CN203214872U - Novel movable sealing device - Google Patents
Novel movable sealing device Download PDFInfo
- Publication number
- CN203214872U CN203214872U CN 201220735997 CN201220735997U CN203214872U CN 203214872 U CN203214872 U CN 203214872U CN 201220735997 CN201220735997 CN 201220735997 CN 201220735997 U CN201220735997 U CN 201220735997U CN 203214872 U CN203214872 U CN 203214872U
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- sealing
- seal ring
- seal
- novel movable
- groove
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Abstract
The utility model belongs to the field of hydraulic sealing, and relates to a novel movable sealing device. The novel movable sealing device comprises a sealing loop and a sealing ring, wherein the section of the sealing ring is in a lemon shape, and a groove for installation of the sealing ring is formed in the sealing loop. Compared with the sealing mode that an O-shaped sealing ring and a sealing loop are arranged, the sealing mode of the novel movable sealing device has the advantages that the rubber ring contact area is large, self-lubrication is achieved, the service life is long, and static friction is small. The sealing reliability of a movable seal of an actuator can be improved effectively, the service life of the movable seal of the actuator can be prolonged effectively, the reduction of the static friction facilitates improvement of properties of the actuator, and the novel movable sealing device can be widely applied to the various fields involving the movable seal, such as aviation, spaceflight and industries.
Description
Technical field
The invention belongs to the hydraulic seal field, relate to a kind of novel movable seal arrangement.
Background technique
The seal arrangement that current servo actuator movable sealing place uses generally all adopts " O " shape seal ring to add seal ring, the area of contact of " O " shape seal ring and seal ring is less in this kind seal style, sealing effect is general, and stiction is big and the life-span is shorter, and reliability is not high.
Summary of the invention
Purpose of the present invention: a kind of long working life, little, the reliable novel movable seal style of sealability of stiction are provided.
Technological scheme of the present invention: a kind of novel movable seal arrangement, comprise seal ring and seal ring, described seal ring sectional shape is lemon shape, seal ring is provided with the groove that seal ring is installed.
Further, above-mentioned groove is arranged on the cylindrical of seal ring.
Further, above-mentioned groove is arranged in the endoporus of seal ring.
Further, above-mentioned seal ring both sides end face is uniform, and oil groove is crossed at some places.
Top, described seal ring cross section is three sections tangent being formed by connecting of circular arc that radius is identical.
Top, described seal ring cross section is formed by connecting by three sections different circular arcs of radius.
Beneficial effect of the present invention: the seal style that novel seal pattern of the present invention and " O " shape seal ring add seal ring compares that to have the cushion rubber area of contact big, can realize selflubricating, the characteristics that the life-span is long, static friction is little, can effectively improve sealing reliability and the operating life of actuator movable sealing, the performance that reduces to be conducive to improve actuator of stiction can be widely used in the various fields that relate to movable sealing such as Aeronautics and Astronautics, industry.
Description of drawings
Fig. 1 is the sectional view of inner seal ring;
Fig. 2 is the sectional view of inner seal ring;
Fig. 3 is the plan view of outer seal ring;
Fig. 4 is the left view of outer seal ring;
Fig. 5 is the sectional view of exterior seal ring;
Fig. 6, the 7th, the scheme of installation of seal ring and seal ring;
Fig. 8,9, the stressed schematic representation of 10 seal arrangements.
Embodiment
Specify this seal arrangement below in conjunction with accompanying drawing for better illustrating.
A kind of novel movable seal arrangement is made up of seal ring and seal ring, and described seal ring sectional shape is lemon shape, and seal ring is provided with the groove that seal ring is installed.
According to different needs, groove can be arranged on the cylindrical of seal ring, and this kind seal style is referred to as inner seal ring, and as shown in Figure 1, 2, it installs pattern as shown in Figure 6; Also can be arranged in the endoporus of seal ring, this kind seal style is referred to as outer seal ring, and shown in Fig. 3,4,5, it installs pattern as shown in Figure 7.
For better implement the utility model, above-mentioned outer seal ring both sides end face is uniform, and oil groove is crossed at some places.Crossing oil groove 1 introduces fluid and avoids seal arrangement owing to being subjected to force unbalance to produce extrusion-deformation, as shown in Figure 9 when playing lubricated effect in the seal groove.It is can enter whole seal groove by crossing oil groove 1 after the hydraulic oil of P enters seal groove that the setting of crossing oil groove 1 makes pressure, and the situation of seal ring extrusion among Fig. 8 can not occur.
Top, seal ring cross section above-mentioned and that inner seal ring matches is three sections tangent being formed by connecting of circular arc R that radius is identical, and it closely contacts with inner seal ring and makes lifting surface area big and even, as shown in figure 10.
The top, seal ring cross section that above-mentioned and outer seal ring match is formed by connecting by three sections different circular arc R 1, R2, R3 of radius, and its bigger sectional area R3 and outer seal ring closely contact and make lifting surface area big and evenly, as shown in figure 10.It is can enter whole seal groove by crossing oil groove 1 after the hydraulic oil of P enters seal groove that the setting of crossing oil groove 1 makes pressure, and the situation of seal ring extrusion among Fig. 8 can not occur.
The seal style that novel seal pattern of the present invention and " O " shape seal ring add seal ring compares that to have the cushion rubber area of contact big, can realize selflubricating, the characteristics that the life-span is long, static friction is little, can effectively improve sealing reliability and the operating life of actuator movable sealing, the performance that reduces to be conducive to improve actuator of stiction.
Claims (6)
1. novel movable seal arrangement, it is characterized in that: comprise seal ring and seal ring, described seal ring sectional shape is lemon shape, seal ring is provided with the groove that seal ring is installed.
2. novel movable seal arrangement according to claim 1, it is characterized in that: groove is arranged on the cylindrical of seal ring.
3. novel movable seal arrangement according to claim 1, it is characterized in that: groove is arranged in the endoporus of seal ring.
4. novel movable seal arrangement according to claim 3 is characterized in that: seal ring both sides end face is uniform, and oil groove is crossed at some places.
5. novel movable seal arrangement according to claim 2, it is characterized in that: top, seal ring cross section is three sections tangent being formed by connecting of circular arc that radius is identical.
6. novel movable seal arrangement according to claim 3, it is characterized in that: top, seal ring cross section is formed by connecting by three sections different circular arcs of radius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220735997 CN203214872U (en) | 2012-12-27 | 2012-12-27 | Novel movable sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220735997 CN203214872U (en) | 2012-12-27 | 2012-12-27 | Novel movable sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203214872U true CN203214872U (en) | 2013-09-25 |
Family
ID=49204411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220735997 Expired - Lifetime CN203214872U (en) | 2012-12-27 | 2012-12-27 | Novel movable sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203214872U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221745A (en) * | 2015-09-24 | 2016-01-06 | 上海材料研究所 | A kind of rotation combination seal ring |
| CN110561270A (en) * | 2019-08-27 | 2019-12-13 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Auxiliary tool for preventing inner hole honing deformation of large-diameter thin-wall part |
-
2012
- 2012-12-27 CN CN 201220735997 patent/CN203214872U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221745A (en) * | 2015-09-24 | 2016-01-06 | 上海材料研究所 | A kind of rotation combination seal ring |
| CN105221745B (en) * | 2015-09-24 | 2018-06-29 | 上海材料研究所 | A kind of rotation combination sealing ring |
| CN110561270A (en) * | 2019-08-27 | 2019-12-13 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Auxiliary tool for preventing inner hole honing deformation of large-diameter thin-wall part |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130925 |