Traction rod node assembly

Abstract

The utility model relates to a traction rod node assembly, which belongs to the technical field of railway transportation and comprises an outer sleeve, rubber is fixedly connected to the inner surface of the outer sleeve, an inner sleeve is fixedly connected to the inner surface of the rubber, a threaded groove is arranged at one end of the inner sleeve, and a bolt hole is formed in the rubber in a penetrating manner. A limiting mechanism is installed in the inner sleeve, the inner surface and the outer surface of the rubber are both arranged to be in a convex shape, the inner surface of the outer sleeve is arranged to be in a concave shape, and the outer surface of the inner sleeve is arranged to be in a concave shape. According to the joint assembly, the outer sleeve with the concave inner surface, the inner sleeve with the concave outer surface and the rubber with the convex inner surface and convex outer surface are matched for use, so that when the joint assembly is subjected to a transverse load, the extrusion clamping force in the inclined direction is increased, the rubber is prevented from being separated, and the joint assembly is stable and reliable. Therefore, the node assembly can bear larger load, and the transportation safety of the railway vehicle is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of railway transportation technology, and specifically relates to a traction rod node assembly. Background Technology

[0002] In the railway transportation sector, traction nodes typically refer to key locations within a railway network that undertake train traction tasks. These nodes play a vital role in railway operations. The following are some of the main characteristics and functions of railway traction nodes: Main Characteristics: Locomotive Changeover: At traction nodes, trains may change locomotives, especially at the junctions of different railway companies or different power systems (such as DC and AC); Technical Stops: Trains may require technical checks, water replenishment, refueling, or cleaning at traction nodes; Operations Management: Traction nodes are usually important locations for railway transportation management and dispatching, responsible for train reception, dispatching, marshalling, and scheduling; Functions: Power Conversion: At the junction of electrified and non-electrified railways, traction nodes are used to convert electrically traction trains to diesel traction, or vice versa; Train Formation: At traction nodes, trains may be formed or deformed to adapt to the transportation needs of different lines; Signal Control: Traction nodes are typically equipped with complex signaling systems to ensure the safe and efficient passage of trains; Maintenance and Repair: Some traction nodes may have maintenance facilities for routine maintenance or emergency repairs of locomotives and trains.

[0003] Currently, existing traction nodes for rail transportation generally consist of an outer sleeve, rubber, and an inner sleeve. However, the long-term back-and-forth pulling of rail vehicles can cause the rubber to detach from the outer sleeve or inner sleeve, affecting the safety of rail vehicle transportation. Based on this, a traction rod node assembly is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a traction rod node assembly with a simple structure and reasonable design in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A traction rod node assembly includes an outer sleeve, an inner surface of which is fixedly connected to a rubber, an inner sleeve of which is fixedly connected to the inner surface of the rubber, one end of which is provided with a threaded groove, a bolt hole is provided through the rubber, and a limit mechanism is installed inside the inner sleeve.

[0007] As a further optimization of this utility model, both the inner and outer surfaces of the rubber are set to a "convex" shape.

[0008] As a further optimization of this utility model, the inner surface of the outer sleeve is set to a concave shape, and the outer surface of the inner sleeve is set to a concave shape.

[0009] As a further optimization of this utility model, the "convex" shape on the outer surface of the rubber is adapted to the "concave" shape on the inner surface of the outer sleeve, and the "convex" shape on the inner surface of the rubber is adapted to the "concave" shape on the outer surface of the inner sleeve.

[0010] As a further optimization of this utility model, the limiting mechanism includes an airbag fixedly connected to the inner surface of the inner sleeve, an air chamber is provided on the outer surface of the inner sleeve, the air chamber is connected to the inside of the airbag through a connecting hole, a plug plate is slidably connected to the air chamber, a plug groove is provided on the inner surface of the rubber, and the plug plate is adapted to the plug groove.

[0011] As a further optimization of this utility model, the insertion groove is formed on the inner surface of the rubber in a "convex" shape, and the air chamber is formed on the outer surface of the inner sleeve in a "concave" shape.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This utility model uses an outer sleeve with a concave inner surface, an inner sleeve with a concave outer surface, and rubber with both inner and outer surfaces convex to increase the clamping force in the inclined direction when the node assembly is subjected to lateral load, preventing the rubber from detaching. This allows the node assembly to withstand a greater load and ensures the safety of rail vehicle transportation.

[0014] 2. By setting a limiting mechanism, when the traction rod is installed in the node assembly, the traction rod will squeeze the airbag in the limiting mechanism as it passes through the inner sleeve. This causes the gas in the airbag to enter the air chamber through the connecting hole, pushing the plug plate into the plug groove. This further increases the obstruction of the rubber and prevents the rubber from falling off. Since the airbag is located between the traction rod and the inner sleeve, it will increase the compressive force between the inner sleeve and the traction rod, preventing the traction rod from detaching and improving the firmness of the connection between the node assembly and the traction rod. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the side profile of this utility model.

[0017] Figure 3 This is the utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0018] Figure 4 This is a schematic diagram of the frontal cross-section of this utility model;

[0019] Figure 5 This is a schematic diagram of the three-dimensional partial cross-section structure of this utility model.

[0020] In the diagram: 1. Outer sleeve; 2. Rubber; 3. Inner sleeve; 4. Bolt hole; 5. Connecting hole; 6. Air chamber; 7. Connecting plate; 8. Connecting groove; 9. Airbag. Detailed Implementation

[0021] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0022] Example: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a traction rod node assembly includes an outer sleeve 1, the inner surface of which is concave, and a rubber 2 fixedly connected to the inner surface of the outer sleeve 1. Both the inner and outer surfaces of the rubber 2 are convex, and the convex shape on the outer surface of the rubber 2 matches the concave shape on the inner surface of the outer sleeve 1. An inner sleeve 3 is fixedly connected to the inner surface of the rubber 2, and the outer surface of the inner sleeve 3 is concave, matching the convex shape on the inner surface of the rubber 2. One end of the inner sleeve 3 has a threaded groove, which facilitates the connection of the traction rod. A bolt hole 4 is provided through the rubber 2, which facilitates the installation of the node assembly. A limit mechanism is installed inside the inner sleeve 3.

[0023] In use, the traction rod is installed inside the inner sleeve 3, and then the node assembly is installed in the corresponding position through the bolt holes 4. When the node assembly is subjected to axial load, the cooperation of the outer sleeve 1 with its inner surface set as "concave", the inner sleeve 3 with its outer surface set as "concave", and the rubber 2 with both its inner and outer surfaces set as "convex" increases the squeezing and clamping force of the rubber 2 with the outer sleeve 1 and the inner sleeve 3 in the inclined direction, preventing the rubber 2 from detaching. This allows the node assembly to withstand a larger load and ensures the safety of rail vehicle transportation.

[0024] like Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the limiting mechanism includes an airbag 9 fixedly connected to the inner surface of the inner sleeve 3. The inner corner of the airbag 9 is arc-shaped to facilitate the passage of the traction rod. An air chamber 6 is provided on the outer surface of the inner sleeve 3. Multiple air chambers 6 are arranged in an equidistant array along the side wall of the inner sleeve 3. The air chambers 6 are connected to the inside of the airbag 9 through the connecting hole 5. A plug-in plate 7 is slidably connected inside the air chamber 6. A plug-in groove 8 is provided on the inner surface of the rubber 2. The plug-in plate 7 is adapted to the plug-in groove 8. The plug-in groove 8 is located on the inner surface of the rubber 2 and is set in a "convex" shape. The air chamber 6 is located on the outer surface of the inner sleeve 3 and is set in a "concave" shape.

[0025] When the traction rod is installed inside the inner sleeve 3, the traction rod will compress the airbag 9 as it passes through the inner sleeve 3, causing the gas inside the airbag 9 to enter the air chamber 6 through the connecting hole 5. This pushes the plug plate 7 into the plug groove 8, further increasing the obstruction of the rubber 2 and preventing the rubber 2 from falling off. Since the airbag 9 is located between the traction rod and the inner sleeve 3, it will increase the compressive force between the inner sleeve 3 and the traction rod, preventing the traction rod from detaching and improving the firmness of the connection between the node assembly and the traction rod.

[0026] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A traction rod node assembly, comprising an outer sleeve (1), characterized in that: The inner surface of the outer sleeve (1) is fixedly connected to a rubber (2), and the inner surface of the rubber (2) is fixedly connected to an inner sleeve (3). One end of the inner sleeve (3) is provided with a threaded groove, and a bolt hole (4) is opened through the rubber (2). A limit mechanism is installed inside the inner sleeve (3).

2. The traction rod node assembly according to claim 1, characterized in that: The inner and outer surfaces of the rubber (2) are both convex.

3. The traction rod node assembly according to claim 2, characterized in that: The inner surface of the outer sleeve (1) is set to a concave shape, and the outer surface of the inner sleeve (3) is set to a concave shape.

4. A traction rod node assembly according to claim 3, characterized in that: The "convex" shape on the outer surface of the rubber (2) is adapted to the "concave" shape on the inner surface of the outer sleeve (1), and the "convex" shape on the inner surface of the rubber (2) is adapted to the "concave" shape on the outer surface of the inner sleeve (3).

5. A traction rod node assembly according to claim 4, characterized in that: The limiting mechanism includes an airbag (9) fixedly connected to the inner surface of the inner sleeve (3). An air chamber (6) is provided on the outer surface of the inner sleeve (3). The air chamber (6) is connected to the inside of the airbag (9) through a connecting hole (5). A plug plate (7) is slidably connected inside the air chamber (6). A plug groove (8) is provided on the inner surface of the rubber (2). The plug plate (7) is adapted to the plug groove (8).

6. A traction rod node assembly according to claim 5, characterized in that: The insertion groove (8) is located on the inner surface of the rubber (2) and is convex in shape, while the air chamber (6) is located on the outer surface of the inner sleeve (3) and is concave in shape.

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