CN107399091B - Special-shaped composite shaft, preparation method and the connection method with metal flange - Google Patents
Special-shaped composite shaft, preparation method and the connection method with metal flange Download PDFInfo
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- CN107399091B CN107399091B CN201710561575.4A CN201710561575A CN107399091B CN 107399091 B CN107399091 B CN 107399091B CN 201710561575 A CN201710561575 A CN 201710561575A CN 107399091 B CN107399091 B CN 107399091B
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- 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
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
-
- 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
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/02—Shafts; Axles
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Ocean & Marine Engineering (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
This disclosure relates to a kind of abnormity composite shaft, preparation method and the connection method with metal flange.The preparation method use can on inflation/deflation mandrel winding prepreg tape then curing molding method, pass through the first inflation mandrel of setting molding and the second inflation mandrel and make to be wound on the mandrel of prepreg tape first in the deflated condition, then squeezes the second inflation mandrel so that prepreg tape is tensioned and fits in the first inflation mandrel surface.This method can prepare raised special-shaped composite shaft, and boss is to be enhanced by the winding of continuous prepreg tape with shaft body, and the composite shaft intensity being prepared is high, performance is good, can connect with metal flange.The metal flange of the disclosure and the connection method of composite shaft pass through the protrusion at special-shaped composite material axis body both ends and metal flange connecting hole carries out grafting, avoiding the connection types such as bolt influences the defect of properties of product, and this method bonding strength height, stabilized structure and anti-twisting property are strong.
Description
Technical field
This disclosure relates to composite shaft preparation technical field, and in particular, to it is a kind of abnormity composite shaft, its preparation
Method and connection method with metal flange.
Background technique
Carbon fibre composite axis mainly uses winding process to manufacture, and to realize the connection with metalwork, need to pacify in end
Fill metal flange.Installing metal flange, there are mainly two types of modes, one is the drilling in carbon fiber axle and then use bolt or riveting
Nail connection, one is before carbon fiber axle curing molding, flange is embedded in carbon fiber preform, is formed after resin solidification
It is whole.
The major defect of two kinds of connection methods: by connection types such as bolts, need to drill in carbon fiber surface, destroy fiber
Continuity, and properties of product are influenced there are stress concentration in tie point position;It is connected by pre-buried mode, carbon fiber and method
It is attached fixation mainly by resin between orchid, anti-twisting property is weaker.
Summary of the invention
First purpose of the disclosure is to provide a kind of special-shaped composite shaft and preparation method thereof, and this method can be prepared
It is raised abnormity composite shaft, the obtained high torsional property of composite shaft intensity is good, can by bulge-structure with
Metal flange connection.
Second purpose of the disclosure is to provide the connection method of a kind of composite shaft and metal flange, this method connection
Intensity height, stabilized structure.
To achieve the goals above, the first aspect of the disclosure provides a kind of method for preparing special-shaped composite shaft, should
Special-shaped composite shaft includes hollow axis body section and end linkage section, the end linkage section include from the hollow axis body section to
Axially extending ontology and radially projecting fixed lobe from the ontology out, the fixed lobe is circumferentially spaced,
This method comprises the following steps: (1) preparing the first inflation core to match in size and geometry with the special-shaped composite shaft
Axis, the first inflation mandrel have the protruding portion to match in size and geometry with the fixed lobe;(2) preparation second is filled
Gaseous core axis, the depressed area formed between the second inflation mandrel and two adjacent fixed lobes is in size and geometry
Match;(3) the first inflation mandrel and multiple second inflation mandrels is made to be assembled into mandrel body, so that described second fills
Gaseous core axis is filled between adjacent two protruding portions of the first inflation mandrel, and all protruding portions and described the
The outer end face of two inflation mandrels is generally on same periphery;(4) the mandrel body surface wrap prepreg tape with formed with
At least one layer of prepreg tape winding layer that the surface layer of the mandrel body matches in size and geometry, obtains preformed member;(5) by institute
It states preformed member to be placed in tooling, the second inflation mandrel exhaust is squeezed and make, so that the second inflation mandrel occupied
Space is released and the prepreg tape winding layer is made to have the geometry to match with the first inflation mandrel surface;(6) will
Preformed member is heating and curing molding, opens the tooling the first inflation mandrel is made be vented and take out described first and inflate mandrel
With the second inflation mandrel, the special-shaped composite shaft is obtained.
Optionally, the both ends of the hollow axis body section all have the end linkage section.
Optionally, the number of the fixed lobe on each end linkage section is 3~9.
Optionally, in step (4), in the mandrel body surface wrap prepreg tape to form 2~8 layers of winding layer.
Optionally, the prepreg tape contains reinforcing fiber and thermosetting resin, and the reinforcing fiber is selected from carbon fiber, virtue
At least one of synthetic fibre fiber, ultra high molecular weight polyethylene fiber, basalt fibre and glass fibre.
Optionally, the thermosetting resin is selected from epoxy resin, phenolic resin, polyimide resin, bismaleimide
One or more of polyimide resin, polyurethane resin and vinylite.
Optionally, it this method comprises: in step (5), squeezes and makes by the radial motion from outside to inside of the sliding block in tooling
The second inflation mandrel exhaust, the number of the sliding block is identical as the second inflation mandrel, the end geometries of sliding block
Match with the second inflation mandrel.
Optionally, the preformed member be heating and curing molding temperature be 120-140 DEG C, curing time 15-30min.
The second aspect of the disclosure provides the special-shaped composite wood being prepared using method described in disclosure first aspect
Expect axis.
The third aspect of the disclosure provides the connection method of a kind of composite shaft and metal flange, the composite shaft
For the special-shaped composite shaft that the second aspect of the disclosure provides, this method comprises: the special-shaped composite shaft is made to pass through institute
State end linkage section and the metal flange grafting.
Through the above technical solutions, the special-shaped composite shaft preparation method of the disclosure, which uses, to twine on inflation/deflation mandrel
Around prepreg tape and then the method for the molding that is heating and curing, formed by the first inflation mandrel and help of setting molding body shape convex
The the second inflation mandrel for playing position makes to be wound on the mandrel of prepreg tape first in the deflated condition, then squeezes the second inflation
Mandrel is so that prepreg tape is tensioned and fits in the first inflation mandrel surface with convex shape.It can be prepared using the above method
Raised abnormity composite shaft, and boss is to be enhanced by the winding of continuous prepreg tape with shaft body, is prepared
Obtained composite shaft intensity is high, performance is good, can be connect by bulge-structure with metal flange.The metal flange of the disclosure
Connection method with composite shaft using above-mentioned special-shaped composite shaft, be arranged by axis body both ends with metal flange hole shape
The protrusion of shape cooperation carries out grafting, avoids the drilling of the connection types such as bolt and destroys fiber continuity, influences lacking for properties of product
It falls into, this method bonding strength height, stabilized structure and anti-twisting property are strong.
Other feature and advantage of the disclosure will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Attached drawing is and to constitute part of specification for providing further understanding of the disclosure, with following tool
Body embodiment is used to explain the disclosure together, but does not constitute the limitation to the disclosure.In the accompanying drawings:
Fig. 1 is the special-shaped composite shaft and gold of a kind of specific embodiment for the special-shaped composite shaft that the disclosure provides
Belong to the installation diagram of flange.
Fig. 2 is a kind of the first inflation of specific embodiment of the method for the special-shaped composite shaft of preparation that the disclosure provides
The schematic diagram for the mandrel body that mandrel and the second inflation mandrel assemble.
Fig. 3 is a kind of gold of specific embodiment of the connection method of the metal flange that the disclosure provides and composite shaft
Belong to flange arrangement schematic diagram.
Fig. 4 is the cunning in a kind of tooling of specific embodiment of method for the special-shaped composite shaft of preparation that the disclosure provides
Block structure schematic diagram.
Fig. 5 is a kind of specific embodiment signal of the metal flange of the prior art and the connection method of composite shaft
Figure.
Description of symbols
1 hollow 2 end linkage section of axis body section
3 fixed lobe, 4 metal flange
5 first inflation mandrels 6 second inflate mandrel
Specific embodiment
It is described in detail below in conjunction with specific embodiment of the attached drawing to the disclosure.It should be understood that this place is retouched
The specific embodiment stated is only used for describing and explaining the disclosure, is not limited to the disclosure.
In the disclosure, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower " typically refers to device and exists
"up" and "down" under normal operating condition." inside and outside " refers to for device profile.
The first aspect of the disclosure provides a kind of method for preparing special-shaped composite shaft, as shown in Figure 1, the abnormity is compound
Material shaft includes hollow axis body section 1 and end linkage section 2, the end linkage section 2 include by the hollow axis body section 1 in the axial direction
The ontology and radially projecting fixed lobe 3 from the ontology extended, the fixed lobe 3 is circumferentially spaced, should
Method includes the following steps: the first inflation mandrel that (1) preparation matches in size and geometry with the special-shaped composite shaft,
The first inflation mandrel has the protruding portion to match in size and geometry with the fixed lobe;(2) the second inflation of preparation
Mandrel, described second inflates the depressed area formed between mandrel and two adjacent fixed lobes phase in size and geometry
Matching;(3) the first inflation mandrel and multiple second inflation mandrels is made to be assembled into mandrel body, so that second inflation
Mandrel is filled between two adjacent protruding portions of the first inflation mandrel, and all protruding portions and described second
The outer end face of inflation mandrel is generally on same periphery;(4) in the mandrel body surface wrap prepreg tape to be formed and institute
At least one layer of prepreg tape winding layer that the surface layer of mandrel body matches in size and geometry is stated, preformed member is obtained;It (5) will be described
Preformed member is placed in tooling, the second inflation mandrel exhaust is squeezed and make, so that the sky that the second inflation mandrel occupies
Between be released and there is the prepreg tape winding layer and the first geometry for matching of inflation mandrel surface;It (6) will be pre-
Molded part is heating and curing after molding, and opening the tooling is vented the first inflation mandrel and takes out the first inflation mandrel
With the second inflation mandrel, the special-shaped composite shaft is obtained.
Special-shaped composite shaft with bulge-structure can be prepared using the above method of the disclosure, and boss with
Shaft body is to be enhanced by the winding of continuous prepreg tape, and the composite shaft intensity being prepared is high, performance is good, can be passed through
Bulge-structure is connect with metal flange.
According to the disclosure, the first inflation mandrel matches in size and geometry with special-shaped composite shaft to be referred to
Composite shaft size and shape is substantially the same first inflation mandrel, the essentially identical shape of size is similar, shape base to abnormity
The different several situations of this same size, it is preferable that the essentially identical size of shape of the first inflation mandrel and special-shaped composite shaft
Difference, more preferable first inflation mandrel and the cavity size and shape of special-shaped composite shaft are substantially the same, with compact dimensions
More accurate special-shaped composite shaft.As shown in Fig. 2, the described second inflation mandrel and two adjacent fixed lobes it
Between the depressed area that is formed match refer to the radial height and axis of the second inflation mandrel 6 and fixed lobe in size and geometry
It is suitable to thickness, and the shape of the second inflation mandrel 6 can make between all adjacent protruding portions of the first inflation mandrel 5
Continuous void-free cylindrical body is capable of forming after being filled with the second inflation mandrel 6." all protruding portions and described
The outer end face of two inflation mandrels is generally on same periphery " refer to all protruding portions positioned at the first inflation 5 end of mandrel
Outer end face with it is all second inflation mandrels 6 outer end face and axis at a distance from it is roughly equal, and can form one with first inflation
The outer end face of the coaxial cylindrical body of mandrel 5, the outer end face of all protruding portions and all second inflation mandrels 6 is in the cylindrical body
On circumference side.
According to the disclosure, the inflation mandrel can be the conventional kind and material of this field, specific inflation/deflation side
Method may be that this field is conventional, as long as guaranteeing that the mandrel under inflated condition is able to maintain certain shape and intensity, with full
Foot winding and moulding process need.
According to the disclosure, the shapes and sizes of fixed lobe 3 are not particularly limited, as shown in Figure 1, for connecting metal
The shapes and sizes of the fixed lobe 3 of flange 4 and the connecting hole of metal flange 4 match.For the ease of molding, fixation is convex
Rise 3 be preferably shaped to class T shape or class rectangle protrusion, the outer end face of fixed lobe 3 is preferably arc-shaped, the institute on same circumference
Having fixed lobe 3 is preferably that height is equal, so that the end face of all fixed lobes 3 on the circumference is on same periphery.
According to the disclosure, in order to connect metal flange at special-shaped composite shaft both ends, the both ends of hollow axis body section can be with
All have end linkage section.Further, in order to enhance the bonding strength of fixed lobe and metal flange, each end linkage section
On fixed lobe number can be 3~9, preferably 4~8.
In the preparation method according to the disclosure, prepreg tape (or prepreg) is that this field is conventional, can contain increasing
Strong fiber and thermosetting resin refer to resin matrix impregnating continuous fibres or fabric (espespecially band under conditions of strict control
Shape enhanced fabrics), the composition of resin matrix and reinforcement is made.Wherein, the type of reinforcing fiber is not wanted particularly
It asks, can be the common reinforcing fiber type of field of compound material, for example, reinforcing fiber can be for selected from carbon fiber, superelevation point
One or more of sub- weight polyethylene fiber, aramid fiber, basalt fibre and glass fibre.The reinforcing fiber of mentioned kind
Intensity is high, stitchability is good and preferable with the compatibility of thermosetting resin.
According in disclosed method, thermosetting resin can be the common thermosetting resin of field of compound material, example
Such as, thermosetting resin can for selected from epoxy resin, polyurethane resin, organic siliconresin, phenolic resin, polyimide resin and
One or more of bimaleimide resin.The simple thermosetting resin viscosity of mentioned kind is suitable for, forms rear stability
Good, intensity height, is conducive to the integral strength for improving composite shaft.
In the preparation method according to the disclosure, in step (4), can be in the method for mandrel body surface wrap prepreg tape
This field routine, prepreg tape can be one or more layers, for example, 1~9 layer, can be on mandrel body surface under preferable case
Prepreg tape is wound to form 2~8 layers of prepreg tape winding layer, at this point, the thickness and intensity of the prepreg tape winding layer on mandrel body surface
It is suitable for reinforcement more effectively being carried out to special-shaped composite shaft.
According to the disclosure, what the tooling can be conventional for this field, it is used for the molding forming frock of preformed member, in root
According in the preparation method of the disclosure, the middle method for squeezing and being vented the second inflation mandrel of step (5) is not particularly limited,
The disclosure is preferably in a kind of specific embodiment, as shown in figure 4, can pass through the radial motion from outside to inside of the sliding block in tooling
It squeezes and is vented the second inflation mandrel, wherein the number of sliding block can be identical as the second inflation mandrel, the end geometry of sliding block
Shape can match with the second inflation mandrel.After molding, sliding block is by initial position radial inward movement, sliding in motion process
The prepreg tape winding layer of the second inflation mandrel outer end face is supported in block end, as slide block movement, second inflates the gas in mandrel
It is gradually discharged, the prepreg tape winding layer of the second inflation mandrel outer end face is tensioned by ram extrusion, up to slide block movement to its end
Portion approaches with the initial position of the second inflation mandrel and is overlapped, and the end face of sliding block is approached with the body surface of end linkage section to be close to,
At this time second inflation mandrel in gas almost empty, prepreg tape winding layer along first inflation mandrel surface adhered shape in
Between the end face of sliding block and the body surface of end linkage section.
The second aspect of the disclosure provides the special-shaped composite wood being prepared using method described in disclosure first aspect
Expect axis.The abnormity composite shaft intensity is high, can be used for connecting by fixed lobe with metal flange.
The third aspect of the disclosure provides the connection method of a kind of composite shaft and metal flange, the composite shaft
For the special-shaped composite shaft that the second aspect of the disclosure provides, this method comprises: the special-shaped composite shaft is made to pass through institute
State end linkage section and the metal flange grafting.The metal flange of the disclosure and the connection method of composite shaft are using above-mentioned
Special-shaped composite shaft, it is being arranged by axis body both ends to carry out grafting with the cooperation of metal flange hole shape protrusion, avoid spiral shell
The defect that the drilling of the connection types such as bolt destroys fiber continuity, influences properties of product, this method bonding strength is high, stabilized structure and
Anti-twisting property is strong.
The disclosure is further illustrated by the following examples, but therefore the disclosure is not any way limited.Under
It states in embodiment and comparative example, prepreg tape is wrapped on the horizontal high-precision wrapping machine of Lianyun Harbour Wei De composite material company production
It completes.The method for measuring the peak torque of connection structure includes: that metal flange is installed on fixing composite material axis body, then
Fixing composite material axis body applies twisting resistance, maximum, force when test axis body and metal flange link position destroy to metal flange
Square.
Embodiment 1
The present embodiment is used to illustrate the special-shaped composite shaft preparation method and metal flange and composite shaft of the disclosure
Connection method, the shape of special-shaped composite shaft as shown in Figure 1, include the end linkage section 2 of hollow axis body section 1 and both ends,
The number of fixed lobe 3 on each end linkage section 2 is 4, assembles shape by the first inflation mandrel 5 and the second inflation mandrel 6
At mandrel body shape it is as shown in Figure 2.
The first inflation mandrel 5 and 8 second that processing obtains diagram shape respectively inflates mandrel 6 and assembles them into Fig. 2
Shown in mandrel body, by prepreg tape (be purchased from SGL, the trade mark be SIGRAFIL CT50-4.0/240-E100) be wrapped in mandrel body surface
Face winds 4 layers, obtains preformed member.
Above-mentioned preformed member is placed on forming frock, pushes sliding block radial motion from outside to inside simultaneously to squeeze using hydraulic press
It presses and makes all second to inflate gas in mandrels and empty, sliding block, which is depressed into behind bottom for product to be put into baking oven with tooling, to be added
Heat cure, 120-140 DEG C of temperature, curing time 15-30min.
Product is taken out out of baking oven after resin solidification, then sliding block is retracted and removes product from tooling, removes and has arranged
Second inflation mandrel of net gas, the first inflation mandrel is taken out from the cavity of molded part after being vented, obtains the present embodiment
Special-shaped composite shaft.
By the terminal connection portion of the abnormity composite shaft and metal flange grafting shown in Fig. 3, the connection structure is measured
Peak torque be 452Nm.
Embodiment 2
The present embodiment is used to illustrate the special-shaped composite shaft preparation method and metal flange and composite shaft of the disclosure
Connection method, using preparation method same as Example 1, the difference is that the fixed lobe on each end linkage section
Number be 6, obtain the special-shaped composite shaft of the present embodiment.
By the terminal connection portion of the abnormity composite shaft and the matched metal flange grafting of connecting hole, the connection knot is measured
The peak torque of structure is 643Nm.
Embodiment 3
The present embodiment is used to illustrate the special-shaped composite shaft preparation method and metal flange and composite shaft of the disclosure
Connection method, using preparation method same as Example 1, the difference is that substrate is asphalt base carbon fiber prepreg (three
Water chestnut Li Yang company, model DIALEAD HYEJ56M80QD), obtain the special-shaped composite shaft of the present embodiment.
By the terminal connection portion of the abnormity composite shaft and metal flange grafting shown in Fig. 3, the connection structure is measured
Peak torque be 416Nm.
Embodiment 4
The present embodiment is used to illustrate the special-shaped composite shaft preparation method and metal flange and composite shaft of the disclosure
Connection method this, the difference is that prepreg tape winding layer number is 3 layers, is obtained using preparation method same as Example 1
The special-shaped composite shaft of embodiment.
By the terminal connection portion of the abnormity composite shaft and metal flange grafting shown in Fig. 3, the connection structure is measured
Peak torque be 337Nm.
Comparative example 1
This comparative example is used to illustrate the connection method of metal flange and the composite shaft different from the disclosure, such as Fig. 5 institute
Show, carbon fibre composite hollow shaft is connect by 4 bolts with metal flange, the peak torque for measuring the connection structure is
214N·m。
Comparative example 2
This comparative example is used to illustrate the connection method of metal flange and the composite shaft different from the disclosure, will be without fixation
The carbon fibre composite hollow shaft of bulge-structure is put into mold together with metal flange as shown in Figure 3, by with implementation
The identical condition of example 1 is heating and curing molding, and four connection holes of metal flange are connected by solidified resin, measures the connection knot
The peak torque of structure is 292Nm.
Using the composite shaft of the disclosure it can be seen from the peak torque data of embodiment 1-4 and comparative example 1-2
The composite shaft that preparation method is prepared connect simple and efficient with metal flange, and connection structure intensity is high, anti-torsion is strong.
The preferred embodiment of the disclosure is described in detail in conjunction with attached drawing above, still, the disclosure is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure
Monotropic type, these simple variants belong to the protection scope of the disclosure.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the disclosure to it is various can
No further explanation will be given for the combination of energy.
In addition, any combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally
Disclosed thought equally should be considered as disclosure disclosure of that.
Claims (9)
1. a kind of method for preparing special-shaped composite shaft, which is characterized in that the abnormity composite shaft includes hollow axis body section
With end linkage section, the end linkage section includes the ontology extended in the axial direction by the hollow axis body section and from the ontology
Upper radially projecting fixed lobe, the fixed lobe is circumferentially spaced, and this method comprises the following steps:
(1) the first inflation mandrel to match in size and geometry with the special-shaped composite shaft, first inflation are prepared
Mandrel has the protruding portion to match in size and geometry with the fixed lobe;
(2) the second inflation of preparation mandrel, forms recessed between the second inflation mandrel and two adjacent fixed lobes
Concave portion position matches in size and geometry;
(3) the first inflation mandrel and multiple second inflation mandrels is made to be assembled into mandrel body, so that second inflation
Mandrel is filled between two adjacent protruding portions of the first inflation mandrel, and all protruding portions and described second
The outer end face of inflation mandrel is generally on same periphery;
(4) matched in size and geometry with being formed with the surface layer of the mandrel body in the mandrel body surface wrap prepreg tape
At least one layer of prepreg tape winding layer, obtains preformed member;
(5) preformed member is placed in tooling, squeezed by the radial motion from outside to inside of the sliding block in tooling and made and is described
Second inflation mandrel exhaust, so that the space that the second inflation mandrel occupies is released and has the prepreg tape winding layer
There is the geometry to match with the first inflation mandrel surface;
(6) preformed member is heating and curing after molding, opening the tooling be vented the first inflation mandrel and described in taking out
First inflation mandrel and the second inflation mandrel, obtain the special-shaped composite shaft.
2. connecting the method according to claim 1, wherein the both ends of the hollow axis body section all have the end
Connect section.
3. method according to claim 1 or 2, which is characterized in that the fixation on each end linkage section is convex
The number risen is 3~9.
4. the method according to claim 1, wherein in step (4), in the mandrel body surface wrap prepreg tape
To form 2~8 layers of prepreg tape winding layer.
5. the method according to claim 1, wherein the prepreg tape contains reinforcing fiber and thermosetting resin,
The reinforcing fiber is in carbon fiber, aramid fiber, ultra high molecular weight polyethylene fiber, basalt fibre and glass fibre
At least one.
6. according to the method described in claim 5, it is characterized in that, the thermosetting resin is selected from epoxy resin, phenolic aldehyde tree
One or more of rouge, polyimide resin, bimaleimide resin, polyurethane resin and vinylite.
7. the method according to claim 1, wherein this method comprises: in step (5), the number of the sliding block
Identical as the second inflation mandrel, the end geometries of sliding block match with the second inflation mandrel.
8. the temperature of molding is 120- the method according to claim 1, wherein the preformed member is heating and curing
140 DEG C, curing time 15-30min.
9. the special-shaped composite shaft being prepared using method described in any one of claim 1~8.
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CN201710561575.4A CN107399091B (en) | 2017-07-11 | 2017-07-11 | Special-shaped composite shaft, preparation method and the connection method with metal flange |
PCT/CN2018/071650 WO2019010931A1 (en) | 2017-07-11 | 2018-01-05 | Special-shaped composite material shaft, preparation method therefor, and connecting method of the special-shaped composite material shaft and metal flange |
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CN201710561575.4A CN107399091B (en) | 2017-07-11 | 2017-07-11 | Special-shaped composite shaft, preparation method and the connection method with metal flange |
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CN107399091A CN107399091A (en) | 2017-11-28 |
CN107399091B true CN107399091B (en) | 2019-09-06 |
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WO (1) | WO2019010931A1 (en) |
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CN107399091B (en) * | 2017-07-11 | 2019-09-06 | 北京汽车集团有限公司 | Special-shaped composite shaft, preparation method and the connection method with metal flange |
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