Close-lock coupler buffer device

Abstract

The utility model discloses a tight-lock coupler buffer device which comprises a buffer seat box body, a buffer cavity is formed in the buffer seat box body and used for containing a buffer seat, a channel communicated with the buffer cavity is formed in one end of the buffer seat box body, and the buffer seat box body and the buffer cavity are communicated through the channel. The tail portion of the tight-lock coupler penetrates through the channel to be connected with the buffering seat, the other end of a box body of the buffering seat is open and connected to a vehicle body through a flange plate, the buffering seat comprises a connecting portion and a buffering portion, the connecting portion is connected with the tail portion of the tight-lock coupler, and a traction end is arranged on the side, close to the tight-lock coupler, of the buffering portion. The buffer end is arranged at the end, away from the tight-lock coupler, of the buffer box body, the traction end is used for buffering traction force received by the tight-lock coupler and transmitting the traction force to a vehicle body along the buffer box body, and the buffer end is used for buffering pressure received by the tight-lock coupler and transmitting the pressure to the vehicle body along the flange plate. According to the utility model, the safety and comfort of passengers are improved.

Description

TECHNICAL FIELD

[0001] The application relates to a tight coupling buffer device, and belongs to the technical field of car coupler buffers. BACKGROUND

[0002] As a core component in the railway vehicle coupling system, the performance of the tight coupling buffer device is directly related to the safety and stability of train operation. However, with the continuous progress of railway technology and the continuous improvement of train speed, although other key components of speed-up passenger trains have made significant development, the improvement of the car coupler buffer device has been relatively lagging behind.

[0003] At present, the buffer devices used in most tight couplings mainly rely on materials such as cement or elastomers. Although these materials exhibit good performance in terms of buffer capacity, they can effectively absorb impact energy during train operation, but the high cost is a problem that cannot be ignored. In addition, due to the structural limitations of these buffer devices, they often occupy a relatively large space of the coupler as a whole, which not only limits the design flexibility of the coupler, but also makes it difficult for such tight couplings to meet the operation requirements of small curve radius lines.

[0004] More troublesome is that those coupler buffer devices designed for small curve radius lines, although they can adapt to the curvature of the line to a certain extent, they can usually only withstand the pressure transmitted by the coupler, but cannot effectively buffer the traction force. This means that during the start or acceleration of the train, these buffer devices may not provide sufficient protection, thereby increasing the risk of damage to train components. CONTENT OF THE INVENTION

[0005] According to one aspect of the application, a tight coupling buffer device is provided, which can buffer both pressure and traction force, providing excellent buffering effect and improving passenger safety and comfort.

[0006] A tight coupling buffer device, characterized in that it comprises:

[0007] A buffer seat box body is provided with a buffer cavity inside, the buffer cavity is used to accommodate a buffer seat, one end of the buffer seat box body is provided with a passage through the buffer cavity, the tail of the tight coupling passes through the passage and is connected with the buffer seat, the other end of the buffer seat box body is open and connected to the car body through a flange plate;

[0008] The buffer seat comprises a connecting part and a buffer part, the connecting part is connected with the tail part of the tight coupling, the buffer part is provided with a traction end near one side of the tight coupling and a buffer end away from the tight coupling, the traction end is used for buffering the traction force received by the tight coupling and transmitting the traction force along the buffer box to the vehicle body, and the buffer end is used for buffering the pressure received by the tight coupling and transmitting the pressure along the flange plate to the vehicle body.

[0009] Further, the buffer part comprises a rectangular seat, side columns extending to the flange plate are arranged around the rectangular seat, a containing groove is formed in the center of the side columns, and a compression buffer block composition is installed in the containing groove, one end of the compression buffer block composition is connected with the rectangular seat, and the other end of the compression buffer block composition is connected with the flange plate.

[0010] Two outwardly extending mounting ears are symmetrically arranged on the two sides of the rectangular seat, the mounting ears are fixed on the side walls of the side columns and close to one end of the flange plate, a traction buffer block composition is mounted on one side of the mounting ear, a buffer spring is mounted on the other side of the mounting ear, the traction buffer block composition is located close to the tight coupling, the buffer spring is located close to the flange plate, one end of the traction buffer block composition is connected with one side of the mounting ear, the other end of the traction buffer block composition is connected with the buffer seat box, one end of the buffer spring is connected with the other side of the mounting ear, and the other end of the buffer spring is connected with the flange plate.

[0011] Further, the connecting part comprises a connecting ear arranged on the rectangular seat, and a mounting hole is arranged on the connecting ear, the mounting hole is connected with the hook tail of the tight coupling through a hook tail pin.

[0012] Further, the connecting ear is two, and is located on the two sides of the tight coupling.

[0013] Further, the hook tail end of the tight coupling is connected with the rectangular seat through a spring.

[0014] The application can produce beneficial effects, including:

[0015] The tight coupling buffer device provided by the application has a buffer seat, the buffer seat has a buffer end and a traction end, the buffer end and the traction end are reasonably distributed in a limited space, can buffer pressure and can buffer traction force, so that the vehicle is more stable during operation, and the safety and comfort of passengers are improved; meanwhile, the buffer structure has a limited overall space, is suitable for short-distance tight couplings, and has good passability for small-radius railways. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 Figure 1 is a schematic diagram of the overall structure of a close-coupled coupler buffer device according to an embodiment of the present application;

[0017] Fig. 2 Figure 2 is a sectional view of a close-coupled coupler buffer device according to an embodiment of the present application;

[0018] Fig. 3 Figure 3 is a schematic diagram of the buffer seat structure of a close-coupled coupler buffer device according to an embodiment of the present application;

[0019] Parts and reference numeral list: 1 - close-coupled coupler; 2 - buffer seat box; 3 - buffer cavity; 4 - buffer seat; 5 - flange plate; 6 - rectangular seat; 7 - side rail; 8 - containing groove; 9 - compression buffer block assembly; 10 - mounting ear; 11 - traction buffer block assembly; 12 - buffer spring; 13 - connecting ear; 14 - coupler tail pin; 15 - spring. DETAILED DESCRIPTION

[0020] The present application will be described in detail below with reference to examples, but the present application is not limited to these examples.

[0021] Reference is made to Figs. 1-3 A close-coupled coupler buffer device, characterized in that it comprises:

[0022] A buffer seat box 2 is provided with a buffer cavity 3 inside, the buffer cavity 3 is used to contain a buffer seat 4, one end of the buffer seat box 2 is provided with a passage through the buffer cavity 3, the tail of the close-coupled coupler 1 passes through the passage and is connected with the buffer seat 2, the other end of the buffer seat box 2 is open and is connected to the vehicle body through a flange plate 5;

[0023] The buffer seat 4 comprises a connecting part and a buffer part, the connecting part is connected with the tail of the close-coupled coupler 1, the buffer part is provided with a traction end near one side of the close-coupled coupler 1 and a buffer end away from the close-coupled coupler 1, the traction end is used to buffer the traction force received by the close-coupled coupler 1 and transmit the traction force along the buffer seat box 2 to the vehicle body, the buffer end is used to buffer the pressure received by the close-coupled coupler 1 and transmit the pressure along the flange plate 5 to the vehicle body.

[0024] Specifically, the buffer seat box is the main structure of the entire buffer device, and a buffer cavity is designed inside. The main function of this cavity is to accommodate the buffer seat, providing a stable space for the buffering process. The buffer seat box is designed very cleverly, with a channel at one end that connects with the buffer cavity. The tail of the tight coupling hook connects with the buffer seat through this channel, ensuring the tight fit between the hook and the buffer device. The other end of the buffer seat box is open and connected to the car body through a flange plate. This connection method is not only stable but also easy to install and maintain. The buffer seat is a key component of the buffer device, which is divided into two parts: the connecting part and the buffer part. The connecting part is tightly connected to the tail of the tight coupling hook, ensuring that the hook can stably transmit force when subjected to external force. The buffer part is designed with a traction end and a buffer end, which are used to deal with different external force situations. The traction end is close to the side of the tight coupling hook, and its main function is to buffer the impact of the hook when subjected to traction. When the train is being pulled, the traction force will be transmitted to the traction end through the hook, and then along the buffer seat box to the car body. This design can effectively disperse and absorb the traction force, protecting the hook and the car body from damage. The buffer end is located at the other end of the buffer part, away from the tight coupling hook. Its main role is to buffer the impact of the hook when subjected to pressure. When the train is braking or encountering other external force impact, the pressure will be transmitted to the buffer end through the hook, and then along the flange plate to the car body. This design can also effectively disperse and absorb the pressure, ensuring the safe operation of the train.

[0025] The buffer device in this application has a small overall volume, and the buffer end and the traction end are reasonably distributed in the limited space, which can not only buffer the pressure but also buffer the traction, making the vehicle run more smoothly and improving the safety and comfort of passengers.

[0026] The buffer part includes a rectangular seat 6, which is surrounded by a side bar 7 extending to the flange plate 5. The center of the side bar 7 forms a receiving groove 8, in which a compression buffer block assembly 9 is installed. One end of the compression buffer block assembly 9 is connected to the rectangular seat 6, and the other end is connected to the flange plate 5.

[0027] The two sides of the rectangular seat 6 are symmetrically provided with outwardly extending mounting ears 10, which are fixed on the side wall of the side column 7 and close to one end of the flange plate 5. One side of the mounting ear 10 is provided with a traction buffer block component 11, and the other side of the mounting ear 10 is provided with a buffer spring 12. The traction buffer block component 11 is located close to one side of the tight coupling 1, and the buffer spring 12 is located close to one side of the flange plate 5. One end of the traction buffer block component 11 is connected with one side of the mounting ear 10, and the other end of the traction buffer block component 11 is connected with the buffer seat box 2. One end of the buffer spring 12 is connected with the other side of the mounting ear 10, and the other end of the buffer spring 12 is connected with the flange plate 5.

[0028] Specifically, the rectangular seat is the main structure of the buffer part, and side columns extending to the flange plate are designed around it. These side columns not only increase the stability of the rectangular seat, but also form a containing groove inside it. The containing groove is installed with a compression buffer block component, which can deform under external force to absorb and disperse impact energy. One end of the compression buffer block component is connected with the rectangular seat, and the other end is connected with the flange plate. This connection ensures that the buffer block can stably transmit force and effectively disperse impact energy to the vehicle body when it is subjected to external force. On both sides of the rectangular seat, outwardly extending mounting ears are symmetrically arranged. These mounting ears are fixed on the side wall of the side column and close to one end of the flange plate. The design of the mounting ears provides installation positions for the traction buffer block component and the buffer spring. The traction buffer block component is located close to the tight coupling, and its main function is to buffer the impact of the coupling when it is subjected to traction. One end of the traction buffer block component is connected with one side of the mounting ear, and the other end is connected with the buffer seat box. This connection ensures that the traction force can be stably transmitted to the buffer seat box through the traction buffer block, and then dispersed to the vehicle body. The buffer spring is located close to the flange plate, and its main function is to provide additional buffering and damping effect. One end of the buffer spring is connected with the other side of the mounting ear, and the other end is connected with the flange plate. When subjected to external impact, the buffer spring can elastically deform to absorb and disperse impact energy, protecting the vehicle body and coupling from damage. At the same time, the buffer spring can play a limiting role in the compression process, preventing the buffer from being crushed and determining the compression stroke of the buffer.

[0029] When the pressure from the coupling is transmitted to the buffer seat through the knuckle pin, the compression buffer block component and the buffer spring component jointly bear the pressure and simultaneously play a buffering role, and finally transmit the pressure along the flange plate to the vehicle body. When the traction force from the coupling is transmitted to the buffer seat through the knuckle pin, the traction buffer block component bears the traction force and simultaneously plays a buffering role, and finally transmits the traction force to the vehicle body through the buffer box.

[0030] When the vehicle runs to the uniform speed driving stage, the coupler and the coupler are relatively static, and no external force is generated, so under the action of the traction buffer block composition and the buffer spring, the traction buffer block composition compressed by the external force will release the absorbed energy and return to the original state.

[0031] It is worth noting that the traction buffer block composition and the compression buffer block composition described in this application are specifically assembled together by different rubber plates using a structure similar to a mortise and tenon joint. This structure is a conventional buffer block structure, and other buffer structures can also be used, which are not limited here.

[0032] Further, one end of the channel in the inner wall of the buffer box is provided with a groove along the traction direction of the buffer seat, and the groove is used to accommodate the buffer seat. If excessive load occurs during traction stretching, the groove can limit the position and prevent the buffer from being damaged. It also confirms the stroke of the traction stretching of the buffer seat.

[0033] The connecting part includes a connecting lug 13 provided on the rectangular seat 6, and the connecting lug 13 is provided with a mounting hole. The mounting hole is connected with the hook tail of the tight coupling coupler 1 through a hook tail pin 14.

[0034] Specifically, the connecting part is mainly composed of connecting lugs provided on the rectangular seat. These connecting lugs are used to connect with the hook tail of the tight coupling coupler. The connecting lugs are provided with mounting holes, which provide mounting positions for the hook tail pins. The hook tail pin is a special connecting piece that passes through the mounting hole on the connecting lug and connects with the hook tail of the tight coupling coupler. This connection method is not only stable and reliable, but also convenient to install and disassemble. Through the connection of the hook tail pin, the coupler and the buffer device form a tight whole, which can jointly cope with various external force impacts. The design of the connecting lug not only considers the stability of the connection, but also considers the convenience of installation. The position and size of the mounting hole should ensure that the hook tail pin can smoothly pass through and tightly match with the hook tail of the coupler. At the same time, the connecting lug should ensure that it can meet various requirements during train operation.

[0035] The connecting lug 13 is two, located on both sides of the tight coupling coupler 1.

[0036] Specifically, the two connecting ears can provide more balanced support and connection, ensuring that the coupler can remain stable when subjected to external forces. Whether it is traction or pressure, the two connecting ears can effectively disperse and transmit these forces, thereby protecting the coupler and the buffer device from damage. Secondly, the design of the two connecting ears also increases the reliability of the connection. Even if one of the connecting ears is damaged or fails, the other connecting ear can still maintain the connection, ensuring that the coupler does not fall off or lose connection. This redundant design improves the safety and reliability of the entire buffer device. In addition, the two connecting ears also facilitate installation and maintenance. During installation, the position and angle of the two connecting ears can be adjusted to ensure a tight fit between the coupler and the buffer device. During maintenance, the status of the two connecting ears can also be easily checked and maintained, allowing problems to be discovered and addressed in a timely manner.

[0037] The hook tail end of the tight-coupling coupler 1 is connected to the rectangular seat 6 through a spring 15.

[0038] Specifically, the spring connection can provide certain buffering and damping effects. During train operation, due to track unevenness or other factors, the coupler may be subjected to sudden impact forces. The spring connection can absorb these impact forces, reducing the vibration and noise of the car body, improving the running stability and ride comfort of the train.

[0039] The above is only a few embodiments of the present application, and does not limit the present application in any form. Although the preferred embodiments are disclosed as above, they are not intended to limit the present application. Any skilled person in the art can make minor changes or modifications to the above disclosed technical content without departing from the scope of the present application, and such equivalent embodiments are equivalent to the equivalent embodiments within the scope of the technical solutions.

Claims

1. A close-fitting coupler buffer device, characterized in that, The utility model relates to a buffer seat box body (2) is provided with buffer cavity (3) in, buffer cavity (3) is used for accommodating buffer seat (4), one end of buffer seat box body (2) is provided with the passage with buffer cavity (3) through, the tail of the tight coupling car hook (1) passes through the passage and is connected with buffer seat (4), the other end of buffer seat box body (2) is open and is connected on the car body through flange plate (5); The buffer seat (4) includes a connecting portion and a buffer portion, the connecting portion is connected with the tail of the tight coupling car hook (1), the buffer portion is provided with a traction end near one side of the tight coupling car hook (1) and a buffer end away from the other end of the tight coupling car hook (1), the traction end is used for buffering the traction force received by the tight coupling car hook (1) and transmitting the traction force along the buffer seat box body (2) to the car body, and the buffer end is used for buffering the pressure received by the tight coupling car hook (1) and transmitting the pressure along the flange plate (5) to the car body. The buffer portion includes a rectangular seat (6), the rectangular seat (6) is provided with a side column (7) extending to the flange plate (5) around, the side column (7) is formed with a receiving groove (8) in the center, and a compression buffer block assembly (9) is installed in the receiving groove (8), one end of the compression buffer block assembly (9) is connected with the rectangular seat (6), and the other end of the compression buffer block assembly (9) is connected with the flange plate (5).

2. A tightlock coupler draft gear assembly according to claim 1, wherein, Two mounting ears (10) extending outward are symmetrically arranged on both sides of the rectangular seat (6), the mounting ear (10) is fixed on the side wall of the side column (7) and is close to one end of the flange plate (5), a traction buffer block assembly (11) is installed on one side of the mounting ear (10), a buffer spring (12) is installed on the other side of the mounting ear (10), the traction buffer block assembly (11) is located on the side close to the tight coupling car hook (1), the buffer spring (12) is located on the side close to the flange plate (5), one end of the traction buffer block assembly (11) is connected with one side of the mounting ear (10), the other end of the traction buffer block assembly (11) is connected with the buffer seat box body (2), one end of the buffer spring (12) is connected with the other side of the mounting ear (10), and the other end of the buffer spring (12) is connected with the flange plate (5). The connecting portion includes a connecting lug (13) arranged on the rectangular seat (6), the connecting lug (13) is provided with a mounting hole, and the mounting hole is connected with the hook tail of the tight coupling car hook (1) through a hook tail pin (14).

3. A tightlock coupler draft gear assembly according to claim 2, wherein, The connecting lug (13) is two and located on both sides of the tight coupling car hook (1).

4. A tightlock coupler draft gear assembly according to claim 3, wherein, The hook tail end of the tight coupling car hook (1) is connected with the rectangular seat (6) through a spring (15).

5. A tightlock coupler draft gear assembly as defined in claim 3 wherein, ​

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