Traction device of maglev train and maglev train

Abstract

This disclosure provides a traction device for a maglev train and a maglev train. The traction device includes: a tie rod tube, one end of which is connected to the upper seat of the maglev train; a tie rod seat, which is connected to the other end of the tie rod tube; a screw, one end of which is connected to the tie rod seat; a traction seat, the other end of which passes through the traction seat and is slidably connected to it, and the traction seat is also connected to the longitudinal beam of the maglev train; a longitudinal vibration damping mechanism, which includes a rubber column and a butterfly spring, both of which are sleeved on the screw; and a vertical vibration damping mechanism, which includes a spherical pad, which is mounted on the traction seat, and the other end of which passes through the spherical pad and is slidably connected to the traction seat. The traction device of this invention, through the longitudinal and vertical vibration damping mechanisms, reduces the impact force of the suspension frame on the carriage in the longitudinal and vertical directions, thereby further improving the comfort of the carriage and the smoothness and safety of the maglev train operation.

Description

Technical Field

[0001] This disclosure relates to the field of maglev train technology, and more particularly to a traction device for a maglev train and a maglev train. Background Technology

[0002] The suspension frame, a crucial component of maglev trains, is located between the carriages and the track. Its primary functions are to bear and transmit loads related to levitation, guidance, drive, and braking; to adapt to various geometric twists and irregularities of the track; to mitigate carriage vibrations; and to ensure safe operation of the train at maximum speed. Figure 5 As shown, the traction device, as one of the key force-transmitting components of the suspension frame, mainly consists of an upper seat 2, a tie rod 3, and a lower seat 4, which are connected to the slide 1 and longitudinal beam 5 via connecting bolts. Its main function is to transmit the longitudinal force between the suspension frame and the car body, while simultaneously enabling the suspension frame to move laterally and rotate relative to the car body within a reasonable range. When the train accelerates or decelerates, the impact and load from the suspension frame are transmitted to the car body along the lower seat 4, tie rod 3, upper seat 2, and slide 1. The vibration and impact are clearly felt inside the carriage, thus affecting the comfort of the carriage.

[0003] Therefore, in existing technologies, maglev trains use a traction rod device with buffer to reduce vibration, such as... Figure 6 As shown, the device includes a mounting base 10, a guide rod 8, a first elastic buffer 9, and a second elastic buffer 11. The mounting base 10 has several through holes, and a guide rod 8 is provided in each through hole. The guide rod 8 can move axially along the through hole. Both ends of the guide rod 8 extend out of the through hole. One end of the guide rod 8 is provided with a limiting member, and the first elastic buffer is located between the limiting member and the mounting base 10. The other end of the guide rod 8 is used to connect with the support 7 of the traction rod 6. The second elastic buffer 11 is disposed between the mounting base 10 and the support 7 of the traction rod 6.

[0004] While existing technology utilizes the sliding of the support 7 along the guide rod 8 to meet the requirements of the traction device's telescopic deformation, the initial installation position of the traction rod device is at an angle to the horizontal plane. This results in a vertical component force during load transmission, meaning that the vertical vibration and impact from the suspension frame can still be felt inside the carriage during train operation, thus affecting comfort. Therefore, how to simultaneously avoid the vibration and impact of longitudinal and vertical forces on the carriage to further improve comfort is a problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] To address the aforementioned technical problems, one aspect of this disclosure provides a traction device for a maglev train, comprising: a pull rod tube, one end of which is connected to the upper seat of the maglev train; a pull rod seat, which is connected to the other end of the pull rod tube; a screw, one end of which is connected to the pull rod seat; a traction seat, the other end of which passes through the traction seat and is slidably connected to it, the traction seat also being connected to the longitudinal beam of the maglev train; a longitudinal damping mechanism, comprising a rubber column and a disc spring, the rubber column being sleeved on the screw and having both ends abutting against the pull rod seat and the traction seat respectively to reduce the horizontal pressure transmitted from the traction seat to the pull rod seat, the disc spring being sleeved on the screw on the other side of the traction seat opposite to the rubber column to reduce the horizontal tension transmitted from the traction seat to the pull rod seat; and a vertical damping mechanism, comprising a spherical pad, the spherical pad being mounted on the traction seat, the other end of which passes through the spherical pad and is slidably connected to the traction seat to reduce the vertical impact force transmitted from the traction seat to the pull rod seat.

[0006] Furthermore, it also includes a pull rod head, a threaded seat, and a rubber joint. The threaded seat is connected to the end of the pull rod tube, the pull rod head is connected to the threaded seat, and the rubber joint is set on the pull rod head. The pull rod head is connected to the pull rod seat or the upper seat through the rubber joint.

[0007] Furthermore, the tie rod seat includes a base plate and a mounting base. The mounting base is set on the base plate, the screw is connected to the base plate, and the tie rod head is rotatably connected to the mounting base through a rubber joint.

[0008] Furthermore, the traction seat includes a connecting plate, an upper wing plate, and a lower wing plate. The connecting plate includes two opposing edges. The upper wing plate is disposed on one edge of the connecting plate and is located above the connecting plate. The lower wing plate is disposed on the other edge of the connecting plate and is located below the connecting plate. A spherical pad is installed in a mounting hole opened on the upper wing plate. A screw passes through the spherical pad and is slidably connected to the upper wing plate. The lower wing plate is connected to the longitudinal beam.

[0009] Furthermore, it also includes a transition sleeve, which is set inside the mounting hole, and a spherical pad is set on the transition sleeve. One end of the transition sleeve is connected to a disc spring.

[0010] Furthermore, the screw comprises multiple screws.

[0011] Furthermore, the base plate is provided with weight-reducing holes to reduce the weight of the tie rod seat.

[0012] Furthermore, the traction seat also includes stiffening plates to enhance its strength.

[0013] Furthermore, the screw is connected to the base plate by fixing bolts.

[0014] Another aspect of this disclosure provides a maglev train, including a seat and a longitudinal beam, as well as the aforementioned traction device for the maglev train.

[0015] According to the above technical solution, the present invention provides a traction device and a maglev train. The traction device reduces the impact force of the suspension frame on the carriage in the longitudinal and vertical directions through longitudinal and vertical vibration damping mechanisms, thereby further improving the comfort of the carriage and the smoothness and safety of the maglev train operation. The spherical pad prevents the screw and the traction seat from directly contacting each other, avoiding the problem of damage to the traction device caused by mutual friction or compression between the screw and the traction seat. The rubber joint plays a buffering and vibration isolation role for both longitudinal and lateral forces, thereby further improving the vibration damping effect of the traction device. By setting the axis direction of the mounting hole on the upper wing plate perpendicular to the axis direction of the through hole on the lower wing plate, the problem of damage caused by excessive shear force on the screw and the bolt in the through hole of the lower wing plate is avoided. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the traction device disclosed in an embodiment of the present invention;

[0018] Figure 2 This is a partial cross-sectional view of the traction device disclosed in an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the pull rod seat disclosed in an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the traction seat disclosed in an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of an existing traction device;

[0022] Figure 6 This is a schematic diagram of a traction device with buffer in existing technology.

[0023] Figure label:

[0024] 1. Slide table; 2. Upper seat; 3. Tie rod; 4. Lower seat; 5. Longitudinal beam; 6. Traction rod; 7. Support; 8. Guide rod; 9. First elastic buffer; 10. Mounting seat; 11. Second elastic buffer; 12. Rubber joint; 13. Tie rod head; 14. Locking nut; 15. Threaded seat; 16. Tie rod tube; 17. Tie rod seat; 18. Rubber column; 19. Traction seat; 20. Fixing nut; 21. Screw; 22. Spherical pad; 23. Transition sleeve; 24. Disc spring; 25. Mounting seat; 26. Base plate; 27. Upper wing plate; 28. Connecting plate; 29. ​​Lower wing plate; 30. Rib plate. Detailed Implementation

[0025] The embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this disclosure by way of example, but should not be used to limit the scope of this disclosure. This disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0026] These embodiments are provided to make the disclosure thorough and complete, and to fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0027] It should be noted that, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] Furthermore, the terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after the word, and do not exclude the possibility of encompassing other elements as well.

[0029] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure depending on the specific circumstances. When a particular device is described as being located between a first device and a second device, an intermediary device may or may not be present between the particular device and the first or second device.

[0030] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0031] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0032] As mentioned in the background section above, during the operation of a maglev train, the carriage is subjected to longitudinal and vertical impact forces from the suspension frame, thus affecting the comfort of the carriage. Therefore, the inventors of this application provide a traction device and a maglev train in one or more embodiments. The traction device, through longitudinal and vertical vibration damping mechanisms, reduces the longitudinal and vertical impact forces of the suspension frame on the carriage, thereby further improving the comfort of the carriage. It is believed that this can solve one or more problems in the prior art.

[0033] To address the aforementioned technical problems, one aspect of the present invention provides a traction device for a maglev train, such as... Figure 1 and Figure 2As shown, it includes: a pull rod tube 16, one end of which is connected to the upper seat of the maglev train; a pull rod seat 17, which is connected to the other end of the pull rod tube 16; a screw 21, one end of which is connected to the pull rod seat 17; a traction seat 19, the other end of which passes through the traction seat 19 and is slidably connected to it, and the traction seat 19 is also connected to the longitudinal beam of the maglev train; and a longitudinal vibration damping mechanism, which includes a rubber column 18 and a disc spring 24, the rubber column 18 being sleeved on the screw 21, and both ends being respectively connectable to the pull rod seat 17. The traction seat 19 abuts against the screw 21 on the other side of the traction seat 19 to reduce the horizontal pressure transmitted from the traction seat 19 to the pull rod seat 17. The disc spring 24 is sleeved on the screw 21 on the other side of the traction seat 19 opposite to the rubber column 18 to reduce the horizontal tension transmitted from the traction seat 19 to the pull rod seat 17. The vertical damping mechanism includes a spherical pad 22, which is mounted on the traction seat 19. The other end of the screw 21 passes through the spherical pad 22 and is slidably connected to the traction seat 19 to reduce the vertical impact force transmitted from the traction seat 19 to the pull rod seat 17.

[0034] Specifically, when the traction device is under pressure, the pull rod seat 17 moves closer to the traction seat 19, compressing the rubber column 18. The elastic deformation recovery force of the rubber column 18 provides vibration damping under pressure. When the traction device is under tension, the pull rod seat 17 moves away from the traction seat 19, compressing the disc spring. The elastic deformation recovery force of the disc spring provides vibration damping under pressure. The rubber column 18 and disc spring 24 provide vibration damping in the longitudinal direction. When the traction device is subjected to vertical force, the pull rod seat 17 rotates relative to the traction seat 19, and the vertical force of the traction device is released through the spherical pad 22, thus providing vibration damping in the vertical direction. At the same time, the spherical pad 22 prevents the screw 21 and the traction seat 19 from contacting each other under vertical force and avoids damage to the traction device due to mutual compression between the screw 21 and the traction seat 19 under longitudinal force or mutual friction between the screw 21 and the traction seat 19 under longitudinal force. Furthermore, the rubber column 18, disc spring, and spherical pad 22 must all have certain strength and elastic modulus to avoid damage or failure to perform vibration damping when under pressure.

[0035] Compared with the prior art, the traction device of the maglev train provided by the present invention reduces the impact force of the suspension frame on the carriage in the longitudinal and vertical directions through the longitudinal damping mechanism and the vertical damping mechanism, thereby further improving the comfort of the carriage; the spherical pad 22 prevents the screw 21 and the traction seat 19 from making direct contact, avoiding the problem of damage to the traction device caused by mutual friction or compression between the screw 21 and the traction seat 19.

[0036] In some embodiments, such as Figure 1As shown, it also includes a pull rod head 13, a threaded seat 15, and a rubber node 12. The threaded seat 15 is connected to the end of the pull rod tube 16, the pull rod head 13 is connected to the threaded seat 15, and the rubber node 12 is set on the pull rod head 13. The pull rod head 13 is connected to the pull rod seat 17 or the upper seat through the rubber node 12. Specifically, both ends of the pull rod tube 16 are connected to the threaded seats 15. The two threaded seats 15 are respectively provided with left-hand and right-hand threads, which are threadedly connected to the pull rod heads 13 at both ends, which can realize the length adjustment of the traction pull rod tube 16 and facilitate installation. After the length of the pull rod tube 16 is adjusted, it is fixed by the locking nuts 14 at both ends. The rubber node 12 is set in the pull rod head 13 to realize the movement and rotation requirements of the pull rod tube 16 relative to the pull rod seat 17. At the same time, the rubber node 12 plays a buffering and vibration isolation role for both longitudinal and lateral forces, thereby further improving the vibration reduction effect of the traction device.

[0037] In some embodiments, such as Figure 3 As shown, the pull rod seat 17 includes a base plate 26 and a mounting base 25. The mounting base 25 is disposed on the base plate 26, and the screw 21 is connected to the base plate 26. The pull rod head 13 is rotatably connected to the mounting base 25 through a rubber node 12. Specifically, the pull rod seat 17 also includes a pin and two mounting bases 25. Each mounting base 25 is provided with a threaded hole, and both ends of the pin are respectively installed in the threaded holes of the two mounting bases 25. The pull rod head 13 is rotatably connected to the pin through the rubber node 12. The connection between the pull rod seat 17, the pull rod tube 16, and the screw 21 is realized through the mounting base 25 and the base plate 26.

[0038] In some embodiments, such as Figure 4 As shown, the traction seat 19 includes a connecting plate 28, an upper wing plate 27, and a lower wing plate 29. The connecting plate 28 has two opposing edges. The upper wing plate 27 is disposed on one edge of the connecting plate 28 and is located above the connecting plate 28. The lower wing plate 29 is disposed on the other edge of the connecting plate 28 and is located below the connecting plate 28. A spherical pad 22 is installed in a mounting hole opened on the upper wing plate 27. A screw 21 passes through the spherical pad 22 and is slidably connected to the upper wing plate 27. The lower wing plate 29 is connected to the longitudinal beam. Specifically, the angles of the connecting plate 28, the upper wing plate 27, and the lower wing plate 29 can all be set to 90 degrees. The upper wing plate 27 has a mounting hole, and the spherical pad 22 is installed in the mounting hole. The screw 21 passes through the spherical pad 22 and is slidably connected to the upper wing plate 27. The lower wing plate 29 has a through hole, and a bolt passes through the through hole in the lower wing plate 29 and is connected to the longitudinal beam. The traction seat 19 is connected to the screw 21 and the longitudinal beam via the connecting plate 28, the upper wing plate 27, and the lower wing plate 29. Furthermore, since the axial direction of the mounting hole on the upper wing plate 27 is perpendicular to the axial direction of the through hole on the lower wing plate 29, the problem of the screw 21 and the bolts in the through hole on the lower wing plate 29 being damaged due to excessive shear force is avoided.

[0039] In some embodiments, such as Figure 2 As shown, it also includes a transition sleeve 23, which is disposed within the mounting hole. The spherical pad 22 is disposed on the transition sleeve 23, and one end of the transition sleeve 23 is connected to the disc spring 24. Specifically, the transition sleeve 23 is fixedly installed within the mounting hole, and the spherical pad 22 is fixed within the mounting hole by the interlocking of the threads on the inner wall of the transition sleeve 23 and the threads on the spherical surface of the spherical pad 22; in addition, one end of the disc spring 24 can be connected to the transition sleeve 23 via a flat washer.

[0040] In some embodiments, such as Figure 1-2 As shown, there are multiple screws 21. The multiple screws 21 ensure the connection strength between the tie rod seat 17 and the traction seat 19. Specifically, multiple mounting holes can be opened on the upper wing plate 27, and each mounting hole is provided with a spherical pad 22. The multiple screws 21 pass through the multiple spherical pads 22 and are slidably connected to the upper wing plate 27. Each of the multiple screws 21 is provided with a rubber post 18 and a disc spring 24.

[0041] In some embodiments, such as Figure 3 As shown, the base plate 26 is provided with weight-reducing holes to reduce the weight of the tie rod seat 17. The weight of the tie rod seat 17 can be reduced through the weight-reducing holes. Specifically, the size and number of weight-reducing holes are not limited, provided that the structural strength of the base plate 26 is guaranteed.

[0042] In some embodiments, such as Figure 4 As shown, the traction seat 19 also includes stiffening plates 30 to enhance its strength. The stiffening plates 30 ensure the structural strength of the traction seat 19. Furthermore, the stiffening plates 30 are connected to the upper flange 27, the connecting plate 28, and the lower flange 29. Specifically, one or more stiffening plates 30 may be provided.

[0043] In some embodiments, such as Figure 2 As shown, the screw 21 is connected to the base plate 26 by a fixing nut 20. The fixing nut 20 can fix the screw 21 to the base plate 26. Furthermore, a nut can be added to prevent the fixing nut 20 from loosening.

[0044] On the other hand, the present invention also provides a maglev train, including an upper seat and longitudinal beams, as well as the aforementioned traction device for the maglev train. Through the longitudinal and vertical vibration damping mechanisms of the traction device, vibration damping is achieved in both the longitudinal and vertical directions of the maglev train carriage, thereby further improving the comfort of the carriage and ensuring the stability and safety of the maglev train.

[0045] In summary, compared with the prior art, the traction device and maglev train provided by this invention reduce the impact force of the suspension frame on the carriage in the longitudinal and vertical directions through the longitudinal and vertical vibration damping mechanisms, thereby further improving the comfort of the carriage and the smoothness and safety of the maglev train operation; the spherical pad 22 prevents the screw 21 and the traction seat 19 from directly contacting each other, avoiding the problem of damage to the traction device caused by mutual friction or compression between the screw 21 and the traction seat 19; the rubber node 12 plays a buffering and vibration isolation role for both longitudinal and lateral forces, thereby further improving the vibration reduction effect of the traction device; and the axial direction of the mounting hole on the upper wing plate 27 is perpendicular to the axial direction of the through hole on the lower wing plate 29, avoiding the problem of the bolts in the through hole of the screw 21 and the lower wing plate 29 being damaged by excessive shear force.

[0046] The embodiments of this disclosure have now been described in detail. To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0047] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any manner.

Claims

1. A traction device for a maglev train, characterized in that, include: A pull rod tube (16), one end of which is connected to the upper seat of the maglev train; A pull rod seat (17) is connected to the other end of the pull rod tube (16); A screw (21), one end of which is connected to the pull rod seat (17); The traction seat (19) has the other end of the screw (21) passing through the traction seat (19) and slidably connected to the traction seat (19). The traction seat (19) is also connected to the longitudinal beam of the maglev train. The longitudinal vibration damping mechanism includes a rubber column (18) and a disc spring (24). The rubber column (18) is sleeved on the screw (21), and its two ends can respectively abut against the pull rod seat (17) and the traction seat (19) to reduce the horizontal pressure transmitted by the traction seat (19) to the pull rod seat (17). The disc spring (24) is sleeved on the screw (21) on the other side of the traction seat (19) opposite to the rubber column (18) to reduce the horizontal tension transmitted by the traction seat (19) to the pull rod seat (17). and A vertical damping mechanism includes a spherical pad (22) mounted on the traction seat (19), and the other end of the screw (21) passes through the spherical pad (22) and is slidably connected to the traction seat (19) to reduce the vertical impact force transmitted by the traction seat (19) to the pull rod seat (17).

2. The traction device of the maglev train according to claim 1, characterized in that, It also includes a pull rod head (13), a threaded seat (15) and a rubber node (12). The threaded seat (15) is connected to the end of the pull rod tube (16). The pull rod head (13) is connected to the threaded seat (15). The rubber node (12) is disposed on the pull rod head (13). The pull rod head (13) is connected to the pull rod seat (17) or the upper seat through the rubber node (12).

3. The traction device of the maglev train according to claim 2, characterized in that, The pull rod seat (17) includes a base plate (26) and a mounting seat (25). The mounting seat (25) is disposed on the base plate (26). The screw (21) is connected to the base plate (26). The pull rod head (13) is rotatably connected to the mounting seat (25) through the rubber node (12).

4. The traction device of the maglev train according to claim 3, characterized in that, The traction seat (19) includes a connecting plate (28), an upper wing plate (27), and a lower wing plate (29). The connecting plate (28) includes two opposing edges. The upper wing plate (27) is disposed on one edge of the connecting plate (28) and located above the connecting plate (28). The lower wing plate (29) is disposed on the other edge of the connecting plate (28) and located below the connecting plate (28). The spherical pad (22) is installed in a mounting hole opened on the upper wing plate (27). The screw (21) passes through the spherical pad (22) and is slidably connected to the upper wing plate (27). The lower wing plate (29) is connected to the longitudinal beam.

5. The traction device of the maglev train according to claim 4, characterized in that, It also includes a transition sleeve (23), which is disposed in the mounting hole, and the spherical pad (22) is disposed on the transition sleeve (23). One end of the transition sleeve (23) is connected to the disc spring (24).

6. The traction device of the maglev train according to claim 5, characterized in that, The screw (21) includes multiple screws.

7. The traction device of the maglev train according to claim 3, characterized in that, The base plate (26) is provided with weight-reducing holes to reduce the weight of the tie rod seat (17).

8. The traction device of the maglev train according to claim 4, characterized in that, The traction seat (19) also includes stiffening plates (30) for strengthening the traction seat (19).

9. The traction device of the maglev train according to claim 3, characterized in that, The screw (21) is connected to the base plate (26) by a fixing nut (20).

10. A maglev train, characterized in that, It includes a seat and longitudinal beams, as well as the traction device of the maglev train according to any one of claims 1-9.

Images