CN210423291U - Connecting assembly and connecting structure with same - Google Patents
Connecting assembly and connecting structure with same Download PDFInfo
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- CN210423291U CN210423291U CN201921596183.2U CN201921596183U CN210423291U CN 210423291 U CN210423291 U CN 210423291U CN 201921596183 U CN201921596183 U CN 201921596183U CN 210423291 U CN210423291 U CN 210423291U
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- bolt
- strain isolation
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- hole
- isolation cylinder
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Abstract
The application belongs to coupling assembling design field, concretely relates to coupling assembling, include: a bolt; the nut is in threaded fit connection with the screw of the bolt; and the strain isolation cylinder is sleeved on the screw rod and positioned between the nut and the head of the bolt, and the outer radial direction of the strain isolation cylinder is gradually reduced in the direction far away from the head of the bolt. Furthermore, it relates to a connection structure comprising: a first connected member having a first through hole; a second connected member having a second through hole; in the connecting component, the strain isolation cylinder sequentially penetrates through the first through hole and the second through hole; the first connected piece and the second connected piece are positioned between the heat-proof cap and the heat insulation pad of the connecting assembly and are fastened along the axial direction.
Description
Technical Field
The application belongs to coupling assembling design field, concretely relates to coupling assembling and have its connection structure.
Background
Considering the requirements of heat resistance and weight reduction of an airplane, the surface layer of the airplane is designed into a structural form of a hot skin and a cold framework, the hot skin positioned at the outside is made of a high-temperature titanium alloy material, the cold framework positioned at the inside is made of an aluminum alloy material, the hot skin made of the titanium alloy material and the cold framework made of the aluminum alloy material are tightly connected by a connecting component due to the difference of mechanical properties and thermophysical properties of the titanium alloy material and the aluminum alloy material, and the connecting component is easy to deform and crack and fall off due to the fact that the thermal stress generated at a connecting area has singularity, so that the integrity and the reliability of the surface layer structure of the airplane are affected.
The present application is made in view of the above-mentioned drawbacks of the prior art.
Disclosure of Invention
It is an object of the present application to provide a connection assembly and a connection structure having the same, which overcome or alleviate at least one of the disadvantages of the prior art.
The technical scheme of the application is as follows:
one aspect provides a connection assembly comprising:
a bolt;
the nut is in threaded fit connection with the screw of the bolt;
and the strain isolation cylinder is sleeved on the screw rod and positioned between the nut and the head of the bolt, and the outer radial direction of the strain isolation cylinder is gradually reduced in the direction far away from the head of the bolt.
According to at least one embodiment of the present application, the strain isolation cylinder is made of a strain isolation material.
According to at least one embodiment of the present application, further comprising:
and the heat-proof cap coats the head of the bolt.
According to at least one embodiment of the present application, the edge of the heat shield cap is in sealing contact with the outer wall of the strain isolation cylinder.
According to at least one embodiment of the present application, the thermal cap is made of an insulating material.
According to at least one embodiment of the present application, further comprising:
and the heat insulation pad is sleeved on the screw rod and is positioned between the strain isolation cylinder and the nut.
In accordance with at least one embodiment of the present application, an insulation mat insulation material is manufactured.
Another aspect provides a connection structure, including:
a first connected member having a first through hole;
a second connected member having a second through hole;
in any of the above-mentioned connection assemblies, the strain isolation cylinder of the connection assembly sequentially penetrates through the first through hole and the second through hole; the first connected piece and the second connected piece are positioned between the heat-proof cap and the heat insulation pad of the connecting assembly and are fastened along the axial direction.
According to at least one embodiment of the application, the first connected piece is a hot skin of the airframe surface;
the second connected piece is a cold framework inside the machine body.
Drawings
Fig. 1 is a schematic structural diagram of a connection assembly provided in an embodiment of the present application;
FIG. 2 is a cross-sectional view of a connection provided by an embodiment of the present application;
wherein:
1-a bolt; 2-a nut; 3-a strain cylinder; 4-a heat-proof cap; 5-a heat insulation pad; 6-a first connected piece; 7-second connected piece.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant application and are not limiting of the application. It should be noted that, for convenience of description, only the portions related to the present application are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
It should be noted that in the description of the present application, the terms of direction or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present application, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those skilled in the art as the case may be.
The present application is described in further detail below with reference to fig. 1-2.
One aspect provides a connection assembly comprising:
a bolt 1;
the nut 2 is in threaded fit connection with the screw of the bolt 1;
and the strain isolation cylinder 3 is sleeved on the screw rod and positioned between the nut 2 and the head of the bolt 1, and the outer diameter of the strain isolation cylinder is gradually reduced in the direction away from the head of the bolt 1.
For the connecting assembly disclosed in the above embodiments, it can be understood by those skilled in the art that it can be used for fastening two connected components, and the strain isolation cylinder 3 is disposed on the screw of the bolt 1, and can play a role of strain isolation, so as to effectively counteract the thermal deformation between the connecting structures caused by thermal mismatch between the two connected components; in addition, the direction of the outer radial direction of the designed strain isolation cylinder 3 far away from the head of the bolt 1 is gradually reduced, and the expansion amount in the plane direction of the two connected pieces can be effectively coordinated.
According to at least one embodiment of the present application, the strain isolation cylinder 3 is made of a strain isolation material.
According to at least one embodiment of the present application, further comprising:
and a heat-proof cap 4 covering the head of the bolt 1.
With respect to the connection assembly disclosed in the above embodiments, it will be understood by those skilled in the art that the heat-proof cap 4 is designed to cover the head of the bolt 1, so as to isolate the head of the bolt from the external environment, and to make sealing contact with the surface of the external connected component when the connection assembly fastens and connects two connected components, so as to prevent external heat flow to the inside of the connected components.
According to at least one embodiment of the present application, the edge of the heat shield cap 4 is in sealing contact with the outer wall of the strain isolation cylinder 3.
With respect to the connection assembly disclosed in the above embodiment, it will be understood by those skilled in the art that the edge of the thermal protection cap 4 is in sealing contact with the outer wall of the strain isolation cylinder 3, i.e. the thermal protection cap 4 and the strain isolation cylinder 3 may form a thermal insulation protective layer on the surface of the bolt 1, completely isolating the bolt 1 from the external environment.
According to at least one embodiment of the present application, the thermal cap 4 is made of a heat insulating material.
According to at least one embodiment of the present application, further comprising:
and the heat insulation pad 5 is sleeved on the screw and positioned between the strain isolation cylinder 3 and the nut 2 so as to further prevent external heat from flowing to the inside of the inner connected piece.
In accordance with at least one embodiment of the present application, the insulation mat 5 is made of an insulating material.
Another aspect provides a connection structure, including:
a first connected member 6 having a first through hole formed therein;
a second connected member 7 having a second through hole;
in any of the above-mentioned connection assemblies, the strain isolation cylinder 3 sequentially penetrates through the first through hole and the second through hole; the first connected member 6 and the second connected member 7 are positioned between the heat-proof cap 4 and the heat insulation pad 5 of the connecting assembly and are fastened in the axial direction, and it is understood that the first connected member 6 is an outer connected member and the second connected member 7 is an inner connected member.
According to at least one embodiment of the present application, the first connected piece 6 is a hot skin of the body surface;
the second connected piece 7 is a cold framework inside the machine body.
So far, the technical solutions of the present application have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present application is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the present application, and the technical scheme after the changes or substitutions will fall into the protection scope of the present application.
Claims (9)
1. A connection assembly, comprising:
a bolt (1);
the nut (2) is in threaded fit connection with the screw of the bolt (1);
and the strain isolation cylinder (3) is sleeved on the screw rod and is positioned between the nut (2) and the head of the bolt (1), and the outer diameter of the strain isolation cylinder is gradually reduced in the direction away from the head of the bolt (1).
2. The connection assembly according to claim 1,
the strain isolation cylinder (3) is made of a strain isolation material.
3. The connection assembly according to claim 2,
further comprising:
and the heat-proof cap (4) coats the head of the bolt (1).
4. The connection assembly according to claim 3,
the edge of the heat-proof cap (4) is in sealing contact with the outer wall of the strain isolation cylinder (3).
5. The connection assembly according to claim 3,
the heat-proof cap (4) is made of heat-insulating material.
6. The connection assembly according to claim 1,
further comprising:
and the heat insulation pad (5) is sleeved on the screw and is positioned between the strain isolation cylinder (3) and the nut (2).
7. The connection assembly according to claim 6,
the heat insulation pad (5) is made of heat insulation materials.
8. A connecting structure, characterized by comprising:
a first connected member (6) having a first through hole;
a second connected member (7) having a second through hole;
a connecting assembly according to any one of claims 1 to 7, wherein the strain-isolating cylinder (3) passes through the first through-hole and the second through-hole in this order; the first connected piece (6) and the second connected piece (7) are positioned between the heat-proof cap (4) and the heat insulation pad (5) of the connecting assembly and are fastened along the axial direction.
9. The connection structure according to claim 8,
the first connected piece (6) is a hot skin on the surface of the machine body;
the second connected piece (7) is a cold framework inside the machine body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921596183.2U CN210423291U (en) | 2019-09-24 | 2019-09-24 | Connecting assembly and connecting structure with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921596183.2U CN210423291U (en) | 2019-09-24 | 2019-09-24 | Connecting assembly and connecting structure with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210423291U true CN210423291U (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921596183.2U Active CN210423291U (en) | 2019-09-24 | 2019-09-24 | Connecting assembly and connecting structure with same |
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| CN (1) | CN210423291U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610977A (en) * | 2020-12-22 | 2021-04-06 | 南京市利澜电力节能科技有限公司 | A installation mechanism for installing air preheater gasket |
| CN114674182A (en) * | 2022-03-22 | 2022-06-28 | 星河动力(北京)空间科技有限公司 | Separation shield screw protection structure and preparation device and protection method thereof |
-
2019
- 2019-09-24 CN CN201921596183.2U patent/CN210423291U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610977A (en) * | 2020-12-22 | 2021-04-06 | 南京市利澜电力节能科技有限公司 | A installation mechanism for installing air preheater gasket |
| CN114674182A (en) * | 2022-03-22 | 2022-06-28 | 星河动力(北京)空间科技有限公司 | Separation shield screw protection structure and preparation device and protection method thereof |
| CN114674182B (en) * | 2022-03-22 | 2023-11-14 | 星河动力(北京)空间科技有限公司 | Separation shield screw protection structure, preparation device and protection method thereof |
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