CN102442327A - Multi-level floating type anti-collision energy absorbing device for rail vehicles - Google Patents
Multi-level floating type anti-collision energy absorbing device for rail vehicles Download PDFInfo
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- CN102442327A CN102442327A CN2011103413515A CN201110341351A CN102442327A CN 102442327 A CN102442327 A CN 102442327A CN 2011103413515 A CN2011103413515 A CN 2011103413515A CN 201110341351 A CN201110341351 A CN 201110341351A CN 102442327 A CN102442327 A CN 102442327A
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Abstract
The invention discloses a multi-level floating type anti-collision energy absorbing device for rail vehicles, which comprises an end piston and more than two floating pistons independently placed in a cylinder. Elastic positioning mechanisms for jacking the lateral sides of the edges of the floating pistons are radially arranged on the inner wall of the cylinder at positions corresponding to the floating pistons. The floating pistons divide the cylinder into a plurality of independent closed air chambers, the floating pistons and the cylinder form a plurality of moving piston mechanisms without piston rods, the closed air chambers are communicated with a pressurizing air pipe arranged outside the cylinder, and each piston is provided with a normally closed through hole of an elastic rupture disk. By means of the multi-level floating type anti-collision energy absorbing device, the collision impact damaging process of rail vehicles can be converted into compressed air energy storage in multi-level floating air chambers to realize three steps of buffering of peak momentum, grading of compressed air according to energy to release fluctuation energy and releasing of remnant energy deforming damage, and thereby damages of rigid collision and peak momentum in collision of rail vehicles can be effectively avoided.
Description
Technical field
The present invention relates to the guideway vehicle technical field, particularly rolling stock collision energy-absorbing and the fender guard of effectively releasing ability.
Background technology
Except that to the safety of circuit and vehicle itself, the reliability consideration, also is an important research contents because specific factor causes the rolling stock influence that rolling stock is produced that bumps for the rolling stock safety research.Because rolling stock is different with other lightweight transportation means, rolling stock has characteristics such as inertia is big, energy is high, impact wreckage property is strong.At present, the collision compression set that lays particular emphasis on through specific components and parts (like thin-wall part) for this project Study on Technology absorbs energy, and the size that absorbs energy depends on factors such as the structure of being out of shape components and parts, size, material.Wherein deformation element is by collision contact beginning, and when element produced distortion, the impact energy of rolling stock is the major part body part that has been delivered to rolling stock, destroys having produced largely, and the safety of vehicle has received great influence.The objective of the invention is through adopting the hard and soft energy-absorbing mode of taking into account, set up the safety collision device that a kind of flexible contact and Energy Controllable discharge, reduce the extent of damage of rolling stock collision, ensure and transport the safety of taking advantage of personnel's life, property.
Summary of the invention
In view of the above deficiency of prior art, the purpose of this invention is to provide a kind of when collide based on rolling stock to collision energy carry out the segmentation contact receive can with the anti-fender guard that hits of quantization of amplitude release.
The objective of the invention is to realize through following means:
Multistage floating type rolling stock is anti-to hit energy absorption device, it is characterized in that, separates the floating piston that independently is positioned in the cylinder body by an end piston and more than two and forms; In the cylinder body with respect to the elastic positioning machine structure that radially is provided with side, roof pressure floating piston edge on the casing wall of each floating piston position; Each floating piston is divided into a plurality of independently closed air chambers with cylinder body, and constitutes the piston mechanisms that move about of organizing piston-rodless with cylinder more, and each closed air chamber communicates with the outer set pressurization air pipe of cylinder body; Each piston is provided with the normally closed through hole of elasticity rupture disk.
Employing apparatus of the present invention are converted into multistage unsteady air chamber pressure gas energy storage realization peak value momentum buffering and the process of pressure gas by three grades of substeps of release of energy level split pole Wave energy and the release of complementary energy deformation failure with the collision impact destructive process of rolling stock; Thereby rigid collision and the harm of peak value momentum of protecting rolling stock when bumping, to be caused effectively; Realized to the segmentation of collision impact energy, quantitatively conversion with discharge, farthest slow down and eliminate rolling stock and collide personnel and the material damage that is brought.
Description of drawings is following:
Fig. 1 uses the anti-structural representation that hits energy absorption device of the multistage floating type rolling stock of the present invention.
Fig. 2 be among Fig. 1 B to view.
Fig. 3 is an A-A cutaway view among Fig. 1.
Fig. 4 is an I portion partial enlarged drawing among Fig. 1.
Fig. 5 is an II portion partial enlarged drawing among Fig. 1.
Fig. 6 is the shaft side figure of end piston.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Can find out in conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6; Apparatus of the present invention comprise: bump contact block 1, end piston 3, cylinder 8, cylinder end piece 5, floating piston 9,10,12 and cylinder bottom contact block 13; Cylinder bottom contact block 13 is connected with cylinder 8 through bolt assembly 14, and 40 is cylinder rack.Floating piston 9,10,12 and end piston 3 encapsulations are in cylinder 8, and floating piston 9,10,12 and piston 3 encapsulations are within cylinder 8, and said each piston ring is to being provided with seal ring 15.End piston 3 is connected with bump contact block 1 through screw 2.Its medial end portions piston 3 passes cylinder end piece 5 intermediate throughholes, and cylinder end piece 5 is provided with the seal ring 4 of realizing forming with end piston 3 dynamic seal (packing).Cylinder end piece 5 is connected through bolt assembly 7 with cylinder 8, and is provided with seal ring 6 between the two.Be respectively equipped with the normally closed through hole of four flexible rupture disks on floating piston 9,10,12 and the end piston 3, as shown in Figure 5, through hole one side has been installed rupture disk 30, and the rupture disk 30 that covers normally closed through hole 31 is fixed through bolt assembly 28 by annular pressing plate 29.In the cylinder body with respect to the elastic positioning machine structure that radially is provided with side, roof pressure floating piston edge on the casing wall of each floating piston position; This elastic positioning machine structure is arranged on floating piston 9,10,12 both sides; Piston 3 positions can be established and can not established; Its concrete structure is as shown in Figure 4, and this location structure is made up of round end locating dowel pin 27, holddown spring 16, seal strip 17, holddown spring top cover 18 and housing screw 19, and evenly is provided with three groups along cylinder 8 peripheral radials; Holddown spring 16 1 ends are set on the round end locating dowel pin 27; Other end top step in holddown spring top cover 18 is provided with seal strip 17 between holddown spring top cover 18 and cylinder 8 stepped holes, and is fixed through upper end housing screw 19; Make side, round end locating dowel pin 27 roof pressure floating piston edge; Can see that hereinafter the dynamics that compresses of holddown spring should debug suitable degree, guaranteeing piston when receiving enough big axial thrust, the tangential force of piston end surface can be radially with round end locating dowel pin 27 outwards releases with the release piston longitudinal travel.Also can find out by Fig. 4; Pressurization (gas) pipeline 11 is connected through the aerating valve member with cylinder 8; This aerating valve member is made up of holddown spring 26, cone seal plug 24, cone seal plug briquetting 25, double end through hole joint 20, seal strip 23,22 and attaching parts 21, and wherein holddown spring 26 1 ends are connected with cone seal plug briquetting 25, and the other end is positioned in the interior stepped hole of cylinder 8 induction openings; Cone seal plug 24 flush ends and cone seal plug briquetting 25 bond together; Cone seal plug 24 conical surfaces and 20 times end in contact of double end through hole joint, double end through hole joint 20 lower ends screw in cylinder 8 induction openings, are provided with seal strip 23 between double end through hole joint 20 upper end end faces and pressurization (gas) pipeline 11; Be provided with seal strip 22 between pressurization (gas) pipeline 11 and the attaching parts 21, attaching parts 21 and double end through hole joint 20 upper ends are through being threaded.
During installation,,, be stuck between the two-side elastic detent mechanism, carry out pre-determined bit until contacting with the locating dowel pin of leftmost side elastic positioning machine structure in the cylinder 8 earlier with in floating piston 12 propulsion cylinders 8; Secondly with floating piston 10 and the floating piston 9 predetermined elastic positioning machine structure shown in Figure 1 positions that are positioned at; Piston 3 is pushed near the cylinder end piece of the rightmost side.
Before the use, device left end and bottom cylinder support are fixed on the rolling stock head, through pressurization (gas) pipeline 11 (generally with rolling stock on compressor be connected) simultaneously to cylinder 8 each sealed air chamber's interpolation certain pressure gas (non-combustible gas).During ventilation; Double end through hole joint 20 lower end air pressure are higher than cylinder 8 internal gas pressures; Gas overcomes cylinder 8 internal gas pressures and holddown spring 26 thrusts, pushes cone seal plug 24 each air chamber pressurization in cylinder 8 open, when air chamber internal pressure and pressurization (gas) pipeline 11 air pressure balances; Cone seal plug 24 and the sealing of double end through hole joint 20 lower ends, gas circuit is cut off.When air chamber pressure in the cylinder 8 reduced, air valve was opened automatically, and in air chamber make-up gas.
During use, when collision thing contact impact contact block 1, impulsive force is delivered on the piston 3, piston 3 compression left side air chambers, and when pressure increased to a certain degree, floating piston 9 overcame the left side flexible shaft to position constraint and compression left side air chamber.Equally, pressure is passed to cylinder 8 leftmost side air chambers, and each air chamber gaseous tension is transmitted and be converted into to impact energy, and temperature raises and accomplishes the storage of portion of energy, and at this moment, floating piston 9,10,12 is in left and right sides quick condition.When impacting further the reinforcement, each air-pressure chamber gaseous tension continues to raise, when pressure surpasses the compressive strength limit of set rupture disk 30 on the end piston 3, and rupture disk 30 explosions, energy is arrived non-compression zone, piston 3 right sides by rapid release.Piston 3 is broken through air resistance this moment, contacts with floating piston 9 fast and continues to compress each air chamber gas of floating piston 9 left sides.Equally, when pressure surpasses the compressive strength limit of set rupture disk 30 on the floating piston 9, rupture disk 30 explosions, energy is arrived floating piston 9 (end piston 3) non-compression zone, right side by rapid release.So circulation, set rupture disk 30 breaks on floating piston 12, floating piston 12,10,9 and end piston 3 folded overweighting on the cylinder bottom contact block 13, this moment, each air chamber absorbed energy all discharged completion.Therebetween, in end piston 3, floating piston 9,10,12 compression processs, when the pressure out of reach breaks whole rupture disks, end piston 3 will stop at the cylinder certain position, and along with rolling stock moving situation piston has certain left and right displacement.When impact energy is excessive; All rupture disks break, and make floating piston 12,10,9 and end piston 3 folded overweighting on the cylinder bottom contact block 13, as also having dump energy; Floating piston 12,10,9 will produce plastic deformation and absorb more energy owing to be the shell part.
Wherein should note; When collision takes place; Each air chamber pressure is apparently higher than pressurization (gas) pipeline 11 air pressure in the cylinder 8; Cylinder 8 internal gas pressures will press cone seal plug 24, combined closely and enhanced leaktightness in itself and double end through hole joint 20 lower ends, and cylinder 8 inner high voltage gases can oppositely not cause damage to supply air line and gas compressing equipment.
Employing apparatus of the present invention are converted into multistage unsteady air chamber pressure gas energy storage realization peak value momentum buffering and the process of pressure gas by three grades of substeps of release of energy level split pole Wave energy and the release of complementary energy deformation failure with the collision impact destructive process of rolling stock; Thereby rigid collision and the harm of peak value momentum of protecting rolling stock when bumping, to be caused effectively; Realized to the segmentation of collision impact energy, quantitatively conversion with discharge, farthest slow down and eliminate rolling stock and collide personnel and the material damage that is brought.
Apparatus of the present invention can be on the basis of above-mentioned three floating pistons 12,10,9, in conjunction with the size of the structural adjustment cylinder 8 of rolling stock and the number of floating piston, and the intensity index of rupture disk, realize that the collision energy-absorbing of serial energy level and energy discharge.For more effectively multistage unsteady air chamber pressure gas energy storage being realized peak value momentum buffering; Relative position relation by end piston and floating piston; The compressive strength of elasticity rupture disk is strengthened by the cylinder cylinder bottom that enters the mouth successively, and the compressive strength of elasticity rupture disk is the highest on the cylinder bottom floating piston.
Gas compression energy-absorbing of the present invention and explosion are released the flexible anti-collision device of ability except that being used for the rolling stock end, also can be applicable to the collision system of railway carriage end, also can be applicable to the collision system of Ordinary road vehicle.
Claims (4)
1. multistage floating type rolling stock is anti-to hit energy absorption device, it is characterized in that, separates the floating piston that independently is positioned in the cylinder body by an end piston and more than two and forms; In the cylinder body with respect to the elastic positioning machine structure that radially is provided with side, roof pressure floating piston edge on the casing wall of each floating piston position; Each floating piston is divided into a plurality of independently closed air chambers with cylinder body, and constitutes the piston mechanisms that move about of organizing piston-rodless with cylinder more, and each closed air chamber communicates with the outer set pressurization air pipe of cylinder body; Each piston is provided with the normally closed through hole of elasticity rupture disk.
According to claim 1 said more than the anti-energy absorption device that hits of the floating type rolling stock of level; It is characterized in that; Relative position relation by end piston and floating piston; The compressive strength of elasticity rupture disk is strengthened by the cylinder cylinder bottom that enters the mouth successively, and the compressive strength of elasticity rupture disk is the highest on the cylinder bottom floating piston.
3. the floating type rolling stock of level is anti-more than said according to claim 1 hits energy absorption device, it is characterized in that, said pressurization air pipe is provided with in the presses that communicates with the cylinder body closed air chamber and reversely explosion-proofly adds air valve with level pressure.
4. the floating type rolling stock of level is anti-more than said according to claim 1 hits energy absorption device, it is characterized in that the normally closed through hole of flexible rupture disk is provided with at least one on said each piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110341351.5A CN102442327B (en) | 2011-11-02 | 2011-11-02 | Multi-level floating type anti-collision energy absorbing device for rail vehicles |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110341351.5A CN102442327B (en) | 2011-11-02 | 2011-11-02 | Multi-level floating type anti-collision energy absorbing device for rail vehicles |
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| CN102442327A true CN102442327A (en) | 2012-05-09 |
| CN102442327B CN102442327B (en) | 2014-02-19 |
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| CN201110341351.5A Expired - Fee Related CN102442327B (en) | 2011-11-02 | 2011-11-02 | Multi-level floating type anti-collision energy absorbing device for rail vehicles |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106004917A (en) * | 2016-05-13 | 2016-10-12 | 北京交通大学 | Multistage collision energy absorption rail guard |
| CN106314332A (en) * | 2015-12-30 | 2017-01-11 | 中南大学 | Automobile collision buffer device with pneumatic and hydraulic joint action |
| CN106314331A (en) * | 2015-12-30 | 2017-01-11 | 中南大学 | Automobile collision buffer device with pneumatic and hydraulic joint action |
| CN106585658A (en) * | 2016-12-14 | 2017-04-26 | 安徽德耐孚汽车减震科技技术有限公司 | Automobile-used rubber buffer |
| CN109050569A (en) * | 2018-09-30 | 2018-12-21 | 西南交通大学 | A kind of rail vehicle multistage energy absorption device |
| CN109538940A (en) * | 2019-01-25 | 2019-03-29 | 中国工程物理研究院总体工程研究所 | The quick-fried formula gas delivery system of multi-cavity sequence |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4030037A1 (en) * | 1990-09-22 | 1992-03-26 | Boge Ag | Vehicle shock absorber with two pipes moving inside each other - has gas compartment, separating piston, liq. compartment, piston and annular gaps |
| CN2252906Y (en) * | 1996-05-07 | 1997-04-23 | 骆永志 | Impact energy absorber |
| US20090084643A1 (en) * | 1998-12-18 | 2009-04-02 | Richard Bugaj | Shock absorber |
| CN201580340U (en) * | 2009-12-25 | 2010-09-15 | 凌建军 | Motor vehicle collision device with jet energy consumer |
| CN202320365U (en) * | 2011-11-02 | 2012-07-11 | 西南交通大学 | Multistage floating type crash resisting and energy absorbing device for rolling stock |
-
2011
- 2011-11-02 CN CN201110341351.5A patent/CN102442327B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4030037A1 (en) * | 1990-09-22 | 1992-03-26 | Boge Ag | Vehicle shock absorber with two pipes moving inside each other - has gas compartment, separating piston, liq. compartment, piston and annular gaps |
| CN2252906Y (en) * | 1996-05-07 | 1997-04-23 | 骆永志 | Impact energy absorber |
| US20090084643A1 (en) * | 1998-12-18 | 2009-04-02 | Richard Bugaj | Shock absorber |
| CN201580340U (en) * | 2009-12-25 | 2010-09-15 | 凌建军 | Motor vehicle collision device with jet energy consumer |
| CN202320365U (en) * | 2011-11-02 | 2012-07-11 | 西南交通大学 | Multistage floating type crash resisting and energy absorbing device for rolling stock |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106314332A (en) * | 2015-12-30 | 2017-01-11 | 中南大学 | Automobile collision buffer device with pneumatic and hydraulic joint action |
| CN106314331A (en) * | 2015-12-30 | 2017-01-11 | 中南大学 | Automobile collision buffer device with pneumatic and hydraulic joint action |
| CN106004917A (en) * | 2016-05-13 | 2016-10-12 | 北京交通大学 | Multistage collision energy absorption rail guard |
| CN106004917B (en) * | 2016-05-13 | 2018-06-29 | 北京交通大学 | A kind of multistage collision energy-absorbing pilot |
| CN106585658A (en) * | 2016-12-14 | 2017-04-26 | 安徽德耐孚汽车减震科技技术有限公司 | Automobile-used rubber buffer |
| CN109050569A (en) * | 2018-09-30 | 2018-12-21 | 西南交通大学 | A kind of rail vehicle multistage energy absorption device |
| CN109050569B (en) * | 2018-09-30 | 2023-12-22 | 西南交通大学 | Multistage energy absorbing device of rail vehicle |
| CN109538940A (en) * | 2019-01-25 | 2019-03-29 | 中国工程物理研究院总体工程研究所 | The quick-fried formula gas delivery system of multi-cavity sequence |
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| Publication number | Publication date |
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| CN102442327B (en) | 2014-02-19 |
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