Fastener assembly

Abstract

The utility model provides a fastener assembly. The fastener assembly comprises an anchor bolt, a nut, an elastic strip, a gauge apron and a sleeper. A rail bearing groove is formed in the upper surface of the sleeper, and the steel rail is arranged in the middle of the rail bearing groove. The bottoms of the anchor bolts are anchored in the sleeper and located on the two sides of the steel rail. The top of the anchor bolt sequentially penetrates through the gauge apron and the elastic strip and is fastened with the nut; the first end of the gauge apron is pressed on the rail bottom of the steel rail, and the second end of the gauge apron is pressed on the edge of the rail bearing groove; the upper surface of the gauge apron is provided with a protruding column, and the protruding column upwards penetrates into the gap in the elastic strip. According to the utility model, stable buckling pressure can be provided, so that the safety and the stability of the whole track are improved.

Description

Technical Field

[0001] The present application relates to the field of rail transit technology, and in particular to a reinforced fastener assembly. Background Art

[0002] In recent years, my country's heavy-duty railways have gradually started running 10,000-ton and 20,000-ton trains, with an annual transportation capacity of more than 400 million tons. With the continuous increase in train volume, axle load and speed, the damage to existing track components has also increased significantly. For example, during the operation of heavy-duty railways, spring clip failure and gauge baffle damage are common, which leads to loose fasteners and track instability, threatening driving safety.

[0003] In summary, since heavy-duty railways in the prior art face the problems mentioned above, higher requirements are also placed on various components such as track fasteners. Therefore, how to propose a better fastener assembly that can provide stable fastening pressure to improve the overall safety and stability of the track is a problem that urgently needs to be solved in this field. Utility Model Content

[0004] In view of this, the utility model provides a fastener assembly, which can provide a stable fastening force to improve the overall safety and stability of the track.

[0005] The technical solution of the utility model is specifically achieved as follows:

[0006] A fastener assembly, comprising: an anchor bolt, a nut, a spring bar, a gauge baffle and a sleeper;

[0007] The upper surface of the sleeper is provided with a rail bearing groove, and the rail is arranged in the middle of the rail bearing groove;

[0008] The bottom of the anchor bolt is anchored inside the sleeper and located on both sides of the rail; the top of the anchor bolt passes through the gauge baffle and the spring bar in sequence and is fastened with the nut;

[0009] The first end of the track gauge baffle is pressed on the rail bottom of the rail, and the second end is pressed on the edge of the rail bearing groove; the upper surface of the track gauge baffle is provided with a protruding column, which passes upward into the gap on the elastic bar.

[0010] Preferably, the fastener assembly further comprises a rail pad, the rail pad is arranged between the rail and the rail bearing groove, and the upper surface of the rail pad has a raised strip.

[0011] Preferably, the raised strips include high raised strips and low raised strips, and the high raised strips and low raised strips are arranged alternately and extend along the direction of the rail.

[0012] Preferably, a plurality of grooves are also provided on the high protrusion strip.

[0013] Preferably, a baffle seat is provided between the second end of the gauge baffle and the edge of the rail bearing groove, the lower surface of the baffle seat matches and fits with the edge of the rail bearing groove, and the upper surface thereof matches and fits with the second end of the gauge baffle.

[0014] Preferably, a raised baffle is provided on the lower surface of the first end of the track gauge baffle, and the first end of the track gauge baffle and the raised baffle form a groove matching the bottom of the rail.

[0015] Preferably, the upper surface of the second end portion of the track gauge baffle is provided with a groove matching the spring bar.

[0016] Preferably, an oblong hole for passing the anchor bolt is provided in the middle of the track gauge baffle, and a protruding column is provided on both sides of the oblong hole.

[0017] Preferably, the outside of the protruding column is wrapped with a layer of rubber sleeve.

[0018] Preferably, a flat washer is sleeved on the anchor bolt between the nut and the elastic bar.

[0019] As can be seen above, in the fastener assembly of the utility model, by setting a protruding column on the upper surface of the gauge baffle, the protruding column passes upward into the gap on the spring bar, so that the protruding column can be used to limit the spring bar, prevent the spring bar from loosening or moving, and avoid the problem of lack of fastener buckling pressure caused by the failure of the spring bar, thereby ensuring the stable cooperation between the gauge baffle and the spring bar, providing a stable buckling pressure on the bottom of the rail, and improving the overall safety and stability of the track. In addition, by reasonably designing the structure of the rail pad and the size of the spring bar, the stability and reliability of the fastener assembly can be further improved to ensure driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the installation of the fastener assembly in the embodiment of the utility model.

[0021] Figure 2 It is a front view of the rail pad in the embodiment of the utility model.

[0022] Figure 3 It is a side view of the rail pad in the embodiment of the utility model.

[0023] Figure 4 It is a schematic structural diagram of the track gauge baffle in the embodiment of the utility model.

[0024] Figure 5 It is a front view of the gauge baffle in the embodiment of the utility model.

[0025] Figure 6 It is a top view of the fastener assembly in the embodiment of the utility model. DETAILED DESCRIPTION

[0026] In order to make the technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] like Figures 1 to 6 As shown, the utility model provides a fastener assembly, including: an anchor bolt 1, a nut 2, a spring bar 4, a gauge baffle 5 and a sleeper 9;

[0028] The upper surface of the sleeper 9 has a rail bearing groove, and the rail 100 is arranged in the middle of the rail bearing groove;

[0029] The bottom of the anchor bolt 1 is anchored inside the sleeper 9 and is located on both sides of the rail; the top of the anchor bolt 1 passes through the gauge baffle 5 and the spring bar 4 in sequence and is fastened with the nut 2;

[0030] The first end of the track gauge baffle 5 is crimped onto the rail bottom of the rail 100 , and the second end thereof is crimped onto the edge of the rail bearing groove; the upper surface of the track gauge baffle 5 has a protruding column 51 , which passes upward into the gap on the elastic bar 4 .

[0031] In the technical solution of the utility model, the two ends of the gauge baffle 5 are respectively crimped on the rail bottom and the sleeper of the rail, and the spring bar 4 is set on the gauge baffle 5 and fixed by anchor bolts and nuts, so that the spring bar 4 and the gauge baffle 5 can generate a buckling pressure on the rail bottom of the rail, playing the role of buckling and fixing the rail. By setting a protruding column 51 on the upper surface of the gauge baffle 5, the protruding column 51 is passed upward into the gap on the spring bar 4, so that the protruding column 51 can be used to limit the spring bar 4, prevent the spring bar from loosening or moving, and avoid the problem of lack of buckling pressure of the fastener caused by the failure of the spring bar, thereby ensuring the stable cooperation between the gauge baffle 5 and the spring bar 4, providing a stable buckling pressure on the rail bottom, and improving the overall safety and stability of the track.

[0032] In the technical solution of the present utility model, a variety of implementation methods can be used to implement the above-mentioned fastener assembly. The following will take one of the implementation methods as an example to introduce the technical solution of the present utility model in detail.

[0033] For example, preferably, in a specific embodiment of the present invention, Figures 1 to 3 As shown, the fastener assembly may further include a rail pad 7, which is disposed between the rail 100 and the rail bearing groove, and the upper surface of the rail pad 7 has a raised strip.

[0034] Preferably, as an example, in a specific embodiment of the present utility model, Figure 2As shown, the raised strips may include high raised strips 71 and low raised strips 72, and the high raised strips 71 and low raised strips 72 are alternately arranged and extend along the direction of the rails, thereby increasing the lateral friction between the upper surface of the rail pad 7 and the bottom surface of the rail (for example, the lateral direction may refer to the direction perpendicular to the rail direction), limiting the lateral movement of the rail on the sleeper, preventing the rail from sliding and overturning, and ensuring the reliability and stability of the track.

[0035] Preferably, as an example, in a specific embodiment of the present utility model, Figure 3 As shown, a plurality of grooves 711 may be provided on the high raised strip 71, so as to further increase the longitudinal friction force between the upper surface of the rail pad 7 and the bottom surface of the rail (for example, the longitudinal direction may refer to the direction along the rail), and limit the longitudinal movement of the rail on the sleeper.

[0036] In addition, in the embodiment of the present invention, the raised strips on the upper surface of the rail pad 7 can also be set into other high-low combination structural forms according to actual conditions, so as to better adapt to the load and delay the fatigue aging of the pad.

[0037] For another example, preferably, in a specific embodiment of the present utility model, Figure 1 As shown, a baffle seat 6 can also be arranged between the second end of the gauge baffle 5 and the edge of the rail groove, and the lower surface of the baffle seat matches and fits with the edge of the rail groove, and the upper surface thereof matches and fits with the second end of the gauge baffle 5, so as to raise the height of the second end of the gauge baffle 5, reduce the height difference between the two ends of the gauge baffle, and play a role in transmitting force.

[0038] In addition, as an example, in a preferred specific embodiment of the present invention, Figures 4 to 6 As shown, a raised baffle 53 is provided on the lower surface of the first end of the gauge baffle 5, and the first end of the gauge baffle and the raised baffle 53 form a groove 54 matching the bottom of the rail. When the first end of the gauge baffle 5 is crimped onto the bottom of the rail 100, the bottom of the rail is in the groove 54, and the raised baffle 53 has a lateral limiting effect on the rail.

[0039] In addition, as an example, in a preferred specific embodiment of the present invention, Figures 4 to 6 As shown, the upper surface of the second end of the gauge baffle 5 is provided with a groove 55 matching the spring bar 4. When the spring bar 4 is pressed onto the gauge baffle 5, the end of the spring bar is placed in the groove 55, thereby increasing the contact area between the spring bar and the gauge baffle, better realizing force transmission, and at the same time supporting and limiting the spring bar, preventing the spring bar from being damaged due to uneven force or concentrated force.

[0040] In addition, as an example, in a preferred specific embodiment of the present utility model, as Figures 4 to 6 As shown, a long circular hole 52 for the anchor bolt 1 to pass through is provided in the middle of the track gauge baffle 5, and a protruding column 51 is provided on both sides of the long circular hole 52.

[0041] In the technical solution of the present invention, by providing the oblong hole 52, the position of the anchor bolt 1 in the oblong hole can be adjusted to adjust the position of the gauge baffle 5 and the spring bar 4, thereby adjusting the gauge between the two rails. Figure 6 Since the spring bar can be a W-shaped structure formed by multiple bends, three gaps are formed in the middle after bending. Among them, the middle gap can be used for anchor bolts to pass through, which is used to buckle and fix the rail; the gaps formed on both sides can accommodate the protruding columns 51 on the gauge baffle, and the protruding columns 51 are used to limit the displacement of the spring bar, so as to ensure the long-lasting and stable working effect of the fastener assembly.

[0042] In addition, as an example, in a preferred specific embodiment of the present utility model, as Figure 1 and Figure 6 As shown, the outside of the protruding column 51 may also be wrapped with a layer of rubber sleeve 8, so as to avoid rigid friction between the protruding column and the elastic bar.

[0043] Preferably, as an example, the thickness of the rubber sleeve 8 may be 3 mm.

[0044] In addition, as an example, in a preferred specific embodiment of the present utility model, as Figure 1 As shown, a flat washer 3 is sleeved on the anchor bolt 1 between the nut 2 and the spring bar 4 .

[0045] In addition, as an example, in a preferred specific embodiment of the present invention, the diameter a of the elastic bar can be 14 mm, the contact length b of the elastic bar can be 22.5 mm, and the total length of the elastic bar can be 139 mm.

[0046] In the technical solution of the utility model, compared with the traditional spring bar, while maintaining the same spring range (10mm), the spring bar diameter is increased, and the contact length and total length of the spring bar when buckled are increased, thereby significantly increasing the buckling pressure of the spring bar.

[0047] In summary, in the technical solution of the utility model, by setting a protruding column 51 on the upper surface of the gauge baffle 5, the protruding column 51 is passed upward into the gap on the spring bar 4, so that the protruding column 51 can be used to limit the spring bar 4, prevent the spring bar from loosening or moving, and avoid the problem of lack of fastener fastening pressure caused by the failure of the spring bar, thereby ensuring the stable cooperation between the gauge baffle 5 and the spring bar 4, providing a stable fastening pressure on the bottom of the rail, and improving the overall safety and stability of the track. In addition, by reasonably designing the structure of the rail pad 7 and the size of the spring bar 4, the stability and reliability of the fastener assembly can be further improved to ensure driving safety.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A fastener assembly, characterized in that: include: Anchor bolts, nuts, spring bars, gauge stops and sleepers; The upper surface of the sleeper is provided with a rail bearing groove, and the rail is arranged in the middle of the rail bearing groove; The bottom of the anchor bolt is anchored inside the sleeper and located on both sides of the rail; the top of the anchor bolt passes through the gauge baffle and the spring bar in sequence and is fastened with the nut; The first end of the track gauge baffle is pressed on the rail bottom of the rail, and the second end is pressed on the edge of the rail bearing groove; the upper surface of the track gauge baffle is provided with a protruding column, which passes upward into the gap on the elastic bar.

2. The fastener assembly according to claim 1, characterized in that: The fastener assembly also includes a rail pad, which is arranged between the steel rail and the rail bearing groove, and the upper surface of the rail pad is provided with a raised strip.

3. The fastener assembly according to claim 2, characterized in that: The raised strips include high raised strips and low raised strips, which are arranged alternately and extend along the direction of the rail.

4. The fastener assembly according to claim 3, characterized in that: The high protrusion strip is also provided with a plurality of grooves.

5. The fastener assembly according to claim 1, characterized in that: A baffle seat is also provided between the second end of the track gauge baffle and the edge of the rail bearing groove, the lower surface of the baffle seat matches and fits with the edge of the rail bearing groove, and the upper surface thereof matches and fits with the second end of the track gauge baffle.

6. The fastener assembly according to claim 1, wherein: A raised baffle is provided on the lower surface of the first end of the track gauge baffle, and the first end of the track gauge baffle and the raised baffle form a groove matching the bottom of the rail.

7. The fastener assembly according to claim 6, characterized in that: The upper surface of the second end of the track gauge baffle is provided with a groove matching the spring bar.

8. The fastener assembly according to claim 1, wherein: The middle part of the track gauge baffle is provided with an oblong hole for the anchor bolt to pass through, and a protruding column is respectively provided on both sides of the oblong hole.

9. The fastener assembly according to claim 8, characterized in that: The outside of the protruding column is wrapped with a rubber sleeve.

10. The fastener assembly according to claim 1, wherein: A flat washer is also sleeved on the anchor bolt between the nut and the elastic bar.

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