A new structure of bonded rail

Abstract

The utility model discloses a novel structure's cementing rail belongs to railway track field, including dovetail end head cementing plate, one end of dovetail end head cementing plate is fixedly connected with first dovetail cementing rail, the other end of dovetail end head cementing plate is fixedly connected with second dovetail cementing rail, and the outer wall of first dovetail cementing rail and second dovetail cementing rail is provided with reinforcing component. The utility model has the beneficial effects that: in order to let the wheel cross cementing rail area more smoothly, setting adhering groove and convex edge at first dovetail cementing rail and second dovetail cementing rail both ends, can be closely combined with dovetail end head cementing plate, and the wheel can evenly disperse load when driving to two rail cementing area because of the shape characteristics of dovetail end head cementing plate, thereby effectively avoid the misplacement and deformation problem that appears because of uneven stress of cementing plate, and the end of traditional structure's cementing rail is linear design, and is easy to appear displacement and other problems.

Description

Technical Field

[0001] This utility model relates to the field of railway tracks, and more specifically, to a novel type of adhesive-bonded rail. Background Technology

[0002] With the development of railway technology, seamless track has become one of the main development trends of modern railways. When a railway is converted to seamless track, adhesive-bonded rails can effectively solve the insulation problem at the rail joints, while maintaining the continuity of the rails. This avoids problems such as track unevenness and train impact caused by mechanical connections at the joints, improving the overall performance and stability of the track, enhancing the smoothness and reliability of the line, reducing train running resistance, and increasing train speed and comfort. Adhesive-bonded rails are a key technology application in railway signaling systems for achieving cross-section signal isolation, especially crucial in electrified railways and automatic block systems. This application is called adhesive-bonded insulated joints, which simultaneously meet the dual requirements of mechanical connection and electrical insulation of the rails.

[0003] Chinese invention patent CN109958007A discloses an installation method and insulation of a rail adhesive-bonded insulated joint. The method involves fixing a pre-treated clamping plate to the rail via a connecting plate, and applying a sealant to the exposed connection points of the clamping plate, rail, and connecting plate. This installation method makes the insulation layer of the adhesive-bonded insulated joint less susceptible to damage and improves its insulation performance under wet conditions. While adhesive-bonded rails offer significant advantages in seamless tracks, they still face a series of technical and management challenges in practical applications. Existing adhesive-bonded rails are mainly single-line structures, prone to deformation under load. To reduce track unevenness and train impact caused by mechanical connections at the joints, improve the overall performance and stability of the track, and enhance the smoothness and reliability of the line, a novel adhesive-bonded rail structure is proposed. Utility Model Content

[0004] To overcome the misalignment that occurs when the adhesive-bonded rail is subjected to lateral loads from a wheel in the prior art, this utility model provides a novel adhesive-bonded rail structure, including a dovetail end adhesive-bonded plate. One end of the dovetail end adhesive-bonded plate is fixedly connected to a first dovetail adhesive-bonded rail, and the other end of the dovetail end adhesive-bonded plate is fixedly connected to a second dovetail adhesive-bonded rail. The outer walls of the first and second dovetail adhesive-bonded rails are provided with reinforcing components.

[0005] Preferably, the first dovetail adhesive rail has an attachment groove at one end near the dovetail end adhesive plate, and the shape of the attachment groove is adapted to the center of the outer wall of the dovetail end adhesive plate.

[0006] Preferably, the second dovetail adhesive rail has a raised edge at one end near the dovetail end adhesive plate, and the shape of the raised edge is adapted to the center of the inner wall of the dovetail end adhesive plate.

[0007] Preferably, the dovetail end adhesive plate is connected to the first dovetail adhesive rail and the second dovetail adhesive rail by adhesive bonding.

[0008] Preferably, threaded grooves are provided on both the front and back sides of the first and second dovetail adhesive joint rails.

[0009] Preferably, the reinforcing component includes two bolt clamps, which are attached to the front and back of the first dovetail joint rail and the second dovetail joint rail, respectively.

[0010] Preferably, the reinforcing assembly includes bolts and nuts, the bolts passing through the two bolt clamps and extending into the internal threaded connection of the threaded groove.

[0011] Preferably, the nut is threaded onto the outside of the bolt.

[0012] Preferably, the first dovetail joint rail and the second dovetail joint rail are located on the same horizontal line, and the straightness of the first dovetail joint rail and the second dovetail joint rail is less than 0.2 mm / m.

[0013] Beneficial effects:

[0014] The beneficial effects of adopting the technical solution of this utility model are as follows:

[0015] (1) In order to make the wheel cross the jointed rail area more smoothly, the first dovetail jointed rail and the second dovetail jointed rail are provided with attachment grooves and protrusions at both ends, which can fit tightly with the dovetail end jointed plate. When the wheel travels to the jointed area of ​​the two rails, the shape characteristics of the dovetail end jointed plate can evenly distribute the load, thereby effectively avoiding the misalignment and deformation of the jointed plate due to uneven force.

[0016] (2) The ends of the traditional adhesive-bonded rail are designed as straight lines, and the two ends cannot transmit lateral force. The two sides of the adhesive-bonded rail rely entirely on the pre-tightening force of the bolts to clamp, which is prone to displacement and other problems. However, the first dovetail adhesive-bonded rail and the second dovetail adhesive-bonded rail are provided with attachment grooves and protrusions at both ends, so that the two ends can transmit lateral force through the dovetail end adhesive-bonded plate, so that the load is transmitted to the rail faster and more smoothly, and further improves the durability of the dovetail end adhesive-bonded plate. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a side view of the structure of the bolt clamp of this utility model;

[0020] Figure 3 This is a top view of the structure of the dovetail end adhesive bonding plate of this utility model;

[0021] Figure 4 This is an exploded view of the structure of this utility model;

[0022] Figure 5 This is a front view of the structure of the first dovetail adhesive joint rail of this utility model;

[0023] Figure 6 This is a schematic diagram of the load on the dovetail end adhesive bonding plate of this utility model.

[0024] In the diagram: 1. First dovetail adhesive joint; 10. Attachment groove; 2. Second dovetail adhesive joint; 20. Raised edge; 3. Dovetail end adhesive joint plate; 4. Bolt clamp; 5. Bolt; 6. Nut. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments. The specific embodiments are as follows:

[0027] like Figures 1 to 5As shown, a novel type of adhesive-bonded rail includes a dovetail end adhesive-bonded plate 3. A first dovetail adhesive-bonded rail 1 is fixedly connected to one end of the dovetail end adhesive-bonded plate 3, and a second dovetail adhesive-bonded rail 2 is fixedly connected to the other end of the dovetail end adhesive-bonded plate 3. Reinforcing components are provided on the outer walls of the first and second dovetail adhesive-bonded rails 1 and 2. An attachment groove 10 is formed at the end of the first dovetail adhesive-bonded rail 1 near the dovetail end adhesive-bonded plate 3, and the shape of the attachment groove 10 is adapted to the center of the outer wall of the dovetail end adhesive-bonded plate 3. A raised edge 2 is provided at the end of the second dovetail adhesive-bonded rail 2 near the dovetail end adhesive-bonded plate 3. 0. The shape of the protruding edge 20 is adapted to the center of the inner wall of the dovetail end adhesive plate 3. The dovetail end adhesive plate 3 is connected to the first dovetail adhesive rail 1 and the second dovetail adhesive rail 2 by adhesive bonding. Unlike traditional adhesive rails, since traditional adhesive plates are usually designed with a flat shape, the rail surface connecting the adhesive plates is also flat, which is not suitable for adapting irregularly shaped adhesive plates. Therefore, the first dovetail adhesive rail 1 and the second dovetail adhesive rail 2 are respectively provided with the bonding surface of the dovetail end adhesive plate 3 and the bonding surface of the dovetail end adhesive plate 3, so that they can be tightly bonded after heating and bonding.

[0028] It should be noted that the first dovetail joint rail 1 and the second dovetail joint rail 2 are located on the same horizontal line, and the straightness of the first dovetail joint rail 1 and the second dovetail joint rail 2 is less than 0.2mm / m, ensuring that the first dovetail joint rail 1 and the second dovetail joint rail 2 are aligned left and right. The dovetail end joint plate 3 is usually 8mm, which is adjusted according to the size of the rail. When the wheel travels through the 8mm joint area, its load can be evenly distributed according to the shape of the dovetail end joint plate 3, so that the first dovetail joint rail 1 and the second dovetail joint rail 2 can jointly bear the vertical load of 23 tons of axle weight, ensuring that the wheel passes smoothly through the joint area.

[0029] In addition, threaded grooves are provided on both the front and back of the first dovetail joint rail 1 and the second dovetail joint rail 2. The reinforcement component includes two bolt clamps 4, which are attached to the front and back of the first dovetail joint rail 1 and the second dovetail joint rail 2. The reinforcement component includes bolts 5 and nuts 6. The bolts 5 pass through the two bolt clamps 4 and extend into the internal threaded grooves for connection. The nuts 6 are threaded on the outside of the bolts 5. The number of holes on the bolt clamps 4 is matched with the number of threaded grooves provided on both the front and back of the first dovetail joint rail 1 and the second dovetail joint rail 2. Usually, six M27 bolts are used on one side. The torque specification is adjusted according to the track requirements, the number of nuts 6 fixed, the distance between the two rails, and the size of the bolt clamps 4 are adjusted. Lateral reinforcement is carried out on the basis of bonding to ensure the overall connection strength. The outer surface of the bolt clamps 4 is covered with a rubber plate to insulate it from the first dovetail joint rail 1 and the second dovetail joint rail 2.

[0030] like Figure 6As shown, a novel type of adhesive-bonded rail is described. As the wheel passes through the 8 mm adhesive area of ​​the dovetail end adhesive plate 3, the wheel gradually transitions smoothly from area B of the dovetail end adhesive plate 3 to area C of the dovetail end adhesive plate 3. The vertical load also smoothly transitions from the left end to the right end, avoiding the problem of the dovetail end adhesive plate 3 bearing the vertical load alone, and thus avoiding the problem of deformation due to uneven force distribution.

[0031] Working principle: By setting up a first dovetail adhesive joint rail 1 and a second dovetail adhesive joint rail 2 that can be adapted to the dovetail end adhesive joint plate 3, the traditional linear adhesive joint area can be replaced. When the wheel passes over it, it can be evenly compressed at the same time, thereby reducing local load and reducing deformation and damage of the adhesive joint area.

[0032] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A novel type of adhesive-bonded rail, characterized in that, It includes a dovetail end adhesive plate (3), one end of which is fixedly connected to a first dovetail adhesive rail (1), and the other end of which is fixedly connected to a second dovetail adhesive rail (2). The outer walls of the first dovetail adhesive rail (1) and the second dovetail adhesive rail (2) are provided with reinforcing components.

2. The novel adhesive-bonded rail according to claim 1, characterized in that, The first dovetail adhesive rail (1) has an attachment groove (10) at one end near the dovetail end adhesive plate (3), and the shape of the attachment groove (10) is adapted to the center of the outer wall of the dovetail end adhesive plate (3).

3. The novel adhesive-bonded rail according to claim 2, characterized in that, The second dovetail adhesive rail (2) has a raised edge (20) at one end near the dovetail end adhesive plate (3), and the shape of the raised edge (20) is adapted to the center of the inner wall of the dovetail end adhesive plate (3).

4. The novel adhesive-bonded rail according to claim 3, characterized in that, The dovetail end adhesive plate (3) is connected to the first dovetail adhesive rail (1) and the second dovetail adhesive rail (2) by adhesive bonding.

5. The novel adhesive-bonded rail according to claim 4, characterized in that, Both the first dovetail adhesive joint (1) and the second dovetail adhesive joint (2) have threaded grooves on their front and back sides.

6. The novel adhesive-bonded rail according to claim 5, characterized in that, The reinforcement component includes two bolt clamps (4), which are attached to the front and back of the first dovetail joint rail (1) and the second dovetail joint rail (2).

7. The novel adhesive-bonded rail according to claim 6, characterized in that, The reinforcing assembly includes a bolt (5) and a nut (6), the bolt (5) passing through the two bolt clamps (4) and extending to the internal threaded connection of the threaded groove.

8. The novel adhesive-bonded rail according to claim 7, characterized in that, The nut (6) is threaded onto the outside of the bolt (5).

9. The novel adhesive-bonded rail according to claim 8, characterized in that, The first dovetail joint (1) and the second dovetail joint (2) are located on the same horizontal line, and the straightness of the first dovetail joint (1) and the second dovetail joint (2) is less than 0.2 mm / m.

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