CN103072587B - A kind of outer wind shield for vehicle - Google Patents
A kind of outer wind shield for vehicle Download PDFInfo
- Publication number
- CN103072587B CN103072587B CN201310010543.7A CN201310010543A CN103072587B CN 103072587 B CN103072587 B CN 103072587B CN 201310010543 A CN201310010543 A CN 201310010543A CN 103072587 B CN103072587 B CN 103072587B
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- China
- Prior art keywords
- outer hood
- improve
- steel bushing
- hood
- installing hole
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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
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- Body Structure For Vehicles (AREA)
- Sealing Devices (AREA)
Abstract
Convince chute by patient analysis in the underbody position of outer hood, the space of air flow guiding can be increased, improve the impact of underbody portion flow perturbation external windshield.Increase protection steel bushing at outer hood position of mounting hole, the stress concentration installing screw thread to rubber can be reduced, increase the lifting surface area of installing hole, improve the stress distribution situation of installing hole, supported the bending resistance improving outer hood simultaneously by steel bushing.There is certain inclined angle in outer hood wing plate and car body direction, the pressure differential of outer hood both sides can be reduced, thus reduce the aerodynamic force that turns up suffered by outer hood, improve the air-flow environment of whole outer hood, inclined angle is not less than 2 °, advantageously in air-flow distribution of force on outer hood.By above-mentioned improvement, solve outer hood and turn up when train high-speed cruising the defect even torn, improve the service life of outer hood and reduce the cost of repair.
Description
Technical field:
The present invention relates to the improved structure of a kind of outer hood, the improved structure of a kind of EMUs outer hood, belong to mechanical manufacturing field.
Background technology:
In order to reduce the aerodynamic drag that EMUs run, improve the stream conditions that junction, compartment endogenous wind gear is put, reduce the aerodynamic noise of junction, compartment and horizontal aerodynamic force, be fitted with the device of outer hood structure in the interior windscreen both sides of EMUs.When EMUs high-speed cruising, in junction, compartment due to the change in car body cross section, flow perturbation aggravates, and adds aerodynamic drag and aerodynamic noise that car load runs.When vehicle is crossed bend, meeting, crossed tunnel, the impact of whole car body is increased by crossflow, hence it is evident that adds the air-flow load of interior windscreen, likely can cause overturning time serious.Therefore, select suitable outer hood, make gas flow smooth transition, reduce the impact of the internal windscreen of crossflow, be to ensure that an important method of EMU safe operation.Existing outer hood pattern is the length by installing gum plate prolongation compartment in end, compartment, reduce the gap between junction, compartment to reduce aerodynamic force, but the existence of presently used product is turned up and the situation of root tear, original outer hood is improved by this invention exactly, be used for solving to there is currently turns up and tear problem, reduces air drag to greatest extent simultaneously.
Summary of the invention
The purpose of the present invention is aiming at the situation that existing outer hood turns up when high-speed cruising and tears problem, there is provided a kind of and can improve the aerodynamic drag that EMUs run, can guarantee that again the outer hood not turned up when high-speed cruising simultaneously, thus solve the risk that vehicle runs, reduce the cost that outer hood is changed and safeguarded.
It is an object of the invention to be achieved through the following technical solutions, the outer hood of a kind of new structure, the underbody position being included in outer hood convinces chute by patient analysis.Convince chute by patient analysis in the underbody position of outer hood, the space of air flow guiding can be increased, improve the impact of underbody portion flow perturbation external windshield.
The invention has the beneficial effects as follows: in the most complicated underbody position of air-flow by convincing chute by patient analysis, improve the disturbance of car bottom airflow external windshield, reduce the aerodynamic force of outer hood, improve the whole air-flow environment of car end, solve outer hood and turn up the defect of tear.
Accompanying drawing illustrates:
Fig. 1 is the guide trough structure schematic diagram of one embodiment of the invention 1；
Fig. 2 is the protection steel sleeve structure schematic diagram of one embodiment of the invention 2；
Fig. 3 is the introversion structural representation of one embodiment of the invention 3.
In figure: 1-protects steel bushing；2-rubber bodies
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention will be further described.
Embodiment one
As it is shown in figure 1, convince chute by patient analysis in the underbody position of outer hood.
Owing to track irregularity and underbody equipment are complicated, the air-flow of vehicle bottom is the most stable, and outer hood turns up and Splitting is also many from the beginning of underbody part.Convince chute by patient analysis in the underbody position of outer hood, the space of air flow guiding, the beneficially pressure release of underbody air-flow can be increased, thus reduce the impact of underbody flow perturbation external windshield, improve the situation of car bottom position outer hood tear.Certainly, the outer hood of the present invention be not limited to the use of rail vehicle.
Embodiment two
As in figure 2 it is shown, increase protection steel bushing inside installing hole.
After adding protection steel bushing; the stress form of installing hole is become the linear contact lay of bolt and steel bushing by the linear contact lay of rubber Yu bolt thread; then steel bushing face contacts with installing hole rubber face again; improve the stressing conditions of installing hole; the stress reducing installing hole is concentrated, thus prevents rubber from deforming tear under the interaction with bolt.
Simultaneously because the support of protected steel bushing, the flexural strength of position of mounting hole is also correspondingly improved, and can effectively prevent outer hood flexural deformation under bigger External Force Acting.
Embodiment three
As it is shown on figure 3, the wing plate of outer hood is designed to incline structure, it is preferred that be allowed to become introversion α ° with car body direction, the size of α calculates and analyzes the lower pressure differential that can effectively reduce outer hood both sides and is as the criterion with aerodynamic.
Research finds, when inclined angle α is not less than 2 °, when speed is in middling speed or high speed, calculated by aerodynamic and analyze, can effectively reduce the pressure differential of outer hood both sides, thus reduce the power of turning up of air-flow external windshield, particularly reduce the probability that outer hood turns up when vehicle high-speed runs, be finally reached the purpose preventing outer hood from tearing.This patent had been carried out 2 °, 5 °, and 10 °, the inclined angle of preferably 5 °, now this structure is when vehicle middling speed or high-speed cruising, can greatly improve outer hood operating mode.Wherein, as a example by the motor-car of 200km/h speed per hour, the former scheme of force rate of turning up of outer hood reduces 11%, and maximum distortion reduces 30%, significantly improves the operating mode of outer hood.
In a word, the specific design scheme of the present invention is: convince chute by patient analysis in the underbody position of outer hood；Protection steel bushing is increased inside outer hood installing hole；The wing plate of outer hood is designed to incline structure, is allowed to become leaning angle to be not less than 2 ° with car body direction.Thus it is poor to reduce outer hood pressure at both sides, reduce flow perturbation, improve the bending resistance of outer hood, improve the stress distribution of outer hood, reduce the stress of rubber, improve the tired operating mode of product, well solve the problem that current outer hood turns up and tears.
Claims (4)
1. an outer wind shield for vehicle, it is characterised in that: convince chute by patient analysis in the underbody position of outer hood, installing
Hole is internal increases protection steel bushing；The wing plate of outer hood is designed to incline structure, is allowed to become introversion with car body direction
α °, α is not less than 2, is calculated by aerodynamic and analyzes, and this kind of introversion structure can effectively reduce outer hood two
The pressure differential of side.
2. outer hood as claimed in claim 1, it is characterised in that: α is equal to 5.
3. outer hood as claimed in claim 1 or 2, it is characterised in that: after adding protection steel bushing, peace
The stress form in dress hole is become the linear contact lay of bolt and steel bushing, then steel by the linear contact lay of rubber Yu bolt thread
Set face contacts with installing hole rubber face again.
4. EMUs, it is characterised in that: these EMUs install the exogenous wind as described in one of claim 1-3
Gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310010543.7A CN103072587B (en) | 2013-01-11 | 2013-01-11 | A kind of outer wind shield for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310010543.7A CN103072587B (en) | 2013-01-11 | 2013-01-11 | A kind of outer wind shield for vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103072587A CN103072587A (en) | 2013-05-01 |
| CN103072587B true CN103072587B (en) | 2016-12-28 |
Family
ID=48149336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310010543.7A Active CN103072587B (en) | 2013-01-11 | 2013-01-11 | A kind of outer wind shield for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103072587B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107215347B (en) * | 2017-06-26 | 2019-10-29 | 株洲时代新材料科技股份有限公司 | Anti- pendular regime of the wind resistance of outer wind shield for vehicle and products thereof, track train |
| CN109624621B (en) * | 2018-12-28 | 2024-06-07 | 虎伯拉铰接系统（上海）有限公司 | Inner windshield assembly for vehicle and vehicle comprising same |
| CN110509937B (en) * | 2019-08-30 | 2021-04-16 | 株洲时代新材料科技股份有限公司 | Quickly-installed windshield assembly and assembling and disassembling method thereof |
| CN112796242B (en) * | 2019-11-14 | 2022-10-25 | 中车长春轨道客车股份有限公司 | Damping and noise-reducing windshield flow guiding device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101857032A (en) * | 2009-04-01 | 2010-10-13 | 许布奈有限公司 | And evenly be installed in the air guide member in the interconnecting gangway between articulated vehicle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4183675B2 (en) * | 2004-10-20 | 2008-11-19 | 東海旅客鉄道株式会社 | Outer hood for connecting parts of railway vehicles |
-
2013
- 2013-01-11 CN CN201310010543.7A patent/CN103072587B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101857032A (en) * | 2009-04-01 | 2010-10-13 | 许布奈有限公司 | And evenly be installed in the air guide member in the interconnecting gangway between articulated vehicle |
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| Publication number | Publication date |
|---|---|
| CN103072587A (en) | 2013-05-01 |
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