CN202011330U - High-speed pantograph capable of reducing resistance and noises - Google Patents
High-speed pantograph capable of reducing resistance and noises Download PDFInfo
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- CN202011330U CN202011330U CN2011200944185U CN201120094418U CN202011330U CN 202011330 U CN202011330 U CN 202011330U CN 2011200944185 U CN2011200944185 U CN 2011200944185U CN 201120094418 U CN201120094418 U CN 201120094418U CN 202011330 U CN202011330 U CN 202011330U
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- 239000012212 insulator Substances 0.000 claims description 3
- 241001125292 Balaena mysticetus Species 0.000 claims 1
- 230000003137 locomotive effect Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 235000001968 nicotinic acid Nutrition 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
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Abstract
减阻降噪型高速受电弓属电气化铁路机车技术领域，本实用新型中上臂杆和下臂杆的表面为均匀分布的球缺型凹坑表面，球缺型凹坑的大小和分布由凹坑底圆直径、凹坑深度和凹坑间距确定；球缺型凹坑表面能改善臂杆表面空气边界层，有效降低臂杆的空气阻力系数，减小臂杆表面的脉动压力，降低高速受电弓的空气阻力和空气动力学噪音，改善高速受电弓运行时的空气动力学性能，满足最佳弓网受流要求，减少对环境的干扰，球缺型凹坑表面制造工艺简单，易于实现。
The drag-reducing and noise-reducing high-speed pantograph belongs to the technical field of electrified railway locomotives. In the utility model, the surfaces of the upper arm and the lower arm are evenly distributed spherical-shaped pit surfaces, and the size and distribution of the spherical-shaped pits are determined by the The diameter of the bottom circle, the depth of the pit and the distance between the pits are determined; the surface of the spherical-shaped pit can improve the air boundary layer on the surface of the arm, effectively reduce the air resistance coefficient of the arm, reduce the pulsating pressure on the surface of the arm, and reduce the high-speed impact. The air resistance and aerodynamic noise of the pantograph can improve the aerodynamic performance of the high-speed pantograph, meet the requirements of the best pantograph-catenary flow, and reduce the interference to the environment. accomplish.
Description
Technical field
The utility model belongs to electrified railway locomotive technology field, is specifically related to drag reduction noise reducing type high speed pantograph.
Background technology
The train mechanical resistance is directly proportional with train running speed, and train air resistance and train running speed square are directly proportional.When train speed reached 200km/h, the air resistance of train accounted for about 70% of train total drag, and when train speed surpassed 300km/h, the train air resistance then will account for more than 85%.Wherein, the air resistance of pantograph occupies very big proportion in the total air resistance of train, according to the shape of pantograph and pedestal thereof and the situation of fairing, accounts for 8%～14% of the total air resistance of train.During the train high-speed cruising, armed lever and lower arm rod are under the action of high-speed airflow on the pantograph, reduce the air resistance of pantograph armed lever, and the aerodynamic performance when helping improving the pantograph high-speed cruising satisfies best pantograph-catenary current collection requirement.
Along with the raising of train speed, the high speed train mechanical noise is withdrawn to next, and aerodynamic noise is more and more obvious.Wherein the aerodynamic noise of high speed pantograph is one of overriding noise source of train aerodynamics noise, the aerodynamic noise of high speed pantograph passes to the travelling comfort that can influence passenger in the car in the car, passes to the resident that can give the railway both sides outside the car and bring severe noise to pollute.When the train high-speed cruising, the pantograph armed lever causes that under action of high-speed airflow periodically the vortex shunting has produced very big aerodynamic noise.
Conventional at present method is to reduce the pantograph rod member, installs the air resistance that the pantograph streamlined reefer housing reduces pantograph additional, reduces the pantograph aerodynamic noise.Conventional approach drag reduction noise reduction is limited.
Summary of the invention
The purpose of this utility model is to propose a kind of drag reduction noise reducing type high speed pantograph, last armed lever wherein, lower arm rod surface well-distributed ball-cut shape pit surface, it can effectively improve the boundary layer of air situation on armed lever surface, reduce the pulsating pressure on armed lever surface, reduce the air resistance and the aerodynamic noise of high speed pantograph.
The utility model is made up of bow angle 1, contact slide plate 2, bow 3, cradling piece 4, top guide bar 5, last armed lever 6, lower arm rod 7, lower guide rod 8, insulator 9 and underframe 10, the surface of wherein going up armed lever 6 and lower arm rod 7 is a well-distributed ball-cut shape pit surface, and the size of ball-cut shape pit and distribution are determined by circular diameter d, pit depth h at the bottom of the pit and pit spacing m.
Circular diameter d is 5-10mm at the bottom of the pit on last armed lever 6 and lower arm rod 7 surfaces, and pit depth h is 1-3mm, and adjacent two pit spacings are all identical arbitrarily, and pit spacing m is 5-20mm.
The last armed lever of pantograph, lower arm rod surface well-distributed ball-cut shape pit are according to bionics principle in the utility model, utilize the organism surface non-smooth surface to carry out drag reduction.Ball-cut shape pit non-smooth surface can make turbulent flow change and twist generation, and turbulent boundary layer is difficult for the flow separation phenomenon takes place, and boundary 1ayer is close to the armed lever surface, make level and smooth air-flow walk back some along armed lever more, reduce the wake zone, increase the pressure at armed lever rear, reduce pressure drag.Ball-cut shape pit non-smooth surface can reduce the pulsating pressure on armed lever surface simultaneously, reduces the aerodynamic noise that armed lever causes.
Compared with prior art, the beneficial effects of the utility model are:
1. the ball-cut shape pit non-smooth surface of lower arm rod, lower arm rod can effectively reduce the air resistance of armed lever, and the aerodynamic performance when improving the pantograph high-speed cruising satisfies best pantograph-catenary current collection requirement.
2. the ball-cut shape pit non-smooth surface of lower arm rod, lower arm rod can effectively reduce the aerodynamic noise of armed lever, reduces the interference to environment.
3. ball-cut shape pit surface manufacturing process is simple, is easy to realize.
Description of drawings
Fig. 1 is a drag reduction noise reducing type high speed pantograph structural representation
Fig. 2 goes up armed lever surfaces A portion enlarged diagram shown in Fig. 1
Fig. 3 is a B-B cross sectional view among Fig. 2
Wherein: 1. bow angle 2. contacts armed lever 7. lower arm rods 8. lower guide rods 9. insulators 10. underframe on slide plates 3. bows 4. cradling pieces 5. top guide bars 6.
Circular diameter at the bottom of the d--pit; The h--pit depth; The adjacent two pit spacings of m--.
The specific embodiment
Below in conjunction with drawings and the specific embodiments the concrete structure that the utility model proposes is described further.
Embodiment one
As shown in Figures 1 to 3, a kind of specific embodiment of the present utility model is: well-distributed ball-cut shape pit surface is made, circular diameter d=5mm at the bottom of the pit, pit depth h=1mm, adjacent two pit spacing m=5mm in the surface of going up armed lever 6 and lower arm rod 7.
Embodiment two
As shown in Figures 1 to 3, a kind of specific embodiment of the present utility model is: well-distributed ball-cut shape pit surface is made, circular diameter d=6mm at the bottom of the pit, pit depth h=2mm, adjacent two pit spacing m=15mm in the surface of going up armed lever 6 and lower arm rod 7.
Embodiment three
As shown in Figures 1 to 3, a kind of specific embodiment of the present utility model is: well-distributed ball-cut shape pit surface is made, circular diameter d=10mm at the bottom of the pit, pit depth h=3mm, adjacent two pit spacing m=20mm in the surface of going up armed lever 6 and lower arm rod 7.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200944185U CN202011330U (en) | 2011-04-02 | 2011-04-02 | High-speed pantograph capable of reducing resistance and noises |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200944185U CN202011330U (en) | 2011-04-02 | 2011-04-02 | High-speed pantograph capable of reducing resistance and noises |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202011330U true CN202011330U (en) | 2011-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200944185U Expired - Fee Related CN202011330U (en) | 2011-04-02 | 2011-04-02 | High-speed pantograph capable of reducing resistance and noises |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104709093A (en) * | 2015-03-12 | 2015-06-17 | 南车青岛四方机车车辆股份有限公司 | Pantograph installation seat of railway vehicle |
| CN106183832A (en) * | 2016-08-09 | 2016-12-07 | 金华青年汽车制造有限公司 | A kind of reverse pantograph charging system for passenger vehicle |
| CN106379345A (en) * | 2016-09-20 | 2017-02-08 | 中车唐山机车车辆有限公司 | High-speed train and resistance reduction method thereof |
| CN108859771A (en) * | 2018-09-15 | 2018-11-23 | 华东交通大学 | Based on the reducing noise and drag high-speed train pantograph that polynary coupling is bionical |
| CN109795324A (en) * | 2019-03-04 | 2019-05-24 | 西南交通大学 | A pantograph bow head of an annular shaft-rotating electric traction locomotive |
| CN111114330A (en) * | 2020-01-03 | 2020-05-08 | 北京中车赛德铁道电气科技有限公司 | Pantograph upper arm assembly |
| CN112060915A (en) * | 2020-09-11 | 2020-12-11 | 中车长春轨道客车股份有限公司 | Integrated system of pantograph and diversion structure with low flow resistance and low noise for high-speed trains |
| CN114347794A (en) * | 2021-12-28 | 2022-04-15 | 中南大学 | A pantograph structure for train |
| CN114783702A (en) * | 2022-03-23 | 2022-07-22 | 西南交通大学 | A drag reduction structure for a motor vehicle roof insulator |
| CN117841692A (en) * | 2024-02-22 | 2024-04-09 | 兰州交通大学 | Torsion arm, low noise high speed train pantograph and high speed train |
-
2011
- 2011-04-02 CN CN2011200944185U patent/CN202011330U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104709093A (en) * | 2015-03-12 | 2015-06-17 | 南车青岛四方机车车辆股份有限公司 | Pantograph installation seat of railway vehicle |
| CN106183832A (en) * | 2016-08-09 | 2016-12-07 | 金华青年汽车制造有限公司 | A kind of reverse pantograph charging system for passenger vehicle |
| CN106379345A (en) * | 2016-09-20 | 2017-02-08 | 中车唐山机车车辆有限公司 | High-speed train and resistance reduction method thereof |
| CN108859771A (en) * | 2018-09-15 | 2018-11-23 | 华东交通大学 | Based on the reducing noise and drag high-speed train pantograph that polynary coupling is bionical |
| CN109795324B (en) * | 2019-03-04 | 2023-10-24 | 西南交通大学 | Pantograph head of annular shaft-rotating electric traction locomotive |
| CN109795324A (en) * | 2019-03-04 | 2019-05-24 | 西南交通大学 | A pantograph bow head of an annular shaft-rotating electric traction locomotive |
| CN111114330A (en) * | 2020-01-03 | 2020-05-08 | 北京中车赛德铁道电气科技有限公司 | Pantograph upper arm assembly |
| CN112060915A (en) * | 2020-09-11 | 2020-12-11 | 中车长春轨道客车股份有限公司 | Integrated system of pantograph and diversion structure with low flow resistance and low noise for high-speed trains |
| CN114347794A (en) * | 2021-12-28 | 2022-04-15 | 中南大学 | A pantograph structure for train |
| CN114347794B (en) * | 2021-12-28 | 2024-06-25 | 中南大学 | Pantograph structure for train |
| CN114783702A (en) * | 2022-03-23 | 2022-07-22 | 西南交通大学 | A drag reduction structure for a motor vehicle roof insulator |
| CN114783702B (en) * | 2022-03-23 | 2023-10-27 | 西南交通大学 | Motor car roof insulator drag reduction structure |
| CN117841692A (en) * | 2024-02-22 | 2024-04-09 | 兰州交通大学 | Torsion arm, low noise high speed train pantograph and high speed train |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111019 Termination date: 20120402 |