat, can guide the leakage fluid that is stored in bottom land in time to reflux; The Sealing structure-improved that both are combined can effectively prevent leaking of lubricant oil.
Description of drawings
Fig. 1 is the seal configuration schematic representation of existing bearing support
Fig. 2 is the Sealing structure-improved schematic representation of the utility model bearing support
Among Fig. 1-2: 1 is seal ring, and 2 is the bearing support sidewall, and 2-1 is an endoporus, and 2-2 is the outermost surface groove, and 2-3 is a return tube, and 3 is rotatingshaft, and 4 are existing bearing support sidewall, and 4-1 is existing endoporus, and 4-2 is existing outermost surface groove, and 5 is bearing.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
The thin oil lubricant bearing support of centrifuge is the seal chamber of a hollow, have endoporus 4-1 on the existing bearing support sidewall 4, rotatingshaft 3 is horizontally through bearing support from existing endoporus 4-1, bearing 5 by inside cavity is installed on the bearing support, seal ring 1 that is fixed on the rotary bearing 5 of configuration between rotatingshaft 3 and the existing endoporus 4-1, the a plurality of parallel flanged rings of seal ring 1 outer rim upper process, with endoporus 4-1 on the multiple tracks parallel ring connected in star offered be complementary, form mazy sealing configuration between the two.
But in use, during the oil lubrication cooling, because bearing 5 high speed rotating, making lubricating fluid produce splashes, still there is part fluid to enter in the clearance space that has now between inner hole of bearing seat 4-1 and the seal ring 1, and along with the rotation of seal ring 1 is run to the bearing support outside, caused bearing support the phenomenon of oil leakage, direction shown in arrow among Fig. 1 to occur.
The Sealing structure-improved of the utility model bearing support, inner hole of bearing seat 2-1 on the vertical cross-section goes up outermost surface groove 2-2 bottom land to the 2 inboard inclinations of bearing support sidewall, the angle of inclination is 30 degree, helps rotating the lubricating oil savings that is leaked to 1 outermost surface groove 2-2 with seal ring 1 and throws away bearing support at bottom land 2-2 place rather than by seal ring 1; Outermost surface groove 2-2 bottom land place by endoporus 2 bottoms offers return tube 2-3 to sidewall 2 inboards, and return tube 2-3 is the ladder pipe that an end is big, an end is little, the opening diameter minimum on outermost surface groove 2-1, the opening diameter maximum on sidewall 2 inboards; Towards sidewall 2 inboard inclinations, the angle of inclination is 30 degree to return tube 2-3 on vertical cross-section.Return tube 2-3 is communicated with each layer groove bottom land and bearing support inner chamber, makes savings reflux to the bearing support inner chamber by the return tube 2-3 that is opened in the there at the fluid of bottom land.Lubricant oil backflow direction is shown in arrow among the figure.
Claims (4)
1. the Sealing structure-improved of a bearing support, rotatingshaft (3) is installed on the bearing support by bearing (5), the seal ring (1) that is sleeved on the rotatingshaft (3) is corresponding with the endoporus (2-1) on the bearing support sidewall (2), bearing support sidewall (2) has disposed inner chamber one side of bearing (5) for inboard, a side that does not dispose bearing (5) is the outside
Offer multiple tracks parallel ring connected in star on the endoporus (2-1), be complementary with a plurality of parallel flanges rings of seal ring (1) outer rim upper process, groove height from inside to outside, reduce in turn,
It is characterized in that:
Inner hole of bearing seat on the vertical cross-section (2-1) is gone up outermost surface groove (2-2) bottom land to the inboard inclination of bearing support sidewall (2),
Outermost surface groove (2-2) bottom land place by endoporus (2) bottom offers return tube (2-3) to sidewall (2) inboard, and return tube (2-3) is communicated with each layer groove bottom land and bearing support inner chamber.
2. bearing support Sealing structure-improved according to claim 1 is characterized in that: the angle of inclination of described outermost surface groove (2-2) bottom land is 30 degree.
3. bearing support Sealing structure-improved according to claim 1 is characterized in that: described return tube (2-3) end is big, an end is little, the opening diameter minimum on outermost surface groove (2-2), the opening diameter maximum on sidewall (2) inboard.
4. bearing support Sealing structure-improved according to claim 1 is characterized in that: described return tube (2-3) is higher than opening on sidewall (2) inboard at the opening on the outermost surface groove (2-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020500067 CN201772064U (en) | 2010-08-20 | 2010-08-20 | Sealing element improved structure for bearing pedestal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020500067 CN201772064U (en) | 2010-08-20 | 2010-08-20 | Sealing element improved structure for bearing pedestal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201772064U true CN201772064U (en) | 2011-03-23 |
Family
ID=43751906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020500067 Expired - Fee Related CN201772064U (en) | 2010-08-20 | 2010-08-20 | Sealing element improved structure for bearing pedestal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201772064U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606274A (en) * | 2012-04-10 | 2012-07-25 | 龙口市汽车风扇离合器厂 | Dustproof electromagnetic fan clutch |
| CN102797678A (en) * | 2011-05-26 | 2012-11-28 | 株式会社神户制钢所 | Shaft sealing structure and rotary fluid machine |
-
2010
- 2010-08-20 CN CN 201020500067 patent/CN201772064U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797678A (en) * | 2011-05-26 | 2012-11-28 | 株式会社神户制钢所 | Shaft sealing structure and rotary fluid machine |
| CN102606274A (en) * | 2012-04-10 | 2012-07-25 | 龙口市汽车风扇离合器厂 | Dustproof electromagnetic fan clutch |
| CN102606274B (en) * | 2012-04-10 | 2014-04-16 | 龙口中宇汽车风扇离合器有限公司 | Dustproof electromagnetic fan clutch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110323 Termination date: 20150820 |
|
| EXPY | Termination of patent right or utility model |