CN204659112U - A kind of bus deck of sandwich structure - Google Patents
A kind of bus deck of sandwich structure Download PDFInfo
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- CN204659112U CN204659112U CN201520224051.2U CN201520224051U CN204659112U CN 204659112 U CN204659112 U CN 204659112U CN 201520224051 U CN201520224051 U CN 201520224051U CN 204659112 U CN204659112 U CN 204659112U
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Abstract
The utility model belongs to technical field of composite materials, proposes a kind of bus deck of sandwich structure.A kind of bus deck of sandwich structure proposed has core (1), and core (1) is the composite layer be composited by the compound of fiber or fabric or fiber and fabric and hard polyurethane foams; The thickness of core (1) is 5 ~ 20mm, and density is 200 ~ 500kg/m
3; The upper surface of core (1), lower surface are bonded with surface layer (2) respectively; Surface layer (2) is glass fabric enhancing polymer matrix composites layer; The thickness of described surface layer (2) is 0.5 ~ 2.5mm, and density is 1800 ~ 2200kg/m
3.Bus deck of the present utility model has enough mechanical properties, installation reliability and excellent resistance to medium; And ensure that compressive property and the lightweight of bus deck, the effect of insulation, sound insulation and noise reduction can be played simultaneously.
Description
Technical field
The utility model belongs to technical field of composite materials, relates generally to technical field of automotive trim, is specifically related to a kind of bus deck of sandwich structure.
Background technology
As main load parts, the floor compartment desired strength of passenger vehicle is high, from heavy and light, shock-resistant, wear-resistant, long service life, good looking appearance, and along with the development of national economy, people require more and more higher to the comfortableness of in-trips vehicles.In addition, vehicle frequently can be subject to the effect of alternate load and the impact of the uncertain factor such as vibration, impact in the process of moving, these all to passenger car floor of new generation safety, environmental protection and energy-conservation in propose more strict requirement, and the development strategy of the advanced automobile material technology of taking as the leading factor with lightweight-alleviate passenger vehicle complete vehicle quality is the major measure of realizing this goal.
The lightweight of passenger vehicle, is exactly under the guarantee intensity of passenger vehicle and the prerequisite of security performance, reduces the kerb weight of automobile as much as possible, thus improve the dynamic property of automobile, reduce fuel consumption, reduce exhaust pollution.According to data, if vehicle complete vehicle weight reduces by 10%, fuel efficiency can improve 6% ~ 8%; Automobile kerb weight often reduces 100kg, and fuel consumption per hundred kilometers can reduce by 0.3 ~ 0.6L; Vehicle weight reduces by 1%, and oil consumption can reduce by 0.7%.Current, due to environmental protection and energy-conservation needs, the lightweight of automobile has become the trend of world car development.
At present, domestic bus deck mostly adopts the water-proof slab that one deck about 2mm that first to mat formation on base plate skeleton is thick, and then the high-density bamboo timber floor that about the 14mm that mats formation is thick, finally removes from office at bamboo-wood floor upper berth installed floor.Bamboo-wood floor, from great, reduces fuel economy.In use, easily there is the problems such as softening, layering, corrosion under wet environment, buckling deformation can be produced in dry environment, cause flooring laminate off.Offset plate and base plate skeleton, offset plate and bamboo-wood floor, bamboo-wood floor and flooring laminate employ a large amount of solvent-based adhesives in installation process, and the Small molecular such as benzene, formaldehyde of constantly release volatilization, can damage the health of human body of passenger.
In addition, Some Domestic bus deck adopts PVC or aluminium honeycomb sandwich structure.Though this kind of structure Be very effective in loss of weight, PVC material is hydraulic performance decline at low temperatures, there is the danger of easy brittle failure; There is significant problem in aluminium honeycomb sandwich structure, need carry out specially treated to screw installation position in installation process, enough nail power to ensure.
Therefore, consider that the public transport field of China's fast development is to requirements such as material lightweight, the feature of environmental protection, securities, present bus deck can't meet instructions for use completely.
Utility model content
For solving the problems of the technologies described above, the purpose of this utility model is the bus deck proposing a kind of sandwich structure.
For achieving the above object, the utility model adopts following technical scheme:
A bus deck for sandwich structure, described bus deck has core, and described core is the composite layer be composited by the compound of fiber or fabric or fiber and fabric and hard polyurethane foams; The thickness of described core is 7 ~ 20mm, and density is 200 ~ 500kg/m
3; Upper surface, the lower surface of described core are respectively arranged with surface layer; Described surface layer is that glass fabric strengthens polymer matrix composites layer; The thickness of described surface layer is 0.5 ~ 2.5mm, and density is 1800 ~ 2200kg/m
3; Described core be positioned at core upper surface, the surface layer of lower surface is bonded as one and forms the bus deck of sandwich structure; The thickness of the described bus deck of sandwich structure is 8 ~ 25mm, density p=400 ~ 800kg/m
3, buckling strength S
l>=50Mpa, buckling modulus G
l>=5.5Gpa, transverse bending strength S
t>=20Mpa, nail-holding ability F>=2000 N.
The bus deck of a kind of sandwich structure that the utility model proposes, adopt the sandwich structure that core is set between layer glass fiber reinforced resin based composites layer, adopt glass fabric to strengthen polymer matrix composites as surface layer, make bus deck have enough mechanical properties, installation reliability and excellent resistance to medium; Adopt by the compound of fiber or fabric or fiber and fabric as reinforcement, the composite be composited for matrix using the hard polyurethane foams of polyurethane resin foaming is as core, ensure that compressive property and the lightweight of bus deck, the effect of insulation, sound insulation and noise reduction can be played simultaneously; Solve short, shortage of resources in bamboo/wood plywood square service life, the shortcomings such as aluminum honeycombfloor complex forming technology, nail-holding ability difference and PVC foam low temperature easy fracture, linear expansion coefficient are large, are convenient to installation and maintenance.If replace now using bus deck, huge economic benefit and environmental benefit will be produced.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, core; 2, surface layer.
Detailed description of the invention
Illustrate that the utility model is described in more detail with detailed description of the invention below in conjunction with accompanying drawing.
embodiment one:
As shown in Figure 1, a kind of bus deck of sandwich structure, described bus deck has the surface layer 2, core 1 and the surface layer 2 that arrange from top to bottom; Described surface layer 2 is glass fabric enhancing polymer matrix composites layer; Described glass fabric strengthens polymer matrix composites layer with glass fibre woven roving for reinforcement, be that matrix adopts pultrusion or press moulding mode to prepare shaping with resin, the thickness that described glass fabric strengthens polymer matrix composites layer is 0.5mm, and density is 1900kg/m
3; It is 58% that described glass fabric strengthens glass fibre woven roving mass fraction in polymer matrix composites layer; Described core 1 with the direct yarn of glass fibre for reinforcement, with the RPUF of polyurethane resin foaming for matrix adopts mold pressing or rolling mould or pultrusion mode to be prepared from; The thickness of described core is 9mm, and density is 500kg/m
3; In described core 1, the direct yarn quality mark of glass fibre is 45%; Described glass fabric enhancing polymer matrix composites layer, core, glass fabric enhancing polymer matrix composites layer are bonded as one by adhesive and form the chassis of bus of sandwich structure, and the thickness of bus deck described in sandwich structure is 10mm; This embodiment chassis of bus performance is shown in Table 1.
Table 1 sandwich structure bus deck
| Project | Unit | Test result |
| Density | kg/m 3 | 640 |
| Buckling strength | MPa | 92.5 |
| Buckling modulus | MPa | 8.1 |
| Transverse bending strength | GPa | 80.3 |
| Nail-holding ability | N | 2038 |
embodiment two:
A bus deck for sandwich structure, described bus deck has the surface layer 2, core 1 and the surface layer 2 that arrange from top to bottom; Described surface layer 2 is glass fabric enhancing polymer matrix composites layer; Described glass fabric strengthens polymer matrix composites layer with glass fibre woven roving for reinforcement, be that matrix adopts pultrusion or press moulding mode to prepare shaping with resin, the thickness that described glass fabric strengthens polymer matrix composites layer is 0.5mm, and density is 1920kg/m
3; It is 52% that described glass fabric strengthens glass fibre woven roving mass fraction in polymer matrix composites layer; Described core 1 with the direct yarn of glass fibre for reinforcement, with the RPUF of polyurethane resin foaming for matrix adopts mold pressing or rolling mould or pultrusion mode to be prepared from; The thickness of described core is 9mm, and density is 480kg/m
3; In described core 1, the direct yarn quality mark of glass fibre is 51%; Described glass fabric enhancing polymer matrix composites layer, core, glass fabric enhancing polymer matrix composites layer are bonded as one by adhesive and form the chassis of bus of sandwich structure, and the thickness of bus deck described in sandwich structure is 10mm; This embodiment chassis of bus performance is shown in Table 1.
Table 2 sandwich structure bus deck
| Project | Unit | Test result |
| Density | kg/m 3 | 645.6 |
| Buckling strength | MPa | 119.4 |
| Buckling modulus | MPa | 10.5 |
| Transverse bending strength | GPa | 89.5 |
| Nail-holding ability | N | 2460 |
embodiment three:
A bus deck for sandwich structure, described bus deck has the surface layer 2, core 1 and the surface layer 2 that arrange from top to bottom; Described surface layer 2 is glass fabric enhancing polymer matrix composites layer; Described glass fabric strengthens polymer matrix composites layer with glass fibre woven roving for reinforcement, be that matrix adopts pultrusion or press moulding mode to prepare shaping with resin, the thickness that described glass fabric strengthens polymer matrix composites layer is 0.5mm, and density is 2016kg/m
3; It is 66% that described glass fabric strengthens glass fibre woven roving mass fraction in polymer matrix composites layer; Described core 1 with the direct yarn of glass fibre for reinforcement, with the RPUF of polyurethane resin foaming for matrix adopts mold pressing or rolling mould or pultrusion mode to be prepared from; The thickness of described core is 9mm, and density is 497kg/m
3; In described core 1, the direct yarn quality mark of glass fibre is 51%; Described glass fabric enhancing polymer matrix composites layer, core, glass fabric enhancing polymer matrix composites layer are bonded as one by adhesive and form the chassis of bus of sandwich structure, and the thickness of bus deck described in sandwich structure is 10mm; This embodiment chassis of bus performance is shown in Table 1.
Table 3 sandwich structure bus deck
| Project | Unit | Test result |
| Density | kg/m 3 | 639.3 |
| Buckling strength | MPa | 92.5 |
| Buckling modulus | MPa | 8.1 |
| Transverse bending strength | GPa | 29.4 |
| Nail-holding ability | N | 2460 |
Claims (1)
1. a bus deck for sandwich structure, is characterized in that: described bus deck has core (1); The thickness of described core (1) is 7 ~ 20mm, and density is 200 ~ 500kg/m
3; The upper surface of described core (1), lower surface are respectively arranged with surface layer (2); Described surface layer (2) is glass fabric enhancing polymer matrix composites layer; The thickness of described surface layer (2) is 0.5 ~ 2.5mm, and density is 1800 ~ 2200kg/m
3; Described core (1) be positioned at core upper surface, the surface layer (2) of lower surface is bonded as one and forms the bus deck of sandwich structure; The thickness of the described bus deck of sandwich structure is 8 ~ 25mm, density p=400 ~ 800kg/m
3, buckling strength S
l>=50Mpa, buckling modulus G
l>=5.5Gpa, transverse bending strength S
t>=20Mpa, nail-holding ability F>=2000 N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520224051.2U CN204659112U (en) | 2015-04-15 | 2015-04-15 | A kind of bus deck of sandwich structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520224051.2U CN204659112U (en) | 2015-04-15 | 2015-04-15 | A kind of bus deck of sandwich structure |
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| Publication Number | Publication Date |
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| CN204659112U true CN204659112U (en) | 2015-09-23 |
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| CN201520224051.2U Active CN204659112U (en) | 2015-04-15 | 2015-04-15 | A kind of bus deck of sandwich structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105667014A (en) * | 2016-03-31 | 2016-06-15 | 广州金发碳纤维新材料发展有限公司 | Passenger car floor |
| CN105922685A (en) * | 2016-05-04 | 2016-09-07 | 浙江华江科技股份有限公司 | Renewable thermoplastic compound board for high-strength environment-friendly bus floor and preparing method thereof |
| CN106671526A (en) * | 2016-10-21 | 2017-05-17 | 中国铁道科学研究院金属及化学研究所 | Fiber-reinforced composite plate, as well as preparation method and application thereof |
| CN109398501A (en) * | 2018-09-19 | 2019-03-01 | 中国第汽车股份有限公司 | Floor and preparation method thereof after in a kind of composite material integrated form for electric vehicle |
-
2015
- 2015-04-15 CN CN201520224051.2U patent/CN204659112U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105667014A (en) * | 2016-03-31 | 2016-06-15 | 广州金发碳纤维新材料发展有限公司 | Passenger car floor |
| CN105922685A (en) * | 2016-05-04 | 2016-09-07 | 浙江华江科技股份有限公司 | Renewable thermoplastic compound board for high-strength environment-friendly bus floor and preparing method thereof |
| CN105922685B (en) * | 2016-05-04 | 2018-01-02 | 浙江华江科技股份有限公司 | A kind of reproducible high-strength environment-friendly bus deck plastic composite board material and preparation method thereof |
| CN106671526A (en) * | 2016-10-21 | 2017-05-17 | 中国铁道科学研究院金属及化学研究所 | Fiber-reinforced composite plate, as well as preparation method and application thereof |
| CN109398501A (en) * | 2018-09-19 | 2019-03-01 | 中国第汽车股份有限公司 | Floor and preparation method thereof after in a kind of composite material integrated form for electric vehicle |
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