Coupler connection system and rail vehicle

Abstract

This invention relates to the field of railway and highway vehicle technology, providing a coupler connection system and a rail vehicle. The coupler connection system includes: a support for connecting to the train body; a coupler assembly rotatably connected to the support via a rotating shaft, wherein the rotating shaft of the coupler assembly extends along the height direction of the train; and a drive device mounted on the support and connected to the coupler assembly, the drive device driving the coupler assembly to rotate, thereby adjusting the horizontal orientation of the coupler assembly. The coupler connection system provided by this invention, by driving the coupler assembly to rotate via a drive device to adjust the horizontal orientation of the coupler assembly, provides a basis for remote and automatic control of the coupler assembly, eliminating the need for manual adjustment of the coupler assembly between trains by workers. This solves or improves the shortcomings of inconvenient coupler adjustment between trains when the distance between two trains is small.

Description

Technical Field

[0001] This invention relates to the field of railway and highway vehicle technology, and in particular to a coupler connection system and a rail vehicle. Background Technology

[0002] In actual operation of rail transit vehicles, environmental factors or train malfunctions may cause trains to become unable to continue running, requiring them to wait for other trains to provide assistance. During the rescue process, the couplers of the rescue train and the disabled train need to be coupled. Existing couplers are usually rotatably connected to the train body to facilitate adjustment of the coupler's horizontal azimuth angle. The train also has a centering mechanism to ensure that the coupler remains on the centerline under no external force. Therefore, during coupling, the horizontal azimuth angle of the coupler often needs to be manually adjusted to ensure proper coupling between the two trains.

[0003] However, the location where the trains are waiting for rescue coupling may be in narrow and curved sections of the track, such as vertical curves with small radii, circular curves, tangential curves, S-curves, and tunnels with narrow spaces. During the coupling process, the distance between the two trains is small, making it inconvenient for workers to adjust the couplers between the trains. Summary of the Invention

[0004] This invention provides a coupler connection system and a rail vehicle to solve or improve the shortcomings of the prior art where the distance between two trains is small, making it inconvenient for workers to adjust the coupler between the trains, and to achieve the effect of eliminating the need for workers to perform coupling operations between trains.

[0005] This invention provides a coupler connection system, comprising:

[0006] Support, used for connecting to the train body;

[0007] The coupler assembly is rotatably connected to the support via a pivot, and the pivot of the coupler assembly extends along the height direction of the train.

[0008] A drive unit is mounted on the support and connected to the coupler assembly. The drive unit is used to drive the coupler assembly to rotate in order to adjust the horizontal orientation of the coupler assembly.

[0009] According to a coupler connection system provided by the present invention, the driving device includes a power unit and a transmission mechanism, the power unit is mounted on the support, and the power unit is connected to the coupler assembly through the transmission mechanism.

[0010] According to a coupler connection system provided by the present invention, the transmission mechanism includes a sliding block and a pin disposed on the sliding block;

[0011] The coupler assembly is provided with a slide groove, the length direction of which extends radially along the axis of rotation of the coupler assembly. The pin extends slidably into the slide groove along the length direction of the slide groove. The sliding block is slidably connected to the support, and the movement trajectory of the sliding block is set at an angle to the slide groove. The power unit is connected to the sliding block and is used to drive the sliding block to move.

[0012] According to a coupler connection system provided by the present invention, the sliding block is configured as a rack, the transmission mechanism further includes a drive gear meshing with the sliding block, the power unit includes a motor, and the drive gear is connected to the output shaft of the power unit;

[0013] Alternatively, the power unit may include a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder, and the drive rod of the power unit may be connected to the sliding block.

[0014] According to a coupler connection system provided by the present invention, the power unit includes a motor, the transmission mechanism includes a driving gear and a driven gear meshing with the driving gear, the driven gear is connected to the rotating shaft of the coupler assembly, and the driving gear is connected to the output shaft of the power unit.

[0015] According to the coupler connection system provided by the present invention, it further includes:

[0016] A distance measuring device is provided on the coupler assembly, and the distance measuring device is used to detect the distance value between the coupler assembly and the coupler assembly to be coupled.

[0017] An image acquisition device is provided on the coupler assembly, and the image acquisition device is used to acquire image information of the coupler assembly to be coupled.

[0018] The control unit is connected to the ranging device, the image acquisition device and the driving device respectively. Based on the distance value and the image information, the control unit controls the driving device to drive the coupler assembly to rotate.

[0019] According to a coupler connection system provided by the present invention, the control unit controls the train speed based on the distance value.

[0020] According to the coupler connection system provided by the present invention, a display device is further included, which is connected to the control unit and is used to display the image information.

[0021] According to a coupler connection system provided by the present invention, the coupler assembly includes a coupler, a mounting base, an elastic block, and an air spring;

[0022] The mounting base is rotatably connected to the support, the coupler is connected to the mounting base via the elastic block, the air spring is connected to the mounting base and supported at the bottom of the coupler, and the air spring is used to adjust the vertical orientation of the coupler.

[0023] The present invention also provides a rail vehicle including the coupler connection system described above.

[0024] The coupler connection system provided by this invention connects to the train body via a support, enabling the coupler connection system to be installed on the train. By driving the coupler assembly to rotate through a drive device, the horizontal orientation of the coupler assembly can be adjusted, allowing the coupler assembly to be aligned with the coupler assembly to be coupled, thus facilitating the docking of the coupler assembly with the coupler assembly to be coupled.

[0025] With this configuration, the coupler connection system provided by the present invention drives the coupler assembly to rotate through the drive device to adjust the horizontal orientation of the coupler assembly, providing a basis for remote and automatic control of the coupler assembly. This eliminates the need for workers to manually adjust the coupler assembly between trains, solving or improving the defect that it is inconvenient for workers to adjust the coupler between trains when the distance between two trains is small.

[0026] The rail vehicle provided by the present invention incorporates the coupler connection system provided by the present invention, and therefore simultaneously incorporates all the advantages of the coupler connection system described above. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in this invention 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 some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of the first coupler connection system provided in some embodiments of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of the second coupler connection system provided in some embodiments of the present invention;

[0030] Figure 3 This is a structural schematic diagram of a third coupler connection system provided in some embodiments of the present invention;

[0031] Figure 4 This is a schematic diagram of the structure of the sliding block and the coupler provided in some embodiments of the present invention.

[0032] Figure 5This is a schematic diagram of the cooperation structure between the air spring and the coupler provided in some embodiments of the present invention;

[0033] Figure 6 This is a schematic diagram of the connecting surface of the coupler assembly provided in some embodiments of the present invention;

[0034] Figure 7 This is a schematic diagram of the control system of the coupler connection system provided in some embodiments of the present invention.

[0035] Figure label:

[0036] 1. Support; 2. Shaft; 3. Power unit; 4. Sliding block; 5. Pin; 6. Slide groove; 7. Drive gear; 8. Driving gear; 9. Driven gear; 10. Distance measuring device; 11. Image acquisition device; 12. Control unit; 13. Display device; 14. Coupler; 15. Mounting base; 16. Elastic block; 17. Air spring; 18. Support plate; 19. Screw; 20. Adjusting nut; 21. Operating handle; 22. Fixing plate; 23. Air duct; 24. Air source. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0038] The following is combined with Figures 1-7 The coupler connection system provided in the embodiments of the present invention is described.

[0039] Specifically, the coupler connection system includes a support 1, a coupler assembly, and a drive unit.

[0040] The support 1 is used to connect with the train body. For example, the support 1 can be connected to the train body by welding or threaded fasteners.

[0041] The coupler assembly is rotatably connected to the support 1 via a pivot 2, and the pivot 2 of the coupler assembly extends along the height direction of the train to allow for adjustment of the horizontal orientation of the coupler assembly. (Reference) Figures 1-3 As shown, optionally, the upper and lower sides of the coupler assembly are fixedly connected with rotating shafts 2, and both rotating shafts 2 of the coupler assembly are rotatably connected to the support 1.

[0042] The drive unit is mounted on the support 1 and connected to the coupler assembly. The drive unit is used to drive the coupler assembly to rotate around the axis of the rotating shaft 2 in order to adjust the horizontal orientation of the coupler assembly.

[0043] The coupler connection system provided in this embodiment of the invention is connected to the train body via a support 1, enabling the coupler connection system to be installed on the train. By driving the coupler assembly to rotate through a drive device, the horizontal orientation of the coupler assembly can be adjusted, allowing the coupler assembly to be aligned with the coupler assembly to be coupled, thus facilitating the docking of the coupler assembly with the coupler assembly to be coupled.

[0044] With this configuration, the coupler connection system provided in this embodiment of the invention drives the coupler assembly to rotate via a drive device to adjust the horizontal orientation of the coupler assembly, providing a basis for remote and automatic control of the coupler assembly. This eliminates the need for workers to manually adjust the coupler assembly between trains, solving or improving the defect that it is inconvenient for workers to adjust the coupler 14 between trains when the distance between two trains is small.

[0045] In some embodiments provided by the present invention, the coupler assembly includes a coupler 14, a mounting base 15, and an elastic block 16.

[0046] The mounting base 15 is rotatably connected to the support 1, meaning the rotating shaft 2 is mounted on the mounting base 15. The coupler 14 is connected to the mounting base 15 via an elastic block 16. This arrangement allows the elastic block 16 to buffer the coupler 14 during impact, absorbing the impact.

[0047] Furthermore, the coupler assembly also includes an air spring 17. The air spring 17 is connected to the mounting base 15 and is supported on the bottom of the coupler 14. The air spring 17 is used to adjust the vertical orientation of the coupler 14.

[0048] Since the coupler 14 is connected to the mounting base 15 through the elastic block 16, the coupler 14 can swing to a certain extent in the vertical range under the elastic action of the elastic block 16. The orientation of the coupler 14 in the vertical direction can be adjusted by inflating the air spring 17 and changing the stiffness of the air spring 17.

[0049] With this configuration, during the coupling process between the coupler assembly and the coupler assembly to be coupled, the air source 24 can inflate the air spring 17 to adjust the vertical orientation of the coupler assembly, reduce the vertical positional error between the coupler assembly and the coupler assembly to be coupled, and ensure that the coupler assembly and the coupler assembly to be coupled are aligned in the vertical direction, thereby increasing the probability of successful coupling of the coupler assembly.

[0050] In addition, due to the damping effect of the air spring 17, the air spring 17 can absorb the vertical impact of the coupler assembly during the coupler collision process and reduce the vertical swing impact of the coupler assembly.

[0051] Furthermore, the coupler connection system also includes an air source 24 connected to the air spring 17, which is used to inflate the air spring 17. Optionally, the air source 24 can be an air compressor or a pressure tank assembly.

[0052] refer to Figure 5 As shown, optionally, the coupler assembly also includes a support plate 18, screws 19, and adjusting nuts 20. The screws 19 are provided as a pair, each connected to the mounting base 15. The support plate 18 has through holes for the pair of screws 19 to pass through, and the pair of screws 19 pass through the support plate 18 and connect to the corresponding adjusting nuts 20. The support plate 18 is located below the coupler 14, and the air spring 17 is mounted on the support plate 18.

[0053] By adjusting the position of the adjusting nut 20 on the screw 19, the distance between the support plate 18 and the coupler 14 can be adjusted so that the air spring 17 can make normal contact with the coupler 14 and drive the coupler 14 to deflect in the vertical direction. In addition, it can also keep the air spring 17 at a certain degree of compression under normal conditions to ensure the buffering effect of the air spring 17 on the coupler 14.

[0054] refer to Figure 3 As shown, optionally, the coupler assembly includes a pair of fixing plates 22, each fixing plate 22 being an arc-shaped plate. The pair of fixing plates 22 are interlocked and connected by fasteners, and the inner wall of the fixing plates 22 is provided with a slot. The coupler 14 extends into the pair of fixing plates 22, and the portion of the coupler 14 extending into the pair of fixing plates 22 is provided with a positioning groove. One end of the elastic block 16 extends into the positioning groove, and the other end extends into the slot. The pair of fixing plates 22 are connected to the mounting base 15 by fasteners. During the collision of the coupler 14, the elastic block 16 is deformed by shearing action between the slot of the fixing plate 22 and the positioning groove of the coupler 14, thereby converting the kinetic energy of the coupler 14 into potential energy and buffering the coupler 14.

[0055] In some embodiments provided by the present invention, the driving device includes a power unit 3 and a transmission mechanism. The power unit 3 is mounted on the support 1, and the power unit 3 is connected to the coupler assembly through the transmission mechanism, that is, the transmission mechanism can transmit the power provided by the power unit 3 to the coupler assembly to drive the coupler assembly to rotate.

[0056] This configuration allows for more flexible installation of the power unit 3 through the transition and transmission mechanism. Furthermore, the power provided by the power unit 3 is converted into a form that can drive the coupler assembly to rotate through the transmission mechanism, making the configuration of the power unit 3 more flexible.

[0057] refer to Figure 1 , Figure 2 and Figure 4As shown, in some embodiments provided by the present invention, the transmission mechanism includes a sliding block 4 and a pin 5 disposed on the sliding block 4.

[0058] The coupler assembly is provided with a slide groove 6, the length of which extends radially along the shaft 2 of the coupler assembly. A pin 5 extends slidably into the slide groove 6 along its length. A sliding block 4 is slidably connected to a support 1, and the movement trajectory of the sliding block 4 is set at an angle to the slide groove 6. A power unit 3 is connected to the sliding block 4 and is used to drive the sliding block 4 to move.

[0059] refer to Figure 4 As shown, when it is necessary to adjust the horizontal orientation of the coupler assembly, the sliding block 4 can be moved by the power unit 3, the sliding block 4 can be moved by the pin 5, the pin 5 and the slide groove 6 can slide relative to each other, the pin 5 and the side wall of the slide groove 6 can interact, and the coupler assembly can be deflected in the horizontal direction through the slide groove 6.

[0060] Optionally, refer to Figure 2 As shown, the slide groove 6 is provided on the coupler 14. For example, the slide groove 6 can be provided at the top or bottom of the coupler 14. With this arrangement, the coupler 14 can be directly driven to rotate via the sliding block 4 and the pin 5, allowing for more accurate adjustment of the angle of the coupler 14. Furthermore, it should be noted that because the pin 5 and the slide groove 6 have a certain overlap range, even if the coupler 14 swings vertically under the action of the air spring 17, it will not affect the fit between the pin 5 and the sliding pin, thus ensuring that the vertical and horizontal adjustments of the coupler 14 do not interfere with each other.

[0061] Of course, the groove 6 is not limited to being installed on the coupler 14, for example, see reference Figure 3 As shown, the slide groove 6 is mounted on the mounting base 15. That is, the sliding block 4 drives the mounting base 15 to rotate via the pin 5, and the mounting base 15 drives the coupler 14 to rotate.

[0062] In some embodiments provided by the present invention, the sliding block 4 is configured as a rack. The transmission mechanism also includes a drive gear 7 meshing with the sliding block 4. The power unit 3 includes a motor, which includes, but is not limited to, a geared motor. The drive gear 7 is connected to the output shaft of the power unit 3. For example, the drive gear 7 is mounted on the output shaft of the power unit 3.

[0063] During operation, the power unit 3 drives the drive gear 7 to rotate, and the drive gear 7 meshes with the sliding block 4 to drive the sliding block 4 to translate. The sliding block 4 drives the coupler assembly to rotate via the pin 5. By driving the sliding block 4 to reciprocate through the motor and drive gear 7, the displacement of the sliding block 4 can be adjusted relatively precisely, thereby accurately adjusting the horizontal orientation of the coupler 14 so that the coupler 14 can be docked with the coupler 14 to be coupled.

[0064] Of course, the sliding block 4 is not limited to being driven by a motor and drive gear 7. For example, in other embodiments provided by the present invention, the power unit 3 includes a cylinder, a hydraulic cylinder, or an electric cylinder. The drive rod of the power unit 3 is connected to the sliding block 4 to drive the sliding block 4 to reciprocate. With this configuration, the power unit 3 has a simple structure and low cost. For example, the cylinder body of the power unit 3 is hinged to the support 1, and the drive rod of the power unit 3 is hinged to the sliding block 4.

[0065] Furthermore, taking a cylinder as an example, the power unit 3 includes a pair of cylinders. The cylinder bodies of the pair of cylinders are respectively located at both ends of the moving trajectory of the sliding block 4, and the cylinder bodies of both cylinders are connected to the support 1. The piston rods of both cylinders face the sliding block 4, and the piston rods of both cylinders are respectively connected to both ends of the sliding block 4. The arrangement of hydraulic cylinders and electric cylinders can be referred to that of cylinders, and will not be described in detail here.

[0066] Of course, the transmission mechanism is not limited to the form of the sliding block 4 described above; for example, refer to... Figure 1 As shown, in other embodiments provided by the present invention, the transmission mechanism includes a driving gear 8 and a driven gear 9 meshing with the rotating gear. The power unit 3 includes a motor, which includes, but is not limited to, a reduction electrode. The driven gear 9 is connected to the rotating shaft 2 of the coupler assembly; specifically, the driven gear 9 and the rotating shaft 2 of the coupler assembly are fixedly connected relative to each other. The driving gear 8 is connected to the output shaft of the power unit 3; for example, the driving gear 8 is mounted on the output shaft of the power unit 3.

[0067] When it is necessary to adjust the horizontal orientation of the coupler assembly, the power unit 3 drives the drive gear 8 to rotate, the drive gear 8 drives the driven gear 9 to rotate, and the driven gear 9 drives the coupler assembly to rotate through the rotating shaft 2.

[0068] Optionally, refer to Figure 1 The driving gear 8 and driven gear 9 are both set as bevel gears or helical gears so that the output shaft of the power unit 3 is set perpendicular to the rotating shaft 2 of the coupler assembly. This allows the motor of the power unit 3 to be arranged in the horizontal direction, thereby reducing the difficulty of motor installation.

[0069] refer to Figure 6 and Figure 7 As shown, in some embodiments provided by the present invention, the coupler connection system further includes a ranging device 10, an image acquisition device 11, and a control unit 12.

[0070] The distance measuring device 10 is disposed on the coupler assembly and is used to detect the distance between the coupler assembly and the coupler assembly to be coupled. Optionally, the distance measuring device 10 can be a lidar or a laser rangefinder.

[0071] An image acquisition device 11 is disposed on the coupler assembly, and the image acquisition device 11 is used to acquire image information of the coupler assembly to be coupled. Optionally, the image acquisition device 11 can be a camera.

[0072] The control unit 12 is connected to the ranging device 10, the image acquisition device 11 and the driving device respectively. Based on the distance value and image information, the control unit 12 controls the driving device to drive the coupler assembly to rotate.

[0073] In this embodiment, when the coupler connection system is running, the distance value between the coupler assembly and the coupler assembly to be coupled is obtained by the ranging device 10, and the image information of the coupler assembly to be coupled is obtained by the image acquisition device 11. The control unit 12 analyzes whether the coupler assembly to be coupled is in the coupling area of ​​the coupler assembly based on the distance value and the image information. If the coupler assembly to be coupled is not in the coupling area of ​​the coupler assembly, the orientation of the coupler assembly is adjusted so that the coupler assembly to be coupled enters the coupling area of ​​the coupler assembly.

[0074] With this configuration, the control unit 12 can automatically adjust the orientation of the coupler assembly based on the distance value obtained by the ranging device 10 and the image information obtained by the image acquisition device 11, so that the coupler assembly can smoothly connect with the coupler assembly to be coupled, reducing the problem of coupler collision failure caused by untimely transmission of position information or inaccurate judgment of the direction of the coupler assembly.

[0075] Optionally, a reference point is established on the coupler assembly to be coupled. The focal length of the image acquisition device 11 is known. Given a fixed distance, as the relative position of the coupler assembly and the coupler assembly to be coupled changes, the position of the reference point in the image acquired by the image acquisition device 11 also changes. Based on this, a set of reference point locations is obtained when the coupler assembly to be coupled can be normally coupled with the coupler assembly. The area formed by this set of locations is the coupling area. Finally, the coupling area corresponding to each distance value is obtained. For example, the coupling area can be determined experimentally.

[0076] Furthermore, during the adjustment of the coupler assembly, the control unit 12 determines the coupling area corresponding to the current distance value based on the image information and distance value, and overlaps the coupling area with the image. Then, it determines whether the reference point falls within the coupling area. If the reference point falls within the coupling area, the position of the coupler assembly is no longer adjusted. If the reference point does not fall within the coupling area, the coupler assembly is adjusted until the reference point falls within the coupling area.

[0077] Optionally, the image acquisition device 11 on the coupler assembly to be coupled can be used as a reference point.

[0078] Optionally, the control unit 12 is also connected to the air source 24 of the airbag. Based on the distance value and image information, the control unit 12 controls the air source 24 to inflate the airbag to adjust the vertical orientation of the coupler assembly, so that the height position of the coupler assembly and the height position of the coupler assembly to be coupled are within the allowable error range, thereby increasing the probability of successful coupling.

[0079] In some embodiments provided by the present invention, the control unit 12 controls the train speed based on a distance value. Optionally, when the control unit 12 determines that the distance value is less than a preset distance threshold, it limits the train speed to reduce the problem of excessively high coupling speed and improve the stability of coupling.

[0080] In some embodiments of the present invention, the coupler connection system further includes a display device 13, which is connected to the control unit 12 and is used to display image information. The display device 13 displays the image information acquired by the image acquisition device 11, allowing the operator to monitor the coupling process of the coupler assembly in real time and promptly address any problems that arise during coupling.

[0081] Furthermore, the coupler connection system also includes a control handle 21, which is connected to a control unit 12. Based on signals from the control handle 21, the control unit 12 controls the drive unit to drive the coupler assembly to adjust its horizontal orientation, or, based on signals from the control handle 21, controls the air source 24 of the airbag to inflate the airbag to adjust its vertical orientation. The operator can observe the angular position of the coupler assembly through the display device 13 and manually adjust its angle using the control handle 21. Alternatively, the operator can observe the coupler assembly from beside the train and adjust its angle using the control handle 21.

[0082] With this configuration, when it is inconvenient to automatically adjust the coupler assembly, the operator can manually control the coupler assembly using the control handle 21, making the coupler connection system more flexible and applicable to a wider range of scenarios.

[0083] It should be noted that the types of drive devices and air sources 24 have been described above. For drive devices, the control handle 21 controls the start, stop, forward and reverse rotation of the motor, or the extension and retraction of the cylinder or hydraulic cylinder. For air sources 24, the control handle 21 controls the opening and closing of valves.

[0084] In some embodiments provided by the present invention, the coupler assembly is also provided with an air duct 23. After the coupler assembly is connected with the coupler assembly to be coupled, the air ducts 23 of the two trains are also connected to each other. Thus, after the coupler assemblies are connected, there is no need to manually connect the air ducts 23. Similarly, after the coupler assembly is disconnected, there is no need to manually disconnect the air ducts 23, making the operation more convenient.

[0085] This invention also provides a rail vehicle.

[0086] Specifically, the rail vehicle includes the coupler connection system described above.

[0087] It should be noted that rail vehicles include a coupler connection system, which also includes all the advantages of the coupler connection system mentioned above, and will not be elaborated here.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A coupler connection system, characterized in that, include: Support (1), used for connection with the train body; The coupler assembly is rotatably connected to the support (1) via a rotating shaft (2), and the rotating shaft (2) of the coupler assembly extends along the height direction of the train. A drive device is installed on the support (1) and connected to the coupler assembly. The drive device is used to drive the coupler assembly to rotate so as to adjust the horizontal orientation of the coupler assembly. The drive device includes a power unit (3) and a transmission mechanism. The power unit (3) is mounted on the support (1) and is connected to the coupler assembly through the transmission mechanism. The transmission mechanism includes a sliding block (4) and a pin (5) disposed on the sliding block (4); The coupler assembly is provided with a groove (6), the length direction of which extends radially along the shaft (2) of the coupler assembly, the pin (5) extends slidably into the groove (6) along the length direction of the groove (6), the sliding block (4) is slidably connected to the support (1), and the movement trajectory of the sliding block (4) is set at an angle to the groove (6), the power unit (3) is connected to the sliding block (4) and is used to drive the sliding block (4) to move; The sliding block (4) is configured as a rack, and the transmission mechanism further includes a drive gear (7) meshing with the sliding block (4). The power unit (3) includes a motor, and the drive gear (7) is connected to the output shaft of the power unit (3).

2. The coupler connection system according to claim 1, characterized in that, The power unit (3) includes a motor, and the transmission mechanism includes a drive gear (8) and a driven gear (9) meshing with the drive gear (8). The driven gear (9) is connected to the shaft (2) of the coupler assembly, and the drive gear (8) is connected to the output shaft of the power unit (3).

3. The coupler connection system according to claim 1 or 2, characterized in that, Also includes: A distance measuring device (10) is provided on the coupler assembly. The distance measuring device (10) is used to detect the distance between the coupler assembly and the coupler assembly to be coupled. An image acquisition device (11) is provided on the coupler assembly, and the image acquisition device (11) is used to acquire image information of the coupler assembly to be coupled. The control unit (12) is connected to the ranging device (10), the image acquisition device (11) and the driving device respectively. Based on the distance value and the image information, the control unit (12) controls the driving device to drive the coupler assembly to rotate.

4. The coupler connection system according to claim 3, characterized in that, The control unit (12) controls the speed of the train based on the distance value.

5. The coupler connection system according to claim 3, characterized in that, It also includes a display device (13), which is connected to the control unit (12) and is used to display the image information.

6. The coupler connection system according to claim 1 or 2, characterized in that, The coupler assembly includes a coupler (14), a mounting base (15), an elastic block (16), and an air spring (17); The mounting base (15) is rotatably connected to the support (1), the hook (14) is connected to the mounting base (15) through the elastic block (16), the air spring (17) is connected to the mounting base (15) and supported at the bottom of the hook (14), and the air spring (17) is used to adjust the vertical orientation of the hook (14).

7. A rail vehicle, characterized in that, Includes the coupler connection system as described in any one of claims 1-6.

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