CN220850751U - Flexible labyrinth seal system - Google Patents
Flexible labyrinth seal system Download PDFInfo
- Publication number
- CN220850751U CN220850751U CN202322669629.2U CN202322669629U CN220850751U CN 220850751 U CN220850751 U CN 220850751U CN 202322669629 U CN202322669629 U CN 202322669629U CN 220850751 U CN220850751 U CN 220850751U
- Authority
- CN
- China
- Prior art keywords
- flexible
- oil
- main shaft
- labyrinth seal
- seal system
- 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
- 230000007423 decrease Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 10
- 230000000903 blocking effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a flexible labyrinth seal system, comprising: the end cover is arranged on the main shaft, an oil cavity is formed between the end cover and the main shaft, and an oil return channel is arranged on the end cover; the flexible oil retainer is sleeved on the main shaft and positioned in the oil cavity; and a limiting structure is arranged on the main shaft and used for limiting the movement of the flexible oil retainer. According to the utility model, an oil cavity is formed between the end cover and the main shaft, and the flexible oil retainer is arranged on the main shaft through the limiting structure, so that a labyrinth can be formed between the flexible oil retainer and the end cover shell, and therefore, the flowing oil can be effectively blocked. Meanwhile, the flexible oil retainer is made of flexible materials, so that damage caused by labyrinth system components in the installation and operation processes of the wind turbine generator can be avoided, and the flexible oil retainer is flexible in design, so that the flexible oil retainer is easy to install and convenient to maintain.
Description
Technical Field
The utility model relates to the field of spindle bearing sealing, in particular to a flexible labyrinth sealing system.
Background
With the development of the wind turbine generator in the light weight direction, the eccentric/jumping amount of the wind turbine generator is increased, so that higher requirements on lubrication are provided. At present, the main shaft of the unit is lubricated by spraying oil injection, but the traditional main shaft sealing system cannot effectively block leaked oil, has poor sealing effect and cannot realize cyclic utilization of working media.
Disclosure of utility model
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the flexible labyrinth sealing system, which can effectively improve the sealing effect of the flexible labyrinth sealing system.
A flexible labyrinth seal system according to an embodiment of the utility model includes:
the end cover is arranged on the main shaft, an oil cavity is formed between the end cover and the main shaft, and an oil return channel is arranged on the end cover;
The flexible oil retainer is sleeved on the main shaft and positioned in the oil cavity; and the main shaft is provided with a limiting structure, and the limiting structure is used for limiting the flexible oil retainer to move.
The flexible labyrinth seal system according to the embodiment of the utility model has at least the following beneficial effects:
An oil cavity is formed between the end cover and the main shaft, and the flexible oil retainer is mounted on the main shaft through the limiting structure, so that a labyrinth can be formed with the shell of the end cover, and outflow oil can be effectively blocked. Meanwhile, the flexible oil retainer is made of flexible materials, so that damage caused by labyrinth system components in the installation and operation processes of the wind turbine generator can be avoided, and the flexible oil retainer is flexible in design, so that the flexible oil retainer is easy to install and convenient to maintain.
According to some embodiments of the utility model, the limiting structure is an annular limiting groove arranged on the main shaft, and the flexible oil retainer is clamped in the annular limiting groove.
According to some embodiments of the utility model, flexible interference structures are arranged on two sides of the flexible oil retainer close to the main shaft area, and the flexible oil retainer is in interference clamping connection with the annular limiting groove through the flexible interference structures.
According to some embodiments of the utility model, the flexible interference structure is a wave-like structure.
According to some embodiments of the utility model, the flexible slinger has a higher thickness on a side of the spindle adjacent to the spindle than on a side of the spindle remote from the spindle.
According to some embodiments of the utility model, the flexible slinger decreases in thickness from a side proximate the spindle to a side distal from the spindle.
According to some embodiments of the utility model, the flexible slinger is configured in cross-sectional shape as an "r".
According to some embodiments of the utility model, the flexible oil slinger is provided with a plurality of limiting structures, and the limiting structures are provided with a plurality of limiting structures in one-to-one correspondence with the flexible oil slingers.
According to some embodiments of the utility model, the flexible slinger employs a rubber slinger.
According to some embodiments of the utility model, the oil return passage communicates to the gearbox.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The utility model is further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic cross-sectional view of a flexible labyrinth seal system according to one embodiment of the present utility model;
fig. 2 is a schematic cross-sectional view of a flexible slinger according to an embodiment of the present utility model.
Reference numerals:
End cap 100, oil return passage 110, oil chamber 120,
Flexible oil slinger 200, flexible interference structure 210,
And a main shaft 300.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the direction or positional relationship indicated with respect to the description of the orientation, such as up, down, etc., is based on the direction or positional relationship shown in the drawings, is merely for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, plural means two or more. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Referring to fig. 1, fig. 1 is a schematic cross-sectional structure of a flexible labyrinth seal system according to an embodiment of the present utility model, the flexible labyrinth seal system including: an end cap 100 and a flexible slinger 200;
The end cover 100 is arranged on the main shaft 300, an oil cavity 120 is formed between the end cover 100 and the main shaft 300, and an oil return channel 110 is arranged on the end cover 100;
A flexible oil slinger 200, which is sleeved on the main shaft 300 and is positioned in the oil cavity 120; the main shaft 300 is provided with a limiting structure for limiting the movement of the flexible slinger 200.
Referring to fig. 1, the end cover 100 is also of a ring structure, and is disposed at one side of a fan main shaft bearing, and between both sides of the end cover 100 and the main shaft 300, an oil chamber 120 is formed between the end cover 100 and the main shaft 300 by sealing. And be provided with limit structure on this section main shaft 300 that is arranged in oil pocket 120, flexible oil retainer 200 then can accomplish spacingly through limit structure after cup jointing on main shaft 300, avoids because the existence of fluid leads to moving at will. After the flexible slinger 200 is disposed within the oil chamber 120, the oil chamber 120 is caused to become a labyrinth structure.
In the flexible labyrinth sealing system of the embodiment of the utility model, the oil cavity 120 between the end cover 100 and the main shaft 300, and the flexible oil retainer 200 can form a labyrinth with the outer shell of the end cover 100 after being mounted on the main shaft 300 through the limiting structure, so that the flowing oil can be effectively blocked, and in addition, the oil can be recycled by utilizing the oil return channel 110, so that the accumulation of the oil is avoided. Meanwhile, the flexible oil retainer 200 is made of flexible materials, so that damage caused by labyrinth system components in the installation and operation processes of the wind turbine generator can be avoided, and the flexible oil retainer 200 is flexible in design, so that the flexible oil retainer is easy to install and convenient to maintain.
In some embodiments, the limiting structure is an annular limiting groove arranged on the main shaft 300, and the flexible oil retainer 200 is clamped in the annular limiting groove. Referring to fig. 1, the flexible oil slinger 200 can be clamped by using the annular limiting groove, and the flexible oil slinger 200 is limited by using the annular limiting groove, so that the flexible oil slinger 200 is convenient to install.
In some embodiments, the flexible oil retainer 200 is provided with a flexible interference structure 210 at the two sides of the flexible oil retainer 200 near the main shaft 300, and the flexible oil retainer 200 is in interference clamping connection with the annular limiting groove through the flexible interference structure 210. Referring to fig. 1 and 2, after the flexible oil slinger 200 is clamped in the annular limiting groove, the flexible interference structure 210 can tightly clamp the flexible oil slinger 200 in the annular limiting groove.
In some embodiments, the flexible interference structure 210 is a wave-like structure. Referring to fig. 1 and 2, the wave-shaped structure can effectively increase the contact area with the annular limiting groove, and can be better matched with the main shaft 300 to prevent oil leakage.
Referring to fig. 2, in some embodiments, the thickness of the flexible slinger 200 on the side closer to the spindle 300 is greater than the thickness of the spindle 300 on the side farther from the spindle 300. The high inner thickness can facilitate stable installation of the flexible slinger 200.
Referring to fig. 2, in some embodiments, flexible slinger 200 decreases in thickness from a side proximal to spindle 300 to a side distal from spindle 300. The smaller the area is, the better the flexibility of rubber materials can be, and the gradual change structural design can better utilize the advantage, so that the purpose of flexible oil blocking can be better realized.
Referring to fig. 2, in some embodiments, the flexible slinger 200 is provided with an "r" shaped cross-sectional shape. The oil seal is arranged in an r shape, and the offset direction is arranged towards the oil seal side, so that blocking of oil liquid is better realized.
Referring to fig. 1, in some embodiments, the flexible oil slinger 200 is provided in plurality, the stopper structure is provided in plurality, and the stopper structures are provided in plurality in one-to-one correspondence with the flexible oil slingers 200. The plurality of flexible oil slingers 200 can better complete the blocking of oil, and the specific number of the flexible oil slingers can reasonably adjust the size of the oil cavity 120. When a plurality of flexible slingers 200 are used, the flexible slingers may be disposed at equal intervals, or may be disposed at unequal intervals with respect to the specific structure of the oil chamber 120.
In some embodiments, the flexible slinger 200 employs a rubber slinger. The elasticity of the rubber is good, the rubber is smooth, and sealing and oil blocking can be better realized.
In some embodiments, the oil return passage 110 communicates to the gearbox. The oil return channel 110 can return the blocked oil to the gear box for direct recycling. It should be noted that, when the present invention is applied to different application scenarios, the oil return passage 110 may be connected to different devices or oil tanks, and may not necessarily need to be returned to the gearbox.
For a better understanding of the seals of the embodiments of the present utility model, specific embodiments are described herein.
In this embodiment, two annular limiting grooves are formed in the main shaft 300, a corresponding flexible oil retainer 200 is correspondingly arranged in each annular limiting groove, the thickness of each flexible oil retainer 200 is gradually reduced from inside to outside, wavy structures are arranged on two sides of each flexible oil retainer 200, the wavy structures and the flexible oil retainer 200 are integrally formed, and the wavy structures adopt interference structural design, so that the flexible oil retainer 200 can be integrally arranged in each annular limiting groove by utilizing the wavy structures, and therefore, after the flexible oil retainer 200 is arranged in the whole oil cavity, a flexible labyrinth oil seal structure is formed, blocking of oil can be effectively achieved, and blocked oil can be guided by the oil return channel 110 to a gear box, so that recycling is completed. Meanwhile, the interface of the flexible oil slinger 200 is provided in an r shape, and the offset direction is provided toward the oil seal side, so that the blocking effect on the oil can be further improved.
The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.
Claims (10)
1. A flexible labyrinth seal system, comprising:
the end cover is arranged on the main shaft, an oil cavity is formed between the end cover and the main shaft, and an oil return channel is arranged on the end cover;
The flexible oil retainer is sleeved on the main shaft and positioned in the oil cavity; and the main shaft is provided with a limiting structure, and the limiting structure is used for limiting the flexible oil retainer to move.
2. The flexible labyrinth seal system of claim 1, wherein the limiting structure is an annular limiting groove provided on the main shaft, and the flexible oil retainer is clamped in the annular limiting groove.
3. The flexible labyrinth seal system of claim 2, wherein flexible oil slingers are provided with flexible interference structures on both sides of the flexible oil slingers adjacent to the main shaft region, and the flexible oil slingers are in interference clamping connection with the annular limiting grooves through the flexible interference structures.
4. A flexible labyrinth seal system as claimed in claim 3, wherein the flexible interference structure is a wave-like structure.
5. The flexible labyrinth seal system of claim 4, wherein said flexible oil slinger has a higher thickness on a side proximate said main shaft than on a side distal from said main shaft.
6. The flexible labyrinth seal system of claim 4, wherein said flexible slinger decreases in thickness from a side proximate said main shaft to a side distal from said main shaft.
7. A flexible labyrinth seal system as claimed in claim 5 or claim 6, wherein the cross-sectional shape of the flexible slinger is provided as an "r" shape.
8. The flexible labyrinth seal system of claim 1, wherein a plurality of said flexible slingers are provided, a plurality of said spacing structures are provided, and a plurality of said spacing structures are provided in one-to-one correspondence with a plurality of said flexible slingers.
9. The flexible labyrinth seal system of claim 1, wherein said flexible oil slinger is a rubber slinger.
10. The flexible labyrinth seal system of claim 1, wherein the oil return passage communicates to a gearbox.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322669629.2U CN220850751U (en) | 2023-09-28 | 2023-09-28 | Flexible labyrinth seal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322669629.2U CN220850751U (en) | 2023-09-28 | 2023-09-28 | Flexible labyrinth seal system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220850751U true CN220850751U (en) | 2024-04-26 |
Family
ID=90782542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322669629.2U Active CN220850751U (en) | 2023-09-28 | 2023-09-28 | Flexible labyrinth seal system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220850751U (en) |
-
2023
- 2023-09-28 CN CN202322669629.2U patent/CN220850751U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN220850751U (en) | Flexible labyrinth seal system | |
| CN212959552U (en) | Sealing structure of bearing for belt pulley of decoupler built in automobile generator | |
| CN211481045U (en) | Motor output waterproof construction | |
| CN204716987U (en) | Ring type magnetic suspension running shaft magnetic fluid sealing structure | |
| CN207880077U (en) | A kind of rotation PTFE oil sealings | |
| CN214578832U (en) | Rubber seal ring with oil storage structure on inner ring | |
| CN211423186U (en) | High-speed grease lubrication deep groove ball bearing | |
| CN220850742U (en) | Sealing system | |
| CN209800550U (en) | Annular double-labyrinth multi-lip spring energy storage sealing device for wind power main bearing | |
| CN111677558A (en) | Grate tooth type sealing mechanism applied to gas turbine lubricating oil system | |
| CN211852796U (en) | Sealing structure of non-oil-cooled power motor for new energy automobile | |
| CN117231744A (en) | Sealing system | |
| CN217814585U (en) | Multi-labyrinth multi-lip linear spring locking rubber sealing device for wind power bearing | |
| CN215567946U (en) | Formula sealing device turns back | |
| CN215763271U (en) | Axial sealing device for ball screw | |
| CN209781486U (en) | Annular double-labyrinth multi-lip linear spring locking rubber sealing device for wind power main bearing | |
| CN212331731U (en) | Lubricating oil seal device for injection molding machine | |
| CN216618543U (en) | Groove-shaped oil return line structure | |
| CN220204436U (en) | Rolling bearing with oil leakage prevention structure | |
| CN209856242U (en) | Need not contact oil seal structure | |
| CN207921338U (en) | Turbine-generator units bearing oil groove sealing device | |
| CN218844877U (en) | High-efficiency grease-leakage-proof rolling bearing | |
| CN209800551U (en) | Annular single-labyrinth multi-lip linear spring locking rubber sealing device for wind power main bearing | |
| CN216812843U (en) | Air-permeable anti-leakage rubber sealing ring | |
| CN216519588U (en) | Long-service-life low-friction rubber oil seal for motor rotating shaft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |