CN101289089A - Rail vehicle anti-collision safety device - Google Patents
Rail vehicle anti-collision safety device Download PDFInfo
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- CN101289089A CN101289089A CN 200710039579 CN200710039579A CN101289089A CN 101289089 A CN101289089 A CN 101289089A CN 200710039579 CN200710039579 CN 200710039579 CN 200710039579 A CN200710039579 A CN 200710039579A CN 101289089 A CN101289089 A CN 101289089A
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- longeron
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- front cross
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Abstract
The invention relates to a safety device for railbound vehicle and discloses a collision resistance safety device for railbound vehicle, which comprises a front cross beam, a longitudinal beam, a side longitudinal beam, a main energy absorption box and a side energy absorption box; one end of the longitudinal beam is connected with the front cross beam, and the other end is connected with the main energy absorption box; one end of the side longitudinal is connected with the front cross beam, and the other end is connected with the side energy absorption box; and the side longitudinal beam is positioned at the outside of the longitudinal beam; the front cross beam and the longitudinal beam are box-type closed beams; the connection point of the front cross beam and the longitudinal beam is provided with a welding strengthening plate; the side face of the longitudinal beam is provided with a plurality of holes. The safety device of railbound vehicle of the invention has the advantages of good energy absorption performance and collision stability, reduces collision acceleration of vehicle at the same time, can protect passenger more effectively and is especially suitable for high-speed monorail.
Description
Technical field
The present invention relates to a kind of safety device of guideway vehicle, relate in particular to a kind of anti-collision safety device applicable to high speed train.
Background technology
At present, guideway vehicle is provided with anticollision device more, to guarantee when running into accident collision, can avoid loss or reduce loss as far as possible.The structure design of anticollision device and material thereof are formed very crucial for the realization of crashproof function.Publication number is CN2499304, open date to be that the Chinese utility model patent on July 10th, 2002 discloses a kind of magnetic suspension train anticollision mechanism, this anticollision mechanism is made of shock absorber on crashproof wall and the car, being used for low-speed maglev train safety parks, but its energy absorption is limited, does not also have the energy-absorbing index.
Anticollision box is a kind of energy-absorbing anti-collision device that is used for the high-speed track vehicle; usually form by a few part assembly weldings such as energy-absorbing case, longitudinal and cross beams; its principle is consumed after by crossbeam and longeron bump stroke being passed to the energy-absorbing case; make structure set position generation large deformation simultaneously, thereby in the bump accident, protect occupant's safety with absorption bump kinetic energy.But, by analysis, find that this class anticollision box often has the problem of following several respects:
(1) crossbeam and longeron and Joint strenght thereof a little less than, be difficult to bear the big obstacle application force of bump relatively, so that after collision takes place, inefficacy will take place and can't transmit longitudinal force in more for a long time;
(2) owing to crossbeam and longitudinal beam premature failure, it is little to absorb impact kinetic energy;
Application force is bigger when (3) impacting, and is unfavorable for occupant's accident safety.
Recently there is paper to describe energy-absorbing anti-collision device with folk prescription pipe, pipe shape or single case shape, but this type of device energy absorption is less, the general lower city railway vehicle of speed (MarkusHecht.Influencing Factors at the Calculation of the Collision Pulseof a Regional Trainset.Prof.Dr.-ing.6th International SymposiumPassive Safety of Rail Vehicles-crashworthiness and InteriorDesign.Berl in, December 2006.) that only is used for.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of rail vehicle anti-collision safety device, by deep beam and longeron and bonded assembly intensity thereof, avoids the inefficacy in advance of force transmission element, thereby increases and stable energy absorption performance.
In order to solve the problems of the technologies described above, rail vehicle anti-collision safety device of the present invention, comprise front cross rail, longeron, secondary longeron, main energy-absorbing case and side draught energy case, one end of described longeron is connected with front cross rail, the other end is connected with main energy-absorbing case, one end of described secondary longeron is connected with front cross rail, the other end can be connected by case with side draught, and the outside that should the pair longeron be positioned at described longeron, described front cross rail and longeron are case type closed beam, be provided with the welding brace panel in the junction of this front cross rail and longeron, and several holes have been dug in described longeron side.
Rail vehicle anti-collision safety device of the present invention when having obstacle to bump against with a car in high-speed cruising, circuit front, can reach following index:
(1) absorb bigger bump kinetic energy, energy absorption is greater than 500KJ;
(2) impulsive force is less, and the longitudinal force peak value less than 30KN, helps protecting occupant safety when reaching above-mentioned energy absorption;
(3) structural distortion is stable, has improved collision performance, and vertically stroke is greater than 530mm, simultaneously, is reaching under the These parameters parameter situation maximum deceleration less than 22g, much smaller than the occupant's head injury criteria value that proposes in the world;
(4) adopt than proven technique, reduced manufacturing cost effectively.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Fig. 1 is the structure master plan of rail vehicle anti-collision safety device of the present invention;
Fig. 2 is that the front end local structure of rail vehicle anti-collision safety device of the present invention are amplified graphics;
Fig. 3 is the energy-absorbing diagram of curves that rail vehicle anti-collision safety device of the present invention obtains by emulation;
Fig. 4 is the acceleration plots that rail vehicle anti-collision safety device of the present invention obtains by emulation.
The specific embodiment
As shown in Figure 1, rail vehicle anti-collision safety device of the present invention comprises front cross rail 1, longeron 2, secondary longeron 3, main energy-absorbing case 4 and side draught energy case 5, one end of described longeron 2 is connected with front cross rail 1, the other end is connected with main energy-absorbing case 4, one end of described secondary longeron 3 is connected with front cross rail 1, the other end can be connected by case 5 with side draught, and the outside that should pair longeron 3 be positioned at described longeron 2, described front cross rail 1 and longeron 2 are case type closed beam, be provided with welding brace panel 6 (see figure 2)s in the junction of this front cross rail 1 and longeron 2, and described longeron 2 sides dig and be provided with several holes 7, the effect by this hole 7 makes the longeron distortion in order, and the increase deformation distance, thereby reduce impact acceleration.
Anti-collision safety device of the present invention is characteristic at keystone configuration beam and energy-absorbing case inner structure, mainly shows following several respects (see figure 2):
(1) front cross rail and longeron are case type closed beam.
(2) measure of welding brace panel is adopted in the junction of crossbeam and longeron, has increased the Joint strenght of crossbeam and longeron.
(3) dig elliptical aperture in the longeron side, thereby when bump, be easy to form " plastic hinge ", between the hole suitable spacing should be arranged, make structure when keeping good transmission force property, also increase deflection, reduced the bump deceleration/decel.
(4) adopt the novel aluminum foamed materials to fill front cross rail and longeron, with the energy absorption performance of rock-steady structure.
(5) main energy-absorbing case and side draught can all adopt aluminum pipe and dividing plate structure combining in the case, combination is specially: the space in the whole energy-absorbing case laterally is separated into the little case of serial boxlike with plate assembly welding longitudinally by multilayer, in the little case of boxlike of described sky, place again by being squeezed into the module that the tubulose thin-wall construction is formed, because of centre main energy-absorbing case energy-absorbing requires big, module wall in the little case of its boxlike is than the module wall thickness of both sides energy-absorbing case, the inner structure manufacturing of this energy-absorbing case is simple, economical, and preferable energy absorption performance is arranged.
(6) longeron and energy-absorbing case adopt bolted connection, are convenient to the replacing of impaired parts and do not influence the impact resistance performance.
In collision process, front cross rail at first bears the impact force between headstock and the obstacle, by longeron this power is delivered to the energy-absorbing case again, thereby longeron is main stressed member.In order to consume bump kinetic energy as much as possible, anti-collision safety device design two-stage energy-absorbing of the present invention, the first order is to be made of longeron (comprising secondary longeron), longeron is designed to seal box, in establish packing material, thereby have good energy absorption characteristics and bump stability; The second stage is the energy-absorbing case, can absorb more kinetic energy, generally just works when serious collision.
By rail vehicle anti-collision safety device of the present invention is carried out collision simulation, can reflect energy-absorbing effect and other correlation properties that it is good, be particularly useful for high-speed maglev train.The operating mode and the condition of collision simulation are: at because highly little obstacle takes place on the accidentalia circuit, the quality of this obstacle is 200 kilograms, and collision velocity is 360 kilometers/hour, i.e. 100 meter per seconds.The energy-absorbing curve that obtains by this collision simulation as shown in Figure 3, as can be seen from Figure 3, apparatus of the present invention are under above-mentioned simulated conditions, energy absorption is near 500KJ, and simultaneously, the accelerating curve that is obtained by collision simulation as shown in Figure 4, as can be seen from Figure 4, the maximum deceleration of apparatus of the present invention is less than 22g.
The data that obtain by collision simulation show, rail vehicle anti-collision safety device of the present invention can reach the target of better protection occupant safety, and its safety guard-safeguard effect is presented as: (1) makes structure set the kinetic energy that takes place when the position produces large deformation with the absorption collision; (2) reduce vehicle deceleration by the controlled deformation stroke, make it to be controlled within the permission injury values; (3) stable energy absorption performance.
Claims (4)
1. rail vehicle anti-collision safety device, comprise front cross rail, longeron, secondary longeron, main energy-absorbing case and side draught energy case, one end of described longeron is connected with front cross rail, the other end is connected with main energy-absorbing case, one end of described secondary longeron is connected with front cross rail, the other end can be connected by case with side draught, and the outside that should the pair longeron be positioned at described longeron, it is characterized in that, described front cross rail and longeron are case type closed beam, be provided with the welding brace panel in the junction of this front cross rail and longeron, and described longeron side is dug and is provided with several holes.
2. rail vehicle anti-collision safety device as claimed in claim 1 is characterized in that, is filled with the weighting substance that comprises the aluminum foam material in the described case type closed beam.
3. rail vehicle anti-collision safety device as claimed in claim 1 is characterized in that, described longeron and main energy-absorbing case pass through bolted connection.
4. rail vehicle anti-collision safety device as claimed in claim 1, it is characterized in that, described main energy-absorbing case and the side draught space in can case laterally is separated into the little case of dozens of boxlike with plate assembly welding longitudinally by multilayer, and places the module of being made up of the tubulose thin-wall construction in the little case of this boxlike.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710039579 CN101289089A (en) | 2007-04-18 | 2007-04-18 | Rail vehicle anti-collision safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710039579 CN101289089A (en) | 2007-04-18 | 2007-04-18 | Rail vehicle anti-collision safety device |
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| Publication Number | Publication Date |
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| CN101289089A true CN101289089A (en) | 2008-10-22 |
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| CN 200710039579 Pending CN101289089A (en) | 2007-04-18 | 2007-04-18 | Rail vehicle anti-collision safety device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102267472A (en) * | 2011-05-10 | 2011-12-07 | 上海磁浮交通发展有限公司 | Energy-absorbing and impact-preventing device for high-speed maglev train |
| CN105000029A (en) * | 2015-08-04 | 2015-10-28 | 深圳市乾行达科技有限公司 | Metal tube-honeycomb core combined type anti-creeper with built-in honeycomb core |
| CN105059309A (en) * | 2015-08-04 | 2015-11-18 | 深圳市乾行达科技有限公司 | Composite metal pipe and honeycomb core anticreeper with external honeycomb core |
| CN106515779A (en) * | 2016-12-23 | 2017-03-22 | 中车贵阳车辆有限公司 | Anti-collision device for rail wagon and using method of anti-collision device |
| WO2017148145A1 (en) * | 2016-03-01 | 2017-09-08 | 中南大学 | Collision energy absorption apparatus for rail vehicles |
| CN107323479A (en) * | 2017-06-29 | 2017-11-07 | 中车长春轨道客车股份有限公司 | The rail vehicle end endergonic structure of classification triggering is oriented to based on breach |
-
2007
- 2007-04-18 CN CN 200710039579 patent/CN101289089A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102267472A (en) * | 2011-05-10 | 2011-12-07 | 上海磁浮交通发展有限公司 | Energy-absorbing and impact-preventing device for high-speed maglev train |
| CN105000029A (en) * | 2015-08-04 | 2015-10-28 | 深圳市乾行达科技有限公司 | Metal tube-honeycomb core combined type anti-creeper with built-in honeycomb core |
| CN105059309A (en) * | 2015-08-04 | 2015-11-18 | 深圳市乾行达科技有限公司 | Composite metal pipe and honeycomb core anticreeper with external honeycomb core |
| CN105059309B (en) * | 2015-08-04 | 2018-01-23 | 深圳市乾行达科技有限公司 | A kind of external metal tube honeycomb core combined type anticreeper of honeycomb core |
| WO2017148145A1 (en) * | 2016-03-01 | 2017-09-08 | 中南大学 | Collision energy absorption apparatus for rail vehicles |
| US10556603B2 (en) | 2016-03-01 | 2020-02-11 | Central South University | Collision energy absorption apparatus for rail vehicles |
| CN106515779A (en) * | 2016-12-23 | 2017-03-22 | 中车贵阳车辆有限公司 | Anti-collision device for rail wagon and using method of anti-collision device |
| CN106515779B (en) * | 2016-12-23 | 2018-09-25 | 中车贵阳车辆有限公司 | A kind of railway freight-car anticollision device, collision-prevention device and its application method |
| CN107323479A (en) * | 2017-06-29 | 2017-11-07 | 中车长春轨道客车股份有限公司 | The rail vehicle end endergonic structure of classification triggering is oriented to based on breach |
| CN107323479B (en) * | 2017-06-29 | 2020-03-10 | 中车长春轨道客车股份有限公司 | Rail vehicle end energy-absorbing structure based on notch guiding and grading triggering |
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Open date: 20081022 |