CN104197019B - Multi-sealing structure - Google Patents
Multi-sealing structure Download PDFInfo
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- CN104197019B CN104197019B CN201410403600.2A CN201410403600A CN104197019B CN 104197019 B CN104197019 B CN 104197019B CN 201410403600 A CN201410403600 A CN 201410403600A CN 104197019 B CN104197019 B CN 104197019B
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- seal
- oil baffle
- baffle disc
- diameter
- bearing
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Abstract
The present invention relates to a kind of multi-sealing structure, comprise mount pad 1, seal cartridge 2, seal receptacle 5, thread seal ring 6, oil baffle disc 7, rotating shaft 3, bearing 4, bearing 4 is arranged on rotating shaft 3, one side be disposed with oil baffle disc 7, thread seal ring 6, on the outer shroud of bearing 4, coordinate seal cartridge 2 is installed, described seal cartridge 2 is arranged on mount pad 1, is also installed with seal receptacle 5 on mount pad 1, the internal diameter of seal receptacle 5 scribbles graphite, is provided with sealing castor tooth on the external diameter of oil baffle disc 7. The present invention can realize the sealing between high pressure, high-revolving parts, realizes good sealing effect, has the life-span high, the features such as good reliability.
Description
Technical field
The present invention relates to a kind of hermetically-sealed construction, especially a kind of multi-sealing structure.
Background technology
Existing mechanical system has multiple dynamic sealing device, reveals, at present in order to realize the lubricating oil stoping between sound partsUse and include comparatively widely threaded sealing structure, castor tooth hermetically-sealed construction, graphite grazing structure etc., then for some machinerySystem, as aero-engine, its inner chamber lubricating oil pressure is high, dynamic component velocity of rotation is high, current conventional hermetically-sealed construction orEffect is undesirable, or service life is low, can not meet the requirement of system.
Summary of the invention
The object of this invention is to provide a kind of hermetically-sealed construction, can realize the sealing between high pressure, high-revolving parts,Realize good sealing effect, the feature such as the life-span is high, good reliability.
Technical scheme of the present invention is that multi-sealing structure comprises mount pad, seal cartridge, seal receptacle, thread sealRing, oil baffle disc, rotating shaft, bearing, bearing is arranged on rotating shaft, and a side is by the shaft shoulder location arranging on rotating shaft, anotherOne side be disposed with oil baffle disc, thread seal ring, the internal diameter of described thread seal ring is stairstepping, the part that diameter is littleBe fixed on rotating shaft and with rotating shaft synchronous rotary with oil baffle disc, the interior loop contacts of oil baffle disc and bearing, joins on the outer shroud of bearingClose installation seal cartridge, described seal cartridge is arranged on mount pad, is also installed with seal receptacle on mount pad, sealing liningThe internal diameter of cover coordinates with the external diameter of oil baffle disc, and the internal diameter that external diameter is large with the diameter of thread seal ring coordinates, the external diameter of thread seal ringCoordinate with the internal diameter of seal receptacle, on the inner-diameter portion whose that the diameter of described thread seal ring is large and external diameter, be provided with sealing thread, closeThe internal diameter of envelope seat scribbles graphite, is provided with sealing castor tooth on the external diameter of oil baffle disc. In described multi-sealing structure one of low oil pressureSide is provided with compressed air cell, and described compressed air cell is connected with high-pressure air pipe. On described oil baffle disc, be provided with and get rid of oilDish, described disc is positioned at compressed air cell, and a side relative with bearing is provided with inclined-plane. The external diameter of described seal receptacleOn be provided with large sealing packing ring, on the internal diameter of oil baffle disc, be provided with small sealing ring with the position of thread seal loop contacts.
The present invention has used the forms such as thread seal, the sealing of castor tooth, graphite grazing, good sealing effect, simple in structure, easyProcess and assemble. In multiple whorl sealing device, oil baffle disc is set, the lubricating oil stopping and collect is got rid of to bearing, bearing is carried outLubrication and cooling, and stop the lubricating oil of lubricating bearings to flow out. In addition, in this structure, also introduce compressed air, profit from compressorWith a high pressure chest of compressed air formation, oppositely promote fluid and reflux, further enhanced leaktightness effect. The present invention can realize highSealing between pressure, high-revolving parts, realizes good sealing effect, has the life-span high, the features such as good reliability.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
As shown in the figure, multi-sealing structure comprises mount pad 1, seal cartridge 2, seal receptacle 5, thread seal ring 6, gearFood tray 7, rotating shaft 3, bearing 4, bearing 4 is arranged on rotating shaft 3, and a side is fixed by the shaft shoulder arranging on rotating shaft 3Position, opposite side be disposed with oil baffle disc 7, thread seal ring 6, the internal diameter of described thread seal ring 6 is stairstepping,The part that diameter is little and oil baffle disc 7 are fixed on rotating shaft 3 and with rotating shaft 3 synchronous rotaries, in oil baffle disc 7 and bearing 4Loop contacts, coordinates seal cartridge 2 is installed on the outer shroud of bearing 4, and described seal cartridge 2 is arranged on mount pad 1, installsOn seat 1, be also installed with seal receptacle 5, the internal diameter of seal cartridge 2 coordinates with the external diameter of oil baffle disc 7, external diameter and thread sealThe large internal diameter of diameter of ring 6 coordinates, and the external diameter of thread seal ring 6 coordinates with the internal diameter of seal receptacle 5, described thread seal ringOn the inner-diameter portion whose that 6 diameter is large and external diameter, be provided with sealing thread, the internal diameter of seal receptacle 5 scribbles graphite, outside oil baffle disc 7On footpath, be provided with sealing castor tooth. In described multi-sealing structure, a side of low oil pressure is provided with compressed air cell 8, described pressureContracting air chamber is connected with high-pressure air pipe. On described oil baffle disc 7, be provided with disc 9, described disc 9 is positioned at compressionIn air chamber 8, a side relative with bearing is provided with inclined-plane. On the external diameter of described seal receptacle 5, be provided with large sealing packing ring11, the position contacting with thread seal ring 6 on the internal diameter of oil baffle disc 7 is provided with small sealing ring 10.
Claims (4)
1. a multi-sealing structure, is characterized in that, described structure comprises mount pad (1), seal cartridge (2), seal receptacle(5), thread seal ring (6), oil baffle disc (7), rotating shaft (3), bearing (4), bearing (4) is arranged on rotating shaft(3) upper, a side is by the upper shaft shoulder location arranging of rotating shaft (3), opposite side be disposed with oil baffle disc (7), screw threadSealing ring (6), the internal diameter of described thread seal ring (6) is stairstepping, the part that diameter is little and oil baffle disc (7) are fixed onOn rotating shaft (3) and with rotating shaft (3) synchronous rotary, the interior loop contacts of oil baffle disc (7) and bearing (4), bearing(4) on outer shroud, coordinate seal cartridge (2) is installed, it is upper that described seal cartridge (2) is arranged on mount pad (1), installsOn seat (1), be also installed with seal receptacle (5), the internal diameter of seal cartridge (2) coordinates with the external diameter of oil baffle disc (7), outerThe footpath internal diameter large with the diameter of thread seal ring (6) coordinates, the internal diameter of the external diameter of thread seal ring (6) and seal receptacle (5)Coordinate, on the inner-diameter portion whose that the diameter of described thread seal ring (6) is large and external diameter, be provided with sealing thread, seal receptacle (5)Internal diameter scribble graphite, on the external diameter of oil baffle disc (7), be provided with sealing castor tooth.
2. multi-sealing structure as claimed in claim 1, is characterized in that, in described multi-sealing structure, a side of low oil pressure is establishedBe equipped with compressed air cell (8), described compressed air cell (8) is connected with high-pressure air pipe.
3. multi-sealing structure as claimed in claim 1, is characterized in that, on described oil baffle disc (7), is provided with disc(9), described disc (9) is positioned at compressed air cell (8), and a side relative with bearing (4) is provided with inclined-plane.
4. multi-sealing structure as claimed in claim 1, is characterized in that, is provided with close greatly on the external diameter of described seal receptacle (5)Seal (11), the position contacting with thread seal ring (6) on the internal diameter of oil baffle disc (7) is provided with small sealing ring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410403600.2A CN104197019B (en) | 2014-08-15 | 2014-08-15 | Multi-sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410403600.2A CN104197019B (en) | 2014-08-15 | 2014-08-15 | Multi-sealing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104197019A CN104197019A (en) | 2014-12-10 |
| CN104197019B true CN104197019B (en) | 2016-05-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410403600.2A Active CN104197019B (en) | 2014-08-15 | 2014-08-15 | Multi-sealing structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN104197019B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065673B (en) * | 2015-07-16 | 2017-06-20 | 江苏航天水力设备有限公司 | A kind of dual-thread seal device of pump turbine |
| CN105650253A (en) * | 2016-03-21 | 2016-06-08 | 哈尔滨东安发动机（集团）有限公司 | Oil seepage preventing device for helicopter main reducing gear |
| CN115095725B (en) * | 2022-07-04 | 2024-02-06 | 东风（十堰）汽车管业有限公司 | Multi-level sealing structure of high-pressure oil pipe |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU581349A1 (en) * | 1975-05-21 | 1977-11-25 | Московское Технологическое Бюро Союзглавподшипника | Stationary seal for bearing units |
| CN1699800A (en) * | 2004-05-18 | 2005-11-23 | 郑小平 | Mechanical sealing device |
| CN101413588A (en) * | 2008-11-24 | 2009-04-22 | 江苏泰隆减速机股份有限公司 | Non-seepage drive seal device |
| CN201407355Y (en) * | 2009-04-24 | 2010-02-17 | 哈尔滨东安发动机（集团）有限公司 | Thread sealing device |
| CN203201959U (en) * | 2013-04-09 | 2013-09-18 | 中国航空动力机械研究所 | Sealing nut |
| CN204083232U (en) * | 2014-08-15 | 2015-01-07 | 哈尔滨东安发动机（集团）有限公司 | Multi-sealing structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012132546A (en) * | 2010-12-24 | 2012-07-12 | Jtekt Corp | Rolling bearing |
-
2014
- 2014-08-15 CN CN201410403600.2A patent/CN104197019B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU581349A1 (en) * | 1975-05-21 | 1977-11-25 | Московское Технологическое Бюро Союзглавподшипника | Stationary seal for bearing units |
| CN1699800A (en) * | 2004-05-18 | 2005-11-23 | 郑小平 | Mechanical sealing device |
| CN101413588A (en) * | 2008-11-24 | 2009-04-22 | 江苏泰隆减速机股份有限公司 | Non-seepage drive seal device |
| CN201407355Y (en) * | 2009-04-24 | 2010-02-17 | 哈尔滨东安发动机（集团）有限公司 | Thread sealing device |
| CN203201959U (en) * | 2013-04-09 | 2013-09-18 | 中国航空动力机械研究所 | Sealing nut |
| CN204083232U (en) * | 2014-08-15 | 2015-01-07 | 哈尔滨东安发动机（集团）有限公司 | Multi-sealing structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104197019A (en) | 2014-12-10 |
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