CN204493407U - A kind of packing ring - Google Patents
A kind of packing ring Download PDFInfo
- Publication number
- CN204493407U CN204493407U CN201520136064.4U CN201520136064U CN204493407U CN 204493407 U CN204493407 U CN 204493407U CN 201520136064 U CN201520136064 U CN 201520136064U CN 204493407 U CN204493407 U CN 204493407U
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- endoporus
- packing ring
- bolt
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- utility
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Abstract
The utility model provides a kind of packing ring, relates to bolt assembly technology, and can solve packing ring and stepped bolt cannot the problem of matched well.The endoporus of described packing ring comprises the large endoporus of coaxial setting and little endoporus, coordinated with the polished rod of stepped bolt by large endoporus, limit its radial deflection, stress equalization is reasonable, avoid the fatigue fracture causing because of discontinuity equalization bolt at place of ladder transition district, make packing ring and stepped bolt matched well.
Description
Technical field
The utility model relates to bolt assembly technology, is specifically related to a kind of packing ring.
Background technique
When aircaft configuration is with bolts, when bolt mainly bears shearing, often select the stepped bolt that the diameter of thread is less than its polished rod diameter, such as HB8033 hexagon head bolt, HB8034 countersunk screw etc.Owing to there is ladder transition, at least need installation two packing rings, and be difficult to and bolt matched well at ladder transition district inside diameter of gasket, be easy to during fastening nut occur packing ring radial deflection, discontinuity equalization, easily makes bolt in the place's fatigue fracture of ladder transition district in Long-Time Service process.
Summary of the invention
The utility model provides a kind of packing ring, and can solve packing ring and stepped bolt cannot the problem of matched well.
In order to achieve the above object, embodiment of the present utility model adopts following technological scheme:
A kind of packing ring, the endoporus of described packing ring comprises the large endoporus of coaxial setting and little endoporus.
Alternatively, have the transition zone in 45 ° of chamferings between described large endoporus and little endoporus, described large endoporus and little endoporus are by described transition zone transition.
Alternatively, described transition zone and described large endoporus joint have rounding, and described chamfering radius is 0.5mm.
Alternatively, the outer seamed edge of the described packing ring at described little endoporus place has chamfering.
Alternatively, described large endoporus is inner coaxial and seal and be provided with rubber ring with little endoporus.
The beneficial effects of the utility model: the large endoporus of the utility model packing ring coordinates with the polished rod of stepped bolt, limits its radial deflection, stress equalization is reasonable, avoids the fatigue fracture causing bolt at place of ladder transition district because of discontinuity equalization; In addition, because packing ring was kept to 1 by originally installing at least 2, use, easier for installation, cost-saving.
Accompanying drawing explanation
Accompanying drawing to be herein merged in specification and to form the part of this specification, shows and meets embodiment of the present utility model, and is used from specification one and explains principle of the present utility model.
Fig. 1 is according to the utility model embodiment's gasket construction schematic diagram;
Fig. 2 is structural representation when coordinating with stepped bolt according to the utility model embodiment's packing ring.
Embodiment
Here will be described exemplary embodiment in detail, its sample table shows in the accompanying drawings.When description below relates to accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawing represents same or analogous key element.
As depicted in figs. 1 and 2, a kind of packing ring of the present utility model, can with stepped bolt with the use of.Particularly, the endoporus of packing ring 1 comprises large endoporus 11 and the little endoporus 12 of coaxial setting, and the stepped bolt that the internal diameter of large and small endoporus generally coordinates as required is arranged.
The polished rod diameter of usual stepped bolt can be multiple, the present embodiment is 8 ~ 22 millimeters for diameter range, now larger than the internal diameter of little endoporus 12 2 millimeters of the internal diameter of large endoporus 11, and larger than bolt light rod base diameter 0.4 millimeter of the internal diameter of large endoporus 11, the wall thickness of the packing ring 1 of large endoporus 11 part is 2 ~ 4 millimeters.In addition, packing ring total thickness is 4 ~ 7 millimeters, and wherein shared by large endoporus 11 part, thickness is 2 ~ 4 millimeters.Particularly, when bolt light rod base diameter is 8 ~ 10 millimeters, shared by large endoporus 11 part, thickness is 2 millimeters; When bolt light rod base diameter is 12 ~ 14 millimeters, shared by large endoporus 11 part, thickness is 2.5 millimeters; When bolt light rod base diameter is 16 millimeters, shared by large endoporus 11 part, thickness is 3 millimeters; When bolt light rod base diameter is 18 ~ 20 millimeters, shared by large endoporus 11 part, thickness is 3.5 millimeters; When bolt light rod base diameter is 22 millimeters, shared by large endoporus 11 part, thickness is 4 millimeters.
From packing ring two end faces respectively to interior, have the transition zone 13 in 45 ° of chamferings between described large endoporus 11 and little endoporus 12, described large endoporus 11 and little endoporus 12 are by the transition of described transition zone 13.Further, described transition zone 13 has rounding with described large endoporus 11 joint, and described chamfering radius is 0.5 millimeter (mm).The outer seamed edge of the described packing ring 1 at described little endoporus 12 place has 1 millimeter × 45 ° chamferings.
When having seal request, can also described large endoporus 11 and little endoporus 12 inner coaxial and seal and be provided with rubber ring and seal, and after increasing rubber ring, be beneficial to the sealing configuration position uses such as fuel tank while, packing ring 1 also can be used for plain bolt.
The large endoporus 11 of the utility model packing ring 1 coordinates with the polished rod of stepped bolt, limit its radial deflection, stress equalization is reasonable, avoid the fatigue fracture causing bolt at place of ladder transition district because of discontinuity equalization, the important force part of mainly bearing shearing due to stepped bolt in aircaft configuration uses in a large number, therefore uses extensively.In addition, because packing ring 1 was kept to 1 by originally installing at least 2, use, easier for installation, cost-saving.Further, when there being seal request, be more convenient for outside brushing sealer, and rubber ring can be increased in packing ring 1 and strengthen sealing effect.
The above; be only embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.
Claims (5)
1. a packing ring, is characterized in that, the endoporus of described packing ring (1) comprises large endoporus (11) and the little endoporus (12) of coaxial setting.
2. packing ring according to claim 1, it is characterized in that, have the transition zone (13) in 45 ° of chamferings between described large endoporus (11) and little endoporus (12), described large endoporus (11) and little endoporus (12) are by described transition zone (13) transition.
3. packing ring according to claim 2, is characterized in that, described transition zone (13) and described large endoporus (11) joint have rounding, and described chamfering radius is 0.5mm.
4. packing ring according to claim 1, is characterized in that, the outer seamed edge of the described packing ring (1) at described little endoporus (12) place has chamfering.
5. packing ring according to claim 1, is characterized in that, described large endoporus (11) and little endoporus (12) are inner coaxial and seal and be provided with rubber ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520136064.4U CN204493407U (en) | 2015-03-09 | 2015-03-09 | A kind of packing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520136064.4U CN204493407U (en) | 2015-03-09 | 2015-03-09 | A kind of packing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204493407U true CN204493407U (en) | 2015-07-22 |
Family
ID=53572728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520136064.4U Active CN204493407U (en) | 2015-03-09 | 2015-03-09 | A kind of packing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204493407U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730315A (en) * | 2018-05-15 | 2018-11-02 | 中国铁道科学研究院铁道建筑研究所 | A kind of washer, high strength bolt connection pairs and its production technology using the washer |
-
2015
- 2015-03-09 CN CN201520136064.4U patent/CN204493407U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730315A (en) * | 2018-05-15 | 2018-11-02 | 中国铁道科学研究院铁道建筑研究所 | A kind of washer, high strength bolt connection pairs and its production technology using the washer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |