CN202768859U - Self-lubricating pneumatic sealing ring - Google Patents
Self-lubricating pneumatic sealing ring Download PDFInfo
- Publication number
- CN202768859U CN202768859U CN201220439494.XU CN201220439494U CN202768859U CN 202768859 U CN202768859 U CN 202768859U CN 201220439494 U CN201220439494 U CN 201220439494U CN 202768859 U CN202768859 U CN 202768859U
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- CN
- China
- Prior art keywords
- sealing ring
- ring body
- seal ring
- self
- pneumatic sealing
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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 - Lifetime
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Abstract
The utility model discloses a self-lubricating pneumatic sealing ring which comprises a sealing ring body (1). A cavity (1a) is arranged in a ring wall of the sealing ring body (1). The outer circumference of the sealing ring body (1) is provided with an air injection through hole (1b) communicated with the cavity (1a). One side of the inner circumference of the sealing ring body (1) is provided with a ring-shaped oil storage tank (2). The self-lubricating pneumatic sealing ring is simple in structure, low in production cost, good in sealing effect and long in service life.
Description
Technical field
The utility model relates to a kind of Pneumatic sealing ring, particularly the self-lubricated Pneumatic sealing ring of a kind of energy.
Background technique
Pneumatic sealing ring is important a kind of in the pneumatic auxiliary, mainly is made of skeleton and seal ring, and it roughly is divided into two kinds of motive sealing and static seals, and static seal is used for fixing place and requires lower.And motive sealing is used in rotation, to-and-fro motion position, and when in use, the inside and outside circle of seal ring is subject to the pressure of gas, is formed a sealing surface after expand, is used for sealing and obtains reasonable sealing effect.But owing to be the face sealing, with larger by the surface of contact of Sealing, the gas self-lubricating effect is poor in addition, so friction factor is high, and the friction and wear that moves reciprocatingly for a long time causes reduce greatly the natural life-span of Pneumatic sealing ring, and sealing was lost efficacy easily.
The model utility content
In order to solve the problems of the technologies described above, the utility model provides a kind of selflubricating Pneumatic sealing ring, good sealing effect, can prolong working life of seal ring.
To achieve these goals, the technical solution of the utility model is as follows: a kind of selflubricating Pneumatic sealing ring, comprise seal ring body (1), be provided with cavity (1a) in the circle wall of described seal ring body (1), the outer peripheral surface of described seal ring body (1) is provided with the gas injection through hole (1b) that communicates with this cavity (1a), it is characterized in that: a side of the inner peripheral surface of described seal ring body (1) has annular oil storage tank (2).
In technique scheme, establish annular oil storage tank at the inner peripheral surface of seal ring, load onto lubricant oil during the fitting tight circle, self-assembling formation lubricant film when mechanism's to-and-fro motion, thereby reach lubricated purpose, and seal groove is arranged on the position near the seal ring end face, does not destroy sealing surface, good sealing effect.
In technique scheme, the side that described seal ring body (1) has annular oil storage tank (2) is provided with back-up ring (3).Described back-up ring plays the effect of support guide.
In technique scheme: the inner peripheral surface of described seal ring body (1) is inwardly protruded cambered surface.The inner peripheral surface of seal ring body is motive sealing face, and the cambered surface of being arranged to projection can play better seal action.
Beneficial effect: the utility model is simple in structure, low cost of manufacture, good sealing effect, long service life.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the sectional drawing of Fig. 1.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Claims (3)
1. selflubricating Pneumatic sealing ring, comprise seal ring body (1), be provided with cavity (1a) in the circle wall of described seal ring body (1), the outer peripheral surface of described seal ring body (1) is provided with the gas injection through hole (1b) that communicates with this cavity (1a), it is characterized in that: a side of the inner peripheral surface of described seal ring body (1) has annular oil storage tank (2).
2. described selflubricating Pneumatic sealing ring according to claim 1, it is characterized in that: the side that described seal ring body (1) has annular oil storage tank (2) is provided with back-up ring (3).
3. described selflubricating Pneumatic sealing ring according to claim 1 and 2, it is characterized in that: the inner peripheral surface of described seal ring body (1) is inwardly protruded cambered surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220439494.XU CN202768859U (en) | 2012-08-31 | 2012-08-31 | Self-lubricating pneumatic sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220439494.XU CN202768859U (en) | 2012-08-31 | 2012-08-31 | Self-lubricating pneumatic sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202768859U true CN202768859U (en) | 2013-03-06 |
Family
ID=47775434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220439494.XU Expired - Lifetime CN202768859U (en) | 2012-08-31 | 2012-08-31 | Self-lubricating pneumatic sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202768859U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899750A (en) * | 2014-04-13 | 2014-07-02 | 福建亚南电机有限公司 | Internal compression seal ring of two-gear planet gearbox of pure electric vehicle through axle |
| CN110410116A (en) * | 2019-08-05 | 2019-11-05 | 重庆工程职业技术学院 | Hydraulic prop sealing ring |
-
2012
- 2012-08-31 CN CN201220439494.XU patent/CN202768859U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899750A (en) * | 2014-04-13 | 2014-07-02 | 福建亚南电机有限公司 | Internal compression seal ring of two-gear planet gearbox of pure electric vehicle through axle |
| CN103899750B (en) * | 2014-04-13 | 2017-01-11 | 福建亚南电机有限公司 | Internal compression seal ring of two-gear planet gearbox of pure electric vehicle through axle |
| CN110410116A (en) * | 2019-08-05 | 2019-11-05 | 重庆工程职业技术学院 | Hydraulic prop sealing ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130306 |
|
| CX01 | Expiry of patent term |