CN109398403B - Radially protuberance deforms energy absorption device and application method, the rail vehicle with it to thin-wall tube - Google Patents
Radially protuberance deforms energy absorption device and application method, the rail vehicle with it to thin-wall tube Download PDFInfo
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- CN109398403B CN109398403B CN201811220470.3A CN201811220470A CN109398403B CN 109398403 B CN109398403 B CN 109398403B CN 201811220470 A CN201811220470 A CN 201811220470A CN 109398403 B CN109398403 B CN 109398403B
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- thin
- top cover
- energy absorbing
- cover board
- guide post
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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
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- Mechanical Engineering (AREA)
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Abstract
The invention discloses a kind of thin-wall tube, radially protuberance deforms energy absorption device and application method, with its rail vehicle, wherein radially protuberance deformation energy absorption device includes: top cover board to thin-wall tube, it is mounted on train body chassis, top cover board is annular in shape, and inside is equipped with multiple mutagenesis teeth extended to top cover plate central；Guide plate pedestal, guide plate pedestal are equipped with guide post, and guide post is passed through in the collide inner cavity of the top Shi Nengcong cover board of train；Thin-walled flow energy absorbing tube, it is set in guide post; the internal diameter of thin-walled flow energy absorbing tube is equal or slightly larger than the width of guide post; in the inner cavity of thin-walled flow energy absorbing tube and guide post far from one end insertion top cover board of guide plate pedestal, mutagenesis tooth when train collides for making thin-walled flow energy absorbing tube that protuberance plastic deformation radially occur.Radially protuberance deformation energy absorption device energy-absorbing effect is good for the thin-wall tube, and active force is steady, and most of component is reusable.
Description
Technical field
The present invention relates to train collision energy absorption device technical fields, and in particular to a kind of thin-wall tube radial direction protuberance deformation energy-absorbing
Device and application method, the rail vehicle with it.
Background technique
The Crash of Railway Passenger Vehicles accident frequently occurred both at home and abroad, has brought heavy and bitter lesson.Especially
Recently as the continuous rise of road surface tramcar, collision on the ground probability is greatly increased.Railway is important as national economy
Infrastructure and mass transportation should be transported using the security of the lives and property of protection passenger and driver and conductor as rail traffic always
The starting point of row safety.Therefore, it when train collision accident not can avoid, needs development rail truck passive security protection and grinds
Study carefully.
In vehicle collisions, due to the needs of security protection, impact kinetic energy will be absorbed or dissipate completely, therefore need
It will be using special element as energy absorbing structure, to meet the crash-worthiness requirement of vehicle structure.One design is good resistance to
Hitting property structure, which must controllably be absorbed or be dissipated, all hits kinetic energy, in these of material and structure energy absorption machine
In system, metal thin-wall structure and aluminum honeycomb structure are obtained as a kind of inexpensive, high ratio of strength to weight, the endergonic structure of high energy absorbing efficiency
Extensive practical application is arrived.
However, the energy-absorbing effect and active force stationarity of existing train collision energy absorption device still need to be further increased,
And existing train collision energy absorption device usually needs to replace whole device after a single use, can not reuse.
Summary of the invention
The main purpose of the present invention is to provide a kind of thin-wall tubes radially to swell deformation energy absorption device and application method, has
Its rail vehicle, to solve, train collision energy absorption device energy-absorbing effect in the prior art and active force stationarity be bad, nothing
The problem of method is reused.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of radially protuberance deformation suction of thin-wall tube
Energy device, comprising: top cover board is mounted on train body chassis, and top cover board is annular in shape, and inside is equipped with multiple to top
The mutagenesis tooth that cover plate central extends；Guide plate pedestal, guide plate pedestal are equipped with guide post, and guide post is when train collides
It can be passed through from the inner cavity of top cover board；Thin-walled flow energy absorbing tube, is set in guide post, and the internal diameter of thin-walled flow energy absorbing tube is equal to
Or one end insertion top cover board of the width slightly larger than guide post, thin-walled flow energy absorbing tube and guide post far from guide plate pedestal
In inner cavity, mutagenesis tooth when train collides for making thin-walled flow energy absorbing tube that protuberance plastic deformation radially occur.
Further, the cross section of guide post is cross, and multiple mutagenesis teeth are circumferentially laid along the inner wall of top cover board
It sets, and multiple mutagenesis teeth and the four edges of cross guide post are staggered, multiple mutagenesis teeth are close to top cover plate central
The circle diameter that one end surrounds is less than the outer diameter of thin-walled flow energy absorbing tube.
Further, mutagenesis tooth is bevel structure close to the side of thin-walled flow energy absorbing tube and guide post.
Further, round and smooth processing is passed through in one end that mutagenesis tooth stretches to top cover plate central, is arc structure.
Further, the outside of top cover board is equipped with multiple flanges, is provided on flange for top cover board to be mounted on column
Installation screw on vehicle vehicle body bottom frame.
Further, mutagenesis tooth and flange are an integral molding structure with top cover board.
Further, the guide plate pedestal side opposite with connection guide post is equipped with anti-climbing tooth, anti-climbing tooth and guide plate bottom
Seat is an integral molding structure.
According to another aspect of the present invention, a kind of application side of above-mentioned thin-wall tube radial direction protuberance deformation energy absorption device is provided
Method, the application method the following steps are included:
S1, top cover board is mounted on train body chassis, thin-walled flow energy absorbing tube is set in guide post and is incited somebody to action
In the inner cavity of thin-walled flow energy absorbing tube and guide post insertion top cover board, the guide plate pedestal side court opposite with connection guide post
To the front of rail vehicle；
S2, rail vehicle occur head-on crash when, impact force of the guide plate pedestal by longitudinal direction, push guide post
It moves longitudinally and drives thin-walled flow energy absorbing tube towards top cover board longitudinal movement, thin-walled flow energy absorbing tube and mutagenesis toe joint
Touching；
S3, continue longitudinal movement with thin-walled flow energy absorbing tube, mutagenesis tooth, which constantly inwardly squeezes thin-walled flow energy absorbing tube, to be made
Radial protuberance deformation occurs for thin-walled flow energy absorbing tube, finally forms a plurality of plastic deformation ditch in the side wall of thin-walled flow energy absorbing tube
Slot, meanwhile, the position that thin-walled flow energy absorbing tube is contacted with guide post in protuberance deformation process is drawn by biaxial tension effect
Plastic deformation is stretched, protuberance plastic deformation, stretching plastic deformation and the rubbing between mutagenesis tooth of thin-walled flow energy absorbing tube are passed through
It wipes energy-absorbing function and absorbs guide plate pedestal bring impact kinetic energy jointly, while giving guide plate pedestal with stable reaction
Power.
According to another aspect of the invention, a kind of rail vehicle, including train body, the vehicle of the train body are provided
Body chassis front end is equipped with above-mentioned thin-wall tube radially protuberance deformation energy absorption device.
Further, the vehicle body bottom frame front end of the train body is equipped with the radially protuberance deformation suction of multiple thin-wall tubes
Energy device, and radially protuberance deformation energy absorption device is arranged symmetrically multiple thin-wall tubes along the center line of vehicle body bottom frame structure.
It applies the technical scheme of the present invention, by top cover board, by the thin-wall tube, radially protuberance deformation energy absorption device is mounted on
On train body chassis, guide plate pedestal is towards the front of rail vehicle；When rail vehicle collides, guide plate pedestal
By the impact force of longitudinal direction, pushes guide post to move longitudinally and drive thin-walled flow energy absorbing tube towards top cover board longitudinal direction
Movement, thin-walled flow energy absorbing tube and mutagenesis tooth contact；As thin-walled flow energy absorbing tube continues longitudinal movement, mutagenesis tooth is constantly inside
Squeezing thin-walled flow energy absorbing tube makes thin-walled flow energy absorbing tube that radial protuberance deformation occur, finally in the side of thin-walled flow energy absorbing tube
Wall forms a plurality of plastic deformation groove, meanwhile, the position that thin-walled flow energy absorbing tube is contacted with guide post in protuberance deformation process
It is acted on by biaxial tension and stretching plastic deformation occurs, pass through the protuberance plastic deformation of thin-walled flow energy absorbing tube, stretching plastic deformation
And the friction energy-absorbing function between mutagenesis tooth absorbs guide plate pedestal bring impact kinetic energy jointly, while giving guide plate
Pedestal is with stable reaction force.When colliding, radially protuberance deformation energy absorption device can pass through the thin-wall tube well
The orderly controllable METHOD FOR LARGE DEFORMATION ELASTOPLASTIC of thin-walled flow energy absorbing tube absorbs shock loading, converts the impact of collision of guide plate pedestal to
The metamorphosis of thin-walled flow energy absorbing tube, energy-absorbing effect is good, and active force is steady；Also, radially protuberance deforms energy-absorbing to the thin-wall tube
Device needs to change that new thin-walled flow energy absorbing tube is i.e. reusable, and no replacement is required for other components using rear.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is that the thin-wall tube of the embodiment of the present invention radially swells the structural schematic diagram of deformation energy absorption device.
Fig. 2 is that the thin-wall tube of the embodiment of the present invention radially swells the decomposition texture schematic diagram of deformation energy absorption device.
Fig. 3 is that the thin-wall tube of the embodiment of the present invention radially swells the structural schematic diagram of top cover board in deformation energy absorption device.
Fig. 4 is that the thin-wall tube structure that radially protuberance deforms thin-walled flow energy absorbing tube in energy absorption device of the embodiment of the present invention is shown
It is intended to.
Fig. 5 is that the thin-wall tube of the embodiment of the present invention radially swells guide plate pedestal, guide post in deformation energy absorption device and prevents
The structural schematic diagram of climbing tooth.
Wherein, the above drawings include the following reference numerals:
10, top cover board；11, mutagenesis tooth；12, flange；13, installation screw；20, guide plate pedestal；21, guide post；22,
Anti- climbing tooth；30, thin-walled flow energy absorbing tube.
Specific embodiment
To facilitate the understanding of the present invention, the present invention is made below in conjunction with Figure of description and preferred embodiment more complete
Face meticulously describes, but the protection scope of the present invention is not limited to the following specific embodiments.
Unless otherwise defined, all technical terms used hereinafter and the normally understood meaning of those skilled in the art
It is identical." first ", " second " used in present patent application specification and claims and similar word are simultaneously
Any sequence, quantity or importance are not indicated, and are intended merely to facilitate and corresponding components are distinguished.Equally, " one
It is a " or the similar word such as " one " do not indicate that quantity limits, but indicate that there are at least one.The classes such as " connection " or " connected "
As word be not limited to physics or mechanical connection, but may include electrical connection, either it is direct also
It is indirect."upper", "lower", "left", "right" etc. are only used for indicating relative positional relationship, when the absolute position for being described object changes
After change, then the relative positional relationship also correspondingly changes.
Referring to Fig. 1 to Fig. 5, a kind of thin-wall tube of the embodiment of the present invention radially protuberance deformation energy absorption device, including top cover
Plate 10, guide plate pedestal 20 and thin-walled flow energy absorbing tube 30.Wherein, top cover board 10 is mounted on train body chassis, top
Cover board 10 is annular in shape, and inside is equipped with multiple mutagenesis teeth 11 extended to 10 center of top cover board；Guide plate pedestal 20, guide plate
Pedestal 20 is equipped with guide post 21, and guide post 21 is passed through in the collide inner cavity of the top Shi Nengcong cover board 10 of train；Thin-walled modeling
Becoming energy absorbing tube 30, is set in guide post 21, the internal diameter of thin-walled flow energy absorbing tube 30 is equal or slightly larger than the width of guide post 21,
In the inner cavity of thin-walled flow energy absorbing tube 30 and guide post 21 far from one end insertion top cover board 10 of guide plate pedestal 20, mutagenesis tooth
11 when train collides for making thin-walled flow energy absorbing tube 30 that protuberance plastic deformation radially occur.
Radially protuberance deformation energy absorption device radially swells thin-wall tube in use, passing through top cover board 10 above-mentioned thin-wall tube
Deformation energy absorption device is mounted on train body chassis, and guide plate pedestal 20 is towards the front of rail vehicle；In rail vehicle
When colliding, impact force of the guide plate pedestal 20 by longitudinal direction pushes guide post 21 to move longitudinally and drive thin-walled
Flow energy absorbing tube 30 is contacted towards 10 longitudinal movement of top cover board, thin-walled flow energy absorbing tube 30 with mutagenesis tooth 11；As thin-walled is moulded
Become energy absorbing tube 30 and continue longitudinal movement, mutagenesis tooth 11 constantly inwardly squeezes thin-walled flow energy absorbing tube 30 and brings it about radial protuberance
Deformation, finally forms a plurality of plastic deformation groove in the side wall of thin-walled flow energy absorbing tube 30；Meanwhile it is thin in protuberance deformation process
The position that wall flow energy absorbing tube 30 is contacted with guide post 21 is acted on by biaxial tension occurs stretching plastic deformation, passes through thin-walled flow
Protuberance plastic deformation, stretching plastic deformation and the friction energy-absorbing function between mutagenesis tooth 11 of energy absorbing tube 30 are absorbed jointly and are led
To 20 bring impact kinetic energy of board bottom seat, while guide plate pedestal 20 is given with stable reaction force.It, should when colliding
Radially protuberance deformation energy absorption device can pass through the orderly big change of controllable plasticity of thin-walled flow energy absorbing tube 30 to thin-wall tube well
Shape absorbs shock loading, converts the impact of collision of guide plate pedestal 20 to the metamorphosis of thin-walled flow energy absorbing tube 30, energy-absorbing
Effect is good, and active force is steady；When colliding, guide plate pedestal 20 can carry and homogenize longitudinal impact force to be transferred to
Vehicle body bottom frame, guide post 21 can play the guiding role to thin-walled flow energy absorbing tube 30, guide post 21 and guide plate pedestal 20 connected
It is integral to play the role of transmitting portions longitudinal force；The thin-wall tube radially only needs more after protuberance deforms energy absorption device use
The thin-walled flow energy absorbing tube 30 renewed is i.e. reusable, and no replacement is required for other components, saves material.
Referring to figure 1, figure 2 and figure 3, specifically, in the present embodiment, the cross section of guide post 21 is cross, mutagenesis tooth
11 quantity is four, and four mutagenesis teeth 11 are circumferentially uniformly arranged along the inner wall of top cover board 10, and four mutagenesis teeth 11 and ten
The four edges of the guide post 21 of font are staggered, i.e., mutagenesis tooth 11 is located between the adjacent two edges of guide post 21, set in this way
It sets, guide post 21 will not cause to stop to mutagenesis tooth 11.Multiple mutagenesis teeth 11 are surrounded close to the one end at 10 center of top cover board
Circle diameter is less than the outer diameter of thin-walled flow energy absorbing tube 30.In this way, thin-walled flow energy absorbing tube 30 is to mutagenesis tooth after colliding
11 longitudinal movements, mutagenesis tooth 11 inwardly squeeze thin-walled flow energy absorbing tube 30, thin-walled flow energy absorbing tube 30 are made to be recessed inwardly to form modeling
Property deformation groove.
In order to form plastic deformation groove preferably on thin-walled flow energy absorbing tube 30, referring to figure 1, figure 2 and figure 3, at this
In embodiment, bevel structure is set close to the side of thin-walled flow energy absorbing tube 30 and guide post 21 by mutagenesis tooth 11.Mutagenesis tooth
Bevel structure on 11 has certain guiding role, is conducive to controllably form depth in an orderly manner on thin-walled flow energy absorbing tube 30
The plastic deformation groove to match with the height of mutagenesis tooth 11, improving the thin-wall tube, radially protuberance deformation energy absorption device collides
When active force stationarity.Further, round and smooth processing is passed through in one end that mutagenesis tooth 11 stretches to 10 center of top cover board, is circular arc
Structure, is more conducive to being formed and is controllably plastically deformed groove in an orderly manner.
In order to facilitate the installation of, referring to figure 1, figure 2 and figure 3, in the present embodiment, the outside of top cover board 10 is equipped with multiple convex
Edge 12 offers installation screw 13 on flange 12.In use, being each passed through the installation spiral shell on multiple flanges 12 by more bolts
Top cover board 10 is mounted on train body chassis by hole 13.Radially protuberance deformation energy absorption device dismounts very entire thin-wall tube
It is convenient.Further, mutagenesis tooth 11 and flange 12 are an integral molding structure with top cover board 10.Overall structure is simpler, by
Power performance is more preferable.
Referring to Fig. 1, Fig. 2 and Fig. 5, in the present embodiment, the side opposite with guide post 21 is connect of guide plate pedestal 20 is set
Multiple anti-climbing teeth 22 are equipped with, and the anti-climbing tooth 22 is an integral molding structure with guide plate pedestal 20.By the way that anti-climbing tooth 22 is arranged,
When rail vehicle occurs mutually to hit, the anti-climbing tooth 22 on two trains can be intermeshed, and guided and carried out front between train
Impact and body end portion deformed to absorb huge impact energy, so prevent vehicle generation climb it is folded, topple etc. it is tight
Weight consequence reduces the loss such as casualties.
In an embodiment not shown of the invention, a kind of rail vehicle is provided, which includes train body,
The vehicle body bottom frame front end of train body is installed by above-mentioned thin-wall tube radially protuberance deformation energy absorption device.Pass through the vehicle in train body
Thin-wall tube of the invention radially protuberance deformation energy absorption device is installed in body chassis front end, when absorption rail vehicle collides well
Impact force, effectively reduce loss caused by collision accident.
In order to further increase the energy-absorbing effect of rail vehicle, causality loss is reduced, in the present embodiment, in train body
Vehicle body bottom frame front end multiple thin-wall tubes of the invention radially protuberance deformation energy absorption devices, also, multiple thin-wall tube are installed
Radial protuberance deformation energy absorption device is arranged symmetrically along the center line of vehicle body bottom frame structure.In this way, when vehicle body bottom frame can be made to collide
Stress is more balanced, and collision impact is more efficiently absorbed, and reduces causality loss.
Thin-wall tube of the invention radially swells the application method for deforming energy absorption device and working principle is as follows:
Installation screw 13 being passed through with bolt, top cover board 10 being mounted on train body chassis front end, top cover board 10 is pacified
On train body chassis, thin-walled flow energy absorbing tube 30 is set in guide post 21 and thin-walled flow energy absorbing tube 30 and will be led
It is inserted into column 21 in the inner cavity of top cover board 10, the side opposite with guide post 21 is connect of guide plate pedestal 20 is towards rail vehicle
Front；The internal diameter of thin-walled flow energy absorbing tube 30 is equal or slightly larger than the width of guide post 21, with thin-walled flow energy absorbing tube 30
It can securely be set in guide post 21 subject to will not dropping out；The outer diameter of thin-walled flow energy absorbing tube 30 is equal to or slightly less than top cover
The internal diameter of plate 10, thin-walled flow energy absorbing tube 30 of being subject to can securely be plugged in top cover board 10 and will not drop out；
When rail vehicle collides, impact force of the guide plate pedestal 20 by longitudinal direction pushes guide post 21 vertical
To movement and drive thin-walled flow energy absorbing tube 30 towards 10 longitudinal movement of top cover board, thin-walled flow energy absorbing tube 30 and mutagenesis tooth 11
Contact；
As thin-walled flow energy absorbing tube 30 continues longitudinal movement, mutagenesis tooth 11 constantly inwardly squeezes thin-walled flow energy absorbing tube
30, make thin-walled flow energy absorbing tube 30 that inside radial protuberance deformation occur, is finally formed in the side wall of thin-walled flow energy absorbing tube 30
A plurality of plastic deformation groove；Meanwhile in protuberance deformation process the position that is contacted with guide post 21 of thin-walled flow energy absorbing tube 30 by
Stretching plastic deformation occurs for biaxial tension effect, passes through the protuberance plastic deformation of thin-walled flow energy absorbing tube 30, stretching plastic deformation
And the friction energy-absorbing function between mutagenesis tooth 11 absorbs 20 bring impact kinetic energy of guide plate pedestal jointly, while giving and leading
To board bottom seat 20 with stable reaction force.
Radially protuberance deforms energy absorption device to the thin-wall tube, takes full advantage of the installation space in floor underframe for vehicle structure, will lead
The metamorphosis of thin-walled flow energy absorbing tube 30 is converted into the impact of collision of board bottom seat 20.When crashing, have
Sequence controllable METHOD FOR LARGE DEFORMATION ELASTOPLASTIC absorbs shock loading；Under normal operating conditions, the top cover board 10 in the device and guiding
Board bottom seat 20 also has certain bearing capacity, and overall structure has that energy-absorbing effect is good, active force is steady, easy to disassemble and again
The advantages of utilizing again.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. radially protuberance deforms energy absorption device to a kind of thin-wall tube characterized by comprising
Top cover board (10), is mounted on train body chassis, the top cover board (10) annularly, inside be equipped with it is multiple to
The mutagenesis tooth (11) that top cover board (10) center extends；
Guide plate pedestal (20), the guide plate pedestal (20) are equipped with guide post (21), and the guide post (21) is sent out in train
It can be passed through from the inner cavity of the top cover board (10) when raw collision；
Thin-walled flow energy absorbing tube (30) is set on the guide post (21), the internal diameter etc. of the thin-walled flow energy absorbing tube (30)
In or be slightly larger than the width of the guide post (21), the thin-walled flow energy absorbing tube (30) and the guide post (21) are far from described in
One end of guide plate pedestal (20) is inserted into the inner cavity of the top cover board (10), and the mutagenesis tooth (11) is used to occur in train
Make the thin-walled flow energy absorbing tube (30) that protuberance plastic deformation radially occur when collision；
The cross section of the guide post (21) is cross, inner wall of multiple mutagenesis teeth (11) along the top cover board (10)
It is circumferentially uniformly arranged, and multiple mutagenesis teeth (11) and the four edges of the cross guide post (21) are staggered, it is more
A mutagenesis tooth (11) is less than the thin-walled flow close to the circle diameter that the one end at top cover board (10) center surrounds
The outer diameter of energy absorbing tube (30).
2. radially protuberance deforms energy absorption device to thin-wall tube according to claim 1, which is characterized in that the mutagenesis tooth (11)
It is bevel structure close to the side of the thin-walled flow energy absorbing tube (30) and the guide post (21).
3. radially protuberance deforms energy absorption device to thin-wall tube according to claim 1, which is characterized in that the mutagenesis tooth (11)
The one end at top cover board (10) center is stretched to by round and smooth processing, is arc structure.
4. radially protuberance deforms energy absorption device to thin-wall tube according to claim 1, which is characterized in that the top cover board
(10) outside is equipped with multiple flanges (12), is provided on the flange (12) for the top cover board (10) to be mounted on train
Installation screw (13) on vehicle body bottom frame.
5. radially protuberance deforms energy absorption device to thin-wall tube according to claim 4, which is characterized in that the mutagenesis tooth (11)
It is an integral molding structure with the flange (12) and the top cover board (10).
6. radially protuberance deforms energy absorption device to thin-wall tube according to claim 1, which is characterized in that the guide plate pedestal
(20) side opposite with the guide post (21) is connect is equipped with anti-climbing tooth (22), the anti-climbing tooth (22) and the guide plate bottom
Seat (20) is an integral molding structure.
7. a kind of application method that deformation energy absorption device is radially swelled such as thin-wall tube of any of claims 1-6,
Be characterized in that, the application method the following steps are included:
S1, top cover board (10) is mounted on train body chassis, thin-walled flow energy absorbing tube (30) is set in guide post
(21) it is inserted into the inner cavity of top cover board (10) on and by thin-walled flow energy absorbing tube (30) and guide post (21), guide plate pedestal
(20) side opposite with guide post (21) is connect is towards the front of rail vehicle；
S2, when rail vehicle collides, impact force of the guide plate pedestal (20) by longitudinal direction, push guide post (21)
Vertically move and drive thin-walled flow energy absorbing tube (30) towards top cover board (10) longitudinal movement, thin-walled flow energy absorbing tube (30) with
Mutagenesis tooth (11) contact；
S3, continue longitudinal movement with thin-walled flow energy absorbing tube (30), mutagenesis tooth (11) constantly inwardly squeezes thin-walled flow energy-absorbing
Pipe (30) makes thin-walled flow energy absorbing tube (30) that radial protuberance deformation occur, finally in the side wall shape of thin-walled flow energy absorbing tube (30)
At a plurality of plastic deformation groove, meanwhile, thin-walled flow energy absorbing tube (30) is contacted with guide post (21) in protuberance deformation process
Position is acted on by biaxial tension occurs stretching plastic deformation, by the protuberance plastic deformation of thin-walled flow energy absorbing tube (30), stretches
It is dynamic that plastic deformation and the friction energy-absorbing function between mutagenesis tooth (11) absorb the impact of guide plate pedestal (20) bring jointly
Can, while guide plate pedestal (20) is given with stable reaction force.
8. a kind of rail vehicle, including train body, which is characterized in that the installation of the vehicle body bottom frame front end of the train body just like
Radially protuberance deforms energy absorption device to thin-wall tube of any of claims 1-6.
9. rail vehicle according to claim 8, which is characterized in that the vehicle body bottom frame front end of the train body is equipped with
Radially protuberance deforms energy absorption device to multiple thin-wall tubes, and multiple thin-wall tubes radially swell deformation energy absorption device along car body
The center line of Undercarriage structure is arranged symmetrically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811220470.3A CN109398403B (en) | 2018-10-19 | 2018-10-19 | Radially protuberance deforms energy absorption device and application method, the rail vehicle with it to thin-wall tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811220470.3A CN109398403B (en) | 2018-10-19 | 2018-10-19 | Radially protuberance deforms energy absorption device and application method, the rail vehicle with it to thin-wall tube |
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| CN109398403A CN109398403A (en) | 2019-03-01 |
| CN109398403B true CN109398403B (en) | 2019-09-10 |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1276523B1 (en) * | 1995-04-07 | 1997-10-31 | Roberto Gentili | MOVING HEAD, WITH REPULSION AND HOOKING ORGANS FOR TWO-MODE VEHICLE FRAME (RAIL/ROAD). |
| DE102014209563A1 (en) * | 2014-05-20 | 2015-11-26 | Zf Friedrichshafen Ag | Impact absorbers, in particular for a rail vehicle |
| CN104787078B (en) * | 2015-04-22 | 2017-08-29 | 深圳市乾行达科技有限公司 | A kind of combined orbit vehicular traffic anticreeper |
| CN205273487U (en) * | 2015-12-30 | 2016-06-01 | 深圳市乾行达科技有限公司 | Cutting formula anticreeper with stand pipe |
| CN206766034U (en) * | 2017-05-03 | 2017-12-19 | 西南交通大学 | A kind of energy-absorbing anti-creep device |
| CN107336721B (en) * | 2017-07-13 | 2018-12-14 | 中南大学 | A kind of energy absorption device based on necking down plastic deformation |
| CN207496693U (en) * | 2017-09-25 | 2018-06-15 | 靖江市盛讯信息科技有限公司 | Crash energy absorption equipment used for rail vehicle |
| CN108340937B (en) * | 2018-03-21 | 2023-06-09 | 深圳市乾行达科技有限公司 | Composite material anti-creeping energy-absorbing device |
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| CN109398403A (en) | 2019-03-01 |
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