CN208417539U - A kind of oil-lubricated bearing sealing structure of permanent magnet synchronous wind generator - Google Patents
A kind of oil-lubricated bearing sealing structure of permanent magnet synchronous wind generator Download PDFInfo
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- CN208417539U CN208417539U CN201820901259.7U CN201820901259U CN208417539U CN 208417539 U CN208417539 U CN 208417539U CN 201820901259 U CN201820901259 U CN 201820901259U CN 208417539 U CN208417539 U CN 208417539U
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- Prior art keywords
- ring
- labyrinth
- permanent magnet
- magnet synchronous
- labyrinth ring
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Abstract
The utility model discloses a kind of oil-lubricated bearing sealing structures of permanent magnet synchronous wind generator, including interior labyrinth ring, outer labyrinth ring, inner ring and outer rings, interior labyrinth ring and outer labyrinth ring are fixed by screws on the shell of permanent magnet synchronous wind generator, the bottom of interior labyrinth ring and outer labyrinth ring is designed with individual outage, inner ring and outer rings are fixed in the shaft of permanent magnet synchronous wind generator by way of hot jacket, and using interference fit, inner ring is formed with rib in the bearing oiling block side close to permanent magnet synchronous wind generator, inner ring and interior labyrinth ring, which match, constitutes first of labyrinth seal structure, outer ring is between interior labyrinth ring and outer labyrinth ring, outer ring and outer labyrinth ring, which match, constitutes second labyrinth seal structure.The reliability of sealing, save the cost can be substantially increased under the premise of guaranteeing sealing effect using the utility model structure.
Description
Technical field
The utility model relates to the technical fields of permanent magnet synchronous wind generator, refer in particular to a kind of permanent-magnet synchronous wind-force hair
The oil-lubricated bearing sealing structure of motor.
Background technique
The bearing lubrication structure of permanent magnet synchronous wind generator is divided into grease lubrication and oil lubrication structure；Using oil lubrication structure
For bearing lubricant effect more preferably, but lubricating oil is sealed to for technical problem.In previous oil lubrication sealing
Contact type sealing structure is largely used, such as oil sealing or smears special wear-resistant material at contact surface, but is sent out in wind-force
Under the high vibration top load impact of motor, the bad working environments that requires service life that must not be lower than 25 years and can not safeguard, use
Contact seal is high for the wear-resistant material requirement of contacting points position, and thus material cost therefore can also significantly improve, and
The service life of structure does not also ensure.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, propose a kind of permanent magnet synchronous wind generator use
Oil-lubricated bearing sealing structure substantially increase reliability of structure, save the cost under the premise of guaranteeing sealing effect.
To achieve the above object, a kind of technical solution provided by the utility model are as follows: permanent magnet synchronous wind generator use
Oil-lubricated bearing sealing structure, including interior labyrinth ring, outer labyrinth ring, inner ring and outer rings, wherein the interior labyrinth ring and outer fan
Palace ring is fixed by screws on the shell of permanent magnet synchronous wind generator, and the bottom of the interior labyrinth ring and outer labyrinth ring is equal
Design has individual outage, and the inner ring and outer rings are fixed on the shaft of permanent magnet synchronous wind generator by way of hot jacket
On, and using interference fit, and the inner ring is formed with gear in the bearing oiling block side close to permanent magnet synchronous wind generator
Side can stop a large amount of lubricating oil to enter in the gap of interior labyrinth ring and inner ring, and the inner ring and interior labyrinth ring match structure
At first of labyrinth seal structure, the outer ring is between interior labyrinth ring and outer labyrinth ring, and the outer ring and outer labyrinth ring
It matches and constitutes second labyrinth seal structure.
The utility model compared with prior art, have the following advantages that with the utility model has the advantages that
1, the utility model reliability of structure is high, inherently exist between rotary part and stationary parts it is tiny between
Gap carries out oil seal by special labyrinth structure, will not be due to occurring wearing after long-play.
2, the utility model structure is realized simple, is not related to the selection issue of high abrasion resisting material, cost is relatively low.
3, inner ring and outer ring directly adopt with shaft interference fit mounting means come guarantee for a long time rotate without
It skids, when assembly can be realized using hot cover process, easy to operate.
Detailed description of the invention
Fig. 1 is the scheme of installation of the utility model structure.
Specific embodiment
The utility model is described in further detail combined with specific embodiments below.
It is shown in Figure 1, the oil-lubricated bearing sealing structure of permanent magnet synchronous wind generator provided by the present embodiment,
Including interior labyrinth ring 3, outer labyrinth ring 4, outer ring 5 and inner ring 6, wherein the interior labyrinth ring 3 and outer labyrinth ring 4 are solid by screw
It is scheduled on the shell 8 of permanent magnet synchronous wind generator, and the bottom of the interior labyrinth ring 3 and outer labyrinth ring 4 is designed with individually
Five outages (being not drawn into figure), the inner ring 6 and outer ring 5 are fixed on permanent magnetism synchronous wind generating by way of hot jacket
In the shaft 7 of machine, and using interference fit, and the inner ring 6 is in the bearing oiling block 1 one close to permanent magnet synchronous wind generator
Side is formed with rib, a large amount of lubricating oil can be stopped to enter in the gap of interior labyrinth ring and inner ring, the inner ring 6 and interior labyrinth
Ring 3, which matches, constitutes first of labyrinth seal structure, and the outer ring 5 is and described between interior labyrinth ring 3 and outer labyrinth ring 4
Outer ring 5 and outer labyrinth ring 4, which match, constitutes second labyrinth seal structure.
When lubricating oil is lubricated from the injection to generator bearing 2 of bearing oiling block 1, the rib of the design of inner ring 6
The energy a large amount of lubricating oil of resistance value enters in the gap of interior labyrinth ring 3 and inner ring 6, simultaneously because in the bottom of interior 3 cavity of labyrinth ring,
There are five outage, the oil entered in interior 3 cavity of labyrinth ring can run through outage discharge for design, may insure in this way
A large amount of lubricating oil can be separated by first of labyrinth seal structure.Outer ring 5 and outer labyrinth ring 4 constitute the second of this programme
Road labyrinth seal, in five outages of bottom same design of outer labyrinth ring cavity, when there is the lubricating oil to penetrate on outer ring 5
When, can be stopped by the second labyrinth seal structure that outer ring 5 and outer labyrinth ring 4 are constituted, add also due to
The bottom of outer 4 cavity of labyrinth ring is also configured with five outages, and the oil entered in outer 4 cavity of labyrinth ring in this way can also be rapid
It is discharged by outage, thus outflow when preventing lubricating oil from rotating with motor.
The examples of implementation of the above are only the preferred embodiment of the utility model, not limit the utility model with this
Practical range, therefore all shapes according to the utility model, change made by principle, it should all cover in the protection scope of the utility model
It is interior.
Claims (1)
1. a kind of oil-lubricated bearing sealing structure of permanent magnet synchronous wind generator, it is characterised in that: including interior labyrinth ring, outside
Labyrinth ring, inner ring and outer rings, wherein the interior labyrinth ring and outer labyrinth ring are fixed by screws in permanent magnet synchronous wind generator
Shell on, and the bottom of the interior labyrinth ring and outer labyrinth ring is designed with individual outage, and the inner ring and outer rings are logical
The mode for crossing hot jacket is fixed in the shaft of permanent magnet synchronous wind generator, and using interference fit, and the inner ring is close
The bearing oiling block side of permanent magnet synchronous wind generator is formed with rib, and a large amount of lubricating oil can be stopped to enter interior labyrinth ring
In the gap of inner ring, the inner ring and interior labyrinth ring match and constitute first of labyrinth seal structure, and the outer ring is located at interior
Between labyrinth ring and outer labyrinth ring, and the outer ring and outer labyrinth ring match and constitute second labyrinth seal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820901259.7U CN208417539U (en) | 2018-06-11 | 2018-06-11 | A kind of oil-lubricated bearing sealing structure of permanent magnet synchronous wind generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820901259.7U CN208417539U (en) | 2018-06-11 | 2018-06-11 | A kind of oil-lubricated bearing sealing structure of permanent magnet synchronous wind generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208417539U true CN208417539U (en) | 2019-01-22 |
Family
ID=65111587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820901259.7U Active CN208417539U (en) | 2018-06-11 | 2018-06-11 | A kind of oil-lubricated bearing sealing structure of permanent magnet synchronous wind generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208417539U (en) |
-
2018
- 2018-06-11 CN CN201820901259.7U patent/CN208417539U/en active Active
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| GR01 | Patent grant |