CN204628547U - A kind of detachable blanking cover for double-layered case - Google Patents
A kind of detachable blanking cover for double-layered case Download PDFInfo
- Publication number
- CN204628547U CN204628547U CN201520023019.8U CN201520023019U CN204628547U CN 204628547 U CN204628547 U CN 204628547U CN 201520023019 U CN201520023019 U CN 201520023019U CN 204628547 U CN204628547 U CN 204628547U
- Authority
- CN
- China
- Prior art keywords
- plug
- interior
- interior plug
- blanking cover
- outer plug
- 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.)
- Expired - Fee Related
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Abstract
For a detachable blanking cover for double-layered case, comprise interior plug, spring collar, Compress Spring, outer plug, lock silk hole; Wherein: two kinds of cavitys different sized by outer plug centre are (Φ at internal diameter
b) hole place have inner polygon force transmission joint, outer plug has lock silk hole, and outer plug and casing are installed and afterwards played safety fuse cutout, and interior plug one end is contained in outer plug cavity, and for preventing interior plug from coming off, outer plug cavity outer end is with a spring collar; Be cavity in the middle of interior plug, a Compress Spring is equipped with in centre; Interior plug external diameter (Φ
a) end position at place is with polygonal force transmission joint; Compress Spring is equipped with in interior plug inside, plug is hexagon shape and structure, is connected with casing is reliable and stable.Advantage of the present utility model: the repertoire achieving double-layered case blanking cover with the simplest structure, in turn ensure that the designing requirement that blanking cover reliability maintainability and supportability at work, Security, ease for use etc. are higher at the same time.
Description
Technical field
The utility model relates to aeroengine field, particularly a kind of detachable blanking cover for double-layered case.
Background technique
Aero-engine compressor borescope plug is generally manual screw thread and fixes, locks safety fuse cutout, unfavorable motor field maintenance and workman's practical operation by hand.
Borescope plug, through double-layered case, should consider sealing, reliable lock, and consider that circumference, radial direction are movable again, be convenient to decompose, similar structure do not reported by data at home and abroad, drawing, and common borescope plug extends only through individual layer casing.
Borescope plug will block up two repeated holes through double-layered case, due to thermal distortion during work, there is relative movement.If the plug in two holes, can load during cold conditions, but just mutually may interfere when temperature raises, plug even can be caused to rupture, affect engine health.
Model utility content
The purpose of this utility model is, in order to meet the fixing of plug and locking and can the double-hole blocking function of movement mutually, spy provides a kind of detachable blanking cover for double-layered case.
The utility model provides a kind of detachable blanking cover for double-layered case, it is characterized in that: the described detachable blanking cover for double-layered case, comprises interior plug, spring collar, Compress Spring, outer plug, lock silk hole;
Wherein: two kinds of cavitys different sized by outer plug centre, there is inner polygon to transmit joint at the hole place that internal diameter is Φ B, see Fig. 2, outer plug has lock silk hole, outer plug and casing play safety fuse cutout after installing, interior plug one end is contained in outer plug cavity, and for preventing interior plug from coming off, outer plug cavity outer end is with a spring collar; Be cavity in the middle of interior plug, a Compress Spring is equipped with in centre;
The end position at external diameter Φ A place is designed with the outer polygonal force transmission joint coordinated with Φ B, sees Fig. 3.
Interior plug is equipped with Compress Spring, plug is hexagon shape and structure, facilitates the use of assembly wrench, and interior plug and outer plug have screw thread, is connected with casing is reliable and stable.
Interior plug and outer plug adopt the structure of sliding fit to block the hole of two borescopes.
Outer plug internal diameter is the polygonal force transmission joint of the Kong Chu of Φ B and the end position at interior plug external diameter Φ A place, can ensure during cooperation, by outer plug, interior plug is screwed into casing, in ensureing when mismatching, plug internal freedom is movable outside for plug, allow have axis and radial deformation between two plugs when engine operation, compensate the relative displacement of inside and outside casing with this, ensure that blanking cover reliably and is not destroyed.
Propose a kind of detachable blanking cover, can be used for the borescope hole of double-layered case, also may be used for other double layer construction and need frequent through hole machinery of decomposing.
Advantage of the present utility model:
Detachable blanking cover for double-layered case described in the utility model, achieve the repertoire of double-layered case blanking cover with the simplest structure, in turn ensure that the designing requirement that blanking cover reliability maintainability and supportability at work, Security, ease for use etc. are higher at the same time.The structure of this blanking cover is generalized to a lot of mechanical design field, particularly has broad application prospects in aeroengine field.Simultaneously to other for double layer construction and the plug that need decompose provides a perfect scheme.
Accompanying drawing explanation
Below in conjunction with drawings and the embodiments, the utility model is described in further detail:
Fig. 1 is borescope blocking cover structure schematic diagram;
Fig. 2 is the outer stopper structure schematic diagram of blanking cover;
Fig. 3 is stopper structure schematic diagram in blanking cover;
In figure, 1 is interior plug, and 2 is spring collar, and 3 is Compress Spring, and 4 is outer plug, and 5 is lock silk hole.
Embodiment
Embodiment 1
Present embodiments provide a kind of detachable blanking cover for double-layered case, it is characterized in that: the described detachable blanking cover for double-layered case, comprises interior plug, spring collar, Compress Spring, outer plug, lock silk hole;
Wherein: two kinds of cavitys different sized by outer plug centre, there is inner polygon to transmit joint at the hole place that internal diameter is Φ B, see Fig. 2, outer plug has lock silk hole, outer plug and casing play safety fuse cutout after installing, interior plug one end is contained in outer plug cavity, and for preventing interior plug from coming off, outer plug cavity outer end is with a spring collar; Be cavity in the middle of interior plug, a Compress Spring is equipped with in centre;
The end position at external diameter Φ A place is designed with the outer polygonal force transmission joint coordinated with Φ B, sees Fig. 3.
Interior plug is equipped with Compress Spring, plug is hexagon shape and structure, facilitates the use of assembly wrench, and interior plug and outer plug have screw thread, is connected with casing is reliable and stable.
Interior plug and outer plug adopt the structure of sliding fit to block the hole of two borescopes.
Outer plug internal diameter is the polygonal force transmission joint of the Kong Chu of Φ B and the end position at interior plug external diameter Φ A place, can ensure during cooperation, by outer plug, interior plug is screwed into casing, in ensureing when mismatching, plug internal freedom is movable outside for plug, allow have axis and radial deformation between two plugs when engine operation, compensate the relative displacement of inside and outside casing with this, ensure that blanking cover reliably and is not destroyed.
Propose a kind of detachable blanking cover, can be used for the borescope hole of double-layered case, also may be used for other double layer construction and need frequent through hole machinery of decomposing.
Claims (1)
1. for a detachable blanking cover for double-layered case, it is characterized in that: the described detachable blanking cover for double-layered case, comprises interior plug, spring collar, Compress Spring, outer plug, lock silk hole;
Wherein: two kinds of cavitys different sized by outer plug centre, there is inner polygon force transmission joint at the hole place being Φ B at internal diameter, outer plug has lock silk hole, outer plug and casing play safety fuse cutout after installing, interior plug one end is contained in outer plug cavity, for preventing interior plug from coming off, outer plug cavity outer end is with a spring collar; Be cavity in the middle of interior plug, a Compress Spring is equipped with in centre;
The end position at interior plug external diameter Φ A place is with polygonal force transmission joint;
Compress Spring is equipped with in interior plug inside, plug is hexagon shape and structure, facilitates the use of assembly wrench, and interior plug and outer plug have screw thread, is connected with casing is reliable and stable; Interior plug and outer plug adopt the structure of sliding fit to block the hole of two borescopes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520023019.8U CN204628547U (en) | 2015-01-14 | 2015-01-14 | A kind of detachable blanking cover for double-layered case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520023019.8U CN204628547U (en) | 2015-01-14 | 2015-01-14 | A kind of detachable blanking cover for double-layered case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204628547U true CN204628547U (en) | 2015-09-09 |
Family
ID=54047580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520023019.8U Expired - Fee Related CN204628547U (en) | 2015-01-14 | 2015-01-14 | A kind of detachable blanking cover for double-layered case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204628547U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112025605A (en) * | 2020-08-20 | 2020-12-04 | 中国航发沈阳发动机研究所 | Hole detector end cap assembly and disassembly tools |
| CN112228557A (en) * | 2020-10-16 | 2021-01-15 | 中国航发四川燃气涡轮研究院 | Blocking assembly and hole detecting and blocking structure |
| CN114439765A (en) * | 2020-10-30 | 2022-05-06 | 中国航发商用航空发动机有限责任公司 | Exploratory hole plug of double-layer casing and aircraft engine |
-
2015
- 2015-01-14 CN CN201520023019.8U patent/CN204628547U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112025605A (en) * | 2020-08-20 | 2020-12-04 | 中国航发沈阳发动机研究所 | Hole detector end cap assembly and disassembly tools |
| CN112025605B (en) * | 2020-08-20 | 2022-04-01 | 中国航发沈阳发动机研究所 | Hole detector end cap assembly and disassembly tools |
| CN112228557A (en) * | 2020-10-16 | 2021-01-15 | 中国航发四川燃气涡轮研究院 | Blocking assembly and hole detecting and blocking structure |
| CN114439765A (en) * | 2020-10-30 | 2022-05-06 | 中国航发商用航空发动机有限责任公司 | Exploratory hole plug of double-layer casing and aircraft engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20220114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |