CN107061730B - A kind of special-shaped sealing structure - Google Patents
A kind of special-shaped sealing structure Download PDFInfo
- Publication number
- CN107061730B CN107061730B CN201611260854.9A CN201611260854A CN107061730B CN 107061730 B CN107061730 B CN 107061730B CN 201611260854 A CN201611260854 A CN 201611260854A CN 107061730 B CN107061730 B CN 107061730B
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- China
- Prior art keywords
- seal ring
- special
- shaped
- ring
- seal
- 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
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- 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
Abstract
The invention discloses a kind of special-shaped sealing structures, including special-shaped seal ring, pressure ring, primary sealing area and secondary sealing area, seal groove is provided on 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 component that many places need frequently, high speed is docked and open.The invention can be used for other occasions that anticreep requirement is sealed with to end face.
Description
Technical field
The present invention relates to a kind of special-shaped sealing structures, are applied in heavy caliber piston trigger mechanism.
Background technique
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 can obtain Gao Han, High Speed Flow Field, can be used for simulating the flowing etc. when recoverable capsule high speed reenters.Large Piston trigger mechanism
It is the core component of aforementioned type wind-tunnel, the piston for quick, stable transmitting various structures and quality.Such piston transmitting
In mechanism, for convenience of the loading of piston and quick, the stabilization of emitting performance, there is the component of many places coaxial configuration to need frequent
It docking and opens, therefore high pressure can be born and the sealing structure that does not fall off is one of the key structure that it is operated normally.
Since many places coaxial configuration in trigger mechanism needs to guarantee that stringent concentricity requires in docking, therefore two structures
Between need to be arranged cooperation precision be higher, the longer guiding fixing structure of length.Since structure size is big, external force that when docking applies
Also very big, if sealing structure is arranged on the circumferential surface of cooperation seam allowance, sealing element is easy to wear.Maintenance cost is higher and close
The reliability of envelope is not high.
Summary of the invention
The technical problems to be solved by the invention: it in view of the deficiencies of the prior art, proposes a kind of special-shaped sealing structure, passes through
Two sealed structures solve the coaxial knot that many places need frequently, high speed is docked and opened especially in heavy caliber trigger mechanism
High pressure resistant, anticreep sealing problem between structure component.
Technical solution of the 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 on face, special-shaped seal ring is formed by connecting by outer side seal ring and inner seal ring, and outer side seal ring and inside 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 arranged on pressure ring, and connector passes through connecting hole, passes 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 is consistent with inner seal ring height.
The groove depth of seal groove is the 70%-80% of special-shaped seal ring height.
When primary sealing area and secondary sealing area seal, 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 seal, gap is less than between special-shaped seal ring outer peripheral surface and seal groove inner wall
1mm。
The dome-shaped top in outer side seal ring and inner seal ring section is semi-circular structure, and lower part is rectangular configuration.
Special-shaped seal ring is rubber material, and pressure ring is hard material.
Beneficial effects of the present invention:
(1) present invention is 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 component that high speed is docked and opened.It is right that the invention can be used for other
End face seal has the occasion of anticreep requirement；
(2) when primary sealing area and secondary sealing area of the present invention seal, special-shaped seal ring is all accommodated in seal groove, pressure
Ring barrier special-shaped seal ring high pressure is extruded, and effectively ensures the effect of sealing.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is structure of the invention enlarged drawing；
Fig. 3 is top view of the present invention.
Specific embodiment
Below in conjunction with attached 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
Two sealing surfaces 6, are provided with seal groove 4 on primary sealing area 5, special-shaped seal ring 1 connected by outer side seal ring with inner seal ring and
At, 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 is consistent with inner seal ring height,
Special-shaped seal ring 1 is placed in 4 center of seal groove, and the groove depth of seal groove 4 is the 70%- of 1 height of special-shaped seal ring
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 secondary sealing area 5 seal, special-shaped seal ring 1 is all accommodated in seal groove 4, and pressure ring 2 hinders
It is extruded every 1 high pressure of special-shaped seal ring, primary sealing area 5 and 6 seal clearance of secondary sealing area are no more than 1mm, special-shaped seal ring 1
Gap is less than 1mm between 4 inner wall of outer peripheral surface and seal groove.
Special-shaped seal ring 1 is rubber material, and pressure ring 2 is hard material.
The working principle of the invention is: rectangular seal slot 4 being arranged on a side end face of seal face pair, works as both ends of the surface
When compression, special-shaped seal ring 1 is pressed into rectangular seal slot 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 2 medial surface of pressure ring and form first of sealing, outer side seal ring meeting
It is close to 4 lateral surface of rectangular seal slot and forms second sealing.When both ends of the surface separate rapidly, connected piece is fixed on rectangular seal
Pressure ring 2 in slot 4, can be mobile with a side end face with special-shaped seal ring 1, and shape and position remain unchanged.When both ends of the surface again
When secondary compression, sealing structure can be repeated the above process, and guarantee repeatedly seals reliable.
The present invention is by two sealed structures, especially in heavy caliber trigger mechanism, solves many places and needs frequently, at a high speed
High pressure resistant, anticreep sealing problem between docking and the coaxial configuration component opened.The invention can be used for other to end face
It is sealed with the occasion of anticreep requirement.
The present invention is not disclosed content and is known to the skilled person common sense.
Claims (6)
1. a kind of special-shaped sealing structure, which is characterized in that including special-shaped seal ring (1), pressure ring (2), primary sealing area (5) and
Two sealing surfaces (6) are provided with seal groove (4) on primary sealing area (5), and 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, and it is close that special-shaped seal ring (1) is fixed on first by pressure ring (2)
In the seal groove (4) of cover (5), pressure ring (2) are not higher than at the top of connector；Primary sealing area (5) and secondary sealing area (6) sealing
When, special-shaped seal ring (1) all accommodates in seal groove (4), and pressure ring (2) barrier special-shaped seal ring (1) high pressure is extruded, and first
Sealing surface (5) and secondary sealing area (6) seal clearance are no more than 1mm.
2. a kind of special-shaped sealing structure as described in claim 1, which is characterized in that outer side seal ring and inner seal ring height
Unanimously.
3. a kind of special-shaped sealing structure as described in claim 1, which is characterized 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 described in claim 1, which is characterized 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 surface and seal groove (4) inner wall.
5. a kind of special-shaped sealing structure as described in claim 1, which is characterized in that outer side seal ring and inner seal ring section
Dome-shaped top be semi-circular structure, lower part is rectangular configuration.
6. a kind of special-shaped sealing structure as described in claim 1, which is characterized in that special-shaped seal ring (1) is rubber 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 CN107061730A (en) | 2017-08-18 |
| CN107061730B true CN107061730B (en) | 2018-12-21 |
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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) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677867B (en) * | 2020-06-17 | 2021-11-16 | 清华大学 | Fastenable elastomer seal structure |
-
2016
- 2016-12-30 CN CN201611260854.9A patent/CN107061730B/en active Active
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| Publication number | Publication date |
|---|---|
| CN107061730A (en) | 2017-08-18 |
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