Damping assembly of motor train unit coupler rubber buffer

Abstract

The utility model relates to the technical field of motor train unit coupler rubber buffers, and discloses a shock absorption assembly of a motor train unit coupler rubber buffer, which comprises a shell, the top and the bottom of the shell are respectively connected with an upper mounting plate and a lower mounting plate, and a plurality of rubber blocks are arranged in the shell. The rubber blocks are arranged at equal intervals in the vertical direction, mounting holes are formed in the left ends and the right ends of the upper mounting plate and the lower mounting plate correspondingly, a plurality of honeycomb-shaped engineering plastic partition plates are alternately arranged between the rubber blocks, and connecting columns are inserted into the left ends and the right ends of the upper mounting plate, the shell, the rubber blocks and the honeycomb-shaped engineering plastic partition plates correspondingly. And the lowermost end of the connecting column is in threaded connection with the lower mounting plate. According to the utility model, a plurality of honeycomb-shaped engineering plastic partition plates are arranged, so that a friction interface is increased through the honeycomb-shaped engineering plastic partition plates, extra energy is consumed through interlayer micro-slippage friction, meanwhile, stress distribution is guided to be more uniform, and stress concentration is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of rubber buffers for EMU couplers, specifically a shock-absorbing component for a rubber buffer for EMU couplers. Background Technology

[0002] The rubber buffer of the train coupler is one of the core components of the coupler buffer system. Mainly installed at the rear of the coupler, it plays a crucial role in absorbing and dissipating the longitudinal impact energy generated during train operation, especially during connection and braking. It is essential for ensuring train stability, passenger comfort, protecting the car body structure, and extending vehicle life. The shock absorption component is a vital part of the rubber buffer of the train coupler.

[0003] The existing damping components of rubber buffers for EMU couplers lack a friction interface during use, making it impossible to dissipate additional energy through interlayer micro-slip friction. This also leads to uneven stress distribution and stress concentration. Furthermore, it cannot convert some impact kinetic energy into frictional heat dissipation, resulting in low overall energy dissipation efficiency. Therefore, there is an urgent need for a damping component of rubber buffers for EMU couplers to solve the above technical problems. Utility Model Content

[0004] The purpose of this utility model is to provide a shock-absorbing component for a rubber buffer of a train coupler, in order to solve the problems mentioned in the background art. The existing shock-absorbing components of the rubber buffer of the train coupler lack a friction interface during use, and cannot consume additional energy through interlayer micro-slip friction. At the same time, it leads to uneven stress distribution and stress concentration. Furthermore, it cannot convert some of the impact kinetic energy into frictional heat dissipation, resulting in low overall energy consumption efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A shock-absorbing component for a rubber buffer in a train coupler includes a housing. An upper mounting plate and a lower mounting plate are connected to the top and bottom of the housing, respectively. Multiple rubber blocks are arranged inside the housing at equal intervals along a vertical direction. Mounting holes are provided at both ends of the upper and lower mounting plates. Multiple honeycomb-shaped engineering plastic partitions are alternately arranged between the rubber blocks. Connecting posts are inserted at both ends of the upper mounting plate, housing, rubber blocks, and honeycomb-shaped engineering plastic partitions. The lowest end of each connecting post is threaded to the lower mounting plate. A mounting post is inserted near the middle of the housing and upper mounting plate, with its lower end connected to the top of the uppermost rubber block. Friction energy-dissipating rings are fitted around the outer sides of the rubber blocks and honeycomb-shaped engineering plastic partitions. External threads are provided circumferentially at the upper ends of the mounting posts and the upper and lower ends of the connecting posts. A locking nut is threaded to the upper end of the connecting posts. Several heat dissipation holes are provided on the sidewalls of the housing.

[0007] As a preferred embodiment of this utility model, the honeycomb engineering plastic partition is made of nylon, the friction energy dissipation ring is made of powder metallurgy friction products, and the rubber block and the honeycomb engineering plastic partition are not connected and allow for slight sliding.

[0008] In a preferred embodiment of this invention, the number of rubber blocks is set to six.

[0009] In a preferred embodiment of this invention, the number of honeycomb engineering plastic partitions is set to five.

[0010] In a preferred embodiment of this invention, the connecting column is in contact with both the rubber block and the honeycomb engineering plastic partition, but they are not connected.

[0011] In a preferred embodiment of this invention, the mounting post is in contact with the top of the outer casing and the upper mounting plate, but they are not connected.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model increases the friction interface by setting multiple honeycomb-shaped engineering plastic partitions, which consumes additional energy through interlayer micro-slip friction, while guiding a more uniform stress distribution and reducing stress concentration.

[0014] 2. By setting up a friction energy dissipation ring, during the buffering and shock absorption process, the friction energy dissipation ring undergoes relative sliding friction with the rubber block and the honeycomb engineering plastic partition, thereby converting part of the impact kinetic energy into frictional heat and dissipating it, significantly improving the overall energy dissipation efficiency. Attached Figure Description

[0015] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the overall structure of this utility model.

[0018] In the diagram: 1. Outer shell; 2. Upper mounting plate; 3. Lower mounting plate; 4. Heat dissipation hole; 5. Connecting post; 6. Locking nut; 7. Rubber block; 8. Honeycomb engineering plastic partition; 9. Mounting post; 10. Friction energy dissipation ring; 11. External thread; 12. Mounting hole. Detailed Implementation

[0019] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. In the embodiments of the present utility model, the different types of cross-sectional lines are not labeled according to national standards, nor do they specify material requirements for the components; they are used to distinguish the cross-sectional views of the components in the drawings.

[0020] Please see Figure 1-2 A shock-absorbing component for a rubber buffer in a train coupler includes a housing 1. An upper mounting plate 2 and a lower mounting plate 3 are connected to the top and bottom of the housing 1, respectively. Multiple rubber blocks 7 are disposed inside the housing 1, spaced equally vertically. Mounting holes 12 are provided at both ends of the upper mounting plate 2 and the lower mounting plate 3. Multiple honeycomb-shaped engineering plastic partitions 8 are alternately arranged between the rubber blocks 7. The upper mounting plate 2, the housing 1, the rubber blocks 7, and the honeycomb-shaped engineering plastic partitions 8 are all... A connecting post 5 is inserted, and the lowest end of the connecting post 5 is threadedly connected to the lower mounting plate 3. A mounting post 9 is inserted near the middle of the outer shell 1 and the upper mounting plate 2. The lower end of the mounting post 9 is connected to the top of the uppermost rubber block 7. A friction energy dissipation ring 10 is fitted on the outer side of the rubber block 7 and the honeycomb engineering plastic partition 8. External threads 11 are provided circumferentially on the upper end of the mounting post 9 and the upper and lower ends of the connecting post 5. A locking nut 6 is threadedly connected to the upper end of the connecting post 5. Several heat dissipation holes 4 are opened on the side wall of the outer shell 1.

[0021] Among them, the honeycomb engineering plastic partition 8 is made of nylon, the friction energy dissipation ring 10 is made of powder metallurgy friction products, the rubber block 7 and the honeycomb engineering plastic partition 8 are not connected and allow slight sliding.

[0022] The number of rubber blocks 7 is set to six.

[0023] The number of honeycomb engineering plastic partitions 8 is set to five.

[0024] Among them, the connecting column 5 is in contact with the rubber block 7 and the honeycomb engineering plastic partition 8, but they are not connected.

[0025] The mounting post 9 is in contact with the top of the outer casing 1 and the upper mounting plate 2, but they are not connected.

[0026] The working principle and usage process of this utility model are as follows: First, during operation, the two mounting posts 9 are connected to the coupler. When the two mounting posts 9 are impacted, the multiple honeycomb-shaped engineering plastic partitions 8 increase the friction interface. Extra energy is consumed through interlayer micro-slip friction, while guiding the stress distribution to be more uniform and reducing stress concentration. At the same time, the friction energy dissipation ring 10 is set up. During the buffering and shock absorption process, the friction energy dissipation ring 10 has relative sliding friction with the rubber block 7 and the honeycomb-shaped engineering plastic partitions 8, thereby converting part of the impact kinetic energy into frictional heat dissipation, significantly improving the overall energy dissipation efficiency. At this time, the rubber block 7 and the honeycomb-shaped engineering plastic partitions 8 slide up and down along the two connecting posts 5. The contents not described in detail in this description belong to the prior art known to those skilled in the art.

[0027] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A shock-absorbing component for a rubber buffer of a train coupler, comprising a housing (1), characterized in that: The top and bottom of the outer shell (1) are respectively connected to an upper mounting plate (2) and a lower mounting plate (3). Multiple rubber blocks (7) are arranged inside the outer shell (1), with the multiple rubber blocks (7) arranged at equal intervals along the vertical direction. Mounting holes (12) are provided at both ends of the upper mounting plate (2) and the lower mounting plate (3). Multiple honeycomb-shaped engineering plastic partitions (8) are alternately arranged between the multiple rubber blocks (7). Connecting posts (5) are inserted at both ends of the upper mounting plate (2), the outer shell (1), the rubber blocks (7), and the honeycomb-shaped engineering plastic partitions (8). 5) The lowest end is threaded to the lower mounting plate (3). A mounting post (9) is inserted in the middle of the outer shell (1) and the upper mounting plate (2). The lower end of the mounting post (9) is connected to the top of the uppermost rubber block (7). Friction energy dissipation rings (10) are sleeved on the outer side of the rubber block (7) and the honeycomb engineering plastic partition (8). External threads (11) are provided on the upper end of the mounting post (9) and the upper and lower ends of the connecting post (5) in the circumferential direction. A locking nut (6) is threaded to the upper end of the connecting post (5). Several heat dissipation holes (4) are opened on the side wall of the outer shell (1).

2. The shock-absorbing assembly of a rubber buffer for a train coupler according to claim 1, characterized in that: The honeycomb engineering plastic partition (8) is made of nylon, the friction energy dissipation ring (10) is made of powder metallurgy friction products, the rubber block (7) and the honeycomb engineering plastic partition (8) are not connected and allow slight sliding.

3. The shock-absorbing assembly of a rubber buffer for a train coupler according to claim 1, characterized in that: The number of the rubber blocks (7) is set to six.

4. The shock-absorbing assembly of a rubber buffer for a train coupler according to claim 1, characterized in that: The number of the honeycomb engineering plastic partitions (8) is set to five.

5. The shock-absorbing assembly of a rubber buffer for a train coupler according to claim 1, characterized in that: The connecting column (5) is in contact with the rubber block (7) and the honeycomb engineering plastic partition (8), but they are not connected.

6. The shock-absorbing assembly of a rubber buffer for a train coupler according to claim 1, characterized in that: The mounting post (9) is in contact with the top of the outer casing (1) and the upper mounting plate (2), but they are not connected.

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