Rotary cutting type train energy-absorbing anti-creeper

Abstract

A rotary cutting type train energy-absorbing anti-creeper relates to the field of anti-creeper and comprises a base and an energy-absorbing pipe, a guide sleeve is arranged in the middle of the base, a first guide groove is formed in the outer surface of the guide sleeve, a plurality of guide balls are mounted in the first guide groove, a second guide groove is formed in the inner surface of the energy-absorbing pipe, and a plurality of guide balls are mounted in the second guide groove. The second guide grooves are matched with the guide balls, spiral lines are formed by the first guide grooves and the second guide grooves, the end of the energy absorption pipe is rotationally connected with an anti-creeper front end plate, a plurality of anti-creeping teeth are arranged on the anti-creeper front end plate, an outer mounting pipe is arranged on the base, a plurality of cutting tools are inserted into the outer mounting pipe, and the outer mounting pipe is connected with the outer mounting pipe. According to the spiral cutting energy-absorbing device, through the innovative spiral cutting design, the cutting energy-absorbing path is remarkably increased, and compared with a traditional linear cutting energy-absorbing device, the cutting energy-absorbing effect is greatly improved under the condition of the energy-absorbing pipe with the same length, so that the safety of a train is more effectively guaranteed.

Description

Technical Field

[0001] This invention relates to the field of anti-climb devices, and more specifically, to a rotary cutting type train energy-absorbing anti-climb device. Background Technology

[0002] Railways, as a vital national infrastructure, are undeniably important. Especially in my country, a country with a large number of trains, the number of trains in operation has been increasing year by year. By the end of 2023, the total operating mileage of railways nationwide had reached an astonishing 159,000 kilometers. This enormous figure not only demonstrates the remarkable achievements of my country's railway construction but also highlights the vital role of trains in the national economy and their crucial function as the preferred mode of transportation for the people. In train design, safety has always been the core and top priority. To ensure the safe operation of trains, designers divide safety design into two main categories: active safety design and passive safety design. With the rapid development of computer control technology, active safety systems have significantly reduced the possibility of train collisions. However, technology is not omnipotent; if signals are lost or control units are damaged, the active control system may fail.

[0003] Among numerous passive safety devices, the anti-creep device is undoubtedly one of the most important energy-absorbing and buffering devices. Its design goal is to absorb as much energy as possible during a collision within the limited space of the train's connection points, thereby mitigating the impact on the train and passengers. Simultaneously, the anti-creep device must also ensure that the train's body structure does not undergo excessive deformation during energy absorption to protect passenger safety.

[0004] More importantly, for rear-end collisions, which have a high incidence rate in train accidents, anti-creep devices must be able to prevent trains from climbing onto the other train. "Climbing" refers to the phenomenon where, when one train rear-ends another, the impact force is so great that the following train may partially or completely "climb" onto the preceding train, causing even more serious consequences. Therefore, the design of anti-creep devices must not only consider energy absorption and structural protection, but also effectively prevent this climbing phenomenon from occurring. Summary of the Invention

[0005] The purpose of this invention is to solve the problems mentioned in the background art, and thus proposes a rotary cutting type train energy-absorbing anti-climb device.

[0006] The technical solution adopted by this invention to solve its technical problem is:

[0007] A rotary cutting type train energy-absorbing anti-climb device includes a base and an energy-absorbing tube. The base has a guide sleeve in the middle, and the outer surface of the guide sleeve has a first guide groove. Several guide balls are installed in the first guide groove. The inner surface of the energy-absorbing tube has a second guide groove, which cooperates with the guide balls. The first guide groove and the second guide groove form a spiral. The end of the energy-absorbing tube is rotatably connected to the front end plate of the anti-climb device. The front end plate of the anti-climb device has several anti-climb teeth. The base has an outer mounting tube, which is coaxial with the guide sleeve. Several cutting tools are inserted into the outer mounting tube. The open end face of the energy-absorbing tube has several infeed grooves, and the infeed groove notches are oriented at the same angle as the spiral of the second guide groove.

[0008] Furthermore, a ball roller bearing is installed on the front end plate of the anti-climb device, and an energy-absorbing tube is connected inside the ball roller bearing.

[0009] Furthermore, the front end plate of the anti-climb device is provided with a cylindrical groove for accommodating the installation of a ball roller bearing. The outer ring of the rolling bearing is fixed to the cylindrical groove by welding, and the inner ring of the rolling bearing is fixed to the energy-absorbing tube by welding.

[0010] Furthermore, the energy-absorbing tube has an open end and a closed end, and the spiral path of the second guide groove extends from the open end of the energy-absorbing tube to the closed end of the energy-absorbing tube.

[0011] Furthermore, the base is provided with several positioning holes.

[0012] Furthermore, the outer mounting tube is provided with three mounting holes, and cutting tools are installed in the mounting holes.

[0013] Furthermore, the three mounting holes are in a straight line, and the distance between the centers of adjacent mounting holes is less than the pitch of the helix of the second guide groove.

[0014] Furthermore, the energy-absorbing tube is made of high-strength aluminum alloy.

[0015] Furthermore, when the guide sleeve extends into the energy-absorbing tube, the cutting tool gets stuck in the feed groove on the opening end face of the energy-absorbing tube.

[0016] Compared with existing technologies, the advantages of this invention are as follows: Through its innovative helical cutting design, this invention significantly increases the cutting energy absorption path. Compared to traditional linear cutting energy absorption devices, it greatly improves the cutting energy absorption effect with the same length of energy absorption tube, thus more effectively ensuring train safety. Furthermore, this anti-creep device has a simple structure, is easy to install, and allows for adjustment of the number of cutting tools according to the mass of different train models to adapt to various collision energy absorption requirements, demonstrating broad application prospects and significant practical value. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3 This is a schematic diagram of the front panel of the anti-climb device;

[0020] Figure 4 This is a structural diagram showing the base with a guide sleeve and an outer mounting tube installed.

[0021] Figure 5 This is a schematic diagram of the structure when an energy-absorbing tube is installed on the front end plate of the anti-climb device;

[0022] The components include: 1. base, 2. guide sleeve, 22. first guide groove, 23. guide ball, 3. outer mounting tube, 32. mounting hole, 4. cutting tool, 5. energy-absorbing tube, 52. second guide groove, 6. ball roller bearing, 7. anti-climb device front end plate, and 71. anti-climb teeth. Detailed Implementation

[0023] 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:

[0024] like Figures 1-5 As shown, a rotary cutting type train energy-absorbing anti-climb device includes a base 1 and an energy-absorbing tube 5. The base has a guide sleeve 2 in the middle, and the outer surface of the guide sleeve has a first guide groove 22. Several guide balls 23 are installed in the first guide groove. The inner surface of the energy-absorbing tube 5 has a second guide groove 52, which cooperates with the guide balls. The first guide groove and the second guide groove form a spiral. The end of the energy-absorbing tube is rotatably connected to the front end plate 7 of the anti-climb device. Several anti-climb teeth 71 are provided on the front end plate of the anti-climb device. The base has an outer mounting tube 3, which is coaxial with the guide sleeve. Several cutting tools 4 are inserted into the outer mounting tube. The open end face of the energy-absorbing tube has several infeed grooves. The notch of the infeed groove is oriented at the same angle as the spiral of the second guide groove to facilitate the entry of the cutting tool.

[0025] In at least one embodiment, a ball roller bearing 6 is installed on the front end plate of the anti-climb device, and an energy-absorbing tube is connected inside the ball roller bearing.

[0026] Furthermore, the front end plate 7 of the anti-climb device is provided with a cylindrical groove for accommodating the installation of a ball roller bearing. The outer ring of the rolling bearing is fixed to the cylindrical groove by welding, and the inner ring of the rolling bearing is fixed to the energy-absorbing tube 5 by welding.

[0027] Furthermore, the energy-absorbing tube has an open end and a closed end, and the spiral path of the second guide groove extends from the open end of the energy-absorbing tube to the closed end of the energy-absorbing tube.

[0028] Furthermore, the base 1 is provided with a plurality of positioning holes 11, and bolts can be installed in the positioning holes to connect with the train.

[0029] Furthermore, the outer mounting tube 2 is provided with three mounting holes 32, and a cutting tool 4 is installed in each mounting hole.

[0030] Specifically, in this embodiment, up to three cutting tools can be installed.

[0031] Furthermore, the three mounting holes are in a straight line, and the distance between the centers of adjacent mounting holes is less than the pitch of the helix of the second guide groove.

[0032] Furthermore, the energy-absorbing tube is made of high-strength aluminum alloy.

[0033] In at least one embodiment, when the guide sleeve extends into the energy-absorbing tube, the cutting tool is stuck in the feed groove at the opening end face of the energy-absorbing tube, which plays a certain role in fixing it.

[0034] The working method involves fixing the base to the train with bolts, ensuring the positioning holes are aligned with the train's installation position. The guide sleeve and outer mounting tube are welded to the base, ensuring they are coaxial. The guide sleeve extends a distance into the guide groove inside the energy-absorbing tube, connecting the energy-absorbing tube. Simultaneously, the energy-absorbing tube is adjusted so that the feed groove on one side contacts the cutting tool of the outer mounting tube. The cutting tool is engaged in the feed groove, providing positioning and fixation. At this point, guide balls are embedded in the first and second guide grooves, forming a helical connection. An anti-climb front plate is installed at the open end of the energy-absorbing tube and connected via ball roller bearings, ensuring the anti-climb teeth on the anti-climb front plate are correctly installed. The cutting tool is inserted into the mounting hole of the outer mounting tube, ensuring the cutting tool tip is aligned with the feed groove of the energy-absorbing tube.

[0035] During normal train operation, the rotary cutting type energy-absorbing anti-creep device is in standby mode and does not participate in any train operation functions. In the event of a collision, the front plate of the anti-creep device is subjected to axial pressure, pushing the energy-absorbing tube backward. Due to the cooperation of the guide sleeve and the internal spiral guide groove of the energy-absorbing tube, the tube rotates simultaneously with its backward movement. During this process, the cutting tool cuts and absorbs energy along the spiral line. By changing the number of cutting tools, the amount of energy absorbed can be varied, making it suitable for various vehicle weight models. Compared to traditional linear cutting energy-absorbing devices, spiral cutting energy absorption significantly increases the cutting energy absorption path. Therefore, with the same length of energy-absorbing tube, this device greatly increases cutting energy absorption, ensuring train safety.

[0036] 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 rotary cutting type train energy-absorbing anti-climb device, characterized in that, The device includes a base and an energy-absorbing tube. The base has a guide sleeve in the middle, and the outer surface of the guide sleeve has a first guide groove. Several guide balls are installed in the first guide groove. The inner surface of the energy-absorbing tube has a second guide groove, which cooperates with the guide balls. The first guide groove and the second guide groove form a spiral. An anti-climbing device front plate is rotatably connected to the end of the energy-absorbing tube. The anti-climbing device front plate has several anti-climbing teeth. The base has an outer mounting tube, which is coaxial with the guide sleeve. Several cutting tools are inserted into the outer mounting tube. The open end face of the energy-absorbing tube has several infeed grooves, and the infeed groove notches are oriented at the same angle as the spiral of the second guide groove.

2. The rotary cutting type train energy-absorbing anti-climb device according to claim 1, characterized in that, The anti-climb device has a ball roller bearing installed on its front end plate, and an energy-absorbing tube is connected inside the ball roller bearing.

3. The rotary cutting type train energy-absorbing anti-climb device according to claim 1 or 2, characterized in that, The front end plate of the anti-climb device is provided with a cylindrical groove for accommodating the installation of a ball roller bearing. The outer ring of the rolling bearing is fixed to the cylindrical groove by welding, and the inner ring of the rolling bearing is fixed to the energy-absorbing tube by welding.

4. The rotary cutting type train energy-absorbing anti-climb device according to claim 1, characterized in that, The energy-absorbing tube is open at one end and closed at the other end, and the spiral path of the second guide groove extends from the open end of the energy-absorbing tube to the closed end of the energy-absorbing tube.

5. The rotary cutting type train energy-absorbing anti-climb device according to claim 4, characterized in that, The base is provided with several positioning holes.

6. The rotary cutting type train energy-absorbing anti-climb device according to claim 1, characterized in that, The outer mounting tube has three mounting holes, and cutting tools are installed in the mounting holes.

7. The rotary cutting type train energy-absorbing anti-climb device according to claim 6, characterized in that, The three mounting holes are in a straight line, and the distance between the centers of adjacent mounting holes is less than the pitch of the helix of the second guide groove.

8. The rotary cutting type train energy-absorbing anti-climb device according to claim 1, characterized in that, The energy-absorbing tube is made of high-strength aluminum alloy.

9. The rotary cutting type train energy-absorbing anti-climb device according to claim 7, characterized in that, When the guide sleeve extends into the energy-absorbing tube, the cutting tool gets stuck in the feed groove on the opening end face of the energy-absorbing tube.

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