CN106672010A - Motor train unit head train passive safety protection device - Google Patents
Motor train unit head train passive safety protection device Download PDFInfo
- Publication number
- CN106672010A CN106672010A CN201611040594.4A CN201611040594A CN106672010A CN 106672010 A CN106672010 A CN 106672010A CN 201611040594 A CN201611040594 A CN 201611040594A CN 106672010 A CN106672010 A CN 106672010A
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- CN
- China
- Prior art keywords
- hole
- absorbing
- guide
- honeycomb core
- device assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G11/00—Buffers
- B61G11/16—Buffers absorbing shocks by permanent deformation of buffer element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G9/00—Draw-gear
- B61G9/04—Draw-gear combined with buffing appliances
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Dampers (AREA)
Abstract
The invention relates to a motor train unit head train passive safety protection device which comprises coupler and draft gear components, anti-creeper components and a main energy absorber component, wherein the main energy absorber component is mounted at the front end of a head train body bumper rail, the coupler and draft gear components are arranged in the front of the main energy absorber component and mounted on guard plates of two sides of the front end of the head train body bumper rail, and the anti-creeper components are arranged on two sides of the guard plates. The protection device is simple in structure, reasonable in layout and high in reliability, energy can be sufficiently and reasonably absorbed when a train collides, life and property safety of passengers is guaranteed, and structural integrality of a rail train body is furthest maintained.
Description
Technical field
The invention belongs to EMU anti-creep energy-absorbing passive security protection technology field, and in particular to a kind of bullet train
Head car passive security preventer.
Background technology
With the fast development of China's urban rail transit construction, while going on a journey more convenient, the harm that accident is caused also is got over
Come bigger, while active control reliability is improved, the passive safety of trolley coach is increasingly becoming Jiao of concern
Point.What impulsive force was maximum when being collided due to track train is a car, and subsequent vehicle reduces step by step, therefore, consider train suction
Can require and actual energy-absorbing mode, generally arrange the more absorption plant of energy-absorbing energy in train head car.
At present, energy energy absorption device is generally arranged in train two ends by rail traffic vehicles, but due to the shape of absorption plant
Formula is varied, arrangement form is varied, on the one hand due to portion-form energy absorption device peak force and average power ratio compared with
Greatly, shock loading fluctuation is larger, causes the integral energy-absorbing of energy absorption device less efficient；On the other hand due to topology layout and design
It is unreasonable, cause to put forward higher requirement car body, or even partial buffer energy absorption device load is excessively concentrated, to its installation portion
The local car body strength requirement of position is very high, is difficult to meet the situation of intensity bearing requirements during car body design.For example：Conventional is swollen
Tubular type energy-absorbing, draw formula energy-absorbing, cutting type energy-absorbing, car end structure energy-absorbing（Such as bumping post energy-absorbing）There is power-absorbing energy
Unreasonable distribution, crash energy absorption be inefficient, the problems such as require unreasonable to car body local strength.Therefore, how to mitigate
Body construction is caused considerable damage when rail traffic vehicles mutually clash into, it is ensured that train collision safety is worth designer's
Deep thinking.
The content of the invention
It is an object of the invention to provide a kind of energy absorption distributes reasonable, compact conformation, miniaturization, light-weighted EMUs
Head car passive security preventer.
For achieving the above object, EMUs head car passive security preventer of the present invention includes coupler draft gear group
Part, anti-creep device assembly, main energy-absorbing device assembly；Wherein, the main energy-absorbing device assembly is arranged on the front end of head car car body Crashworthy plate；Institute
The front that coupler draft gear component is arranged on the main energy-absorbing device assembly is stated, and installed in the both sides of head car car body anticollision front edge of board
On backplate；The anti-creep device assembly is arranged on the both sides of the backplate.
Coupler draft gear component of the present invention includes coupler body and hitch installing plate, and the coupler body is integrally pacified
It is mounted on hitch installing plate, the hitch installing plate both sides are machined with cuts off the wing, the centre of hitch installing plate is machined with
One through hole, the first through hole is corresponding with the rear extending portion part of coupler body, and the both sides of first through hole are machined with installing hole, described
Coupler body is connected by installing hole with hitch installing plate；Described cutting off be machined with the wing connecting hole, and hitch installing plate leads to
Cross connecting hole to fasten on two side guard plates of car car body anticollision front edge of board to the end.
Described anti-creep device assembly is made up of motion section bar, fixed cavity of sectional material, honeycomb core power-absorbing；Wherein, it is described
Motion section bar one end is connected with fixed cavity of sectional material, and can slide anteroposterior in fixed cavity of sectional material；The honeycomb core energy-absorbing unit
Part is filled in the inside cavity of fixed cavity of sectional material, slides backward for retardation motion section bar.
The main energy-absorbing device assembly is made up of slide-and-guide component, honeycomb core and directive slide track；Wherein, the slide-and-guide
Component includes sliding panel, guide cylinder, and the guide cylinder is connected with sliding panel by bolt, and the honeycomb core is nested in guide cylinder knot
On structure, the directive slide track is arranged on the surrounding of sliding panel, and links together with two side guard plates of anticollision front edge of board.
Further to improve energy absorbing efficiency, ride between train when preventing shock accident from occurring and climb phenomenon, the motion
Section bar front end is fixed with anti-climbing tooth, for engaging anti-creep；Left and right two sides of motion section bar are provided with slide-and-guide, for moving back
It is oriented to when allowing；Motion section bar is internally provided with pressing plate, for compressing honeycomb core power-absorbing；The inner side of the fixed cavity of sectional material
Guide chute is provided with side, the slide-and-guide cooperating on the guide chute and motion section bar is that anticreeper retreats pressure
Contracting provides guiding.
To mitigate preventer overall weight, it is to avoid too high to the requirement of car body local strength during installation, the motion section bar,
Fixed cavity of sectional material is fabricated by using aluminium section bar；The honeycomb core power-absorbing is by the regular regular hexagon heap of size
It is folded to form.
Used as the preferred of the present invention, the sliding panel is arranged on master by mainboard, the guide chute being arranged at mainboard corner
Second through hole at plate center and the screwing through hole composition being arranged on around the second through hole；The guide cylinder is by flange and cylindrical part group
Into being machined with screw hole on the flange；The guide chute is used for and directive slide track cooperating；Second through hole is used for
Coordinate with the assembling of guide cylinder cylindrical part；The screwing through hole is used to make to realize that screw is connected between sliding panel and guide cylinder.
It is reserved in the middle of the honeycomb core to hide hole as present invention further optimization, for slide-and-guide component
Guide cylinder is coordinated, and the end surface shape of honeycomb core is hexagon honeycomb cell structure.
Advantages of the present invention and good effect：
（1）Preventer of the present invention is the theory and method design with reference to domestic and international impact energy management, and structure is simple
Single, rationally distributed, reliability is high, and energy can sufficiently and reasonably be absorbed during train collision, the life wealth of effective guarantee occupant
Safety is produced, the integrity of track vehicle body structure is safeguarded to greatest extent；Simultaneously as each power-absorbing is adopted in preventer
With it is independent can safeguard, removable form is installed, so, units can be entered according to different degrees of collision and be safeguarded accordingly more
Change, substantially reduce maintenance cost.
（2）Preventer of the present invention makes train collision process by being used as core power-absorbing using aluminum honeycomb
In impact energy obtain effective, efficient absorption, efficiently solve passive security preventer crash energy absorption inefficient
Or not enough, passive security preventer quality is lower than energy-absorbing, layout it is unreasonable caused by body construction local strength design requirement
Too high the problems such as.
Description of the drawings
Fig. 1 is head car body construction schematic diagram of the present invention；
Fig. 2 is the schematic diagram that preventer of the present invention is arranged on head car car body；
Fig. 3 is coupler draft gear modular construction schematic diagram of the present invention；
Fig. 4 is hitch mounting plates structure schematic diagram of the present invention；
Fig. 5 is anticreeper modular construction schematic diagram of the present invention；
Fig. 6 is anticreeper assemble cross-section of the present invention；
Fig. 7 is anticreeper motion section bar structural representation of the present invention；
Fig. 8 is anticreeper motion section bar sectional view of the present invention；
Fig. 9 is that anticreeper of the present invention fixes section bar structural representation；
Figure 10 is honeycomb core power-absorbing structural representation of the present invention；
Figure 11 is main energy absorber modular construction schematic diagram of the present invention；
Figure 12 is slide-and-guide modular construction schematic diagram of the present invention；
Figure 13 is slip plate structure schematic diagram of the present invention；
Figure 14 is guide cylinder structural representation of the present invention；
Figure 15 is honeycomb core structures schematic diagram of the present invention；
Figure 16 is directive slide track structural representation of the present invention.
Specific embodiment
As shown in Figure 1, 2：Preventer of the present invention is arranged on the Crashworthy plate B11 front ends of head car car body B, described anti-
Protection unit is arranged on head car car body B as the structure that can flexibly dismantle and change, and when train occurs serious collision accident, is prevented
Protection unit is responsible for collision energy-absorbing, it is ensured that head car car body B does not occur serious conquassation deformation in whole process, that is, guarantees that passenger survives
Space.The preventer is made up of coupler draft gear component 11, anti-creep device assembly 12, main energy-absorbing device assembly 13；Wherein, it is described
Main energy-absorbing device assembly 13 is arranged on the front end of the Crashworthy plate B11 of head car car body B；The coupler draft gear component 11 is arranged on described
The front of main energy-absorbing device assembly 13, and on two side guard plate B12 of head car car body B anticollision front edge of board；The anticreeper group
Part 12 is arranged on the both sides of the backplate B12.
As shown in Figure 3, Figure 4：The coupler draft gear component 11 includes coupler body 111 and hitch installing plate 112；It is described
Coupler body 111 adopts universal architecture part, and on hitch installing plate 112, the both sides of hitch installing plate 112 process for integral installation
There is section and cut off the wing 1124 for round-corner transition pattern, the centre of hitch installing plate 112 is machined with first through hole 1121, institute
State first through hole 1121 corresponding with the rear extending portion part of coupler body 111, avoided after coupler body 111 using first through hole 1121
Extending portion part is interfered with hitch installing plate 112, and the both sides of first through hole 1121 are machined with installing hole 1123, the coupler body
111 are connected by installing hole 1123 with hitch installing plate 112；Described cutting off be machined with the wing 1124 connecting hole 1122, car
On two side guard plate B12 of the anticollision front edge of board that hook installing plate 112 fastens car car body B to the end by connecting hole 1122；Collision operating mode
Under, when impact load is larger, coupler body 111 is completed after the energy-absorbing task for setting, and on hitch installing plate 112 wing is cut off
1124 are cut off under external force, and coupler body 111 is overall to be retreated, and subsequently will continue to compress main energy-absorbing device assembly 13.
As shown in Figure 5, Figure 6：Described anti-creep device assembly 12 is by motion section bar（Band anti-creep tooth plate）121st, fixed profile cavity
Body 122, honeycomb core power-absorbing 123 are constituted；Wherein, described one end of motion section bar 121 is connected with fixed cavity of sectional material 122, and
Can slide anteroposterior in fixed cavity of sectional material 122；The honeycomb core power-absorbing 123 is filled in the chamber of fixed cavity of sectional material 122
In vivo portion, slides backward for retardation motion section bar 121, plays a part of buffering energy-absorbing.
As shown in Figure 7 to 10：The front end of motion section bar 121 is fixed with anti-climbing tooth 1211, for engaging anti-creep；Motion
121 left and right two sides of section bar are provided with slide-and-guide 1212, are oriented to during for making a concession；Motion section bar 121 is internally provided with pressure
Plate 1213, for compressing honeycomb core power-absorbing 123；Guide chute is provided with the inner side edge of the fixed cavity of sectional material 122
1221, the cooperating of slide-and-guide 1212 on the guide chute 1221 and motion section bar 121 is that anticreeper retrogressing compression is carried
For being oriented to.When the accident of shock occurs, clash into the anti-climbing tooth 1211 on train each installed in the front end of anti-creep device assembly 12 and occur
Engagement, prevents train from riding and climbs；Meanwhile, under the effect of impact of collision load, motion section bar 121 is drawn back and is allowed, motion section bar
The honeycomb core power-absorbing 123 in the fixed cavity of sectional material 122 of the compression of pressing plate 1213 in 121, honeycomb core power-absorbing 123 occurs
Plastic deformation energy absorption.
Motion section bar 121 of the present invention, fixed cavity of sectional material 122 are fabricated by preferably with aluminium section bar, so can be with
Mitigate preventer overall weight；The honeycomb core power-absorbing 123 is formed by the regular regular hexagon stacking of size,
Matrix material can be aluminium alloy, rustless steel etc., with stable bearer properties.
As shown in Figure 11, Figure 12：The main energy-absorbing device assembly 13 is by slide-and-guide component, honeycomb core 133 and directive slide track
134 compositions；Wherein, the slide-and-guide component includes sliding panel 131, guide cylinder 132, the guide cylinder 132 and sliding panel 131
It is connected by bolt, the honeycomb core 133 is nested in the structure of guide cylinder 132, the directive slide track 134 is arranged on sliding panel
131 surrounding, and link together with two side guard plate B12 of anticollision front edge of board.
Slide-and-guide component of the present invention is connected by being realized using shear screw 135 with slideway and car body.
When clashing into, when bearing strength is more than screw shear strength under impact loading, cutting off screw 135 can be cut off, sliding
Action-oriented component is drawn back along directive slide track 134 and is allowed, and compresses the power-absorbing of honeycomb core 133.
As shown in figure 13：The sliding panel 131 is by mainboard 1311, the guide chute being arranged at 1,311 4 jiaos of mainboard
1312, the second through hole 1313 for being arranged on the center of mainboard 1311 and 1314 groups of screwing through hole being arranged on around the second through hole 1313
Into；Wherein, the guide chute 1312 is used for and the cooperating of directive slide track 134；Second through hole 1313 is used for and guiding
Cylinder 132 cylindrical portions assembling coordinates；The screwing through hole 1314 is used to make to realize screw between sliding panel 131 and guide cylinder 132
It is connected.
As shown in Fig. 1,14：The guide cylinder 132 is mainly made up of flange 1321 and cylindrical part 1322, the flange 1321
On be machined with screw hole 1323, penetrate for screw, realize with sliding panel 131 be connected；The cylindrical part 1322 and sliding panel
The through hole B13 cooperatings on the second through hole 1313 and Crashworthy plate B11 on 131, guiding when realizing that main energy absorber compresses.
As shown in figure 15：It is reserved in the middle of the honeycomb core 133 to hide hole 1331, for the guide cylinder with slide-and-guide component
132 are coordinated, its end surface shape be hexagon honeycomb cell structure, honeycomb core as main energy-absorbing device assembly core power-absorbing it
One, it is installed on slide-and-guide component rear.
As shown in figure 16：The directive slide track 134 is smooth stripe board structure, and fixed company is machined with directive slide track 134
Hole is connect, makes it be connected with the side guard plate B12 of head car car body two by screw.The cunning that coupler draft gear component 11 passes through end during work
Impulsive force is passed to main energy-absorbing device assembly 13 by dynamic component, and main energy-absorbing device assembly 13 is moved back by along the directive slide track 134 of both sides
It is dynamic, realize the overall conquassation to the main energy absorber of honeycomb core 133.
Preventer of the present invention when a vehicle is in a collision, the Liquid and gas damper of head Herba Plantaginis end hitch and conquassation first
Pipe starts priority action, and coupler body 111 starts energy-absorbing, after hitch conquassation pipe action is finished, the energy-absorbing of coupler body 111 knot
Beam, the wing 1124 of cutting off on hitch installing plate 112 cuts off failure.Subsequently to colliding the anti-climbing tooth before the anticreeper of train front end
1211 engagements, motion section bar 121 is moved backward, and power-absorbing starts action in anticreeper, continues energy absorption；Following hitch
Hitch installing plate 112 behind main body 111 starts to compress main energy-absorbing device assembly 13, after power-absorbing stroke is covered, energy-absorbing
Terminate.Most shock kinetic energy is dissipated by multistage energy-absorbing, so as to protect the life security and rail of occupant to greatest extent
Road vehicle body structure it is complete.
Claims (8)
1. a kind of EMUs head car passive security preventer, it is characterised in that：The preventer include coupler draft gear component,
Anti-creep device assembly, main energy-absorbing device assembly；Wherein, the main energy-absorbing device assembly is arranged on the front end of head car car body Crashworthy plate；It is described
Coupler draft gear component is arranged on the front of the main energy-absorbing device assembly, and protects installed in the both sides of head car car body anticollision front edge of board
On plate；The anti-creep device assembly is arranged on the both sides of the backplate.
2. a kind of EMUs head car passive security preventer according to claim 1, it is characterised in that：The hitch delays
Device assembly is rushed including coupler body and hitch installing plate, the both sides of the hitch installing plate are machined with cuts off the wing, hitch installing plate
Centre be machined with first through hole, the first through hole is corresponding with the rear extending portion part of coupler body, the two of first through hole
Side is machined with installing hole, and the coupler body is connected by installing hole with hitch installing plate；Described being cut off be machined with the wing
Connecting hole, hitch installing plate is fastened on two side guard plates of car car body anticollision front edge of board to the end by connecting hole.
3. a kind of EMUs head car passive security preventer according to claim 1, it is characterised in that：Described anti-creep
Device assembly is made up of motion section bar, fixed cavity of sectional material, honeycomb core power-absorbing；Wherein, described motion section bar one end and fixation
Cavity of sectional material connects, and can slide anteroposterior in fixed cavity of sectional material；The honeycomb core power-absorbing is filled in fixed profile cavity
The inside cavity of body, slides backward for retardation motion section bar.
4. a kind of EMUs head car passive security preventer according to claim 1, it is characterised in that：The main energy-absorbing
Device assembly is made up of slide-and-guide component, honeycomb core and directive slide track；Wherein, the slide-and-guide component includes sliding panel, leads
To cylinder, the guide cylinder is connected with sliding panel by bolt, and the honeycomb core is nested on guiding barrel structure, the directive slide track
Installed in the surrounding of sliding panel, and link together with two side guard plates of anticollision front edge of board.
5. a kind of EMUs head car passive security preventer according to claim 3, it is characterised in that：The motor type
Material front end is fixed with anti-climbing tooth, for engaging anti-creep；Left and right two sides of motion section bar are provided with slide-and-guide, for making a concession
When be oriented to；Motion section bar is internally provided with pressing plate, for compressing honeycomb core power-absorbing；The inner side edge of the fixed cavity of sectional material
On be provided with guide chute, the slide-and-guide cooperating on the guide chute and motion section bar, is that anticreeper retreats compression
There is provided and be oriented to.
6. a kind of EMUs head car passive security preventer according to claim 3, it is characterised in that：The motor type
Material, fixed cavity of sectional material are fabricated by using aluminium section bar；The honeycomb core power-absorbing is by regular positive six side of size
Shape stacking is formed.
7. a kind of EMUs head car passive security preventer according to claim 4, it is characterised in that：The sliding panel
By mainboard, the guide chute being arranged at mainboard corner, it is arranged on the second through hole of main plate center and is arranged on the second through hole week
The screwing through hole composition for enclosing；The guide cylinder is made up of flange and cylindrical part, and on the flange screw hole is machined with；The guiding
Chute is used for and directive slide track cooperating；Second through hole is used to coordinate with the assembling of guide cylinder cylindrical part；The screw leads to
Hole is used to make to realize that screw is connected between sliding panel and guide cylinder.
8. a kind of EMUs head car passive security preventer according to claim 4, it is characterised in that：The honeycomb core
Centre is reserved to hide hole, and for being coordinated with the guide cylinder of slide-and-guide component, the end surface shape of honeycomb core is hexagonal hole
Lattice structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611040594.4A CN106672010A (en) | 2016-11-22 | 2016-11-22 | Motor train unit head train passive safety protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611040594.4A CN106672010A (en) | 2016-11-22 | 2016-11-22 | Motor train unit head train passive safety protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106672010A true CN106672010A (en) | 2017-05-17 |
Family
ID=58865996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611040594.4A Pending CN106672010A (en) | 2016-11-22 | 2016-11-22 | Motor train unit head train passive safety protection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN106672010A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107200034A (en) * | 2017-05-23 | 2017-09-26 | 中车唐山机车车辆有限公司 | Energy-absorbing component and motor-car |
| CN107914728A (en) * | 2017-11-14 | 2018-04-17 | 中车长春轨道客车股份有限公司 | The front end energy absorption device of railcar |
| CN108466631A (en) * | 2018-03-12 | 2018-08-31 | 中车株洲电力机车有限公司 | A kind of buffering energy-absorbing coupler pocket and track train |
| CN109017859A (en) * | 2018-06-27 | 2018-12-18 | 中车株洲电力机车有限公司 | A kind of emu vehicle and its main energy absorber device |
| CN109703591A (en) * | 2019-02-26 | 2019-05-03 | 中车长春轨道客车股份有限公司 | Vehicle and its car body collision energy absorption device |
| WO2019223257A1 (en) * | 2018-05-24 | 2019-11-28 | 中车株洲电力机车有限公司 | Rail vehicle and collision energy absorption system therefor |
| WO2020173436A1 (en) * | 2019-02-26 | 2020-09-03 | 中车长春轨道客车股份有限公司 | Vehicle and vehicle body collision energy absorption device thereof |
| CN112298257A (en) * | 2020-10-27 | 2021-02-02 | 中车青岛四方机车车辆股份有限公司 | Head front end collision energy-absorbing structure and rail vehicle |
| CN112389488A (en) * | 2020-11-02 | 2021-02-23 | 中车唐山机车车辆有限公司 | Rail vehicle and cab vehicle thereof |
| WO2021114346A1 (en) * | 2019-12-13 | 2021-06-17 | 中车唐山机车车辆有限公司 | Rail vehicle, and vehicle body and end underframe thereof |
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| EP0802100A1 (en) * | 1996-04-19 | 1997-10-22 | De Dietrich Ferroviaire | Railway vehicle with a driverscompartment having an energy absorbing structure with progressive deformation |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107200034A (en) * | 2017-05-23 | 2017-09-26 | 中车唐山机车车辆有限公司 | Energy-absorbing component and motor-car |
| CN107914728A (en) * | 2017-11-14 | 2018-04-17 | 中车长春轨道客车股份有限公司 | The front end energy absorption device of railcar |
| CN108466631A (en) * | 2018-03-12 | 2018-08-31 | 中车株洲电力机车有限公司 | A kind of buffering energy-absorbing coupler pocket and track train |
| WO2019223257A1 (en) * | 2018-05-24 | 2019-11-28 | 中车株洲电力机车有限公司 | Rail vehicle and collision energy absorption system therefor |
| CN109017859A (en) * | 2018-06-27 | 2018-12-18 | 中车株洲电力机车有限公司 | A kind of emu vehicle and its main energy absorber device |
| WO2020173436A1 (en) * | 2019-02-26 | 2020-09-03 | 中车长春轨道客车股份有限公司 | Vehicle and vehicle body collision energy absorption device thereof |
| CN109703591A (en) * | 2019-02-26 | 2019-05-03 | 中车长春轨道客车股份有限公司 | Vehicle and its car body collision energy absorption device |
| WO2021114346A1 (en) * | 2019-12-13 | 2021-06-17 | 中车唐山机车车辆有限公司 | Rail vehicle, and vehicle body and end underframe thereof |
| CN112977518A (en) * | 2019-12-13 | 2021-06-18 | 中车唐山机车车辆有限公司 | Rail vehicle and vehicle body and end underframe thereof |
| CN112977518B (en) * | 2019-12-13 | 2023-02-28 | 中车唐山机车车辆有限公司 | Rail vehicle and vehicle body and end underframe thereof |
| CN112298257A (en) * | 2020-10-27 | 2021-02-02 | 中车青岛四方机车车辆股份有限公司 | Head front end collision energy-absorbing structure and rail vehicle |
| CN112389488A (en) * | 2020-11-02 | 2021-02-23 | 中车唐山机车车辆有限公司 | Rail vehicle and cab vehicle thereof |
| CN112389488B (en) * | 2020-11-02 | 2022-05-17 | 中车唐山机车车辆有限公司 | Rail vehicle and cab vehicle thereof |
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