CN201568457U - Improvement of oil-throwing preventing device for end cover in radial bearing of water turbine generator - Google Patents
Improvement of oil-throwing preventing device for end cover in radial bearing of water turbine generator Download PDFInfo
- Publication number
- CN201568457U CN201568457U CN2009202598476U CN200920259847U CN201568457U CN 201568457 U CN201568457 U CN 201568457U CN 2009202598476 U CN2009202598476 U CN 2009202598476U CN 200920259847 U CN200920259847 U CN 200920259847U CN 201568457 U CN201568457 U CN 201568457U
- Authority
- CN
- China
- Prior art keywords
- bearing
- oil
- main shaft
- end cover
- improvement
- 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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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2380/00—Electrical apparatus
- F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
Abstract
The utility model relates to the improvement of an oil-throwing preventing device for an end cover in a radial bearing of a water turbine generator, in particular to the improvement of the oil-throwing preventing device of the end cover of the radial bearing in the water turbine generator. An original bearing seat, a bearing cover and a bearing end cover blank continue to be used, which means that the installation size and the dimensional size of the bearing are not changed; on the above basis, the oil sealing by a woolen felt is canceled and the structures of an oil sealing ring and an oil throwing ring are adopted, so that a main shaft under the position of the end cover is separated form lubricating oil, thereby thoroughly preventing the lubricating oil from being thrown out along the main shaft. With simple structure, low renovating cost, easy implementation and convenient installation as well as maintenance, the utility model can be widely applied for various radial bearings.
Description
Technical field
The utility model relates to hydraulic turbine generator, particularly the improvement of the anti-rejection oily device of radial bearing end cap in the horizontal hydrogenerator.
Background technique
Horizontal hydrogenerator often will be used radial bearing.As shown in Figure 2, the radial bearing end cap position of being everlasting is adopted the wool felt oil sealing and is blocked dust and enters bearing inside, and generally adopts two road wool felts as sealing.We find that when wool felt was not infected with lubricant oil, sealing effect was fairly good.When in case wool felt is infected with lubricant oil and is in moisture state, because unit is rotating at operation, main shaft, the main shaft of rotation more or less has beats, and this has just produced extruding to wool felt, part lubricant oil throws away outside the end cap along main shaft, and another part lubricant oil throws away in along main shaft toward end cap.Along with the rotating speed of unit increases, this to get rid of oily phenomenon more obvious.Sometimes can throw away several liters of oil in one day.After oil throws away, not only machine room is polluted, the oil level in the bearing support is reduced until being lower than the proper functioning oil level, unit can not normally be moved.
Summary of the invention
The purpose of this utility model is in order to address the above problem, design and a kind ofly can thoroughly prevent the structure that lubricant oil throws away along main shaft, use former bearing support and bearing cap, bearing (ball) cover blank, that is to say under the installation dimension and the immovable situation of boundary dimension of bearing, by the oil sealing of cancellation wool felt, use oil seal ring and disc structure instead, thereby make main shaft and lubricant oil partition under the end cap position prevent that thoroughly lubricant oil from throwing away along main shaft.
The utility model is achieved in that oil sealing plate and oil seal ring are fixed by bolts on the bearing (ball) cover, and bearing (ball) cover is fixed by bolts on the bearing cap, and asbestos rubber oil sealing plate is as the plane sealing of bolt and bearing cap; The disc mount rotates with main shaft on main shaft; The disc assembling comprises disc, articulation hole bolt, nut, packing ring, asbestos packing sheet again; Disc is fixed on the main shaft with articulation hole bolt, nut, packing ring, asbestos packing sheet for dividing the half hitch structure.
Advantage of the present utility model is, 1, by wool felt oil sealing among cancellation Fig. 2, and use oil seal ring and disc structure instead, thereby make main shaft and lubricant oil partition prevent that thoroughly lubricant oil from throwing away along main shaft end cap the position under.2, the utility model is simple in structure, and uses former bearing support and bearing cap, bearing (ball) cover blank, that is to say that the installation dimension of bearing and boundary dimension do not change, therefore reforming cost is low, easy to implement, and convenient for installation and maintenance, can be widely used in various radial bearings.
Description of drawings
Fig. 1 is the bearing assembling behind the anti-rejection oily device of bearing (ball) cover after improving.
Fig. 2 is that the primitive axis of the anti-rejection oily device of bearing (ball) cover before improving takes up figure.
Fig. 3 improves the new bearing (ball) cover schematic representation that the back substitutes primitive axis socket end lid.
Fig. 4 improves the A of the new bearing (ball) cover in back to view.
Fig. 5 is a primitive axis socket end lid schematic representation.
Fig. 6 is that primitive axis socket end lid B is to view.
Fig. 7 improves the newly-increased oil seal ring schematic representation in back.
Fig. 8 improves the newly-increased disc schematic representation in back.
Fig. 9 improves the C of back disc to view
Each unit number is: the 1-bolt; 2-oil sealing plate; The new bearing (ball) cover of 3-; The 4-oil seal ring; 5-asbestos rubber oil sealing plate; The assembling of 6-disc; The 7-bolt; The 8-bearing cap; The 9-wool felt; 10-primitive axis socket end lid; The 11-disc; 12-articulation hole bolt; The 13-nut; The 14-packing ring; The 15-asbestos packing sheet; The 16-main shaft.
Embodiment
The primitive axis that does not improve the anti-rejection oily device of bearing (ball) cover as Fig. 2 takes up shown in the figure, and bearing (ball) cover 10 usefulness bolts 7 are contained on the bearing cap 8, and wool felt 9 is contained in and is used for the main shaft oil sealing on the bearing (ball) cover 10.When unit operation, main axis rotation, lubricant oil moves and soaks wool felt gradually to wool felt 9 positions along direction shown in the arrow, because main shaft is to the squeezing action of wool felt, part lubricant oil throws away outside the end cap along main shaft, and another part lubricant oil throws away in along main shaft toward end cap.Along with the rotating speed of unit increases, this to get rid of oily phenomenon more obvious.After oil throws away, not only machine room is polluted, the oil level in the bearing support is reduced up to being lower than the proper functioning oil level, unit can not normally be moved.
For this reason, we have replaced primitive axis socket end lid 10 (as Fig. 5 and Fig. 6) with new bearing (ball) cover 3 (as Fig. 3 and Fig. 4), change former bearing support two ends seam shapes (as Fig. 1), increased bolt 1, oil sealing plate 2, oil seal ring 4, disc assembling 6, cancellation wool felt 9.
The utility model is to realize like this; Oil sealing plate 2 and oil seal ring 4 usefulness bolts 1 are fixed on the bearing (ball) cover 3, and bearing (ball) cover 3 usefulness bolts 7 are fixed on the bearing cap 8, and asbestos rubber oil sealing plate 5 is as the plane sealing of bolt 7 and bearing cap 8; Disc assembling 6 is fixed on the main shaft rotates with main shaft; Disc assembling 6 comprises disc 11, articulation hole bolt 12, nut 13, packing ring 14, asbestos packing sheet 15 again; Disc 11 is fixed on the main shaft 16 with articulation hole bolt 12, nut 13, packing ring 14, asbestos packing sheet 15 for dividing the half hitch structure.
As shown in Figure 1, when unit operation, main axis rotation, most of lubricant oil is got rid of back bearing chamber by disc assembling 6, the lubricant oil of minute quantity is crossed disc assembling 6 along direction shown in the arrow, drops on oil seal ring 4 outer walls again, and the lubricant oil that falls on outer wall returns oil sump again along the oil seal ring outer wall, main shaft and lubricant oil under the oil seal ring position cut off fully, so just thoroughly prevent that lubricant oil from throwing away along main shaft.
Claims (1)
1. the improvement of the anti-rejection oily device of end cap in the hydraulic turbine generator radial bearing, it is characterized in that: oil sealing plate (2) and oil seal ring (4) are fixed on the bearing (ball) cover (3) with bolt (1), bearing (ball) cover (3) is fixed on the bearing cap (8) with bolt (7), and asbestos rubber oil sealing plate (5) is as the plane sealing of bolt (7) and bearing cap (8); Disc assembling (6) is fixed on the main shaft rotates with main shaft; Disc assembling (6) comprises disc (11), articulation hole bolt (12), nut (13), packing ring (14), asbestos packing sheet (15) again; Disc (11) is fixed on (16) on the main shaft for dividing the half hitch structure with articulation hole bolt (12), nut (13), packing ring (14), asbestos packing sheet (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202598476U CN201568457U (en) | 2009-12-25 | 2009-12-25 | Improvement of oil-throwing preventing device for end cover in radial bearing of water turbine generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202598476U CN201568457U (en) | 2009-12-25 | 2009-12-25 | Improvement of oil-throwing preventing device for end cover in radial bearing of water turbine generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201568457U true CN201568457U (en) | 2010-09-01 |
Family
ID=42660742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202598476U Expired - Fee Related CN201568457U (en) | 2009-12-25 | 2009-12-25 | Improvement of oil-throwing preventing device for end cover in radial bearing of water turbine generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201568457U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712892A (en) * | 2013-12-16 | 2015-06-17 | 株式会社荏原制作所 | Lubricant spill suppression device, rotary machine and lubricant spill suppression method |
-
2009
- 2009-12-25 CN CN2009202598476U patent/CN201568457U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712892A (en) * | 2013-12-16 | 2015-06-17 | 株式会社荏原制作所 | Lubricant spill suppression device, rotary machine and lubricant spill suppression method |
| CN104712892B (en) * | 2013-12-16 | 2018-10-12 | 株式会社荏原制作所 | Inhibit outflow of lubrication oil device, rotating machinery, the method for inhibiting outflow of lubrication oil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20111225 |