CN110578799A - High-vacuum square flange metal sealing structure - Google Patents
High-vacuum square flange metal sealing structure Download PDFInfo
- Publication number
- CN110578799A CN110578799A CN201910931705.8A CN201910931705A CN110578799A CN 110578799 A CN110578799 A CN 110578799A CN 201910931705 A CN201910931705 A CN 201910931705A CN 110578799 A CN110578799 A CN 110578799A
- Authority
- CN
- China
- Prior art keywords
- flange
- positioning
- positioning pin
- bolt
- metal sealing
- 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.)
- Pending
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 50
- 239000002184 metal Substances 0.000 title claims abstract description 50
- 238000007789 sealing Methods 0.000 title claims abstract description 50
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 9
- 230000000712 assembly Effects 0.000 claims abstract description 4
- 238000000429 assembly Methods 0.000 claims abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 239000004332 silver Substances 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B1/00—Devices for securing together, or preventing relative movement between, constructional elements or machine parts
- F16B1/02—Means for securing elements of mechanisms after operation
-
- 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
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
- F16J15/0806—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing characterised by material or surface treatment
-
- 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
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
- F16J15/0881—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing the sealing effect being obtained by plastic deformation of the packing
Abstract
The invention discloses a high-vacuum square flange metal sealing structure which comprises a first flange, a second flange, a positioning assembly, a metal sealing ring and a connecting piece, wherein the first flange is fixedly connected with the second flange; four corners of the sealing side of the first flange are respectively provided with a mounting hole, and threaded holes are formed at the bottoms of the mounting holes; the positioning assembly comprises a bolt, a spring and a positioning pin; the positioning pin is arranged in a threaded hole at the bottom of the first flange mounting hole through a bolt; a spring is arranged between the positioning pin and the wall of the first flange mounting hole; the metal sealing ring is bent to be square and sleeved on positioning pins in positioning assemblies arranged at four corners of the first flange; the first flange and the second flange are fastened through a connecting piece. The aluminum metal sealing ring is adopted, so that the baking and heating can be carried out to about 350 ℃, and the high vacuum requirement is met; the flanges are flat flanges, and positioning structures such as bosses are omitted, so that the flange is convenient to process; the positioning assembly has a telescopic function, can provide a positioning function during installation, retracts during sealing, and does not affect vacuum sealing.
Description
Technical Field
The invention relates to the field of vacuum metal sealing, in particular to a high-vacuum square flange metal sealing structure.
background
the existing vacuum seal generally comprises a rubber seal and a metal seal, and the metal seal has a limited service life, is aged after a certain service life and needs to be replaced. The metal seal is usually a circular flange seal, and conventionally has a sealing structure form such as a metal gasket seal and a metal wire seal. The utility model discloses a patent No. 201720981219.3, invention name is a high vacuum metal seal structure discloses a vacuum seal structure, but all has the location platform on its flange, and is not convenient to process, can not satisfy the sealed of square flange.
Disclosure of Invention
The invention provides a high-vacuum square flange metal sealing structure for solving the defects in the prior art.
the invention is realized according to the following technical scheme.
A high-vacuum square flange metal sealing structure comprises a first flange, a second flange, a positioning assembly, a metal sealing ring and a connecting piece;
Four corners of the sealing side of the first flange are respectively provided with a mounting hole, and threaded holes are formed at the bottoms of the mounting holes;
The positioning assembly comprises a bolt, a spring and a positioning pin; the positioning pin is arranged in a threaded hole at the bottom of the first flange mounting hole through a bolt; a spring is arranged between the positioning pin and the wall of the first flange mounting hole;
The metal sealing ring is bent to be square and sleeved on positioning pins in positioning assemblies arranged at four corners of the first flange;
The first flange and the second flange are fastened through a connecting piece.
Further, the first flange and the second flange are both flat flanges.
Furthermore, the locating pin is an internal hollow structure, the bolt is located in the locating pin, the inner diameter of one end of the locating pin forms a reducing, and the nut of the bolt is clamped at the inner diameter reducing position of the locating pin.
Furthermore, the positioning pin and the outer diameter at the same end with the reduced inner diameter form a reduced diameter, and the spring is sleeved on the reduced outer diameter part of the positioning pin.
furthermore, the positioning pin is in clearance fit with the bolt.
further, the positioning pin is in clearance fit with the first flange mounting hole.
furthermore, the metal sealing ring is made of soft metal materials such as silver and aluminum, and is required to be annealed after welding.
Preferably, the metal sealing ring is an aluminum metal sealing ring.
Further, the diameter of the section of the metal sealing ring is about 1mm ~ 4 mm.
furthermore, the connecting piece is a bolt, and the nut is a self-tightening nut.
The invention has the advantages and beneficial effects that:
The invention effectively solves the problem of metal sealing of the high-vacuum square flange. The aluminum metal sealing ring is adopted, the baking and heating can be carried out to about 350 ℃, the high vacuum requirement is met, and the materials such as aluminum, silver and the like are softer and can be conveniently bent into a square sealing ring; the first flange and the second flange are flat flanges and have no positioning structures such as bosses, so that the square flange is convenient to process; in addition, the positioning assembly has a telescopic function, can provide a positioning function during installation, retracts during sealing, and does not affect vacuum sealing. The invention has simple structure and good sealing effect, fully meets the requirements of the industry and has wide application prospect.
Drawings
FIG. 1 is a schematic view of a metal seal structure of the seal ring of the present invention after compression;
Fig. 2 is a schematic (partial) view of a metal seal structure of the seal ring of the present invention prior to compression.
wherein, 1, a first flange; a second flange;
3. a positioning assembly; 3-1, bolts;
3-2. a spring; 3-3, positioning pins;
4. A metal seal ring; and 5, connecting pieces.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
As shown in fig. 1-2, a high vacuum square flange metal sealing structure comprises a first flange 1, a second flange 2, a positioning component 3, a metal sealing ring 4 and a connecting piece 5;
Four corners of the sealing side of the first flange 1 are respectively provided with a mounting hole, and threaded holes are formed at the bottom of the mounting holes and used for mounting the positioning assembly 3;
The positioning component 3 comprises a bolt 3-1, a spring 3-2 and a positioning pin 3-3; the positioning pin 3-3 is arranged in a threaded hole at the bottom of the first flange mounting hole through a bolt 3-1; a spring 3-2 is arranged between the positioning pin 3-3 and the wall of the first flange mounting hole;
The metal sealing ring 4 is bent to be square when working, and is sleeved on positioning pins 3-3 in the positioning assemblies 3 arranged at four corners of the first flange 1 to realize positioning;
The first flange 1 and the second flange 2 are fastened by a connecting piece 5.
The first flange 1 and the second flange 2 are both flat flanges and have no positioning structures such as bosses, and the square flange is convenient to process.
The locating pin 3-3 is of an internal hollow structure, the bolt 3-1 is located in the locating pin 3-3, the inner diameter of one end of the locating pin 3-3 is reduced, the nut of the bolt 3-1 is clamped at the reduced inner diameter position of the locating pin 3-3, the nut of the bolt 3-1 limits the locating pin 3-3, and the locating pin 3-3 is prevented from being separated from the first flange 1 under the action of the elastic force of the spring 3-2.
The positioning pin 3-3 and the outer diameter of the same end with the reduced inner diameter form a reduced diameter, and the spring 3-2 is sleeved on the outer diameter reduced part of the positioning pin 3-3.
The positioning pin 3-3 is in clearance fit with the bolt 3-1.
the positioning pins 3-3 are in clearance fit with the first flange mounting holes and can slide smoothly.
The metal sealing ring 4 is made of soft metal materials such as silver and aluminum, is made of soft materials, and is conveniently bent into a square sealing ring. Preferably, the metal sealing ring 4 is an aluminum metal sealing ring, and can be baked and heated to about 350 ℃ to meet the requirement of high vacuum.
The diameter of the section of the metal sealing ring 4 is about 1mm ~ 4 mm.
The connecting piece 5 is a bolt; the nut is a self-tightening nut and has a locking structure.
when the flange is installed, the metal sealing ring 4 is hooped on the positioning pins 3-3 arranged at four corners of the first flange 1, so that the metal sealing ring 4 is prevented from sliding; when screwing up, the second flange 2 compresses the positioning pins 3-3 into the first flange mounting hole, and the second flange 2 and the first flange 1 are in contact with the metal sealing ring 4, so that the metal sealing ring 4 generates plastic deformation, and sealing is realized. The positioning assembly has a telescopic function, can provide a positioning function during installation, retracts during sealing, and does not affect vacuum sealing.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. A high-vacuum square flange metal sealing structure is characterized by comprising a first flange (1), a second flange (2), a positioning assembly (3), a metal sealing ring (4) and a connecting piece (5);
Four corners of the sealing side of the first flange (1) are provided with mounting holes, and threaded holes are formed at the bottoms of the mounting holes;
The positioning assembly (3) comprises a bolt (3-1), a spring (3-2) and a positioning pin (3-3); the positioning pin (3-3) is arranged in a threaded hole at the bottom of the first flange mounting hole through a bolt (3-1); a spring (3-2) is arranged between the positioning pin (3-3) and the wall of the first flange mounting hole;
The metal sealing ring (4) is bent to be square and is sleeved on positioning pins (3-3) in the positioning assemblies (3) arranged at four corners of the first flange (1);
the first flange (1) and the second flange (2) are fastened through a connecting piece (5).
2. a high vacuum square flange metal seal configuration according to claim 1, characterized in that said first flange (1) and said second flange (2) are flat flanges.
3. the high-vacuum square flange metal sealing structure is characterized in that the positioning pin (3-3) is of an internal hollow structure, the bolt (3-1) is located in the positioning pin (3-3), the inner diameter of one end of the positioning pin (3-3) is reduced, and the nut of the bolt (3-1) is clamped at the reduced inner diameter of the positioning pin (3-3).
4. A high vacuum square flange metal seal structure according to claim 3, characterized in that the positioning pin (3-3) and the outer diameter of the end with the same reduced inner diameter form a reduced diameter, and the spring (3-2) is sleeved on the reduced outer diameter part of the positioning pin (3-3).
5. a high vacuum square flange metal seal structure according to claim 1 or 3, characterized in that said positioning pin (3-3) is clearance fitted with the bolt (3-1).
6. A high vacuum square flange metal seal according to claim 1, 3 or 4, characterized in that said positioning pin (3-3) is clearance fitted to the first flange mounting hole.
7. The high-vacuum square flange metal sealing structure as claimed in claim 1, wherein the metal sealing ring (4) is made of soft metal material such as silver and aluminum, and is annealed after welding.
8. A high vacuum square flange metal seal according to claim 1 or 7, characterized in that said metal seal ring (4) is an aluminium metal seal ring.
9. A high vacuum square flange metal seal configuration according to claim 1, characterized in that said metal seal ring (4) has a cross-sectional diameter of about 1mm ~ 4 mm.
10. a high vacuum square flange metal seal structure according to claim 1, characterized in that said connecting member (5) is a bolt and the nut is a self-tightening nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910931705.8A CN110578799A (en) | 2019-09-29 | 2019-09-29 | High-vacuum square flange metal sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910931705.8A CN110578799A (en) | 2019-09-29 | 2019-09-29 | High-vacuum square flange metal sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110578799A true CN110578799A (en) | 2019-12-17 |
Family
ID=68813883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910931705.8A Pending CN110578799A (en) | 2019-09-29 | 2019-09-29 | High-vacuum square flange metal sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110578799A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115056163A (en) * | 2022-06-29 | 2022-09-16 | 和信精密科技（吴江）有限公司 | Accurate clamping positioning system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1166435A (en) * | 1968-01-23 | 1969-10-08 | Andrei Vasilieivich Balitsky | Joints in High-Vacuum Systems |
| CN203067786U (en) * | 2012-12-31 | 2013-07-17 | 攀钢集团工程技术有限公司 | Oil seal and sealing device comprising oil seal |
| CN107448709A (en) * | 2017-07-21 | 2017-12-08 | 江苏易元新材料科技有限公司 | A kind of flange |
| CN209146051U (en) * | 2018-12-07 | 2019-07-23 | 江西省博信玻璃有限公司 | A kind of energy saving and environment friendly photovoltaic coated glass |
| CN209309520U (en) * | 2018-12-07 | 2019-08-27 | 江苏金泰密封科技有限公司 | A kind of pipeline elastic sealing element |
| CN210739359U (en) * | 2019-09-29 | 2020-06-12 | 核工业理化工程研究院 | High-vacuum square flange metal sealing structure |
-
2019
- 2019-09-29 CN CN201910931705.8A patent/CN110578799A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1166435A (en) * | 1968-01-23 | 1969-10-08 | Andrei Vasilieivich Balitsky | Joints in High-Vacuum Systems |
| CN203067786U (en) * | 2012-12-31 | 2013-07-17 | 攀钢集团工程技术有限公司 | Oil seal and sealing device comprising oil seal |
| CN107448709A (en) * | 2017-07-21 | 2017-12-08 | 江苏易元新材料科技有限公司 | A kind of flange |
| CN209146051U (en) * | 2018-12-07 | 2019-07-23 | 江西省博信玻璃有限公司 | A kind of energy saving and environment friendly photovoltaic coated glass |
| CN209309520U (en) * | 2018-12-07 | 2019-08-27 | 江苏金泰密封科技有限公司 | A kind of pipeline elastic sealing element |
| CN210739359U (en) * | 2019-09-29 | 2020-06-12 | 核工业理化工程研究院 | High-vacuum square flange metal sealing structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115056163A (en) * | 2022-06-29 | 2022-09-16 | 和信精密科技（吴江）有限公司 | Accurate clamping positioning system |
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