Array type rail vehicle energy absorption anti-climbing device

Abstract

The application discloses an array type rail vehicle energy absorption anti-climbing device, which comprises an anti-climbing plate, a plurality of main guide rods, a plurality of auxiliary guide rods, a base and a mounting seat. The base is provided with a plurality of main cutting holes and auxiliary cutting holes which are matched with the number and diameter of the main guide rods and the auxiliary guide rods. The main guide rods and the auxiliary guide rods are fixed at one end of the anti-climbing plate and embedded in the main cutting holes and the auxiliary cutting holes at the other end. A plurality of main cutting rings and auxiliary cutting rings are arranged on the main guide rods and the auxiliary guide rods along the length direction. The main guide rods are hollow tubes, the hollow tubes are provided with inner cutting rings and embedded with inner cutting knives, and the inner cutting knives are provided with supports which are fixed on the rail vehicle frame. The device has the advantages of stability and reliability and good energy absorption effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of rail transit crash energy absorption technology, and particularly relates to an array type rail vehicle energy absorption anti-climbing device. BACKGROUND

[0002] As a public transport tool, the passive safety of a rail vehicle in a crash has always been the focus of attention. In recent years, with the vigorous development of rail transit technology, the running speed of rail vehicles is increasing, and the safety of personnel and goods is facing greater threats. Therefore, under complex and high-speed crash conditions, it is urgent to further study the passive safety of rail vehicles.

[0003] In order to reduce the harm of rail vehicle crash accidents, an energy absorption structure is usually installed in the deformable area at the end of the vehicle to consume the impact kinetic energy when the rail vehicle crashes. A good energy absorption structure needs to meet the requirements of high energy absorption efficiency, controllable deformation, light weight and low peak load. Traditional energy absorption structures are various, but they generally have problems such as large residual deformation, low effective deformation stroke ratio, and limited structure energy absorption capacity. In addition, it is difficult for traditional energy absorption structures to simultaneously consider high cushioning capacity (low initial stiffness) and high energy absorption (high structural stiffness).

[0004] Therefore, it is of great significance to design a crash energy absorption device with low trigger peak force, high energy absorption efficiency and stable and controllable deformation for the study of the passive safety of rail vehicles. SUMMARY

[0005] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art and provide an array type rail vehicle energy absorption anti-climbing device that is stable and reliable and has good energy absorption effect.

[0006] To solve the above technical problems, the present application adopts the following technical solutions:

[0007] An array type rail vehicle energy absorption anti-climbing device, comprising an anti-climbing plate, a plurality of main guide rods, a plurality of auxiliary guide rods, a base and a mounting seat, the base is provided with a plurality of main cutting holes and auxiliary cutting holes matched in number and diameter, the main guide rods and the auxiliary guide rods are fixed at one end of the anti-climbing plate and embedded at the other end in the main cutting holes and the auxiliary cutting holes respectively, a plurality of main cutting rings and auxiliary cutting rings are respectively arranged at intervals along the length direction of the main guide rods and the auxiliary guide rods, the main guide rods are provided as hollow pipes, the hollow pipes are provided with inner cutting rings and embedded with inner cutting knives, and the inner cutting knives are provided with supports fixed on the rail vehicle frame.

[0008] As a further improvement of the above technical solutions:

[0009] The inner cutting knife is provided as a circular cutting knife.

[0010] The auxiliary cutting ring is arranged in an axial direction staggered with the main cutting ring, and the pipe cutting ring is arranged in an axial direction staggered with the main cutting ring.

[0011] The base is made of cemented carbide.

[0012] Each of the supports is coupled as a whole.

[0013] The anti-climbing plate and the base are filled with foaming material and are closed by an outer shell.

[0014] Compared with the prior art, the present application has the following advantages:

[0015] The arrayed rail vehicle energy-absorbing anti-climbing device of the present application, when a rail vehicle collision occurs, the anti-climbing plates on the two vehicles first contact each other, and through the anti-climbing teeth, they are engaged with each other to play an anti-climbing role. Subsequently, under the action of horizontal impact force, the main cutting ring and the auxiliary cutting ring on the main guide rod and the auxiliary guide rod are cut by the main cutting hole and the auxiliary cutting hole, respectively, and at the same time, the pipe cutting knife cuts the pipe cutting ring inside the main guide rod, so as to dissipate the impact kinetic energy of the rail vehicle. In this structure, the main cutting ring on the main guide rod serves as the main energy-absorbing component, and the auxiliary cutting ring on each auxiliary guide rod serves as the auxiliary energy-absorbing component, and the energy absorption is complementary. Through this multi-rod combined cutting energy-absorbing and the combination of internal and external cutting energy-absorbing of the main guide rod, the cutting surface is greatly increased, the initial buffering capacity of the overall structure during impact is improved, and the subsequent energy-absorbing buffering effect is greatly improved. During the cutting process, the main guide rod and the auxiliary guide rod play a guiding role, and at the same time of guiding the cutting energy-absorbing, a certain supporting force is provided. Further, the support arranged inside the main guide rod makes the guidance of the main guide rod more stable, ensuring the stability and reliability of the cutting energy-absorbing process. Further, through different arrayed design of the combination of the main guide rod and the auxiliary guide rod, the demand of different impact levels can be met, and the application range is wide and the designability is strong. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the appearance view of embodiment 1 of the present application.

[0017] Figure 2 is the internal structure schematic view of embodiment 1 of the present application.

[0018] Figure 3 is the internal structure schematic view (another view) of embodiment 1 of the present application.

[0019] Figure 4 is the sectional view of embodiment 1 of the present application.

[0020] Figure 5 is the base structure schematic view of embodiment 1 of the present application.

[0021] Figure 6 is the appearance diagram of embodiment 2 of the present application.

[0022] Figure 7 is the appearance diagram of embodiment 3 of the present application.

[0023] The various labels in the drawings represent the following:

[0024] 1, anti-climbing plate; 2, main guide rod; 21, main cutting ring; 22, inner pipe cutting ring; 3, auxiliary guide rod; 31, auxiliary cutting ring; 4, base; 41, main cutting hole; 42, auxiliary cutting hole; 5, mounting seat; 6, inner pipe cutting tool; 7, support; 8, foaming material; 9, outer shell. DETAILED DESCRIPTION

[0025] The present application will be further described in detail below in conjunction with the drawings and specific embodiments of the present application.

[0026] Embodiment 1:

[0027] As Figures 1 to 5As shown, the first embodiment of the arrayed rail vehicle energy-absorbing anti-climbing device of the present application comprises an anti-climbing plate 1, a main guide rod 2, four auxiliary guide rods 3, a base 4, and a mounting seat 5. The base 4 is provided with the main guide rod 2, the auxiliary guide rod 3, a plurality of main cutting holes 41 and auxiliary cutting holes 42 with matched number and diameter. The main guide rod 2 and the auxiliary guide rod 3 are fixed at one end of the anti-climbing plate 1 and embedded in the main cutting hole 41 and the auxiliary cutting hole 42 at the other end, respectively. The main guide rod 2 and the auxiliary guide rod 3 are provided with a plurality of main cutting rings 21 and auxiliary cutting rings 31, respectively, which are arranged along the length direction at intervals. The main guide rod 2 is provided as a hollow pipe, which is provided with an inner cutting ring 22 and an inner cutting tool 6. The inner cutting tool 6 is provided with a bracket 7 fixed on the rail vehicle framework. The base 4 and the mounting seat 5 of the energy-absorbing anti-climbing device are fixed by bolts, and the mounting seat 5 is also bolted on the air-tight partition wall of the rail vehicle. The bracket 7 is fixed on the vehicle framework. When the rail vehicle collides, the anti-climbing plates 1 of the two vehicles first contact each other. The anti-climbing teeth are engaged with each other to prevent climbing. Then, under the action of the horizontal impact force, the main cutting rings 21 and the auxiliary cutting rings 31 on the main guide rod 2 and the auxiliary guide rod 3 are cut by the main cutting hole 41 and the auxiliary cutting hole 42, respectively. At the same time, the inner cutting tool 6 cuts the inner cutting ring 22 inside the main guide rod 2 to dissipate the impact energy of the rail vehicle. In this structure, the main cutting ring 21 on the main guide rod 2 serves as the main energy-absorbing component, and the auxiliary cutting ring 31 on each auxiliary guide rod 3 serves as the auxiliary energy-absorbing component. The energy absorption is complementary. Through the multi-rod combined cutting energy absorption and the inner and outer cutting energy absorption of the main guide rod 2, the cutting surface is greatly increased, the initial buffering capacity of the overall structure during impact is improved, and the subsequent energy-absorbing buffering effect is greatly improved. During the cutting process, the main guide rod 2 and the auxiliary guide rod 3 play a guiding role, providing a certain supporting force while guiding the cutting energy absorption. Further, the bracket 7 provided inside the main guide rod 2 makes the guidance of the main guide rod 2 more stable, ensuring the stability and reliability of the cutting energy absorption process.

[0028] In this embodiment, the inner cutting tool 6 is provided as a circular ring cutting tool. In this structure, the debris of the inner cutting ring 22 after being cut can be discharged from the inner hole thereof to increase the effective energy-absorbing stroke of the energy-absorbing anti-climbing device.

[0029] In this embodiment, the auxiliary cutting ring 31 is arranged in a staggered manner along the axial direction with the main cutting ring 21, and the inner cutting ring 22 is arranged in a staggered manner along the axial direction with the main cutting ring 21. Through the staggered distribution of the auxiliary cutting ring 31, the inner cutting ring 22, and the main cutting ring 21, the cutting energy absorption process is continuous and stable and reliable.

[0030] In this embodiment, the base 4 is made of hard alloy.

[0031] In this embodiment, foam material 8 is filled between the anti-climb plate 1 and the base 4, and an outer shell 9 is provided for sealing. Filling with foam material 8 further improves the energy absorption and buffering effect of the overall structure.

[0032] Example 2:

[0033] like Figure 6 As shown, the second embodiment of the array-type energy-absorbing anti-climbing device for rail vehicles of the present invention is basically the same as that of embodiment 1, except that:

[0034] In this embodiment, the energy-absorbing anti-climb device includes two main guide rods 2 and two secondary guide rods 3. Compared with Embodiment 1, this energy-absorbing anti-climb device adds a main guide rod 2, which increases the energy-absorbing and buffering effect of the overall structure.

[0035] Example 3:

[0036] like Figure 7 As shown, the third embodiment of the array-type energy-absorbing anti-climbing device for rail vehicles of the present invention is basically the same as that of embodiment 1, except that:

[0037] In this embodiment, the energy-absorbing anti-climb device includes three main guide rods 2 and four secondary guide rods 3. Compared with Embodiment 1, this energy-absorbing anti-climb device adds two main guide rods 2, increasing the energy-absorbing and buffering effect of the overall structure.

[0038] In this embodiment, all supports 7 are connected as a whole. Connecting all supports 7 as a whole allows for overall force distribution, thus improving stability.

[0039] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the invention. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the scope of the present invention, should fall within the protection scope of the present invention.

Claims

1. An array-type energy-absorbing anti-climbing device for rail vehicles, characterized in that: The system includes an anti-climb plate (1), several main guide rods (2), several secondary guide rods (3), a base (4), and a mounting base (5). The base (4) is provided with several main cutting holes (41) and secondary cutting holes (42) matching the number and diameter of the main guide rods (2) and secondary guide rods (3). One end of each main guide rod (2) and secondary guide rod (3) is fixed to the anti-climb plate (1), and the other end is embedded in the main cutting hole (41) and secondary cutting hole (42), respectively. Multiple main cutting rings (21) and secondary cutting rings (31) are provided at intervals along the length direction on the main guide rods (2) and secondary guide rods (3). The main guide rod (2) is a hollow tube, and an internal cutting ring (22) is provided inside the hollow tube and embedded in the tube. An in-tube cutting blade (6) is inserted, and a bracket (7) fixed to the rail vehicle frame is provided on the in-tube cutting blade (6); the secondary cutting ring (31) is arranged in a staggered manner with the main cutting ring (21) in the axial direction, and the in-tube cutting ring (22) is arranged in a staggered manner with the main cutting ring (21) in the axial direction; anti-climbing plates are provided with anti-climbing teeth. When the rail vehicles collide, the anti-climbing plates on the two vehicles first come into contact and the anti-climbing teeth bite each other to play an anti-climbing role. Then, under the action of horizontal impact force, the main cutting ring and the secondary cutting ring on the main guide rod and the secondary guide rod are cut by the main cutting hole and the secondary cutting hole, respectively. At the same time, the in-tube cutting blade cuts the in-tube cutting ring inside the main guide rod to dissipate the impact kinetic energy of the rail vehicle.

2. The array-type energy-absorbing anti-climb device for rail vehicles according to claim 1, characterized in that: The in-tube cutting tool (6) is configured as a circular annular cutting tool.

3. The array-type energy-absorbing anti-climb device for rail vehicles according to claim 1, characterized in that: The base (4) is made of hard alloy.

4. The array-type energy-absorbing anti-climb device for rail vehicles according to claim 1, characterized in that: The brackets (7) are connected as a whole.

5. The array-type energy-absorbing anti-climb device for rail vehicles according to any one of claims 1 to 4, characterized in that: The anti-climb plate (1) and the base (4) are filled with foam material (8) and enclosed by an outer shell (9).

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