CN203656190U - Shaft dynamic sealing structure with double O-shaped sealing rings - Google Patents
Shaft dynamic sealing structure with double O-shaped sealing rings Download PDFInfo
- Publication number
- CN203656190U CN203656190U CN201320794187.8U CN201320794187U CN203656190U CN 203656190 U CN203656190 U CN 203656190U CN 201320794187 U CN201320794187 U CN 201320794187U CN 203656190 U CN203656190 U CN 203656190U
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- shaft
- sealing
- cavity
- shaped
- sealing rings
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Abstract
The utility model discloses a shaft dynamic sealing structure with double O-shaped sealing rings, and belongs to the technical field of sealing. The shaft dynamic sealing structure with the double O-shaped sealing rings comprises the O-shaped shaft sealing rings, a movable shaft and a cavity, wherein the movable shaft is installed in a shaft hole in the cavity, two circumferential grooves are formed in the periphery of the wall of the shaft hole, the O-shaped shaft sealing rings are installed in the grooves in the shaft hole in the cavity, the movable shaft and the shaft hole are sealed through the O-shaped shaft sealing rings, and the number of the O-shaped shaft sealing rings installed in the shaft hole of the cavity is two. The shaft dynamic sealing structure with the double O-shaped sealing rings achieves the effects of good bidirectional sealing and dual-sealing in any same direction by adopting the two O-shaped shaft sealing rings for combined sealing.
Description
Technical field
The utility model belongs to technical field of sealing technology, relates to a kind of axle motive sealing, specifically relates to a kind of two O RunddichtringO axle movable sealing structure.
Background technique
Sealing is to prevent that fluid or solid particle are from leaking and prevent component or the measure that introduced contaminants is invaded machinery equipment inside as the foreign matter such as dust and moisture between adjacent junction plane.In the prior art, the axial seal in the structure moving axis holes such as electrical machinery cover generally adopts KYD profile shaft seal ring to seal, and security level reaches IP65.But this structure is by the Y type mouth sealing of KYD RunddichtringO, higher leveled protection is not again reached to requirement, and only depend on the sealing of Y type mouth, sealing direction is single, can not seal from the high viscosity lubricating oil in chamber, lubricant oil in electric machine structure can spill outside Sealing along with the flexible of motor shaft under normal circumstances, affects sealability and appearance effect.
Model utility content
In order to address the above problem, the utility model provides a kind of pair of O RunddichtringO axle movable sealing structure, thereby reaches good two way sealed and any unidirectional double seal effect.
The utility model is achieved by following technical solution.
A kind of two O RunddichtringO axle movable sealing structure, comprise O seal ring, moving axis and cavity for profile shaft, described moving axis is contained in the axis hole on cavity, axis hole wall is processed with two circumferential grooves around, described O profile shaft is contained in the groove in the axis hole on cavity with seal ring, between moving axis and axis hole, seals with seal ring by O profile shaft.
The number that is contained in the O profile shaft seal ring in described cavity axis hole is 2.
The beneficial effects of the utility model are:
The two O RunddichtringO axle movable sealing structures of one described in the utility model, by adopting two O profile shaft seal rings to seal sealed mouth, reach higher sealing grade, and can realize two way sealed and any unidirectional double seal, favorable sealing property, is applicable to that high greasy dirt, dust are large, in the sealing of the general axis of high humility or high low temperature and the larger dynamic and static axial seal structure of temperature variation.
Brief description of the drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the axle movable sealing structure schematic diagram of prior art.
In figure: 1-O profile shaft seal ring, 2-moving axis, 3-inner chamber, 4-cavity, 5-KYD profile shaft seal ring.
Embodiment
Further describe the technical solution of the utility model below in conjunction with accompanying drawing, but described in claimed scope is not limited to.
As shown in Figure 1, the two O RunddichtringO axle movable sealing structures of one described in the utility model, comprise seal ring 1 for O profile shaft, moving axis 2 and cavity 4, described moving axis 2 is contained in the axis hole on cavity 4, axis hole wall is processed with two circumferential grooves around, described O profile shaft is contained in the groove in the axis hole on cavity 4 with seal ring 1, between moving axis 2 and axis hole, seals with seal ring 1 by O profile shaft.
The number that is contained in the O profile shaft seal ring 1 in described cavity 4 axis holes is 2, in the time that moving axis 2 is protruding, O profile shaft near inner chamber 3 can seal up the lubricant oil in chamber with seal ring 1, can form the second resealing near the O profile shaft outside chamber with seal ring 1, ensure that lubricant oil can not leave inner chamber 3 by servo axis 2; When moving axis 2 is when shrinking in chamber, can block the outside foreign matter such as water, dust near the O profile shaft outside chamber with seal ring 1, can form the second resealing near the O profile shaft of inner chamber 3 with seal ring 1, the foreign matters such as guarantee water, dust granule can not enter inner chamber 3 by servo axis 2.
Because O profile shaft is less, simple in structure with seal ring 1 thickness, even if adopt two seal rings 1 for O profile shaft, the thickness of cavity 4 does not need to increase, and even can be slightly thinner than the thickness while adopting KYD profile shaft seal ring 5.Seal ring 1 favorable sealing property for O profile shaft, adds the compression of cavity 4 structures and fixes, and sealing protection performance is higher.
The seal ring 1 for O profile shaft of selecting suitable stiffness, can improve sealability, reaches the security level that IP66 is even higher.In the time that O profile shaft seal ring 1 material of selecting is high temperature resistant or low temperature material, this structure still can keep good sealability in high and low temperature environment, in the dynamic and static axial seal structure that therefore the general axis sealing of the technical program, high humility large applicable to high greasy dirt, dust or high low temperature and temperature variation are larger.
Claims (2)
1. a two O RunddichtringO axle movable sealing structure, comprise O seal ring (1), moving axis (2) and cavity (4) for profile shaft, described moving axis (2) is contained in the axis hole on cavity (4), it is characterized in that: axis hole wall is processed with two circumferential grooves around, described O for profile shaft seal ring (1) be contained in the groove in the axis hole on cavity (4), between moving axis (2) and axis hole by O profile shaft for seal ring (1) seal.
2. the two O RunddichtringO axle movable sealing structures of one according to claim 1, is characterized in that: the number that is contained in the O seal ring (1) for profile shaft in described cavity (4) axis hole is 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320794187.8U CN203656190U (en) | 2013-12-04 | 2013-12-04 | Shaft dynamic sealing structure with double O-shaped sealing rings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320794187.8U CN203656190U (en) | 2013-12-04 | 2013-12-04 | Shaft dynamic sealing structure with double O-shaped sealing rings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203656190U true CN203656190U (en) | 2014-06-18 |
Family
ID=50922578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320794187.8U Expired - Fee Related CN203656190U (en) | 2013-12-04 | 2013-12-04 | Shaft dynamic sealing structure with double O-shaped sealing rings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203656190U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276183A (en) * | 2014-07-16 | 2016-01-27 | 镇江大力液压马达股份有限公司 | Cycloid hydraulic motor with O-shaped sealing rings for positioning and sealing |
-
2013
- 2013-12-04 CN CN201320794187.8U patent/CN203656190U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276183A (en) * | 2014-07-16 | 2016-01-27 | 镇江大力液压马达股份有限公司 | Cycloid hydraulic motor with O-shaped sealing rings for positioning and sealing |
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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: 20140618 Termination date: 20141204 |
|
| EXPY | Termination of patent right or utility model |