CN221196014U - Wind power gear box - Google Patents
Wind power gear box Download PDFInfo
- Publication number
- CN221196014U CN221196014U CN202322878989.3U CN202322878989U CN221196014U CN 221196014 U CN221196014 U CN 221196014U CN 202322878989 U CN202322878989 U CN 202322878989U CN 221196014 U CN221196014 U CN 221196014U
- Authority
- CN
- China
- Prior art keywords
- oil
- oil return
- box
- wind power
- return channel
- 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.)
- Active
Links
- 239000003921 oil Substances 0.000 claims abstract description 144
- 239000010687 lubricating oil Substances 0.000 claims abstract description 52
- 239000007788 liquid Substances 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 11
- 239000003595 mist Substances 0.000 abstract description 8
- 230000003993 interaction Effects 0.000 abstract description 3
- 239000000314 lubricant Substances 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 239000010724 circulating oil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- General Details Of Gearings (AREA)
Abstract
The utility model belongs to the technical field of wind power equipment, and discloses a wind power gear box, which comprises a box body and an output shaft, wherein the output shaft penetrates through the box body, a labyrinth sealing structure is arranged between the box body and the output shaft, a plurality of oil return channels are arranged on the box body, two ends of the oil return channels are communicated with the labyrinth sealing structure and a high-speed rotating cavity in the box body, and lubricating oil is arranged in the high-speed rotating cavity; the inner wall of the box body is also provided with an oil baffle, and the oil baffle can separate the oil return channel and the high-speed rotating chamber. The wind power gear box can reduce the risk of exudation of lubricating oil mist; meanwhile, leakage caused by the interaction of parts with the tail ends rotating at high speed and the oil return channel is prevented, and the tightness is improved.
Description
Technical Field
The utility model relates to the technical field of wind power equipment, in particular to a wind power gear box.
Background
Wind power generation is used as clean energy, and is one of the current common power generation modes. In the field of wind power generation, wind power gearboxes are particularly important. At present, the wind power gear box generates larger heat due to the operation of the internal bearing, the gear train, the shafting and other structures, and lubricating oil is required to be introduced to lubricate the internal structure of the wind power gear box. Therefore, there is also a problem of leakage of the lubricating oil.
A labyrinth sealing mechanism is arranged between the box body of the existing wind power gear box and the output end of the output shaft so as to seal the interior of the box body of the wind power gear box, and the labyrinth sealing structure is also connected with one or more oil return channels, so that lubricating oil entering the labyrinth sealing structure conveniently flows back to the interior of the box body through the oil return channels, and the problem that excessive backlog of the lubricating oil causes leakage of the lubricating oil is avoided, so that the tightness is improved. However, the wind power gear box still has the problem of lubricating oil leakage. The main reasons for this include: 1. the oil return channel is generally not fully filled with lubricating oil, i.e. a gap is reserved, and oil mist generated by high temperature and gear shaft operation in the box body can flow backward from the oil return channel into the labyrinth sealing structure, and the oil mist accumulated in the labyrinth sealing structure for a long time is condensed, so that the lubricating oil leakage of the gear box can be finally caused. 2. When the parts at the output end of the output shaft rotate at a high speed, the lubricating oil can splash and the like, so that part of the lubricating oil can enter the oil return channel, the oil return is not smooth, the lubricating oil in the oil return channel is accumulated, and finally overflows and the lubricating oil is permeated.
Therefore, there is a need to design a wind power gear box to solve the above technical problems.
Disclosure of utility model
The utility model aims to provide a wind power gear box, which can reduce the risk of exudation of lubricating oil mist, prevent leakage caused by interaction between parts with the tail ends rotating at high speed and an oil return channel and improve the tightness.
To achieve the purpose, the utility model adopts the following technical scheme:
The wind power gear box comprises a box body and an output shaft, wherein the output shaft penetrates through the box body, a labyrinth sealing structure is arranged between the box body and the output shaft, a plurality of oil return channels are formed in the box body, two ends of each oil return channel are communicated with the labyrinth sealing structure and a high-speed rotating cavity in the box body, and lubricating oil is arranged in the high-speed rotating cavity;
The inner wall of the box body is also provided with an oil baffle, and the oil baffle can separate the oil return channel and the high-speed rotating chamber.
Optionally, the oil baffle extends into the lubricating oil.
Optionally, at least two rib plates are further arranged in the box at intervals, the oil return channel is arranged between two adjacent rib plates, two ends of the oil baffle are respectively arranged on the two rib plates, and the oil baffle, the liquid level surface of the lubricating oil and the two rib plates form an oil return cavity.
Optionally, a through hole is formed in a top wall of the oil return chamber, and two ends of the through hole are respectively communicated with the high-speed rotation chamber and the tail end of the oil return channel.
Optionally, a circulation oil return hole is formed in the bottom wall of the box body, and the lubricating oil in the box body can flow out of the circulation oil return hole.
Optionally, the circulating oil return hole is located at one side of the bottom of the oil baffle close to the high-speed rotating chamber.
Optionally, the circulation oil return hole is communicated with a circulation oil return pipeline, the circulation oil return pipeline is communicated with an oil supply device, and the oil supply device is used for supplying lubricating oil to the inside of the box body.
Optionally, the oil return channel is obliquely arranged, a dimension of a side, close to the labyrinth seal structure, of the oil return channel from the output shaft is A, and a dimension of a side, close to the high-speed rotation cavity, of the oil return channel from the output shaft is B, wherein A is smaller than B.
Optionally, the oil baffle is screwed to the tank or the oil baffle is welded to the tank.
Optionally, the oil baffle and the box are integrally formed.
The utility model has the beneficial effects that:
According to the wind power gear box, the oil baffle is arranged on one side, facing the box body, of the oil return channel so as to separate the high-speed rotating cavity from the oil return channel, so that a large amount of lubricating oil splashed in the high-speed rotating cavity and generated oil mist are prevented from entering the oil return channel, leakage caused by the fact that the lubricating oil is accumulated in the oil return channel and a labyrinth sealing structure is avoided, and the sealing performance, the service life and the reliability of the wind power gear box are improved.
Drawings
FIG. 1 is a partial structural cross-sectional view of a wind power gearbox provided by an embodiment of the utility model;
fig. 2 is a schematic structural view of a direction a of a wind power gear box according to an embodiment of the present utility model.
In the figure:
10. A case; 11. an oil return passage; 12. a high-speed rotation chamber; 13. an oil return chamber; 14. a through hole; 15. a circulating oil return hole;
20. An output shaft; 30. a labyrinth seal structure; 40. an oil baffle; 50. lubricating oil; 51. a liquid level surface; 60. and rib plates.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
The wind power gear box provided by the utility model is described below with reference to fig. 1 and 2.
As shown in fig. 1, the wind power gear box comprises a box body 10 and an output shaft 20, wherein the output shaft 20 penetrates through the box body 10, and a labyrinth seal structure 30 is arranged between the box body 10 and the output shaft 20 so as to seal the box body 10; the box body 10 is provided with a plurality of oil return channels 11, and two ends of the oil return channels 11 are communicated with the labyrinth seal structure 30 and the high-speed rotating cavity 12 in the box body 10, so that lubricating oil 50 entering the labyrinth seal structure 30 can flow back into the box body 10 through the oil return channels 11; the high-speed rotation chamber 12 is internally provided with lubricating oil 50 for lubricating the structure inside the box 10; the inner wall of the box body 10 is also provided with an oil baffle 40, and the oil baffle 40 can obstruct the oil return channel 11 and the high-speed rotating chamber 12, so that the lubricating oil 50 in the high-speed rotating chamber 12 is prevented from flowing to the oil return channel 11 to cause the leakage of the lubricating oil 50.
According to the wind power gear box of the embodiment, the oil baffle 40 is arranged on one side, facing the box body 10, of the oil return channel 11 so as to separate the high-speed rotating cavity 12 from the oil return channel 11, so that a large amount of lubricating oil 50 splashed in the high-speed rotating cavity 12 and generated oil mist are prevented from entering the oil return channel 11, leakage caused by the fact that the lubricating oil 50 is accumulated on the oil return channel 11 and the labyrinth seal structure 30 is avoided, and the tightness, the service life and the reliability of the wind power gear box are improved.
In the present embodiment, the oil return passage 11 is obliquely arranged, the dimension of the side of the oil return passage 11 close to the labyrinth seal structure 30 from the output shaft 20 is a, the dimension of the side of the oil return passage 11 close to the high-speed rotation chamber 12 from the output shaft 20 is B, a < B, so that the lubricating oil 50 in the labyrinth seal structure 30 can flow into the inside of the case 10 through the oil return passage 11.
In an alternative embodiment, the oil deflector 40 is screwed to the case 10 or the oil deflector 40 is welded to the case 10, so that the connection between the oil deflector 40 and the case 10 is achieved.
In another alternative embodiment, the oil baffle 40 and the case 10 are integrally formed, which simplifies the assembly process and improves the connection strength of the two.
In some embodiments, the oil baffle 40 extends into the lubricating oil 50, so that the bottom of the oil baffle 40 can be ensured not to enter splashed lubricating oil 50 and oil mist, the protection of the oil return channel 11 is further improved, and the tightness, the service life and the reliability of the wind power gear box are improved.
As shown in fig. 2, further, at least two rib plates 60 are further disposed in the box 10 at intervals, the oil return channel 11 is disposed between two adjacent rib plates 60, two ends of the oil baffle 40 are disposed on the two rib plates 60 respectively, the oil baffle 40, the liquid level surface 51 of the lubricating oil 50 and the two rib plates 60 form an oil return chamber 13, so that the oil return chamber 13 where the oil return channel 11 is located is sealed and independent of the high-speed rotation chamber 12, and the possibility that oil mist and splashed oil generated in the high-speed rotation chamber 12 enter the oil return channel 11 is completely avoided.
Since the oil return chamber 13 and the lubricating oil 50 of the high-speed rotation chamber 12 are mutually communicated, if the two chambers are pressurized out, the lubricating oil 50 on one side is raised, and thus the oil return channel 11 is possibly caused to be fed with oil, and the lubricating oil 50 is possibly leaked. Therefore, optionally, the top wall of the oil return chamber 13 is provided with the through hole 14, two ends of the through hole 14 are respectively communicated with the ends of the high-speed rotation chamber 12 and the oil return channel 11, so that the pressure difference between the oil return chamber 13 and the high-speed rotation chamber 12 is not generated, meanwhile, the through hole 14 also has a certain oil return function, the lubricating oil 50 on the labyrinth seal structure 30 is returned to the oil return chamber 13, the through hole 14 is communicated with the end of the oil return channel 11, and the phenomenon that the oil passing through the through hole 14 flows back to the oil return channel 11 again is not caused.
In this embodiment, the wind power gear box further includes an oil supply device that supplies the lubricating oil 50 to the high-speed rotation chamber 12 in the box 10 to achieve lubrication of the box 10.
Since the lubricant 50 is always in the oil supply state, the lubricant 50 in the tank 10 is in the flowing state, and since the oil return speed in the oil return chamber 13 is lower than the oil supply speed in the high-speed rotation chamber 12, the liquid level surface 51 of the lubricant 50 in the oil return chamber 13 may be raised, and the oil inlet phenomenon of the oil return channel 11 may be caused. Therefore, further, the bottom wall of the box body 10 is provided with the circulation oil return hole 15, the lubricating oil 50 in the box body 10 can flow out from the circulation oil return hole 15, and a flowing direction of the lubricating oil 50 is given, so that a gap between the liquid level surface 51 of the lubricating oil 50 in the oil return channel 11 and the liquid level surface 51 of the lubricating oil 50 in the high-speed rotating chamber 12 is not excessively large, the protection of the oil return channel 11 is improved, and the tightness of the wind power gear box is further improved.
Optionally, the circulation oil return hole 15 is located at one side of the bottom of the oil baffle 40 near the high-speed rotation chamber 12, so that the lubricating oil 50 in the high-speed rotation chamber 12 and the oil return chamber 13 can flow towards the circulation oil return hole 15, and the phenomenon that the lubricating oil 50 in the oil return chamber 13 is blocked by the flowing of all the high-speed rotation chamber 12 towards the circulation oil return hole 15 is avoided, so that the liquid level difference of the two chambers is further reduced.
Further, the circulation oil return hole 15 is communicated with a circulation oil return pipeline, the circulation oil return pipeline is communicated with an oil supply device, and the oil supply device is used for supplying the lubricating oil 50 to the inside of the box 10, so that the lubricating oil 50 is recycled, and the utilization rate of the lubricating oil 50 is improved.
It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.
Claims (10)
1. Wind-powered electricity generation gear box, its characterized in that includes box (10) and output shaft (20), output shaft (20) wear to locate box (10), box (10) with be equipped with labyrinth seal structure (30) between output shaft (20), a plurality of oil return channel (11) have been seted up on box (10), the both ends of oil return channel (11) communicate in labyrinth seal structure (30) with inside high-speed rotatory cavity (12) of box (10), be equipped with lubricating oil (50) in high-speed rotatory cavity (12);
The inner wall of the box body (10) is also provided with an oil baffle (40), and the oil baffle (40) can block the oil return channel (11) and the high-speed rotating chamber (12).
2. Wind gearbox according to claim 1, characterized in that the oil deflector (40) protrudes into the lubricating oil (50).
3. Wind power gearbox according to claim 2, characterized in that at least two rib plates (60) are further arranged in the box body (10) at intervals, the oil return channel (11) is arranged between two adjacent rib plates (60), two ends of the oil baffle (40) are respectively arranged at two rib plates (60), and the oil baffle (40), the liquid level surface (51) of the lubricating oil (50) and the two rib plates (60) form an oil return cavity (13) in a surrounding mode.
4. A wind power gearbox according to claim 3, characterized in that the top wall of the oil return chamber (13) is provided with a through hole (14), and two ends of the through hole (14) are respectively communicated with the high-speed rotation chamber (12) and the tail end of the oil return channel (11).
5. A wind power gearbox according to claim 3, characterised in that the bottom wall of the box (10) is provided with a circulation oil return hole (15), and that the lubricating oil (50) in the box (10) can flow out of the circulation oil return hole (15).
6. Wind power gearbox according to claim 5, characterized in that the circulation oil return hole (15) is located at the side of the bottom of the oil deflector (40) close to the high speed rotation chamber (12).
7. Wind power gearbox according to claim 5, characterized in that the circulation oil return hole (15) communicates with a circulation oil return line which communicates with an oil supply device for supplying lubricating oil (50) to the interior of the tank (10).
8. Wind power gearbox according to claim 1, characterized in that the oil return channel (11) is arranged obliquely, the oil return channel (11) being arranged at a side close to the labyrinth seal (30) with a dimension a from the output shaft (20), the oil return channel (11) being arranged at a side close to the high-speed rotation chamber (12) with a dimension B from the output shaft (20), a < B.
9. Wind gearbox according to any of the claims 1-8, characterized in that the oil deflector (40) is screwed to the box (10) or that the oil deflector (40) is welded to the box (10).
10. Wind gearbox according to any of the claims 1-8, characterised in that the oil deflector (40) and the box body (10) are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322878989.3U CN221196014U (en) | 2023-10-26 | 2023-10-26 | Wind power gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322878989.3U CN221196014U (en) | 2023-10-26 | 2023-10-26 | Wind power gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221196014U true CN221196014U (en) | 2024-06-21 |
Family
ID=91526297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322878989.3U Active CN221196014U (en) | 2023-10-26 | 2023-10-26 | Wind power gear box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221196014U (en) |
-
2023
- 2023-10-26 CN CN202322878989.3U patent/CN221196014U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109538743B (en) | Front bearing oil lubrication mechanism of water-cooled motor and motor driving assembly | |
| JP2022546103A (en) | Oil-water double cooling electric drive assembly and new energy vehicle | |
| CN100590025C (en) | Design method of large-power rudder oar lubrication system | |
| CN109084011A (en) | A kind of transmission lubrication system | |
| CN208057908U (en) | Electric drive assembly lubricating system | |
| CN221196014U (en) | Wind power gear box | |
| CN103697148B (en) | A kind of coal-winning machine forced lubrication device and coal-winning machine | |
| CN211550500U (en) | Speed reducer shell | |
| CN215370878U (en) | Front bearing oil collecting and lubricating mechanism for vertically-arranged double-screw pump | |
| CN217271789U (en) | Gear box oil return structure and wind power gear box | |
| CN209262215U (en) | A kind of transmission lubrication system | |
| CN106594250B (en) | Lubrication mechanism for planetary gear train supporting bearing in wind power gear box | |
| CN216742752U (en) | Bearing lubricating structure of wind power gear box | |
| CN214466000U (en) | High-speed railway gearbox axletree bearing lubricating structure | |
| CN113738862A (en) | Cooling device and method for high-speed shaft bearing of wind power gearbox | |
| CN114033851A (en) | Sealed oil return structure of wind power gear box output shaft | |
| CN210978482U (en) | Power transmission device lubricating structure | |
| CN209130159U (en) | A kind of the multi-cavity lubrication and cooling device of appropriate angle speed reducer | |
| CN114593198B (en) | Speed reducer and auxiliary lubricating structure thereof | |
| CN221033261U (en) | Sealing and lubricating device for slurry pump bearing | |
| CN212455445U (en) | Wind power gear box structure and wind driven generator | |
| CN219623211U (en) | Gearbox shell lubricating structure | |
| CN219176923U (en) | Lubricating structure assembly of speed changer and power takeoff | |
| CN217152919U (en) | Motor gearbox power assembly and electric vehicle | |
| CN220910465U (en) | Oil retainer structure with transverse pre-baffle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |