CN105253154B - High speed motor car composite underbody equipment ceiling board - Google Patents
High speed motor car composite underbody equipment ceiling board Download PDFInfo
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- CN105253154B CN105253154B CN201510721434.5A CN201510721434A CN105253154B CN 105253154 B CN105253154 B CN 105253154B CN 201510721434 A CN201510721434 A CN 201510721434A CN 105253154 B CN105253154 B CN 105253154B
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- carbon fiber
- exterior skin
- inside panel
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- ceiling board
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Abstract
The present invention provides a kind of high speed motor car composite underbody equipment ceiling board, including exterior skin, inside panel, middle foam layer and hook, exterior skin, inside panel are as raw material and using the shaping of vacuum introducing technology using carbon fiber twills, carbon fiber one-way fabric, middle foam layer uses PVC sandwiches foam for raw material and using the shaping of vacuum introducing technology, and PVC sandwiches foam includes foamed bulk part and positioned at the marginal portion at the body part edge；Exterior skin, inside panel, the common end of middle foam layer are provided with hook.The manufacture method that the technique is easily operated and manufacturing time is short.Carbon fibre composite equipment ceiling board inside panel, exterior skin and foam sandwich import one-shot forming using vacuum, and surface is smooth, and Assembly part is few, substantially reduces assembly cost and installation time, and be easy to daily maintenance.
Description
Technical field
The present invention relates to a kind of high speed motor car composite underbody equipment ceiling board.
Background technology
Be substantially improved with current domestic main line railway, urban light rail traffic operation speed, for vehicle lightweight with
Safe running performance proposes higher design standard.Equipment compartment is generally provided with the car sill of existing rail vehicle,
To additionally arrange equipment under most of car in wire casing, spool and other trains inside the confined space of equipment compartment.And train is at a high speed
Very strong air pressure wave can be produced during operation so that finger stone, ice cube or other object meetings near train bottom and track
Picked up, these objects can impact the equipment under the car of train bottom, jeopardize the safe for operation of train, especially for height
For fast motor train unit train, this harmfulness can be bigger.
At present, it is equipment under protection car, reduces air drag during train operation, protect equipment under car, it is ensured that high quick-action
The safe operation of car group train, usually require that equipment ceiling board is installed in equipment compartment bottom, be arranged on protection in equipment compartment
Equipment under car.The equipment ceiling board of existing rail vehicle uses metal material or metal composite material structure, its structure with
Material relatively simpleization, portion of material is because production domesticization is also not implemented in various factors, can not and due to generally metal material
The problems such as realizing lightweight.
In the prior art, metal material equipment ceiling board exist from it is great, heat transfer coefficient is big.This bottom plate uses in the wild
During, load working condition is complicated, metal decking degumming phenomenon easily occurs, and when high temperature changes, metal exterior skin
Very big thermal stress can be produced with inner side, one of bottom plate unsticking is primarily due to caused by the thermal deformation of structure.
Above mentioned problem should be paid attention to and solved the problems, such as in the design and production process of equipment ceiling board.
The content of the invention
Solved it is an object of the invention to provide a kind of lightweight high-intensity composite underbody equipment ceiling board now existing
For equipment ceiling board from great, load working condition is complicated, panel degumming easily occurs, and when high temperature changes, metal exterior skin
The problem of very big thermal stress causes equipment ceiling board unsticking can be produced with inner side.
The present invention technical solution be：
A kind of standard EMUs composite underbody equipment ceiling board, including exterior skin, inside panel, middle foam layer and
Hook, exterior skin, inside panel are to import work using carbon fiber twills, carbon fiber one-way fabric as raw material and using vacuum
Skill is molded, and middle foam layer uses PVC sandwiches foam for raw material and using the shaping of vacuum introducing technology, PVC sandwich foams
Including foamed bulk part and positioned at the marginal portion at the body part edge；Exterior skin, inside panel, middle foam layer
Common end be provided with hook, hook use U-shape structure, link up with using carbon fiber twills, carbon fiber one-way fabric as former material
Expect and use vacuum introducing technology to be molded.
Further, exterior skin, inside panel and middle foam layer are specially using being integrally formed：By PVC sandwich foams
The structure that matches with the outward appearance of bottom plate of marginal portion processing, and be coated with successively from bottom to up inside panel carbon fibre fabric,
The carbon fibre fabric of middle foam layer, exterior skin；Exceed in inside panel and the stressed-skin construction size of larger area in exterior skin
It is coated with during carbon fibre fabric breadth, it is necessary to complete large area product by the way of the dislocation splicing of unit interlayer in junction, and
Post package vacuum bag, after vacuum imports solidification, obtain composite underbody equipment ceiling board.
Further, resin used in vacuum importing is halogen-free environment-friendly flame-proof low viscosity epoxy resin, obtains composite car
Resin content is 40%~45% in the equipment ceiling board of bottom
Further, vacuum is imported solidification and solidified for 80 DEG C using low temperature, and hardening time 4h.
Bottom panel side carbon fibre fabric edge flange is that bottom plate inside panel fabric expands part, and exterior skin is adopted with flange fabric
Product is completed with the mode of unit interlayer dislocation lap joint to be coated with, wherein carbon fibre fabric includes carbon fiber twills, carbon fiber
One-way fabric, carbon fiber twills are coated with carbon fiber one-way fabric by the way of being staggeredly superimposed.
This kind of standard EMUs composite underbody equipment ceiling board, exterior skin, inside panel and middle foam layer are each other
Bond strength is high, and the composite material skin coefficient of heat conduction is small, zero thermal expansion coefficient, and the heat between covering and epoxy resin should
Power is small so that covering and middle foam layer are not easy to be layered, and solve the break-off caused by thermal deformation at high temperature.
This kind of standard EMUs composite underbody equipment ceiling board, have lightweight, high-strength, carrying is big, high fatigue property,
The superior qualities such as high impact, high flame resistance.Interior exterior skin raw materials are carbon fiber twills, carbon fiber one-way
Fabric.Carbon fiber twills provide enough intensity, rigidity and flat appearance, and carbon fiber one-way fabric provides foot
Enough mechanical strengths.Vacuum introducing technology substantially reduces preparation time, reduces the cost of manufacture.
Exterior skin, inside panel, the common end of middle foam layer are provided with hook, and bottom plate side uses hook structure, no
It is only capable of providing enough strength and stiffness, and ensure that the assembly performance of bottom plate and equipment compartment, meets bottom plate and equipment compartment bone
The safety suspension of frame, prevent train from, because high-speed cruising, severe jolt are to stress rupture caused by equipment compartment attachment structure, preventing bottom
There is phenomena such as releasing, sliding in plate.
PVC sandwiches foam includes foamed bulk part and positioned at the marginal portion at the body part edge, edge part
Divide the outward appearance marginal texture for being used for ensureing final Composite base plate.Using exterior skin, inside panel parcel PVC sandwich foams, make
The surface and lateral edge structure for obtaining Composite base plate can keep smooth and round and smooth.
Beneficial effects of the present invention：This kind of standard EMUs composite underbody equipment ceiling board, simple in construction, technique is easy
In the manufacture method operated and manufacturing time is short.Carbon fibre composite equipment ceiling board inside panel, exterior skin and foam
Sandwich to import one-shot forming using vacuum, surface is smooth, and Assembly part is few, when substantially reducing assembly cost and assembling
Between, and it is easy to daily maintenance.
Brief description of the drawings
Fig. 1 is the longitudinal cross-section schematic diagram of bottom plate of the embodiment of the present invention；
Fig. 2 is the overall top view of bottom plate of the embodiment of the present invention；
Fig. 3 is that bottom plate of embodiment of the present invention covering and edge flange are coated with schematic diagram；
Fig. 4 is the production procedure schematic diagram of the embodiment of the present invention；
Wherein：1- inside panels, 2- exterior skins, 3- centres foam layer, 4- hooks, 5- edges, 6- carbon fiber twills,
7- carbon fiber one-way fabrics.
Embodiment
The preferred embodiment that the invention will now be described in detail with reference to the accompanying drawings.
Embodiment
A kind of standard EMUs composite underbody equipment ceiling board, as shown in Figure 1 and Figure 2, including exterior skin 2, inside panel
1st, middle foam layer 3 and hook 4, exterior skin 2, inside panel 1 are using carbon fiber twills, carbon fiber one-way fabric as original
Material is simultaneously molded using vacuum introducing technology, and middle foam layer 3 uses PVC sandwiches foam to be imported for raw material and using vacuum
Technological forming, PVC sandwiches foam include foamed bulk part and positioned at the marginal portions at the body part edge；Exterior skin
2nd, inside panel 1, the common end of middle foam layer 3 are provided with hook 4, and hook 4 is knitted with carbon fiber twills, carbon fiber one-way
Thing is raw material and is molded using vacuum introducing technology.
Exterior skin 2, inside panel 1 import work using carbon fiber twills, carbon fiber one-way fabric as raw material, using vacuum
Skill is molded.Carbon fiber twills provide enough intensity, rigidity and flat appearance, and carbon fiber one-way fabric provides
Enough mechanical strengths, vacuum introducing technology substantially reduce the cost of manufacture.Resin used in vacuum importing is halogen-free environment-friendly flame-proof
Low viscosity epoxy resin, resin content is 40%~45% in bottom plate.
Hook 4 used uses U-shape structure, links up with 4 using carbon fiber twills, carbon fiber one-way fabric as raw material,
It is molded using vacuum introducing technology, hook 4 can not only provide enough strength and stiffness, and ensure that bottom plate and equipment compartment
Assembly performance, meet the safety suspension of bottom plate and equipment compartment skeleton, prevent train from connecting because of high-speed cruising, severe jolt to equipment compartment
Stress rupture caused by binding structure, prevent bottom plate from phenomena such as releasing, sliding occur.
Middle foam layer 3 uses PVC sandwich foams, and PVC sandwiches foam includes foamed bulk part and positioned at described
The marginal portion at body part edge, marginal portion use smooth half-oval shaped, and marginal portion is wrapped up for carbon fibre fabric,
Marginal portion strengthens the intensity of bottom panel side after carbon fibre fabric parcel, ensures base plate quality.So that Composite base plate
Side can keep smooth.
Inside panel 1, exterior skin 2 and middle foam layer 3 and hook 4 are integrally formed by vacuum introducing technology.Technique
Flow, as shown in figure 3, specific moulding process is as follows：Foam edge is repaired to the marginal texture to match with bottom plate outward appearance, and will
The composite layers of reinforcement is coated with the carbon fibre fabric of inside panel 1, sandwich PVC foams, the carbon of exterior skin 2 successively from bottom to up
After fabric is coated with so as to completing large area, then encapsulated vacuum bag, after vacuum imports solidification, you can composite bottom
Plate.
This kind of standard EMUs composite underbody equipment ceiling board, using the fibre reinforced composites of non-metallic material
Instead of metal structure so that weight reduces by more than 1/3 than virgin metal equipment ceiling board, reaches weight loss effect.With existing work
Skill is compared, and integrally formed bottom plate ensure that the continuity of bottom plate, has prevented original cementing structure due to covering heat transfer and heat
Expansion so that between covering and structure glue because of caused by thermal deformation degumming phenomenon.
Example structure is simple, and technique is easily operated and manufacturing time is short, and Assembly part is few, substantially reduces assembly cost
And installation time, it is easy to daily maintenance.And with lightweight, high-strength, carrying is big, high fatigue property, high impact,
The superior qualities such as high flame resistance.
In addition to the implementation, patented product of the present invention can also have other embodiment.It is all to use equivalent substitution or wait
The technical scheme that effect conversion is formed, in the protection domain for all falling within this patent requirement.
Claims (1)
- A kind of 1. high speed motor car composite underbody equipment ceiling board, it is characterised in that：Including exterior skin, inside panel, intermediate vesicles Foam interlayer and hook, exterior skin, inside panel are as raw material and using true using carbon fiber twills, carbon fiber one-way fabric Empty introducing technology shaping, middle foam layer use PVC sandwiches foam for raw material and using the shaping of vacuum introducing technology, PVC Sandwich foam includes foamed bulk part and positioned at the marginal portion at the body part edge；Exterior skin, inside panel, centre The common end of foam layer is provided with hook, and hook is used U-shape structure, links up with and knitted with carbon fiber twills, carbon fiber one-way Thing is raw material and is molded using vacuum introducing technology；Exterior skin, inside panel and middle foam layer are specially using being integrally formed：The marginal portion of PVC sandwich foams is added The structure that work and the outward appearance of bottom plate match, and be coated with successively from bottom to up the carbon fibre fabric of inside panel, middle foam layer, The carbon fibre fabric of exterior skin, carbon fibre fabric include carbon fiber twills, wherein carbon fiber one-way fabric, carbon fiber twill Fabric is coated with carbon fiber one-way fabric by the way of being staggeredly superimposed；The covering knot of larger area in inside panel and exterior skin , it is necessary to complete large area system by the way of the dislocation splicing of unit interlayer in junction when structure size exceedes carbon fibre fabric breadth Part is coated with, then encapsulated vacuum bag, and vacuum imports solidification using 80 DEG C of solidifications of low temperature, and hardening time 4h, vacuum import solidification Afterwards, composite underbody equipment ceiling board is obtained, resin used in vacuum importing is halogen-free environment-friendly flame-proof low viscosity epoxy resin, is obtained Into composite underbody equipment ceiling board, resin content is 40%~45%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510721434.5A CN105253154B (en) | 2015-10-30 | 2015-10-30 | High speed motor car composite underbody equipment ceiling board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510721434.5A CN105253154B (en) | 2015-10-30 | 2015-10-30 | High speed motor car composite underbody equipment ceiling board |
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| CN105253154A CN105253154A (en) | 2016-01-20 |
| CN105253154B true CN105253154B (en) | 2017-11-17 |
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| CN201510721434.5A Active CN105253154B (en) | 2015-10-30 | 2015-10-30 | High speed motor car composite underbody equipment ceiling board |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105398460A (en) * | 2015-11-05 | 2016-03-16 | 江苏恒神股份有限公司 | Composite material train bottom equipment compartment bottom plate for high speed train |
| CN108216375A (en) * | 2016-12-21 | 2018-06-29 | 郑州宇通客车股份有限公司 | A kind of car and its side wall structure of passenger car |
| CN108357506B (en) * | 2018-04-24 | 2023-10-24 | 江苏华复轨道交通科技有限公司 | Rail transit carbon fiber component structure |
| CN108407831B (en) * | 2018-04-28 | 2023-10-24 | 江苏华复轨道交通科技有限公司 | Motor car equipment compartment structure |
| CN109466405A (en) * | 2018-12-03 | 2019-03-15 | 航天科工武汉磁电有限责任公司 | A kind of multi-functional shelter of lightweight and its forming method |
| CN114425870A (en) * | 2020-10-12 | 2022-05-03 | 中国石油化工股份有限公司 | Motor train unit front end integrated vacuum infusion molding system and molding method |
| CN112519815B (en) * | 2020-12-10 | 2022-02-08 | 中车唐山机车车辆有限公司 | Hoisting device, carriage and rail vehicle |
| CN112693484B (en) * | 2021-01-07 | 2022-07-08 | 中车青岛四方机车车辆股份有限公司 | Equipment cabin, upper edge beam of equipment cabin and forming process of upper edge beam |
| CN112918687B (en) * | 2021-01-29 | 2022-08-02 | 东华大学 | Integral sealed cabin and preparation method thereof |
| CN113696927B (en) * | 2021-09-26 | 2023-05-23 | 中车唐山机车车辆有限公司 | Rail vehicle |
| CN117382683B (en) * | 2023-10-12 | 2025-11-14 | 株洲时代新材料科技股份有限公司 | A hoisting partition wall for high-speed trains and its forming method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2692541B1 (en) * | 1992-06-18 | 2001-09-07 | Alsthom Gec | Railway vehicle formed by modular assembly. |
| CN102166825A (en) * | 2010-12-24 | 2011-08-31 | 中国科学院宁波材料技术与工程研究所 | Technology of making automobile engine cover with carbon fiber reinforcement resin-based composite material |
| CN102529252B (en) * | 2012-01-16 | 2014-11-12 | 胡海波 | High-impact-resistance wear-resistant heat insulation composite board |
| CN104018617B (en) * | 2014-05-26 | 2016-01-13 | 江苏恒神股份有限公司 | The large plate of the vehicle-mounted shelter of lightweight high-intensity composite material |
| CN204437666U (en) * | 2014-12-10 | 2015-07-01 | 衡阳泰豪通信车辆有限公司 | A kind of Lightweight high-strength composite material wallboard |
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