CN104279329B - A kind of oil catch - Google Patents
A kind of oil catch Download PDFInfo
- Publication number
- CN104279329B CN104279329B CN201310275172.5A CN201310275172A CN104279329B CN 104279329 B CN104279329 B CN 104279329B CN 201310275172 A CN201310275172 A CN 201310275172A CN 104279329 B CN104279329 B CN 104279329B
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- Prior art keywords
- oil
- ring
- baffle
- rotating shaft
- interior
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Classifications
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- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a kind of oil catch, including the oil catch ring (3) for being set in rotating shaft (7), also include the interior oil baffle (5) being linked in described rotating shaft (7) periphery, described interior oil baffle (5) is fixed in described oil catch ring (3) inner side, it is formed with gap between described interior oil baffle (5) and described rotating shaft (7), described interior oil baffle (5) stops on oil-feed path for the oil of attachment upper to described rotating shaft (7), and makes described oil enter described oil catch ring (3) lower section by described gap.Its beneficial effect: due to interior oil baffle affixed inside oil catch ring, which increases one interdiction capability, namely in rotating shaft, the oil of attachment first passes through the obstruction of interior oil baffle, and oil enters back into gap afterwards, and such sealing effectiveness is preferable.
Description
Technical field
The present invention relates to oil sealing device, more particularly, it relates at a kind of rotating shaft being installed on electromotor,
For oil seal, prevent the oil catch that in rotating shaft, the oil of attachment throws away.
Background technology
Electromotor generally comprises rotating shaft, but in generator operation, along with the rotation of rotating shaft, in rotating shaft
The oil (e.g. lubricating oil) of attachment is easily thrown to generator external from generator, not only bad for sending out
The operation of motor self, and the oil being thrown to generator external the most easily pollutes miscellaneous equipment, causes other to set
Standby is seriously polluted, and the oil being thrown to generator external under certain situation also can cause the short circuit etc. of miscellaneous equipment to ask
Topic.For the problems referred to above, the solution of prior art is usually and is socketed an oil catch in rotating shaft, by oil
On gear countershaft, the oil of attachment stops；Oil catch of the prior art includes oil catch ring, internal ring from outside to inside
And outer shroud, the inwall of outer shroud is provided with comb (sealing tooth), carrys out attachment on countershaft by sealing tooth
Oil stops.But oil catch of the prior art exists, and sealing is poor, the problem of easy leakage of oil.
Summary of the invention
The technical problem to be solved in the present invention is, poor for the above-mentioned oil catch sealing of prior art, hold
The defect of easy oil leakage, it is provided that a kind of can stop outside leakage of oil at the rotating shaft of electromotor, the oil catch of good seal performance.
The technical solution adopted for the present invention to solve the technical problems is: a kind of oil catch of structure, including for
The oil catch ring being set in rotating shaft, also includes the interior oil baffle being linked in described rotating shaft periphery, described interior gear oil
Plate is fixed in inside described oil catch ring, is formed with gap between described interior oil baffle and described rotating shaft, described interior
Oil baffle is for stopping on oil-feed path the oil of attachment in described rotating shaft, and described oil is passed through
Described gap enters below described oil catch ring.
In oil catch of the present invention, described oil catch also includes outer shroud and internal ring, the inner side of described oil catch ring
Having annular cavity, be provided with elastic component in described annular cavity, the periphery wall of described outer shroud is located at described ring
Intracavity abutting with described elastic component in shape, for be socketed in rotating shaft described in be located on described outer shroud
Internal perisporium on,
In oil catch of the present invention, the spacing in described gap is L, 0.4≤L≤0.6 millimeter.
In oil catch of the present invention, described interior oil baffle is interior gear oil aluminium sheet.
In oil catch of the present invention, the end of described interior oil baffle is formed with a crown, described crown
A length of M, 0.2≤M≤0.4 millimeter.
In oil catch of the present invention, described oil catch also includes half baffle ring, and described interior oil baffle is by described
Half baffle ring is installed in inside described oil catch ring.
In oil catch of the present invention, if described internal ring includes dry splice ring, if described dry splice eye tail
Connect and enclose the described internal ring of formation, if forming dry seal tooth on the internal perisporium of each described splicing ring；Described in one
The described sealing tooth of splicing ring is equal with the described sealing number of teeth amount of another adjacent described splicing ring, position phase
Corresponding and abut one by one.
In oil catch of the present invention, the end of described splicing ring is also formed with oil-recovery tank, described oil-recovery tank
If connecting with the space formed between described dry seal tooth.
In oil catch of the present invention, the number of the described sealing tooth on the internal perisporium of each described splicing ring
Amount is 5.
In oil catch of the present invention, the quantity of described annular cavity is 2,2 described annular cavities
Between described oil catch ring on be formed with oil outlet.
Implement the oil catch of the present invention, have the advantages that due to interior gear affixed inside oil catch ring
Oiled-plate method, this avoid oil directly splash to oil catch ring, adds one interdiction capability, namely in rotating shaft
The oil of attachment first passes through the obstruction of interior oil baffle, afterwards oil enter back into the end of the interior oil baffle near rotating shaft with
The gap formed between rotating shaft, such sealing effectiveness is preferable, and the service life of oil catch is the longest；Interior oil baffle
Forming dilatation chamber with oil catch interannular, after making the oil leaking through interior oil baffle enter this dilatation chamber, oil pressure reduces,
And then effectively reduce the backflow of oil.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural representation of oil catch embodiment of the present invention；
Fig. 2 is the sectional structure schematic diagram in Fig. 1 along line A-A；
Fig. 3 is the sectional structure schematic diagram in Fig. 1 along line B-B；
In figure:
1-outer shroud, 2-internal ring, 3-oil catch ring, 4-elastic component, oil baffle in 5-, 6-half baffle ring, 7-rotating shaft；
21-seals tooth, 22-oil-recovery tank, 31-annular cavity, 51-end, 52-crown.
Detailed description of the invention
In order to the technical characteristic of the present invention, purpose and effect are more clearly understood from, now compare accompanying drawing
Describe the detailed description of the invention of the present invention in detail.
As shown in Figure 1 and combine Fig. 2.The oil catch of the present embodiment, including for being set in the oil in rotating shaft 7
Baffle ring 3, also includes the interior oil baffle 5 being linked in rotating shaft 7 periphery, and interior oil baffle 5 is fixed in oil catch ring 3
Inner side, is formed with gap between interior oil baffle 5 and rotating shaft 7, interior oil baffle 5 adheres on countershaft 7
Oil stop on oil-feed path, and oil is entered below oil catch ring 3 by gap.Between gap
Away from for L, 0.4≤L≤0.6 millimeter.
Oil catch also includes outer shroud 1 and internal ring 2, and the inner side of oil catch ring 3 has annular cavity 31, annular cavity
It is provided with elastic component 4 in 31, in the periphery wall of outer shroud 1 is located at annular cavity 31 and abuts with elastic component 4,
Internal ring 2 for being socketed in rotating shaft 7 is located at the internal perisporium of outer shroud 1,
The most in the form of a ring, outer shroud 1 and internal ring 2 can use stainless steel to prepare for outer shroud 1 and internal ring 2.
If internal ring 2 includes dry splice ring, if dry splice eye WEILIAN connects encloses formation internal ring 2, each splicing
If forming dry seal tooth 21 on the internal perisporium of ring.Such as internal ring 2 includes 16 splicing rings, 16 splicing rings
Head and the tail connection encloses formation internal ring 2, the internal perisporium of each splicing ring is formed 5 and seals teeth 21；Certainly,
In other embodiments, the quantity of splicing ring is not limited to 16, it is also possible to be 12,24 etc.
Other quantity.Correspondingly, outer shroud 1 can also be divided into and splice the quantity such as ring some sections, each section of outer shroud
1 is affixed with a splicing ring.5 width sealing tooth 21 are 32.5 millimeters, and 5 seal tooth 21 and uniformly arrange
Cloth, so makes the spacing sealing tooth 21 relatively reasonable, the effect of oil baffle 5 in simultaneously coordinating so that close
Envelope effect is preferable；Certainly, in other embodiments, the quantity sealing tooth 21 of each splicing ring is the most not
Being limited to 5, it is also possible to be 2, other quantity such as 3, other is identical with the present embodiment.
As it is shown on figure 3, oil catch ring 3 is the most circlewise, within it form annular cavity 31, namely at oil
Forming annular cavity 31 on the internal perisporium of baffle ring 3, annular cavity 31 has an annular groove, recessed in annular
The opening part of groove is arranged with two catch；The periphery wall of outer shroud 1 is located in annular cavity 31, further
Saying, the cross section of outer shroud 1 is I-shaped, and such outer shroud 1 can be connected in annular groove, and two
Catch is stuck in the waist (middle part) of outer shroud 1, the most easy to assembly, also makes convenient disassembly.
In the present embodiment, the quantity of annular cavity 31 is 2, on the oil catch ring 3 between 2 annular cavities 31
It is formed with oil outlet；Namely each annular cavity 31 is correspondingly arranged elastic component 4, outer shroud 1 and
Internal ring 2, when so sealing, oil Xu Jing tri-road intercepts: be first interior oil baffle 5, next to that in first
Ring 2, is finally second internal ring 2, and sealing effectiveness is preferable.
Elastic component 4 is located in annular cavity 31, and elastic component 4 can be spring leaf or spring, this enforcement
Example Elastic part 4 be thickness be the spring leaf of 2.0 millimeters, the most in other embodiments, elastic component 4
Thickness can also be other numerical value.Elastic component 4 can be outer shroud 1 and internal ring 2 provides certain elasticity to delay
Punching.
Interior oil baffle 5 keeps off oil aluminium sheet in being preferably, and the end 51 of interior oil baffle 5 is formed with a crown 52,
The a length of M of crown 52,0.2≤M≤0.4 millimeter.When rotating shaft 7 duty occurs abnormal, rotating shaft
7 may touch mill with interior oil baffle 5, and weakness is at crown 52.Interior oil baffle 5L is preferably
0.5 millimeter, this is because in actual motion, rotating shaft 7 vibration unit vibration in other words conj.or perhaps also not up to 0.5
Having shut down during millimeter, the most now crown 52 will not touch and be ground to rotating shaft 7.M is preferably 0.3 millimeter,
Long-term when placing aluminum oxidizable, after oxidation, crown 52 can produce harder containment vessel, but crown 52
When running into certain active force (e.g. more than 16.8N), first crown 52 there is plastic deformation,
I.e. crown 52 bends so that the shaft clearance gap of rotating shaft 7 (the interior oil baffle 5 with) expands immediately, makes to touch
Mill disappears, and after touching mill disappearance, the stress in other place disappears the most therewith, and which increase safe operation is
Number.Therefore, it is content to retain sovereignty over a part of the country complete that interior oil baffle 5 uses aluminum material to prepare, namely is conducive to avoiding touching mill,
Even if touch mill simultaneously, crown 52 also will not cause damage by countershaft 7.
In certain embodiments, L can also be 0.4 millimeter, 0.6 millimeter or between 0.4-0.6 millimeter
Between other numerical value, other is identical with the present embodiment.In further embodiments, M can also be 0.2
Millimeter, 0.4 millimeter or other numerical value between 0.2-0.4 millimeter, other is identical with the present embodiment.
Interior oil baffle 5 is fixed on the inner side of oil catch ring 3；At this it should be noted that rotating shaft 7 is usually peace
Being contained on main frame, after the oil catch of the present embodiment is located in rotating shaft 7, oil catch ring 3 is near the side of main frame
For inner side, oil catch ring 3 is outside away from the side of main frame；About above-mentioned oil-feed path it should be noted that
Oil-feed path is the path of side from the inside to the outside, and in rotating shaft 7, the oil of attachment enters oil catch ring 3 by oil-feed path
Lower section, before the oil that the present embodiment adheres in rotating shaft 7 enters below oil catch ring 3, sets on oil-feed path
Put interior oil baffle 5, stop for the first time with the oil of attachment on countershaft 7.Interior oil baffle 5 is fixed on oil
The inner side of baffle ring 3, which increases the oil of attachment on one interdiction capability, namely rotating shaft 7 and first passes through interior gear
The obstruction of oiled-plate method 5, afterwards oil enter back into the interior oil baffle 5 near rotating shaft 7 end 51 and rotating shaft 7 it
Between the gap that formed, enter internal ring 2 by gap, then intercepted by internal ring 2, such sealing effectiveness is relatively
Good, the service life of oil catch is the longest.Dilatation chamber (dilatation chamber is formed between interior oil baffle 5 and oil catch ring 3
The room sealing tooth 21 by interior oil baffle 5, oil catch ring 3 with near interior oil baffle 5 encloses and is formed, dilatation chamber
The entrance of room is between interior oil baffle 5 and rotating shaft 7 gap formed, and the outlet of dilatation chamber is positioned at above-mentioned
The lower section sealing tooth 21), make the oil leaking through interior oil baffle 5 enter oil pressure after this dilatation chamber and reduce, it
Rear oil is intercepted by sealing tooth 21 again, and the oil after blood pressure lowering can avoid the occurrence of the phenomenon of oily backflow,
Enter, by sealing tooth 21, the phenomenon that main frame (e.g. electromotor) is internal that is, avoid the occurrence of oil.
Preferably, interior oil baffle 5 is perpendicular to the axial of rotating shaft 7, and such advantage is, attached in rotating shaft 7
When the oil gets rid of on interior oil baffle 5, the oil active force that internally oil baffle 5 applies is more uniform, it is to avoid uneven
The problem that even active force easily causes interior oil baffle 5 and oil catch ring 3 Joint failure.Certainly, implement at some
In example, interior oil baffle 5 can also or obtuse angle setting at an acute angle with rotating shaft 7.
The oil catch of the present embodiment also includes that half baffle ring 6, interior oil baffle 5 are installed in oil catch ring by half baffle ring 6
Inside 3.Fixed form is realized by bolt.
About splicing ring, it should be understood that
The end of splicing ring is also formed with oil-recovery tank 22, is formed between oil-recovery tank 22 and 5 sealing teeth 21
Space connection, namely seal the oil between tooth 21 and can be reclaimed by oil-recovery tank 22.One splicing ring
Seal that tooth 21 is equal with sealing tooth 21 quantity that adjacent another splices ring, position is corresponding and supports one by one
Connect, so make the tooth 21 that seals of correspondence be combined into a complete ring, the beneficially uniform force of oil catch,
If because above-mentioned ring exists breach, not only bad for sealing the circulation of oil between tooth 21, also make to seal
Tooth 21 suffers extra destructive power, is unfavorable for the service life of oil catch.
Above in conjunction with accompanying drawing, embodiments of the invention are described, but the invention is not limited in
The detailed description of the invention stated, above-mentioned detailed description of the invention is only schematic rather than restricted
, those of ordinary skill in the art is under the enlightenment of the present invention, without departing from present inventive concept and right
Require, under the ambit protected, to it may also be made that a lot of form, these belong to the present invention protection it
In.
Claims (6)
1. an oil catch, including the oil catch ring (3) for being set in rotating shaft (7), rotating shaft (7) is pacified
Being contained on main frame, after described oil catch is located in rotating shaft (7) above, oil catch ring (3) is near the side of main frame
For inner side, oil catch ring (3) is outside away from the side of main frame, it is characterised in that also include being linked in institute
Stating the interior oil baffle (5) of rotating shaft (7) periphery, described interior oil baffle (5) is fixed in described oil catch ring (3)
Inner side, is formed with gap, described interior oil baffle (5) between described interior oil baffle (5) and described rotating shaft (7)
Oil for attachment upper to described rotating shaft (7) stops on oil-feed path, and described oil is passed through
Described gap enters described oil catch ring (3) lower section, and wherein, described oil-feed path is to outside from inner side
Path；
Forming dilatation chamber between interior oil baffle (5) and oil catch ring (3), the entrance of dilatation chamber is interior gear oil
The gap formed between plate (5) and described rotating shaft (7), the oil leaking through interior oil baffle (5) enters this expansion
Behind cavity volume room, oil pressure reduces；
Described oil catch also includes that outer shroud (1) and internal ring (2), the inner side of described oil catch ring (3) have annular
Inner chamber (31), is provided with elastic component (4), the periphery of described outer shroud (1) in described annular cavity (31)
In described annular cavity (31) is located at by wall and abut with described elastic component (4), be used for being socketed in rotating shaft (7)
On described internal ring (2) be located on the internal perisporium of described outer shroud (1)；
The spacing in described gap is L, 0.4≤L≤0.6 millimeter；
Described interior oil baffle (5) is interior gear oil aluminium sheet；
The end (51) of described interior oil baffle (5) is formed with a crown (52), described crown (52)
A length of M, 0.2≤M≤0.4 millimeter.
Oil catch the most according to claim 1, it is characterised in that described oil catch also includes half baffle ring
(6), described interior oil baffle (5) is installed in described oil catch ring (3) inner side by described half baffle ring (6).
Oil catch the most according to claim 1, it is characterised in that described internal ring (2) includes some spellings
T-Ring, if described dry splice eye WEILIAN connects encloses the described internal ring of formation (2), each described splicing ring interior
If forming dry seal tooth (21) on perisporium；The described sealing tooth (21) of ring is spliced another with adjacent described in one
Described sealing tooth (21) quantity splicing ring described in one is equal, position is corresponding and abuts one by one.
Oil catch the most according to claim 3, it is characterised in that the end of described splicing ring is also formed
Have oil-recovery tank (22), described oil-recovery tank (22) and if between described dry seal tooth (21) formed space
Connection.
Oil catch the most according to claim 3, it is characterised in that the internal perisporium of each described splicing ring
On the quantity of described sealing tooth (21) be 5.
Oil catch the most according to claim 1, it is characterised in that the number of described annular cavity (31)
Amount is 2, and the described oil catch ring (3) between 2 described annular cavities (31) is formed with oil outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310275172.5A CN104279329B (en) | 2013-07-02 | 2013-07-02 | A kind of oil catch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310275172.5A CN104279329B (en) | 2013-07-02 | 2013-07-02 | A kind of oil catch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104279329A CN104279329A (en) | 2015-01-14 |
| CN104279329B true CN104279329B (en) | 2016-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310275172.5A Active CN104279329B (en) | 2013-07-02 | 2013-07-02 | A kind of oil catch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104279329B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104421432B (en) * | 2013-08-21 | 2017-11-21 | 中国广核集团有限公司 | The seal member and sealing system of generator of nuclear power station |
| CN109707849B (en) * | 2019-01-11 | 2020-12-22 | 东方电气集团东方汽轮机有限公司 | Oil scraper ring structure |
| CN113629929B (en) * | 2021-07-31 | 2022-11-11 | 智伟电力(无锡)有限公司 | Double-cavity oil retainer structure |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2470603Y (en) * | 2001-03-07 | 2002-01-09 | 骆义根 | Multi-spline oil-scraper ring |
| CN2477833Y (en) * | 2001-05-30 | 2002-02-20 | 石占山 | Extraction check device for turbo-set |
| CN101392834A (en) * | 2007-09-19 | 2009-03-25 | 中国铝业股份有限公司 | Hermetic sealing steam baffle structure |
| CN101216108A (en) * | 2007-12-29 | 2008-07-09 | 东方电气集团东方汽轮机有限公司 | Adjustable deflector and its regulation method |
| CN201679963U (en) * | 2010-01-29 | 2010-12-22 | 王喜清 | Split type all sealing oil baffle |
| JP5509037B2 (en) * | 2010-11-09 | 2014-06-04 | 株式会社東芝 | Shaft sealing device, clearance adjusting method for shaft sealing device, and steam turbine |
| CN202884025U (en) * | 2012-11-08 | 2013-04-17 | 苏洪洲 | Rebound-type contact oil baffle |
| CN203500458U (en) * | 2013-07-02 | 2014-03-26 | 苏州热工研究院有限公司 | Oil catch |
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- 2013-07-02 CN CN201310275172.5A patent/CN104279329B/en active Active
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| Publication number | Publication date |
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| CN104279329A (en) | 2015-01-14 |
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