Shoulder stop type large tuning high volume fastener structure and traffic track

Abstract

The application discloses a shoulder type large adjustment high-quantity fastener structure and a traffic track. The fastener structure comprises a frog sleeper, which is used for supporting the fastener structure and mounting a steel rail, and a sunk groove is formed in the frog sleeper; a shoulder pad is embedded in the sunk groove of the frog sleeper, and a blocking part is symmetrically distributed on the surface of the shoulder pad; a first fastener assembly is arranged on the shoulder pad and used for mounting the steel rail and fastening the steel rail on both sides of the first fastener assembly; an adjustment baffle seat comprises a buckling part, the height of the buckling part is matched with the height of the edge of the first fastener assembly, and the outer contour of the adjustment baffle seat is matched with the inner wall contour of the blocking part; and a second fastener assembly is arranged between the adjustment baffle seat and the first fastener assembly and is buckled on the buckling part and the edge of the first fastener assembly and is used for transmitting the lateral force received by the first fastener assembly to the blocking part.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of railway traffic, in particular, to a shoulder blocking type large height adjustment fastener structure and a traffic track. BACKGROUND

[0002] The connection between the rail and the turnout sleeper is realized through a fastener system. In a ballast rail structure, the fastener system combines the rail and the turnout sleeper into a track panel structure, bears the train load, and resists longitudinal and lateral forces. In a ballastless rail structure, the height adjustment requirement of the fastener system is -4mm~+26mm. When the height adjustment amount is large, the stress condition of the bolt in the existing fastener system becomes very unfavorable, and the bolt is easily damaged under the action of the lateral force. When the subsidence amount of the ballastless rail foundation exceeds 26mm, the height adjustment requirement of the fastener system cannot be met.

[0003] In summary, the existing fastener system has at least the following shortcomings,

[0004] (1) In the existing fastener system, the axial force on the bolt is too large, which easily causes loosening, so that the bolt and the embedded sleeve cannot be well matched, a good stress state cannot be achieved, and the bolt pair is damaged in advance.

[0005] (2) After the height adjustment amount of the existing fastener system is increased, the bolt is subjected to a large lateral force, which causes the bolt to break. SUMMARY

[0006] The present application provides a shoulder blocking type large height adjustment fastener structure and a traffic track to solve the technical problem that the bolt pair is easily damaged by the lateral force when the height adjustment amount of the existing fastener structure is increased.

[0007] The technical scheme adopted by the present application is as follows:

[0008] A shoulder blocking type large height adjustment fastener structure is applied to a traffic track, and the traffic track comprises a rail. The fastener structure comprises:

[0009] a turnout sleeper for supporting the fastener structure and for mounting the rail, wherein a sink groove is formed in the turnout sleeper;

[0010] a shoulder blocking pad plate for being embedded in the sink groove of the turnout sleeper, wherein a blocking part in symmetrical distribution is formed on both sides of the surface of the shoulder blocking pad plate;

[0011] a first fastener assembly arranged on the shoulder blocking pad plate and used for mounting the rail and for clamping the rail on both sides of the first fastener assembly;

[0012] a height adjustment blocking plate seat comprising a clamping part, wherein the height of the clamping part matches the height of the edge of the first fastener assembly, and the outer contour of the height adjustment blocking plate seat matches the inner wall contour of the blocking part.

[0013] A second fastener assembly is arranged between the height-adjusting baffle seat and the first fastener assembly and is fastened to the edge of the first fastener assembly and the fastening portion respectively to transfer the lateral force received by the first fastener assembly to the blocking portion.

[0014] As a further improvement of the above technical solution, the first fastener assembly comprises a fixing base plate for mounting the steel rail, a height-adjusting base plate arranged between the fixing base plate and the shoulder baffle plate, and a sleeper bolt for connecting to the sleeper after sequentially penetrating through the fixing base plate, the height-adjusting base plate and the shoulder baffle plate to fix the height-adjusting base plate and the fixing base plate, and the height-adjusting base plate is used to control the height of the steel rail.

[0015] As a further improvement of the above technical solution, the first fastener assembly further comprises a first bolt, a bolt seat, a gauge block and a first elastic strip, the bolt seat is arranged on the fixing base plate and located at one side of the steel rail, the gauge block is fastened to the side edge of the steel rail, and the first bolt is used to connect the bolt seat to tighten the first elastic strip so that the two ends of the first elastic strip are tightly pressed on the bolt seat and the gauge block respectively to fix the steel rail.

[0016] As a further improvement of the above technical solution, the first fastener assembly further comprises a buffer positioning sleeve, a steel sleeve and an inner sleeve, which are sequentially sleeved on the sleeper bolt to form a buffer when the sleeper bolt bears a shear force.

[0017] As a further improvement of the above technical solution, an elastic base plate is further arranged between the height-adjusting base plate and the fixing base plate for buffering.

[0018] As a further improvement of the above technical solution, the second fastener assembly comprises a second bolt, a second elastic strip and a gauge baffle, the two sides of the gauge baffle are fastened to the fastening portion and the edge of the fixing base plate respectively, and the second bolt is used to tighten the second elastic strip and the gauge baffle so that the two sides of the gauge baffle are fastened tightly.

[0019] As a further improvement of the above technical solution, the two end faces of the first side of the gauge baffle are respectively formed with a first inner arc surface and a first outer arc surface, the first inner arc surface is used to cooperate with the second elastic strip, and the first outer arc surface is used to cooperate with the fastening portion; the end face of the second side of the gauge baffle is formed with a second inner arc surface for fastening to the edge of the fixing base plate.

[0020] As a further improvement of the above technical solution, the first fastener assembly further comprises a first limiting plate, and the pressing force of the first bolt acts on the first elastic strip through the first limiting plate.

[0021] As a further improvement of the above technical solution, the inner wall of the blocking part is at a preset angle with the surface of the shoulder pad.

[0022] According to another aspect of the present application, there is also provided a traffic track applying the shoulder type large gauge high amount fastener structure as described above.

[0023] The present application has the following beneficial effects: the fastener structure is provided with a sink in the frog sleeper to enable the lateral force to be transmitted to the frog sleeper, and the shoulder pad is embedded in the sink of the frog sleeper, and the second clamping assembly is clamped between the edge of the first clamping assembly and the blocking part of the shoulder pad, so that the lateral force on the rail is transmitted to the frog sleeper through the first clamping assembly, the second clamping assembly and the blocking part, and the frog sleeper bears the lateral force of the rail, effectively reducing the shear force on the bolt pair in the large gauge high amount state, avoiding damage to the bolt, improving the service life of the bolt pair and the stability of the fastener structure; the blocking part is provided with a gauge high amount baffle seat, the height of the clamping part of which matches the height of the edge of the first fastener assembly, i.e. the height of the gauge high amount baffle seat is selected according to different gauge high amounts to match the height of the two ends of the first fastener assembly, ensuring stable installation, and also keeping the fastener structure and the bolt pair in a good stress state, ensuring the clamping effect and force transmission effect in different gauge high amount states, especially in the large gauge high amount state, and further preventing damage to the bolt pair; and the outer contour of the gauge high amount baffle seat matches the inner wall contour of the blocking part to improve the force transmission effect.

[0024] In addition to the objects, features, and advantages described above, the present application has other objects, features, and advantages. The present application will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, illustrate embodiments of the present application and assist in the explanation of the present application. In the drawings:

[0026] Figure 1 is a structural schematic diagram of a preferred embodiment of the present application;

[0027] Figure 2 is a structural schematic diagram of a preferred embodiment of the shoulder pad of the present application;

[0028] Figure 3 is a structural schematic diagram of a preferred embodiment of the gauge baffle of the present application;

[0029] Figure 4 is a structural schematic diagram of a preferred embodiment of the gauge high amount baffle seat of the present application;

[0030] 1, frog tie 2, fixed base plate 3, rail 4, second elastic strip 5, second bolt 6, second limiting plate 7, nut 8, gauge block 9, elastic base plate 10, gauge baffle 101, first inner arc surface 102, first outer arc surface 103, second inner arc surface 104, first through hole 11, height adjustment baffle seat 111, buckling part 12, shoulder pad 121, blocking part 122, inclined groove 123, second through hole 13, frog tie bolt 14, bolt seat 15, height adjustment pad 16, buffer positioning sleeve 17, steel sleeve 18, inner sleeve. DETAILED DESCRIPTION

[0031] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0032] Reference Figures 1 to 4 , the preferred embodiment of the present application provides a shoulder type large height adjustment fastener structure,

[0033] As shown in Figure 1 and Figure 2 , the shoulder type large height adjustment fastener structure of the present embodiment is applied to a traffic track, and the traffic track includes a rail 3. The fastener structure includes:

[0034] A frog tie 1 is used as a support of the fastener structure and is used for mounting the rail 3. A sink is formed on the frog tie 1;

[0035] A shoulder pad 12 is embedded in the sink of the frog tie 1. Symmetrical blocking parts 121 are formed on the surface of the shoulder pad 12;

[0036] A first fastener assembly is arranged at a middle position of the shoulder pad 12. The middle position of the first fastener assembly is used for mounting the rail 3. The first fastener assembly is also used for clamping the rail 3 mounted on the first fastener assembly on both sides;

[0037] A height adjustment baffle seat 11 includes a buckling part 111. The height of the buckling part 111 matches the height of the edge of the first fastener assembly. The outer contour of the height adjustment baffle seat 11 matches the inner wall contour of the blocking part 121;

[0038] A second fastener assembly is arranged between the height adjustment baffle seat 11 and the first fastener assembly and is buckled on the edge of the first fastener assembly and the buckling part 111 respectively. The second fastener assembly and the height adjustment baffle seat 11 are symmetrically arranged on both sides of the first fastener assembly. The second fastener assembly is used for transmitting the lateral force received by the first fastener assembly to the blocking part 121;

[0039] Further, the inner wall of the blocking part 121 is at a preset angle with the surface of the shoulder pad 12, that is, it is inclined at a certain angle, so that it can bear both lateral force and axial force, effectively reducing the stress on the bolt pair and avoiding damage.

[0040] It can be understood that the buckle structure is provided with a sink in the frog 1 to enable the lateral force to be transmitted to the frog 1, and the shoulder pad 12 is embedded in the sink of the frog 1, and the second buckle assembly is buckled between the edge of the first buckle assembly and the blocking part 121 of the shoulder pad 12, so that the lateral force on the rail 3 is transmitted to the frog 1 through the first buckle assembly, the second buckle assembly, and the blocking part 121, and the frog 1 bears the lateral force on the rail 3, effectively reducing the shear force on the bolt pair in the large height adjustment state, avoiding damage to the bolt, improving the service life of the bolt and the stability of the buckle structure; the blocking part 121 is provided with the height adjustment baffle seat 11, the height of the buckle part 111 of which matches the height of the edge of the first buckle assembly, that is, the height adjustment baffle seat 11 of the corresponding height is selected according to different height adjustment amounts to match the heights of the two ends of the first buckle assembly, so as to ensure stable installation and ensure the buckling effect and force transmission effect in the state of different height adjustments, especially in the state of large height adjustment; and the outer contour of the height adjustment baffle seat 11 matches the inner wall contour of the blocking part 121 to improve the force transmission effect.

[0041] In the embodiment, the first buckle assembly includes the fixed pad 2 for mounting the rail 3, the height adjustment pad 15 arranged between the fixed pad 2 and the shoulder pad 12, and the frog bolt 13 for connecting to the frog 1 in sequence after passing through the second through hole 123 of the fixed pad 2, the height adjustment pad 15, and the shoulder pad 12 to fix the height adjustment pad 15 and the fixed pad 2, and the height adjustment pad 15 is used to control the height of the rail 3 and adapt to the system height adjustment by selecting to install height adjustment pads 15 of different thicknesses; in some embodiments, a plurality of height adjustment pads 15 of the same thickness can also be installed to adapt to the system height adjustment.

[0042] Specifically, the first buckle assembly further includes a first bolt (T-shaped bolt), a bolt seat 14, a gauge block 8, and a first elastic strip, the bolt seat 14 is arranged on the fixed pad 2 and located on one side of the rail 3, the gauge block 8 is buckled to the side edge of the rail 3, and the first bolt is used to connect the bolt seat 14 to fasten the first elastic strip so that the two ends of the first elastic strip are pressed tightly on the bolt seat 14 and the gauge block 8 respectively to fix the rail 3. The structure and working principle of the first bolt, the first elastic strip, and other components have been recorded in detail in the prior art, and they can be implemented by referring to the prior art. On the other hand, an arc-shaped groove is formed in the bolt seat to embed the first elastic strip, so that the buckling is more stable and the fastening effect is ensured.

[0043] In the embodiment, the first fastener assembly further comprises a buffer positioning sleeve 16, a steel sleeve 17 and an inner sleeve 18, which are sequentially sleeved on the frog bolt 13 to form a buffer when the frog bolt 13 bears a shear force, further reduce the influence of the shear force on the bolt pair in the system, improve the service life and reduce the maintenance cycle.

[0044] In the embodiment, an elastic pad 9 is further arranged between the height adjustment pad 15 and the fixed pad 2 to realize buffering and reduce rigid contact.

[0045] In the embodiment, the second fastener assembly comprises a second bolt 5 (T-shaped bolt), a second elastic strip 4 and a gauge baffle 10, the two sides of the gauge baffle 10 are respectively buckled on the buckling part 111 and the edge of the fixed pad 2, and the second bolt 5 is used to fasten the second elastic strip 4 and the gauge baffle 10 so that the two sides of the gauge baffle 10 are buckled and fastened on the fixed pad 2 and the height adjustment baffle seat 11 respectively.

[0046] Specifically, the second fastener assembly further comprises a cover nut 7 connected with the second bolt 5, the gauge baffle 10 is provided with a first through hole 104 for the second bolt 5 to pass through, the stop shoulder pad 12 is provided with a beveled groove 122 corresponding to the installation position of the second bolt 5 to cooperate with the installation of the second bolt 5, and the second bolt 5 cooperates with the beveled groove 122 to pass through the gauge baffle 10, the second elastic strip 4 and the second limiting plate 6 and is connected and fixed with the nut 7.

[0047] In some embodiments, the small end of the second bolt 5 can pass through the first through hole 104 provided on the second elastic strip 4 and the gauge baffle 10 and be threadedly connected with the frog bolt.

[0048] In the embodiment, the two end faces of the first side of the gauge baffle 10 are respectively formed with a first inner arc surface 101 and a first outer arc surface 102, the first inner arc surface 101 is used to cooperate with the second elastic strip 4, and the first outer arc surface 102 is used to cooperate with the buckling part 111; the end face of the second side of the gauge baffle 10 is formed with a second inner arc surface 103 used to be buckled on the edge of the fixed pad 2, and after being fastened by the second bolt 5 and the second elastic strip 4, the overall elasticity and stability of the fastener structure are increased, the two sides of the gauge baffle can bear the axial force to ensure buckling and fastening and can transmit the lateral force.

[0049] In the embodiment, the first fastener assembly further comprises a first limiting plate, which is used to make the pressing force of the first bolt act on the first elastic strip through the first limiting plate, facilitate the axial force transmission of the first bolt and ensure the fastening effect; similarly, the second fastener assembly further comprises a second limiting plate 6, which is used to make the pressing force of the second bolt 5 act on the second elastic strip 4 through the second limiting plate 6, and the effect is the same as that of the first limiting plate, which facilitates the axial force transmission of the second bolt 5 and ensures the fastening effect.

[0050] In another aspect, the embodiment also provides a traffic track applying the above-mentioned fastener structure.

[0051] The above merely provides the preferred embodiment of the present application, but not for limiting the present application. For the person skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A shoulder stop type large gauge fastener structure applied to a traffic track including a rail (3), characterized in that, The fastener structure comprises: a frog sleeper (1) for supporting the fastener structure and for mounting the rail (3), the frog sleeper (1) being provided with a sunk groove; a shoulder pad (12) for being embedded in the sunk groove of the frog sleeper (1), the shoulder pad (12) being provided with symmetrically distributed blocking portions (121) on both sides of the surface thereof; a first fastener assembly arranged on the shoulder pad (12) and used for mounting the rail (3) and for fastening the rail (3) mounted on the first fastener assembly on both sides thereof; a height-adjusting baffle seat (11) comprising a clamping portion (111) having a height matching that of the edge of the first fastener assembly, the height-adjusting baffle seat (11) having an outer contour matching that of the inner wall of the blocking portion (121); a second fastener assembly arranged between the height-adjusting baffle seat (11) and the first fastener assembly and used for being clamped on the edge of the first fastener assembly and the clamping portion (111) respectively so as to transmit the lateral force received by the first fastener assembly to the blocking portion (121); the first fastener assembly comprises a fixed pad (2) for mounting the rail (3), a height-adjusting pad (15) arranged between the fixed pad (2) and the shoulder pad (12), and a frog bolt (13) for being sequentially threaded through the fixed pad (2), the height-adjusting pad (15) and the shoulder pad (12) and then connected to the frog sleeper (1) so as to fix the height-adjusting pad (15) and the fixed pad (2), the height-adjusting pad (15) being used for controlling the height of the rail (3); the first fastener assembly further comprises a first bolt, a bolt seat (14), a gauge block (8) and a first elastic strip, the bolt seat (14) being arranged on the fixed pad (2) and located at one side of the rail (3), the gauge block (8) being clamped on the side edge of the rail (3), the first bolt being used for connecting the bolt seat (14) so as to fasten the first elastic strip, so that both ends of the first elastic strip are pressed against the bolt seat (14) and the gauge block (8) respectively, thereby fixing the rail (3).

2. The shoulder stop type large tuning high mass fastener structure according to claim 1, characterized by, the first fastener assembly further comprises a buffer positioning sleeve (16), a steel sleeve (17) and an inner sleeve (18) for being sequentially sleeved on the frog bolt (13) so as to form a buffer when the frog bolt (13) bears a shearing force.

3. The shoulder stop type large tuning high mass fastener structure according to claim 1, wherein an elastic pad (9) is further arranged between the height-adjusting pad (15) and the fixed pad (2) for buffering.

4. The shoulder stop type large tuning high mass fastener structure according to any one of claims 1 to 3, characterized in that, the second fastener assembly comprises a second bolt (5), a second elastic strip (4) and a gauge baffle (10), both sides of the gauge baffle (10) being clamped on the clamping portion (111) and the edge of the fixed pad (2) respectively, the second bolt (5) being used for fastening the second elastic strip (4) and the gauge baffle (10) so that both sides of the gauge baffle (10) are clamped and fastened.

5. The shoulder stop type large tuning high mass fastener structure according to claim 4, wherein The first end surface of the first side of the gauge baffle (10) is respectively formed with a first inner arc surface (101) and a first outer arc surface (102), the first inner arc surface (101) is used for cooperating with the second elastic strip (4), and the first outer arc surface (102) is used for cooperating with the buckling part (111); the end surface of the second side of the gauge baffle (10) is formed with a second inner arc surface (103) for buckling on the edge of the fixed base plate (2).

6. The shoulder block high profile fastener structure of claim 1 wherein, The first fastener assembly further comprises a first limiting plate for enabling the pressing force of the first bolt to act on the first elastic strip through the first limiting plate.

7. The shoulder block high profile fastener structure of claim 1 wherein, The inner wall of the blocking part (121) and the surface of the shoulder baffle plate (12) are at a preset angle.

8. A traffic track, characterized in that The shoulder type large gauge high amount fastener structure has the advantages that the shoulder type large gauge high amount fastener structure is simple in structure, convenient to use, and convenient to install.

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