CN206513827U - A kind of casing hole sealing structure - Google Patents
A kind of casing hole sealing structure Download PDFInfo
- Publication number
- CN206513827U CN206513827U CN201720087939.5U CN201720087939U CN206513827U CN 206513827 U CN206513827 U CN 206513827U CN 201720087939 U CN201720087939 U CN 201720087939U CN 206513827 U CN206513827 U CN 206513827U
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- thread
- sealing
- nut
- sealing ring
- casing
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Abstract
The utility model provides a kind of casing hole sealing structure, including sealing bolt (1), nut (2), sealing ring (3), the ladder screw rod that sealing bolt (1) is successively decreased by nut and diameter is constituted, ladder screw diameter is descending to be followed successively by the cooperation section (11) for coordinating casing (4) aperture to install, it is set with the seal section (12) of sealing ring (3), thread segment (14) and gripping section (15) that attaching nut (2) is installed, pass through beveled end (13) chamfered transition between seal section (12) and thread segment (14), nut (2) includes sealed end (21) and the end of thread (23), sealed end (21) is used to sealing ring (3) being squeezed into seal section (12), the end of thread (23) is socketed on thread segment (14), by screwing the depth for controlling the sealed end (21) to enter seal section (12).Structure provided by the utility model, may be implemented in the sealing ring that damage is changed in the case of not decomposing experimental rig internal structure.
Description
Technical field
The utility model belongs to the casing pressure test in aero-engine field, more particularly to aero-engine, specifically relates to
And a kind of casing hole sealing structure.
Background technology
, it is necessary to be sealed to various interfaces, mounting seat etc. on casing in aero-engine casing pressure test.For class
Like the circular hole of the borescope seat of structure, due to its end face on-plane surface, it is impossible to use flat seal, currently existing scheme is axially close
Envelope, as shown in figure 1, sealing ring is loaded in the seal groove of sealing bolt, loads interface holes, the other end is by nut by casing side
Locking, but there is following defect in this programme：1st, in assembling because the more sharp sealing ring that easily causes in casing hole side is damaged；If the 2,
, just must be by due to that can not take out sealing bolt from outside in experiments it is found that this part leakage is, it is necessary to when changing sealing ring
Internal structure is decomposed, because casing pressure test especially combustion box class experimental rig internal structure is sufficiently complex, if
This position is located at whole experimental rig bottom, then decomposer workload is huge.
Utility model content
The purpose of this utility model is to provide a kind of casing hole sealing structure, overcomes or alleviated by prior art at least
One drawbacks described above.
The purpose of this utility model is achieved through the following technical solutions：A kind of casing hole sealing structure, for sealer
Casket hole, including sealing bolt, nut, sealing ring,
The ladder screw rod that the sealing bolt is successively decreased by nut and diameter is constituted, and the ladder screw diameter is descending successively
For the cooperation section of the cooperation casing aperture installation, the seal section for being set with the sealing ring, for coordinating the nut to pacify
The thread segment and gripping section of dress, wherein, pass through bevel phase chamfered transition between the seal section and the thread segment；
The nut includes sealed end and the end of thread, and the sealed end is used to the sealing ring being squeezed into the seal section
On, the end of thread is socketed on the thread segment, by screwing the depth for controlling the sealed end to enter the seal section.
Preferably, the sealed end is cylindrical shape, and the cylindrical shape sealed end coordinates the casing hole and the seal section
Between the annulus that is formed install.
Preferably, the sealed end contacts one end rounding setting with the sealing ring, in order to avoid the scratch sealing ring.
Preferably, the end of thread is cylindrical shape, and the end of thread is with the sealed end away from described sealing ring one end phase
Even, the cylindrical shape end of thread outside diameter is more than the sealed end outside diameter, while diameter of bore is less than in the sealed end
Bore dia, wherein, the end of thread endoporus is to coordinate the thread segment to install, and the cylindrical shape end of thread is close to the sealed end
One side end face is locating surface, to position the nut location.
A kind of casing hole provided by the utility model is with the beneficial effect of sealing structure, be may be implemented in and is not decomposed examination
The sealing ring of damage is changed in the case of experiment device internal structure, is used manpower and material resources sparingly, shortens the test period, while the structure energy
Enough it is applied in the casing pressure test of similar structures, or other have in the sealing structure for changing sealing ring needs.
Brief description of the drawings
Fig. 1 is the installation diagram of existing casing hole sealing structure；
Fig. 2 is the installation diagram of the utility model casing hole sealing structure；
Fig. 3 is the sealing bolt structural representation in the sealing structure of the utility model casing hole；
Fig. 4 is the nut structure schematic diagram in the sealing structure of the utility model casing hole；
Fig. 5 is the replacing flow chart of sealing ring in the sealing structure of the utility model casing hole.
Reference：
1- sealing bolts, 2- nuts, 3- sealing rings, 4- casings, 11- coordinate section, 12- seal sections, 13- bevel phases, 14- spiral shells
Line section, 15- gripping sections, 21- sealed ends, 22- locating surfaces, the 23- ends of thread.
Embodiment
To make the purpose, technical scheme and advantage of the utility model implementation clearer, below in conjunction with the utility model
Accompanying drawing in embodiment, the technical scheme in the utility model embodiment is further described in more detail.In the accompanying drawings, from beginning
Same or similar element or element with same or like function are represented to same or similar label eventually.Described reality
It is a part of embodiment of the utility model to apply example, rather than whole embodiments.The embodiment described below with reference to accompanying drawing
It is exemplary, it is intended to for explaining the utility model, and it is not intended that to limitation of the present utility model.It is new based on this practicality
Embodiment in type, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of the utility model protection.
Casing hole of the present utility model is described in further details with sealing structure below in conjunction with the accompanying drawings.
As shown in Fig. 2 a kind of casing hole sealing structure, for sealing the hole of casing 4, including it is sealing bolt 1, nut 2, close
Seal 3.
As shown in figure 3, the ladder screw rod that sealing bolt 1 is successively decreased by nut and diameter is constituted, the ladder screw diameter is by big
Be followed successively by cooperation section 11, seal section 12, thread segment 14 and gripping section 15 to small, wherein, seal section 12 and thread segment 14 it
Between by the chamfered transition of bevel phase 13, cooperation section 11 coordinates the aperture of casing 4 to install, and is positioned for sealing bolt 1 and no-load
Under fixation, while cooperation section 11 need to have certain tightness when coordinating with the hole of casing 4, seal section 12 is used to be set with sealing ring 3, tiltedly
Face section 13 is the passage that sealing ring 3 imports seal section 12, while the section need to be used to match somebody with somebody with the rounding off of seal section 12, thread segment 14
Close nut 2 to install, gripping section 15 is for loading fixation during sealing ring 3 to sealing bolt 1.
As shown in figure 4, nut 2 includes sealed end 21 and the end of thread 23, the sealed end 21 selection is cylindrical shape, and cylindrical shape is close
End-blocking 21 coordinates the annulus formed between the hole of casing 4 and seal section 12 to install, and the sealed end 21 is close for sealing ring 3 to be squeezed into
The predetermined sealing station sealed in section 12, size design should meet the extrusion clearance requirement of sealing ring 3, and edge rounding is set, with
Exempt from scratch sealing ring 3.The end of thread 23 is also cylindrical shape, and the end of thread 23 is connected with sealed end 21 away from the one end of sealing ring 3, the circle
The outside diameter of cylindrical screw thread end 23 is more than the outside diameter of sealed end 21, while diameter of bore is less than the diameter of bore of sealed end 21, its
In, the endoporus of the end of thread 23 is installed to matching thread section 14, by screwing to control sealed end 21 to enter seal section 12
The depth.The cylindrical shape end of thread 23 is locating surface 22 close to the side end face of sealed end 21 1, to the position of location nut 2, when nut 2
When being screwed to locating surface 22 and being contacted with the hole side of casing 4, it can be ensured that the sealing ring 3 is in predetermined sealing station.
The Renewal process of sealing ring 3 is as shown in figure 5, and according to order from left to right.Nut 2 is back-outed, pliers is used
Deng the gripping section 15 of clamping device grip seal bolt 1, the sealing ring 3 of damage is taken out with sharp instrument, placed into new close
Seal 3, makes Xinmi City's seal 3 be directed to the edge of seal section 12 by the bevel phase 13 on sealing bolt 1, most using the instrument
After be screwed into nut 2, the specific pre-position for being pushed into sealing ring 3 on seal section 12 using its sealed end 21.
It is described above, embodiment only of the present utility model, but protection domain of the present utility model do not limit to
In this, any one skilled in the art is in the technical scope that the utility model is disclosed, the change that can be readily occurred in
Change or replace, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with described
Scope of the claims is defined.
Claims (4)
1. a kind of casing hole sealing structure, for sealing casing (4) hole, it is characterised in that including sealing bolt (1), nut
(2), sealing ring (3),
The ladder screw rod that the sealing bolt (1) is successively decreased by nut and diameter is constituted, and the ladder screw diameter is descending successively
For the cooperation section (11) of cooperation casing (4) the aperture installation, the seal section (12) for being set with the sealing ring (3), it is used for
The thread segment (14) and gripping section (15) for coordinating the nut (2) to install, wherein, in the seal section (12) and the screw thread
Pass through bevel phase (13) chamfered transition between section (14)；
The nut (2) includes sealed end (21) and the end of thread (23), and the sealed end (21) is used to squeeze the sealing ring (3)
Enter onto the seal section (12), the end of thread (23) is socketed on the thread segment (14), by screwing to control this
Sealed end (21) enters the depth of the seal section (12).
2. casing hole according to claim 1 sealing structure, it is characterised in that the sealed end (21) is cylindrical shape,
The cylindrical shape sealed end (21) coordinates the annulus formed between casing (4) hole and the seal section (12) to install.
3. casing hole according to claim 2 sealing structure, it is characterised in that the sealed end (21) and the sealing
(3) contact one end rounding is enclosed to set, in order to avoid the scratch sealing ring (3).
4. casing hole according to claim 2 sealing structure, it is characterised in that the end of thread (23) is cylindrical shape,
The end of thread (23) is connected with the sealed end (21) away from the sealing ring (3) one end, and the cylindrical shape end of thread (23) is cylindrical
Diameter is more than the sealed end (21) outside diameter, while diameter of bore is less than the sealed end (21) diameter of bore, wherein, should
The end of thread (23) endoporus is to coordinate the thread segment (14) to install, and the cylindrical shape end of thread (23) is close to the sealed end
(21) one side end faces are locating surface (22), to position the nut (2) position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720087939.5U CN206513827U (en) | 2017-01-23 | 2017-01-23 | A kind of casing hole sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720087939.5U CN206513827U (en) | 2017-01-23 | 2017-01-23 | A kind of casing hole sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206513827U true CN206513827U (en) | 2017-09-22 |
Family
ID=59866510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720087939.5U Active CN206513827U (en) | 2017-01-23 | 2017-01-23 | A kind of casing hole sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206513827U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397467A (en) * | 2018-05-07 | 2018-08-14 | 大盛微电科技股份有限公司 | Sealing fixed Combination screw for electric high-voltage environment |
| CN108468699A (en) * | 2018-05-09 | 2018-08-31 | 河南森源电气股份有限公司 | A kind of sealing screw component and its attachment screw |
| CN113236438A (en) * | 2021-06-09 | 2021-08-10 | 中国民用航空飞行学院 | Method for repairing lubricating oil leakage of aviation piston engine casing through bolt |
-
2017
- 2017-01-23 CN CN201720087939.5U patent/CN206513827U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397467A (en) * | 2018-05-07 | 2018-08-14 | 大盛微电科技股份有限公司 | Sealing fixed Combination screw for electric high-voltage environment |
| CN108468699A (en) * | 2018-05-09 | 2018-08-31 | 河南森源电气股份有限公司 | A kind of sealing screw component and its attachment screw |
| CN113236438A (en) * | 2021-06-09 | 2021-08-10 | 中国民用航空飞行学院 | Method for repairing lubricating oil leakage of aviation piston engine casing through bolt |
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| GR01 | Patent grant |