CN111268058A - Mechanical connector for cabin section of carbon fiber composite material shell - Google Patents
Mechanical connector for cabin section of carbon fiber composite material shell Download PDFInfo
- Publication number
- CN111268058A CN111268058A CN202010153857.2A CN202010153857A CN111268058A CN 111268058 A CN111268058 A CN 111268058A CN 202010153857 A CN202010153857 A CN 202010153857A CN 111268058 A CN111268058 A CN 111268058A
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- Prior art keywords
- connecting piece
- cabin section
- composite
- mechanical connector
- end part
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B2221/00—Methods and means for joining members or elements
- B63B2221/10—Methods and means for joining members or elements using adhesives
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Abstract
The invention discloses a mechanical connector for a cabin section of a carbon fiber composite shell, which consists of a connector, a waterproof coating, a bonding agent, a sealing ring, a bolt and a composite cabin section piece; coating a waterproof coating on the outer wall of the composite cabin section piece; the mechanical connectors are positioned between the composite cabin pieces; two ends of the mechanical connector are provided with two annular grooves, and the two ends of the mechanical connector are respectively sealed with the end part of the composite material cabin section piece through sealing rings and are bonded and reinforced through a bonding agent. The two connecting parts of the mechanical connector are partially nested and matched; the top and the bottom of the middle part are respectively provided with a screw hole, and the screw holes at the top and the bottom are positioned on the same central line and are fixedly connected through bolts. When the carbon fiber composite cabin section piece is connected with the connector, the continuity and the structural integrity of the composite material fibers of the composite cabin section piece can be ensured. The composite cabin section body is connected with the metal through sealing, bonding and bolts, so that the connection strength and the connection quality of the composite cabin section piece and the metal are improved.
Description
Technical Field
The invention relates to the technical field of application of carbon fiber composite materials, in particular to a mechanical connector for a cabin section of a carbon fiber composite material shell.
Background
The carbon fiber composite material has excellent properties of light weight, high strength and good corrosion resistance, so that the carbon fiber composite material is widely applied to the field of manufacturing of ships and marine equipment. For the carbon fiber composite material shell with larger length, the composite material shell needs to be divided into all cabin sections for segmented manufacturing, and then all the cabin sections are assembled and connected. The prior art generally connects the composite shell sections together using metal. The connection between the cabin section of the composite material shell and the metal generally adopts the modes of mechanical connection, cementation, mixed connection of mechanical connection and cementation, co-curing connection and the like. When the carbon fiber composite material shell cabin section is mechanically connected with metal, the composite material shell needs to be perforated, so that fiber fracture is caused, the mechanical property of the carbon fiber composite material is influenced, and the structural stability and the shell strength are further influenced. The quality of the cementing connection is difficult to control, the cementing strength is high in dispersity, and the reliability is poor. Hybrid junctions cause fiber breakage, adding weight and cost. After co-curing and connection, the in-plane strength of the composite material is reduced, and the performance of the material is influenced.
Disclosure of Invention
In order to avoid the defects in the prior art, the invention provides the mechanical connector for the cabin section of the carbon fiber composite material shell, the connection form of the connector is not required to open a hole on the composite material shell to cause fiber fracture, the structural integrity of the cabin section of the composite material shell can be ensured, and the connection strength and the connection quality of the cabin section of the composite material shell and metal are improved.
The invention solves the technical problem by adopting the technical scheme that the mechanical connector comprises a connector, a waterproof coating, a bonding agent, a sealing ring and a composite cabin section piece, and is characterized in that the mechanical connector is of a cylindrical structure, two axial projecting parts at two end parts are respectively provided with two annular grooves for mounting the sealing ring and are connected and sealed with the end part of the composite cabin section piece, the top and the bottom of the middle part of the mechanical connector are respectively provided with a screw hole, and the central line of the screw hole at the top and the central line of the screw hole at the bottom are positioned on the same straight line; coating a waterproof coating on the outer wall of the composite cabin section piece;
the mechanical connector comprises a first connecting piece, a second connecting piece and a bolt, wherein the width of the right end part of the first connecting piece is matched with the width of the inner side of a boss of the left end part connecting piece of the second connecting piece, the first connecting piece is in nested fit with the second connecting piece, the first connecting piece and the second connecting piece are fixedly connected through the bolt, the outer diameter of the left end part of the first connecting piece and the outer diameter of the right end part of the second connecting piece are smaller than the inner diameter of the composite cabin section, and gaps for filling the adhesive are reserved when the outer diameter of the left end part of the first connecting piece and the outer diameter of the right end part of the second connecting piece are assembled with.
And the assembly gaps between the two end parts of the mechanical connector and the end part of the composite cabin section piece are reinforced by coating 0.5mm of bonding agent.
The mechanical connector outer diameter is the same as the composite cabin segment outer diameter.
The outer diameter of the boss of the connecting piece on the second connecting piece is the same as that of the right end part of the first connecting piece.
Advantageous effects
The invention provides a mechanical connector for a cabin section of a carbon fiber composite shell, which consists of a connector, a waterproof coating, a bonding agent, a sealing ring, a bolt and a composite cabin section piece; coating a waterproof coating on the outer wall of the composite cabin section piece; the mechanical connectors are positioned between the composite cabin pieces; two ends of the mechanical connector are provided with two annular grooves, and the two ends of the mechanical connector are respectively sealed with the composite cabin section ends at the two ends through sealing rings and are bonded and reinforced through adhesives. The top and the bottom of the middle part of the two parts of the mechanical connector are nested and matched and are respectively provided with a screw hole, and the screw holes at the top and the bottom are positioned on the same central line and are fixedly connected through bolts. When the carbon fiber composite cabin section piece is connected with the connector, the continuity and the structural integrity of the composite material fibers of the composite cabin section piece can be ensured. The composite cabin section body is connected with the metal through sealing, bonding and screws, so that the connection strength and the connection quality of the composite cabin section piece and the metal are improved.
Drawings
The following provides a mechanical connector for a carbon fiber composite shell cabin section according to the present invention with reference to the accompanying drawings and embodiments.
FIG. 1 is an isometric view of a carbon fiber composite shell bay section and a metal connector.
Fig. 2 is a schematic structural diagram of a mechanical connector for a carbon fiber composite shell cabin section according to the present invention.
Fig. 3 is an isometric view of a first connector structure of the mechanical connector of the present invention.
Fig. 4a is a schematic view of a first connecting member of the mechanical connector of the present invention.
Fig. 4b is a cross-sectional view of the first connector of the mechanical connector of the present invention.
Fig. 5 is an isometric view of a second link structure of the mechanical connector of the present invention.
Fig. 6a is a schematic view of a second link of the mechanical connector of the present invention.
Fig. 6b is a cross-sectional view of a second link of the mechanical connector of the present invention.
Fig. 7a is a cross-sectional view of a screw.
Fig. 7b is a schematic view of a screw.
Fig. 8 is a cross-sectional view of the seal ring.
In the drawings
1. Composite material cabin section 2, first connecting piece 3, second connecting piece 4, bolt 5, waterproof coating 6, adhesive 7, connector 8, left end part 9 of second connecting piece, right end part 10 of second connecting piece, connecting piece boss 11, left end part 12 of first connecting piece, right end part 13 of first connecting piece and annular groove
Detailed Description
The embodiment is a mechanical connector for a cabin section of a carbon fiber composite material shell.
Referring to fig. 1 to 8, the mechanical connector for the cabin section of the carbon fiber composite material shell in the embodiment is composed of a connector 7, a waterproof coating 5, an adhesive 6, a sealing ring and composite material cabin section pieces 1, wherein the connector 7 is located between the composite material cabin section pieces 1, the mechanical connector 7 is connected with the composite material cabin section pieces 1 at two ends, and the connection form between the end of the mechanical connector 7 and the end of the composite material cabin section pieces 1 is sealing of the sealing ring and bonding of the adhesive 6. The outer diameter of the end of the mechanical connector 7 is smaller than the inner diameter of the end of the composite deck section 1. When the end part of the mechanical connector 7 is assembled with the end part of the composite cabin section piece 1, two annular grooves 13 are respectively processed on the axial protruding parts at the two end parts of the mechanical connector 7 for installing sealing rings for sealing; and a gap is reserved when the end part of the mechanical connector 7 is assembled with the end part of the composite cabin section piece 1, and the assembling gap between the mechanical connector 7 and the composite cabin section piece 1 is reinforced by coating the adhesive 6 with the thickness of 0.5mm so as to finish the assembly. The outer surface of the carbon fiber composite cabin section piece 1 is subjected to waterproof treatment and is coated with a waterproof coating 5.
In this embodiment, the mechanical connector 7 includes a first connector 2, a second connector 3 and a bolt 4, wherein the width of the right end portion 12 of the first connector is identical to the width of the inner side of the boss of the left end portion connector of the second connector, the first connector 2 is in nested fit with the second connector 3, the first connector 2 and the second connector 3 are fixedly connected through the bolt 4, the outer diameter of the left end portion 11 of the first connector and the outer diameter of the right end portion 9 of the second connector are smaller than the inner diameter of the composite cabin segment 1, and a gap for filling a binder is reserved when the outer diameter of the left end portion 11 of the first connector and the outer diameter of the right end portion 9 of the second connector are assembled with the inner diameter of the composite cabin segment 1, and.
The axial projecting part of the left end part 11 of the first connecting piece is provided with two annular grooves 13 for installing sealing rings to realize the sealing with the end part of the composite cabin section piece 1. Screw holes are respectively processed at the top and the bottom of the right end part 12 of the first connecting piece. The outer diameter of the left end 11 of the first connecting piece is smaller than the inner diameter of the composite cabin piece 1, so that a gap filled with an adhesive is reserved during assembly, and the gap is 0.5mm in the embodiment.
When the first connecting piece 2 is assembled with the composite cabin section piece 1, the outer diameter of the left end part 11 of the first connecting piece is smaller than the inner diameter of the composite cabin section piece 1, the first connecting piece 2 and the composite cabin section piece 1 are fixed in advance through a tool clamp, and sealing rings are arranged in two annular grooves 13 of the left end part 11 of the first connecting piece to realize sealing with the end part of the composite cabin section piece 1; finally, the assembly gap between the left end part 11 of the first connecting piece and the end part of the composite cabin piece 1 is filled with the adhesive 6, so that the assembly of the first connecting piece 2 and the composite cabin piece 1 is completed. Two annular grooves 13 are machined in the axial projecting part of the right end part 9 of the second connecting piece for installing sealing rings to seal with the end part of the composite cabin piece 1. The top and the bottom of the left end part 8 of the second connecting piece are respectively provided with a screw hole. The outer diameter of the right end of the second connector is smaller than the inner diameter of the end of the composite deck section 1 so that a gap filled with the adhesive 6 is reserved during assembly, typically a gap of 0.5 mm.
When the second connecting piece 3 is assembled with the composite cabin section piece 1, the outer diameter of the right end part 9 of the second connecting piece of the mechanical connector is smaller than the inner diameter of the end part of the composite cabin section piece 1, the second connecting piece 3 and the composite cabin section piece 1 are fixed in advance through a tooling fixture, and sealing rings are arranged in two annular grooves 13 of the right end part 12 of the first connecting piece to seal the end part of the composite cabin section piece 1; finally, the assembly gap between the right end of the second connecting piece of the mechanical connector and the end of the composite cabin segment 1 is filled with the adhesive 6 to complete the assembly of the second connecting piece 3 and the composite cabin segment 1.
The width of the right end part 12 of the first connecting piece is matched with the width of the inner side of the boss of the left end part of the second connecting piece, the first connecting piece 2 is in nested fit with the second connecting piece 3, and the first connecting piece 2 and the second connecting piece 3 are fixedly connected through a bolt 4. The outer diameter of the connector boss 10 of the second connector left end portion 8 is the same as the outer diameter of the first connector right end portion 12.
When the mechanical connector is installed, the outer diameter of the left end part 11 of the first connecting piece of the mechanical connector is smaller than the outer diameter of the right end part 12 of the first connecting piece, and the left end part 8 of the second connecting piece is processed with an annular groove for installing a sealing ring. In the assembling process of the first connecting piece and the second connecting piece of the mechanical connector, the two ends of the first connecting piece and the two ends of the second connecting piece are fixed in advance through the tool clamp, and the first connecting piece 2 is matched with the second connecting piece 3 in a nested mode, so that the connecting piece boss 10 between the left end portion of the second connecting piece and the right end portion of the second connecting piece just abuts against the right end portion of the first connecting piece. A sealing ring is arranged in the annular groove at the left end 8 of the second connecting piece to realize sealing with the right end part 12 of the first connecting piece; finally, the gap between the right end portion 12 of the first connecting member and the left end portion 8 of the second connecting member is filled with an adhesive 6 and connected by a bolt 4.
Claims (4)
1. A mechanical connector for a cabin section of a carbon fiber composite shell comprises a connector, a waterproof coating, a bonding agent, a sealing ring and a composite cabin section piece, and is characterized in that the mechanical connector is of a cylindrical structure, two axial projecting parts at two ends are respectively provided with two annular grooves for mounting the sealing ring and are connected and sealed with the end part of the composite cabin section piece, the top and the bottom of the middle part of the mechanical connector are respectively provided with a screw hole, and the central line of the screw hole at the top and the central line of the screw hole at the bottom are positioned on the same straight line; coating a waterproof coating on the outer wall of the composite cabin section piece;
the mechanical connector comprises a first connecting piece, a second connecting piece and a bolt, wherein the width of the right end part of the first connecting piece is matched with the width of the inner side of a boss of the left end part connecting piece of the second connecting piece, the first connecting piece is in nested fit with the second connecting piece, the first connecting piece and the second connecting piece are fixedly connected through the bolt, the outer diameter of the left end part of the first connecting piece and the outer diameter of the right end part of the second connecting piece are smaller than the inner diameter of the composite cabin section, and gaps for filling the adhesive are reserved when the outer diameter of the left end part of the first connecting piece and the outer diameter of the right end part of the second connecting piece are assembled with.
2. The mechanical connector for the carbon fiber composite shell cabin section is characterized in that the assembling gaps between the two end parts of the mechanical connector and the end parts of the composite cabin section are reinforced by 0.5mm of adhesive.
3. The carbon fiber composite shell bay section mechanical connector of claim 1, wherein the mechanical connector outer diameter is the same as the composite bay section outer diameter.
4. The mechanical connector for the carbon fiber composite shell cabin section according to claim 1, wherein the outer diameter of the connecting piece boss on the second connecting piece is the same as the outer diameter of the right end part of the first connecting piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010153857.2A CN111268058B (en) | 2020-03-07 | 2020-03-07 | Mechanical connector for cabin section of carbon fiber composite material shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010153857.2A CN111268058B (en) | 2020-03-07 | 2020-03-07 | Mechanical connector for cabin section of carbon fiber composite material shell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111268058A true CN111268058A (en) | 2020-06-12 |
| CN111268058B CN111268058B (en) | 2022-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010153857.2A Active CN111268058B (en) | 2020-03-07 | 2020-03-07 | Mechanical connector for cabin section of carbon fiber composite material shell |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112556982A (en) * | 2020-11-18 | 2021-03-26 | 西北工业大学 | Standard internal measurement section structure of high-speed water inlet test model |
| CN114951735A (en) * | 2022-06-14 | 2022-08-30 | 湖北三江航天红阳机电有限公司 | Machining method of composite cabin section |
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| US20110215569A1 (en) * | 2009-06-08 | 2011-09-08 | Advanced Drilling Solutions Gmbh | Connection between a drill pipe and a connector |
| CN103545674A (en) * | 2012-06-08 | 2014-01-29 | 波音公司 | Conductive coupling assembly |
| CN103759597A (en) * | 2014-01-14 | 2014-04-30 | 北京航空航天大学 | Missile cabin radial monoclinic bushing bolt connection structure |
| CN104769294A (en) * | 2012-09-04 | 2015-07-08 | 哈克弗斯有限公司 | Shaft made of fibre composite material with fireproof bulkhead feedthrough |
| CN105626979A (en) * | 2016-02-05 | 2016-06-01 | 中联重科股份有限公司 | Conveying system, conveying pipe and manufacturing method of conveying pipe |
| CN110778579A (en) * | 2019-11-22 | 2020-02-11 | 西安康本材料有限公司 | Detachable connecting joint of carbon fiber composite pipe and using method thereof |
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2020
- 2020-03-07 CN CN202010153857.2A patent/CN111268058B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110215569A1 (en) * | 2009-06-08 | 2011-09-08 | Advanced Drilling Solutions Gmbh | Connection between a drill pipe and a connector |
| CN103545674A (en) * | 2012-06-08 | 2014-01-29 | 波音公司 | Conductive coupling assembly |
| CN104769294A (en) * | 2012-09-04 | 2015-07-08 | 哈克弗斯有限公司 | Shaft made of fibre composite material with fireproof bulkhead feedthrough |
| CN103759597A (en) * | 2014-01-14 | 2014-04-30 | 北京航空航天大学 | Missile cabin radial monoclinic bushing bolt connection structure |
| CN105626979A (en) * | 2016-02-05 | 2016-06-01 | 中联重科股份有限公司 | Conveying system, conveying pipe and manufacturing method of conveying pipe |
| CN110778579A (en) * | 2019-11-22 | 2020-02-11 | 西安康本材料有限公司 | Detachable connecting joint of carbon fiber composite pipe and using method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112556982A (en) * | 2020-11-18 | 2021-03-26 | 西北工业大学 | Standard internal measurement section structure of high-speed water inlet test model |
| CN114951735A (en) * | 2022-06-14 | 2022-08-30 | 湖北三江航天红阳机电有限公司 | Machining method of composite cabin section |
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| Publication number | Publication date |
|---|---|
| CN111268058B (en) | 2022-03-15 |
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