CN111194147A - Steel-carbon fiber composite material explosion-proof shell structure - Google Patents
Steel-carbon fiber composite material explosion-proof shell structure Download PDFInfo
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- CN111194147A CN111194147A CN202010149499.8A CN202010149499A CN111194147A CN 111194147 A CN111194147 A CN 111194147A CN 202010149499 A CN202010149499 A CN 202010149499A CN 111194147 A CN111194147 A CN 111194147A
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- carbon fiber
- fiber composite
- composite material
- steel
- positioning pin
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
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Abstract
The invention discloses a steel-carbon fiber composite material explosion-proof shell structure which comprises a carbon fiber composite material shell, wherein a plurality of rectangular holes are formed in the outer surface of the carbon fiber composite material shell, and positioning pin holes and positioning pins are formed in the inner surface and the outer surface of the carbon fiber composite material shell, which are close to the rectangular holes respectively. According to the steel-carbon fiber composite material explosion-proof shell structure, the steel connecting piece and the carbon fiber composite material are connected through the bolt, the steel-carbon fiber composite material explosion-proof shell structure is through-thickness connection, can resist stripping stress and splitting stress, is convenient to inspect quality and ensure the reliability of connection, can be repeatedly assembled and disassembled in manufacturing, replacing and maintaining, has low requirements on preparation and treatment of the connecting surface of a part, has no residual stress generated by glue joint solidification, is less influenced by environment, has no thickness limitation, and can ensure the positioning precision of the part, prevent fine vibration of a steel structural part and ensure the locking strength by adopting the structure of the positioning pin.
Description
Technical Field
The invention relates to the technical field of flameproof housings, in particular to a steel-carbon fiber composite material flameproof housing structure.
Background
At present, the most applied composite material structure connection for transferring load is glue joint, and the defects thereof are as follows: firstly, a reliable nondestructive detection method is lacked, the glue joint quality is difficult to control, the reliability is poor, the glue joint strength has high dispersity and low peel strength, and large load is difficult to transfer; secondly, the cementing property is greatly influenced by the environment such as humidity, heat, corrosive medium and the like, and has certain aging problem, the cementing surface needs special surface treatment before cementing, the process requirement is strict, the matched tolerance between the cemented parts is strict, a heating and pressurizing curing device is needed, the repair is difficult, the cementing is a permanent link, the cementing cannot be disassembled, the material is difficult to recycle, and the cementing of a thicker structure and the transfer of a large load are difficult;
the housing of the flameproof electrical equipment must have sufficient mechanical strength, can bear the explosion pressure generated when the interior of the housing explodes, and cannot be seriously deformed or damaged, for example, electrical equipment for coal mining working faces and electrical equipment for non-mining working faces are specified to be made of steel plates or cast steel, and at least, the housing needs to be made of gray cast iron with a mark of more than HT250, and simultaneously, the housing needs to meet the requirements of GB3836.1 part 1 of explosive environment: general requirements for equipment and GB3836.2 section 2 of explosive environment: the relevant standard requirements and experimental requirements of equipment protected by a flameproof housing'd' are provided, and therefore a steel-carbon fiber composite material flameproof housing structure is provided.
Disclosure of Invention
The invention mainly aims to provide a steel-carbon fiber composite material explosion-proof shell structure which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
a steel-carbon fiber composite material explosion-proof shell structure comprises a carbon fiber composite material shell, a plurality of rectangular holes are arranged on the outer surface of the carbon fiber composite material shell in a penetrating way, and a positioning pin hole and a positioning pin for fixing a steel connecting piece are respectively arranged on the inner surface and the outer surface of the carbon fiber composite material shell, which are close to the edge of the rectangular holes, wherein,
the steel connecting piece comprises a steel structural piece which is arranged on the outer surface of the carbon fiber composite material shell and close to the edge of the rectangular hole, and is used for connecting functional parts of the carbon fiber composite material shell, and an internal steel fixing piece which is arranged on the inner surface of the carbon fiber composite material shell and close to the edge of the rectangular hole, and is used for being connected with the steel structural piece.
Preferably, a plurality of through holes are formed in the outer surface of the carbon fiber composite material shell close to the edges of the rectangular holes, and the inner surface of the inner steel fixing piece penetrates through the through holes through bolts to be connected with the inner side surface of the steel structural piece.
Preferably, the inner side surface of the steel structural member is provided with a positioning pin groove, and the positioning pin is arranged on the inner surface of the positioning pin groove.
Preferably, a positioning pin hole is formed in the position, close to the positioning pin, of the outer surface of the carbon fiber composite material shell.
Compared with the prior art, the invention has the following beneficial effects:
the invention adopts a mechanical connection mode, connects the connecting mechanism and the carbon fiber composite material through the bolt, is a connection penetrating through the thickness, has the advantages of strong anti-stripping stress and splitting stress, convenient quality inspection and connection reliability guarantee, can be repeatedly assembled and disassembled in manufacturing, replacing and maintaining, has low requirements on preparation and treatment of the connecting surface of a part, has no residual stress generated by glue joint curing, is less influenced by the environment and has no thickness limitation; in addition, the structure is firmer by adopting an internal and external locking mode, the positioning precision of parts can be ensured by adopting the structure of the positioning pin, the slight vibration of a steel structural part is prevented, and the locking strength is ensured.
The mechanical connection structure of the steel structure member and the carbon fiber composite material can reduce the production process of the carbon fiber composite material, only the processing and manufacturing of the carbon fiber composite material are needed to be considered, the glue joint surface is not needed to be designed independently like a glue joint connection mode, the manufacturing difficulty of a mold is increased, meanwhile, the carbon fiber composite material is good in integrity and uniform in thickness, the glue joint connection is adopted, the thickness needs to be locally reduced so as to achieve the positioning and glue storage of the steel structure member, and the strength of the local carbon fiber composite material can be reduced.
Drawings
FIG. 1 is a front view of a steel-carbon fiber composite material flameproof housing structure of the present invention;
FIG. 2 is a top view of a steel-carbon fiber composite material flameproof housing structure of the present invention;
FIG. 3 is a partial cross-sectional view of a composite shell in a steel-carbon fiber composite material flameproof shell structure according to the present invention;
FIG. 4 is an explosion diagram of a steel-carbon fiber composite material explosion-proof enclosure structure of the invention.
In the figure: 1. a carbon fiber composite shell; 2. a steel structural member; 3. an inner steel fixture; 4. and a positioning pin.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1-3, a steel-carbon fiber composite explosion-proof shell structure comprises a carbon fiber composite shell 1, a plurality of rectangular holes are formed in the outer surface of the carbon fiber composite shell 1 in a penetrating manner, and a positioning pin hole and a positioning pin 4 for fixing a steel connecting piece are respectively arranged on the inner surface and the outer surface of the carbon fiber composite shell 1, which are close to the edges of the rectangular holes, wherein,
the steel connecting piece comprises a steel structural piece 2 which is arranged on the outer surface of the carbon fiber composite material shell 1 and close to the edge of the rectangular hole and is used for connecting functional parts of the carbon fiber composite material shell 1, and an internal steel fixing piece 3 which is arranged on the inner surface of the carbon fiber composite material shell 1 and close to the edge of the rectangular hole and is used for being connected with the steel structural piece 2.
Referring to fig. 4, a plurality of through holes are formed in the outer surface of the carbon fiber composite material shell 1 near the edges of the rectangular holes, and the inner surface of the inner steel fixing member 3 penetrates through the through holes through bolts to be connected with the inner side surface of the steel structural member 2.
Referring to fig. 3, a positioning pin groove is formed on the inner side surface of the steel structural member 2, and the positioning pin 4 is installed on the inner surface of the positioning pin groove.
Referring to fig. 3, a positioning pin hole is formed in the outer surface of the carbon fiber composite material shell 1 at a position close to the positioning pin 4.
When the carbon fiber composite material shell is used, the positioning pin 4 is inserted into the positioning pin groove at the rear end of the steel structural member 2, the steel structural member 2 is covered on the rectangular hole on the outer surface of the carbon fiber composite material shell 1, the positioning pin 4 at the rear end of the steel structural member 2 is inserted into the positioning pin hole on the surface of the carbon fiber composite material shell 1, the bolt groove at the rear end of the steel structural member 2 corresponds to the through hole on the outer surface of the carbon fiber composite material shell 1, the inner steel fixing member 3 is placed into the carbon fiber composite material shell 1, the inner steel fixing member 3 is attached to the edge of the rectangular hole, the bolt penetrates through the inner steel fixing member 3 and the outer surface of the carbon fiber composite material shell 1 and is inserted into the bolt groove at the rear end of the steel structural member 2, and the distance between the steel structural member 2 and the inner steel fixing member, and respectively attached to the inner surface and the outer surface of the carbon fiber composite material shell 1, and the connection of the carbon fiber composite material shell 1 and the connecting mechanism is completed at the same time, wherein the steel structural member is a steel structural member 2 and an internal steel fixing member 3.
Through steel structure spare-carbon-fibre composite's mechanical connection structure, can reduce carbon-fibre composite's production technology, only need consider the processing preparation of carbon-fibre composite itself, need not like the cementing connection mode need will glue the face and design alone out, increased the preparation degree of difficulty of mould, simultaneously, carbon-fibre composite's wholeness is good, and thickness is even, adopts the cementing connection, needs the local location that reduces thickness in order to reach steel structure spare and deposit gluey, can reduce local carbon-fibre composite intensity like this.
The carbon fiber composite material used for the carbon fiber composite material shell 1 comprises the following steps during manufacturing:
(1) laying layer by layer: firstly, laying a layer of carbon fiber on the surface of a mould, then laying a layer of glass fiber on the carbon fiber, and sequentially and alternately laying;
(2) vacuum infusion: and (3) after the laying in the step (1), covering a vacuum bag on the mold, vacuumizing and filling the interior of the mold, and obtaining the carbon fiber composite board after vacuum filling.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The steel-carbon fiber composite material explosion-proof shell structure is characterized by comprising a carbon fiber composite material shell (1), wherein a plurality of rectangular holes are formed in the outer surface of the carbon fiber composite material shell (1) in a penetrating mode, positioning pin holes and positioning pins (4) used for fixing steel connecting pieces are arranged on the inner surface and the outer surface of the carbon fiber composite material shell (1) respectively close to the edges of the rectangular holes, wherein,
the steel connecting piece comprises a steel structural piece (2) which is arranged on the outer surface of the carbon fiber composite material shell (1) and close to the edge of the rectangular hole, and is used for connecting functional parts of the carbon fiber composite material shell (1), and an internal steel fixing piece (3) which is arranged on the inner surface of the carbon fiber composite material shell (1) and close to the edge of the rectangular hole, and is used for being connected with the steel structural piece (2).
2. The steel-carbon fiber composite explosion-proof shell structure of claim 1, characterized in that: a plurality of through holes are formed in the edge, close to the rectangular hole, of the outer surface of the carbon fiber composite material shell (1), and the inner surface of the inner steel fixing piece (3) penetrates through the through holes through bolts to be connected with the inner side surface of the steel structural piece (2).
3. The steel-carbon fiber composite explosion-proof shell structure of claim 1, characterized in that: the inner side surface of the steel structural member (2) is provided with a positioning pin groove, and the positioning pin (4) is arranged on the inner surface of the positioning pin groove.
4. The steel-carbon fiber composite explosion-proof shell structure of claim 1, characterized in that: and a positioning pin hole is formed in the position, close to the positioning pin (4), of the outer surface of the carbon fiber composite material shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010149499.8A CN111194147A (en) | 2020-03-06 | 2020-03-06 | Steel-carbon fiber composite material explosion-proof shell structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010149499.8A CN111194147A (en) | 2020-03-06 | 2020-03-06 | Steel-carbon fiber composite material explosion-proof shell structure |
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| CN111194147A true CN111194147A (en) | 2020-05-22 |
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| CN202010149499.8A Withdrawn CN111194147A (en) | 2020-03-06 | 2020-03-06 | Steel-carbon fiber composite material explosion-proof shell structure |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1873236A (en) * | 2006-05-26 | 2006-12-06 | 中国舰船研究设计中心 | Bonded structure between shell plate made from fibrous composite material and hardware |
| CN201440766U (en) * | 2008-12-09 | 2010-04-21 | 北京蛙视通信技术有限责任公司 | Optical transceiver shell |
| US20130135841A1 (en) * | 2011-11-30 | 2013-05-30 | Lear Corporation | Charger assembly and electromagnetic interference shield assembly |
| CN103448260A (en) * | 2013-08-27 | 2013-12-18 | 中国船舶重工集团公司第七二五研究所 | Connecting method of shell plate made from composites and metal member |
| CN105666892A (en) * | 2016-01-25 | 2016-06-15 | 浙江大学 | Method for manufacturing automobile body through carbon fiber composite |
| CN206907826U (en) * | 2017-07-03 | 2018-01-19 | 江西安驰新能源科技有限公司 | A kind of split type carbon fiber Battery case |
| CN207345181U (en) * | 2017-11-02 | 2018-05-11 | 广州韵芝新型材料有限公司 | A kind of carbon fiber reinforced metal composite plate |
| CN109973475A (en) * | 2019-04-28 | 2019-07-05 | 杭州友凯船艇有限公司 | A kind of two-sided connection combination apparatus |
-
2020
- 2020-03-06 CN CN202010149499.8A patent/CN111194147A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1873236A (en) * | 2006-05-26 | 2006-12-06 | 中国舰船研究设计中心 | Bonded structure between shell plate made from fibrous composite material and hardware |
| CN201440766U (en) * | 2008-12-09 | 2010-04-21 | 北京蛙视通信技术有限责任公司 | Optical transceiver shell |
| US20130135841A1 (en) * | 2011-11-30 | 2013-05-30 | Lear Corporation | Charger assembly and electromagnetic interference shield assembly |
| CN103448260A (en) * | 2013-08-27 | 2013-12-18 | 中国船舶重工集团公司第七二五研究所 | Connecting method of shell plate made from composites and metal member |
| CN105666892A (en) * | 2016-01-25 | 2016-06-15 | 浙江大学 | Method for manufacturing automobile body through carbon fiber composite |
| CN206907826U (en) * | 2017-07-03 | 2018-01-19 | 江西安驰新能源科技有限公司 | A kind of split type carbon fiber Battery case |
| CN207345181U (en) * | 2017-11-02 | 2018-05-11 | 广州韵芝新型材料有限公司 | A kind of carbon fiber reinforced metal composite plate |
| CN109973475A (en) * | 2019-04-28 | 2019-07-05 | 杭州友凯船艇有限公司 | A kind of two-sided connection combination apparatus |
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Application publication date: 20200522 |
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| WW01 | Invention patent application withdrawn after publication |