CN105922998B - Rail vehicle pod and rail vehicle - Google Patents
Rail vehicle pod and rail vehicle Download PDFInfo
- Publication number
- CN105922998B CN105922998B CN201610397276.7A CN201610397276A CN105922998B CN 105922998 B CN105922998 B CN 105922998B CN 201610397276 A CN201610397276 A CN 201610397276A CN 105922998 B CN105922998 B CN 105922998B
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- Prior art keywords
- guide sleeve
- air guide
- pod
- rail vehicle
- air
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- 230000007704 transition Effects 0.000 claims abstract description 13
- 238000004378 air conditioning Methods 0.000 claims description 29
- 238000002360 preparation method Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
- B61D17/02—Construction details of vehicle bodies reducing air resistance by modifying contour ; Constructional features for fast vehicles sustaining sudden variations of atmospheric pressure, e.g. when crossing in tunnels
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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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
The present invention provides a kind of rail vehicle pod and rail vehicle, is related to Railway vehicle car roof wind deflector technology.Rail vehicle pod includes: the first pod for being mounted on air-conditioner set region, for being mounted on second pod in pantograph region；Connector is connected between first pod, the second pod；Connector includes: the first connecting pin and second connection end, and the first connecting pin with the first pod for connecting, and second connection end with the second pod for connecting, so that connector connects the first pod, the second pod rounding off.Rail vehicle includes above-mentioned rail vehicle pod.The first pod, the second pod rounding off are connected by connector, realize the smooth transition in air-conditioner set region and pantograph region, there is guiding role to the air between air-conditioner set region and pantograph region, to reduce the air drag at the top of vehicle body of railway vehicle, and reduce the aerodynamic noise at the top of vehicle body of railway vehicle.
Description
Technical Field
The invention relates to the technology of a roof air guide sleeve of a railway vehicle, in particular to an air guide sleeve of a railway vehicle and the railway vehicle.
Background
The air conditioning unit and the pantograph on the top of the vehicle body of the railway vehicle are generally arranged, and when the railway vehicle runs at a high speed, the air conditioning unit and the pantograph on the top of the vehicle body can be in contact with air, so that resistance is generated, and the high-speed running of the railway vehicle is not facilitated.
In the prior art, an air conditioning unit air guide sleeve is usually installed on an air conditioning unit, and a pantograph air guide sleeve is installed on a pantograph. However, since the windward sides of the air conditioning unit air guide sleeve and the pantograph air guide sleeve both generate positive pressure regions and a gap exists between the air conditioning unit air guide sleeve and the pantograph air guide sleeve, air flow at the gap between the air conditioning unit air guide sleeve and the pantograph air guide sleeve is disordered, pressure difference resistance is increased, and large pressure difference resistance and large pneumatic noise are generated.
Disclosure of Invention
In view of the above-mentioned defects in the prior art, the invention provides a railway vehicle air guide sleeve and a railway vehicle, which can reduce the air resistance at the top of the railway vehicle body and reduce the aerodynamic noise at the top of the railway vehicle body.
A first aspect of the invention provides a rail vehicle fairing comprising: a first pod and a second pod; the first air guide sleeve is used for being installed in an air conditioning unit area, and the second air guide sleeve is used for being installed in a pantograph area; a connecting piece is connected between the first air guide sleeve and the second air guide sleeve; the connector includes: the first connecting end is used for being connected with the first air guide sleeve, and the second connecting end is used for being connected with the second air guide sleeve, so that the connecting piece enables the first air guide sleeve and the second air guide sleeve to be in smooth transition connection.
Further, a transition section is connected between the first connecting end and the second connecting end of the connecting piece, and the transition section comprises an inclined plane with a preset first inclination angle.
Furthermore, the first connecting end of the connecting piece is an arc-shaped plate, and the first connecting end is matched with the tail end of the first air guide sleeve facing the second air guide sleeve.
Furthermore, the second connecting end comprises two connecting parts which are oppositely arranged, and the two connecting parts are respectively connected with the two side guide hoods of the second guide hood.
Furthermore, the connecting piece is detachably connected with the first air guide sleeve and the second air guide sleeve respectively.
Furthermore, the second air guide sleeve deviates from the tail end of the first air guide sleeve and extends towards the inner side to form a baffle, and the inner surface of the baffle is an inclined surface.
Further, the inner surface of the baffle and the inner surface of the tail end of the second air guide sleeve form a preset included angle.
Furthermore, grooves are formed in the two side flow guide covers of the second flow guide cover, and the side walls of the grooves are provided with second inclination angles.
Another aspect of the invention provides a rail vehicle comprising a vehicle body, the top of the vehicle body is provided with a rail vehicle air guide sleeve, and the rail vehicle air guide sleeve is arranged on any one of the rail vehicle air guide sleeves.
The air guide sleeve of the railway vehicle and the railway vehicle effectively avoid air flow disorder at a gap between the air guide sleeve of the air conditioning unit and the pantograph air guide sleeve in the prior art, the first air guide sleeve and the second air guide sleeve are connected in a smooth transition mode through the connecting piece, smooth transition of an air conditioning unit area and a pantograph area is achieved, and the air guide sleeve has a guiding effect on air between the air conditioning unit area and the pantograph area, so that air resistance at the top of a vehicle body of the railway vehicle is reduced, and pneumatic noise at the top of the vehicle body of the railway vehicle is reduced.
Drawings
FIG. 1 is a schematic illustration of a railway vehicle fairing according to an embodiment of the invention applied to a railway vehicle;
FIG. 2 is a partial sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic structural view of a connecting member in a guide shell of a railway vehicle according to an embodiment of the invention;
FIG. 4 is a top view of FIG. 3;
fig. 5 is a partial sectional view taken along line B-B of fig. 4.
Wherein,
110-air conditioning unit area; 120-pantograph region;
210-a first pod; 220-a second pod;
221-grooves; 230-a connector;
231-a first connection end; 232-a second connection end;
233-transition section.
Detailed Description
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
The terms "upper", "lower", "left" and "right" are used for describing relative positions of the structures in the drawings, and are only for the sake of clarity, but are not used to limit the scope of the present invention, and changes or adjustments of the relative relationships thereof are also considered to be the scope of the present invention without substantial technical changes.
It should be noted that the terms "first" and "second" in the description of the present invention are used merely for convenience in describing different components, and are not to be construed as indicating or implying a sequential relationship, relative importance, or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
FIG. 1 is a schematic illustration of a railway vehicle fairing according to an embodiment of the invention applied to a railway vehicle; FIG. 2 is a partial sectional view taken along line A-A of FIG. 1; referring to fig. 1-2, the present embodiment provides a guide shell for a rail vehicle, including: a first pod 210 and a second pod 220; the first pod 210 is configured to be mounted to the air conditioning unit area 110, and the second pod 220 is configured to be mounted to the pantograph area 120; a connecting piece 230 is connected between the first air guide sleeve 210 and the second air guide sleeve 220; the connection member 230 includes: the first connection end 231 is used for being connected with the first pod 210, and the second connection end 232 is used for being connected with the second pod 220, so that the connection piece 230 smoothly and transitionally connects the first pod 210 and the second pod 220.
In order to improve the comfort of the rail train, an air conditioning unit is generally arranged on the rail vehicle to prevent the temperature in the carriage from being too high or too low; the air conditioning unit is usually installed on the top of the vehicle body, and one part of the air conditioning unit is located in the vehicle cabin and the other part of the air conditioning unit is located outside the vehicle cabin; when the rail train runs at a high speed, the air conditioning unit contacts with air at the top of the train body to generate resistance. Therefore, the first air guide sleeve 210 can be installed on the air conditioning unit on the top of the vehicle body to guide air, reduce impact of the air on the air conditioning unit and further reduce air resistance.
The first pod 210 may include: the front guide plate, the rear guide plate and two side guide plates connected between the front guide plate and the rear guide plate; the front guide plate, the rear guide plate and the two side guide plates are connected to form a connecting frame capable of being washed onto the air conditioning unit, and the front guide plate, the rear guide plate and the two side guide plates are all arc-shaped plates. The first air guide sleeve 210 may be detachably connected to the air conditioning unit, such as by screwing, clamping, bonding, and the like; the front deflector, the rear deflector and the two side deflectors may be plates formed by an inner glass fiber reinforced plastic layer, an intermediate three-dimensional fabric layer and an outer glass fiber reinforced plastic layer.
Rail vehicles are typically driven by power transmitted from a pantograph located atop their body. When the rail vehicle runs at a high speed, particularly at a speed of 200 km/h or more, the noise generated at the top of the vehicle body is mainly noise generated by friction between the pantograph and air, and the faster the vehicle speed is, the greater the noise is generated. Therefore, the second air guide sleeve 220 can be installed on the pantograph on the top of the vehicle body to prevent the side seam from blowing towards the pantograph, so that the friction between air and the pantograph is reduced, and further the pneumatic noise is reduced.
The second air guide sleeve 220 may include two side air guide sleeves oppositely arranged along the longitudinal direction of the vehicle body, and the two oppositely arranged side air guide sleeves are respectively arranged at two sides of the pantograph region 120; the outer surface of the side flow guide sleeve is in a streamline shape, the cross section of the side flow guide sleeve is approximately in a trapezoid shape with a narrow top and a wide bottom, and the side flow guide sleeve plays a role in guiding air flow when a rail vehicle runs at a high speed, so that wind resistance borne by the second flow guide sleeve 220 is relatively reduced, and meanwhile, noise generated by friction between the second flow guide sleeve 220 and air is also reduced.
The rail vehicle kuppe that this embodiment provided, effectively avoided among the prior art the air flow disorder of the gap department between air conditioning unit kuppe and the pantograph kuppe, through connecting piece 230 with first kuppe 210, second kuppe 220 rounding off connect, realize the smooth transition in regional 110 of air conditioning unit and pantograph region 120, air to between regional 110 of air conditioning unit and the pantograph region 120 has the guide effect, thereby the air resistance at rail vehicle automobile body top has been reduced, and the pneumatic noise at rail vehicle automobile body top has been reduced.
FIG. 3 is a schematic structural view of a connecting member in a guide shell of a railway vehicle according to an embodiment of the invention; FIG. 4 is a top view of FIG. 3; FIG. 5 is a partial sectional view taken along line B-B of FIG. 4; referring to fig. 3 to 5, further, a transition section 233 is connected between the first connection end 231 and the second connection end 232, and the transition section 233 includes a slope with a preset first inclination angle.
In this embodiment, the inclined plane with the first inclination angle forms a certain included angle between the windward side of the connecting member 230 and the air flow generated when the rail vehicle runs at a high speed, so that the air flow flows upwards along the upward inclined windward side, thereby reducing the air resistance at the top of the rail vehicle body and reducing the aerodynamic noise at the top of the rail vehicle body. Wherein, the first inclination angle can range from 33.4 degrees to 50 degrees.
Further, the first connection end 231 of the connection member 230 is an arc-shaped plate, and the first connection end 231 is adapted to the tail end of the first pod 210 facing the second pod 220, so that the first connection end 231 of the connection member 230 is attached to the tail end of the first pod 210; the second connection end 232 of the connection member 230 includes two connection portions disposed oppositely and respectively connected to the two side fairings of the second fairing 220. The connection member 230 is detachably connected to the first pod 210 and the second pod 220, respectively.
For example: bonding the first connection end 231 to the first pod 210; or at least two mounting holes are respectively formed at both sides of the first connection end 231, and the connection member 230 is screwed with the first guide plate through a bolt. The connecting portion of the second connecting end 232 may be sleeved on the side guide casing of the second guide casing 220, at least two mounting holes are provided on the connecting portion of the second connecting end 232, and the connecting member 230 is screwed with the second guide casing 220 by bolts; or the connection portion is clamped with the corresponding side flow guide cover, so that the side flow guide cover of the second flow guide cover 220 is inserted on the connection portion of the second connection end 232.
Further, the second air guide sleeve 220 comprises two side air guide sleeves and a tail end connecting the two side air guide sleeves, and a baffle extends towards the inner side from the top of the tail end; the inner surface of the baffle is an inclined surface, and a preset included angle is formed between the inner surface of the baffle and the inner surface of the tail end of the second air guide sleeve 220. The baffle is used for guiding air flow generated when the railway vehicle runs at a high speed so as to further reduce air resistance at the top of the vehicle body of the railway vehicle and reduce aerodynamic noise at the top of the vehicle body of the railway vehicle. The included angle may range from 1 degree to 70 degrees.
Further, grooves 221 are formed on the two side fairings of the second fairing 220, and sidewalls of the grooves 221 have a second inclination angle. Wherein, the value range of the width expansion coefficient of the bottom of the groove 221 is 1 to 1.2, and the value range of the second inclination angle is 20 to 70 degrees. The groove 221 is used for guiding air flow generated when the rail vehicle runs at a high speed, so that air resistance of the top of the rail vehicle body is further reduced, and aerodynamic noise of the top of the rail vehicle body is reduced.
By adopting the guide cover of the railway vehicle in the embodiment, the simulation calculation is carried out on the running of 3 marshalling motor train units at the speed of 250km/h, and the comparison of calculation results is as follows:
(1) the total resistance of the whole vehicle is 18314N, which is reduced by 1.62% compared with the prior art; the resistance of the intermediate vehicle (comprising a guide cover of the rail vehicle, a pantograph and the like) is reduced by 2.42 percent; the air guide sleeve resistance is reduced by 13.72 percent.
(2) The track vehicle air guide sleeve resistance is 13.72% lower than that of the prior art, the resistance of the pantograph at one end operating in a pantograph descending mode is 6.64% lower than that of the prior art, and the resistance of the pantograph at the two end operating in a pantograph ascending mode is 4.28% lower than that of the prior art.
(3) The lift force of the middle vehicle is-2293N, the lift force of the tail vehicle is 5973N, and the lift coefficient of the tail vehicle is 0.1627. Compared with the prior art, the lift force of the middle vehicle is 26.25 percent less, and the lift force of the tail vehicle is 2.98 percent less.
(4) The surface maximum acoustic power is 118.2dB, which is 3.9dB less than the prior art solutions.
(5) The average sound pressure level of the noise evaluation point of the whole vehicle is 87.36dBA, which is reduced by 0.49dBA compared with the prior art, and the maximum sound pressure level of the guide cover area is reduced by 0.9 dBA.
(6) The far field aerodynamic noise maximum sound pressure level is reduced by 0.59 dBA.
The guide sleeve of the railway vehicle provided by the embodiment has the advantages of simple and compact structure, better aerodynamic performance and pneumatic noise performance and capability of reducing the running energy consumption of the whole vehicle.
The embodiment also provides a rail vehicle, which comprises a vehicle body, wherein the top of the vehicle body is provided with a rail vehicle air guide sleeve, and the rail vehicle air guide sleeve is the rail vehicle air guide sleeve in any one of the embodiments.
The structure and function of the guide cover of the rail vehicle are similar to those of the foregoing embodiments, and are not described herein again.
The rail vehicle that this embodiment provided, effectively avoided among the prior art the air flow disorder of gap department between air conditioning unit kuppe and the pantograph kuppe, through connecting piece with first kuppe, the slick and sly transitional coupling of second kuppe, realize the regional smooth transition with the pantograph of air conditioning unit, air to between air conditioning unit region and the pantograph region has the guide effect, thereby the air resistance at rail vehicle automobile body top has been reduced, and the pneumatic noise at rail vehicle automobile body top has been reduced.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A rail vehicle pod, comprising: a first pod and a second pod; the first air guide sleeve is used for being installed in an air conditioning unit area, and the second air guide sleeve is used for being installed in a pantograph area; it is characterized in that the preparation method is characterized in that,
a connecting piece is connected between the first air guide sleeve and the second air guide sleeve; the connector includes: the first connecting end is used for being connected with the first air guide sleeve, and the second connecting end is used for being connected with the second air guide sleeve, so that the connecting piece enables the first air guide sleeve and the second air guide sleeve to be in smooth transition connection;
a transition section is connected between the first connecting end and the second connecting end of the connecting piece, and the transition section comprises an inclined plane with a preset first inclination angle.
2. The rail vehicle pod of claim 1, wherein the first connection end of the connector is an arcuate plate and is configured to mate with a trailing end of the first pod toward the second pod.
3. The railway vehicle air guide sleeve of claim 1, wherein the second connecting end comprises two oppositely arranged connecting portions, and the two connecting portions are respectively connected with two side air guide sleeves of the second air guide sleeve.
4. The rail vehicle air guide sleeve of claim 1, wherein the connecting piece is detachably connected with the first air guide sleeve and the second air guide sleeve respectively.
5. The rail vehicle air guide sleeve as claimed in claim 1, wherein a baffle extends inwards from the rear end of the second air guide sleeve facing away from the first air guide sleeve, and the inner surface of the baffle is an inclined surface.
6. The rail vehicle pod of claim 5, wherein an inner surface of the baffle is at a predetermined angle to an inner surface of the aft end of the second pod.
7. The railway vehicle air guide sleeve as claimed in claim 1, wherein grooves are formed on two side air guide sleeves of the second air guide sleeve, and side walls of the grooves have a second inclination angle.
8. A rail vehicle, characterized by comprising a vehicle body, wherein the top of the vehicle body is provided with a rail vehicle air guide sleeve, and the rail vehicle air guide sleeve is the rail vehicle air guide sleeve as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610397276.7A CN105922998B (en) | 2016-06-06 | 2016-06-06 | Rail vehicle pod and rail vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610397276.7A CN105922998B (en) | 2016-06-06 | 2016-06-06 | Rail vehicle pod and rail vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105922998A CN105922998A (en) | 2016-09-07 |
| CN105922998B true CN105922998B (en) | 2019-01-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610397276.7A Active CN105922998B (en) | 2016-06-06 | 2016-06-06 | Rail vehicle pod and rail vehicle |
Country Status (1)
| Country | Link |
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| CN (1) | CN105922998B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107444417B (en) * | 2017-06-21 | 2019-05-17 | 中车青岛四方机车车辆股份有限公司 | A kind of rail vehicle and its body construction |
| CN109131389A (en) * | 2018-09-14 | 2019-01-04 | 中车青岛四方机车车辆股份有限公司 | A kind of roof structure of rail vehicle |
| CN111907539B (en) * | 2019-07-22 | 2022-06-10 | 中车大同电力机车有限公司 | Locomotive head shape and locomotive |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101353019A (en) * | 2008-08-05 | 2009-01-28 | 铁道部运输局 | Pantograph flow guiding device of high speed rail vehicle |
| CN202966322U (en) * | 2012-12-25 | 2013-06-05 | 河北株丕特玻璃钢制品有限公司 | Roof air deflection cover for trains |
| CN203958154U (en) * | 2014-06-24 | 2014-11-26 | 南车青岛四方机车车辆股份有限公司 | A kind of inter-city train and air guide sleeve of air-conditioner thereof |
| CN105620500A (en) * | 2014-10-28 | 2016-06-01 | 上海略帷汽车设计有限公司 | Balance-pressure high-speed train head |
-
2016
- 2016-06-06 CN CN201610397276.7A patent/CN105922998B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101353019A (en) * | 2008-08-05 | 2009-01-28 | 铁道部运输局 | Pantograph flow guiding device of high speed rail vehicle |
| CN202966322U (en) * | 2012-12-25 | 2013-06-05 | 河北株丕特玻璃钢制品有限公司 | Roof air deflection cover for trains |
| CN203958154U (en) * | 2014-06-24 | 2014-11-26 | 南车青岛四方机车车辆股份有限公司 | A kind of inter-city train and air guide sleeve of air-conditioner thereof |
| CN105620500A (en) * | 2014-10-28 | 2016-06-01 | 上海略帷汽车设计有限公司 | Balance-pressure high-speed train head |
Non-Patent Citations (1)
| Title |
|---|
| 高速列车近场气动噪声数值仿真研究;黄艳艺等;《漳州职业技术学院院报》;20151231;第17卷(第4期);第6-17页 |
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| Publication number | Publication date |
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| CN105922998A (en) | 2016-09-07 |
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Inventor after: Han Lu Inventor after: Li Liangjie Inventor after: Kong Fanbing Inventor after: Guan Quanmei Inventor after: Sun Shujuan Inventor after: Wang Li Inventor after: Wang Zhaomei Inventor after: Li Guoqing Inventor before: Han Lu Inventor before: Kong Fanbing Inventor before: Guan Quanmei Inventor before: Wang Li Inventor before: Li Liangjie Inventor before: Wang Zhaomei Inventor before: Li Guoqing |
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