CN108622123A - The structure and manufacturing process of the carbon fibre composite sky iron car body of low cost - Google Patents
The structure and manufacturing process of the carbon fibre composite sky iron car body of low cost Download PDFInfo
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- CN108622123A CN108622123A CN201810435802.3A CN201810435802A CN108622123A CN 108622123 A CN108622123 A CN 108622123A CN 201810435802 A CN201810435802 A CN 201810435802A CN 108622123 A CN108622123 A CN 108622123A
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- car body
- carbon fibre
- fibre composite
- side wall
- sandwich
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
- B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
-
- 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
- B29C70/34—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 and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
- B29C70/342—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 and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using isostatic pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
- B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
- B61D17/06—End walls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
- B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
- B61D17/08—Sides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
- B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
- B61D17/12—Roofs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Laminated Bodies (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses the structures and manufacturing process of a kind of carbon fibre composite sky iron car body of low cost, belong to the applied technical field of composite material on the rail vehicle, including vehicle body side wall, the equal assembly connection in vehicle body side wall both ends has headwall, assembly connection has upper frame and chassis to the inner top surface and inner bottom surface of vehicle body side wall respectively, and the outer top surface assembly connection of vehicle body side wall has ceiling, and bogie mounting hole is offered on ceiling；The vehicle body side wall and headwall include reinforcing tendons skeleton, inside panel and exterior skin, reinforce being filled with sandwich foam block in the grid of tendons skeleton；The ceiling includes sandwich laminate, upper covering and lower covering；The upper frame, chassis reinforce tendons skeleton, inside panel, exterior skin, upper covering and lower covering by carbon fibre composite molding integrated molding；The inside for reinforcing tendons skeleton is filled with sandwich foam, achievees the purpose that the function and structure that meet the bearing mode of suspension type car body under the premise of car body is light-weighted.
Description
Technical field
The invention belongs to the applied technical field of composite material on the rail vehicle, led more particularly to suspension type sky iron
Domain, and in particular to a kind of structure and manufacturing process of the carbon fibre composite sky iron car body of low cost.
Background technology
Currently, domestic be still in infancy the research of carbon fibre composite car body, composite material at this stage is only
It is the replacement in some non-stress parts, existing standard EMU CFPR equipment compartments realize the integration of structure, relatively
In aluminium alloy structure, CFRP equipment compartments loss of weight 35%, using the train of this standard EMU CFPR equipment compartment in 2015 6
Moon manufacture.In December, 2011 uses carbon fibre composite headstock hood in the 500km/h high-speed test (HST) vehicles of completion.Shanghai magnetic
The driver's cabin of aerotrain is the headstock of maximum single-piece fiberglass reinforced in the world.Current Domestic not yet transport by a business
Capable composite material car body.
External research is comparatively relatively more early, the LRVCitidas trains of Alstom, front end resin infusion at
Type；DIAB companies make the driver's cabin of double train using glass fiber compound material；The FibrecomOy companies of Finland utilize
Honeycomb and foam core material develop a kind of channel-type composite technology, are designed using with rail vehicle；Railway research institute of South Korea
TTX pendulum trains gather around there are one 23m long bodyshell and first use carbon fiber composite material casing train,
Its body part (not including chassis) is mainly carbon fibre composite, the inside enhancing of aluminum honeycomb Sandwich materials and stainless steel
Skeleton, 2010 formal progress comercial operations of the vehicle, weight alleviate 15% compared with Stainless Steel Shell, and weight loss effect is simultaneously
Unobvious；ACS companies also begin to set foot in composite-material body shell, produce a kind of light sandwich sweep of bending；Pang Badi
Company produces a kind of Talent trains of lightweight mixed structure, and vehicle body is composite material；India's rail traffic uses composite wood
Expect that design gear case, the design of composite material make gear-box loss of weight 50%；TVG bullet trains, use carbon fibre composite
Car body is designed, car body weight is mitigated 25%；Germany has developed the steering of first item fibrous composite in the world
Frame.
Carbon fibre composite car body in current track train is primarily present following defect：
(1) skeleton is still using full welding aluminium among the carbon fibre composite car body developed now in a strict sense
Alloy framework structure is not full carbon fibre composite car body, and there are the deformations between nonmetallic materials and metal material not
The problems such as matching；
(2) existing full carbon fibre composite Subway Body loss of weight unobvious, it is of high cost, it is more difficult on comercial operation；
On September 10th, 2016, first sky iron train of China is formally offline, complete to weld using high capacity cell traction technique
Frame structure of aluminum alloy adds composite material skin technology, realizes the lightweight of car body, has beautiful and comfortable and sound-insulating and heat-insulating etc. special
Point.A few days ago, it has been developed that the full carbon fibre composite Subway Body in first of the world with entirely autonomous intellectual property, makes whole
Vehicle more similar ground ferrous metal car body loss of weight about 35%, to the carrying capacity for improving car body, reduce energy consumption, reduction entirely
Life cycle cost, reduction line impairments etc. are of great significance.
Suspension type sky iron occurs enriching public transport standard, alleviates the pressure of other public transport, in many merits
Ground space is most importantly made full use of by the way of overhead, exactly because this characteristic of suspension type sky iron so that
Suspension type sky iron car body other than having common characteristic with the car body of conventional rails mode of transportation (light rail and subway etc.),
The lightweight of car body is put forward higher requirements, since the running environment of suspension type sky iron is good, at low cost, load-carrying is small, speed
The advantages such as slowly, length is small, the carbon fibre composite of suspension type sky iron train is optimal experiment car body, other rails
Road car body can be carried out on the basis of the carbon fibre composite car body of empty iron car body.There are no for outstanding at this stage
The carbon fibre composite car body of hanging sky iron car.
Due to being different from subway, the running environment and bearing mode of light rail car are directed to suspension type sky iron train at this stage
The structure of carbon fibre composite car body need completely new design and research and development.
Invention content
In order to solve the above problem of the existing technology, present invention aims at provide a kind of carbon fiber of low cost
The structure and manufacturing process of composite material sky iron car body meet holding for suspension type car body to reach under the premise of car body is light-weighted
The function of load mode and the purpose of structure.
The technical solution adopted in the present invention is：A kind of structure of the carbon fibre composite sky iron car body of low cost, packet
The vehicle body side wall and underbody of U-shaped channel-shaped are included, vehicle body side wall both ends assembly connection has headwall；The inner top surface of vehicle body side wall
Distinguish assembly connection upper frame and chassis with inner bottom surface；The top that the outer top surface assembly connection of vehicle body side wall matches with the headwall
Canopy offers bogie mounting hole on ceiling；The vehicle body side wall and headwall include in latticed reinforcement tendons skeleton, interior
Covering and exterior skin, the inside panel and exterior skin are attached at the inner surface and outer surface for reinforcing tendons skeleton respectively
On, reinforce being filled with multiple sandwich foam blocks in the grid of tendons skeleton；The ceiling includes sandwich laminate, upper covering and lower illiteracy
Skin, the upper covering and lower covering are attached at the uper side surface and downside surface of the sandwich laminate respectively；The upper frame, bottom
Frame reinforces tendons skeleton, inside panel, exterior skin, upper covering and lower covering by carbon fibre composite molding integrated molding；Institute
It states reinforcement tendons skeleton and is set as hollow structure, and the inside for reinforcing tendons skeleton is filled with sandwich foam.
Further, the sandwich foam, sandwich foam block and sandwich laminate are all made of hard fire-fighting foam and are made.
Further, the section of the sandwich laminate is in the trapezoidal shape of bottom edge opening, and the madial wall of opening is equipped with
It is interior along side；It is described interior to be connected by screw on the outer top surface of the vehicle body side wall along side.
Further, the upper frame includes two lateral top side rails, two longitudinal top side rails and top rack, the transverse direction
Top side rail and the U-shaped channel-shaped of longitudinal top side rail；The top rack is by integrally formed drum head piece and rectangle top beam structure
At the both ends of drum head piece are respectively fitted in two longitudinal top side rails and are bolted to connection, rectangle top beam
End is assembled in lateral top side rail.
Further, the chassis includes two lateral skirt members, two longitudinal skirt members, drum load bearing beam and spacer screen
Frame, the transverse direction skirt member and the U-shaped channel-shaped of longitudinal skirt member；The spacer screen frame by integrally formed drum cross member and
Rectangle bottom girder is constituted, and the both ends of drum cross member are respectively fitted in two longitudinal skirt members and are bolted to connection,
The end of rectangle bottom girder is assembled in lateral skirt member；The both sides of the drum load bearing beam respectively with the spacer screen frame and institute
State vehicle body side wall assembly connection.
Further, the built-in fitting being embedded between the inside panel and exterior skin inside the sandwich foam block,
Threaded hole is reserved in built-in fitting.
Further, the outside of the built-in fitting and reinforcement tendons skeleton is coated with foaming layer.
Further, further include flange and evagination sliding slot, the flange and evagination sliding slot by bolt with it is described pre-buried
Part connects, and flange and evagination sliding slot connect with the surface glue of the inside panel in succession；The internal sleeve tipping of the flange is furnished with
Handrail.
The invention also discloses a kind of manufacturing process of the carbon fibre composite sky iron car body of low cost, including it is following
Step：
(1) mold manufacturing：Wood mold coupled according to the manufacture of the section outer profile of car body, length over ends of body is wood mold coupled length
Multiple；Composite plys are spread in wood mold coupled surface hand, form composite material mould；
(2) laying and exterior skin manufacture：The inside of composite material mould is covered with fiber composite material successively in step (1)
Material, carbon fiber prepreg and vacuum bag, are placed into baking oven and carry out being formed by curing exterior skin；
(3) it places sandwich foam block and reinforces tendons skeleton：It is covered with transition adhesive layer in the exterior skin inner surface of step (2),
It is placed on transition adhesive layer and reinforces tendons skeleton, and sandwich foam block is put into the grid for reinforcing tendons skeleton, using second bonding
Technique is by sandwich foam block and reinforces tendons skeleton and exterior skin bonding connection, then is placed in baking oven and is carried out after vacuumizing whole
Body cures；
(4) laying and inside panel manufacture：On surface after sandwich foam block and reinforcement tendons skeleton cure in step (3)
It is covered with transition adhesive layer, carbon fiber prepreg and fibrous composite successively, by sandwich foam block and is added using total adhesive technology
Strengthening tendons skeleton and carbon fiber prepreg bonding connection, then be placed in baking oven and carry out integrally curing after vacuumizing, form car body
Unit；
(5) it repeats step (1)~step (4) and generates multiple car body units, assembly connection shape will be passed through between car body unit
At car body.
Further, the fibrous composite in the step (2) and step (4) is the glass fibers for being attached with metal mesh
Tie up or be attached with the aramid fiber of metal mesh；Composite plys in the step (1) are that glass epoxy resin base is compound
Material.
Beneficial effects of the present invention are：
1. the present invention in such a way that upper frame and chassis arrange in pairs or groups and to form " double carriers ", is suitble to suspension type sky iron car body
The method of operation is different from the bearing structure mode of subway；Since vehicle body side wall, the equal assembly connection of ceiling are on upper frame, upper frame
Entire car body can be then carried, bogie is connected across bogie mounting hole with upper frame, substitutes traditional car body ceiling and turns to
The connected mode of frame, chassis are connected in vehicle body side wall, and chassis is served only for carrying passenger, and load is transmitted to car body side from chassis
Wall, then upper frame is arrived, upper frame is then by the direct bearing load of bogie, above final load transmission to track girder, further load
Lotus is distributed on entire car body, realizes the light-weighted maximization of car body；
2. the vehicle body of carbon fibre composite sky iron car body of the present invention is carbon fibre composite sandwich structure, including carbon
The exterior skin of fibrous composite, the inside panel of carbon fibre composite, carbon fibre composite between inside and outside covering
Reinforce tendons skeleton and sandwich foam block, by " second bonding technique " and " adhesive technology altogether " realize integration entirety car body into
Row carrying；Not only the overall stiffness of car body had been improved, but also has reduced a large amount of number of components and assembly work, it is thus also avoided that metal
Weld defect has reached good sound-insulating and heat-insulating effect, has expanded the inner space of car body；
3. the vehicle body side wall of carbon fibre composite sky iron car body of the present invention by both sides carbon fibre composite and be located at
Intermediate sandwich foam block constitutes " sandwich " structure, sandwich effect " substantially increase the bending stiffness of car body and antifatigue
Performance, and cooperation is laid on the fibrous composite on carbon fibre composite surface, fibrous composite contains metal mesh, can
Greatly improve the protecting against shock performance and lightning resistance energy of vehicle body；
4. carbon fibre composite sky iron car body of the present invention can also meet the connection of bogie and car body, body apparatus is put
It sets, passenger position, car body tire are placed and the Functional Design space of escaping function；
5. the molding mode of sub-module that the present invention uses is molded multiple car body units, each car body list by sub-module
Assembly connection is integrally formed car body at car body compared to tradition between member, on the one hand, can be no longer to autoclave or baking oven
Size has strict demand；On the other hand, a set of piecemeal mold can be suitble to the car body of polytypic, minimumization of cost of implementation；
6. the carbon fibre composite prepreg that the present invention uses, and sandwich foam, sandwich foam block and sandwich laminate are equal
It is made of hard fire-fighting foam, hard fire-fighting foam has flame-retarding characteristic, while having nontoxic environmental protection characteristic, Jin Erti
The general safety performance of high car body.
Description of the drawings
Fig. 1 is a kind of overall structure of the structure of the carbon fibre composite sky iron car body of low cost provided by the invention
Schematic diagram；
Fig. 2 is a kind of decomposition texture of the structure of the carbon fibre composite sky iron car body of low cost provided by the invention
Schematic diagram；
Fig. 3 is a kind of section view signal of the structure of the carbon fibre composite sky iron car body of low cost provided by the invention
Figure；
Fig. 4 be a kind of carbon fibre composite sky iron car body of low cost provided by the invention structure in sandwich laminate
Structural schematic diagram；
Fig. 5 be a kind of carbon fibre composite sky iron car body of low cost provided by the invention structure in reinforce muscles and bones
The structural schematic diagram of frame；
Fig. 6 be a kind of carbon fibre composite sky iron car body of low cost provided by the invention structure in upper frame and bottom
The structural schematic diagram of frame；
Fig. 7 be a kind of carbon fibre composite sky iron car body of low cost provided by the invention structure in flange dress
Distribution structure schematic diagram (one)；
Fig. 8 be a kind of carbon fibre composite sky iron car body of low cost provided by the invention structure in flange dress
Distribution structure schematic diagram (two)；
Fig. 9 be a kind of carbon fibre composite sky iron car body of low cost provided by the invention structure in evagination sliding slot
Assembling structure schematic diagram；
Figure 10 be a kind of carbon fibre composite sky iron car body of low cost provided by the invention manufacturing process in rigidity
The schematic diagram of connection type one；
Figure 11 be a kind of carbon fibre composite sky iron car body of low cost provided by the invention manufacturing process in rigidity
The schematic diagram of connection type two；
Figure 12 be a kind of carbon fibre composite sky iron car body of low cost provided by the invention manufacturing process in car body
The partial schematic diagram of side wall.
Specific implementation mode
Below in conjunction with the accompanying drawings and specific embodiment the present invention is further elaborated.
As shown in figs. 1 to 9, the present invention provides a kind of structure of the carbon fibre composite sky iron car body of low cost,
It includes the vehicle body side wall 4 of U-shaped channel-shaped, and the equal assembly connection in 4 both ends of the vehicle body side wall has headwall 1, and headwall 1 is for sealing
The both ends open of vehicle body side wall 4, and the open side inner wall of vehicle body side wall 4 is equipped with interior edge, the both sides on interior edge are respectively vehicle body side wall
4 inner top surface and the outer top surface of vehicle body side wall 4, assembly connection has 5 He of upper frame respectively for the inner top surface and inner bottom surface of vehicle body side wall 4
Chassis 6, i.e. upper frame 5 and chassis 6 are connect with the vehicle body side wall 4, and the outer top surface assembly connection of vehicle body side wall 4 has and institute
State the ceiling 2 that headwall 1 matches, the thickness x2 of length+headwall 1 of length=vehicle body side wall 4 of ceiling 2 is opened up on ceiling 2
There are bogie mounting hole 3, the inside that bogie stretches to ceiling 2 by bogie mounting hole 3 to be connect with the upper frame 5, upper frame
5 are transmitted to load on suspended rail by bogie；The vehicle body side wall 4 and headwall 1 include in latticed reinforcing rib
Skeleton 7, inside panel 8 and exterior skin 9, the inside panel 8 and exterior skin 9 are attached at the inside table for reinforcing tendons skeleton 7 respectively
On face and outer surface, reinforce the overall stiffness that tendons skeleton 7 is used to be promoted car body, it should at the door of car body or window position
Ensure the integrality of reinforcement tendons skeleton 7, reinforces being filled with multiple sandwich foam blocks 10, sandwich foam block in the grid of tendons skeleton 7
10 can be inserted to the corresponding grid for reinforcing tendons skeleton 7 by cutting formation in advance；The ceiling 2 includes sandwich
Laminate 11, upper covering 13 and lower covering 12, the upper covering 13 and lower covering 12 are attached at the upper of the sandwich laminate 11 respectively
Side surface and downside surface；The upper frame 5, reinforces tendons skeleton 7, inside panel 8, exterior skin 9, upper covering 13 and lower illiteracy at chassis 6
Skin 12 is molded by carbon fibre composite and is integrally formed, and using the mechanical characteristic of carbon fibre composite, can improve car body
Section rigidity, utmostly mitigate car body overall weight；The reinforcement tendons skeleton 7 is set as hollow structure, and reinforces muscles and bones
The inside of frame 7 is filled with sandwich foam 15, and sandwich foam 15 is filled in by foam mold in the inner cavity for reinforcing tendons skeleton 7,
With being not easy to demould, the moment of inertia is big and fitting area is big advantage；Symmetrically offered on the vehicle body side wall 4 car door and
Vehicle window reinforces tendons skeleton 7 and has closing in design at the position of car door and vehicle window, to ensure to reinforce the integrality of tendons skeleton 7.
Based on above structure：
Has escaping function design：Suspension type sky iron car body is above overhead, apart from about 8 meters or so of ground, car body hair
It needs to shift passenger when the accidents such as calamity of lighting a fire, it is to need to consider and design that car body, which has escaping function,.Survival equipment is mainly
Gasbag-type and sliding board-type, are placed under the chassis of car body, once accident occurs, need to shift passenger, survival equipment appliance for releasing single
Go out, it is preferred that hard fire-fighting foam uses hard polyurethane foams.
Has the design of car body locomotive function：It is placed when suspension type sky iron car body and needs to move on the ground or on ground
When, it needs that tire is installed, waits tire pop-up when moving, when hanging up operation, tire is taken under chassis.
It is mainly used for placing the equipment such as car body air-conditioning, power supply between ceiling and upper frame.
The sandwich foam 15, sandwich foam block 10 and sandwich laminate 11 are all made of hard fire-fighting foam and are made, wherein
Sandwich foam block 10 and sandwich laminate 11 are produced into corresponding shape and structure all in accordance with actual conditions, and hard fire-fighting foam has
Insulation effect is good, light-weight, specific strength is big, the good characteristics such as easy for construction, while also having sound insulation, shockproof, electrical isolation, resistance to
The features such as hot, cold-resistant, solvent resistant.
The section of the sandwich laminate 11 is in the trapezoidal shape of bottom edge opening, i.e., sandwich laminate 11 is in the ladder of one side opening
Shape channel-shaped, and the madial wall of opening is equipped with interior along side；It is described interior to be connected by screw in the vehicle body side wall 4 along side
On outer top surface, the installation of sandwich laminate 11 is fixed in realization, and then the ceiling 2 for reaching car body is installed.
The upper frame 5 includes the longitudinal top side rail 17 of two lateral top side rails 16, two and top rack, wherein two transverse directions
Top side rail 16 connects to form rectangular frame structure with the end of two longitudinal top side rails 17, the transverse direction top side rail 16 and longitudinal direction
The U-shaped channel-shaped of top side rail 17；The top rack is made of integrally formed drum head piece 19 and rectangle top beam 18, work
The both ends of type head piece 19 are respectively fitted in two longitudinal top side rails 17 and are bolted to connection, rectangle top beam 18
End be assembled in lateral top side rail 16, preferably, the drum head piece 19 is uniformly arranged in two lateral top margins
Between beam 16, rectangle top beam 18 is uniformly arranged between two longitudinal top side rails 17.
The chassis 6 includes two lateral skirt members, two longitudinal skirt members, drum load bearing beam 14 and spacer screen frame, described
Lateral skirt member and the U-shaped channel-shaped of longitudinal skirt member；The spacer screen frame is indulged by integrally formed drum cross member and rectangular base
Beam is constituted, and the both ends of drum cross member are respectively fitted in two longitudinal skirt members, that is, are assembled in the slot of longitudinal skirt member,
And be bolted to connection, the end of rectangle bottom girder is assembled in lateral skirt member, i.e. rectangle bottom girder is assembled to transverse direction
In the slot of skirt member；The both sides of the drum load bearing beam 14 respectively with 4 assembly connection of spacer screen frame and the vehicle body side wall, as
Preferably, the drum cross member is uniformly arranged between two lateral skirt members, and rectangle bottom girder is uniformly arranged in two and indulges
To between skirt member.
The built-in fitting 20 being embedded between the inside panel 8 and exterior skin 9 inside the sandwich foam block 10, in advance
Threaded hole is reserved in embedded part 20, screw or bolt can be arranged in threaded hole, reach built-in fitting 20 can fix car body its
The purpose of his facility, preferably, the built-in fitting 20 is made of titanium alloy material.
The built-in fitting 20 and the outside for reinforcing tendons skeleton 7 are coated with foaming layer 21, and foaming layer 21 can be played well
It is heat-insulated and buffering effect.
Further include flange 22 and evagination sliding slot 23, the flange 22 and evagination sliding slot 23 by bolt with it is described pre-buried
Part 20 connects, and turns bolt realization and is fixed to the installation of flange 22 or evagination sliding slot 23, and flange 22 and evagination sliding slot 23 are equal
It is connect in succession with the surface glue of the inside panel 8, further to increase the mounting stability to flange 22 and evagination sliding slot 23；
The internal sleeve tipping of the flange 22 is furnished with handrail 24, is played by flange 22 and is fixed to the installation of handrail 24.
The invention also discloses a kind of manufacturing process of the carbon fibre composite sky iron car body of low cost, including it is following
Step：
(1) mold manufacturing：Wood mold coupled according to the manufacture of the section outer profile of car body, length over ends of body is wood mold coupled length
Multiple；Composite plys are spread in wood mold coupled surface hand, form composite material mould；Preferably, the present embodiment
In, length over ends of body is set as 9 meters, and wood mold coupled length is set as 4.5 meters, and composite plys integral shaping method can be big
Amount reduces number of parts, to mitigate construction weight, cost of manufacture is reduced, while largely reducing fastener number, to mitigate
Construction weight reduces the assembly cost of structure.
(2) laying and exterior skin 9 manufacture：The inside of composite material mould is covered with fiber composite material successively in step (1)
Material 27, carbon fiber prepreg 26 and vacuum bag, vacuum bag are sealed and apply surface pressing, be placed into baking oven and consolidated
Change forms exterior skin 9；
(3) it places sandwich foam block 10 and reinforces tendons skeleton 7：It is covered with transition on 9 inner surface of exterior skin of step (2)
Adhesive layer 25 is placed on transition adhesive layer 25 and reinforces tendons skeleton 7, and is put into sandwich foam block in the grid for reinforcing tendons skeleton 7
10, tendons skeleton 7 and 9 bonding connection of exterior skin, sandwich foam block 10 by sandwich foam block 10 and are reinforced using second bonding technique
Bonding connection is carried out by transition adhesive layer 25 with exterior skin 9 with tendons skeleton 7 is reinforced, then is placed in baking oven and after vacuumizing
Carry out integrally curing；(as shown in Figure 12)
(4) laying and inside panel 8 manufacture：Table after sandwich foam block 10 and reinforcement tendons skeleton 7 cure in step (3)
Transition adhesive layer 25, carbon fiber prepreg 26 and fibrous composite 27 are covered on face successively, using total adhesive technology by sandwich
Foam block 10 and reinforcement tendons skeleton 7 and 26 bonding connection of carbon fiber prepreg, sandwich foam block 10 and reinforcement tendons skeleton 7 and carbon
Bonding connection is carried out by transition adhesive layer 25 between fiber prepreg material 26, then is placed in baking oven and is carried out after vacuumizing whole
Body cures, and forms car body unit；(as shown in figure 12)
(5) it repeats step (1)~step (4) and generates multiple car body units, assembly connection shape will be passed through between car body unit
It by rigid connection or non-rigid is formed by connecting at car body, between adjacent two car bodies unit.
For step (1), that is, sub-module forming technique is used, it is specific as follows：The length of car body according to its model not
With may have difference, and cross sectional shape is often similar, in line with integrated integral forming technique and the unitized premise of mold,
Cost is utmostly reduced, piecemeal mold is of great significance.
Piecemeal mold refers to is divided into two pieces or more the mold of script car body, on the one hand, can no longer to autoclave or
The size of baking oven is strict with；On the other hand, a set of piecemeal mold can be suitble to polytypic, minimumization of cost of implementation.
When car body is divided into several car body units and then is linked into an integrated entity by equipment, this result does not often have
Integrally formed rigidity, assembly connection position are link most weak in entire car body.Using between big cross section in the present embodiment
Connection type, to ensure the rigidity at assembly connection position, the main two ways using rigid connection and non-rigid connection,
Wherein, rigid connection between vehicle body side wall 4 is mainly taken in (1) rigid connection, is divided between car body unit after docking and leading to
Cross be bolted or car body unit between be mutually socketed；(2) mode of non-rigid connection is taken, that is, uses sealed rubber
Windscreen realizes the connection between two car body units, realizes the relative motion between two car body units.
It is specific as shown in Figure 10, Figure 11,
Wherein, as shown in Figure 10, when by mold to car body unit formation, the port position of car body unit go out into
Row closes up formed in docked between side, two neighboring car body unit after, it is interior after side is bonded to each other, by bolt into luggage
With connection；
As shown in figure 11, it when by mold to car body unit formation, is carried out at one end port position of car body unit
Closing in forms running-on, the port sizes for being dimensioned slightly smaller than car body unit of running-on, and realizing can carry out mutually between two car body units
The mode of socket is assembled.
Fibrous composite 27 in the step (2) and step (4) is the glass fibre or attached for being attached with metal mesh
The aramid fiber of metal mesh, metal mesh can be attached on the surface of glass fibre or aramid fiber；The step (1)
In composite plys be glass epoxy resin based composites.
Above-mentioned carbon fiber prepreg 26 uses carbon fiber T700 prepregs, and carbon fiber epoxy one-way tape can also be used
Prepreg.
The present invention is not limited to above-mentioned optional embodiment, anyone can show that other are each under the inspiration of the present invention
The product of kind form, however, make any variation in its shape or structure, it is every to fall into the claims in the present invention confining spectrum
Interior technical solution, is within the scope of the present invention.
Claims (9)
1. a kind of structure of the carbon fibre composite sky iron car body of low cost, which is characterized in that include the car body of U-shaped channel-shaped
Side wall, the equal assembly connection in vehicle body side wall both ends have headwall, and assembly connection has respectively for the inner top surface and inner bottom surface of vehicle body side wall
Upper frame and chassis, and the outer top surface assembly connection of vehicle body side wall has the ceiling to match with the headwall, offers and turns on ceiling
To frame mounting hole；The vehicle body side wall and headwall include be in latticed reinforcements tendons skeleton, inside panel and exterior skin, it is described interior
Covering and exterior skin are attached at respectively on the inner surface and outer surface for reinforcing tendons skeleton, are reinforced in the grid of tendons skeleton
Filled with multiple sandwich foam blocks；The ceiling includes sandwich laminate, upper covering and lower covering, and the upper covering and lower covering divide
It is not attached at the uper side surface and downside surface of the sandwich laminate；The upper frame, reinforces tendons skeleton, inside panel, outer illiteracy at chassis
Skin, upper covering and lower covering are molded by carbon fibre composite and are integrally formed；The reinforcement tendons skeleton is set as hollow structure, and
The inside for reinforcing tendons skeleton is filled with sandwich foam.
2. the structure of the carbon fibre composite sky iron car body of low cost according to claim 1, which is characterized in that described
Sandwich foam, sandwich foam block and sandwich laminate are all made of hard fire-fighting foam and are made.
3. the structure of the carbon fibre composite sky iron car body of low cost according to claim 1, which is characterized in that described
The section of sandwich laminate is in the trapezoidal shape of bottom edge opening, and the madial wall of opening is equipped with interior along side；It is described interior to pass through along side
Screw is connected on the outer top surface of the vehicle body side wall.
4. the structure of the carbon fibre composite sky iron car body of low cost according to claim 1, which is characterized in that described
Upper frame includes two lateral top side rails, two longitudinal top side rails and top rack, and the transverse direction top side rail and longitudinal top side rail are in U
Type groove shape；The top rack is made of integrally formed drum head piece and rectangle top beam, the both ends difference of drum head piece
It is assembled in two longitudinal top side rails and is bolted to connection, the end of rectangle top beam is assembled in lateral top side rail.
5. the structure of the carbon fibre composite sky iron car body of low cost according to claim 1, which is characterized in that described
Chassis includes two lateral skirt members, two longitudinal skirt members, drum load bearing beam and spacer screen frame, the transverse direction skirt member and longitudinal direction
The U-shaped channel-shaped of skirt member；The spacer screen frame is made of integrally formed drum cross member and rectangle bottom girder, drum cross member
Both ends be respectively fitted in two longitudinal skirt members and be bolted to connection, the end of rectangle bottom girder is assembled to transverse direction
In skirt member；The both sides of the drum load bearing beam respectively with spacer screen frame and the vehicle body side wall assembly connection.
6. the structure of the carbon fibre composite sky iron car body of low cost according to claim 1, which is characterized in that described
The built-in fitting being embedded between inside panel and exterior skin inside the sandwich foam block is reserved with threaded hole in built-in fitting.
7. the structure of the carbon fibre composite sky iron car body of low cost according to claim 6, which is characterized in that described
Built-in fitting and the outside for reinforcing tendons skeleton are coated with foaming layer.
8. the structure of the carbon fibre composite sky iron car body of low cost according to claim 6, which is characterized in that also wrap
Flange and evagination sliding slot are included, the flange and evagination sliding slot are connect by bolt with the built-in fitting, and flange and evagination are slided
Slot connects with the surface glue of the inside panel in succession；The internal sleeve tipping of the flange is furnished with handrail.
9. a kind of manufacturing process of the carbon fibre composite sky iron car body of low cost, which is characterized in that include the following steps：
(1) mold manufacturing：Wood mold coupled according to the manufacture of the section outer profile of car body, length over ends of body is times of wood mold coupled length
Number；Composite plys are spread in wood mold coupled surface hand, form composite material mould；
(2) laying and exterior skin manufacture：The inside of composite material mould is covered with fibrous composite, carbon successively in step (1)
Fiber prepreg material and vacuum bag are placed into baking oven and carry out being formed by curing exterior skin；
(3) it places sandwich foam block and reinforces tendons skeleton：It is covered with transition adhesive layer, transition in the exterior skin inner surface of step (2)
It is placed on adhesive layer and reinforces tendons skeleton, and sandwich foam block is put into the grid for reinforcing tendons skeleton, using second bonding technique
By sandwich foam block and reinforce tendons skeleton and exterior skin bonding connection, then is placed in baking oven and is carried out after vacuumizing whole solid
Change；
(4) laying and inside panel manufacture：It is spread successively on surface after sandwich foam block and reinforcement tendons skeleton cure in step (3)
There are transition adhesive layer, carbon fiber prepreg and fibrous composite, muscles and bones by sandwich foam block and is reinforced using total adhesive technology
Frame and carbon fiber prepreg bonding connection, then be placed in baking oven and carry out integrally curing after vacuumizing, form car body unit；
(5) it repeats step (1)~step (4) and generates multiple car body units, vehicle will be formed by assembly connection between car body unit
Body.
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| CN201810435802.3A CN108622123B (en) | 2018-05-09 | 2018-05-09 | Low-cost carbon fiber composite air-iron vehicle body and manufacturing process |
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| CN110203289A (en) * | 2019-04-10 | 2019-09-06 | 武汉格罗夫氢能汽车有限公司 | A kind of carbon fibre composite sill strip |
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| CN110588897B (en) * | 2019-11-01 | 2021-03-26 | 连云港神鹰复合材料科技有限公司 | Preparation method of integrally-formed carbon fiber bogie swing bolster safety crane |
| CN110588897A (en) * | 2019-11-01 | 2019-12-20 | 连云港神鹰复合材料科技有限公司 | Preparation method of integrally-formed carbon fiber bogie swing bolster safety crane |
| CN111086535A (en) * | 2019-12-04 | 2020-05-01 | 中车青岛四方机车车辆股份有限公司 | Composite material connecting structure for railway vehicle and forming method |
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| CN110978967A (en) * | 2019-12-18 | 2020-04-10 | 凯勒(南京)新材料科技有限公司 | Integrally-formed full-composite refrigerator car door and preparation method |
| CN112026297A (en) * | 2020-09-27 | 2020-12-04 | 安徽安凯汽车股份有限公司 | Modular sandwich vehicle roof cover and manufacturing method thereof |
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| CN112757740A (en) * | 2020-12-30 | 2021-05-07 | 巩义市泛锐熠辉复合材料有限公司 | High-strength lightweight carriage plate and preparation method thereof |
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| CN113021950A (en) * | 2021-03-05 | 2021-06-25 | 江苏金君泰车辆饰件科技有限公司 | Production method of integrated processing-formed ceiling |
| CN113353110A (en) * | 2021-05-24 | 2021-09-07 | 常州市新创智能科技有限公司 | Carbon fiber composite end wall structure and forming process thereof |
| CN113085938A (en) * | 2021-06-07 | 2021-07-09 | 常州市宏发纵横新材料科技股份有限公司 | Integrated side beam main body structure in bogie and manufacturing method |
| WO2023285436A1 (en) * | 2021-07-16 | 2023-01-19 | Siemens Mobility Austria Gmbh | Side wall for a rail vehicle |
| CN113619627A (en) * | 2021-08-20 | 2021-11-09 | 中车唐山机车车辆有限公司 | Vehicle body and magnetic levitation vehicle |
| CN113771893A (en) * | 2021-08-20 | 2021-12-10 | 中车唐山机车车辆有限公司 | Vehicle body and magnetic levitation vehicle |
| CN113771892A (en) * | 2021-08-20 | 2021-12-10 | 中车唐山机车车辆有限公司 | Vehicle body and magnetic levitation vehicle |
| CN113771893B (en) * | 2021-08-20 | 2023-05-23 | 中车唐山机车车辆有限公司 | Vehicle body and magnetic levitation vehicle |
| CN113954887A (en) * | 2021-11-01 | 2022-01-21 | 中车唐山机车车辆有限公司 | Rail vehicle |
| WO2023092613A1 (en) * | 2021-11-24 | 2023-06-01 | 中车长春轨道客车股份有限公司 | Rail train, and locomotive and process for manufacturing locomotive |
| CN115027075A (en) * | 2022-07-12 | 2022-09-09 | 鹤壁安易捷智能制造有限公司 | Non-metal composite material thermal insulation carriage and manufacturing method thereof |
| WO2024050988A1 (en) * | 2022-09-05 | 2024-03-14 | 中车长春轨道客车股份有限公司 | Front-end structure of maglev train and maglev train |
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