Seamless track stress uniformizing device

Abstract

The utility model relates to the technical field of seamless tracks, in particular to a stress uniformizing device for a seamless track. According to the technical scheme, a plurality of evenly-distributed sleepers slide in the inner wall of a first connecting groove through first connecting blocks, second connecting blocks slide in the inner wall of a second connecting groove, and the inner wall of the first connecting groove has a certain limiting effect on the inner wall of the second connecting groove; certain relative movement between the first half rail and the second half rail can facilitate certain stress relief of the rail, when relative movement between the first half rail and the second half rail occurs, relative movement between the limiting rod and the inner wall of the limiting groove occurs, at the moment, the distance between the first half rail and the second half rail can be further prevented from being increased, and the service life of the rail is prolonged. And compared with rectangular corners, the limiting rods and the limiting grooves with the arc-shaped corners can improve the deformation resistance of the rail, so that the situation that the distance between the first half rail and the second half rail is increased due to deformation can be avoided, and the effect of ensuring uniform stress dispersion is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of seamless lines, in particular to a stress equalization device for seamless lines. Background Art

[0002] The seamless line is the most prominent improvement and innovation in the track structure in the 20th century. The emergence of the seamless line not only corrects and enriches the design and calculation content of the track structure in theory, but also eliminates the rail joints in structure, greatly reduces line diseases, greatly reduces the labor intensity of line maintenance personnel, reduces the impact and vibration of trains in the joint area, and brings many benefits to train operation and driving safety. With the great development of railways, the seamless line has become an indispensable form of track structure. Under normal circumstances, after the seamless line is locked at the neutral temperature, the fixed area is subjected to tension or compression as the rail temperature changes. The stress at various locations is uniform and consistent, which can meet the requirements of track strength and stability, and will not cause rail expansion and breakage. When the corresponding rail can complete the straight travel of the train while supporting the turning of the train, the rail at this location is The rail is not only subjected to downward stress, but also to lateral stress. In the early stage of rail installation and the first use, the rail is likely to be subjected to excessive downward stress or lateral stress. At this time, stress release or adjustment must be performed to reduce the stress concentration at a certain point of the rail. A rail expansion adjuster is needed. Half rails are combined into a complete rail at the joints of the rails. When stress changes, the two half rails undergo a certain relative displacement to avoid rail breakage. However, in actual use, rail expansion adjusters of similar structure still have many defects, such as: there is a lack of a limiting mechanism between the two half rails. When the train is running, it is easy to exert pressure on the track, causing the track to deform to a certain extent, affecting the relative displacement between the two half rails and affecting stress release. Therefore, it is necessary to design a seamless line stress uniformization device. Utility Model Content

[0003] The utility model aims to provide a seamless line stress equalization device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a seamless line stress uniformization device, comprising a plurality of evenly distributed sleepers, a fixed groove is provided on the top of the sleepers, a first track is placed on the top of one of the fixed grooves, the first track comprises a first half-track, a second track is placed on the top of another fixed groove, the second track comprises a second half-track, the first half-track and the second half-track are in contact and form a sliding fit, a first connecting block is fixedly connected to one side of the first half-track, a first connecting groove is provided on one side of the second half-track, a sliding fit is formed between the inner wall of the first connecting groove and the first connecting block, the first connecting block slides in the inner wall of the first connecting groove, the second connecting block slides in the inner wall of the second connecting groove, and the inner wall of the first connecting groove contacts the second connecting groove The inner wall of the groove has a certain limiting effect. A certain relative movement between the first half-rail and the second half-rail can help the track to release a certain amount of stress. When the first half-rail and the second half-rail move relative to each other, the limiting rod and the inner wall of the limiting groove move relative to each other. At this time, the increase in the spacing between the first half-rail and the second half-rail can be further avoided. Moreover, the limiting rod and the limiting groove with arc-shaped corners can improve the deformation resistance of the track compared with the rectangular corners. When installing the track, a suitable installation port can be selected according to the stress dispersion needs, and the seat plate and the bottom pad are fixed to the sleeper with the installation rod, and then the threaded rod is rotated to move the fixing frame downward to fix the track. Therefore, the increase in the spacing between the first half-rail and the second half-rail due to deformation can be avoided, thereby achieving the effect of ensuring uniform stress dispersion.

[0005] A second connecting block is fixedly connected to one side of the second half-rail, a second connecting groove is opened on one side of the first half-rail, a sliding fit is formed between the inner wall of the second connecting groove and the second connecting block, and the second connecting block is arranged to slide in the inner wall of the second connecting groove and cooperate with the first connecting block and the inner wall of the first connecting groove, thereby further avoiding a change in the spacing between the first half-rail and the second half-rail.

[0006] Preferably, the cross-section of the first connecting block and the inner wall cross-section of the first connecting groove are T-shaped, and the inner wall of the second connecting groove and the cross-section of the second connecting block are T-shaped. The T-shaped structure design can form a limit between the connecting groove and the connecting block to avoid separation between the two.

[0007] Preferably, a plurality of evenly distributed limit rods are fixedly connected to one side of the first half-rail and one end of the second half-rail, and limit grooves corresponding to the limit rods are provided at one end of the first rail and the second rail, and a sliding fit is formed between the inner wall of the limit groove and the limit rod. The limit rod can slide in the inner wall of the limit groove, thereby increasing the limitation of the first half-rail and the second half-rail and further avoiding an increase in the distance between the two.

[0008] Preferably, the inner wall corners of the limiting groove are in an arc-shaped structure, and the edges and corners of the limiting rod are in fit with the inner wall corners of the limiting groove. The arc-shaped structure design can increase the deformation resistance of the track and the limiting rod compared to rectangular corners.

[0009] Preferably, a bottom pad is fixedly connected to the top inner wall of the fixing groove, a seat plate is provided on the top of the bottom pad, the first track and the second track are placed on the inner wall of the seat plate, and the setting of the seat plate can cooperate with the bottom pad to complete the installation operation of the track.

[0010] Preferably, fixing openings are provided on the outer walls on both sides of the seat plate, and a threaded hole extending into the fixing opening is provided on the top outer wall of the seat plate, and the inner wall of the threaded hole is connected to a threaded rod by a thread, and the bottom of the threaded rod is rotatably connected to a fixing frame by a bearing, and the fixing frame is in contact with the top inner walls of the first rail and the second rail, and the fixing frame is arranged to slide in the inner wall of the fixing opening, and the threaded rod can be rotated to displace in the inner wall of the threaded hole, and the fixing frame can fix the rails.

[0011] Preferably, the top of the seat plate is provided with a plurality of evenly distributed mounting openings that penetrate the bottom pad, and the inner wall of the mounting opening is threadedly connected with a mounting rod. The mounting rod can be arranged so that a suitable mounting opening can be selected according to the need for stress dispersion, and the seat plate can be fixed by rotating the mounting rod into the mounting opening.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The first connecting block slides in the inner wall of the first connecting groove, and the second connecting block slides in the inner wall of the second connecting groove, and the inner wall of the first connecting groove has a certain limiting effect on the inner wall of the second connecting groove. A certain relative movement between the first half-rail and the second half-rail can help the track to release a certain stress. When the first half-rail and the second half-rail move relative to each other, the limiting rod and the inner wall of the limiting groove move relative to each other, and the increase in the spacing between the first half-rail and the second half-rail can be further avoided. In addition, the limiting rod and the limiting groove with arc-shaped corners can improve the deformation resistance of the track compared with the rectangular corners. When installing the track, a suitable installation port can be selected according to the stress dispersion requirement, and the seat plate and the bottom pad are fixed to the sleeper with the installation rod, and then the threaded rod is rotated to move the fixing frame downward to fix the track. Therefore, the increase in the spacing between the first half-rail and the second half-rail due to deformation can be avoided, and the effect of ensuring uniform stress dispersion can be achieved.

[0014] 2. The seat plate can be used in conjunction with the bottom pad to complete the installation of the track; the fixing frame can slide in the inner wall of the fixing port, and the threaded rod can be rotated to move in the inner wall of the threaded hole, and the fixing frame can fix the track at this time; the installation rod can be used to select a suitable installation port according to the need for stress dispersion, and the installation rod can be rotated into the installation port to fix the seat plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a partial cross-sectional structural schematic diagram of the utility model;

[0017] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0018] Figure 4 for Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of the utility model highlighting the threaded rod;

[0020] Figure 6 for Figure 2 Schematic diagram of the enlarged structure at point C in the middle.

[0021] In the figure: 1, sleeper; 2, fixing groove; 3, first track; 4, first half track; 5, second track; 6, second half track; 7, first connecting block; 8, first connecting groove; 9, second connecting block; 10, second connecting groove; 11, limiting groove; 12, limiting rod; 13, bottom pad; 14, seat plate; 15, threaded hole; 16, threaded rod; 17, fixing port; 18, fixing frame; 19, mounting port; 20, mounting rod. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] Embodiment 1

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the stress uniforming device for seamless railway proposed by the utility model comprises a plurality of evenly distributed sleepers 1, a fixing groove 2 is provided on the top of the sleeper 1, a first track 3 is placed on the top of one of the fixing grooves 2, the first track 3 comprises a first half-track 4, a second track 5 is placed on the top of another fixing groove 2, the second track 5 comprises a second half-track 6, the first half-track 4 and the second half-track 6 are in contact with each other and form a sliding fit, a first connecting block 7 is fixedly connected to one side of the first half-track 4, a first connecting groove 8 is provided on one side of the second half-track 6, a sliding fit is formed between the inner wall of the first connecting groove 8 and the first connecting block 7, a second half-track 6 is fixedly connected to one side of the first half-track 4 A second connecting groove 10 is provided on one side, and a sliding fit is formed between the inner wall of the second connecting groove 10 and the second connecting block 9. The cross-section of the first connecting block 7 and the inner wall cross-section of the first connecting groove 8 are T-shaped structures. The inner wall of the second connecting groove 10 and the cross-section of the second connecting block 9 are T-shaped structures. One side of the first half-rail 4 and one end of the second half-rail 6 are fixedly connected with a plurality of evenly distributed limiting rods 12. Limiting grooves 11 corresponding to the limiting rods 12 are provided at one end of the first track 3 and the second track 5. A sliding fit is formed between the inner wall of the limiting groove 11 and the limiting rod 12. The inner wall corner of the limiting groove 11 is an arc-shaped structure, and the edges and corners of the limiting rod 12 fit with the inner wall corner of the limiting groove 11.

[0025] The working principle of the seamless track stress uniformization device based on the first embodiment is: the first connecting block 7 slides in the inner wall of the first connecting groove 8, the second connecting block 9 slides in the inner wall of the second connecting groove 10, and the inner wall of the first connecting groove 8 has a certain limiting effect on the inner wall of the second connecting groove 10. A certain relative movement between the first half-rail 4 and the second half-rail 6 can help the track to release a certain stress. When the first half-rail 4 and the second half-rail 6 move relative to each other, the limiting rod 12 moves relative to the inner wall of the limiting groove 11, which can further avoid The distance between the first half rail 4 and the second half rail 6 is prevented from increasing, and the limiting rod 12 and the limiting groove 11 with arc-shaped corners can improve the anti-deformation ability of the rail compared with the rectangular corners. When installing the rail, a suitable installation port 19 can be selected according to the stress dispersion requirement, and the seat plate 14 and the bottom pad 13 are fixed to the sleeper 1 by the installation rod 20, and then the threaded rod 16 is rotated and the fixing frame 18 is moved down to fix the rail. Therefore, the distance between the first half rail 4 and the second half rail 6 caused by deformation can be avoided, and the effect of ensuring uniform stress dispersion can be achieved;

[0026] The second connecting block 9 can slide in the inner wall of the second connecting groove 10 to cooperate with the first connecting block 7 and the inner wall of the first connecting groove 8, thereby further avoiding the change of the distance between the first half-rail 4 and the second half-rail 6;

[0027] The cross section of the first connecting block 7 in a T-shaped structure, the cross section of the inner wall of the first connecting groove 8, the inner wall of the second connecting groove 10, and the cross section of the second connecting block 9 can form a limit between the connecting groove and the connecting block, thereby preventing the two from being separated;

[0028] The limiting rod 12 can slide in the inner wall of the limiting groove 11, thereby increasing the limiting of the first half rail 4 and the second half rail 6, and further preventing the distance between the two from increasing;

[0029] The inner wall corner of the limiting groove 11 with an arc-shaped structure can increase the deformation resistance of the track and the limiting rod 12 compared with the rectangular corner.

[0030] Embodiment 2

[0031] like Figure 1 , Figure 2 , Figure 4 As shown, the seamless line stress uniformization device proposed by the utility model is compared with the first embodiment. The top inner wall of the fixing groove 2 of this embodiment is fixedly connected with a bottom pad 13, and the top of the bottom pad 13 is provided with a seat plate 14. The first track 3 and the second track 5 are placed on the inner wall of the seat plate 14. The outer walls of both sides of the seat plate 14 are provided with fixing openings 17. The top outer wall of the seat plate 14 is provided with a threaded hole 15 extending into the fixing opening 17. The inner wall of the threaded hole 15 is threadedly connected with a threaded rod 16. The bottom of the threaded rod 16 is rotatably connected with a fixing frame 18 through a bearing. The fixing frame 18 is in contact with the top inner wall of the first track 3 and the second track 5. The top of the seat plate 14 is provided with a plurality of evenly distributed installation openings 19 that penetrate the bottom pad 13, and the inner wall of the installation opening 19 is threadedly connected with a mounting rod 20.

[0032] The seat plate 14 can be used in conjunction with the bottom pad 13 to complete the installation of the track;

[0033] The fixing frame 18 can slide in the inner wall of the fixing opening 17, and the threaded rod 16 can be rotated to move in the inner wall of the threaded hole 15, and the fixing frame 18 can fix the track;

[0034] Through the installation rod 20 , a suitable installation opening 19 can be selected according to the need for stress dispersion, and the seat plate 14 can be fixed by rotating the installation rod 20 into the installation opening 19 .

[0035] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A stress uniforming device for a seamless railway line, comprising a plurality of evenly distributed sleepers (1), wherein a fixing groove (2) is provided on the top of each sleeper (1), and wherein: A first track (3) is placed on the top of one of the fixed grooves (2), the first track (3) comprising a first half track (4); a second track (5) is placed on the top of the other fixed groove (2), the second track (5) comprising a second half track (6); the first half track (4) and the second half track (6) are in contact with each other and form a sliding fit; a first connecting block (7) is fixedly connected to one side of the first half track (4); a first connecting groove (8) is provided on one side of the second half track (6); a sliding fit is formed between the inner wall of the first connecting groove (8) and the first connecting block (7).

2. The seamless line stress equalization device according to claim 1, characterized in that: A second connecting block (9) is fixedly connected to one side of the second half rail (6), a second connecting groove (10) is provided on one side of the first half rail (4), and a sliding fit is formed between the inner wall of the second connecting groove (10) and the second connecting block (9).

3. The stress equalization device for seamless line according to claim 2 is characterized in that: The cross section of the first connection block (7) and the cross section of the inner wall of the first connection groove (8) are in a T-shaped structure, and the inner wall of the second connection groove (10) and the cross section of the second connection block (9) are in a T-shaped structure.

4. The stress equalization device for seamless line according to claim 1 is characterized in that: A plurality of evenly distributed limiting rods (12) are fixedly connected to one side of the first half rail (4) and one end of the second half rail (6); limiting grooves (11) corresponding to the limiting rods (12) are provided at one end of each of the first rail (3) and the second rail (5); and a sliding fit is formed between the inner walls of the limiting grooves (11) and the limiting rods (12).

5. The stress equalization device for seamless line according to claim 4 is characterized in that: The inner wall corner of the limiting groove (11) is in an arc-shaped structure, and the corner of the limiting rod (12) fits with the inner wall corner of the limiting groove (11).

6. The stress equalization device for seamless line according to claim 1 is characterized in that: A bottom pad (13) is fixedly connected to the top inner wall of the fixing groove (2), a seat plate (14) is arranged on the top of the bottom pad (13), and the first track (3) and the second track (5) are placed on the inner wall of the seat plate (14).

7. The stress equalization device for seamless line according to claim 6 is characterized in that: The outer walls on both sides of the seat plate (14) are provided with fixing openings (17); the outer wall on the top of the seat plate (14) is provided with a threaded hole (15) extending into the fixing opening (17); the inner wall of the threaded hole (15) is connected to a threaded rod (16) via a thread; the bottom of the threaded rod (16) is rotatably connected to a fixing frame (18) via a bearing; the fixing frame (18) is in contact with the inner walls of the tops of the first track (3) and the second track (5).

8. The stress equalization device for seamless line according to claim 7 is characterized in that: The top of the seat plate (14) is provided with a plurality of evenly distributed mounting openings (19) that penetrate the bottom pad (13), and the inner wall of the mounting opening (19) is connected with a mounting rod (20) via a thread.

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