CN105697779B - It is a kind of tiltedly to carve formula internal expanding sealing mandrel - Google Patents
It is a kind of tiltedly to carve formula internal expanding sealing mandrel Download PDFInfo
- Publication number
- CN105697779B CN105697779B CN201610113699.1A CN201610113699A CN105697779B CN 105697779 B CN105697779 B CN 105697779B CN 201610113699 A CN201610113699 A CN 201610113699A CN 105697779 B CN105697779 B CN 105697779B
- Authority
- CN
- China
- Prior art keywords
- stop collar
- connecting rod
- guide pad
- hole
- internal expanding
- 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
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/061—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with positioning means
Abstract
Formula internal expanding sealing mandrel is tiltedly carved the invention discloses a kind of, on turbine case air tightness test fixture, it includes connecting rod, stop collar and guide pad, wherein, the connecting rod is movably placed in the stop collar and carries out /V by limiting component, one end connection force application part of the connecting rod, the other end offers endoporus, one end of the guide pad is arranged in the endoporus, sealing ring is provided on the other end, the force application part drive connection bar moves the outside deformation of crush seal circle along stop collar and is sealed.Above-mentioned formula internal expanding sealing mandrel drive connection bar under the action of force application part of tiltedly carving moves the outside deformation of crush seal circle to reach sealing effect along stop collar.Not only improve the stability of air-leakage test；And make operator easier in practical operation, it is more effortless.
Description
Technical field
The present invention relates to a kind of turbine case air tightness test fixtures more particularly to a kind of turbine case air tightness test that is used for press from both sides
Tool tiltedly carves formula internal expanding sealing mandrel.
Background technology
It is well known that need to carry out air tightness test to it in the process of turbine case, at present, existing turbine case
The sealing means of the mandrel of air tightness test fixture use the sealing of interference mostly, this kind of sealing means are due to by part ruler itself
Very little influence causes air-tightness unstable result.Simultaneously because the problem of interference volume, add operator in operation process
Labor intensity.
The content of the invention
Formula internal expanding sealing mandrel is tiltedly carved it is an object of the invention to provide a kind of, there is the stabilization for improving air-leakage test
Property and it is easy to operate laborsaving the characteristics of, to solve the above problem existing for turbine case air tightness test fixture in the prior art.
For this purpose, the present invention uses following technical scheme：
It is a kind of tiltedly to carve formula internal expanding sealing mandrel, including connecting rod, stop collar and guide pad, wherein, the connecting rod can
It is movably placed in the stop collar and /V is carried out by limiting component, one end of the connecting rod connects force application part, separately
One end offers endoporus, and one end of the guide pad is arranged in the endoporus, and sealing ring, the force are provided on the other end
Component drive connection bar moves the outside deformation of crush seal circle along stop collar and is sealed.
Particularly, corresponding on the stop collar and guide pad to offer through hole, cooperation through hole offers in the connecting rod
Moving hole, axis pin sequentially pass through the through hole of stop collar, the through hole of moving hole and guide pad by connecting rod, stop collar and guide pad into
Row connection, the outer diameter of the apertures axis pin of the through hole are set, and the aperture of the moving hole is more than the outer diameter of the axis pin.
Particularly, one end of the guide pad is provided with up big and down small slant wedge mechanism, and in described on the guide pad
Slant wedge mechanism has been sequentially arranged above first step portion and second step portion, and the sealing ring is arranged in first step portion,
The connecting rod is outward extended with positive stop lug boss in the opening of the endoporus, and the end of the connecting rod is assemblied in second step
In portion, for the end set of the stop collar on positive stop lug boss, the height in the first step portion is less than the straight of the sealing ring
Footpath.
Particularly, one end of the connecting rod offers to connect the connecting hole of force application part.
Beneficial effects of the present invention are that the formula internal expanding of tiltedly carving seals work of the mandrel in force application part compared with prior art
The outside stress deformation of crush seal circle is moved to reach sealing effect along stop collar with lower drive connection bar.Not only improve air-tightness
The stability of detection；And make operator easier in practical operation, it is more effortless.
Description of the drawings
Fig. 1 is the sectional view for tiltedly carving formula internal expanding sealing mandrel that the specific embodiment of the invention 1 provides.
In figure：
1st, connecting rod；2nd, stop collar；3rd, guide pad；4th, connecting hole；5th, endoporus；6th, positive stop lug boss；7th, slant wedge mechanism；8th,
One stage portion；9th, second step portion；10th, sealing ring；11st, moving hole；12nd, axis pin.
Specific embodiment
Technical solution to further illustrate the present invention below with reference to the accompanying drawings and specific embodiments.
Refering to Figure 1, the section for tiltedly carving formula internal expanding sealing mandrel that Fig. 1, which is the specific embodiment of the invention 1, to be provided
Figure.
In the present embodiment, a kind of formula internal expanding sealing mandrel of tiltedly carving is mounted on turbine case air tightness test fixture, including
Connecting rod 1, stop collar 2 and guide pad 3, one end of the connecting rod 1 offer connecting hole 4, and the connecting hole 4 connects force section
Part offers endoporus 5 as force side, the other end of the connecting rod 1, and the opening of the endoporus 5 is outward extended with limit convex
Platform 6, the force side of the connecting rod 1, which penetrates in the stop collar 2 and passes through positive stop lug boss 6, carries out /V, the guide pad 3
One end is arranged in the endoporus 5, and the other end is provided with up big and down small slant wedge mechanism 7, and in described oblique on the guide pad 3
That carves mechanism 7 has been sequentially arranged above first step portion 8 and second step portion 9, and sealing ring 10 is arranged in first step portion 8,
The end of the connecting rod 1 is assemblied in second step portion 9, and the height in the first step portion 8 is less than the sealing ring 10
Diameter.
Corresponding on the stop collar 2 and guide pad 3 to offer through hole, cooperation through hole offers movement in the connecting rod 1
Hole 11, axis pin 12 sequentially pass through the through hole of stop collar 2, and the through hole of moving hole 11 and guide pad 3 by connecting rod 1, stop collar 2 and is led
It is attached to block 3, the outer diameter of the apertures axis pin 12 of the through hole is set, and the aperture of the moving hole 11 is more than the pin
The outer diameter of axis 12, so that connecting rod 1 can be moved along stop collar 2.
During sealing, force application part exerts a force to connecting rod 1, and connecting rod 1 is moved along stop collar 2, then the other end pair of connecting rod 1
Sealing ring 10 is squeezed, and outwards deforms to reach sealing effect after making 10 stress of sealing ring.Connecting rod 1 is in stop collar 2 and leads
Under the double limitation of block 3 is oriented to, the stability of sealing ensure that.
Above example is to elaborate the basic principle and characteristic of the present invention, and the present invention limits from above-mentioned example,
Without departing from the spirit and scope, the present invention also has various changes, these changes and modifications are both fallen within
In scope of the claimed invention.The scope of the present invention is defined by the appended claims and its equivalents.
Claims (3)
1. a kind of tiltedly carve formula internal expanding sealing mandrel, including connecting rod, stop collar and guide pad, which is characterized in that the connection
Bar is movably placed in the stop collar and carries out /V, one end connection force section of the connecting rod by limiting component
Part, the other end offer endoporus, and one end of the guide pad is arranged in the endoporus, sealing ring is provided on the other end, institute
State force application part drive connection bar along stop collar move crush seal circle outwards deformation be sealed；The stop collar and guide pad
Upper correspondence offers through hole, and cooperation through hole offers moving hole in the connecting rod, and axis pin sequentially passes through the through hole of stop collar, connects
The moving hole of extension bar and the through hole of guide pad, stop collar, connecting rod and guide pad are attached, the through hole of the stop collar and
The aperture of the through hole of the guide pad coordinates the outer diameter of the axis pin to set, and the aperture of the moving hole is more than the axis pin
Outer diameter.
2. according to claim 1 tiltedly carve formula internal expanding sealing mandrel, which is characterized in that one end of the guide pad is provided with
Up big and down small slant wedge mechanism, and on the guide pad first step portion and have been sequentially arranged above in the slant wedge mechanism
Two stage portions, the sealing ring are arranged in first step portion, and the connecting rod is outward extended in the opening of the endoporus
Positive stop lug boss, the end of the connecting rod are assemblied in second step portion, the end set of the stop collar on positive stop lug boss,
The height in the first step portion is less than the diameter of the sealing ring.
3. according to claim 1 tiltedly carve formula internal expanding sealing mandrel, which is characterized in that one end of the connecting rod offers
For connecting the connecting hole of force application part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610113699.1A CN105697779B (en) | 2016-02-29 | 2016-02-29 | It is a kind of tiltedly to carve formula internal expanding sealing mandrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610113699.1A CN105697779B (en) | 2016-02-29 | 2016-02-29 | It is a kind of tiltedly to carve formula internal expanding sealing mandrel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105697779A CN105697779A (en) | 2016-06-22 |
| CN105697779B true CN105697779B (en) | 2018-05-25 |
Family
ID=56222825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610113699.1A Active CN105697779B (en) | 2016-02-29 | 2016-02-29 | It is a kind of tiltedly to carve formula internal expanding sealing mandrel |
Country Status (1)
| Country | Link |
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| CN (1) | CN105697779B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071797A (en) * | 2016-11-10 | 2018-05-25 | 常州星宇车灯股份有限公司 | A kind of adaptive dibit fastening sealing device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205401702U (en) * | 2016-02-29 | 2016-07-27 | 无锡烨隆精密机械有限公司 | Carve sealed dabber of formula internal expanding to one side |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201521717U (en) * | 2009-07-28 | 2010-07-07 | 中冶南方工程技术有限公司 | Cable lead-in wire seal device under vacuum positive pressure and negative pressure |
| JP6060032B2 (en) * | 2013-04-23 | 2017-01-11 | 株式会社神戸製鋼所 | Compressor |
| CN104676188B (en) * | 2014-12-12 | 2017-01-11 | 中国海洋石油总公司 | Internal-expansion type hydraulic boosting plugging device for submarine pipeline |
| CN205038016U (en) * | 2015-09-17 | 2016-02-17 | 青岛华涛汽车模具有限公司 | Airtight floating shutoff that detects machine of car intake pipe |
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2016
- 2016-02-29 CN CN201610113699.1A patent/CN105697779B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205401702U (en) * | 2016-02-29 | 2016-07-27 | 无锡烨隆精密机械有限公司 | Carve sealed dabber of formula internal expanding to one side |
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| Publication number | Publication date |
|---|---|
| CN105697779A (en) | 2016-06-22 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 214187 Luoshe matching area, Huishan Economic Development Zone, Wuxi, Jiangsu Patentee after: Wuxi Yalong precision machinery Limited by Share Ltd Address before: 214000 Luosi double Temple Industrial Park, Huishan District, Wuxi, Jiangsu, China Patentee before: Yelong Precision Machinery Co., Ltd. |
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| CP03 | Change of name, title or address |