CN111661084B - A rail vehicle and a car body skirt thereof - Google Patents
A rail vehicle and a car body skirt thereof Download PDFInfo
- Publication number
- CN111661084B CN111661084B CN202010674215.7A CN202010674215A CN111661084B CN 111661084 B CN111661084 B CN 111661084B CN 202010674215 A CN202010674215 A CN 202010674215A CN 111661084 B CN111661084 B CN 111661084B
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- shaft hole
- skirt
- skin
- outer skin
- rail vehicle
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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
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention relates to a rail vehicle and a vehicle body apron board of the rail vehicle, wherein the vehicle body apron board of the rail vehicle comprises an apron board body, the apron board body is made of integrally formed carbon fiber composite materials, the apron board body comprises an outer skin, an inner skin, a shaft hole part and a stud group, the shaft hole part and the stud group are arranged between the outer skin and the inner skin, the stud group can form a multi-cavity structure between the outer skin and the inner skin, and the shaft hole part is arranged at one side end part of the multi-cavity structure. The car body skirt board can meet the requirements of rigidity, strength and service life, and meanwhile, the light-weight target 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 skirtboard thereof.
Background
In order to reduce running resistance and noise of the railway vehicle, a 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 position under the vehicle and the like.
The existing car body skirtboard mainly comprises three types, namely a lightweight car body skirtboard made of aluminum alloy materials, a car body skirtboard with a plate rib structure, and a car body skirtboard with a sandwich structure. The first and second car body skirtboards can meet the requirements of rigidity, strength, impact, fire prevention and service life, but are large in weight, so that the lightweight target is not realized, and the car body skirtboard with the third sandwich structure has the problems that a core material is sensitive to moisture, the interface connection strength between the core material and a skin is not high or the compression strength of the core material is limited, the formed skin is low in mechanical property, so that the skin is damaged, and the service life is influenced.
Therefore, how to provide a car body skirt board of a railway car, which can meet the requirements of rigidity, strength and service life, and can realize the light weight target at the same time, is a technical problem required to be solved by the person skilled in the art.
Disclosure of Invention
The invention aims to provide a railway vehicle and a vehicle body skirt 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 problems, the invention provides a car body apron board of a railway car, which comprises an apron board body, wherein the apron board body is made of integrally formed carbon fiber composite materials, the apron board body comprises an outer skin, an inner skin, a shaft hole part and a stud group, the shaft hole part and the stud group are arranged between the outer skin and the inner skin, the stud group can form a multi-cavity structure between the outer skin and the inner skin, and the shaft hole part is positioned at one side end part of the multi-cavity structure.
The material of this skirtboard body is rigidity big, the high carbon fiber composite of lightweight, can lighten weight when guaranteeing structural strength, is convenient for realize the lightweight target to, because carbon fiber composite is insensitive to steam, no pre-buried metalwork and core, no compatible problem in interface, thereby can guarantee the life of this automobile body skirtboard, satisfy the service life requirement.
The vertical ribs, the shaft hole part, the outer skin and the inner skin are integrally formed, and the integrally formed structure can simplify the manufacturing process, improve the production efficiency and reduce the cost. In addition, compared with a process of secondary assembly forming, the integrated structure can ensure the connection stability among all the parts of the skirt board body, further ensure the integral structural strength of the skirt board body and ensure the service life of the skirt board body.
Optionally, the stud group includes a plurality of i-shaped reinforcing ribs arranged in parallel at intervals.
Optionally, the i-shaped reinforcing rib comprises two reinforcing members with a C-shaped structure and a vertical rib plate clamped between the two reinforcing members, and the opening directions of the two reinforcing members are opposite.
Optionally, the ply direction/proportion of the outer skin is 0 °/28%, ±45 °/44%,90 °/28%, and the ply direction/proportion of the inner skin is 0 °/21.5%, ±45 °/57%,90 °/21.5%.
Optionally, the outer skin and the inner skin include a carbon fiber prepreg layer, a glass fiber prepreg layer, a basalt prepreg layer, and a fireproof layer that are sequentially disposed, and the fireproof layer is located on an outer side wall of the multi-cavity structure.
Optionally, a wear-resistant layer is arranged on the inner wall of the shaft hole part.
Optionally, a thickened area is further provided in the middle of the outer skin or the inner skin, and the thickened area is formed in the multi-cavity structure.
Optionally, two end seals are also included, both of which are 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, which faces to the shaft hole part, and one side end of the multi-cavity structure, which is far away from the shaft hole part.
Optionally, a skirt attachment is also included, the skirt attachment secured to the multichamber structure by a fastener, the skirt attachment including at least one of a latch lock, a damper window, and a guide block.
The invention also provides a railway vehicle comprising a vehicle body apron as described above.
The technical effects of the rail vehicle with the vehicle body skirt board are similar to those of the vehicle body skirt board, and the description is omitted herein for saving space.
Drawings
FIG. 1 is a schematic view of a structure of a body skirt of a railway vehicle according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of the skirt body and end seal;
FIG. 3 is a cross-sectional view of the skirt body;
FIG. 4 is a schematic view of the layering configuration of the apron body;
Fig. 5 is a partial enlarged view of fig. 4.
In fig. 1-5, the reference numerals are as follows:
1-outer skin, 2-inner skin, 3-shaft hole part, 41-I-shaped reinforcing ribs, 42-reinforcing pieces, 43-vertical ribs, 5-multi-cavity structure, 51-cavity, 6-thickened area, 7-end sealing piece, 8-sealing groove and 9-guide block.
Detailed Description
In order to make the technical solution 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 to 5, fig. 1 is a schematic structural view of a body skirt of a rail vehicle according to an embodiment of the present invention, fig. 2 is a schematic structural view of a skirt body and an end seal, fig. 3 is a cross-sectional view of the skirt body, fig. 4 is a schematic layering structure of the skirt body, and fig. 5 is a partially enlarged view of fig. 4.
The embodiment of the invention provides a rail vehicle and a vehicle body apron board of the rail vehicle, wherein the rail vehicle comprises the vehicle body apron board, and particularly the vehicle body apron board in the embodiment comprises an apron board body, and particularly the apron board body is made of integrally formed carbon fiber composite materials, as shown in fig. 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 positioned at one side end part of the multi-cavity structure 5.
Specifically, the material of this skirtboard body is rigidity is big, the high carbon fiber composite of lightweight, can lighten weight when guaranteeing structural strength, is convenient for realize the lightweight target to, because carbon fiber 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 group, the shaft hole 3, the outer skin 1 and the inner skin 2 are integrally formed, and the concrete layering is shown in fig. 4, so that the integral forming can simplify the manufacturing process, improve the production efficiency and reduce the cost. In addition, compared with a process of secondary assembly forming, the integrated structure can ensure the connection stability among all the parts of the skirt board body, further ensure the integral structural strength of the skirt board body and ensure the service life of the skirt board body.
In the above embodiment, the stud group includes a plurality of i-shaped reinforcing ribs 41 arranged in parallel at intervals, and a cavity is formed between two adjacent reinforcing ribs. Of course, in this embodiment, the specific structure of each stiffener of the stud set is not limited, for example, it may be configured as a partition between the outer skin 1 and the inner skin 2, and the i-shaped stiffener 41 may be configured to increase the contact area between the end of the stiffener and the skin during 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 interposed between the two reinforcing members 42. The setting can simplify the molding process of the multi-cavity structure 5, specifically, when the multi-cavity structure 5 is prepared, prepreg needs to be paved on two sides of the outer wall of a core mold, after the paving is completed, the prepreg can respectively form a C-shaped structure wrapping the outer wall of the core mold at two side ends of the core mold, then each core mold is arranged side by side, the opening directions of the C-shaped structures of two adjacent core molds are opposite and clamp a vertical rib plate 43, then the outer skin and the inner skin are respectively paved on two side end surfaces of each core mold, after the skin is paved, a lower mold is placed, then an upper mold is closed, the core mold is pulled out, and vacuumizing solidification is performed after the core mold is pulled out, so that the setting of the vertical rib plate 43 can provide support for the two C-shaped structures, and deformation can not occur in the vacuumizing solidification process.
In the above-described embodiments, the ply direction/ratio of the outer skin 1 is 0 °/28%, ±45 °/44%,90 °/28%, and the ply direction/ratio of the inner skin 2 is 0 °/21.5%, ±45 °/57%,90 °/21.5%. Simulation calculation and test summarization show that the structural strength of the vehicle body skirtboard 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 include a carbon fiber prepreg layer, a glass fiber prepreg layer, a basalt prepreg layer, and a fireproof layer, which are sequentially disposed. Wherein the fire-proof layer is located the lateral wall of multicavity structure 5, that is to say, the one side wall that outer skin 1 kept away from interior skin 2 and one side wall that interior skin 2 kept away from outer skin 1 all are equipped with basalt prepreg and fire-proof layer, and wherein, basalt prepreg can promote the wearability of this automobile body skirtboard to guarantee its life, and the fire-proof performance of this automobile body skirtboard can be guaranteed to the setting of fire-proof layer, improves the security.
Likewise, in this embodiment, the inner wall of the shaft hole 3 is also provided with the wear-resistant layer, and because the shaft hole of the shaft hole 3 needs to be matched with the rotating shaft and rotates relative to the rotating shaft, the wear-resistant layer is arranged on the inner wall of the shaft hole, so that the wear-resistant performance of the inner wall of the shaft hole can be improved, the service life of the shaft hole 3 is ensured, and the service life of the skirt board of the vehicle body is further ensured. In particular, 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 portion of the outer skin 1 or the inner skin 2 is further provided with a thickened area 6, wherein "middle portion" means a middle position in the middle area of the multi-cavity structure 5, not strictly measured from a dimensional angle, the multi-cavity structure 5 includes a plurality of cavities 51, the thickness of the outer skin 1 or the inner skin 2 at the middle cavity 51 is larger than the thickness of the outer skin 1 or the inner skin 2 at the end cavity 51, and the thickened area 6 is located in the multi-cavity structure 5, so that the outer surface structure of the skirt panel body is flat 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, so as to seal each cavity 51 of the multi-cavity structure 5 from the two ends, and prevent water and dust from entering the cavity 51 to affect the service life of the vehicle body skirt. In particular, in order to further secure 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 side end of the multichamber structure 5 facing the shaft hole 3 and the side end of the multichamber structure facing away from the shaft hole 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 skirting board of the vehicle body and other surrounding structures during installation.
In the above embodiment, the vehicle body skirt further includes a skirt attachment, specifically, the skirt attachment is fixed to the multichamber structure 5 by a fastener, and the skirt attachment includes at least one of a latch, a damper window, and a guide block 9 (metal material). Connection is realized through the fastener, the dismouting operation of being convenient for to when the skirtboard annex takes place to damage, be convenient for realize changing, the flexibility is good.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (7)
1. The car body apron board of the railway car is characterized by comprising an apron board body, wherein the apron board body is made of integrally formed carbon fiber composite materials;
The skirting board body comprises an outer skin (1), an inner skin (2), a shaft hole part (3) and a stud group, wherein the shaft hole part (3) 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 positioned at one side end part of the multi-cavity structure (5);
the vertical rib group comprises a plurality of I-shaped reinforcing ribs (41) which are arranged in parallel at intervals;
the I-shaped reinforcing rib (41) comprises two reinforcing pieces (42) with C-shaped structures and a vertical rib plate (43) clamped between the two reinforcing pieces (42), and the opening directions of the two reinforcing pieces (42) are opposite;
the layering direction/proportion of the outer skin (1) is 0 degree/28 percent, 45 degree/44 percent and 90 degree/28 percent, and the layering direction/proportion of the inner skin (2) is 0 degree/21.5 percent, 45 degree/57 percent and 90 degree/21.5 percent;
The middle part of the outer skin (1) or the inner skin (2) is also provided with a thickening area (6), and the thickening area (6) is formed in the multi-cavity structure (5).
2. The body skirt of a rail vehicle according to claim 1, characterized in that the outer skin (1) and the inner skin (2) comprise a carbon fiber prepreg layer, a glass fiber prepreg layer, a basalt prepreg layer and a fire protection layer arranged in this order, the fire protection layer being located on the outer side wall of the multi-cavity structure (5).
3. The body skirt of a rail vehicle according to claim 1, characterized in that the inner wall of the shaft hole part (3) is provided with a wear-resistant layer.
4. The body skirt of a rail vehicle according to claim 1, further comprising two end seals (7), both end seals (7) being sealed to both ends of the multichamber structure (5) by means of adhesive bonding.
5. The body skirt of a rail vehicle according to claim 1, characterized in that the side of the multichamber structure (5) facing the shaft hole (3) and the side facing away from the shaft hole (3) are each also provided with a sealing groove (8) for mounting a sealing element.
6. The body skirt of a railway vehicle according to claim 1, further comprising a skirt attachment secured to the multichamber structure (5) by fasteners, the skirt attachment comprising at least one of a latch lock, a damper window and a guide block (9).
7. A rail vehicle comprising a body skirt as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010674215.7A CN111661084B (en) | 2020-07-14 | 2020-07-14 | A rail vehicle and a car body skirt thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010674215.7A CN111661084B (en) | 2020-07-14 | 2020-07-14 | A rail vehicle and a car body skirt thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111661084A CN111661084A (en) | 2020-09-15 |
| CN111661084B true CN111661084B (en) | 2025-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010674215.7A Active CN111661084B (en) | 2020-07-14 | 2020-07-14 | A rail vehicle and a car body skirt thereof |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112454939B (en) * | 2020-10-27 | 2023-01-03 | 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 |
| CN115771535A (en) * | 2021-09-07 | 2023-03-10 | 中车唐山机车车辆有限公司 | An equipment cabin skirt and a 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 | Skirt assembly and rail vehicle |
| CN116811931A (en) * | 2023-06-30 | 2023-09-29 | 中车青岛四方机车车辆股份有限公司 | Cab and railway vehicle |
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| CN109263156A (en) * | 2018-09-26 | 2019-01-25 | 航天材料及工艺研究所 | A kind of rail traffic vehicles car body apron board structure and its forming method |
| CN210590661U (en) * | 2019-09-12 | 2020-05-22 | 常州市新创智能科技有限公司 | Rail transit equipment cabin skirtboard forming die |
| CN212289834U (en) * | 2020-07-14 | 2021-01-05 | 中车青岛四方机车车辆股份有限公司 | A rail vehicle and its body skirt |
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| JP2006298327A (en) * | 2005-04-25 | 2006-11-02 | Tokyu Car Corp | Railway vehicle body structure |
| US7578541B2 (en) * | 2005-11-29 | 2009-08-25 | Brian Layfield | Trailer skirt panel |
| US20110233960A1 (en) * | 2010-03-24 | 2011-09-29 | Richard Heinz | Aerodynamic skirts for truck trailers |
| CN102529113B (en) * | 2011-12-27 | 2014-04-09 | 成都飞机工业（集团）有限责任公司 | Filling method of corner gaps of composite material component |
| CN107553997B (en) * | 2017-08-18 | 2019-11-12 | 航天材料及工艺研究所 | A rail transit vehicle body skirt plate structure and forming method thereof |
| CN209426772U (en) * | 2018-12-21 | 2019-09-24 | 常州市新创智能科技有限公司 | A kind of apron board of rail car equipment cabin |
| CN110341209B (en) * | 2019-07-30 | 2020-05-22 | 中南大学 | A kind of molding method of thermoplastic composite material I-shaped reinforced member |
| CN111113940A (en) * | 2020-01-02 | 2020-05-08 | 中车青岛四方机车车辆股份有限公司 | A composite material layered profile structure and its forming process |
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2020
- 2020-07-14 CN CN202010674215.7A patent/CN111661084B/en active Active
Patent Citations (4)
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| CN102963009A (en) * | 2012-12-11 | 2013-03-13 | 成都飞机工业（集团）有限责任公司 | Composite material multi-cavity structure piece manufacturing method |
| CN109263156A (en) * | 2018-09-26 | 2019-01-25 | 航天材料及工艺研究所 | A kind of rail traffic vehicles car body apron board structure and its forming method |
| CN210590661U (en) * | 2019-09-12 | 2020-05-22 | 常州市新创智能科技有限公司 | Rail transit equipment cabin skirtboard forming die |
| CN212289834U (en) * | 2020-07-14 | 2021-01-05 | 中车青岛四方机车车辆股份有限公司 | A rail vehicle and its body skirt |
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| CN111661084A (en) | 2020-09-15 |
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