Novel two-way bearing honeycomb anti-creeper

Abstract

A novel bidirectional bearing honeycomb anti-creeper relates to the technical field of anti-creeper, and comprises a mounting base, a buffer assembly and anti-creeper teeth, the mounting base is connected with the buffer assembly, the buffer assembly is connected with the anti-creeper teeth, the buffer assembly comprises a thin-wall shell and a bidirectional bearing corrugated honeycomb structure, the bidirectional bearing corrugated honeycomb structure is arranged in the thin-wall shell, and the anti-creeper teeth are arranged in the thin-wall shell. The thin-wall shell comprises a side plate, an upper skin and a lower skin, the upper skin is combined with the upper surface of the side plate, and the lower skin is combined with the lower surface of the side plate. The variable amplitude sine wave is introduced in the axial direction on the basis of a traditional honeycomb cell element, the bending angle is added in the radial direction, the oneness of the bearing direction of a traditional honeycomb is broken through, the honeycomb can bear longitudinal loads, and the bearing capacity in the vertical direction is remarkably improved. Compared with a traditional honeycomb anti-creeper, the energy absorption capacity is higher, axial ordered deformation can be kept when the anti-creeper resists vertical force, and dependence on a traditional drawer guide mode is eliminated.

Description

Technical Field

[0001] This invention relates to the field of anti-climbing device technology, and more specifically, to a novel bidirectional load-bearing cellular anti-climbing device. Background Technology

[0002] In rail transit systems, train safety and stability are core considerations. As a critical structure, the design and performance of anti-creep devices directly affect the train's energy absorption and impact mitigation capabilities in collisions, thus impacting the safety of passengers and staff. Hexagonal corrugated anti-creep devices are widely used in engineering due to their excellent axial load-bearing capacity. However, their radial load-bearing capacity is significantly weak. To overcome this limitation, researchers often install honeycomb structures axially within the anti-creep device to enhance its longitudinal load-bearing capacity. Nevertheless, this approach results in a much lower vertical load-bearing capacity compared to the longitudinal capacity, thus limiting its effectiveness in complex collision scenarios.

[0003] During train operation, a specific height deviation must be maintained between the front and rear anti-creep devices to ensure engagement conditions and thus guarantee train stability at high speeds. However, in actual production, due to processing errors and differences in train head-up frequency, the anti-creep plates may encounter uneven loads, i.e., off-center loading. This off-center loading can cause the anti-creep device to bear excessive vertical loads, affecting the overall stability of its internal structure. In particular, when the honeycomb structure inside the anti-creep device is subjected to such uneven loads, it will rapidly deform laterally, weakening not only the energy absorption capacity of the anti-creep device but also reducing its anti-creep effectiveness, posing a threat to train safety. To address these issues, existing honeycomb anti-creep structures often employ a drawer-type design, but this design occupies valuable space resources at the front of the car body and requires a larger volume while pursuing efficient energy absorption. Summary of the Invention

[0004] The purpose of this invention is to solve the problems mentioned in the background art above, and to propose a novel bidirectional load-bearing cellular anti-climb device.

[0005] The technical solution adopted by this invention to solve its technical problem is:

[0006] A novel bidirectional load-bearing honeycomb anti-climb device includes a mounting base, a buffer assembly, and anti-climb teeth. The buffer assembly is connected to the mounting base, and the anti-climb teeth are connected to the buffer assembly. The buffer assembly includes a thin-walled outer shell and a bidirectional load-bearing corrugated honeycomb structure. The bidirectional load-bearing corrugated honeycomb structure is placed inside the thin-walled outer shell and connected to the thin-walled outer shell. The thin-walled outer shell includes a side plate, an upper skin, and a lower skin. The upper skin is combined with the upper surface of the side plate, and the lower skin is combined with the lower surface of the side plate.

[0007] Furthermore, the buffer assembly is fixedly connected to the mounting base and / or anti-climb teeth by means of bolts or rivets.

[0008] Furthermore, the mounting base is provided with four mounting holes.

[0009] Furthermore, the bidirectional load-bearing corrugated honeycomb structure is composed of several corrugated honeycomb cells stacked and bonded together.

[0010] Furthermore, the bidirectional load-bearing corrugated honeycomb structure introduces a variable amplitude sine wave along the axial direction and has a bending angle in the radial direction.

[0011] Furthermore, the side length L and thickness t of the corrugated honeycomb cell are determined by...

[0012] The decision is as follows: H represents the total height of the cell, A and T are the amplitude and period, and a and b control the amplitude and shape of the sine wave, respectively.

[0013] Furthermore, the thin-walled outer shell and the bidirectional load-bearing corrugated honeycomb structure are connected and fixed by fiber resin adhesive.

[0014] Furthermore, the side plates of the thin-walled outer shell are provided with spaced grooves along the axial direction.

[0015] Furthermore, the thickness of the groove decreases sequentially from the anti-climb teeth to the mounting base, causing the honeycomb anti-climb device to deform sequentially along the axial direction.

[0016] Compared with existing technologies, the beneficial effects of this invention are as follows: This invention is composed of a mounting base, anti-climb teeth, and a bidirectional load-bearing corrugated honeycomb buffer device. The bidirectional load-bearing corrugated honeycomb buffer device is composed of a thin-walled shell and a bidirectional load-bearing honeycomb structure. The bidirectional load-bearing corrugated honeycomb structure is characterized by introducing a variable amplitude sine wave in the vertical plane of the hexagonal honeycomb unit wall, solving the problem of the unidirectional load-bearing capacity of traditional honeycomb structures. The design of the corrugated honeycomb anti-climb device has been optimized, enabling it to withstand not only longitudinal loads but also significantly enhancing its load-bearing capacity in the vertical direction. Compared with traditional honeycomb anti-climb devices, its energy absorption capacity is significantly improved, and it can effectively resist vertical forces during collisions while maintaining orderly axial deformation. This honeycomb anti-climb device with bidirectional load-bearing capacity can eliminate the reliance on traditional drawer-guided methods. This design innovation significantly reduces the space required for actual installation of the honeycomb anti-climb device, making it more adaptable to the operational needs of modern train formations, improving space utilization efficiency and the overall flexibility of the train. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is an exploded view of the present invention;

[0019] Figure 3 A 3D view of the buffer component;

[0020] Figure 4 This is a top view of the buffer component;

[0021] Figure 5 This is a schematic diagram of the side panel of the buffer assembly;

[0022] Figure 6 Design process for bidirectional load-bearing corrugated honeycomb structure;

[0023] The components include: 1 mounting base, 2 buffer assembly, 3 anti-climb teeth, 4 traditional honeycomb cell, 21 bidirectional load-bearing corrugated honeycomb structure, 22 thin-walled shell, 211 corrugated honeycomb cell, 221 upper skin, 222 side plate, 223 lower skin, 2111 bending angle, and 2221 groove. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. The present invention will be further described with reference to the accompanying drawings and embodiments:

[0025] like Figures 1-2 As shown, a novel bidirectional load-bearing cellular anti-climb device includes a mounting base 1, a buffer assembly 2, and anti-climb teeth 3. The buffer assembly is connected to the mounting base, and the anti-climb teeth are connected to the buffer assembly. The synergistic effect of these three parts forms a complete force transmission path. Its core function is to effectively prevent the climbing phenomenon between trains when a collision occurs, while providing load-bearing and energy absorption effects. This design significantly reduces the damage to the vehicle structure caused by train collisions, thereby reducing potential casualties and improving the safety of rail transit vehicles in accidents.

[0026] Furthermore, the buffer assembly is fixedly connected to the mounting base and / or anti-climb teeth by means of bolts or rivets.

[0027] In at least one embodiment, the mounting base is provided with four mounting holes for the anti-climb device to be securely installed at the location where a collision occurs.

[0028] In at least one embodiment, the buffer assembly includes a thin-walled outer shell 22 and a bidirectional load-bearing corrugated honeycomb structure 21. The bidirectional load-bearing corrugated honeycomb structure is placed inside and connected to the thin-walled outer shell. The thin-walled outer shell includes side plates 222, an upper skin 221, and a lower skin 223. The upper skin is combined with the upper surface of the side plates, and the lower skin is combined with the lower surface of the side plates. Together, they form a protective shell, providing stable support for the internal honeycomb structure. This design effectively prevents damage such as deformation, stacking, or warping of the bidirectional load-bearing corrugated honeycomb structure 21 under minor loads. Through the synergistic operation of this structure, the buffer assembly 2 significantly improves the load-bearing capacity of the anti-climb device in both longitudinal and vertical directions, thereby enhancing the overall reliability of the anti-climb device.

[0029] The design and installation of the buffer assembly ensures that its axially opposed bidirectional load-bearing corrugated honeycomb structure 21 corresponds to the longitudinal direction of the anti-climb device, while its coplanar (radial) structure corresponds to the vertical direction of the anti-climb device. This layout allows the buffer assembly to perform its load-bearing and buffering functions in both directions, thereby improving the performance of the anti-climb device under different stress conditions.

[0030] Furthermore, the bidirectional load-bearing corrugated honeycomb structure 21 is composed of a plurality of corrugated honeycomb cells 211 stacked and bonded together.

[0031] In at least one embodiment, the bidirectional load-bearing corrugated honeycomb structure introduces a variable-amplitude sine wave along the axial direction on the traditional honeycomb cell 4, and has a bending angle 2111 in the radial direction, breaking the single load-bearing direction of the traditional honeycomb. This achieves the purpose of bidirectional buffering and energy absorption.

[0032] Furthermore, the side length L and thickness t of the corrugated honeycomb cell 211 are determined by...

[0033] The decision is as follows: H represents the total height of the cell, A and T are the amplitude and period, and a and b control the amplitude and shape of the sine wave, respectively.

[0034] The novel bidirectional load-bearing honeycomb anti-climb device can adjust the honeycomb size and the width, spacing, and thickness of the side plate grooves according to actual load conditions to meet load requirements. This bidirectional load-bearing honeycomb anti-climb device can simultaneously meet load requirements in two directions, maximizing its buffering and energy absorption effect, reducing the actual installation area occupied by the equipment, and achieving optimal buffering and absorption performance.

[0035] Furthermore, the thin-walled outer shell 22 and the bidirectional load-bearing corrugated honeycomb structure 21 are connected and fixed by fiber resin adhesive.

[0036] Furthermore, the upper surface of the upper skin 221 and the upper surface of the side plate 222, and the lower surface of the lower skin 223 and the lower surface of the side plate 222 can be connected together by adhesive, bolts or other connection methods.

[0037] In at least one embodiment, the side plate 222 of the thin-walled housing 22 is provided with spaced grooves 2221 along the axial direction.

[0038] Furthermore, the thickness of the groove 2221 decreases sequentially from the anti-climb teeth to the mounting base, causing the honeycomb anti-climb device to deform sequentially along the axial direction.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel bidirectional load-bearing cellular anti-climb device, characterized in that, The device includes a mounting base, a buffer assembly, and anti-climb teeth. The buffer assembly is connected to the mounting base, and the anti-climb teeth are connected to the buffer assembly. The buffer assembly includes a thin-walled outer shell and a bidirectional load-bearing corrugated honeycomb structure. The bidirectional load-bearing corrugated honeycomb structure is placed inside the thin-walled outer shell and connected to it. The thin-walled outer shell includes a side plate, an upper skin, and a lower skin. The upper skin is combined with the upper surface of the side plate, and the lower skin is combined with the lower surface of the side plate.

2. The novel bidirectional load-bearing cellular anti-climb device according to claim 1, characterized in that, The buffer assembly is fixedly connected to the mounting base and / or anti-climb teeth by means of bolts or rivets.

3. The novel bidirectional load-bearing cellular anti-climb device according to claim 1 or 2, characterized in that, The mounting base has four mounting holes.

4. The novel bidirectional load-bearing cellular anti-climb device according to claim 1, characterized in that, The bidirectional load-bearing corrugated honeycomb structure is composed of several corrugated honeycomb cells stacked and bonded together.

5. The novel bidirectional load-bearing cellular anti-climb device according to claim 4, characterized in that, The bidirectional load-bearing corrugated honeycomb structure introduces a variable amplitude sine wave along the axial direction and has a bending angle in the radial direction.

6. The novel bidirectional load-bearing cellular anti-climb device according to claim 5, characterized in that, The side length L and thickness t of the corrugated honeycomb cell are determined by... The decision is as follows: H represents the total height of the cell, A and T are the amplitude and period, and a and b control the amplitude and shape of the sine wave, respectively.

7. The novel bidirectional load-bearing cellular anti-climb device according to claim 1, characterized in that, The thin-walled outer shell and the bidirectional load-bearing corrugated honeycomb structure are connected and fixed by fiber resin adhesive.

8. The novel bidirectional load-bearing cellular anti-climb device according to claim 1, characterized in that, The side plates of the thin-walled shell are provided with spaced grooves along the axial direction.

9. The novel bidirectional load-bearing cellular anti-climb device according to claim 8, characterized in that, The thickness of the groove decreases in an orderly manner from the anti-climb teeth to the mounting base, causing the honeycomb anti-climb device to deform in an orderly manner along the axial direction.

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