CN112922947B - Carbon fiber thread bushing and application thereof - Google Patents
Carbon fiber thread bushing and application thereof Download PDFInfo
- Publication number
- CN112922947B CN112922947B CN202110075883.2A CN202110075883A CN112922947B CN 112922947 B CN112922947 B CN 112922947B CN 202110075883 A CN202110075883 A CN 202110075883A CN 112922947 B CN112922947 B CN 112922947B
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- carbon fiber
- thread
- section
- pipe fitting
- bushing
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- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 173
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 173
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 170
- 239000000463 material Substances 0.000 claims abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims 3
- 238000000034 method Methods 0.000 abstract description 22
- 238000010276 construction Methods 0.000 abstract description 9
- 239000002131 composite material Substances 0.000 description 21
- 239000003292 glue Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000005553 drilling Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000011295 pitch Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/42—Moulds or cores; Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B33/00—Features common to bolt and nut
- F16B33/006—Non-metallic fasteners using screw-thread
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B33/00—Features common to bolt and nut
- F16B33/02—Shape of thread; Special thread-forms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/18—Pleated or corrugated hoses
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Joining Of Building Structures In Genera (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
A carbon fiber thread bushing is provided with a limit section and an engaging section along the axial direction, the inner surface and the outer surface of the engaging section are provided with threads, the limiting section is fixed at one end of the meshing section, the appearance of the limiting section is different from the thread of the meshing section, when the meshing section of the carbon fiber threaded sleeve is completely meshed, the limiting section blocks the carbon fiber threaded sleeve from further rotating, the carbon fiber pipe fitting of the invention, the carbon fiber on the pipe wall is tightly embedded with the thread of the formed thread sleeve, thereby the mechanical property of the carbon fiber on the pipe wall can be fully exerted, because the carbon fiber thread sleeve and the carbon fiber pipe fitting both use the same carbon fiber material, the strength consistency of the pipe fitting in the axial direction is good, the weight increase is less, and the thermal expansion coefficients of the materials are consistent, the construction conditions can be greatly simplified, the construction period is shortened, and the method has important significance for the field construction of large truss structures with dozens of meters.
Description
Technical Field
The invention belongs to the technical field of composite materials, and particularly relates to a carbon fiber threaded sleeve and application thereof.
Background
Compared with the traditional steel, the carbon fiber composite material has the advantages of high specific rigidity and specific strength. The carbon fiber composite material is applied to a large astronomical telescope, so that the weight and the driving power consumption of the telescope are reduced, and the natural vibration frequency and the pointing speed of the telescope are improved. In the large truss structure of a large astronomical telescope, the carbon fiber composite material can be applied in the form of a pipe fitting.
The connecting method and the connecting process of the carbon fiber composite material are greatly different from those of the traditional steel. Common connection methods of the carbon fiber composite pipe fitting and the joint include an adhesive connection method, a drilling connection method and a pre-embedded metal method, and a forming threaded connection method is developed in recent years. The gluing method adopts glue to glue and solidify the carbon fiber composite material pieces to be connected, the strength of the glue is generally far lower than that of the carbon fiber composite material, and the glued joint is easy to become a weak link of the whole carbon fiber composite material structure. The drilling connection method is to open a through hole or a screw hole in a machining mode on the carbon fiber composite material piece to be connected, the carbon fiber composite material piece is connected through a fastener from an opening, partial carbon fibers can be cut off by the drilling connection method, and the opening is easy to become a weak link of the whole carbon fiber composite material structure. The embedded metal method is characterized in that a metal part is embedded when a carbon fiber composite material is molded, connecting structures such as threads and flanges are arranged on the metal part, and the carbon fiber composite material is connected through the connecting structures. The forming threaded connection method is a method for forming threads by directly extruding a carbon fiber composite material part during forming and connecting by means of the threads, the processing quality of the formed threads depends on a thread structure and a forming process, the processing difficulty of the formed threads is high at present, the thread quality is not high, and the yield of the carbon fiber composite material pipe fitting is influenced.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a carbon fiber threaded sleeve and application thereof, which can give full play to the performance characteristics of a carbon fiber composite material, improve the yield of carbon fiber composite material pipe fittings, ensure the specific strength and specific rigidity of the whole structure and effectively realize the stable connection of the carbon fiber pipe fittings.
The invention is the research result of the national science foundation youth foundation project research on the influence of anisotropy and creep on the application of carbon fiber composite materials in large telescopes (approval No. 11703057).
The specific technical scheme of the invention is as follows:
the utility model provides a carbon fiber thread bush, has spacing section and meshing section along its axial distribution, the internal surface and the surface of meshing section are setting up the screw thread, the one end at the meshing section is fixed to spacing section, spacing section appearance is inequality with meshing section screw thread, and when the meshing section complete meshing of carbon fiber thread bush, spacing section blocks carbon fiber thread bush further to rotate.
The limiting section is an inclined cylinder, and an included angle is formed between the axis of the inclined cylinder and the axis of the carbon fiber threaded sleeve.
The threads of the meshing section are arc threads, and the minimum radius of the arc is larger than the minimum allowable bending radius of the carbon fiber material.
The thread profiles of the inner surface and the outer surface of the meshing section are the same, the tooth root of the outer surface thread corresponds to the tooth tip of the inner surface thread, and the adjacent tooth tip of the outer surface thread corresponds to the adjacent tooth root of the inner surface thread.
Wherein, still include the mould stiff end, spacing section is connected between meshing section and mould stiff end.
The distance between the tooth tip of the outer surface thread of the carbon fiber thread sleeve meshing section and the tooth root of the inner surface thread is equal to the wall thickness of the carbon fiber pipe fitting.
A carbon fiber threaded sleeve sleeved at the end of a carbon fiber pipe is in threaded connection with a carbon fiber threaded sleeve inscribed at the end of another carbon fiber pipe, and epoxy resin glue is coated on the threaded connection surface and is subjected to cold curing.
The utility model provides a mould of preparation carbon fiber pipe fitting, includes thread bush support piece, first pipe fitting centre form and pipe fitting external mold, the profile of first pipe fitting centre form is unanimous with carbon fiber pipe fitting, the tip of first pipe fitting centre form with carbon fiber thread bush is connected fixedly, thread bush support piece runs through carbon fiber thread bush provides the support for it, and during the compound die, the pipe fitting external mold constitutes the die cavity with carbon fiber thread bush, the cooperation of first pipe fitting centre form.
The utility model provides a mould of preparation carbon fiber pipe fitting, includes second pipe fitting centre form and third pipe fitting centre form, the profile of third pipe fitting centre form is unanimous with carbon fiber pipe fitting, the tip and the carbon fiber thread bush of third pipe fitting centre form are connected fixedly, second pipe fitting centre form runs through the carbon fiber thread bush, the expandable of second pipe fitting centre form, during the compound die, second pipe fitting centre form and carbon fiber thread bush, the cooperation of third pipe fitting centre form die cavity.
Advantageous effects
The carbon fiber of the carbon fiber thread bushing is continuous and is not cut off, so that the mechanical property of the carbon fiber is fully exerted.
According to the carbon fiber pipe fitting, the carbon fibers on the pipe wall are tightly embedded with the threads of the forming threaded sleeve, so that the mechanical property of the carbon fibers on the pipe wall can be fully exerted.
According to the carbon fiber pipe fitting, the same carbon fiber material is used for the carbon fiber thread sleeve and the carbon fiber pipe fitting, so that the pipe fitting is good in axial strength consistency, small in weight increase and consistent in material thermal expansion coefficient.
The carbon fiber pipe fitting and the carbon fiber threaded sleeve are completely and mechanically connected and fixed, and the reliability is high.
The method for connecting the carbon fiber pipe fittings can greatly simplify construction conditions and reduce construction period, and is particularly significant for field construction of large-scale truss structures of dozens of meters.
Drawings
FIG. 1 is a schematic view of a carbon fiber thread bushing of the present invention
FIG. 2 is a schematic view of one embodiment of a carbon fiber tube of the present invention
FIG. 3 is a schematic view of another embodiment of the carbon fiber tube of the present invention
FIG. 4 is a schematic view of one embodiment of a carbon fiber pipe mold of the present invention
FIG. 5 is a schematic view of another embodiment of the carbon fiber pipe mold of the present invention
Detailed Description
As shown in fig. 1, the carbon fiber thread bushing a of the present invention is a hollow cylindrical structure formed by surrounding multiple layers of carbon fiber materials, a limiting section 2 and an engaging section 3 are distributed along the axial direction of the cylindrical structure, continuous threads are arranged on the inner surface and the outer surface of the engaging section 3, the limiting section 2 is fixed at one end of the engaging section 3, the shape of the limiting section 2 is different from the threads of the engaging section 3, and when the engaging section 3 of the carbon fiber thread bushing is completely engaged, the limiting section 2 prevents the carbon fiber thread bushing a from further rotating.
For example, as shown in fig. 1 and fig. 2, a carbon fiber threaded sleeve a and a schematic diagram of an embodiment of the carbon fiber threaded sleeve a applied to a carbon fiber tube B are shown, in the embodiment, the carbon fiber tube B is sleeved outside the carbon fiber threaded sleeve a, and an inner surface of the carbon fiber tube B is embedded with an outer surface of the carbon fiber threaded sleeve a, and as shown in fig. 3, in the embodiment, the carbon fiber threaded sleeve a is sleeved outside the carbon fiber tube B, and an inner surface of the carbon fiber threaded sleeve a is embedded with an outer surface of the carbon fiber tube B, and the carbon fiber threaded sleeve a is fixed on the carbon fiber tube B due to the existence of the limiting section 2. In the two above embodiments, the limiting section 2 is an inclined cylinder, an included angle is formed between the axis of the limiting section 2 and the axis of the meshing section 3, and the inclined cylinder is not rotationally symmetrical on the axis of the meshing section 3, so that the carbon fiber thread bushing a cannot rotate relative to the carbon fiber pipe fitting B, and the carbon fiber thread bushing a cannot axially displace relative to the carbon fiber pipe fitting B due to the existence of the thread connection, so that the connection stability of the carbon fiber thread bushing a and the carbon fiber pipe fitting B is improved.
The connection mode of the carbon fiber threaded sleeve A and the carbon fiber pipe fitting B avoids the problem of strength reduction of an adhesive method and a drilling connection method in the prior art, avoids the problems of obvious weight increase and difference of thermal expansion coefficients caused by metal materials of an embedded metal method, and avoids the problems of high processing difficulty and low thread precision of a formed threaded connection method. According to the connection mode of the carbon fiber threaded sleeve A and the carbon fiber pipe fitting B, the carbon fiber threaded sleeve A and the carbon fiber pipe fitting B are good in coaxiality and are firmly fixed, and the carbon fiber threaded sleeve A and the carbon fiber pipe fitting B are made of the same carbon fiber material, so that the pipe fitting is good in axial strength consistency, small in weight increase and consistent in material thermal expansion coefficient.
It should be noted that, the limiting section 2 may be an oblique cylinder, or may be any shape different from the thread of the engaging section 3, for example, the limiting section 2 is provided with threads, but the thread pitch of the threads is different from the thread pitch of the engaging section 3, and if the carbon fiber thread bushing a is to be rotated, the displacement distance of the limiting section 2 is different from the displacement distance of the engaging section 3 due to the different thread pitches, so that the carbon fiber thread bushing a still cannot be rotated or displaced relative to the carbon fiber pipe B.
By applying the carbon fiber thread bushing A and the application thereof to the carbon fiber pipe fitting B, when the thread form of the meshing section 3 of the carbon fiber thread bushing A in fig. 3 is matched with the thread form of the meshing section 3 of the carbon fiber thread bushing A in fig. 1 and 2, the carbon fiber pipe fitting B in fig. 3 can be in threaded connection with the carbon fiber pipe fitting B in fig. 1 and 2. And (3) coating epoxy resin glue on the meshing surface of the meshing section 3 of the two carbon fiber thread sleeves A and performing cold curing to realize the fixed connection of the two carbon fiber pipe fittings B. The connection mode greatly simplifies the construction conditions, reduces the construction period and is particularly significant for the site construction of large-scale truss structures of dozens of meters.
Preferably, the threads of the meshing section 3 of the carbon fiber threaded sleeve A are circular arc threads, and the minimum radius of the circular arc is larger than the minimum permitted bending radius of the carbon fiber material. So set up, effectively avoid carbon fiber material to break when surging the layer.
Preferably, as shown in fig. 1 to 5, the thread profiles of the inner surface and the outer surface of the engagement section 3 are the same. Further preferably, when the thread profiles of the inner surface and the outer surface of the carbon fiber thread bushing a are the same, the root of the outer surface thread corresponds to the crest of the inner surface thread, and the adjacent crest of the outer surface thread corresponds to the adjacent root of the inner surface thread. Further preferably, the distance between the tooth tip of the outer surface thread and the tooth root of the inner surface thread is equal to the wall thickness of the carbon fiber pipe member B. Through the arrangement, the strength of the carbon fiber threaded sleeve A can be ensured, and the strength of the carbon fiber threaded sleeve A and the strength of the carbon fiber pipe fitting B are consistent in the axial direction.
Wherein preferred, carbon fiber thread bush A still includes mould stiff end 1, spacing section 2 is connected between meshing section 3 and mould stiff end 1. The fixed mould end 1 can obviously have various forms, and in the embodiment shown in fig. 1, the fixed mould end 1 is a straight cylinder coaxial with the engagement section 3. Except that the die fixing end 1 can be used for fixing the die, the die fixing end 1 can also realize the function of limiting the displacement of the carbon fiber thread bush A relative to the carbon fiber pipe fitting B due to the embedment of the carbon fiber thread bush A and the carbon fiber pipe fitting B.
The carbon fiber thread bushing is prepared by the following steps:
1. the mold is designed according to the size and shape of the carbon fiber threaded sleeve and comprises a threaded sleeve inner mold and a threaded sleeve outer mold,
2. winding resin-impregnated bidirectional carbon fiber cloth on the inner thread sleeve mold to form a blank for forming the thread sleeve, then extruding the blank by the outer thread sleeve mold, curing according to the standard curing process of the carbon fiber composite material,
3. and (4) removing the die, and cutting off the end face to obtain the carbon fiber thread sleeve.
The following introduces a mold for preparing a carbon fiber pipe B, which is used for dealing with a situation that the carbon fiber pipe B is sleeved on a carbon fiber threaded sleeve a, as shown in fig. 4, the mold comprises a threaded sleeve support 51, a first pipe inner mold 52 and a pipe outer mold 4, wherein the first pipe inner mold 52 is in a long strip shape and has the same profile as that of a target carbon fiber pipe B, the end of the first pipe inner mold 52 is fixedly connected with the carbon fiber threaded sleeve a, the threaded sleeve support 51 penetrates through the carbon fiber threaded sleeve a and provides support for the carbon fiber threaded sleeve a, the threaded sleeve support 51 and the first pipe inner mold 52 are fixedly connected when the mold is closed, and the threaded sleeve support 51, the first pipe inner mold 52 and the pipe outer mold 4 are matched to form a cavity to prepare the carbon fiber pipe B by extrusion.
By using the mold, the carbon fiber thread bush A is fixed on the first pipe fitting inner mold 52, the thread bush support 51 is used for supporting the carbon fiber thread bush A, carbon fiber cloth impregnated with resin is wound on the carbon fiber thread bush A and the first pipe fitting inner mold 52 to form a blank of the carbon fiber pipe fitting B, then the pipe fitting outer mold 4 is used for squeezing tightly, and curing is carried out according to the standard curing process of the carbon fiber composite material to obtain the target carbon fiber pipe fitting B.
Another mold for preparing a carbon fiber pipe B is introduced below, and is used for dealing with a situation that a carbon fiber thread bushing a is sleeved on the carbon fiber pipe B, as shown in fig. 5, the mold includes a second pipe inner mold 6 and a third pipe inner mold 7, the third pipe inner mold 7 is consistent with the contour of a target carbon fiber pipe B, the end of the third pipe inner mold is fixedly connected with the carbon fiber thread bushing a, the second pipe inner mold 6 penetrates through the carbon fiber thread bushing a, and the second pipe inner mold 6 is expandable. During the use, at first make second pipe fitting centre form 6 inflation to carbon fiber thread bush A approximate size mutually, form carbon fiber pipe fitting B's pipe wall blank on second pipe fitting centre form 6 with impregnated resin's carbon cloth winding, contract second pipe fitting centre form 6 afterwards, the pipe wall blank reduces, and stretch into in the carbon fiber thread bush A that has been fixed by third pipe fitting centre form 7, let second pipe fitting centre form 6 outwards expand and crowd tightly with carbon fiber thread bush A afterwards, make pipe wall blank and carbon fiber thread bush A paste tight gomphosis, later demolish the mould, cut off the terminal surface, can obtain target carbon fiber pipe fitting B.
Claims (6)
1. A carbon fiber thread bushing is characterized in that a limiting section (2) and an engaging section (3) are axially distributed along the carbon fiber thread bushing, threads are arranged on the inner surface and the outer surface of the engaging section (3), the limiting section (2) is fixed at one end of the engaging section (3), the appearance of the limiting section (2) is different from the threads of the engaging section (3), and when the engaging section (3) of the carbon fiber thread bushing is completely engaged, the limiting section (2) blocks the carbon fiber thread bushing from further rotating; the carbon fiber of the carbon fiber thread sleeve is continuous and is not cut off, the thread of the meshing section (3) is an arc thread, and the minimum radius of the arc is larger than the minimum allowable bending radius of the carbon fiber material.
2. The carbon fiber thread bushing according to claim 1, wherein the limiting section (2) is a slanted cylinder, and an axis of the slanted cylinder forms an included angle with an axis of the carbon fiber thread bushing.
3. A carbon fibre thread bushing according to claim 1, characterized in that the thread profiles of the inner and outer surfaces of the engagement section (3) are identical and the root of the outer surface thread corresponds to the crest of the inner surface thread and the adjacent crest of the outer surface thread corresponds to the adjacent root of the inner surface thread.
4. The carbon fiber thread bushing according to claim 1, further comprising a die-fixing end (1), wherein the stopper section (2) is connected between the engaging section (3) and the die-fixing end (1).
5. A carbon fibre tube member wherein a carbon fibre thread sleeve as claimed in any one of claims 1 to 4 is sleeved or inscribed at its ends.
6. Carbon fiber pipe fitting according to claim 5, characterized in that the distance between the crest of the outer surface thread of the carbon fiber thread bushing engaging section (3) and the root of the inner surface thread is equal to the wall thickness of the carbon fiber pipe fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110075883.2A CN112922947B (en) | 2021-01-20 | 2021-01-20 | Carbon fiber thread bushing and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110075883.2A CN112922947B (en) | 2021-01-20 | 2021-01-20 | Carbon fiber thread bushing and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112922947A CN112922947A (en) | 2021-06-08 |
| CN112922947B true CN112922947B (en) | 2022-09-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110075883.2A Active CN112922947B (en) | 2021-01-20 | 2021-01-20 | Carbon fiber thread bushing and application thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116456653B (en) * | 2023-04-24 | 2023-10-24 | 苏州鑫捷顺精密科技股份有限公司 | Electronic device cover plate with embedded screw sleeve |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0516476Y2 (en) * | 1988-07-19 | 1993-04-30 | ||
| DE4000782A1 (en) * | 1990-01-12 | 1991-08-08 | Boellhoff & Co | THREAD INSERT |
| DE102005048088A1 (en) * | 2005-09-30 | 2007-04-05 | Adolf Würth GmbH & Co. KG | Threaded bush for screw in bore, has collar at end of threaded bush and end of collar exhibits outgoing internal threads (3) and bush has external thread which is designed as thread forming thread |
| CN101527395A (en) * | 2008-12-25 | 2009-09-09 | 江苏宇飞电力科技有限公司 | JRLX/T carbon fiber wire splicing sleeve |
| CN101716824A (en) * | 2009-11-13 | 2010-06-02 | 程显军 | Manufacturing technology of oil pipeline made of carbon fibre composite |
| TW201425003A (en) * | 2012-12-27 | 2014-07-01 | Metal Ind Res & Dev Ct | Piping containing fiber reinforced polymer composite interlayer and manufacturing process thereof |
| CN104300473A (en) * | 2013-07-18 | 2015-01-21 | 河南省安耐德电力设备有限公司 | Distribution line wire clamp |
| DE102013215291A1 (en) * | 2013-08-02 | 2015-02-05 | Ims-Verbindungstechnik Gmbh & Co. Kg | Threaded bush for screwing in |
| CN104514572A (en) * | 2013-09-27 | 2015-04-15 | 深圳海川工程科技有限公司 | Rod body connecting device, anchor rod and manufacturing method thereof |
| CN105003525A (en) * | 2015-07-17 | 2015-10-28 | 芜湖市汽车产业技术研究院有限公司 | Integrated metal-composite transmission shaft and forming process thereof |
| CN106182805B (en) * | 2016-09-09 | 2018-03-23 | 西安爱生技术集团公司 | A kind of manufacturing process of the isometrical tubular structure of carbon fibre composite |
| CN109795130B (en) * | 2019-03-10 | 2024-06-04 | 西安爱生技术集团公司 | Forming tool for equal-diameter tubular member made of carbon fiber composite material with large length-diameter ratio |
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2021
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| CN112922947A (en) | 2021-06-08 |
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