CN202048200U - Precise slip-ring oil-leak-prevention sealing structure - Google Patents
Precise slip-ring oil-leak-prevention sealing structure Download PDFInfo
- Publication number
- CN202048200U CN202048200U CN2011201306374U CN201120130637U CN202048200U CN 202048200 U CN202048200 U CN 202048200U CN 2011201306374 U CN2011201306374 U CN 2011201306374U CN 201120130637 U CN201120130637 U CN 201120130637U CN 202048200 U CN202048200 U CN 202048200U
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- Prior art keywords
- ring
- cavity
- leak
- sealing
- sealing structure
- 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
Links
- 238000007789 sealing Methods 0.000 title abstract description 21
- 238000009434 installation Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 230000006835 compression Effects 0.000 abstract 2
- 238000007906 compression Methods 0.000 abstract 2
- 238000007493 shaping process Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Sealing Devices (AREA)
Abstract
The utility model discloses a precise slip-ring oil-leak-prevention sealing structure and particularly relates to the precise slip-ring oil-leak-prevention sealing structure in which a clearance between a shaft and a cavity is larger, and the sealing position of the cavity needs to be hollow. The precise slip-ring oil-leak-prevention sealing structure comprises a sealing ring (3) as well as a cavity (1) and a shaft (2) arranged coaxially, and is characterized in that the section of the sealing ring (3) is barb-shaped and comprises an inner ring (31) and an outer ring (32); the inner ring (31) is sheathed on the shaft (2); a compression spring (4) is sheathed on the outer wall of the inner ring (31); and the outer ring (32) is pressed on the inner wall of the cavity (1) by an extension spring (5). The precise slip-ring oil-leak-prevention sealing structure has the functions that when the clearance between the shaft and the cavity is larger, and especially when the sealing position of the cavity must be hollow, the compression spring and the extension spring are used for fixing the sealing ring on the cavity and the shaft respectively, so that a good sealing effect can be realized, and the sealing structure is convenient to dismount.
Description
Technical field
The utility model relates to a kind of accurate slip ring leakproof oil seal structure, is specifically related to that a kind of axle is big with the cavity gap, the accurate slip ring leakproof oil seal structure of the necessary hollow of cavity sealing station.
Background technique
As everyone knows, axle is with the coaxial installation of cavity and require mounting or dismounting at one's leisure, will be with axle and cavity static sealing in addition, typically use the shaping packing seal, or the shaping filler of selection standard, as 0 shape ring etc., seal ring according to concrete structure fabrication given shape, its working principle is: axle and cavity be the Internal and external cycle of squeeze sealing member simultaneously, makes Sealing be out of shape, thereby Sealing is adjacent to axle and cavity respectively.But in axle and cavity gap when big, particularly when the position that cavity need seal must be hollow since axle and cavity can not be in same cross section squeeze sealing member simultaneously, make traditional shaping packing seal mode can't reach sealing effect.
The model utility content
The utility model has overcome the deficiencies in the prior art, and a kind of accurate slip ring leakproof oil seal structure is provided, and has solved prior art and can't satisfy sealing effect and simple load and unload problem simultaneously.
For solving above-mentioned technical problem, the utility model by the following technical solutions:
A kind of accurate slip ring leakproof oil seal structure, comprise cavity, axle and seal ring, wherein cavity and the coaxial installation of axle, described seal ring cross section is barb type, divide inner ring and outer ring, wherein inner ring is enclosed within on the axle, and pressure spring is enclosed within on the outer wall of inner ring, and the outer ring is pressed on the cavity inner wall by extension spring.
Further technological scheme is:
Described cavity and outer ring convex surface touching position are provided with groove.
Compared with prior art, the beneficial effects of the utility model are: in axle and cavity gap when big, particularly when the position that cavity need seal must be hollow, because pressure spring and extension spring are separately fixed at seal ring on cavity and the axle, make it can play good sealing effect, and easy accessibility.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure: 1 is cavity, and 2 is axle, and 3 is seal ring, and 4 is pressure spring, and 5 is extension spring, and 31 is inner ring, and 32 is the outer ring.
Embodiment
Below in conjunction with accompanying drawing the utility model is further elaborated.
As shown in Figure 1: a kind of accurate slip ring leakproof oil seal structure, comprise cavity 1, axle 2 and seal ring 3, wherein cavity 1 and axle 2 coaxial installations, described seal ring 3 cross sections are barb type, divide inner ring 31 and outer ring 32, its inner ring 31 is enclosed within on the axle 2, and pressure spring 4 is enclosed within on the outer wall of inner ring 31, outer ring 32 is pressed on cavity 1 inwall by extension spring 5, and described cavity 1 is provided with groove with outer ring 32 convex surface touching positions.
Claims (2)
1. accurate slip ring leakproof oil seal structure, comprise cavity (1), axle (2) and seal ring (3), wherein cavity (1) and axle (2) coaxial installation, it is characterized in that: described seal ring (3) cross section is barb type, divide inner ring (31) and outer ring (32), its inner ring (31) is enclosed within on the axle (2), and pressure spring (4) is enclosed within on the outer wall of inner ring (31), and outer ring (32) are pressed on cavity (1) inwall by extension spring (5).
2. accurate slip ring leakproof oil seal structure according to claim 1 is characterized in that: described cavity (1) is provided with groove with outer ring (32) convex surface touching position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201306374U CN202048200U (en) | 2011-04-27 | 2011-04-27 | Precise slip-ring oil-leak-prevention sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201306374U CN202048200U (en) | 2011-04-27 | 2011-04-27 | Precise slip-ring oil-leak-prevention sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202048200U true CN202048200U (en) | 2011-11-23 |
Family
ID=44988509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201306374U Expired - Fee Related CN202048200U (en) | 2011-04-27 | 2011-04-27 | Precise slip-ring oil-leak-prevention sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202048200U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676008A (en) * | 2015-03-03 | 2015-06-03 | 深圳市长江机械设备有限公司 | Sealing mechanism |
-
2011
- 2011-04-27 CN CN2011201306374U patent/CN202048200U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676008A (en) * | 2015-03-03 | 2015-06-03 | 深圳市长江机械设备有限公司 | Sealing mechanism |
| CN104676008B (en) * | 2015-03-03 | 2017-01-18 | 深圳市长江机械设备有限公司 | Sealing mechanism |
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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 |
Granted publication date: 20111123 Termination date: 20200427 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |