CN216663647U - A vibration damping fastener - Google Patents

Abstract

The utility model relates to the technical field of rail transit, in particular to a vibration damping fastener, which comprises: the fastener body at least comprises a lower iron backing plate; the damping fastener is characterized by further comprising a transverse rail brace which is arranged on the lower iron base plate and used for limiting the transverse movement of the steel rail, and a locking structure which can be buckled on the upper iron base plate is arranged on the lower iron base plate, so that the damping fastener can limit the movement of the steel rail relative to the lower iron base plate and limit the transverse, longitudinal and vertical upward movement of the upper iron base plate.

Description

A vibration damping fastener

technical field

The utility model relates to the technical field of rail transit, in particular to a vibration damping fastener.

Background technique

With the rapid development of rail transit, more and more urban rail transit lines are laid by elevated lines, ground lines, etc., and more and more lines pass through residential areas and densely populated areas. However, when the vehicle is running, the impact between the wheel and the rail causes the vibration of the rail to increase, and the resulting noise radiation affects people's normal life; the increased vibration of the rail also increases the impact force of the wheel and rail, causing the rail Diseases such as wave-shaped abrasion greatly increase the maintenance work and cost of the track line.

In order to solve this problem, common double-layer vibration-damping fasteners in the prior art have been widely used because of their superior vibration-damping performance and reasonable cost. A rail vibration damping fastener, comprising an upper backing plate, a lower backing plate, an intermediate elastic backing plate, a locking cover plate and an anchor bolt, the intermediate elastic backing plate is located between the upper backing plate and the lower backing plate , the locking cover plate is arranged above the upper backing plate, and the anchor bolts pass through the locking cover plate, the upper backing plate, the middle elastic backing plate and the lower backing plate to be locked It is characterized in that the rail vibration damping fastener further includes an elastic ring sleeve, the elastic ring sleeve is arranged between the locking cover plate and the upper backing plate, and the anchor bolt passes through the elastic ring sleeve. Although this kind of vibration damping fastener uses an intermediate elastic backing plate to isolate a part of the vertical downward vibration, it has poor suppression of the lateral movement of the upper iron backing plate, and the ability to suppress the rail corrugation is weak.

Utility model content

In view of the deficiencies in the prior art, the purpose of the present invention is to provide a vibration damping fastener to solve the problems in the background technology.

The technical scheme of the present utility model is achieved in this way: a vibration damping fastener, comprising:

a fastener body, which includes an upper iron backing plate, a middle elastic backing plate and a lower iron backing plate arranged in sequence from top to bottom;

It is characterized in that it also includes:

The lateral rail support is arranged on the lower iron backing plate and is used to limit the lateral movement of the rail.

Preferably, it also includes:

The buffer layer is arranged between the transverse rail support and the steel rail, and is respectively attached to the transverse rail support and the steel rail.

Preferably, the transverse rail support is fixed on the lower iron backing plate through a connecting assembly.

Preferably, the connection assembly includes:

Connecting bolts, one end is fixedly connected to the lower iron plate through the horizontal rail support;

The locking nut is screwed on the connecting bolt to lock the horizontal rail support on the lower iron plate with the connecting bolt;

Wherein, the transverse rail supports are provided with through holes through which the connecting bolts can pass.

Preferably, the connecting bolts are T-shaped bolts, the lower iron backing plate is provided with T-shaped grooves adapted to the T-shaped bolts, and the T-shaped bolts can be movably embedded in the T-shaped grooves.

Preferably, the upper iron backing plate is provided with a limiting portion for blocking the end of the lateral rail brace away from the steel rail.

Preferably, the limiting portion is a baffle formed integrally with the upper iron backing plate, and the baffle is arranged in close contact with the end of the lateral rail support away from the steel rail.

Preferably, the lower iron backing plate is provided with a locking structure capable of being fastened to the upper iron backing plate.

Preferably, the lower iron backing plate is provided with a hollow boss, and the upper iron backing plate is provided with a through hole through which the hollow boss can pass.

Preferably, the connecting bolts are T bolts or stud bolts.

Beneficial effects: the horizontal rail support provided in the present invention can limit the lateral swing of the rail, thereby restricting the movement of the rail relative to the lower iron backing plate, further restraining the movement of the rail, effectively restraining the occurrence of rail corrugation, and at the same time. , The lower iron backing plate is provided with a locking structure that can be buckled on the upper iron backing plate, and is connected with the upper iron backing plate through the locking structure, effectively limiting the lateral displacement, longitudinal displacement and vertical upward displacement of the upper iron backing plate , Under the combined action of the lateral rail support and the locking structure, the movement of the rail in the lateral direction is effectively suppressed. While ensuring the vibration reduction effect of the fastener, the dynamic gauge retention capability of the fastener is improved, and the occurrence of rail corrugation is further suppressed. .

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

Fig. 1 is one of the structural representations of the specific embodiment of the present invention;

Fig. 2 is the structural perspective view of the lower iron backing plate in Fig. 1;

Fig. 3 is one of the structural schematic diagrams of the specific embodiment of the present invention;

Fig. 4 is the structural perspective view of the lower iron backing plate in Fig. 3;

Fig. 5 is one of the structural schematic diagrams of the specific embodiment of the present invention;

Fig. 6 is the structural perspective view of the lower iron backing plate in Fig. 5;

7 is a perspective view of a transverse rail support in a specific embodiment of the present utility model;

8 is a perspective view of a stud bolt in a specific embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise" etc. Or the positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed in a specific orientation and operation, so it cannot be construed as a limitation to the present invention.

As shown in Figure 1-Figure 7, the utility model discloses a vibration damping fastener, comprising:

The fastener body 1 at least includes a lower iron backing plate 11;

The fastener body 1 includes an upper iron backing plate 13, a middle elastic backing plate 14 and a lower iron backing plate 11 arranged in sequence from top to bottom;

In the specific embodiment of the present utility model, it also includes:

The lateral rail support 12 is arranged on the lower iron backing plate 11 and is used to limit the lateral movement of the rail 10 .

By using the above technical solutions, the lateral rail support can be used to limit the lateral swing of the rail, thereby restricting the movement of the rail relative to the lower iron backing plate, further inhibiting the movement of the rail, and effectively inhibiting the occurrence of rail corrugation.

In the specific embodiment of the present utility model, it also includes:

The buffer layer 121 is disposed between the transverse rail support 12 and the steel rail 10 , and is respectively attached to the transverse rail support 12 and the steel rail 10 .

By adopting the above technical solution, setting the buffer layer can make the contact between the transverse rail brace and the rail more flexible, reduce the wear between the transverse rail brace and the rail, and also make the contact between the transverse rail brace and the rail more stable. What’s more, the buffer layer can be made of flexible wear-resistant materials, such as rubber, silica gel, etc., and the buffer layer and the lateral rails are connected together by vulcanization bonding or adhesive bonding, or by setting the buffer layer on the buffer layer. In the fixing groove, a connecting rod is arranged on the transverse rail support, and the connecting rod is matched with the fixing groove to connect and fix the buffer layer and the transverse rail support together.

In the specific embodiment of the present invention, the transverse rail support 12 is fixed on the lower iron backing plate 11 through the connecting assembly 2 .

By adopting the above technical solution, the transverse rail support is fixed on the lower iron backing plate through the connecting assembly, and the lower iron backing plate of the transverse rail support is used as the fixed end to produce a supporting effect with the rail.

In a specific embodiment of the present invention, the connecting assembly 2 includes:

One end of the connecting bolt 21 is fixedly connected to the lower iron backing plate 11 through the transverse rail support 12;

The locking nut 22 is threadedly connected to the connecting bolt 21, and is used to cooperate with the connecting bolt 21 to lock the transverse rail support 12 on the lower iron backing plate 11;

Wherein, the transverse rail support 12 is provided with through holes 23 through which the connecting bolts 21 can pass.

By adopting the above technical solution, the connecting bolt is threaded on the lateral rail support, one end is fixed on the lower iron pad, the locking nut is inserted from the other end of the connecting bolt, and the lateral rail support is locked on the lower iron pad through threaded connection , This fixing method facilitates the installation of the lateral rail support, and is simple and firm.

In the specific embodiment of the present invention, the connecting bolt 21 is a T-shaped bolt, the lower iron backing plate 11 is provided with a T-shaped groove 111 adapted to the T-shaped bolt, and the T-shaped bolt can be movably inserted Set in the T-shaped groove 111 .

By adopting the above technical solution, the connecting bolts are T-shaped bolts, and the lower iron backing plate is provided with T-shaped grooves adapted to the T-shaped bolts, which facilitates the penetration of the ends of the T-shaped bolts into the T-shaped grooves. The T-bolt is fixed on the upper iron backing plate, which facilitates the fixing of the T-bolt, the installation is simple, and the efficiency is high.

In a specific embodiment of the present invention, the upper iron backing plate 11 is provided with a limiting portion 112 for blocking the end of the lateral rail support 12 away from the steel rail 10 .

In the specific embodiment of the present invention, the limiting portion 112 is a baffle formed integrally with the upper iron backing plate 11 , and the baffle is arranged in close contact with the end of the lateral rail support 12 away from the steel rail 10 .

By adopting the above technical solution, the limiting portion provided on the upper iron backing plate, and the limiting portion is a baffle formed integrally with the upper iron backing plate, can be pressed tightly with the end of the lateral rail support away from the rail, further increasing the horizontal The stability of the rail support after being fixed ensures the effect of restraining the lateral movement of the rail.

In the specific embodiment of the present invention, the lower iron backing plate 11 is provided with a locking structure 3 that can be fastened on the upper iron backing plate 13 .

By adopting the above technical solution, the provided locking structure can be buckled with the upper iron backing plate, and then the upper iron backing plate is further locked and limited to the lower iron backing plate, thereby effectively limiting the lateral displacement, longitudinal displacement, etc. of the upper iron backing plate. The vertical upward displacement, the combined action of the lateral rail support and the locking structure can effectively restrain the lateral movement of the rail, while ensuring the vibration reduction effect of the fastener, it can improve the dynamic gauge retention ability of the fastener and further restrain the rail. Generation of waves.

In the specific embodiment of the present invention, the lower iron backing plate 11 is provided with a hollow boss 100 , and the upper iron backing plate 11 is provided with a through hole 101 through which the hollow boss 100 can pass.

By adopting the above technical solution, after the hollow boss is inserted into the through hole of the upper iron backing plate, the upper and lower iron backing plates are formed to be connected together by the self-locking structure on the hollow boss, and the upper and lower iron backing plates are connected together by the self-locking structure on the hollow boss. A limit surface is set between the contact surface with the lower iron backing plate to limit the lateral, vertical and longitudinal displacement of the upper iron backing plate.

In the specific embodiment of the present invention, the connecting bolts 12 are T bolts 1200 or stud bolts 1201 .

Example 1

As shown in Figure 1-Figure 2

A vibration damping fastener, comprising an upper iron pad 13, a lower iron pad 11, an intermediate elastic pad, an elastic strip 17, an anchor bolt, etc., the upper iron pad 13 and the rail 10 are connected together by the elastic strip, A groove is provided on the lower iron backing plate 11, and the upper iron backing plate 13 is embedded in the groove of the lower iron backing plate 11. By setting the locking structure 3 between the contact surfaces of the upper iron backing plate 13 and the lower iron backing The horizontal, vertical and vertical displacements of the iron backing plate 13 are limited; and a horizontal rail support 12 is provided, and a buffer layer 121 is provided on the horizontal rail support 12 to buffer the impact between the rail 10 and the horizontal rail support 12. The buffer layer 121 and the horizontal rail support 12 The rail braces 12 are connected together by means of vulcanization bonding, adhesive bonding or mechanical connection. The transverse rail braces 12 and the lower iron backing plate 11 are connected together by stud bolts 1201, and the horizontal rail braces 12 and the lower iron backing plate 11 are connected together. A limiter 112 is provided between the contact surfaces of the lower iron pad 11 to limit the displacement of the lateral rail support 12 under the extrusion of the rail 10, thereby restricting the lateral movement of the rail 10, improving the dynamic gauge retention capability of the fastener, reducing the The generation of rail corrugation.

Example 2

As shown in Figure 3-4

A vibration damping fastener, comprising an upper iron backing plate 13, a lower iron backing plate 11, an intermediate elastic backing plate, an elastic strip 17, an anchor bolt 16, etc., the upper iron backing plate 13 and the rail 10 are connected together by the elastic strips , a groove is arranged on the lower iron backing plate 11, the upper iron backing plate 13 is embedded in the groove of the lower iron backing plate 11, and a locking structure 3 is arranged between the upper iron backing plate 13 and the lower iron backing plate 11, and the upper iron backing The lateral, vertical and longitudinal displacements of the backing plate 13 are limited; and a lateral rail support 12 is provided, and a buffer layer 121 is provided on the lateral rail support 12 to buffer the impact between the rail 10 and the lateral rail support 12. The buffer layer 121 and the lateral rail support The braces 12 are connected together by means of vulcanization bonding, adhesive bonding or mechanical connection; the lower iron backing plate 11 is provided with a T-shaped groove 111, and T-shaped bolts are used between the horizontal rail brace 12 and the lower iron backing plate 11 1200 are connected together, the upper iron backing plate 13, the middle elastic backing plate 14, the lower iron backing plate 11 are locked and fixed by the anchor bolts 16 and the locking cover plate 15, and the contact surface between the horizontal rail support 12 and the lower iron backing plate 11 A limiter 112 is provided between them to limit the displacement of the transverse rail support 12 under the extrusion of the rail 10 , thereby restricting the transverse movement of the rail 10 , improving the dynamic gauge retention capability of the fastener, and reducing the occurrence of rail corrugation.

Example 3

As shown in Figure 5-6

A vibration damping fastener, comprising an upper iron pad 13, a lower iron pad 11, an intermediate elastic pad 14, an elastic strip 17, an anchor bolt, etc., through which the upper iron pad 13 and the rail 10 are connected to each other. At the same time, a hollow boss 100 is arranged on the lower iron pad 11, a self-locking structure is arranged on the hollow boss 100, and the upper iron pad 13 and the lower iron pad 11 are connected together by the self-locking structure on the hollow boss 100, And by setting the locking structure 3 between the upper iron backing plate 13 and the lower iron backing plate 11, the horizontal, vertical and vertical displacement of the upper iron backing plate 13 is restricted; A buffer layer is arranged on the support to buffer the impact between the rail 10 and the transverse rail support. The buffer layer and the transverse rail support are connected together by vulcanization bonding or mechanical connection; T Bolts or stud bolts are connected together, and a limit part is set between the contact surface of the transverse rail brace and the lower iron pad to limit the displacement of the transverse rail brace under the extrusion of the rail, thereby restricting the lateral movement of the rail 10, Improve the dynamic gauge retention capability of the fastener and reduce the occurrence of rail corrugation.

To sum up, the present invention provides a vibration damping fastener that can limit the movement of the rail relative to the lower iron pad and limit the lateral, longitudinal and vertical movement of the upper iron pad.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the within the scope of protection of the present invention.

Claims (10)

1. A vibration damping fastener, comprising: a fastener body, which includes an upper iron backing plate, a middle elastic backing plate and a lower iron backing plate arranged in sequence from top to bottom; It is characterized in that it also includes: The lateral rail support is arranged on the lower iron backing plate and is used to limit the lateral movement of the rail. 2. A vibration damping fastener according to claim 1, characterized in that, further comprising: The buffer layer is arranged between the transverse rail support and the steel rail, and is respectively attached to the transverse rail support and the steel rail. 3 . The vibration damping fastener according to claim 1 , wherein the transverse rail support is fixed on the lower iron backing plate through a connecting assembly. 4 . 4. The vibration damping fastener according to claim 3, wherein the connecting component comprises: Connecting bolts, one end is fixedly connected to the lower iron plate through the horizontal rail support; The locking nut is screwed on the connecting bolt to lock the horizontal rail support on the lower iron plate with the connecting bolt; Wherein, the transverse rail supports are provided with through holes through which the connecting bolts can pass. 5 . The vibration damping fastener according to claim 4 , wherein the connecting bolt is a T-bolt, and the lower iron backing plate is provided with a T-shaped groove adapted to the T-bolt, and The T-shaped bolt can be movably embedded in the T-shaped groove. 6 . The vibration damping fastener according to claim 1 , wherein the upper iron backing plate is provided with a limit for blocking the end of the lateral rail support away from the steel rail. 7 . department. 7 . The vibration damping fastener according to claim 6 , wherein the limiting portion is a baffle formed integrally with the upper iron backing plate, and the baffle and the lateral rail brace are away from the rail. 8 . One end is pressed against the setting. 8 . The vibration damping fastener according to claim 7 , wherein the lower iron backing plate is provided with a locking structure capable of being fastened to the upper iron backing plate. 9 . 9 . The vibration damping fastener according to claim 8 , wherein the lower iron backing plate is provided with a hollow boss, and the upper iron backing plate is provided with a hollow boss through which the hollow boss can pass. 10 . through hole. 10 . The vibration damping fastener according to claim 4 , wherein the connecting bolts are T bolts or stud bolts. 11 .

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