CN210882111U - Fireproof floor structure for underframe of railway vehicle - Google Patents
Fireproof floor structure for underframe of railway vehicle Download PDFInfo
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- CN210882111U CN210882111U CN201921618317.6U CN201921618317U CN210882111U CN 210882111 U CN210882111 U CN 210882111U CN 201921618317 U CN201921618317 U CN 201921618317U CN 210882111 U CN210882111 U CN 210882111U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The utility model discloses a fireproof floor structure for a rail vehicle underframe, which comprises a bottom bearing frame and a floor laid on the bottom bearing frame; the whole carbon steel welding that adopts of bottom bearing frame form, include: a rectangular outer frame and a plurality of cross beams; a hat-shaped fireproof plate with the top facing downwards is arranged between every two adjacent cross beams; the two side walls of the hat-shaped fireproof plate are clamped between two adjacent cross beams, the two edges of the hat-shaped fireproof plate are respectively glued with the upper surfaces of the two adjacent cross beams into a whole correspondingly, and the top of the hat-shaped fireproof plate is positioned above the lower surfaces of the cross beams; the floor is connected with each cross beam in an adhesive mode; and a cold-proof heat-insulating material is arranged between the floor and the hat-shaped fireproof plate. Therefore, the utility model discloses simple reliable can bear the structure fire prevention, has reduced welding work load moreover, has the cost advantage.
Description
Technical Field
The utility model relates to a be used for rail vehicle chassis fire prevention floor structure belongs to urban rail vehicle chassis floor structure.
Background
With the continuous development of the rail vehicle technology, the requirements on the vehicle floor are also continuously improved, and higher standards and requirements are provided for the floor in smoke and fire, environmental protection, weight, energy conservation, safety, sound insulation, vibration reduction, heat preservation and the like.
The chinese patent No. 01113677.4, entitled "method for manufacturing sandwich structure panel" of the utility model discloses a sandwich structure panel, which combines the glue-spraying surface of the bottom plate and the panel with the honeycomb panel, the bottom plate and the panel can be aluminum sheets, the honeycomb panel is an aluminum honeycomb panel, the aluminum sheet sandwich structure panel has certain rigidity and strength, but is not ideal for the present high-speed train in the aspects of vibration reduction, sound insulation and heat preservation. The utility model discloses a high-speed train plywood square that chinese patent specification is 200920300138.8, including the plywood, respectively be equipped with marginal combination aluminium alloy in the both sides of plywood, on the plywood on the surface with the combination edge aluminium alloy unified floor cloth of laying on the surface, be connected by the damping glue film between plywood, combination edge aluminium alloy and the floor cloth, lay the metal sheet on the bottom surface of plywood, be connected by the damping glue film between plywood and the metal sheet. The utility model discloses a chinese patent application number is 201010165620.2 (application publication number CN 101811505A) utility model patent application discloses a motor car floor, forms by five-ply board, rubber slab, five-ply board, rubber slab and five-ply board veneer in the floor main part, and the floor main part on above-mentioned high-speed train plywood floor and motor car floor all is the plywood, and the intensity on floor is not good enough, short service life. The utility model discloses a geothermal floor that chinese patent application number is 200920304644.4's utility model patent specification, top-down is equipped with electric heat membrane and insulating layer respectively between panel and the bottom plate corresponding to the region that the epirelief strip encloses.
SUMMERY OF THE UTILITY MODEL
A chassis fireproof floor structure for rail vehicle chassis, be a simple and reliable chassis structure that can bear the structure fire prevention, reduced welding work volume moreover, have the cost advantage.
In order to realize the technical purpose, the utility model discloses the technical scheme who takes does:
a fireproof floor structure for a rail vehicle underframe comprises a bottom bearing frame and a floor paved on the bottom bearing frame; the whole carbon steel welding that adopts of bottom bearing frame form, include: the rectangular outer frame and the plurality of cross beams are transversely arranged in the rectangular outer frame along the length extending direction of the rectangular outer frame;
a hat-shaped fireproof plate with the top facing downwards is arranged between every two adjacent cross beams; the two side walls of the hat-shaped fireproof plate are clamped between two adjacent cross beams, the two edges of the hat-shaped fireproof plate are respectively glued with the upper surfaces of the two adjacent cross beams into a whole correspondingly, and the top of the hat-shaped fireproof plate is positioned above the lower surfaces of the cross beams;
the floor is connected with each cross beam in an adhesive mode; and a cold-proof heat-insulating material is arranged between the floor and the hat-shaped fireproof plate.
Furthermore, the fireproof plate is prefabricated by stainless steel plates.
Furthermore, the cold-proof heat-insulating material is ceramic fiber.
Furthermore, floor cloth is laid on the surface of the floor.
Further, two edges of the hat-shaped fireproof plate are respectively and correspondingly glued with the upper surfaces of two adjacent cross beams into a whole through adhesive Sika221 FR.
Further, the bottom bearing frame is square steel, and ceramic fibers are arranged in the square steel.
Furthermore, the two edges of the cap-shaped fireproof plate are arranged in a zigzag manner, and the sawteeth on the two edges of the cap-shaped fireproof plate are arranged in a staggered manner; gaps are reserved between the sawteeth at the edges of the two hat-shaped fireproof plates which are adhered to the two sides of the same beam.
According to foretell technical scheme, for prior art, the utility model discloses following beneficial effect has:
the utility model adopts an adhesive mode to bond the fireproof plate with the hat-shaped structure between two adjacent crossbeams of the bottom bearing frame formed by welding carbon steel, therefore, the whole fireproof plate is formed by splicing a plurality of hat-shaped fireproof plates bonded on the crossbeams; simultaneously, also can link into an integrated entity through the mode that bonds between floor and the crossbeam to set up winter protection heat preservation (winter protection insulation material) between the top surface of floor and cap shape PLASTIC LAMINATED, consequently, structural design reduce automobile body welded work load (the main reason lies in that the PLASTIC LAMINATED bonds on the crossbeam after being made by corrosion resistant plate in advance) under the prerequisite that satisfies structure fire prevention requirement, reduction welding work load that can be very big.
Drawings
FIG. 1: a partial schematic view of a fire floor construction for a rail vehicle underframe;
FIG. 2: the fire-proof plate is arranged on the beam in an adhesive structure;
in the figure: 1-floor cloth; 2-floor board; 3-cold-proof heat-insulating layer; 4-fire-proof plate; 5-a bottom load-bearing frame; 6-a cross beam; 7-adhesive.
Detailed Description
In order to make the purpose and technical solution of the embodiments of the present invention clearer, the following description will clearly and completely describe the technical solution of the embodiments of the present invention by combining the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.
As shown in figure 1, the whole underframe structure for the underframe fireproof floor structure of the railway vehicle comprises a bottom bearing frame 5, a fireproof plate 4, a cold-proof heat-preservation layer 3, a floor 2 and floor cloth 1. Wherein:
bottom bearing frame, wholly adopt carbon steel (square steel) welding to form, carbon steel itself can tolerate the high temperature more than 1000 degrees, for chassis fire proof plate structure's fire behavior provide the basis, include: the frame comprises a rectangular outer frame and a plurality of cross beams 6 which are transversely arranged in the rectangular outer frame along the length extending direction of the rectangular outer frame; in order to improve the cold-proof and heat-insulating performance of the beam, the utility model discloses can be in advance filled with cold-proof materials such as ceramic fiber in the beam.
For having fire behavior between the two adjacent crossbeams, the utility model discloses set up the PLASTIC LAMINATED that is the cap shape between two adjacent crossbeams that the top is down, the both sides wall centre gripping of this cap shape PLASTIC LAMINATED is between two adjacent crossbeams, and two borders of cap shape PLASTIC LAMINATED adopt adhesive 7 (can choose adhesive Sika221FR for use) to correspond the gluing with the upper surface of two adjacent crossbeams respectively and glue as an organic whole, and the top of cap shape PLASTIC LAMINATED is located the top of the lower surface of crossbeam. For the bonding ability between the border that improves cap-shaped PLASTIC LAMINATED and the crossbeam, can also vacate sufficient blank space simultaneously and bond the floor on the crossbeam, two borders 44 of cap-shaped PLASTIC LAMINATED all be zigzag 42/43 setting, and the sawtooth dislocation set at two borders of cap-shaped PLASTIC LAMINATED, cause on same root crossbeam, have clearance 61 between the border sawtooth of two cap-shaped PLASTIC LAMINATED that both sides bonded. The gap 61 passes through the direct sticky position of adhesive as floor and crossbeam, and on same crossbeam, the clearance that has between the border saw tooth of two cap-shaped PLASTIC LAMINATED that both sides bonded can enclose into a space that can not be excessive for hold quantitative adhesive, can improve adhesive property between floor and the crossbeam on the one hand, on the other hand also can be convenient for the bonding operation of floor and crossbeam. In addition, the edge of the fireproof plate is arranged to be in a sawtooth shape, so that the bonding adhesive force between the adhesive and the cross beam at the edge of the fireproof plate can be improved.
The PLASTIC LAMINATED be the stainless steel board of bending, wholly bond after the preprocess has been good, reduced weldment work volume, can satisfy the structure fire prevention requirement moreover. The shape of the stainless steel fireproof plate is flexible and changeable, the stainless steel fireproof plate can adapt to a vehicle body frame structure, the cap-shaped bonding installation can save the installation time, and the reliability is high.
The floor can be a phenolic aldehyde foaming floor and is connected with each beam in an adhesive mode; and a cold-proof heat-insulating layer made of cold-proof heat-insulating material is arranged between the floor and the top of the hat-shaped fireproof plate, and the thickness of the cold-proof heat-insulating material can be adjusted as required. The shape of the floor can be adapted to the shape of the vehicle body structure.
In conclusion, it can be known that, the vehicle chassis fireproof floor structure, as shown in fig. 2, the fireproof plate is glued on the chassis beam, the sound insulation and heat insulation effects are good, and the sound insulation and heat insulation optimization can be realized by adjusting the thickness of the floor. The entire chassis may meet the ASTM E119 structural 15 minute fire protection requirement.
In order to obtain the above-mentioned vehicle underframe fireproof floor structure, the utility model discloses a following manufacturing method, including following step:
(1) welding and assembling square steel which forms the whole bottom bearing frame and is filled with ceramic fibers in advance into the bottom bearing frame in a welding mode;
(2) placing a hat-shaped stainless steel plate which is formed by bending a stainless steel plate in advance between two cross beams, wherein the top of the hat-shaped stainless steel plate faces downwards, and then connecting the edge of the hat-shaped stainless steel plate and the upper parts of the cross beams into a whole in a gluing mode;
(3) a cold-proof heat-insulating layer made of ceramic fiber is arranged above the hat-shaped stainless steel plate, and the cold-proof heat-insulating layer can fill and level up the groove (namely the convex top of the hat-shaped fireproof plate) of the hat-shaped stainless steel plate;
(4) a floor is arranged above the cold-proof heat-insulating layer, and the floor and the cross beam can be connected into a whole in an adhesive manner, so that the cold-proof heat-insulating layer can be filled between the floor and the stainless steel plate;
(5) finishing the laying of the floor cloth above the floor.
The above description is only for the embodiments of the present invention, and the description is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes and modifications can be made, which all fall within the scope of the present invention.
Claims (7)
1. A fireproof floor structure for a rail vehicle underframe comprises a bottom bearing frame and a floor paved on the bottom bearing frame; it is characterized in that the whole bottom bearing frame is formed by welding carbon steel and comprises: the rectangular outer frame and the plurality of cross beams are transversely arranged in the rectangular outer frame along the length extending direction of the rectangular outer frame;
a hat-shaped fireproof plate with the top facing downwards is arranged between every two adjacent cross beams; the two side walls of the hat-shaped fireproof plate are clamped between two adjacent cross beams, the two edges of the hat-shaped fireproof plate are respectively glued with the upper surfaces of the two adjacent cross beams into a whole correspondingly, and the top of the hat-shaped fireproof plate is positioned above the lower surfaces of the cross beams;
the floor is connected with each cross beam in an adhesive mode; and a cold-proof heat-insulating material is arranged between the floor and the hat-shaped fireproof plate.
2. The fire resistant floor structure for a railway vehicle underframe according to claim 1, wherein the fire resistant plate is prefabricated using stainless steel plate.
3. The fire-proof floor structure for the underframe of railway vehicles as claimed in claim 1 or 2, wherein the cold-proof thermal insulation material is ceramic fiber.
4. The fire floor structure for the underframe of railway vehicle as claimed in claim 1 or 2, wherein the surface of the floor is laid with floor cloth.
5. The fire floor structure for the underframe of railway vehicles as claimed in claim 1 or 2, wherein both edges of the hat-shaped fire-proof plate are respectively adhered to the upper surfaces of the two adjacent cross members by the corresponding adhesive Sika221 FR.
6. The fire floor structure for a railway vehicle underframe according to claim 1 or 2, characterized in that the bottom load-bearing frame is square steel with ceramic fibers inside.
7. The fire floor structure for the underframe of railway vehicles as claimed in claim 1 or 2, wherein both edges of the hat-shaped fire-proof plate are arranged in a zigzag manner, and the sawteeth of both edges of the hat-shaped fire-proof plate are arranged in a staggered manner; gaps are reserved between the sawteeth at the edges of the two hat-shaped fireproof plates which are adhered to the two sides of the same beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921618317.6U CN210882111U (en) | 2019-09-26 | 2019-09-26 | Fireproof floor structure for underframe of railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921618317.6U CN210882111U (en) | 2019-09-26 | 2019-09-26 | Fireproof floor structure for underframe of railway vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210882111U true CN210882111U (en) | 2020-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921618317.6U Active CN210882111U (en) | 2019-09-26 | 2019-09-26 | Fireproof floor structure for underframe of railway vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210882111U (en) |
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2019
- 2019-09-26 CN CN201921618317.6U patent/CN210882111U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 69 Mengxi Road, Wuhu Economic and Technological Development Zone, Wuhu City, Anhui Province, 241000 Patentee after: CRRC Puzhen Alstom Transportation System Co.,Ltd. Address before: No. 69 Mengxi Road, Wuhu Economic and Technological Development Zone, Wuhu City, Anhui Province, 241000 Patentee before: CRRC PUZHEN BOMBARDIER TRANSPORTATION SYSTEMS CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder |