CN110550063A - Multistage buffering energy-absorbing device - Google Patents
Multistage buffering energy-absorbing device Download PDFInfo
- Publication number
- CN110550063A CN110550063A CN201910861917.3A CN201910861917A CN110550063A CN 110550063 A CN110550063 A CN 110550063A CN 201910861917 A CN201910861917 A CN 201910861917A CN 110550063 A CN110550063 A CN 110550063A
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- energy
- storage chamber
- energy absorption
- air
- fixed
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F19/00—Wheel guards; Bumpers; Obstruction removers or the like
- B61F19/04—Bumpers or like collision guards
Abstract
the invention provides a multistage buffering energy-absorbing device, and belongs to the technical field of rail vehicle collision tests. The high-pressure air storage chamber is fixedly connected with the mounting plate, an air inlet device is arranged on the right side wall surface of the high-pressure air storage chamber, an emergency air release device is arranged on the left side wall surface of the high-pressure air storage chamber, the high-pressure air storage chamber is arranged below the second compound flange plate, an air inlet one-way valve is arranged in the middle of the high-pressure air storage chamber, an air outlet one-way valve is arranged on the left side of the middle position of the high-pressure air storage chamber, a second-stage energy absorption device is arranged above the second compound flange plate, the lower half portion of the second-stage energy absorption device is provided with the buffer air spring, the upper half portion of the second-stage energy absorption device is provided with a guide pressing block, the guide pressing block. The energy-absorbing device is mainly used for absorbing collision energy of railway vehicles.
Description
Technical Field
The invention belongs to the technical field of rail vehicle collision.
Background
Along with the continuous development of the railway transportation industry in China, the running speed of a train is also continuously improved, if the train has a collision accident, the damage to personnel and locomotives can be caused, and the passive safety research of the locomotive has very important significance for protecting the safety of drivers and passengers and preventing goods from causing loss in order to avoid a great amount of casualties and reduce property loss caused by the collision of the train. The energy absorption device is a key link of a collision-resistant design of the locomotive, when the energy absorption device is impacted, the generated plastic deformation consumes energy, a certain crushing stroke is generated at the same time, and the running speed of the locomotive is reduced while kinetic energy is absorbed.
Disclosure of Invention
The invention aims to provide a multi-stage buffering energy absorption device, which can effectively solve the technical problems that the existing energy absorption device of a rolling stock has short action stroke and does not have an emergency energy release device.
The invention is realized by the following technical scheme: a multi-stage buffering energy-absorbing device comprises a mounting plate, anti-climbing teeth, a first-stage energy-absorbing pipe and a second-stage energy-absorbing pipe, wherein the mounting plate is fixed at the end part of a vehicle through bolts, the inner sides of the anti-climbing teeth are fixed with the front end of the first-stage energy-absorbing pipe, the tail ends of the anti-climbing teeth are fixed with the front end face of a first compound flange plate, the rear end face of the first compound flange plate is fixed with the front end of the second-stage energy-absorbing pipe, and; the tail end of the second compound energy absorption pipe is fixed with the front end face of the second compound flange plate, the inner diameter of the front end of the second compound energy absorption pipe is provided with a taper, the guide block is of an inverted frustum structure, the bottom of the inverted frustum is provided with a circular guide plate with the outer diameter matched with the inner diameter of the second compound energy absorption pipe, a buffer air spring is arranged inside the second compound energy absorption pipe, the tail portion of the buffer air spring is fixed with the front end face of the second compound flange plate, the tail end face of the second compound flange plate is fixed with the front end of the cylinder wall of the high-pressure air storage chamber, and the tail end of the cylinder wall of.
An air inlet one-way valve is arranged in the middle of the second compound flange plate, an air outlet one-way valve is arranged beside the middle of the second compound flange plate, and the second compound flange plate is connected with the buffer air spring.
And an air inlet device is arranged on one side of the cylinder wall of the high-pressure air storage chamber, and an emergency air leakage device is arranged on the other side of the cylinder wall of the high-pressure air storage chamber.
And a honeycomb aluminum plate is arranged in the primary energy absorption pipe. The high-pressure gas entering the high-pressure gas storage chamber through the gas inlet device is filled into the air buffer spring through the gas inlet one-way valve and expands the air buffer spring. The first-stage energy absorption pipe and the honeycomb aluminum plate are folded and deformed to extrude the first compound flange plate, the front end of the guide pressing block is connected with the bottom surface of the first compound flange plate to continue to extrude the second-stage energy absorption pipe, the second-stage energy absorption pipe is folded and deformed, the guide pressing block is of an inverted cone-shaped structure to increase inner wall friction resistance and extrude along the inner wall of the energy absorption pipe, the guide pressing block continues to extrude the air buffer spring, the internal pressure of the air buffer spring is increased, the deformed air buffer spring absorbs energy, the deformed air buffer spring reaches critical pressure of the air outlet one-way valve after continuing to extrude the deformed air buffer spring, the air outlet one-way valve opens air to enter the high-pressure air storage chamber, the released air does work to absorb energy, and when the impact energy greatly exceeds the safe pressure of the high-pressure air storage.
Through the technical scheme, the multistage buffering energy absorption device provided by the invention fully utilizes the characteristics that after collision, the primary energy absorption pipe and the honeycomb aluminum plate absorb energy, the secondary energy absorption pipe and the guide pressure block absorb energy through friction, the air buffer spring and the air outlet check valve are combined, the pressure in a deformation body is extruded by the air buffer spring to be instantly increased, the critical value of the air outlet check valve is reached, and gas is immediately released to achieve the purpose of energy absorption, the air buffer spring has the reliability, the emergency pressure relief device can release gas to apply work to absorb energy, and meanwhile, the high-pressure air storage chamber is protected from being damaged. The invention converts the collision impact damage process of the rolling stock into the processes of energy absorption of the energy absorption pipe and the honeycomb aluminum plate and energy release of compression blasting, thereby protecting the damage caused by the collision of the rolling stock.
Compared with the prior art, the advantages and effects are as follows:
The energy absorption device provided by the invention is formed by combining the traditional energy absorption pipe and the air buffer spring, the huge energy generated by impacting the anti-climbing teeth extrudes the energy absorption pipe and the honeycomb aluminum plate and continuously extrudes the energy absorption pipe and the honeycomb aluminum plate to the air spring, so that the internal pressure of the air buffer spring is increased, the deformed air buffer spring absorbs energy, the energy absorbed by the air buffer spring is released by gas release, the energy storage of the gas is realized by fully utilizing the compressible property of the gas, and the energy absorption device has the characteristic of quick response. The invention has the characteristics of simple structure, strong practicability and high reliability, and provides important test support for the development of new products of the energy absorption device of the high-speed train carrying tool.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention.
Detailed Description
In order to better understand the technical solution of the present invention, the following further describes the present invention with reference to the accompanying drawings and examples.
The invention relates to a compressed gas multi-stage buffering energy-absorbing device, which is shown in figure 1; the multistage buffering energy-absorbing device is installed at the front end of the train through the installation plate 1. When the multi-stage buffering energy absorption device is in a working state, firstly, gas is filled into the high-pressure gas storage chamber 2 through the gas inlet device 3, and then the gas in the high-pressure gas storage chamber 2 is filled into the buffering air spring 7 through the gas inlet one-way valve 4 on the second compound flange 6. When collision occurs, the anti-climbing teeth 11 are impacted, the whole device is subjected to huge impact force, the primary energy absorption pipe 12 connected with the bottom surface of the anti-climbing teeth 11 and the honeycomb aluminum plate 10 which is positioned in the primary energy absorption pipe 12 and is completely filled are extruded, the primary energy absorption pipe 12 and the honeycomb aluminum plate 10 are extruded after being folded and deformed by impact force, the first compound flange 9 and the guide pressing block 8 fixed with the lower surface of the first compound flange 9 are extruded, the guide pressing block 8 continuously extrudes the secondary energy absorption pipe 13, the secondary energy absorption pipe 13 is folded and deformed, because the lower end of the guide pressing block 8 is connected with the inner wall of the secondary energy absorption pipe 13, the guide pressing block 8 is driven to move, the guide pressing block 8 continuously extrudes the buffer air spring 7, the internal pressure of the extruded buffer air spring 7 is increased, the deformed air spring 7 absorbs energy, and reaches the critical pressure of the air outlet one-way valve, the air outlet one-way valve 5 is opened to enable air to enter the high-pressure air storage chamber 2, the released air does work to absorb energy, the emergency air release valve 14 is opened after impact energy greatly exceeds the safe pressure of the air storage chamber to release the high-pressure air outwards, the safety of the air storage chamber is protected, and if the air released by the air outlet valve does not reach the critical pressure of the high-pressure air storage chamber, the air can flow upwards through the air inlet one-way valve 4 again to be recycled.
Claims (3)
1. The utility model provides a multistage buffering energy-absorbing device, includes mounting panel (1), anti-creep tooth (11), one-level energy-absorbing pipe (12) and second grade energy-absorbing pipe (13), mounting panel (1) is fixed at the vehicle tip through the bolt, and the inboard of anti-creep tooth (11) is fixed with the front end of one-level energy-absorbing pipe (12), and the tail end is fixed with the preceding terminal surface of first compound ring flange (9), and the rear end face of first compound ring flange (9) is fixed with the front end of second grade energy-absorbing pipe (13), its characterized in that: a honeycomb aluminum plate (10) is arranged in the primary energy absorption pipe (12); the tail end of the second-stage energy absorption pipe (13) is fixed to the front end face of the second compound flange (6), the inner diameter of the front end of the second-stage energy absorption pipe (13) is provided with a taper, the guide block (8) is of an inverted frustum structure, the inverted frustum bottom is provided with a circular guide plate with the outer diameter matched with the inner diameter of the second-stage energy absorption pipe (13), an air buffer spring (7) is arranged inside the second-stage energy absorption pipe (13), the tail portion of the air buffer spring (7) is fixed to the front end face of the second compound flange (6), the tail end face of the second compound flange (6) is fixed to the front end of the cylinder wall of the high-pressure air storage chamber (2), and the tail end of the cylinder wall of the high-pressure air storage chamber (2) is fixed to the.
2. The multi-stage energy-absorbing buffer device as claimed in claim 1, wherein: an air inlet one-way valve (4) is arranged in the middle of the second compound flange plate (6), and an air outlet one-way valve (5) is arranged beside the middle of the second compound flange plate and connected with an air buffer spring (7).
3. The multi-stage energy-absorbing buffer device as claimed in claim 1, wherein: an air inlet device (3) is arranged on one side of the cylinder wall of the high-pressure air storage chamber (2), and an emergency air leakage device (14) is arranged on the other side of the cylinder wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910861917.3A CN110550063B (en) | 2019-09-12 | 2019-09-12 | Multistage buffering energy-absorbing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910861917.3A CN110550063B (en) | 2019-09-12 | 2019-09-12 | Multistage buffering energy-absorbing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110550063A true CN110550063A (en) | 2019-12-10 |
| CN110550063B CN110550063B (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910861917.3A Active CN110550063B (en) | 2019-09-12 | 2019-09-12 | Multistage buffering energy-absorbing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113104057A (en) * | 2021-04-23 | 2021-07-13 | 江苏车瑞智能装备有限公司 | High-safety long-life rail vehicle accessory |
| CN114084191A (en) * | 2021-10-22 | 2022-02-25 | 西南交通大学 | Rail transit vehicle contact integral type buffering energy-absorbing device |
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| EP1172261A1 (en) * | 2000-07-12 | 2002-01-16 | Alstom | Venting means for an inflatable element and vehicle protection device provided with same |
| EP1358091A1 (en) * | 2001-01-11 | 2003-11-05 | Ford Motor Company, Inc. | Bumper airbag and system |
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| CN102874275A (en) * | 2012-10-19 | 2013-01-16 | 中铁第四勘察设计院集团有限公司 | Air spring buffer car stop |
| CN103507823A (en) * | 2012-06-25 | 2014-01-15 | 南车戚墅堰机车车辆工艺研究所有限公司 | Traction buffer device |
| CN104417578A (en) * | 2013-09-06 | 2015-03-18 | Ta萨弗里有限公司 | A buffer |
| CN205292666U (en) * | 2015-12-08 | 2016-06-08 | 南车株洲电力机车有限公司 | Rail vehicle anticreeper |
| CN109050569A (en) * | 2018-09-30 | 2018-12-21 | 西南交通大学 | A kind of rail vehicle multistage energy absorption device |
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2019
- 2019-09-12 CN CN201910861917.3A patent/CN110550063B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1172261A1 (en) * | 2000-07-12 | 2002-01-16 | Alstom | Venting means for an inflatable element and vehicle protection device provided with same |
| EP1358091A1 (en) * | 2001-01-11 | 2003-11-05 | Ford Motor Company, Inc. | Bumper airbag and system |
| GB0715553D0 (en) * | 2004-02-10 | 2007-09-19 | Tenneco Automotive Operating | Air pressure proportional damper for shock absorber |
| CN103507823A (en) * | 2012-06-25 | 2014-01-15 | 南车戚墅堰机车车辆工艺研究所有限公司 | Traction buffer device |
| CN102874275A (en) * | 2012-10-19 | 2013-01-16 | 中铁第四勘察设计院集团有限公司 | Air spring buffer car stop |
| CN104417578A (en) * | 2013-09-06 | 2015-03-18 | Ta萨弗里有限公司 | A buffer |
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| CN109050569A (en) * | 2018-09-30 | 2018-12-21 | 西南交通大学 | A kind of rail vehicle multistage energy absorption device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113104057A (en) * | 2021-04-23 | 2021-07-13 | 江苏车瑞智能装备有限公司 | High-safety long-life rail vehicle accessory |
| CN113104057B (en) * | 2021-04-23 | 2022-09-20 | 苏州车瑞精密机械制造有限公司 | High-safety long-life rail vehicle accessory |
| CN114084191A (en) * | 2021-10-22 | 2022-02-25 | 西南交通大学 | Rail transit vehicle contact integral type buffering energy-absorbing device |
| CN114084191B (en) * | 2021-10-22 | 2022-10-18 | 西南交通大学 | Rail transit vehicle contact integral type buffering energy-absorbing device |
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| Publication number | Publication date |
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| CN110550063B (en) | 2020-07-31 |
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