CN108819297A - The integrated curing method of 3 D weaving tubulose preform and end-fitting - Google Patents

The integrated curing method of 3 D weaving tubulose preform and end-fitting Download PDF

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Publication number
CN108819297A
CN108819297A CN201810395398.1A CN201810395398A CN108819297A CN 108819297 A CN108819297 A CN 108819297A CN 201810395398 A CN201810395398 A CN 201810395398A CN 108819297 A CN108819297 A CN 108819297A
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fitting
weaving
preform
column
composite
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CN201810395398.1A
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CN108819297B (en
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刘念
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刘念
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/74Moulding material on a relatively small portion of the preformed part, e.g. outsert moulding

Abstract

The present invention provides the integrated curing method of a kind of 3 D weaving tubulose preform and end-fitting, includes the following steps:One, integrally extend one section of connecting column in the inner end of end-fitting;Two, using the connecting column of end-fitting as core model, 3 D weaving tubulose preform is gone out with 3 D weaving craft woven in the lateral surface of the connecting column;Three, end-fitting is put into mold together with 3 D weaving tubulose preform, and be structure as a whole through composite material process planning solidification.Composite material integrally cured jointing is made using the method for the present invention, it is convenient that the jointing with labyrinth is produced in batches, the high bearing capacity for the composite material tube that other techniques are difficult to realize can also be reached, it is used to can be convenient make the high-performance composite materials structural member for bearing the load such as stretching, compression, bending, torsion, such as pull rod, strut, torsion bar, beam, transmission shaft.

Description

The integrated curing method of 3 D weaving tubulose preform and end-fitting
Technical field
The present invention relates to the integrated curing methods of a kind of 3 D weaving tubulose preform and end-fitting.
Background technique
It usually requires the integral composite material of process combinations such as to pass through gluing, be spirally connected, rivet between composite material structural member Structure.Up to the present, composite material structural member, especially pull rod, strut, torsion bar, beam, transmission shaft etc. usually will first add respectively Then work composite material tube and matched connector carry out splicing or the glue spiral shell, bond-riveted joint of connector and composite material tube again, Finally obtain corresponding composite material structural member.Solidify altogether there are also metal embedded part and composite product in practical application The technique of splicing occurs, but can not often undertake bigger load, therefore how to make the height that can give full play to composite material The hot spot that the cylinder structure part of bearing capacity is always paid close attention in the industry.General Study thinks, is glued and only has the glue-line on interface to pass Load is passed, and the shear strength of glue-line and stress non-uniform Distribution are to limit the principal element of pipe fitting bearing capacity.Glue spiral shell, glue riveting Connection effect be substantially better than it is simple being spirally connected and riveting, but its carrying limit be generally not more than splicing.
D braided composites are due to its special fibrous inner structure, thus it is excellent to be provided with some unique performances Gesture, such as designability it is stronger, without interlaminar failure form, shock resistance, resistant to damage, high fatigue life, handed over especially suitable for bearing The load such as change, shock and vibration, thermal shock, high thermal gradient provide space for the expansion application of composite material, can be more The advantage of ground performance composite material.
The excellent mechanical property of D braided composites is also brought centainly to designing and manufacturing for its connection structure Obstacle.Such as:In top load load-carrying member, if using the structural member with connector of whole 3 D weaving, although property Can advantage it is prominent, but a series of problems such as cost increases severely, long in time limit, production efficiency is low would generally be brought, influence the material and its The application of structure.It can solve the above problem with metal or other materials production connector for joint, but how to connect is still to need Solve the problems, such as, if still with traditional splicing, be spirally connected, rivet or the techniques such as glue spiral shell, glue riveting, other than original problem, It is also possible to bringing internal fiber structural damage, defect and damage are caused, and increase subsequent Joining Technology difficulty and cost Deng.
Summary of the invention
It is an object of the invention to:The integrated solidification side of a kind of 3 D weaving tubulose preform and end-fitting is provided Method solves the above-mentioned technical problems in the prior art.
To achieve the above object, the technical solution adopted by the present invention is that:
A kind of integrated curing method of 3 D weaving tubulose preform and end-fitting, it is characterized in that including following step Suddenly:
One, end-fitting at least consists of two parts, and a part is connected with 3 D weaving tubulose preform by interior The connecting column that side is integrally extended, another part are the outer linkage sections with other structures connection;
Two, with the connecting column of end-fitting as a part of core model, the core model lateral surface with 3 D weaving work Skill knits out 3 D weaving tubulose preform;
Three, end-fitting is put into mold together with 3 D weaving tubulose preform, and through composite molding work Skill solidification is structure as a whole.
The integrated curing method of the 3 D weaving tubulose preform and end-fitting, wherein:The end-fitting is adopted It is made of metal, ceramics, high molecular material or composite material.
The integrated curing method of the 3 D weaving tubulose preform and end-fitting, wherein:The end-fitting is logical The technique of over mechanical processing, molding, punching press, injection molding, compound, 3D printing or sintering is made.
The integrated curing method of the 3 D weaving tubulose preform and end-fitting, wherein:The end-fitting Outer linkage section is monaural piece, ears piece, universal-joint fork ear, hollow pipe, solid post, flange, external thread rod or internal thread hole.
The integrated curing method of the 3 D weaving tubulose preform and end-fitting, wherein:The end-fitting The cross sectional shape of connecting column is solid or hollow round, rectangular or other geometries.
The integrated curing method of the 3 D weaving tubulose preform and end-fitting, wherein:Outside the connecting column Surface is prismatic or variable cross-section, such as single taper, double tapered, more tapers or arc.
The integrated curing method of the 3 D weaving tubulose preform and end-fitting, wherein:Outside the connecting column Concaveconvex structure is formed on surface.
The integrated curing method of the 3 D weaving tubulose preform and end-fitting, wherein:The concaveconvex structure is Screw thread, spine, barb, salient point, annular groove and/or longitudinal slot.
The integrated curing method of the 3 D weaving tubulose preform and end-fitting, wherein:The three-dimensional volume It knits and connects outside the inner face and the connecting column of tubular pre-form or the 3 D weaving tubulose preform Outside connects with the inner face of connecting column.
The integrated curing method of the 3 D weaving tubulose preform and end-fitting, wherein:In three-dimensional woven tube The outside of the section that shape preform connects with connecting column wind carried out after high performance fiber filament or strap again composite material at The solidification of type technique is structure as a whole.
The integrated curing method of the 3 D weaving tubulose preform and end-fitting, wherein:The composite material Moulding process is composite liquid moulding process or composite material gas-phase deposition or composite material liquid deposition technique.
Compared with prior art, the invention has the advantages that:Composite material one is made using the method for the present invention The cured jointing of body, it is convenient that the jointing with labyrinth is produced in batches, moreover it is possible to reach other techniques hardly possible With the high bearing capacity of realization, it is used to can be convenient make and bears the various loadings such as stretching, compression, bending, torsion High-performance composite materials structural member, such as pull rod, strut, torsion bar, beam, transmission shaft.
Detailed description of the invention
Fig. 1 is the integrated consolidated structures that rod head utilizes the method for the present invention and 3 D weaving tubulose preform;
Fig. 2 is the cross-sectional view of Fig. 1;
Fig. 3 is the integrated consolidated structures that flange utilizes the method for the present invention and 3 D weaving tubulose preform;
Fig. 4 is the cross-sectional view of Fig. 3.
Description of symbols:Rod head 1;Connecting column 11;External labyrinth section 12;3 D weaving tubulose preform 2;Flange 3;Connecting column 31;Concaveconvex structure 311;External labyrinth section 32.
Specific embodiment
The present invention provides the integrated curing method of a kind of 3 D weaving tubulose preform and end-fitting, including walks as follows Suddenly:
One, integrally extend one section of connecting column in the inner end of end-fitting;
Two, using the connecting column of end-fitting as a part of core model, the core model lateral surface with 3 D weaving technique Knit out 3 D weaving tubulose preform;
Three, end-fitting is put into mold together with 3 D weaving tubulose preform, and through composite molding work Skill solidification is structure as a whole.
Main improvement of the invention is, end-fitting is divided into positioned at the external labyrinth section of outboard end and positioned at interior The connecting column of side, and end-fitting can be made of metal, ceramics, high molecular material or composite material, therefore can be passed through The techniques such as original machining, molding, punching press, injection molding, compound, 3D printing or sintering produce quickly, in bulk, and Connecting column is then conducive to securely connect and transmit load with D braided composites pipe, and is easy to reach batch production, while again Possess the performance advantage of composite material structural member.
It should be added that using the method for the present invention, it can be Step 1: Step 2: the either step of step 3 Before or after come complete end-fitting external labyrinth section forming step.
It as shown in Figure 1 and Figure 2, is that rod head is solid using the method for the present invention and the one of 3 D weaving tubulose preform 2 Change structural schematic diagram, the rod head 1 is the taper swivel nut with internal thread hole, and wherein internal thread hole is constituted described external multiple Miscellaneous structural sections 12, and taper swivel nut outer surface then constitutes the connecting column 11,3 D weaving tubulose preform 2 is woven in described On the outer surface of taper swivel nut, and the pull rod being structure as a whole is solidified by composite material process planning, when being used for structural member, first Flake screw is screwed in internal thread hole, adjustment length is simultaneously fixed, then is connected by flake screw with other structures.
Wherein:Since the taper swivel nut is made of metal and has the outer ring surface that side is thicker inwardly, can increase Tensile capacity between strong taper swivel nut and 3 D weaving tubulose preform 2.
It again as shown in Figure 3, Figure 4, is that flange is solidified using the one of the method for the present invention and 3 D weaving tubulose preform 2 Structural schematic diagram, the flange 3 include the flange plate and flanged pipe of integrally connected, and the flange plate is located at outboard end and constitutes institute External labyrinth section 32 is stated, and flanged pipe then constitutes the connecting column 31,3 D weaving tubulose preform 2 is woven in by institute It states on the core model of outer surface composition of flanged pipe, and is structure as a whole by composite material process planning solidification.
Wherein:Formed on the outer ring surface of the flanged pipe concaveconvex structure 311 (can be screw thread, spine, barb, salient point, Annular groove and/or longitudinal slot), the combination and transmitting load between flanged pipe and 3 D weaving tubulose preform 2 can be enhanced Ability.
The above is only illustrating application mode of the invention by taking the conventional components such as rod head 1, flange as an example, but it is of the invention Application field is not limited thereto.
In above embodiments:
The end-fitting can be made up of the technique of machining, molding, punching press, injection molding, compound, 3D printing or sintering.
The outer linkage section of the end-fitting can be monaural piece, ears piece, universal-joint fork ear, hollow pipe, solid post, method Blue, external thread rod or internal thread hole.
The cross sectional shape of the connecting column 31 of the end-fitting can be that solid or hollow round, rectangular or other are several What shape.
The outer surface of the connecting column 31 can be prismatic or variable cross-section, such as single taper, double tapered, more tapers or arc Shape.
The inner face of the 3 D weaving tubulose preform 2 connects or described with the outside of the connecting column 31 The outside of 3 D weaving tubulose preform 2 connect with the inner face of connecting column 31, all may be used.
High performance fibre can also be wound in the outside for the section that 3 D weaving tubulose preform 2 connects with connecting column 31 Composite material process planning solidification is carried out after dimension silk or strap again to be structure as a whole.
Above-mentioned composite material process planning is generally most commonly seen with composite liquid moulding process, but those skilled in the art Member can also further develop the integrated curing method of the others in addition to liquid molding process, such as gas-phase deposition, liquid Phase depositing operation etc..
Integrated curing method in the present invention for 3 D weaving tubulose preform and end-fitting is equally applicable to it The 3 D weaving preform of his form, such as the one solidification of plate, profile and end-fitting.

Claims (11)

1. the integrated curing method of a kind of 3 D weaving tubulose preform and end-fitting, it is characterized in that including the following steps:
One, end-fitting at least consists of two parts, and a part is connected with 3 D weaving tubulose preform by inner end The connecting column integrally extended, another part are the outer linkage sections with other structures connection;
Two, it is compiled with the connecting column of end-fitting as a part of core model in the lateral surface of the core model with 3 D weaving technique Weave 3 D weaving tubulose preform;
Three, end-fitting is put into mold together with 3 D weaving tubulose preform, and solid through composite material process planning Turn to integral structure.
2. the integrated curing method of 3 D weaving tubulose preform according to claim 1 and end-fitting, feature It is:The end-fitting is made of metal, ceramics, high molecular material or composite material.
3. the integrated curing method of 3 D weaving tubulose preform according to claim 1 and end-fitting, feature It is:The end-fitting is made up of the technique of machining, molding, punching press, injection molding, compound, 3D printing or sintering.
4. the integrated curing method of 3 D weaving tubulose preform according to claim 1 and end-fitting, feature It is:The outer linkage section of the end-fitting is monaural piece, ears piece, universal-joint fork ear, hollow pipe, solid post, flange, external screw thread Bar or internal thread hole.
5. the integrated curing method of 3 D weaving tubulose preform according to claim 1 and end-fitting, feature It is:The cross sectional shape of the connecting column of the end-fitting is solid or hollow round, rectangular or other geometries.
6. the integrated curing method of 3 D weaving tubulose preform according to claim 1 and end-fitting, feature It is:The outer surface of the connecting column is prismatic or variable cross-section, such as single taper, double tapered, more tapers or arc.
7. the integrated curing method of 3 D weaving tubulose preform according to claim 1 and end-fitting, feature It is:Concaveconvex structure is formed on the outer surface of the connecting column.
8. the integrated curing method of 3 D weaving tubulose preform according to claim 7 and end-fitting, feature It is:The concaveconvex structure is screw thread, spine, barb, salient point, annular groove and/or longitudinal slot.
9. the integrated curing method of 3 D weaving tubulose preform and end-fitting according to claim 1 or 8, special Sign is:Connect outside the inner face and the connecting column of the 3 D weaving tubulose preform or described three The outside of dimension woven tubular preform connects with the inner face of connecting column.
10. the integrated curing method of 3 D weaving tubulose preform and end-fitting according to claim 1 or 8, It is characterized in that:High performance fiber filament or cloth are wound in the outside for the section that 3 D weaving tubulose preform connects with connecting column Composite material process planning solidification is carried out after band again to be structure as a whole.
11. the integrated curing method of 3 D weaving tubulose preform according to claim 1 and end-fitting, feature It is:The composite material process planning is composite liquid moulding process or composite material gas-phase deposition or composite wood Feed liquid phase depositing operation.
CN201810395398.1A 2018-04-27 2018-04-27 Integrated curing method for three-dimensional braided tubular preform and end joint Active CN108819297B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6350204B1 (en) * 1999-05-11 2002-02-26 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Fiber-reinforced plastic pipe
CN101476666A (en) * 2008-01-04 2009-07-08 斯奈克玛 Composite flange with machined portion
EP2177804A1 (en) * 2008-10-17 2010-04-21 Hutchinson Conduit for space or aircrafts, its production method and the respective aeronautic structure
CN103712049A (en) * 2012-09-28 2014-04-09 张长增 Fiber composite material bearing rod or pipe and forming method thereof
CN104110352A (en) * 2014-06-19 2014-10-22 连云港中复连众复合材料集团有限公司 Method for manufacturing root portion of fan blade with square embedded bolt sleeve
JP2016153671A (en) * 2015-02-20 2016-08-25 東レ株式会社 Propeller shaft
CN106985417A (en) * 2017-04-18 2017-07-28 浙江理工大学 A kind of carbon fiber weaves the interface connecting method of multiple tube

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6350204B1 (en) * 1999-05-11 2002-02-26 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Fiber-reinforced plastic pipe
CN101476666A (en) * 2008-01-04 2009-07-08 斯奈克玛 Composite flange with machined portion
EP2177804A1 (en) * 2008-10-17 2010-04-21 Hutchinson Conduit for space or aircrafts, its production method and the respective aeronautic structure
CN103712049A (en) * 2012-09-28 2014-04-09 张长增 Fiber composite material bearing rod or pipe and forming method thereof
CN104110352A (en) * 2014-06-19 2014-10-22 连云港中复连众复合材料集团有限公司 Method for manufacturing root portion of fan blade with square embedded bolt sleeve
JP2016153671A (en) * 2015-02-20 2016-08-25 東レ株式会社 Propeller shaft
CN106985417A (en) * 2017-04-18 2017-07-28 浙江理工大学 A kind of carbon fiber weaves the interface connecting method of multiple tube

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