CN113619632B - Light-weight compact type light rail vehicle anti-climbing energy-absorbing device - Google Patents
Light-weight compact type light rail vehicle anti-climbing energy-absorbing device Download PDFInfo
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- CN113619632B CN113619632B CN202110935720.7A CN202110935720A CN113619632B CN 113619632 B CN113619632 B CN 113619632B CN 202110935720 A CN202110935720 A CN 202110935720A CN 113619632 B CN113619632 B CN 113619632B
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- Prior art keywords
- plate
- collision
- beam structure
- guide
- collision beam
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 21
- 238000010008 shearing Methods 0.000 claims abstract description 11
- 238000010521 absorption reaction Methods 0.000 claims abstract description 9
- 239000006096 absorbing agent Substances 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention provides a light-weight compact type climbing-prevention energy-absorbing device for a light rail vehicle, which comprises an aluminum honeycomb energy-absorbing module, an anti-collision beam structure and a guide frame, wherein the anti-collision beam structure is formed by fixedly connecting plates into a space trapezoid structure, holes for installing the guide frame are formed in the anti-collision beam structure, and the front end of the anti-collision beam structure is fixedly connected with a climbing-prevention toothed plate; the guide frame comprises a guide beam and a connecting plate, wherein the guide beam is longitudinally arranged at the middle position of the rear end of the anti-collision beam structure, the guide beam is n-shaped, the connecting plate is C-shaped and sleeved on two sides of the guide beam, one end of the connecting plate is fixedly connected to the anti-collision beam structure, the other end of the connecting plate is connected to the guide beam through a shearing screw, and the connecting plate slides back and forth relative to the guide beam after the shearing screw is sheared; the honeycomb energy-absorbing modules are connected to two sides of the rear end of the anti-collision beam structure and are symmetrically arranged. The anti-collision beam can participate in energy absorption, collision safety is better guaranteed, and in addition, the guide structure and the energy absorption device are designed to be connected in parallel, so that the whole structure is compact.
Description
Technical Field
The invention belongs to the technical field of rail vehicle manufacturing, and particularly relates to a lightweight compact type climbing-prevention energy-absorbing device for a light rail vehicle.
Background
At present, light rail vehicles at home and abroad are widely applied, and when collision accidents occur, if no corresponding precaution device exists, the living space of drivers and passengers is reduced, and the risk of injury is increased, so that various types of anti-creeping energy absorbing devices are installed on the current rail vehicles.
Most of the anti-creeping energy-absorbing devices of the light rail vehicles in the existing market are configured as anti-collision Liang Jia energy-absorbing elements, generally the energy-absorbing elements absorb energy during collision, and the anti-collision beams do not absorb energy. The anti-creeping device is large in weight, unfavorable for weight reduction of the whole vehicle, complex in structure, large in occupied space and about 1000mm, wherein the length of the anti-creeping teeth reaches about 500mm, and the design of other systems at the front end of the vehicle is not facilitated.
Disclosure of Invention
The invention aims to solve the problems that the climbing-prevention energy-absorbing device of the light rail vehicle is heavy, occupies a large space and the anti-collision beam structure does not absorb energy, thereby providing the climbing-prevention energy-absorbing device of the light rail vehicle, which is light in weight and small in occupied space, and can maximize energy absorption configuration in a limited space and ensure collision safety.
In order to achieve the aim, the invention provides a light-weight compact light rail vehicle anti-climbing energy absorbing device, which comprises an aluminum honeycomb energy absorbing module, an anti-collision beam structure and a guide frame, wherein the anti-collision beam structure comprises a front plate, a rear plate, an upper plate, a lower plate and inclined plates at two sides, the front plate is shorter than the rear plate, all the plates are fixedly connected into a space trapezoid structure, holes for installing the guide frame are formed in the rear plate, the upper plate and the lower plate, and the front end of the anti-collision beam structure is fixedly connected with an anti-climbing toothed plate; the guide frame comprises a guide beam and a connecting plate, wherein the guide beam is longitudinally arranged at the middle position of the rear end of the anti-collision beam structure, the guide beam is n-shaped, the connecting plate is C-shaped and sleeved on two sides of the guide beam, one end of the connecting plate is fixedly connected to the anti-collision beam structure, the other end of the connecting plate is connected to the guide beam through a shearing screw, and the connecting plate slides back and forth relative to the guide beam after the shearing screw is sheared; the honeycomb energy-absorbing modules are connected to two sides of the rear end of the anti-collision beam structure and are symmetrically arranged.
Further, the guide frame penetrates through the process hole of the rear plate, and part of the guide frame enters the anti-collision beam structure and is fixedly connected with the upper plate and the lower plate.
Further, the guide frame also comprises a pressing plate, wherein the pressing plate is fixed at the front end of the guide beam, and the width of the pressing plate exceeds the connecting plate.
Further, an upper mounting surface extends forwards upwards from the upper surface of the connecting plate, a lower mounting surface extends downwards from the lower surface of the connecting plate, the upper mounting surface penetrates through the upper plate and is fixed with the outer side of the upper plate, and the lower mounting surface penetrates through the lower plate and is fixedly connected with a mounting seat on the lower side of the lower plate.
Further, the mounting seat is formed by welding the lower plate of the anti-collision beam vertically.
Further, the honeycomb energy absorbing module comprises an aluminum honeycomb energy absorbing element, a bottom plate and a flange which are arranged at two ends of the aluminum honeycomb energy absorbing element, and a coating on the outer side.
The traditional anti-creeping energy-absorbing device has limited energy-absorbing capacity, only the energy-absorbing device can absorb energy, and the anti-collision beam can participate in energy absorption, so that the energy-absorbing capacity can reach more than twice that of the traditional light rail anti-creeping device, the energy absorption configuration is maximized in a limited space, and the collision safety is ensured. In addition, the guide structure and the energy absorbing device are designed in parallel, so that the whole structure is compact, occupied vehicle space is reduced, and the light-weight anti-climbing device for the light rail is realized.
Drawings
FIG. 1 is a schematic installation view of a lightweight compact light rail vehicle anti-climbing energy absorber of the present invention;
FIG. 2 is a view A-A of FIG. 1;
FIG. 3 is a side view of the lightweight compact light rail vehicle anti-climb energy absorber of the present invention;
FIG. 4 is a schematic view of an impact beam structure;
FIG. 5 is an overall schematic view of the lightweight compact light rail vehicle anti-climbing energy absorber of the present invention;
FIG. 6 is a schematic view of a guide frame structure;
FIG. 7 is a schematic diagram of a connection of an aluminum honeycomb energy absorption module to an impact beam structure;
FIG. 8 is a schematic diagram of a lightweight compact light rail vehicle anti-climbing energy absorber device in front of deformation of the invention;
FIG. 9 is a schematic illustration of a lightweight compact light rail vehicle anti-creep energy absorber of the present invention in a variant;
FIG. 10 is a schematic view of the lightweight compact light rail vehicle anti-climbing energy absorber of the present invention after deformation;
wherein: 1. an aluminum honeycomb energy absorption module; 2. an anti-collision beam structure; 3. a guide frame; 4. a vehicle body; 5. cutting a screw; 101. a flange; 102. coating; 103. a bottom plate; 201. a sloping plate; 202. a rear plate; 203. an upper plate; 204. a front plate; 205. anti-creeping toothed plate; 206. a support plate; 207. a lower plate; 208. a mounting base; 301. a guide beam; 302. a connecting plate; 303. a pressing plate; 3021. an upper mounting surface; 3022. and a lower mounting surface.
Detailed Description
Referring to fig. 1 to 3, the anti-creeping energy absorbing device comprises an aluminum honeycomb energy absorbing module 1, an anti-collision beam structure 2 and a guide frame 3, wherein the guide frame 3 is connected to the middle position behind the anti-collision beam structure 2, two aluminum honeycomb energy absorbing modules 1 are respectively connected to two sides of the anti-collision beam structure, the anti-creeping energy absorbing device is symmetrically arranged, and the guide frame 3 is fixedly connected to the end part of a vehicle body 4 through bolts.
Referring to fig. 4, the anti-collision beam structure 2 includes a front plate 204, a rear plate 202, an upper plate 203, a lower plate 207, and two side inclined plates 201, wherein the upper plates are splice welded into a space trapezoid structure and are internally reinforced by supporting plates 206, weight reduction or mounting holes are formed in the plates according to the shape of the plates, and holes for connecting the mounting guide frames 3 are formed in the rear plate 202, the upper plate 203, and the lower plate 207. An anti-creeping toothed plate 205 is welded on the outer side of the front plate 204. The mounting seat is arranged on the lower side of the lower plate of the anti-collision beam structure and is formed by welding the lower plate 207 of the anti-collision beam vertically and used for mounting the guide frame.
Referring to fig. 5, each aluminum honeycomb energy absorbing module 1 includes an aluminum honeycomb energy absorbing element, a bottom plate 103 and a flange 101 disposed at two ends of the aluminum honeycomb energy absorbing element, and a coating 102 disposed on the outer side, wherein the flange 101 is provided with a hole for connecting the anti-collision beam structure 2, and the aluminum honeycomb energy absorbing module flange 101 is connected with a rear plate of the anti-collision beam structure through bolts and nuts.
Referring to fig. 6, the guide frame 3 includes a guide beam 301, a connection plate 302, and a pressing plate 303. The guide beam 301 is n-shaped, and the lower end of the n-shaped is bent inwards and provided with a long hole for bolting the vehicle body. The connecting plate 302 is of a C-shaped structure, is sleeved on two sides of the guide beam 301 relatively, and is fixed with the guide beam 301 by using the shearing screw 5, and the shearing force of the shearing screw 5 is about 12.9kN, so that the connecting plate 302 can slide along the guide beam 301 after the shearing screw 5 is sheared; an upper mounting surface 3021 extends forwards from the upper surface of the connecting plate 302, a lower mounting surface 3022 extends downwards from the lower surface of the connecting plate 302, screw through holes are formed in the upper mounting surface 3021 and the lower mounting surface 3022, when the guide frame 6 is installed, the guide frame 3 penetrates through the process holes in the rear plate 203 of the anti-collision beam structure 2, part of the guide frame enters the anti-collision beam structure 2, the upper mounting surface 3021 of the connecting plate 302 extends to the outer side of the anti-collision beam structure 2 through the process holes in the upper plate 203 of the anti-collision beam structure 2, and the guide frame is fixed with the upper plate 203 of the anti-collision beam structure 2 through screw nuts. The lower mounting surface 3022 of the connection plate 302 is fixed to the mounting seat 208 on the lower side of the lower plate 207 by means of screw nuts through the process holes in the lower plate 207 of the impact beam structure 2. The pressing plate 303 is connected to the front end of the guide beam 301 with screws, and has a width slightly exceeding that of the connection plate 302, thereby functioning to restrict the connection plate 302 from sliding forward.
Referring to fig. 1 to 10, when a vehicle collides, the front end anti-creeping toothed plates 205 of the anti-collision beam structure 2 are engaged with each other, the anti-collision beam structure 2 transmits the received force to the connection plate 302, the shearing screw 5 connected to the connection plate 302 and the guide beam 301 is sheared, the anti-collision beam structure 2 slides backward along the guide beam through the connection plate 302 fixed thereto, the collision energy is transmitted to the aluminum honeycomb energy absorbing module 1 through the trapezoid structure of the anti-collision beam structure 2, the aluminum honeycomb energy absorbing module 1 at the rear of the crushing absorbs the collision energy, and after the aluminum honeycomb energy absorbing module 1 is completely crushed, the anti-collision beam structure 2 continues to absorb the collision energy by dissipating the collision energy through plastic deformation itself.
The invention relates to a light-weight compact light rail vehicle anti-climbing energy-absorbing device, which comprises an aluminum honeycomb energy-absorbing module: a stroke of 100mm, a crushing force value of 600kN and an absorbable energy of about 60kJ; energy absorption of the anti-collision beam structure: a crush stroke of 40mm, and can absorb about 24KJ of energy; the crushing stroke is 80mm, about 65kJ. In addition, compared with the traditional light rail anti-climbing device, the light rail anti-climbing device has larger occupied space, the guide structure and the energy absorber are designed to be connected in parallel, so that the whole structure is compact, the light weight of the light rail anti-climbing device is realized, the total weight is 63kg, the light rail anti-climbing device is reduced by 50% compared with the traditional anti-climbing device, the longitudinal size is 400mm, and the light rail anti-climbing device is reduced by 60% compared with the traditional light rail anti-climbing device.
Claims (3)
1. A light-weight compact light rail vehicle anti-climbing energy absorber is characterized in that: the anti-collision beam structure (2) comprises a front plate (204), a rear plate (202), an upper plate (203), a lower plate (207) and inclined plates (201) on two sides, wherein the front plate (204) is shorter than the rear plate (202), all the plates are fixedly connected to form a space trapezoid structure, holes for installing the guide frame (3) are formed in the rear plate (202), the upper plate (203) and the lower plate (207), and the front end of the anti-collision beam structure is fixedly connected with an anti-creeping toothed plate (205); the guide frame (3) comprises a guide beam (301) and a connecting plate (302), wherein the guide beam (301) is longitudinally arranged at the middle position of the rear end of the anti-collision beam structure (2), the guide beam (301) is of an n type, the lower end of the n type is inwards bent, and a long hole for connecting a vehicle body through a bolt is formed; the connecting plates (302) are C-shaped and sleeved on two sides of the guide beam (301), one ends of the connecting plates (302) are fixedly connected to the anti-collision beam structure (2), and the other ends of the connecting plates are connected to the guide beam (301) through the shearing screws (5); an upper mounting surface (3021) extends forwards upwards from the upper surface of the connecting plate (302), a lower mounting surface (3022) extends downwards from the lower surface of the connecting plate (302), the upper mounting surface (3021) penetrates through the upper plate (203) to be fixed with the outer side of the upper plate, and the lower mounting surface (3022) penetrates through the lower plate (207) to be fixedly connected with a mounting seat (208) on the lower side of the lower plate (207); the honeycomb energy absorption modules (1) are connected to two sides of the rear end of the anti-collision beam structure (2) and are symmetrically arranged; the guide frame (3) penetrates through the process hole of the rear plate (202), and part of the guide frame is arranged inside the anti-collision beam structure (2) and fixedly connected with the upper plate (203) and the lower plate (207); the guide frame (3) further comprises a pressing plate (303), wherein the pressing plate (303) is fixed at the front end of the guide beam (301) and the width of the pressing plate exceeds the width of the connecting plate (302); when a vehicle collides, the front end anti-creeping toothed plate (205) of the anti-collision beam structure (2) is meshed with each other, the anti-collision beam structure (2) transmits received force to the connecting plate (302), the shearing screw (5) connected with the guide beam (301) is sheared off, the anti-collision beam structure (2) slides backwards along the guide beam through the connecting plate (302) fixed with the anti-collision beam structure, collision energy is transmitted to the aluminum honeycomb energy absorbing module (1) through the trapezoid structure of the anti-collision beam structure (2), the aluminum honeycomb energy absorbing module (1) at the rear of crushing absorbs the collision energy, and after the aluminum honeycomb energy absorbing module (1) is completely crushed, the anti-collision beam structure (2) continuously absorbs the collision energy through plastic deformation dissipation of the anti-collision energy.
2. The lightweight compact light rail vehicle anti-creeping energy absorber of claim 1, wherein: the mounting seat (208) is formed by being welded with a lower plate (207) of the anti-collision beam structure (2) vertically.
3. The lightweight compact light rail vehicle anti-creeping energy absorber of claim 1, wherein: the honeycomb energy absorbing module (1) comprises an aluminum honeycomb energy absorbing element, a bottom plate (103) and a flange (101) which are arranged at two ends of the aluminum honeycomb energy absorbing element, and a lateral coating (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110935720.7A CN113619632B (en) | 2021-08-16 | 2021-08-16 | Light-weight compact type light rail vehicle anti-climbing energy-absorbing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110935720.7A CN113619632B (en) | 2021-08-16 | 2021-08-16 | Light-weight compact type light rail vehicle anti-climbing energy-absorbing device |
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| CN113619632A CN113619632A (en) | 2021-11-09 |
| CN113619632B true CN113619632B (en) | 2024-03-08 |
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