CN205401702U - Carve sealed dabber of formula internal expanding to one side - Google Patents
Carve sealed dabber of formula internal expanding to one side Download PDFInfo
- Publication number
- CN205401702U CN205401702U CN201620151452.4U CN201620151452U CN205401702U CN 205401702 U CN205401702 U CN 205401702U CN 201620151452 U CN201620151452 U CN 201620151452U CN 205401702 U CN205401702 U CN 205401702U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- stop collar
- hole
- guide pad
- 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.)
- Withdrawn - After Issue
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a carve sealed dabber of formula internal expanding to one side installs on turbine shell gas tightness test fixture, and it includes connecting rod, stop collar and guide block, wherein, the movably cover of connecting rod in just carry on spacingly through spacing part in the stop collar, force applying portion spare is connected to the one end of connecting rod, and the hole has been seted up to the other end, the one end of guide block set up in in the hole, be provided with the sealing washer on the other end, force applying portion spare driving connecting rod removes outside deformation of crush seal circle along the stop collar and seals. Above -mentioned carve sealed dabber of formula internal expanding to one side driving connecting rod under the effect of force applying portion spare removes the crush seal circle along the stop collar and outwards warp in order to reach sealed effect. Not only improve the stability that the gas tightness detected, and make the operator more simple and convenient in actual operation, more laborsaving.
Description
Technical field
This utility model relates to a kind of turbine case air tightness test fixture, particularly relates to a kind of formula of tiltedly carving internal expanding for turbine case air tightness test fixture and seals mandrel.
Background technology
It is known that, needing it is carried out air tightness test in the course of processing of turbine case, at present, the sealing means of the mandrel of existing turbine case air tightness test fixture adopts the sealing of interference mostly, this kind of sealing means, due to the impact by the size of part own, causes air-tightness unstable result.Simultaneously because the problem of the magnitude of interference, add operator labor intensity in operation process.
Utility model content
The purpose of this utility model is in that providing one tiltedly to carve formula internal expanding seals mandrel, and it has the stability and labour-saving simple to operate feature that improve air-leakage test, to solve the problems referred to above that in prior art, turbine case air tightness test fixture exists.
For reaching this purpose, this utility model by the following technical solutions:
One is tiltedly carved formula internal expanding and is sealed mandrel, it includes connecting rod, stop collar and guide pad, wherein, described connecting rod is placed on movably in described stop collar and is undertaken spacing by limiting component, one end of described connecting rod connects force application part, and the other end offers endoporus, and one end of described guide pad is arranged in described endoporus, being provided with sealing ring on the other end, described force application part drives connecting rod to move crush seal circle along stop collar outwards to deform and seal.
Especially, on described stop collar and guide pad, correspondence offers through hole, described connecting rod coordinate through hole offer moving hole, bearing pin sequentially passes through the through hole of stop collar, connecting rod, stop collar and guide pad are attached by the through hole of moving hole and guide pad, the external diameter of the apertures bearing pin of described through hole is arranged, and the aperture of described moving hole is more than the external diameter of described bearing pin.
Especially, one end of described guide pad is provided with up big and down small slant wedge mechanism, and in the first step portion that has been sequentially arranged above of described slant wedge mechanism and second step portion on described guide pad, described sealing ring is arranged in first step portion, described connecting rod is outward extended with positive stop lug boss in the opening part of described endoporus, the end of described connecting rod is assemblied in second step portion, and the end of described stop collar is arranged on positive stop lug boss, and the height in described first step portion is less than the diameter of described sealing ring.
Especially, one end of described connecting rod offers the connecting hole for connecting force application part.
The beneficial effects of the utility model are, compared with prior art described formula internal expanding sealing mandrel of tiltedly carving drives connecting rod to move the outside stress deformation of crush seal circle to reach sealing effectiveness along stop collar under the effect of force application part.Not only improve the stability of air-leakage test；And make operator easier in practical operation, more laborsaving.
Accompanying drawing explanation
Fig. 1 is the profile that formula of tiltedly the carving internal expanding that this utility model detailed description of the invention 1 provides seals mandrel.
In figure:
1, connecting rod；2, stop collar；3, guide pad；4, connecting hole；5, endoporus；6, positive stop lug boss；7, slant wedge mechanism；8, first step portion；9, second step portion；10, sealing ring；11, moving hole；12, bearing pin.
Detailed description of the invention
The technical solution of the utility model is further illustrated below in conjunction with accompanying drawing and by detailed description of the invention.
Referring to shown in Fig. 1, Fig. 1 is the profile that formula of tiltedly the carving internal expanding that this utility model detailed description of the invention 1 provides seals mandrel.
nullIn the present embodiment，One is tiltedly carved formula internal expanding sealing mandrel and is arranged on turbine case air tightness test fixture，It includes connecting rod 1、Stop collar 2 and guide pad 3，One end of described connecting rod 1 offers connecting hole 4，Described connecting hole 4 connects force application part as force side，The other end of described connecting rod 1 offers endoporus 5，The opening part of described endoporus 5 is outward extended with positive stop lug boss 6，The force side of described connecting rod 1 penetrates in described stop collar 2 and is undertaken spacing by positive stop lug boss 6，One end of described guide pad 3 is arranged in described endoporus 5，The other end is provided with up big and down small slant wedge mechanism 7，And in the first step portion 8 that has been sequentially arranged above of described slant wedge mechanism 7 and second step portion 9 on described guide pad 3，Sealing ring 10 is arranged in first step portion 8，The end of described connecting rod 1 is assemblied in second step portion 9，The height in described first step portion 8 is less than the diameter of described sealing ring 10.
On described stop collar 2 and guide pad 3, correspondence offers through hole, described connecting rod 1 coordinate through hole offer moving hole 11, bearing pin 12 sequentially passes through the through hole of stop collar 2, connecting rod 1, stop collar 2 and guide pad 3 are attached by the through hole of moving hole 11 and guide pad 3, the external diameter of the apertures bearing pin 12 of described through hole is arranged, the aperture of described moving hole 11 is more than the external diameter of described bearing pin 12, so that connecting rod 1 can move along stop collar 2.
During sealing, connecting rod 1 is exerted a force by force application part, and connecting rod 1 moves along stop collar 2, then sealing ring 10 is extruded by the other end of connecting rod 1, outwards deforms to reach sealing effectiveness after making sealing ring 10 stress.Connecting rod 1 is under the double limitation of stop collar 2 and guide pad 3 leads, it is ensured that the stability of sealing.
Above example simply elaborates ultimate principle of the present utility model and characteristic; this utility model is not limited by above-mentioned example; under the premise without departing from this utility model spirit and scope; this utility model also has various change and change, and these changes and change both fall within the scope of claimed this utility model.This utility model claims scope and is defined by appending claims and equivalent thereof.
Claims (4)
1. tiltedly carve formula internal expanding sealing mandrel for one kind, it includes connecting rod, stop collar and guide pad, it is characterized in that, described connecting rod is placed on movably in described stop collar and is undertaken spacing by limiting component, one end of described connecting rod connects force application part, and the other end offers endoporus, and one end of described guide pad is arranged in described endoporus, being provided with sealing ring on the other end, described force application part drives connecting rod to move crush seal circle along stop collar outwards to deform and seal.
2. formula internal expanding of tiltedly carving according to claim 1 seals mandrel, it is characterized in that, on described stop collar and guide pad, correspondence offers through hole, described connecting rod coordinate through hole offer moving hole, bearing pin sequentially passes through the through hole of stop collar, connecting rod, stop collar and guide pad are attached by the through hole of moving hole and guide pad, and the external diameter of the apertures bearing pin of described through hole is arranged, and the aperture of described moving hole is more than the external diameter of described bearing pin.
3. formula of tiltedly the carving internal expanding according to any one of claim 1 or 2 seals mandrel, it is characterized in that, one end of described guide pad is provided with up big and down small slant wedge mechanism, and in the first step portion that has been sequentially arranged above of described slant wedge mechanism and second step portion on described guide pad, described sealing ring is arranged in first step portion, described connecting rod is outward extended with positive stop lug boss in the opening part of described endoporus, the end of described connecting rod is assemblied in second step portion, the end of described stop collar is arranged on positive stop lug boss, the height in described first step portion is less than the diameter of described sealing ring.
4. formula internal expanding of tiltedly carving according to claim 1 seals mandrel, it is characterised in that one end of described connecting rod offers the connecting hole for connecting force application part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620151452.4U CN205401702U (en) | 2016-02-29 | 2016-02-29 | Carve sealed dabber of formula internal expanding to one side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620151452.4U CN205401702U (en) | 2016-02-29 | 2016-02-29 | Carve sealed dabber of formula internal expanding to one side |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205401702U true CN205401702U (en) | 2016-07-27 |
Family
ID=56423826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620151452.4U Withdrawn - After Issue CN205401702U (en) | 2016-02-29 | 2016-02-29 | Carve sealed dabber of formula internal expanding to one side |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205401702U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697779A (en) * | 2016-02-29 | 2016-06-22 | 无锡烨隆精密机械有限公司 | Inclined wedge type inner expansion sealing mandrel |
-
2016
- 2016-02-29 CN CN201620151452.4U patent/CN205401702U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697779A (en) * | 2016-02-29 | 2016-06-22 | 无锡烨隆精密机械有限公司 | Inclined wedge type inner expansion sealing mandrel |
| CN105697779B (en) * | 2016-02-29 | 2018-05-25 | 无锡烨隆精密机械有限公司 | It is a kind of tiltedly to carve formula internal expanding sealing mandrel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160727 Effective date of abandoning: 20180525 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20160727 Effective date of abandoning: 20180525 |