CN205503925U - Wind -powered electricity generation gearbox output shaft seal structure - Google Patents
Wind -powered electricity generation gearbox output shaft seal structure Download PDFInfo
- Publication number
- CN205503925U CN205503925U CN201620204868.8U CN201620204868U CN205503925U CN 205503925 U CN205503925 U CN 205503925U CN 201620204868 U CN201620204868 U CN 201620204868U CN 205503925 U CN205503925 U CN 205503925U
- Authority
- CN
- China
- Prior art keywords
- seal
- face
- output shaft
- seal face
- end cap
- 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
Links
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
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/04—Combinations of toothed gearings only
- F16H37/041—Combinations of toothed gearings only for conveying rotary motion with constant gear ratio
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D15/00—Transmission of mechanical power
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/57—Seals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/40—Transmission of power
- F05B2260/403—Transmission of power through the shape of the drive components
- F05B2260/4031—Transmission of power through the shape of the drive components as in toothed gearing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model provides a sealed better wind -powered electricity generation gearbox output shaft seal structure of effect, characterized by: still include the terminal surface labyrinth seal who is connected with output shaft end lid (1), terminal surface labyrinth seal includes body (10) and establishes first on the body, 2. Some modes of needle punching ar, third, four seal faces (11), (12 ), (13 )With (14), it is first, 2. Some modes of needle punching ar, third, four seal faces are radially by outer extremely interior range and second, one, third, four seal face axials are arranged from left to right, correspondingly, the footpath is equipped with respectively first with terminal surface labyrinth seal backward on labyrinth seal (4), 2. Some modes of needle punching ar, third, it is first that four sealed end face seal laminate, 2. Some modes of needle punching ar, third, four cooperation seal faces (41), (42 ), (43 )With (44).
Description
Technical field
This utility model relates to wind turbine gearbox and seals structure, is specifically related to a kind of wind turbine gearbox output shaft seal structure.
Background technology
Traditional wind turbine gearbox output shaft seal structure, sees Fig. 1, including；Left end is connected with the right-hand member of gear housing, the back box lid 5 that right-hand member is connected with the left end of rear box 3, the output shaft end cap 1 that left end is connected with the right-hand member of back box lid 5, it is positioned in the oil sump 6 of gear housing and left end is assemblied on gear housing, right-hand member passes rear box 3, output shaft 2 outside back box lid 5 and output shaft end cap 1, and it is positioned on rear box 3 and connects the drainback passage D of oil sump 6 and output shaft end cap 1, labyrinth sealing 4 backward, footpath it are provided with between described output shaft 2 and output shaft end cap 1, its drainback passage D is positioned on rear box 3 and connects oil sump 6 and end cap 1, exist technical problem is that:
1, footpath radial clearance between labyrinth sealing 4 and output shaft 2 and end cap 1 backward is the least, and sealing effectiveness is the best.Owing to affecting the many factors of footpath radial clearance backward between labyrinth sealing 4 and output shaft 2 and end cap 1, thus control the most difficult, the highest to the requirement of process and assemble, process and assemble is relatively difficult.
2, only have single labyrinth sealing 4 backward, footpath, and a length of shorter two section that the radial clearance between the labyrinth sealing 4 backward of end cap 1 and footpath is controlled, output shaft 2 runs up when, owing to the inside and outside differential pressure of gear housing 5 is bigger, lubricating oil outwards may throw away by the right-hand member of labyrinth sealing 4 backward along footpath, occur oozing, oil leakage phenomenon, sealing effectiveness is poor, reliability, safety are relatively low and it is the highest to ring service life.
3, drainback passage D shares, easily cause oil return the most smooth, during gear-box operating, owing to its internal oil temperature is higher than ambient temperature, a pressure reduction can be formed inside and outside such gear-box, share drainback passage D, maximum differential pressure is the most external, its oil vapour is directly seeped into outer wall easily by gap, can form mist pearl, form leakage of oil year in and year out after the temperature that contact is extraneous.
Utility model content
The technical problems to be solved in the utility model is to provide the wind turbine gearbox output shaft seal structure that a kind of sealing effectiveness is preferable, safety and reliability is higher.
For solving above-mentioned technical problem, this utility model adopts the following technical scheme that；
A kind of wind turbine gearbox output shaft seal structure, including；The back box lid that left end is connected with the right-hand member of gear housing, right-hand member is connected with the left end of rear box, the output shaft end cap that left end is connected with the right-hand member of back box lid, it is positioned in the oil sump of gear housing and left end is assemblied on gear housing, right-hand member passes rear box, output shaft outside back box lid and output shaft end cap, and it is positioned on rear box and connects the drainback passage of oil sump and output shaft end cap, between described output shaft and output shaft end cap, it is provided with footpath labyrinth sealing backward, it is characterized in that:
Also include the end face labyrinth sealing being connected with output shaft end cap, described end face labyrinth sealing includes body and the first seal face being located on this body, second seal face, 3rd seal face and the 4th seal face, described first seal face, second seal face, 3rd seal face and the 4th seal face arrangement and the second seal face the most from outside to inside, first seal face, 3rd seal face and the 4th seal face arrange the most from left to right, correspondingly, the labyrinth sealing backward of described footpath be provided with respectively with end face labyrinth sealed the first seal face, second seal face, 3rd seal face and the 4th seal face seal the first fitted seal end face of laminating, second fitted seal end face, 3rd fitted seal end face and the 4th fitted seal end face.
Further, the first back oil road between outer end and the inner of end cap in connection gear housing it is additionally provided with.
More one step ground, is additionally provided with the second back oil road between outer end and the inner of end cap in connection gear housing.
Another step ground, is additionally provided with the 3rd back oil road between outer end and the inner of end cap in connection gear housing.
Further walking ground, described end cap is structure as a whole with end face labyrinth sealing.
Compared with prior art, this utility model comprises following beneficial effect；
The end face labyrinth sealing being connected with output shaft end cap is also included due to this utility model, described end face labyrinth sealing includes body and sets the first seal face on the body, second seal face, 3rd seal face and the 4th seal face, described first seal face, second seal face, 3rd seal face and the 4th seal face arrangement and the second seal face the most from outside to inside, first seal face, 3rd seal face and the 4th seal face arrange the most from left to right, correspondingly, the labyrinth sealing backward of described footpath be provided with respectively with end face labyrinth sealed the first seal face, second seal face, 3rd seal face and the 4th seal face seal the first fitted seal end face of laminating, second fitted seal end face, 3rd fitted seal end face and the 4th fitted seal end face.Then, as long as end face labyrinth sealed the first seal face, the second seal face, the 3rd seal face and the 4th seal face are fitted with footpath labyrinth sealed the first fitted seal end face backward, the second fitted seal end face, the 3rd fitted seal end face and the 4th fitted seal end face seal respectively, be to ensure that lubricating oil will not along footpath backward labyrinth sealing outwards throw away, and prevent ooze, oil leakage phenomenon, thus service life is higher.Thus, even if by footpath, radial clearance machining control between labyrinth sealing and output shaft and end cap must be not little backward, it is also possible to have preferable sealing effectiveness and reliability, safety higher.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the output shaft seal structure of traditional wind turbine gearbox；
Fig. 2 is structural representation of the present utility model.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings；
See Fig. 2, wind turbine gearbox output shaft seal structure, including；The back box lid 5 that left end is connected with the right-hand member of gear housing, right-hand member is connected with the left end of rear box 3, the output shaft end cap 1 that left end is connected with the right-hand member of back box lid 5, it is positioned in the oil sump of gear housing and left end is assemblied on gear housing, right-hand member passes rear box 3, output shaft 2 outside back box lid 5 and output shaft end cap 1, and it is positioned on rear box 3 and connects the drainback passage D of oil sump and output shaft end cap 1, between described output shaft 2 and output shaft end cap 1, it is provided with labyrinth sealing 4 backward, footpath.As it is clear from fig. 2 that this utility model also includes the end face labyrinth sealing 10 being connected with output shaft end cap 1；11；12；13；14, described end face labyrinth sealing includes body 10 and the first seal face the 11, second seal face the 12, the 3rd seal face 13 and the 4th seal face 14 being located on this body 10, described first seal face the 11, second seal face the 12, the 3rd seal face 13 and the 4th seal face 14 arrangement and second seal face the 12, first seal face the 11, the 3rd seal face 13 and the 4th seal face 14 the most from outside to inside axially arrange from left to right, correspondingly, the labyrinth sealing 4 backward of described footpath be provided with respectively with end face labyrinth sealing 10；11；12；13；First seal face the 11, second seal face the 12, the 3rd seal face 13 of 14 and the 4th seal face 14 seal the first fitted seal end face the 41, second fitted seal end face the 42, the 3rd fitted seal end face 43 and the 4th fitted seal end face 44 of laminating.Then, as long as by end face labyrinth sealing 10；11；12；13；First seal face the 11, second seal face the 12, the 3rd seal face 13 of 14 and the 4th seal face 14 seal laminating with first fitted seal end face the 41, second fitted seal end face the 42, the 3rd fitted seal end face 43 of footpath labyrinth sealing 4 backward and the 4th fitted seal end face 44 respectively, be to ensure that lubricating oil will not along footpath backward labyrinth sealing 4 outwards throw away, and prevent ooze, oil leakage phenomenon, thus service life is higher.Thus, even if by footpath, radial clearance machining control between labyrinth sealing 4 and output shaft 2 and end cap 1 must be not little backward, it is also possible to have preferable sealing effectiveness and reliability, safety higher.
As it is clear from fig. 2 that this utility model is additionally provided with the first back oil road 7 between outer end and the inner of end cap 1 in connection gear housing.This just can preferably decompose gear housing interior oil pressure, reduces further the oozing of gear housing, oil leakage phenomenon.
As it is clear from fig. 2 that this utility model is additionally provided with the second back oil road 8 between outer end and the inner of end cap 1 in connection gear housing.This just can preferably decompose gear housing interior oil pressure, reduces further the oozing of gear housing, oil leakage phenomenon.
As it is clear from fig. 2 that this utility model is additionally provided with the 3rd back oil road 9 between outer end and the inner of end cap 1 in connection gear housing.This just can further decompose gear housing interior oil pressure, further reduces the oozing of gear housing, oil leakage phenomenon.
As it is clear from fig. 2 that end cap 1 described in the utility model and end face labyrinth sealing 10；11；12；13；14 are structure as a whole.This makes end face labyrinth sealing 10；11；12；13；The sealing effectiveness of 14 more preferably and is easier processing.
Claims (5)
1. a wind turbine gearbox output shaft seal structure, including；Left end is connected with the right-hand member of gear housing, the back box lid (5) that right-hand member is connected with the left end of rear box (3), the output shaft end cap (1) that left end is connected with the right-hand member of back box lid (5), it is positioned in the oil sump of gear housing and left end is assemblied on gear housing, right-hand member passes rear box (3), output shaft (2) outside back box lid (5) and output shaft end cap (1), and it is positioned on rear box (3) and connects the drainback passage (D) of oil sump and output shaft end cap (1), footpath labyrinth sealing backward (4) it is provided with between described output shaft (2) and output shaft end cap (1), it is characterized in that:
Also include the end face labyrinth sealing (10 being connected with output shaft end cap (1)；11；12；13；14), described end face labyrinth sealing includes body (10) and the first seal face (11) being located on this body (10), second seal face (12), 3rd seal face (13) and the 4th seal face (14), described first seal face (11), second seal face (12), 3rd seal face (13) and the 4th seal face (14) arrangement and the second seal face (12) the most from outside to inside, first seal face (11), 3rd seal face (13) and the 4th seal face (14) axially arrange from left to right, correspondingly, described footpath labyrinth sealing backward (4) be provided with respectively with end face labyrinth sealing (10；11；12；13；14) the first seal face (11), the second seal face (12), the 3rd seal face (13) and the 4th seal face (14) seals the first fitted seal end face (41), the second fitted seal end face (42), the 3rd fitted seal end face (43) and the 4th fitted seal end face (44) of laminating.
Wind turbine gearbox output shaft seal structure the most according to claim 1, is characterized in that: be additionally provided with the first back oil road (7) between outer end and the inner of end cap (1) in connection gear housing.
Wind turbine gearbox output shaft seal structure the most according to claim 1, is characterized in that: be additionally provided with the second back oil road (8) between outer end and the inner of end cap (1) in connection gear housing.
Wind turbine gearbox output shaft seal structure the most according to claim 1, is characterized in that: be additionally provided with the 3rd back oil road () 9 between outer end and the inner of end cap (1) in connection gear housing.
Wind turbine gearbox output shaft seal structure the most according to any one of claim 1 to 4, is characterized in that: described end cap (1) and end face labyrinth sealing (10；11；12；13；14) it is structure as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620204868.8U CN205503925U (en) | 2016-03-17 | 2016-03-17 | Wind -powered electricity generation gearbox output shaft seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620204868.8U CN205503925U (en) | 2016-03-17 | 2016-03-17 | Wind -powered electricity generation gearbox output shaft seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205503925U true CN205503925U (en) | 2016-08-24 |
Family
ID=56728813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620204868.8U Expired - Fee Related CN205503925U (en) | 2016-03-17 | 2016-03-17 | Wind -powered electricity generation gearbox output shaft seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205503925U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673817A (en) * | 2016-03-17 | 2016-06-15 | 重庆望江工业有限公司 | Sealing structure for output shaft of wind power gear box |
| CN106949229A (en) * | 2017-05-19 | 2017-07-14 | 重庆望江工业有限公司 | A kind of wind turbine gearbox carrier main-body sealing structure |
-
2016
- 2016-03-17 CN CN201620204868.8U patent/CN205503925U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673817A (en) * | 2016-03-17 | 2016-06-15 | 重庆望江工业有限公司 | Sealing structure for output shaft of wind power gear box |
| CN105673817B (en) * | 2016-03-17 | 2018-07-13 | 重庆望江工业有限公司 | A kind of wind turbine gearbox output shaft seal structure |
| CN106949229A (en) * | 2017-05-19 | 2017-07-14 | 重庆望江工业有限公司 | A kind of wind turbine gearbox carrier main-body sealing structure |
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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: 20160824 Termination date: 20190317 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |