CN103630324A - High-speed rail vehicle pantograph wind tunnel testing device - Google Patents
High-speed rail vehicle pantograph wind tunnel testing device Download PDFInfo
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- CN103630324A CN103630324A CN201310308528.0A CN201310308528A CN103630324A CN 103630324 A CN103630324 A CN 103630324A CN 201310308528 A CN201310308528 A CN 201310308528A CN 103630324 A CN103630324 A CN 103630324A
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Abstract
The invention relates to a high-speed rail vehicle pantograph wind tunnel testing device comprising a wind tunnel, a pantograph and an insulator. Rotatable upper and lower turntables are arranged in the vertical direction of the wind tunnel, a first force measuring balance is connected below the insulator, the bottom of the first force measuring balance is connected with the lower turntable, the head of the pantograph is connected with a second force measuring balance, and the second force measuring balance is connected with the upper turntable through a balance support rod. Aerodynamic resistance and lateral force of the pantograph and aerodynamic lift of the head of the pantograph can be measured simultaneously, test is more convenient and more accurate, the efficiency of wind tunnel test can be improved, and the cost for wind tunnel test can be reduced. Through rotation of the upper turntable and the lower turntable, continuous change of the sideslip angle of the pantograph is realized, the train running condition can be simulated more really, test data is more accurate, and continuously measurement can be carried out. In addition, the force measuring balance used for measuring the aerodynamic lift of the head is connected with the upper turntable through the balance support rod, which enables the aerodynamic lift of the head to be tested more conveniently and more accurately.
Description
Technical field
The present invention relates to a kind of wind tunnel test equipment, particularly a kind of high speed railway car pantograph air tunnel testing device.
Background technology
Along with the further raising of train speed, not only air resistance sharply increases, and the variation of bow lifting power, car-bow-net coupled vibrations also will be more complicated, directly affect current carrying quality.The good aerodynamic characteristic of pantograph is to guarantee bow net system followability, stability and reduce the key factor that bow net weares and teares and reduces aerodynamic drag, aerodynamic noise, thereby improves bow net serviceable life and guarantee security of operation.
The aerodynamic characteristics of High-speed Train pantograph, can adopt theoretical calculate, the means such as real vehicle line test and wind tunnel test, comparatively speaking, wind tunnel test had not only simply, fast, but also economic, distinguishing feature reliably.At present, domestic and international normally used wind tunnel test method is stay cord test, but this method exists aerodynamic lift to be subject to the impact of the problems such as the aerodynamic force of stay cord own, stay cord angle, stay cord vibration, existence cannot accurately obtain bow aerodynamic lift, and cannot realize the shortcoming that 360 ° of side drift angles are dried continuously and tested.
Summary of the invention
Fundamental purpose of the present invention is to address the above problem and is not enough, provides a kind of measurement accurate, and can realize the high speed railway car pantograph air tunnel testing device that 360 degree side drift angles connect blowing test.
For achieving the above object, technical scheme of the present invention is:
A kind of high speed railway car pantograph air tunnel testing device, comprise wind-tunnel, pantograph, insulator, in the vertical direction of described wind-tunnel, be provided with rotating top rotary table and lower rotary table, described insulator below connects the first force balance, the bottom of described the first force balance connects described lower rotary table, the bow of described pantograph connects the second force balance, and described the second force balance is connected with described top rotary table by balance pole.
Further, described insulation is three, and described in each, the below of insulator connects respectively described first force balance.
Further, between the bow of described pantograph and described the second force balance, by multi-directional ball bearing, be connected.
Further, described top rotary table and lower rotary table synchronously rotate.
Further, 360 ° of rotations of described top rotary table and lower rotary table.
Further, the bottom of described insulator is connected with described the first force balance by backing plate.
Further, described the first force balance is connected with described lower rotary table by lower connecting plate.
Further, described balance pole is connected with described top rotary table by upper junction plate.
Further, described the first force balance is six component force balances, and described the second force balance is simple component force balance.
Further, described wind-tunnel is repressurize wind-tunnel.
Content to sum up, high speed railway car pantograph air tunnel testing device of the present invention, compared with prior art, tool has the following advantages:
(1) this device can be measured aerodynamic drag, side force and the bow aerodynamic lift etc. of pantograph simultaneously, and it is convenient, accurate to test, and can also improve the efficiency of wind tunnel test, reduces wind tunnel test cost.
(2) by the rotation of top rotary table and lower rotary table, realize the continuous variation of pantograph yaw angle, simulate more truly train operation operating mode, make test figure more accurate, and can continuous coverage.
(3) for testing the force balance of bow aerodynamic lift, by balance pole, be connected with the top rotary table of top, can make the test of bow aerodynamic lift convenient, accurate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the proving installation structural representation on pantograph of the present invention top;
Fig. 3 is the proving installation structural representation of pantograph of the present invention bottom.
As shown in Figure 1 to Figure 3, test chamber 1, pantograph 2, insulator 3, top rotary table 4, lower rotary table 5, the first force balances 6, backing plate 7, lower connecting plate 8, bow 9, the second force balances 10, balance pole 11, upper junction plate 12, multi-directional ball bearing 13.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail:
As shown in Figure 1, high speed railway car pantograph air tunnel testing device of the present invention, comprises a test chamber 1, is provided with tested pantograph 2 in test chamber 1, and the below of pantograph 2 is provided with three insulators 3.This test chamber 1 can be realized the pantograph dynamometry wind tunnel test of 0-500km/h.
The inside of test chamber 1 is provided with rotating top rotary table 4 and lower rotary table 5 in vertical direction, and pantograph 2 is arranged between top rotary table 4 and lower rotary table 5.
As shown in figures 1 and 3, in order accurately to test aerodynamic drag, aerodynamic lift, the side force of pantograph 2, below each insulator 3, be fixedly connected with first force balance (six components) 6.Between the bottom of insulator 3 and the first force balance 6, one deck backing plate 7 is set, between insulator 3, backing plate 7 and the first force balance 6, be bolted to connection together, backing plate 7 can play the effect that regulates height, makes three the first force balances 6 in same plane.The bottom of the first force balance 6 is bolted to connection on a lower connecting plate 8, and lower connecting plate 8 is a circular slab, and three the first force balances 6 are fixed on a lower connecting plate 8 simultaneously, and lower connecting plate 8 is fixedly connected with lower rotary table 5 by bolt again.The existing bolt hole that utilizes lower rotary table 5 of lower connecting plate 8 connects, and three the first force balances 6 are connected with lower connecting plate 8 by bolt, avoid punching on lower rotary table 5, because taking motor rotating mechanism with a set of private, lower rotary table 5 is connected, dismounting is complicated, and processing cost is high, the problems referred to above can be effectively avoided in the use of lower connecting plate 8.The first force balance 6 adopts six component force balances, can measure more accurately many components aerodynamic drag, aerodynamic lift, side force of pantograph 2 etc., and is easy to dismounting, installs.
As depicted in figs. 1 and 2, bow 9 tops at pantograph 2 tops arrange a connection multi-directional ball bearing 13 and are connected with the second force balance 10, and the second force balance 10 adopts simple component force balances, and the second force balance 10 is for measuring the pneumatic lifting power of bow.The second force balance 10 is fixedly connected with top rotary table 4 by a balance pole 11, balance pole 11 adopts the Metallic rod of rigidity, the top of balance pole 11 is bolted to connection a upper junction plate 12, upper junction plate 12 is fixedly connected with top rotary table 4 by bolt again, and the bottom of balance pole 11 is fixedly connected with the second force balance 10 by bolt.The existing bolt hole that utilizes top rotary table 4 of upper junction plate 12 connects, and balance support bar 11 is connected with upper junction plate 12 by bolt, avoid punching on top rotary table 4, because taking motor rotating mechanism with a set of private, top rotary table 4 is connected, dismounting is complicated, and processing cost is high, the problems referred to above can be effectively avoided in the use of upper junction plate 12.The second force balance 10 is fixed on top rotary table 4 by balance pole 11, the impact on test result such as the own aerodynamic force of stay cord that can avoid available technology adopting stay cord to connect force balance bringing, stay cord angle, stay cord vibration.Between the slide plate of bow 9 and the second force balance 10, by multi-directional ball bearing 13, be connected, make between the slide plate of the second force balance 10 and bow 9, for ball contacts, to avoid herein, because rotation produces moment, affect the accuracy that aerodynamic lift is tested.
Top rotary table 4 and lower rotary table 5 embed and are arranged on the inwall of test chamber 1, and top rotary table 4 and lower rotary table 5 are rotated within the scope of 360 ° by driven by motor, and top rotary table 4 and lower rotary table 5 are realized synchronous rotation by control.Top rotary table 4 and lower rotary table 5 is synchronous while rotating, and drives lower connecting plate 8, three the first force balance 6, three insulators 3, pantograph 2 and upper junction plates 12, balance pole 11, the second force balance 10 etc. to rotate together.
During test, test chamber 1 is to pantograph 2 blowings, operating mode during simulation bullet train linear running, now, by the first force balance 6 and the second force balance 10, read related data, and then synchronously obtain the pneumatic lifting power of aerodynamic drag, aerodynamic lift, side force and bow of the pantograph 2 under this operating mode.
Further, drive top rotary table 4 and lower rotary table 5 synchronously to rotate, on the basis of test chamber 1, pantograph 2 yaw angles are changed continuously, the difference operating mode at angle windward while simulating train operation, carries out the test of drying continuously of 360 ° of side drift angles of pantograph.Top rotary table 4 and lower rotary table 5 rotate continuously, realize 360 ° of continuous coverages, by the first force balance 6 and the second force balance 10, read in real time related data, synchronously obtain the pneumatic lifting power of aerodynamic drag, aerodynamic lift, side force and bow of the pantograph 2 under this operating mode etc.Can realize friction speed grade (0-500km/h as required optional velocity stage), different side drift angles (0-360 ° as required optional fast side drift angle) follow-on test.
In the present embodiment, can also in pressurized wind tunnel, use, can change Reynolds number by supercharging, and then simulate more really train operation operating mode, make test data more accurate, for train design provides more reliably, guarantee.
As mentioned above, given scheme content, can derive similar technical scheme by reference to the accompanying drawings.In every case be the content that does not depart from technical solution of the present invention, any simple modification, equivalent variations and the modification above embodiment done according to technical spirit of the present invention, all still belong in the scope of technical solution of the present invention.
Claims (10)
1. a high speed railway car pantograph air tunnel testing device, comprise wind-tunnel, pantograph, insulator, it is characterized in that: in the vertical direction of described wind-tunnel, be provided with rotating top rotary table and lower rotary table, described insulator below connects the first force balance, the bottom of described the first force balance connects described lower rotary table, the bow of described pantograph connects the second force balance, and described the second force balance is connected with described top rotary table by balance pole.
2. high speed railway car pantograph air tunnel testing device according to claim 1, is characterized in that: described insulation is three, and described in each, the below of insulator connects respectively described first force balance.
3. high speed railway car pantograph air tunnel testing device according to claim 1, is characterized in that: between the bow of described pantograph and described the second force balance, by multi-directional ball bearing, be connected.
4. high speed railway car pantograph air tunnel testing device according to claim 1, is characterized in that: described top rotary table and lower rotary table synchronously rotate.
5. high speed railway car pantograph air tunnel testing device according to claim 4, is characterized in that: 360 ° of rotations of described top rotary table and lower rotary table.
6. high speed railway car pantograph air tunnel testing device according to claim 1, is characterized in that: the bottom of described insulator is connected with described the first force balance by backing plate.
7. high speed railway car pantograph air tunnel testing device according to claim 1, is characterized in that: described the first force balance is connected with described lower rotary table by lower connecting plate.
8. high speed railway car pantograph air tunnel testing device according to claim 1, is characterized in that: described balance pole is connected with described top rotary table by upper junction plate.
9. high speed railway car pantograph air tunnel testing device according to claim 1, is characterized in that: described the first force balance is six component force balances, and described the second force balance is simple component force balance.
10. high speed railway car pantograph air tunnel testing device according to claim 1, is characterized in that: described wind-tunnel is repressurize wind-tunnel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310308528.0A CN103630324A (en) | 2013-07-22 | 2013-07-22 | High-speed rail vehicle pantograph wind tunnel testing device |
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| CN201310308528.0A CN103630324A (en) | 2013-07-22 | 2013-07-22 | High-speed rail vehicle pantograph wind tunnel testing device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307583A (en) * | 2018-11-28 | 2019-02-05 | 中车长春轨道客车股份有限公司 | Aerodynamic noise wind tunnel test train scaled model device and its noise fest method |
| CN111141478A (en) * | 2020-01-20 | 2020-05-12 | 吉林大学 | Flexible active rotation wheel whole vehicle wind tunnel test platform and control method thereof |
| CN112834162A (en) * | 2021-04-22 | 2021-05-25 | 四川迅鹏科技有限公司 | Pantograph bow lifting force measuring test device |
| CN115683529A (en) * | 2023-01-03 | 2023-02-03 | 中国空气动力研究与发展中心低速空气动力研究所 | Pantograph contact force test device |
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| CN202229861U (en) * | 2011-09-29 | 2012-05-23 | 林建辉 | Actual-line testing system for aerodynamic resistance of high-speed train pantograph |
| CN203455153U (en) * | 2013-07-22 | 2014-02-26 | 南车青岛四方机车车辆股份有限公司 | Wind tunnel testing device for pantograph of high-speed rail vehicle |
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2013
- 2013-07-22 CN CN201310308528.0A patent/CN103630324A/en active Pending
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| JP2009145259A (en) * | 2007-12-17 | 2009-07-02 | Railway Technical Res Inst | Aerodynamic characteristic measuring method of object for improving aerodynamic characteristic, method of optimizing object shape, object optimized using the same, and shape variable model for aerodynamic characteristic evaluating experiment |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307583A (en) * | 2018-11-28 | 2019-02-05 | 中车长春轨道客车股份有限公司 | Aerodynamic noise wind tunnel test train scaled model device and its noise fest method |
| CN109307583B (en) * | 2018-11-28 | 2020-10-23 | 中车长春轨道客车股份有限公司 | Method for carrying out noise test by using train scale reduction model device for pneumatic noise wind tunnel test |
| CN111141478A (en) * | 2020-01-20 | 2020-05-12 | 吉林大学 | Flexible active rotation wheel whole vehicle wind tunnel test platform and control method thereof |
| CN112834162A (en) * | 2021-04-22 | 2021-05-25 | 四川迅鹏科技有限公司 | Pantograph bow lifting force measuring test device |
| CN115683529A (en) * | 2023-01-03 | 2023-02-03 | 中国空气动力研究与发展中心低速空气动力研究所 | Pantograph contact force test device |
| CN115683529B (en) * | 2023-01-03 | 2023-08-25 | 中国空气动力研究与发展中心低速空气动力研究所 | Pantograph contact force test device |
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Application publication date: 20140312 |