CN111661084A - Rail vehicle and vehicle body apron board thereof - Google Patents
Rail vehicle and vehicle body apron board thereof Download PDFInfo
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- CN111661084A CN111661084A CN202010674215.7A CN202010674215A CN111661084A CN 111661084 A CN111661084 A CN 111661084A CN 202010674215 A CN202010674215 A CN 202010674215A CN 111661084 A CN111661084 A CN 111661084A
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- vehicle body
- skin
- railway vehicle
- shaft hole
- outer skin
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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
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- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention relates to a railway vehicle and a vehicle body apron board of the railway vehicle, wherein the vehicle body apron board of the railway vehicle comprises an apron board body, and the apron board body is made of an integrally formed carbon fiber composite material; the apron board body comprises an outer skin, an inner skin, and an axial hole part and a stud group which are arranged between the outer skin and the inner skin, wherein the stud group can form a multi-cavity structure between the outer skin and the inner skin, and the axial hole part is positioned at one side end part of the multi-cavity structure. The skirtboard of the vehicle body can meet the requirements on rigidity, strength and service life, and meanwhile, the aim of light weight can be achieved.
Description
Technical Field
The invention relates to the technical field of railway vehicles, in particular to a railway vehicle and a vehicle body apron board thereof.
Background
In order to reduce the running resistance and noise of the rail vehicle, the skirt board is arranged on the side part of the vehicle body, and the skirt board has the functions of resisting snow and ice, preventing sundries from impacting and damaging equipment under the vehicle, preventing dirt and rain and snow from accumulating at the part under the vehicle and the like.
The prior vehicle body skirt board mainly comprises three types, wherein the first type is the vehicle body skirt board made of lightweight aluminum alloy materials, the second type is the vehicle body skirt board with a plate rib structure, and the third type is the vehicle body skirt board with a sandwich structure. The first and second vehicle body skirtboards can meet the requirements of rigidity, strength, impact, fire resistance and service life, but have larger weight and are not beneficial to realizing the aim of light weight; the third sandwich structure of the vehicle body apron board has the problems that the core material is sensitive to moisture, the interface connection strength between the core material and the skin is not high, or the mechanical property of the formed skin is low due to the limitation of the compressive strength of the core material, so that the skin is damaged and the like, and the service life is influenced.
Therefore, how to provide a body skirt of a railway vehicle, which can meet the requirements of rigidity, strength and service life and can achieve the aim of light weight, is a technical problem to be solved by the technical personnel in the field.
Disclosure of Invention
The invention aims to provide a railway vehicle and a vehicle body apron board of the railway vehicle, which can meet the requirements of rigidity, strength and service life and can realize the aim of light weight.
In order to solve the technical problem, the invention provides a vehicle body apron board of a railway vehicle, which comprises an apron board body, wherein the apron board body is made of an integrally formed carbon fiber composite material; the apron board body comprises an outer skin, an inner skin, and an axial hole part and a stud group which are arranged between the outer skin and the inner skin, wherein the stud group can form a multi-cavity structure between the outer skin and the inner skin, and the axial hole part is positioned at one side end part of the multi-cavity structure.
The material of this skirtboard body is the carbon-fibre composite that rigidity is big, the lightweight is high, can lighten weight when guaranteeing structural strength, is convenient for realize lightweight target to, because carbon-fibre composite is insensitive to steam, no pre-buried metalwork and core, no interface compatibility problem, thereby can guarantee the life of this automobile body skirtboard, satisfy the service life requirement.
The stud group, the shaft hole part, the outer skin and the inner skin are integrally formed, so that the manufacturing process can be simplified, the production efficiency can be improved, and the cost can be reduced. In addition, integrated into one piece's structure compares in through the fashioned technology of secondary assembly, can guarantee the connection stability between each part of this skirtboard body, and then guarantees the overall structure intensity of this skirtboard body, guarantees its life.
Optionally, the stud set includes a plurality of spaced and juxtaposed i-shaped reinforcing ribs.
Optionally, the i-shaped reinforcing rib comprises two reinforcing members in a C-shaped structure and a stud plate clamped between the two reinforcing members, and the opening directions of the two reinforcing members are opposite.
Optionally, the ply direction/ratio of the outer skin is: 0 degree/28%, 45 degrees/44%, 90 degrees/28%; the paving direction/proportion of the inner skin is as follows: 0 °/21.5%, ± 45 °/57%, 90 °/21.5%.
Optionally, the outer skin and the inner skin comprise a carbon fiber prepreg layer, a glass fiber prepreg layer, a basalt prepreg layer and a fire-proof layer, which are sequentially arranged, and the fire-proof layer is located on an outer side wall of the multi-cavity structure.
Optionally, the inner wall of the shaft hole part is provided with a wear-resistant layer.
Optionally, a thickened area is further disposed in the middle of the outer skin or the inner skin, and the thickened area is formed in the multi-cavity structure.
Optionally, the multi-lumen structure further comprises two end seals, the two end seals being sealed to both ends of the multi-lumen structure by bonding.
Optionally, a sealing groove for installing a sealing element is further respectively arranged at one side end of the multi-cavity structure facing the shaft hole part and one side end of the multi-cavity structure far away from the shaft hole part.
Optionally, an apron attachment is included, the apron attachment being secured to the multi-chamber structure by a fastener, the apron attachment including at least one of a latch lock, a register, and a guide block.
The invention also provides a railway vehicle which comprises the vehicle body apron board.
The technical effect of the railway vehicle with the vehicle body skirt board is similar to that of the vehicle body skirt board, and is not repeated herein for saving space.
Drawings
FIG. 1 is a schematic structural diagram of a vehicle body skirt board of a railway vehicle provided by an embodiment of the invention;
FIG. 2 is a schematic structural view of the skirt body and end seal;
figure 3 is a cross-sectional view of the apron body;
FIG. 4 is a schematic view of a ply structure of the skirt body;
fig. 5 is a partially enlarged view of fig. 4.
In the accompanying fig. 1-5, the reference numerals are illustrated as follows:
1-an outer skin; 2-inner skin; 3-the shaft hole part; 41-I-shaped reinforcing ribs, 42-reinforcing parts and 43-vertical rib plates; 5-multi-cavity structure, 51-cavity; 6-thickened area; 7-end seal; 8-sealing groove; 9-guide block.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-5, fig. 1 is a schematic structural diagram of a body skirt of a rail vehicle according to an embodiment of the present invention; FIG. 2 is a schematic structural view of the skirt body and end seal; figure 3 is a cross-sectional view of the apron body; FIG. 4 is a schematic view of a ply structure of the skirt body; fig. 5 is a partially enlarged view of fig. 4.
The invention provides a railway vehicle and a vehicle body apron board of the railway vehicle, wherein the railway vehicle comprises the vehicle body apron board, specifically, the vehicle body apron board in the embodiment comprises an apron board body, specifically, the apron board body is made of an integrally formed carbon fiber composite material, as shown in figures 1-3, the apron board body comprises an outer skin 1, an inner skin 2, a shaft hole part 3 and a stud group, wherein the stud group and the shaft hole part 3 are integrally formed between the outer skin 1 and the inner skin 2, the stud group forms a multi-cavity structure 5 between the outer skin 1 and the inner skin 2, and the shaft hole part 3 is located at one side end part of the multi-cavity structure 5.
Specifically, the material of this skirtboard body is the carbon-fibre composite that rigidity is big, lightweight is high, can lighten weight when guaranteeing structural strength, is convenient for realize the lightweight target to, because carbon-fibre composite is insensitive to steam, no pre-buried metalwork and core, no interface compatibility problem, thereby can guarantee the life of this automobile body skirtboard, satisfy the service life requirement.
In this embodiment, the stud sets and the shaft hole portions 3 are integrally formed with the outer skin 1 and the inner skin 2, and the concrete lay-up is shown in fig. 4. In addition, integrated into one piece's structure compares in through the fashioned technology of secondary assembly, can guarantee the connection stability between each part of this skirtboard body, and then guarantees the overall structure intensity of this skirtboard body, guarantees its life.
In the above embodiment, the set of studs includes a plurality of i-shaped studs 41 arranged side by side at intervals, and a cavity is formed between two adjacent studs. Of course, in this embodiment, the specific structure of each stiffener of the stud set is not limited, and for example, the stiffener may also be configured as a partition plate located between the outer skin 1 and the inner skin 2, and the arrangement of the i-shaped stiffener 41 can increase the contact area between the end of the stiffener and the skin in the laying process, so as to ensure the connection stability between each stiffener of the stud set and the skin.
Further, as shown in fig. 5, the i-shaped reinforcing rib 41 includes two reinforcing members 42 having a C-shaped structure and a stud plate 43, the opening directions of the two reinforcing members 42 are opposite, and the stud plate 43 is sandwiched between the two reinforcing members 42. By the arrangement, the forming process of the multi-cavity structure 5 can be simplified, and specifically, when the multi-cavity structure 5 is prepared, prepreg is laid on two sides of the outer wall of the core mold, after the prepreg is laid, the prepreg can form a C-shaped structure wrapping the outer wall of the core mold at two side ends of the core mold respectively, then the core molds are arranged side by side, the opening directions of the C-shaped structures of two adjacent core molds are opposite, a vertical rib plate 43 is clamped, then an outer skin and an inner skin are laid on two side end faces of each core mold respectively, after the skins are laid, the lower mold is placed, the upper mold is closed, the core mold is drawn out, and vacuumizing curing is performed, that is, vacuumizing curing is performed after the core molds are drawn out, so that the vertical rib plate 43 can provide support for the two C-shaped structures, and the condition that deformation cannot occur in the vacuumizing curing process is ensured.
In the above embodiment, the ply direction/ratio of the outer skin 1 is: 0 degree/28%, 45 degrees/44%, 90 degrees/28%; the ply direction/proportion of the inner skin 2 is as follows: 0 °/21.5%, ± 45 °/57%, 90 °/21.5%. As can be known from simulation calculation and experimental summary, the structural strength of the vehicle body apron board can reach the optimal effect by paving the outer skin 1 and the inner skin 2 according to the paving direction/proportion, and the overall structural strength is ensured.
In the above embodiment, the materials of the layers of the outer skin 1 and the inner skin 2 are the same, and the layers include a carbon fiber prepreg layer, a glass fiber prepreg layer, a basalt prepreg layer and a fire-proof layer which are sequentially arranged. Wherein, the flame retardant coating is located the lateral wall of multicavity structure 5, that is to say, a lateral wall that interior skin 2 was kept away from to outer skin 1 and a lateral wall that exterior skin 1 was kept away from to interior skin 2 all are equipped with basalt preimpregnation material and flame retardant coating, and wherein, basalt preimpregnation material can promote the wearability of this automobile body skirtboard to guarantee its life, and the setting of flame retardant coating can guarantee the fire behavior of this automobile body skirtboard, improves the security.
Similarly, in this embodiment, also be equipped with the wearing layer at the shaft hole inner wall of shaft hole portion 3, because the shaft hole of shaft hole portion 3 need with the pivot cooperation and with the pivot between take place relative rotation, and set up the wearing layer at the inner wall in shaft hole and can promote the wear resistance of this shaft hole inner wall, guarantee this shaft hole portion 3's life, and then guarantee this automobile body skirtboard's life. Specifically, in this embodiment, the specific material of the wear-resistant layer is not limited, and may be, for example, a basalt prepreg layer.
In the above embodiment, as shown in fig. 3, the middle of the outer skin 1 or the inner skin 2 is further provided with a thickened area 6, wherein "middle" refers to a middle region located in the multi-cavity structure 5, not a strict middle position taken from a size angle, the multi-cavity structure 5 comprises a plurality of cavities 51, the thickness of the outer skin 1 or the inner skin 2 located at the middle cavities 51 is greater than that of the outer skin 1 or the inner skin 2 located at the end cavities 51, and the thickened area 6 is located in the multi-cavity structure 5, so that the outer surface structure of the apron body can be flattened while the overall structural strength is ensured.
In the above embodiment, as shown in fig. 2, the vehicle body skirt further includes two end seals 7, and the two end seals 7 are respectively fixed to two ends of the multi-cavity structure 5 by bonding to seal each cavity 51 of the multi-cavity structure 5 from the two ends, so as to prevent water, dust, and the like from entering the interior of the cavity 51 and affecting the service life of the vehicle body skirt. Specifically, in order to further ensure the mounting stability between the end seal 7 and the apron body, the end seal 7 and the apron body may be further fixed by caulking.
In the above embodiment, as shown in fig. 3 and 4, the end of the multi-cavity structure 5 facing the shaft hole portion 3 and the end of the multi-cavity structure 5 facing away from the shaft hole portion 3 are further provided with sealing grooves 8 respectively, and the sealing grooves 8 are used for installing sealing elements so as to realize sealing between the vehicle body skirt and other surrounding structures when being installed.
In the above embodiment, the vehicle body skirt further comprises a skirt accessory, in particular, the skirt accessory is fixed to the multi-chamber structure 5 by a fastener, and the skirt accessory comprises at least one of a latch, a register and a guide block 9 (made of metal). Realize connecting through the fastener, the dismouting operation of being convenient for to when the apron annex takes place to damage, be convenient for realize changing, the flexibility is good.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.
Claims (11)
1. The vehicle body apron board of the railway vehicle is characterized by comprising an apron board body, wherein the apron board body is made of an integrally formed carbon fiber composite material;
the skirtboard body comprises an outer skin (1), an inner skin (2) and a shaft hole part (3) and a stud group, wherein the shaft hole part and the stud group are arranged between the outer skin (1) and the inner skin (2), the stud group can form a multi-cavity structure (5) between the outer skin (1) and the inner skin (2), and the shaft hole part (3) is located at one side end part of the multi-cavity structure (5).
2. The railroad car body skirt according to claim 1, wherein the set of studs comprises a plurality of spaced-apart, juxtaposed i-shaped reinforcing ribs (41).
3. The vehicle body skirt of a railway vehicle according to claim 2, wherein the I-shaped reinforcing rib (41) comprises two C-shaped reinforcing members (42) and a vertical rib plate (43) sandwiched between the two reinforcing members (42), and the two reinforcing members (42) have opposite opening directions.
4. -body panel for a railway vehicle according to any one of claims 1 to 3, characterized in that the ply direction/ratio of the outer skin (1) is: 0 degree/28%, 45 degrees/44%, 90 degrees/28%; the paving direction/proportion of the inner skin (2) is as follows: 0 °/21.5%, ± 45 °/57%, 90 °/21.5%.
5. The panel according to any one of claims 1 to 3, characterised in that the outer skin (1) and the inner skin (2) comprise, in succession, a carbon fibre prepreg layer, a glass fibre prepreg layer, a basalt prepreg layer and a fire protection layer, the fire protection layer being located on the outer side wall of the multilumen construction (5).
6. The vehicle body panel of a railway vehicle according to any one of claims 1 to 3, wherein an inner wall of the shaft hole portion (3) is provided with a wear-resistant layer.
7. The vehicle body panel of a rail vehicle according to any of claims 1-3, characterised in that the middle of the outer skin (1) or the inner skin (2) is further provided with a thickened area (6), which thickened area (6) is formed in the multi-cavity structure (5).
8. -the vehicle body panel of a railway vehicle according to any of claims 1 to 3, characterized in that it further comprises two end seals (7), the two end seals (7) being sealed to both ends of the multichamber structure (5) by gluing.
9. The vehicle body panel of a railway vehicle according to any one of claims 1 to 3, wherein a side end of the multi-chamber structure (5) facing the shaft hole portion (3) and a side end thereof facing away from the shaft hole portion (3) are further provided with a sealing groove (8) for mounting a sealing member, respectively.
10. The railway vehicle body panel according to any one of claims 1 to 3, further comprising an panel attachment, the panel attachment being secured to the multichamber structure (5) by a fastener, the panel attachment comprising at least one of a latch lock, a register window and a guide block (9).
11. A railway vehicle, characterized by comprising a body panel according to any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010674215.7A CN111661084A (en) | 2020-07-14 | 2020-07-14 | Rail vehicle and vehicle body apron board thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010674215.7A CN111661084A (en) | 2020-07-14 | 2020-07-14 | Rail vehicle and vehicle body apron board thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111661084A true CN111661084A (en) | 2020-09-15 |
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ID=72391949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010674215.7A Pending CN111661084A (en) | 2020-07-14 | 2020-07-14 | Rail vehicle and vehicle body apron board thereof |
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| Country | Link |
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| CN (1) | CN111661084A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112454939A (en) * | 2020-10-27 | 2021-03-09 | 中车青岛四方机车车辆股份有限公司 | Fixing support for installing apron board sealing element, forming process of fixing support and apron board assembly |
| CN114802328A (en) * | 2022-05-20 | 2022-07-29 | 中车青岛四方机车车辆股份有限公司 | Skirtboard subassembly and rail vehicle |
-
2020
- 2020-07-14 CN CN202010674215.7A patent/CN111661084A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112454939A (en) * | 2020-10-27 | 2021-03-09 | 中车青岛四方机车车辆股份有限公司 | Fixing support for installing apron board sealing element, forming process of fixing support and apron board assembly |
| CN114802328A (en) * | 2022-05-20 | 2022-07-29 | 中车青岛四方机车车辆股份有限公司 | Skirtboard subassembly and rail vehicle |
| CN114802328B (en) * | 2022-05-20 | 2024-05-28 | 中车青岛四方机车车辆股份有限公司 | Apron board assembly and rail vehicle |
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