CN221170749U - Main shaft bearing sealing structure and wind generating set - Google Patents
Main shaft bearing sealing structure and wind generating set Download PDFInfo
- Publication number
- CN221170749U CN221170749U CN202322861304.4U CN202322861304U CN221170749U CN 221170749 U CN221170749 U CN 221170749U CN 202322861304 U CN202322861304 U CN 202322861304U CN 221170749 U CN221170749 U CN 221170749U
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- CN
- China
- Prior art keywords
- main shaft
- sealing ring
- shaft bearing
- bearing
- sealing
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- 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.)
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Links
- 238000007789 sealing Methods 0.000 title claims abstract description 51
- 239000004519 grease Substances 0.000 claims abstract description 25
- 241001531957 Opsariichthys uncirostris Species 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009837 dry grinding Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Landscapes
- Sealing Of Bearings (AREA)
Abstract
The utility model discloses a main shaft bearing sealing structure and a wind generating set, comprising a main shaft, a bearing seat, a main shaft bearing, an end cover, a retainer ring, a sealing ring and an oil seal cover plate, wherein the main shaft bearing is arranged in the bearing seat and sleeved on the main shaft, the end covers are respectively arranged at the two ends of the bearing seat, the retainer ring is respectively arranged at the two ends of the main shaft bearing, the sealing ring is arranged between the retainer ring and the end cover, the oil seal cover plate is arranged on the end cover and beside the sealing ring, a groove is processed at one side of the retainer ring facing the sealing ring, and the lip of the sealing ring stretches into the groove to prevent grease leakage of the main shaft bearing. The utility model can effectively solve the problem of grease leakage of the main shaft bearing seal.
Description
Technical Field
The utility model relates to the technical field of sealing of a main shaft bearing of a wind generating set, in particular to a main shaft bearing sealing structure and a wind generating set.
Background
The transmission chain system is an important component of the wind generating set, and a main shaft bearing in the transmission chain system plays roles in supporting and transmitting torque, so that the lubrication of the bearing is particularly important, and the most critical point is that the sealing performance of the main shaft bearing meets the requirement. At present, in the wind power generation industry, grease leakage is mainly reduced through labyrinth seal, the labyrinth seal structure is complex, the cost is relatively high, although the grease overflow amount is smaller and smaller through the labyrinth layer by layer, if the grease amount in the bearing is more, the pressure of the grease is always larger, the impact on the sealing lip is larger, and the grease leakage is easy to cause. In addition, if the bearing is worn, the main shaft runout is increased, and the risks of direct dry grinding of the end cover and the check ring, oil gasification and the like are easily caused.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art, and provides a main shaft bearing sealing structure which can effectively solve the problem of grease leakage of the main shaft bearing.
Another object of the present utility model is to provide a wind power plant.
The aim of the utility model can be achieved by adopting the following technical scheme:
The utility model provides a main shaft bearing seal structure, includes main shaft, bearing frame, main shaft bearing, end cover, retaining ring, sealing washer and oil blanket apron, main shaft bearing installs inside the bearing frame to the suit is on the main shaft, the both ends of bearing frame are provided with the end cover respectively, main shaft bearing's both ends are provided with the retaining ring respectively, be provided with the sealing washer between retaining ring and the end cover, be provided with the oil blanket apron on the end cover and be located the other sealing washer, the retaining ring is fluted towards one side processing of sealing washer, the lip of sealing washer stretches into inside the recess to prevent main shaft bearing grease leakage.
Further, the sealing ring is of a multi-lip structure.
Further, the sealing ring comprises three lips which extend into the groove and are in interference fit with three sides of the groove respectively.
Further, the three lips are obliquely arranged along the grease overflowing direction of the main shaft bearing respectively.
Further, cavities capable of storing grease are arranged on the main body structure of the sealing ring and between every two adjacent lips.
The other object of the utility model can be achieved by adopting the following technical scheme:
A wind generating set comprises the main shaft bearing sealing structure.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
The sealing structure does not need complex labyrinth sealing, has simple structure, easy disassembly and assembly and low cost, and the lips of the sealing ring are placed in the grooves, and the three lips and the grooves form interference fit, so that the direct impact of grease on the lips of the sealing ring is effectively avoided, the sealing ring is internally provided with a cavity capable of storing the grease, more grease can be stored, the lips are tightly attached to the grooves under the pressure of the grease, the better the sealing performance is, the lubrication effect of the main shaft bearing is ensured, and meanwhile, the situation that the retainer ring and the end cover are directly and dry-ground due to the abrasion of the bearing is avoided. By adopting the sealing structure, when the spring is arranged in the sealing ring, the spring cannot be broken into the bearing even if the spring is separated.
Drawings
Fig. 1 is a cross-sectional view of a seal structure of the present utility model.
Fig. 2 is a partial schematic view of the sealing structure of the present utility model.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort based on the embodiments of the present utility model are within the scope of protection of the present utility model.
Example 1:
As shown in fig. 1 and 2, this embodiment provides a main shaft bearing sealing structure, including main shaft 1, bearing frame 2, main shaft bearing 3, end cover 4, retaining ring 5, sealing washer 6 and oil blanket apron 7, main shaft bearing 3 installs inside bearing frame 2, and the suit is on main shaft 1, the both ends of bearing frame 2 are provided with end cover 4 respectively, the both ends of main shaft bearing 3 are provided with retaining ring 5 respectively, be provided with sealing washer 6 between retaining ring 5 and the end cover 4, and be provided with oil blanket apron 7 on the end cover 4 and be located the other side of sealing washer 6, one side processing towards sealing washer 6 of retaining ring 5 has recess 501, the lip of sealing washer 6 stretches into inside recess 501, in order to prevent main shaft bearing 3 grease leakage.
Specifically, the seal ring 6 has a multi-lip structure. Taking a three-lip structure as an example, the sealing ring 6 comprises a lip 601, a lip 602 and a lip 603, the three lips extend into the groove 501 completely, so that the problem that grease leaks due to direct impact on the lips when grease in the bearing overflows more can be effectively avoided, and the lips 601, the lip 602 and the lip 603 are respectively in interference fit with three sides of the groove 501, thereby forming three seals, and greatly reducing the possibility of grease leakage.
Further, three lips incline along the grease overflowing direction of the main shaft bearing 3 respectively, and a cavity 605 capable of storing grease is arranged between the main body structure 604 of the sealing ring and every two adjacent lips, so that when more grease is stored in the cavity, the pressure is larger, the lips are tightly attached to the retainer ring 5, and the sealing effect is better.
Example 2:
the embodiment provides a wind generating set, which comprises the main shaft bearing sealing structure in embodiment 1.
The above description is only of the preferred embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the inventive conception of the present utility model equally within the scope of the disclosure of the present utility model.
Claims (6)
1. The utility model provides a main shaft bearing seal structure which characterized in that: the novel sealing device comprises a main shaft, a bearing seat, a main shaft bearing, an end cover, a check ring, a sealing ring and an oil seal cover plate, wherein the main shaft bearing is arranged inside the bearing seat and sleeved on the main shaft, the end covers are respectively arranged at the two ends of the bearing seat, the check rings are respectively arranged at the two ends of the main shaft bearing, the sealing ring is arranged between the check rings and the end cover, the oil seal cover plate is arranged on the end cover and beside the sealing ring, a groove is formed in one side of the check ring, facing the sealing ring, of the sealing ring, and the lip of the sealing ring stretches into the groove to prevent grease leakage of the main shaft bearing.
2. The spindle bearing seal arrangement of claim 1, wherein: the sealing ring is of a multi-lip structure.
3. The spindle bearing seal arrangement of claim 2, wherein: the sealing ring comprises three lips which extend into the groove and are respectively in interference fit with three sides of the groove.
4. A spindle bearing seal arrangement according to claim 3, wherein: the three lips are obliquely arranged along the grease overflow direction of the main shaft bearing respectively.
5. A spindle bearing seal arrangement according to claim 3, wherein: the main body structure of the sealing ring and the space between every two adjacent lips are provided with cavities capable of storing grease.
6. A wind generating set, characterized in that: comprising a spindle bearing seal arrangement according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322861304.4U CN221170749U (en) | 2023-10-25 | 2023-10-25 | Main shaft bearing sealing structure and wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322861304.4U CN221170749U (en) | 2023-10-25 | 2023-10-25 | Main shaft bearing sealing structure and wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221170749U true CN221170749U (en) | 2024-06-18 |
Family
ID=91436368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322861304.4U Active CN221170749U (en) | 2023-10-25 | 2023-10-25 | Main shaft bearing sealing structure and wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221170749U (en) |
-
2023
- 2023-10-25 CN CN202322861304.4U patent/CN221170749U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |