CN216183390U - Composite material floor for railway passenger car - Google Patents
Composite material floor for railway passenger car Download PDFInfo
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- CN216183390U CN216183390U CN202122499815.7U CN202122499815U CN216183390U CN 216183390 U CN216183390 U CN 216183390U CN 202122499815 U CN202122499815 U CN 202122499815U CN 216183390 U CN216183390 U CN 216183390U
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Abstract
The utility model provides a composite material floor for a railway passenger car, and belongs to the technical field of floors. The floor comprises the following components in sequence from top to bottom: the fiber reinforced composite material comprises a first fireproof coating, a first fiber reinforced layer, a second fiber reinforced layer, a woven core material layer, a sound insulation layer, a third fiber reinforced layer, a fourth fiber reinforced layer and a second fireproof coating; edge-sealing fireproof plates are arranged around the woven core material layer; the edge-sealing fireproof plate is provided with a groove, and a reinforcing steel plate is arranged in the groove. The floor has excellent fireproof performance and sound insulation performance, reduces the weight of the whole vehicle, and improves the stripping risk of products.
Description
Technical Field
The utility model belongs to the technical field of floors, and particularly relates to a composite floor for a railway passenger car.
Background
In the existing railway passenger car, wood material floors, aluminum honeycomb floors, phenolic resin floors, self-leveling floors and the like are mostly used in the floor part of a passenger room of a train, wood slicing, fireproof glue spraying and hot press molding are usually adopted for wood floor products, and the modes of the wood floor products are related to glue spraying equipment, hot press equipment and cutting equipment, so that the molding process has high cost and is environment-friendly, flame retardant, moisture absorption and weight of the wood floor products are difficult to meet the relevant requirements; the aluminum honeycomb floor is formed by compositely bonding an aluminum profile framework, an aluminum honeycomb core material with a certain specification and an aluminum plate by using epoxy glue or glue films, and is characterized in that the aluminum honeycomb floor is relatively simple in forming, but heavier than a wood floor in weight control, and the problem of collapse and pit is easily caused when the aluminum plate is impacted due to the characteristic of the aluminum plate due to the fact that the skin, the core material and the framework are bonded in the mechanical property aspect and the peeling risk exists in the long-term use process; although the phenolic resin floor solves the problems of fire resistance and flame retardance, the corresponding requirements can be met only by strict post-treatment on the aspect of environmental protection due to the characteristics of the phenolic resin, and in addition, the problems of skin peeling and core material peeling and bulging exist in the existing phenolic floor which adopts a bonding and forming process after glass fiber phenolic prepreg and phenolic resin foaming preforming. In order to reduce the loss of a train in the aspect of power, improve the running speed of the train, improve the lightweight, environment-friendly, flame retardant, sound insulation and noise reduction of a component product, and avoid the peeling problem of a sandwich structure as much as possible, so that the life cycle of the product is prolonged, a fiber reinforced 3D composite floor which is anti-peeling, high in flame retardant level, relatively light in weight and good in sound insulation is developed, and the structure of the fiber reinforced 3D composite floor is updated and optimized.
The floor part of the train passenger room of the 350 km standard motor train comprehensive inspection vehicle adopts a new product of the fiber reinforced 3D composite floor.
The performance index requirements of the floor are as follows:
1. the weight requirement is as follows: less than or equal to 10kg per square meter
2. Fire protection requirements: EN45545-HL2
3. The sound insulation requirement is as follows: not less than 31dB
4. Anti-stripping: not less than 45 N.mm/mm, no peeling or bulging phenomenon
5. And (3) environmental protection: TB/T3139
6. Impact resistance: 324g 5g, 42.8. + -. 0.2mm diameter ball dropped from 0.8m, no visible cracks and pit diameter less than 10mm (ISO4586)
The floor part is made of plywood and aluminum honeycomb materials, the weight of a workpiece is 12-14 kg per square meter and exceeds the required 10kg per square meter, and the plywood floor basically hardly reaches the EN45545-HL2 grade in the aspect of structural fire resistance, so that the 1 st floor and the 2 nd floor cannot meet the requirements; the sound insulation capacity of the aluminum honeycomb product can only reach about 24dB, and the 1 st and 3 rd products cannot be satisfied; the sound insulation amount of the phenolic floor is about 25dB, the skin and the core material are bonded in a plane, the hub climbing effect of an aluminum honeycomb is avoided, the stripping and bulging phenomena exist, the requirements of items 3 and 4 are difficult to meet, if the requirements exceed design indexes, the comfort level of riding is greatly influenced, the running safety of a train is seriously endangered, and the huge cost of train stopping and dismantling change is further caused. And then a product which is light, fireproof, soundproof, impact-resistant, anti-stripping and environment-friendly is developed to ensure the technical index requirements to ensure the driving safety and the requirements of customers on environment protection.
In the project of '350 km standard motor car comprehensive inspection vehicle', the passenger room floor part structure is made of a 3D composite material floor, namely, the passenger room floor consists of six parts, namely a foaming type fireproof coating, a glass fiber reinforced upper skin, a fireproof plate framework, a glass fiber reinforced 3D woven PU core material, soundproof wood and a pre-embedded reinforced steel plate. When each layer of material and the fireproof plate with fireproof edge sealing are laid on the floor, the fit clearance between the materials cannot be completely ensured to be uniform, and finally, the weight of the product has certain difference of about +/-1%.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a composite material floor for a railway passenger car, which has excellent fireproof performance and sound insulation performance, and simultaneously reduces the weight of the whole car and improves the peeling risk of products.
The utility model provides a composite material floor for a railway passenger car, which sequentially comprises the following components from top to bottom:
the fiber reinforced composite material comprises a first fireproof coating, a first fiber reinforced layer, a second fiber reinforced layer, a woven core material layer, a sound insulation layer, a third fiber reinforced layer, a fourth fiber reinforced layer and a second fireproof coating;
edge-sealing fireproof plates are arranged around the woven core material layer;
the edge-sealing fireproof plate is provided with a groove, and a reinforcing steel plate is arranged in the groove.
Preferably, the first fireproof coating and the second fireproof coating are made of foamed polyester.
Preferably, the first fiber reinforced layer, the second fiber reinforced layer, the third fiber reinforced layer and the fourth fiber reinforced layer are made of glass fibers.
Preferably, the material of the weaving core material layer is glass fiber reinforced PU.
Preferably, the sound insulation layer is made of oak.
Preferably, the thickness of the first fireproof coating is 0.5-1mm, the thickness of the first fiber reinforced layer is 0.5-1mm, the thickness of the second fiber reinforced layer is 0.5-1mm, the thickness of the third fiber reinforced layer is 0.5-1mm, the thickness of the fourth fiber reinforced layer is 0.5-1mm, and the thickness of the second fireproof coating is 0.5-1 mm.
Preferably, the thickness of the weaving core material layer is 11-15mm, and the thickness of the sound insulation layer is 2-3 mm.
Preferably, the thickness of the reinforced steel plate is 3-5 mm.
The utility model has the advantages of
The utility model provides a composite material floor for a railway passenger car, which sequentially comprises the following components from top to bottom: the fiber reinforced composite material comprises a first fireproof coating, a first fiber reinforced layer, a second fiber reinforced layer, a woven core material layer, a sound insulation layer, a third fiber reinforced layer, a fourth fiber reinforced layer and a second fireproof coating; edge-sealing fireproof plates are arranged around the woven core material layer; the edge-sealing fireproof plate is provided with a groove, and a reinforcing steel plate is arranged in the groove. The floor has excellent fireproof performance and sound insulation performance, reduces the weight of the whole vehicle, and improves the stripping risk of products.
Drawings
FIG. 1 is a schematic structural view of a composite floor for a railway vehicle according to the present invention;
FIG. 2 is an exploded view of a composite floor for a railway vehicle according to the present invention;
in the figure, 1, a first fiber reinforced layer, 2, a second fiber reinforced layer, 3, a woven core material layer, 4, an edge-sealed fireproof plate, 5, a sound insulation layer, 6, a fourth fiber reinforced layer, 7, a third fiber reinforced layer, 8, a reinforced steel plate, 9, a first fireproof coating, 10, a second fireproof coating, 11 and an interface are shown.
Detailed Description
The utility model provides a composite material floor for a railway passenger car, which comprises the following components in sequence from top to bottom as shown in figures 1-2:
a first fire-resistant coating 9, a first fiber-reinforced layer 1, a second fiber-reinforced layer 2, a braided core layer 3, a sound-insulating layer 5, a third fiber-reinforced layer 7, a fourth fiber-reinforced layer 6, and a second fire-resistant coating 10;
the edge-sealing fireproof plate 4 is arranged around the braided core material layer 3;
the edge-sealing fireproof plate 4 is provided with a groove, and a reinforced steel plate 8 is arranged in the groove.
The first fireproof coating 9 and the second fireproof coating 10 are made of foamed polyester, the first fiber reinforced layer 1, the second fiber reinforced layer 2, the third fiber reinforced layer 7 and the fourth fiber reinforced layer 6 are made of glass fiber with the warp and weft directions of 800 g/square meter or more, and the woven core material layer 3 is made of glass fiber reinforced PU. The sound insulation layer 5 is made of oak.
In this embodiment, the first fireproof coating 9 has a thickness of 0.5-1mm, the first fiber-reinforced layer 1 has a thickness of 0.5-1mm, the second fiber-reinforced layer 2 has a thickness of 0.5-1mm, the fourth fiber-reinforced layer 6 has a thickness of 0.5-1mm, the third fiber-reinforced layer 7 has a thickness of 0.5-1mm, and the second fireproof coating 10 has a thickness of 0.5-1 mm. The thickness of the weaving core material layer 3 is 11-15mm, and the thickness of the sound insulation layer 5 is 2-3 mm; the thickness of the edge-sealing fireproof plate 4 is the sum of the thickness of the woven core material layer 3 and the thickness of the sound insulation layer 5, and the thickness of the reinforced steel plate 8 is 3-5 mm.
The side of the composite floor in this embodiment is also provided with an interface 11 for installation.
The utility model provides a composite material floor for a railway passenger car, which is cut according to the size of a drawing; the edges are sealed by using the fireproof plates 5, the width of the product is guaranteed to be 35mm, the first fireproof coating 9 is sprayed on the mold for 20min by using a spraying mode, then the first fiber reinforced layer 1, the second fiber reinforced layer 2 and the edge-sealed fireproof plates 4 are laid, the woven core material layer 3 is placed in the edge-sealed fireproof plates 4 to be tightly attached, and the sound insulation layer 5 is placed below the woven core material layer 3.
The reinforced steel plate 8 is processed into a groove by CNC according to the drawing position, then is bonded on the edge-sealed fireproof plate 4 by structural adhesive, is solidified for more than 30min and is placed at the position specified by the drawing; and placing a third fiber reinforced layer 7 and a fourth fiber reinforced layer 6 below the edge-sealed fireproof plate 4 and the sound insulation layer 5, introducing a certain amount of resin by using a vacuum introduction process, molding and curing for more than 24 hours, finally spraying a second fireproof coating 10 on the fourth fiber reinforced layer 6, and curing for more than 24 hours to obtain the composite material floor for the railway passenger car.
Claims (8)
1. The composite floor for the railway passenger car is characterized by comprising the following components in sequence from top to bottom:
the fiber reinforced composite material comprises a first fireproof coating, a first fiber reinforced layer, a second fiber reinforced layer, a woven core material layer, a sound insulation layer, a third fiber reinforced layer, a fourth fiber reinforced layer and a second fireproof coating;
edge-sealing fireproof plates are arranged around the woven core material layer;
the edge-sealing fireproof plate is provided with a groove, and a reinforcing steel plate is arranged in the groove.
2. The composite floor board as claimed in claim 1, wherein the first and second fire-retardant coatings are made of foamed polyester.
3. The composite floor board as claimed in claim 1, wherein the first, second, third and fourth fiber-reinforced layers are made of glass fiber.
4. The composite floor board as claimed in claim 1, wherein the woven core layer is made of glass fiber reinforced PU.
5. The composite floor board as claimed in claim 1, wherein the soundproof layer is made of oak.
6. The composite floor board as claimed in claim 1, wherein the first fire-retardant coating has a thickness of 0.5-1mm, the first fiber-reinforced layer has a thickness of 0.5-1mm, the second fiber-reinforced layer has a thickness of 0.5-1mm, the third fiber-reinforced layer has a thickness of 0.5-1mm, the fourth fiber-reinforced layer has a thickness of 0.5-1mm, and the second fire-retardant coating has a thickness of 0.5-1 mm.
7. The composite floor for a railway passenger car according to claim 1, wherein the thickness of the woven core layer is 11-15mm, and the thickness of the sound insulation layer is 2-3 mm.
8. The composite floor for a railway passenger car according to claim 1, wherein the thickness of the reinforced steel plate is 3-5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122499815.7U CN216183390U (en) | 2021-10-18 | 2021-10-18 | Composite material floor for railway passenger car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122499815.7U CN216183390U (en) | 2021-10-18 | 2021-10-18 | Composite material floor for railway passenger car |
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| CN216183390U true CN216183390U (en) | 2022-04-05 |
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| CN202122499815.7U Active CN216183390U (en) | 2021-10-18 | 2021-10-18 | Composite material floor for railway passenger car |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114228277A (en) * | 2021-10-18 | 2022-03-25 | 长春城际轨道客车配件有限公司 | Composite material floor for railway passenger car |
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2021
- 2021-10-18 CN CN202122499815.7U patent/CN216183390U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114228277A (en) * | 2021-10-18 | 2022-03-25 | 长春城际轨道客车配件有限公司 | Composite material floor for railway passenger car |
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