CN202402640U - Axial combination seal - Google Patents
Axial combination seal Download PDFInfo
- Publication number
- CN202402640U CN202402640U CN2011204605293U CN201120460529U CN202402640U CN 202402640 U CN202402640 U CN 202402640U CN 2011204605293 U CN2011204605293 U CN 2011204605293U CN 201120460529 U CN201120460529 U CN 201120460529U CN 202402640 U CN202402640 U CN 202402640U
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- Prior art keywords
- arc
- annular ring
- drift angle
- utility
- model
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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.)
- Expired - Fee Related
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to an axial combination seal, which comprises an annular ring. An arc is arranged on one inner edge of the annular ring, and a drift angle is arranged at the position of a sealing lip provided with the arc. The radius of the arc is 1mm-3mm, and the drift angle is 5 degrees to 10 degrees. Due to the fact that the arc is arranged on the inner edge of the annular ring and the drift angle is arranged at the position of the sealing lip provided with the arc, the axial combination seal can avoid material flowing, namely lip material flowing, at the position of the sealing lip and the edge. Sealing effect cannot be reduced due to material flowing space, and the axial combination seal can prevent quality problems of piston rod external leakage.
Description
Technical field
The utility model relates to a kind of with the combination envelope, and particularly a kind of axle that is used on the hydraulic cylinder piston rod is used the combination envelope, belongs to oil hydraulic cylinder component technical field.
Background technique
Oil hydraulic cylinder is the important executive component of constructional engineering machinery, and its quality of stability directly affects the working efficiency and the reliability of constructional engineering machinery.But the quality problems of piston rod external leakage in use often take place in oil hydraulic cylinder, and the main cause that causes the hydraulic cylinder piston rod external leakage is that rod seal was lost efficacy.The main sealing configuration of piston rod is single lip dust ring+low pressure seal (Y shape circle) ten high pressure sealings (axle is with the combination envelopes) at present; Nowadays axle is unreasonable with the design of combination envelope; Make lip generating material flow field problem under the condition of high temperature easily; The seal lip size and dimension is changed, cause sealability to lose efficacy, so that the quality problems of piston rod external leakage occur.
The model utility content
The utility model purpose is to provide a kind of axle of good seal performance with the combination envelope for the deficiency that overcomes existing technology.
For achieving the above object, the technological scheme that the utility model adopts is: a kind of comprises an annular ring with the combination envelope, and seamed edge is provided with circular arc in the place of annular ring; The said seal lip place that is provided with circular arc is provided with the drift angle.
Preferably, the radius of said circular arc is 1mm～3mm.
Preferably, said drift angle is 5 °～10 °.
Because the utilization of technique scheme, the utility model compared with prior art has advantage:
The axle of the utility model is with the combination envelope, because seamed edge is provided with circular arc in the place of annular ring; The said seal lip place that is provided with circular arc is provided with the drift angle; Seal lip place and seamed edge material generation flow field problem when avoiding high temperature mobility status occurs even produce the lip material, owing to there is the material flowing space; Can not reduce sealing effect yet, prevent the quality problems of piston rod external leakage.
Description of drawings
Below in conjunction with accompanying drawing the utility model technological scheme is described further:
Wherein: 1, annular ring; 2, circular arc; 3, seal lip; 4, drift angle.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to specify.
Described a kind of of the utility model shown in accompanying drawing 1 comprises an annular ring 1 with the combination envelope, and seamed edge is provided with circular arc 2 in the place of annular ring 1; Said seal lip 3 places that are provided with circular arc 2 are provided with drift angle 4; The radius of said circular arc 2 is 1mm～3mm; Said drift angle 4 is 5 °～10 °.
Because the utilization of technique scheme, the utility model compared with prior art has advantage:
The axle of the utility model is with the combination envelope, because seamed edge is provided with circular arc in the place of annular ring; The said seal lip place that is provided with circular arc is provided with the drift angle; Seal lip place and seamed edge material generation flow field problem when avoiding high temperature mobility status occurs even produce the lip material, owing to there is the material flowing space; Can not reduce sealing effect yet, prevent the quality problems of piston rod external leakage.
Below only be the concrete exemplary applications of the utility model, the protection domain of the utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technological scheme of formation, or any to move mode dull and stereotyped described in the utility model, all drop within the utility model rights protection scope.
Claims (3)
1. an axle comprises an annular ring with the combination envelope, and it is characterized in that: seamed edge is provided with circular arc in the place of annular ring; The said seal lip place that is provided with circular arc is provided with the drift angle.
2. axle according to claim 1 is with the combination envelope, and it is characterized in that: the radius of said circular arc is 1mm～3mm.
3. axle according to claim 1 is with the combination envelope, and it is characterized in that: said drift angle is 5 °～10 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204605293U CN202402640U (en) | 2011-11-19 | 2011-11-19 | Axial combination seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204605293U CN202402640U (en) | 2011-11-19 | 2011-11-19 | Axial combination seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202402640U true CN202402640U (en) | 2012-08-29 |
Family
ID=46700289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204605293U Expired - Fee Related CN202402640U (en) | 2011-11-19 | 2011-11-19 | Axial combination seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202402640U (en) |
-
2011
- 2011-11-19 CN CN2011204605293U patent/CN202402640U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20121119 |