CN108860180B - Cab structure of low-floor vehicle and low-floor vehicle - Google Patents
Cab structure of low-floor vehicle and low-floor vehicle Download PDFInfo
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- CN108860180B CN108860180B CN201810716633.0A CN201810716633A CN108860180B CN 108860180 B CN108860180 B CN 108860180B CN 201810716633 A CN201810716633 A CN 201810716633A CN 108860180 B CN108860180 B CN 108860180B
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- cab
- assembly welding
- creeper
- welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
- B61C17/04—Arrangement or disposition of driving cabins, footplates or engine rooms; Ventilation thereof
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G1/00—Couplings comprising interengaging parts of different shape or form and having links, bars, pins, shackles, or hooks as coupling means
- B61G1/36—Couplings comprising interengaging parts of different shape or form and having links, bars, pins, shackles, or hooks as coupling means with shackles and hooks, e.g. specially adapted for mine cars
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses a cab structure of a low-floor vehicle, which comprises cab base assembly welding, coupler mounting seat assembly welding and anti-creeper mounting seat assembly welding, wherein the coupler mounting seat assembly welding and the anti-creeper mounting seat assembly welding are arranged at the front end of the cab base assembly welding and are staggered in the height direction. This cab structure utilizes the space of cab platform below to optimize the overall arrangement of coupling mounting structure and anticreeper mounting structure, adopts the mode of setting up that staggers coupling mount pad assembly welding and anticreeper mount pad assembly welding in the direction of height, satisfies the installation of anticreeper and coupling, realizes the purpose at the automobile body front end is installed simultaneously to coupling and anticreeper, has solved the problem that low floor vehicle cab structure installs coupling and anticreeper space not enough simultaneously among the prior art. The invention also discloses a low-floor vehicle comprising the cab structure.
Description
Technical Field
The invention relates to the technical field of vehicle body structures of rail transit vehicles, in particular to a cab structure of a low-floor vehicle. In addition, the invention also relates to a low-floor vehicle comprising the cab structure.
Background
The low-floor tramcar can share the right of way with other urban transportation vehicles, improves the public transportation trip efficiency to the maximum extent, and has small influence on urban pavements, so the low-floor tramcar is more and more widely applied.
In order to improve the collision safety performance of a low-floor tramcar, a climbing-prevention energy-absorbing device is generally mounted at an end of a cab structure of the vehicle. However, since the space at the bottom of the cab of the low-floor tramcar is small, and if the anti-creeper, the energy absorbing device and the coupler structure are installed at the front end of the cab structure at the same time, the installation space required is large, so that the cab structure of the existing low-floor tramcar cannot meet the requirement that the anti-creeper energy absorbing device and the coupler device are installed at the front end of the cab structure at the same time.
Therefore, how to provide a cab structure capable of ensuring that the anti-climbing energy absorbing device and the coupler device are simultaneously installed at the front end of the cab structure is a problem to be solved urgently by technical personnel in the field at present.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a cab structure for a low-floor vehicle, which can solve the problem of insufficient space for installing a hook and an anticreeper at the same time in the cab structure for a low-floor vehicle.
Another object of the present invention is to provide a low-floor vehicle including the cab structure described above, which is capable of satisfying that a coupler and a climbing guard are simultaneously installed at the front end of the cab structure, improving collision safety performance thereof.
In order to achieve the above purpose, the invention provides the following technical scheme:
the utility model provides a cab structure of low-floor vehicle, includes cab base assembly welding, coupling mount pad assembly welding and anti-creeper mount pad assembly welding, coupling mount pad assembly welding with anti-creeper mount pad assembly welding all sets up the front end of cab base assembly welding, and stagger the setting in the direction of height.
Preferably, the cab base is assembled and welded to form a box-type frame structure, the two sides of the cab base are respectively provided with a side supporting assembly and welding part of a laminated structure, and the side supporting assembly and welding part is connected with a cab front supporting beam of a U-shaped structure in an assembling and welding manner.
Preferably, the assembly welding of the anti-creeper installation seat is respectively connected with the assembly welding of the side support and the assembly welding of the front support beam of the cab, and the assembly welding of the coupler installation seat is connected with the assembly welding of the front support beam of the cab through a front bending plate of the cab.
Preferably, the assembly welding of the coupler installation seat is connected with the middle end face of the front bending plate of the cab, the assembly welding of the anti-creeper installation seat is respectively arranged on two sides of the front bending plate of the cab, and the assembly welding of the coupler installation seat and the assembly welding of the anti-creeper installation seat are staggered in the height direction.
Preferably, two sides of each anti-creeper mounting seat assembly welding are provided with anti-creeper mounting seat supporting plates.
Preferably, the rear end of cab base assembly welding is equipped with and is used for can dismantling the cab end plate of being connected with the passenger train carriage, the cab end plate is the end plate of processing after the assembly welding earlier.
Preferably, the cab end plate is a U-shaped cab end plate, two sides of the cab end plate are respectively connected with the two side support assembly welding joints, and the bottom edge of the cab end plate is connected with the cab base assembly welding joints.
Preferably, the assembly welding of the front supporting beam of the cab comprises a U-shaped beam and a U-shaped flat plate which is connected with the U-shaped beam and extends inwards, the U-shaped flat plate is connected with the assembly welding of the anti-creeper mounting seat, two side beams of the U-shaped beam are respectively connected with two side supporting assembly welding joints, and the end parts of the side beams are connected with the side end faces of the end plates of the cab.
Preferably, a corner support of a U-shaped beam structure is arranged at the joint of the cab end plate and the side beam.
A low-floor vehicle comprises a cab structure, wherein the cab structure is any one of the cab structures.
According to the cab structure of the low-floor vehicle, the layout of the car coupler installation structure and the anti-creeper installation structure is optimized by utilizing the space below the cab platform, the installation of the anti-creeper and the car coupler is met by adopting a mode that the car coupler installation seats and the anti-creeper installation seats are welded in a staggered mode in the height direction, the purpose that the car coupler and the anti-creeper are installed at the front end of the vehicle body at the same time is achieved, and the problem that the space for installing the car coupler and the anti-creeper at the same time in the cab structure of the low-floor vehicle in the prior art is insufficient is solved.
The low-floor vehicle provided by the invention comprises the cab structure, and the low-floor vehicle can meet the condition that a car coupler and an anti-creeper are simultaneously arranged at the front end of the cab structure, so that the collision safety performance of the low-floor vehicle is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a specific embodiment of a cab structure of a low-floor vehicle provided by the invention;
FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;
FIG. 3 is a side view of FIG. 2;
FIG. 4 is a schematic structural view of the assembly welding of the support beams at the front part of the cab in FIG. 1;
FIG. 5 is a partial schematic view of the cab structure shown in FIG. 1 coupled to a passenger vehicle cabin;
fig. 6 is a schematic view of fig. 5 from another viewing angle.
The reference numerals in fig. 1 to 6 are as follows:
the assembly welding method comprises the steps of 1, 2, 3, 31, 4, 5, 51, 7, 8 and 9, wherein the steps of the assembly welding method comprises the assembly welding of a cab base, the assembly welding of a coupler mounting seat, the assembly welding of an anti-creeper mounting seat, the support plate of the anti-creeper mounting seat, the assembly welding of a side support, the assembly welding of a cab front support beam, the U-shaped flat plate, the cab front bending plate, the cab end plate, the corner brace and the passenger car carriage are respectively adopted for the steps 1, 2 and 3.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The core of the invention is to provide a cab structure of a low-floor vehicle, which can solve the problem that the cab structure of the low-floor vehicle is insufficient in space for installing a car hook and an anti-creeper at the same time. The other core of the invention is to provide a low-floor vehicle comprising the cab structure, wherein the low-floor vehicle can meet the condition that a coupler and an anti-creeper are simultaneously arranged at the front end of the cab structure, and the collision safety performance of the low-floor vehicle is improved.
Referring to fig. 1 to 6, fig. 1 is a schematic structural view of a cab structure of a low-floor vehicle according to an embodiment of the present invention; FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective; FIG. 3 is a side view of FIG. 2; FIG. 4 is a schematic structural view of the assembly welding of the support beams at the front part of the cab in FIG. 1; FIG. 5 is a partial schematic view of the cab structure shown in FIG. 1 coupled to a passenger vehicle cabin; fig. 6 is a schematic view of fig. 5 from another viewing angle.
The invention provides a cab structure of a low-floor vehicle, which comprises a cab base assembly welding 1, wherein the front end of the cab base assembly welding 1 is provided with a coupler mounting seat assembly welding 2 and an anti-creeper mounting seat assembly welding 3, the coupler mounting seat assembly welding 2 and the anti-creeper mounting seat assembly welding 3 are respectively mounting structures of a coupler and an anti-creeper and are used for mounting and fixing the coupler and the anti-creeper, and the coupler mounting seat assembly welding 2 and the anti-creeper mounting seat assembly welding 3 are arranged in a staggered mode in the height direction.
That is, the layout of the car coupler installation structure and the anti-creeper installation structure is optimized by using the space below the cab, the installation of the anti-creeper and the car coupler is met by adopting the mode that the car coupler installation seat assembly welding 2 and the anti-creeper installation seat assembly welding 3 are arranged in a staggered mode in the height direction, the purpose that the car coupler and the anti-creeper are simultaneously installed at the front end of the car body is achieved, and the problem that the space for simultaneously installing the car coupler and the anti-creeper on the cab structure of the low-floor vehicle is insufficient is solved.
It can be understood that the conventional anti-climbing energy absorption device for the low-floor tramcar can only meet the energy absorption requirement during the collision of the low-speed vehicle, and when the collision speed exceeds the speed grade, the vehicle body structure is required to participate in the energy absorption so as to improve the collision safety performance of the vehicle. Therefore, in order to improve the strength of the cab structure and resist the vehicle collision energy, on the basis of the above embodiment, the two sides of the cab base assembly welding 1 are respectively provided with the side support assembly welding 4, the side support assembly welding 4 is connected with the cab front support beam assembly welding 5, the cab base assembly welding 1 is of a box-type frame structure, the side support assembly welding 4 is of a laminate structure, and the cab front support beam assembly welding 5 is of a U-shaped structure, so that the three form a frame structure.
That is to say, in this embodiment, the cab base assembly welding 1 of the box-type frame structure, the side support assembly welding 4 of the deck structure, and the cab front support beam assembly welding 5 of the U-shaped structure are connected into a whole to form a frame structure, which becomes a load-bearing force-transfer structure of the whole cab structure, so that the strength and rigidity of the cab structure are improved, and when the collision speed of the low-floor vehicle exceeds a certain level, the cab structure has sufficient strength to participate in the absorption of the residual energy, and therefore, the collision safety performance of the vehicle is improved.
It should be noted that the interior of the cab structure of the frame structure is divided into three layers in the height direction, which are respectively a lower plane flush with the floor surface of the passenger compartment, a middle plane for providing a seat mounting interface of the cab, and an upper plane for mounting the console and the hood of the cab, wherein the lower plane is flush with the floor surface of the passenger compartment, and the heights of the middle plane and the upper plane can be adjusted according to the interior decoration of the cab.
Further, the specific structure of the frame structure needs to ensure that the structural strength of the rear area of the cab structure is greater than the structural strength of the front area of the cab structure, which is bounded by the coupler mounting surface.
In consideration of the problem of transmission of bearing force during collision, on the basis of the above embodiment, the anti-creeper mounting seat assembly welding 3 is respectively connected with the side support assembly welding 4 and the cab front support beam assembly welding 5, the coupler mounting seat assembly welding 2 is connected with the cab front support beam assembly welding 5 through the cab front bending plate 6, and the cab front bending plate 6 is of an intermediate connection structure so as to ensure the integrity of the cab structure.
Namely, the assembly welding 3 of the mounting seat of the anti-creeper is connected with the assembly welding 1 of the base of the cab, the assembly welding 4 of the side support and the assembly welding 5 of the front support beam of the cab, so that the bearing capacity of the anti-creeper is effectively transferred, the stress of the frame structure is more balanced, and the force transfer is more timely; and the assembly welding 2 of the coupler mounting seat transmits the collision force to the assembly welding 5 of the front support beam of the cab and the assembly welding 1 of the base of the cab through the front bending plate 6 of the cab. During collision, collision force is transmitted to the cab base assembling and welding part 1, the side support assembling and welding part 4 and the cab front support beam assembling and welding part 5 through the anti-creeper mounting seat assembling and welding part 3 and the coupler mounting seat assembling and welding part 2, so that the whole frame structure is stressed, and the frame structure formed by the cab base assembling and welding part 1, the side support assembling and welding part 4 and the cab front support beam assembling and welding part 5 has a strong resistance effect on the collision force.
Considering the concrete arrangement positions of the coupler mounting seat assembly welding 2 and the anti-creeper mounting seat assembly welding 3, on the basis of the above embodiment, the coupler mounting seat assembly welding 2 is connected with the middle end face of the front bending plate 6 of the cab, the two anti-creeper mounting seat assembly welding 3 are respectively arranged on two sides of the front bending plate 6 of the cab, and the height of the front bending plate 6 of the cab can enable the coupler mounting seat assembly welding 2 and the anti-creeper mounting seat assembly welding 3 to be arranged in a staggered manner in the height direction.
That is to say, in the embodiment, the assembly welding 2 of the coupler mounting seat and the assembly welding 3 of the anti-creeper mounting seat are staggered in the height direction through the front bending plate 6 of the cab.
In view of the connection strength problem of the group welding 3 of the anticreeper mount base, on the basis of the above-described embodiment, both sides of each group welding 3 of the anticreeper mount base are provided with the anticreeper mount base support plates 31. The anticreeper mount pad 31 can provide sufficient supporting role to the anticreeper mount pad assembly welding 3 to ensure the fastness that the anticreeper mount pad assembly welding 3 is fixed.
Because the cab structure participates in residual energy absorption during collision, in order to improve the maintainability of the cab structure after collision, on the basis of any one of the above embodiments, the rear end of the cab base assembly welding 1 is provided with a cab end plate 7 for detachably connecting with the passenger car compartment 9, and the cab end plate 7 is an end plate which is firstly assembled and welded and then processed.
Preferably, the cab end plate 7 is provided with a bolt hole, the cab structure and the passenger compartment are fixedly connected through the bolt hole by the cab end plate 7, the bolt connection mode is simple to operate, and the cab structure can be quickly disassembled and replaced.
It should be noted that, in order to ensure the joint strength between the cab end plate 7 and the passenger car compartment 9, the flatness of the joint surface between the cab end plate 7 and the passenger car compartment 9 is improved by the end plate which is firstly assembled and welded and then processed in the embodiment, therefore, during assembly, the joint surface can be ensured to be seamlessly attached to the passenger car compartment 9, so as to increase the friction force of the contact surface between the cab end plate 7 and the passenger car compartment 9, after the cab end plate 7 is contacted with the passenger car compartment 9, the fastener is adopted to fix the cab end plate and the passenger car compartment 9, and the strong connection between the cab end plate and the passenger car compartment.
In consideration of the effectiveness of force transmission between the cab structure and the carriage body, on the basis of the above embodiment, the cab end plate 7 is a U-shaped cab end plate, two side edges of the cab end plate 7 are respectively attached to two side support assembly welds 4, and the bottom edge of the cab end plate 7 is attached to the cab base assembly weld 1.
That is to say, in this embodiment, the contact area between the cab end plate 7 and the frame structure and the carriage structure is increased by the U-shaped cab end plate, so as to increase the force transmission surface of the independent cab structure to the maximum extent, and the stress of the cab structure is better transmitted to the carriage structure.
In order to ensure the flatness of the connecting surface of the U-shaped cab end plate, the U-shaped cab end plate is preferably a cab end plate 7 which is welded in sections.
In consideration of the specific structure of the front support beam assembly welding, on the basis of the above embodiment, the cab front support beam assembly welding 5 includes a U-shaped beam 51 and a U-shaped flat plate 52 connected to the U-shaped beam 51 and extending inward, the U-shaped flat plate 52 is connected to the anti-creeper mount block assembly welding 3, two side beams of the U-shaped beam 51 are respectively attached to two side support assembly welds 4, and the end portions of the side beams are connected to the side end surfaces of the cab end plates 7.
That is, the cab front support beam assembly welding 5 is in abutting connection with the side support assembly welding 4 located on both sides of the cab base assembly welding 1 through the two substantially parallel side members, and the end surfaces of the two side members are in abutting connection with the side surfaces of the cab end plates 7, respectively, which improves the connection strength between the cab front support beam assembly welding 5 and the side support assembly welding 4. The U-shaped flat plate 52 increases the contact surface of the assembly welding 3 of the mounting seat of the anti-creeper and the assembly welding 5 of the front supporting beam of the cab, and ensures the connection strength of the assembly welding 3 of the mounting seat of the anti-creeper.
Preferably, the U-shaped beam 51 and the U-shaped flat plate 52 are both provided with buffer holes, that is, the structural strength of the cab front support beam assembly welding 5 is controlled through the buffer holes, and when the vehicle is collided at a higher speed, the buffer holes participate in the absorption of the residual collision energy, so that the deformation of the vehicle body structure is controllable.
In order to reduce the large stress concentration generated at the joint of the cab end plate 7 and the side beam of the U-shaped beam 51, on the basis of the above embodiment, the corner brace 8 of the U-shaped beam structure is provided at the joint of the cab end plate 7 and the side beam. The corner support 8 can relieve the stress concentration phenomenon at the joint, and the strength and the rigidity of the joint are improved.
In addition to the cab structure, the invention further provides a low-floor vehicle including the cab structure disclosed in the above embodiment, and the structure of other parts of the low-floor vehicle is referred to the prior art and is not described herein again.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The cab structure of the low-floor vehicle and the low-floor vehicle provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (8)
1. The cab structure of the low-floor vehicle is characterized by comprising a cab base assembly welding part (1), a car coupler installation seat assembly welding part (2) and an anti-creeper installation seat assembly welding part (3), wherein the car coupler installation seat assembly welding part (2) and the anti-creeper installation seat assembly welding part (3) are arranged at the front end of the cab base assembly welding part (1) and are arranged in a staggered mode in the height direction;
the cab base assembling and welding device is characterized in that the cab base assembling and welding device (1) is of a box-type frame structure, two sides of the cab base assembling and welding device (1) are respectively provided with a side supporting assembling and welding device (4) of a laminated structure, and the side supporting assembling and welding device (4) is connected with a cab front supporting beam assembling and welding device (5) of a U-shaped structure;
the assembly welding of the anti-creeper installation seat (3) is respectively connected with the assembly welding of the side support (4) and the assembly welding of the front support beam of the cab (5), and the assembly welding of the car coupler installation seat (2) is connected with the assembly welding of the front support beam of the cab (5) through a front bending plate (6) of the cab.
2. The cab structure according to claim 1, wherein the assembly welding (2) of the coupler mounting seat is connected with the middle end face of the bending plate (6) in the front of the cab, the assembly welding (3) of the two anti-creeper mounting seats are respectively arranged on two sides of the bending plate (6) in the front of the cab, and the assembly welding (2) of the coupler mounting seat and the assembly welding (3) of the anti-creeper mounting seats can be staggered in the height direction due to the height of the bending plate (6) in the front of the cab.
3. Cab structure according to claim 2, wherein each of the anti-creeper mount assembly welds (3) is provided with an anti-creeper mount support plate (31) on both sides.
4. Cab structure according to any one of claims 1-3, wherein the rear end of the cab base assembly welding (1) is provided with a cab end plate (7) for detachable connection with a passenger car compartment (9), and the cab end plate (7) is an end plate which is firstly assembled, welded and then processed.
5. The cab structure according to claim 4, wherein the cab end plate (7) is a U-shaped cab end plate, two side edges of the cab end plate (7) are respectively attached to the two side support assembly welds (4), and the bottom edge of the cab end plate (7) is attached to the cab base assembly weld (1).
6. The cab structure according to claim 5, wherein the cab front support beam assembly welding (5) comprises a U-shaped beam (51) and a U-shaped flat plate (52) which is connected with the U-shaped beam (51) and extends inwards, the U-shaped flat plate (52) is connected with the anti-creeper mounting seat assembly welding (3), two side beams of the U-shaped beam (51) are respectively connected with the two side support assembly welding (4) in an attaching mode, and the end parts of the side beams are connected with the side end surfaces of the cab end plates (7).
7. Cab structure according to claim 6, characterized in that the joints of the cab end plates (7) and the side beams are provided with U-beam structure corner supports (8).
8. A low-floor vehicle comprising a cab structure, characterized in that the cab structure is as claimed in any one of claims 1-7.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810716633.0A CN108860180B (en) | 2018-07-03 | 2018-07-03 | Cab structure of low-floor vehicle and low-floor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810716633.0A CN108860180B (en) | 2018-07-03 | 2018-07-03 | Cab structure of low-floor vehicle and low-floor vehicle |
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| Publication Number | Publication Date |
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| CN108860180A CN108860180A (en) | 2018-11-23 |
| CN108860180B true CN108860180B (en) | 2020-01-17 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104925080A (en) * | 2015-06-24 | 2015-09-23 | 南车青岛四方机车车辆股份有限公司 | Stop beam of monorail motor car and anti-creeping energy-absorbing device thereof |
| CN105151075A (en) * | 2015-09-30 | 2015-12-16 | 南车青岛四方机车车辆股份有限公司 | Energy absorption device and rail vehicle with energy absorption device |
| CN207403746U (en) * | 2017-09-30 | 2018-05-25 | 中辆新能源轨道交通装备江苏有限公司 | Low-floor tramcar drivers' cab chassis |
-
2018
- 2018-07-03 CN CN201810716633.0A patent/CN108860180B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104925080A (en) * | 2015-06-24 | 2015-09-23 | 南车青岛四方机车车辆股份有限公司 | Stop beam of monorail motor car and anti-creeping energy-absorbing device thereof |
| CN105151075A (en) * | 2015-09-30 | 2015-12-16 | 南车青岛四方机车车辆股份有限公司 | Energy absorption device and rail vehicle with energy absorption device |
| CN207403746U (en) * | 2017-09-30 | 2018-05-25 | 中辆新能源轨道交通装备江苏有限公司 | Low-floor tramcar drivers' cab chassis |
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