CN107061730A - A kind of special-shaped sealing structure - Google Patents
A kind of special-shaped sealing structure Download PDFInfo
- Publication number
- CN107061730A CN107061730A CN201611260854.9A CN201611260854A CN107061730A CN 107061730 A CN107061730 A CN 107061730A CN 201611260854 A CN201611260854 A CN 201611260854A CN 107061730 A CN107061730 A CN 107061730A
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- CN
- China
- Prior art keywords
- seal ring
- special
- shaped
- ring
- sealing area
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/12—Details
- F16J9/20—Rings with special cross-section; Oil-scraping rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/28—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction of non-metals
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Abstract
The invention discloses a kind of special-shaped sealing structure, including special-shaped seal ring, pressure ring, primary sealing area and secondary sealing area, seal groove is provided with primary sealing area, special-shaped seal ring is formed by connecting by outer side seal ring and inner seal ring, outer side seal ring and inner seal ring cross-sectional shape are dome-shaped, special-shaped seal ring is placed in seal groove center, outer side seal ring and inner seal ring junction are provided with the pressure ring that size is not more than junction width, connecting hole is set on pressure ring, connector passes through connecting hole, special-shaped seal ring is fixed in the seal groove of primary sealing area by pressure ring, pressure ring is not higher than at the top of connector.The present invention is by two sealed structures, especially in heavy caliber trigger mechanism, solves high pressure resistant, anticreep the sealing problem between the coaxial configuration part that many places need frequently, dock at a high speed and opened.The invention can be used for the occasion that other are sealed with anticreep requirement to end face.
Description
Technical field
The present invention relates to a kind of special-shaped sealing structure, applied in heavy caliber piston trigger mechanism.
Background technology
FREE-PISTON SHOCK TUNNEL is a kind of shock tunnel that high-pressure driving gas is obtained with taskwork plug compressed gas.Such
Wind-tunnel results in Gao Han, High Speed Flow Field, flowing when being reentered at a high speed available for simulation recoverable capsule etc..Large Piston trigger mechanism
It is the core component of aforementioned type wind-tunnel, the piston for quick, the stable various structures of transmitting and quality.Such a piston transmitting
In mechanism, for convenience of the loading of piston, and emitting performance is quick, stably, and the part for having many places coaxial configuration needs frequently
Docking and opening, therefore one of key structure that the sealing structure that can be born high pressure and not fall off, which is it, normally to be run.
Because many places coaxial configuration in trigger mechanism needs to ensure that strict axiality is required in docking, therefore two structures
Between need to set fit precision is higher, length is longer guiding fixing structure.Because physical dimension is big, the external force applied during docking
Also very big, if setting sealing structure on the side face for coordinating seam, potted component is easy to abrasion.Maintenance cost is higher and close
The reliability of envelope is not high.
The content of the invention
The technical problems to be solved by the invention：In view of the shortcomings of the prior art, a kind of special-shaped sealing structure is proposed, is passed through
Two sealed structures, especially in heavy caliber trigger mechanism, solve the coaxial knot that many places need frequently, dock at a high speed and opened
High pressure resistant, anticreep sealing problem between structure part.
The technical solution of the present invention：
A kind of special-shaped sealing structure, including special-shaped seal ring, pressure ring, primary sealing area and secondary sealing area, the first sealing
Seal groove is provided with face, special-shaped seal ring is formed by connecting by outer side seal ring and inner seal ring, and outer side seal ring and inner side are close
Seal ring cross-sectional shape is dome-shaped, and special-shaped seal ring is placed in seal groove center, and outer side seal ring and inner seal ring connect
The place of connecing is provided with the pressure ring that size is not more than junction width, and connecting hole is set on pressure ring, and connector passes through connecting hole, passed through
Special-shaped seal ring is fixed in the seal groove of primary sealing area by pressure ring, and pressure ring is not higher than at the top of connector.
Outer side seal ring and inner seal ring are highly consistent.
The groove depth of seal groove is the 70%-80% of special-shaped seal ring height.
When primary sealing area and secondary sealing area sealing, special-shaped seal ring is all accommodated in seal groove, and pressure ring barrier is different
Shape sealing ring high pressure is extruded, and primary sealing area and secondary sealing area seal clearance are no more than 1mm.
When primary sealing area and secondary sealing area sealing, gap is less than between special-shaped seal ring outer peripheral face and seal groove internal face
1mm。
The dome-shaped top in outer side seal ring and inner seal ring section is semi-circular structure, and bottom is rectangular configuration.
Special-shaped seal ring is elastomeric material, and pressure ring is hard material.
Beneficial effects of the present invention：
(1) present invention by two sealed structures, especially in heavy caliber trigger mechanism, solve many places need frequently,
High pressure resistant, anticreep sealing problem between the coaxial configuration part for docking and opening at a high speed.It is right that the invention can be used for other
End face seal has the occasion of anticreep requirement；
(2) during primary sealing area and secondary sealing area sealing of the present invention, special-shaped seal ring is all accommodated in seal groove, pressure
Ring barrier special-shaped seal ring high pressure is extruded, and effectively ensure that sealed effect.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is schematic enlarged-scale view of the present invention；
Fig. 3 is top view of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
A kind of special-shaped sealing structure, as shown in Figure 1 and Figure 2, including special-shaped seal ring 1, pressure ring 2, primary sealing area 5 and
It is provided with seal groove 4 on two sealing surfaces 6, primary sealing area 5, special-shaped seal ring 1 is by outer side seal ring and the connection of inner seal ring
Into, as shown in figure 3, outer side seal ring and inner seal ring cross-sectional shape are dome-shaped, dome-shaped top is semi-circular structure, under
Portion is rectangular configuration, and outer side seal ring and inner seal ring are highly consistent,
Special-shaped seal ring 1 is placed in the center of seal groove 4, and the groove depth of seal groove 4 is the 70%- of the height of special-shaped seal ring 1
80%, outer side seal ring and inner seal ring junction are provided with the pressure ring 2 that size is not more than junction width, on pressure ring 2
Connecting hole is set, and connector passes through connecting hole, special-shaped seal ring 1 is fixed on to the seal groove 4 of primary sealing area 5 by pressure ring 2
In, pressure ring 2 is not higher than at the top of connector.
When primary sealing area 5 and the sealing of secondary sealing area 5, special-shaped seal ring 1 is all accommodated in seal groove 4, and pressure ring 2 hinders
It is extruded every the high pressure of special-shaped seal ring 1, primary sealing area 5 and the seal clearance of secondary sealing area 6 are no more than 1mm, special-shaped seal ring 1
Gap is less than 1mm between outer peripheral face and the internal face of seal groove 4.
Special-shaped seal ring 1 is elastomeric material, and pressure ring 2 is hard material.
The present invention operation principle be：Rectangular seal groove 4 is arranged on the secondary side end face of seal face, works as both ends of the surface
During compression, special-shaped seal ring 1 is pressed into rectangular seal groove 4, and is essentially filled with seal groove.Both ends of the surface gap is less than 0.5mm.When
When bearing high pressure on the inside of sealing structure, inner seal ring can be adjacent to first of sealing of the medial surface of pressure ring 2 formation, outer side seal ring meeting
It is close to the formation second sealing of the lateral surface of rectangular seal groove 4.When both ends of the surface are separated rapidly, connected piece is fixed on rectangular seal
Pressure ring 2 in groove 4, can be moved with special-shaped seal ring 1 with a side end face, and shape and position keep constant.When both ends of the surface again
During secondary compression, sealing structure can repeat said process, it is ensured that repeatedly sealedly reliable.
The present invention is by two sealed structures, especially in heavy caliber trigger mechanism, and solving many places needs frequently, at a high speed
High pressure resistant, anticreep sealing problem between docking and the coaxial configuration part opened.The invention can be used for other to end face
It is sealed with the occasion of anticreep requirement.
The undisclosed content of the present invention is known to the skilled person general knowledge.
Claims (7)
1. a kind of special-shaped sealing structure, it is characterised in that including special-shaped seal ring (1), pressure ring (2), primary sealing area (5) and
Seal groove (4) is provided with two sealing surfaces (6), primary sealing area (5), special-shaped seal ring (1) is by outer side seal ring and inner seal
Ring is formed by connecting, and outer side seal ring and inner seal ring cross-sectional shape are dome-shaped, and special-shaped seal ring (1) is placed in seal groove
(4) center, outer side seal ring and inner seal ring junction are provided with the pressure ring (2) that size is not more than junction width,
Connecting hole is set on pressure ring (2), and connector passes through connecting hole, it is close that special-shaped seal ring (1) is fixed on into first by pressure ring (2)
In the seal groove (4) of front cover (5), pressure ring (2) is not higher than at the top of connector.
2. a kind of special-shaped sealing structure as claimed in claim 1, it is characterised in that outer side seal ring and inner seal ring height
Unanimously.
3. a kind of special-shaped sealing structure as claimed in claim 1, it is characterised in that the groove depth of seal groove (4) is profiled seal
Enclose the 70%-80% of (1) height.
4. a kind of special-shaped sealing structure as claimed in claim 3, it is characterised in that primary sealing area (5) and secondary sealing area
(5) when sealing, special-shaped seal ring (1) is all accommodated in seal groove (4), and pressure ring (2) barrier special-shaped seal ring (1) high pressure is squeezed
Go out, primary sealing area (5) and secondary sealing area (6) seal clearance are no more than 1mm.
5. a kind of special-shaped sealing structure as claimed in claim 4, it is characterised in that primary sealing area (5) and secondary sealing area
(6) when sealing, gap is less than 1mm between special-shaped seal ring (1) outer peripheral face and seal groove (4) internal face.
6. a kind of special-shaped sealing structure as claimed in claim 1, it is characterised in that outer side seal ring and inner seal ring section
Dome-shaped top be semi-circular structure, bottom is rectangular configuration.
7. a kind of special-shaped sealing structure as claimed in claim 1, it is characterised in that special-shaped seal ring (1) is elastomeric material, pressure
Ring (2) is hard material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611260854.9A CN107061730B (en) | 2016-12-30 | 2016-12-30 | A kind of special-shaped sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611260854.9A CN107061730B (en) | 2016-12-30 | 2016-12-30 | A kind of special-shaped sealing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107061730A true CN107061730A (en) | 2017-08-18 |
| CN107061730B CN107061730B (en) | 2018-12-21 |
Family
ID=59624066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611260854.9A Active CN107061730B (en) | 2016-12-30 | 2016-12-30 | A kind of special-shaped sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107061730B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677867A (en) * | 2020-06-17 | 2020-09-18 | 清华大学 | Fastenable elastomer seal structure |
-
2016
- 2016-12-30 CN CN201611260854.9A patent/CN107061730B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677867A (en) * | 2020-06-17 | 2020-09-18 | 清华大学 | Fastenable elastomer seal structure |
| CN111677867B (en) * | 2020-06-17 | 2021-11-16 | 清华大学 | Fastenable elastomer seal structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107061730B (en) | 2018-12-21 |
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