CN202360725U - Sealing structure for wind turbine gearbox - Google Patents
Sealing structure for wind turbine gearbox Download PDFInfo
- Publication number
- CN202360725U CN202360725U CN 201120523043 CN201120523043U CN202360725U CN 202360725 U CN202360725 U CN 202360725U CN 201120523043 CN201120523043 CN 201120523043 CN 201120523043 U CN201120523043 U CN 201120523043U CN 202360725 U CN202360725 U CN 202360725U
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- external diameter
- sealing structure
- annular
- circular groove
- 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
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- Sealing Devices (AREA)
Abstract
The utility model relates to a sealing structure for a wind turbine gearbox. The sealing structure comprises a rotating shaft, a shell and a bearing. The rotating shaft is mounted on the shell through the bearing; an oil path is arranged on the shell and is communicated with an oil path inside the rotating shaft; two to three annular grooves are arranged on each one of the two sides of the oil path of the rotating shaft; an annular expansion ring with a notch is mounted in each annular groove; the annular expansion rings are made of metal; the width of the annular expansion rings is less than the width of the annular grooves; the external diameter of the annular expansion rings are matched with the shell; and the internal diameter of the annular expansion rings is more than the external diameter of the annular grooves, and is less than the external diameter of the rotating shaft. The sealing structure provided by the utility model is difficult to fail when the sealing structure works in a severe condition for a long time, so as to effectively prevent lubricating oil from leaking or prevent external dust from entering, and achieve a good sealing effect.
Description
Technical field
The utility model relates to a kind of sealing configuration, especially a kind of sealing configuration of wind-powered electricity generation gear-box.
Background technique
The wind-powered electricity generation gear-box is the vital tissue part of wind power system, and therefore its work under the environment that exposes for a long time require its sealing configuration requirement higher.Present sealing configuration generally adopts sealing gasket, cushion rubber to seal.Because wind-powered electricity generation gear-box work under bad environment, the rubber parts sealing was very easily lost efficacy, and got into casing internal contamination lubricant oil because the seal failure meeting causes leakage of oil or external dust etc. often, caused the wind-powered electricity generation gearbox fault.
Summary of the invention
The purpose of the utility model provides a kind of sealing configuration that can under the environment harsh conditions, effectively work, and its sealing configuration is difficult for losing efficacy, and guarantees that the operation of wind power system is effectively reliable.
The technological scheme of the utility model is: the sealing configuration of wind-powered electricity generation gear-box has comprised running shaft, housing, bearing; Described running shaft passes through Bearing Installation on housing; Housing is provided with oil circuit and communicates with the oil circuit of interior of rotating shaft, and the oil circuit both sides of described interior of rotating shaft respectively are provided with 2～3 road circular grooves, and nicked annular piston ring respectively is installed in each circular groove; The material of described annular piston ring is a metal; Width is less than the width of circular groove, external diameter and shell, and internal diameter is greater than the external diameter of circular groove and less than the external diameter of running shaft.Described circular groove is preferably 2.
The utility model in use because the annular piston ring that seals is a metal, long-term rugged environment down work be difficult for inefficacy; The annular piston ring has otch, can be implemented in the installation in the circular groove, and the width of annular piston ring is less than the width of the circular groove on the running shaft; In use, can adjust the position of annular piston ring in circular groove according to the difference of pressure at both sides; Make it near the little side of pressure; Pressure reduction is big more, and it is tight more to fit, and effectively prevents the leakage of lubricating oil or the entering of external dust; Annular piston ring and shell, internal diameter makes annular piston ring and circular groove internal diameter exist the gap greater than the external diameter of circular groove and less than the external diameter of running shaft; The medium that pressure is bigger acts on annular piston ring inner cylindrical surface and annular piston ring is opened to radial outside; Strengthened the power that is adjacent to of its external diameter and housing, when rotating shaft is rotated, driven the inboard working medium of annular piston ring and rotate; The radial centrifugal force that produces further makes has strengthened the power of being adjacent to, and reaches sealing effect.The test of the seal arrangement that the multiple tracks piston ring is formed shows that the seal action of the 3rd road piston ring is very not obvious, has just increased friction horsepower consumption accordingly, so piston ring is not The more the better, effectively is to be arranged to twice.
Description of drawings
Fig. 1 is the structural representation of the utility model
Embodiment
As shown in Figure 1; The sealing configuration of wind-powered electricity generation gear-box has comprised running shaft 1, housing 2, bearing 3, and described running shaft 1 is installed on the housing 2 through bearing 3, and housing 2 is provided with oil circuit 4 and communicates with the oil circuit 5 of interior of rotating shaft; Internal oil passages 5 both sides of described running shaft 1 respectively are provided with 2～3 road circular grooves 6; Nicked annular piston ring 7 respectively is installed in each circular groove 6, and the material of described annular piston ring 7 is a metal, and width is less than the width of circular groove; External diameter cooperates with housing 2, and internal diameter is greater than the external diameter of circular groove 6 and less than the external diameter of running shaft 1.Described circular groove 6 is preferably 2.
Claims (2)
1. the sealing configuration of a wind-powered electricity generation gear-box is characterized in that, structure has comprised running shaft (1), housing (2), bearing (3); Described running shaft (1) is installed on the housing (3) through bearing (2); Housing (3) is provided with oil circuit (4) and communicates with the oil circuit (5) of interior of rotating shaft, and the oil circuit of described interior of rotating shaft (5) both sides respectively are provided with 2～3 road circular grooves (6), and nicked annular piston ring (7) respectively is installed in each circular groove (6); The material of described annular piston ring (7) is a metal; Width is less than the width of circular groove (6), and external diameter cooperates with housing (2), and internal diameter is greater than the external diameter of circular groove (6) and less than the external diameter of running shaft (1).
2. the sealing configuration of wind-powered electricity generation gear-box as claimed in claim 1 is characterized in that, described circular groove (6) is 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120523043 CN202360725U (en) | 2011-12-13 | 2011-12-13 | Sealing structure for wind turbine gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120523043 CN202360725U (en) | 2011-12-13 | 2011-12-13 | Sealing structure for wind turbine gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202360725U true CN202360725U (en) | 2012-08-01 |
Family
ID=46571914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120523043 Expired - Fee Related CN202360725U (en) | 2011-12-13 | 2011-12-13 | Sealing structure for wind turbine gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202360725U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518786A (en) * | 2011-12-13 | 2012-06-27 | 哈尔滨东安发动机（集团）有限公司 | Sealing structure of wind power gear box |
-
2011
- 2011-12-13 CN CN 201120523043 patent/CN202360725U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518786A (en) * | 2011-12-13 | 2012-06-27 | 哈尔滨东安发动机（集团）有限公司 | Sealing structure of wind power gear box |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120801 Termination date: 20171213 |