CN115198575A - Sleeper component and track - Google Patents

Abstract

The present invention provides a sleeper assembly and a track, wherein the sleeper assembly includes a sleeper and an elastic plate, the elastic plate is arranged at the bottom of the sleeper, and the elastic plate has at least one raised portion, and the raised portion is connected to the The bottom surface of the sleeper is in contact to buffer the pressure on the sleeper; in the present invention, the elastic plate is arranged at the bottom of the sleeper, which can buffer the pressure on the sleeper; by arranging at least one protruding part on the elastic plate, the protruding part has At a certain height, the raised part is in contact with the bottom surface of the sleeper, increasing the distance between the elastic plate and the sleeper, providing deformation space for the elastic plate. It plays a buffering role, reduces vibration, and the elastic plate requires small space, good stability, convenient replacement and low cost.

Description

Sleeper assemblies and tracks

technical field

The invention relates to the technical field of rail transit, in particular to a sleeper assembly and a rail.

Background technique

With the rapid development of society and economy, people's living standards continue to improve, and the requirements for the speed, comfort and safety of railway locomotives when traveling are also constantly improving. Nowadays, the running speed of trains continues to increase, and the vibration generated by the train also increases. Vibration not only affects the rail system, but also affects residents' lives and production activities when rail transit is located near production and living. .

At present, spring-type and damping-type shock absorption devices are usually installed under the sleepers to reduce the running noise of the train and reduce the vibration of the train, but the space required is large, the stability is poor, and the replacement is complicated and costly.

SUMMARY OF THE INVENTION

The invention provides a sleeper assembly and a track, which are used to solve the problems of installing a spring-type and damping-type shock absorbing device under the sleeper in the prior art, which requires large space, poor stability, complicated replacement and high cost.

The present invention provides a sleeper assembly, comprising: a sleeper and an elastic plate, the elastic plate is arranged on the bottom of the sleeper, the elastic plate has at least one raised portion, and the raised portion is in contact with the bottom surface of the sleeper , used to buffer the pressure on the sleeper.

According to a sleeper assembly provided by the present invention, the elastic plate includes at least one first connecting plate and at least one second connecting plate, and both the first connecting plate and the second connecting plate have oppositely disposed first sides and the second side, the first side of the first connecting plate is transitionally connected with the first side of the adjacent second connecting plate, and there is a first included angle between the two; The two sides are transitionally connected to the second side of the adjacent second connecting plate, and there is a second included angle therebetween.

According to a sleeper assembly provided by the present invention, the connection between the first side of the first connecting plate and the first side of the second connecting plate, and the second side of the first connecting plate and the second connecting plate The connections on the second side of the connection plate all have parallel portions.

According to a sleeper assembly provided by the present invention, the sleeper assembly further includes a first backing plate and a second backing plate, the first backing plate and the second backing plate are arranged below the sleeper, and the elastic The plate is arranged between the first pad and the second pad.

According to a sleeper assembly provided by the present invention, the bottom of the first backing plate is provided with a first groove, the opening of the first groove is downward, and the top of the second backing plate is provided with a second groove , the opening of the second groove is upward, and the extension directions of the first groove and the second groove are consistent with the extension direction of the parallel portion, and the parallel portion is corresponding to the first groove. groove or the second groove, and the parallel part can move in the corresponding first groove or the second groove.

According to a sleeper assembly provided by the present invention, the sleeper assembly further includes elastic fillers, and a space between the elastic plate and the first backing plate and/or between the elastic plate and the second backing plate is provided. There is said elastic filling.

According to a sleeper assembly provided by the present invention, the sleeper assembly further includes a fixing member, and the fixing member is used for fixing the elastic plate and the second backing plate.

The present invention further provides a track, including the sleeper assembly described in any one of the above, and also includes a track bed, the top of the track bed is provided with an opening, and the sleeper assembly is provided at the opening.

According to the track provided by the present invention, there is a distance between the elastic plate and the inner wall surface of the opening.

According to a track provided by the present invention, the track further includes a third backing plate, and the third backing plate is arranged between the sleeper assembly and the inner wall surface of the opening.

The sleeper assembly and the track provided by the present invention can buffer the pressure of the sleeper by arranging the elastic plate on the bottom of the sleeper; by arranging at least one protruding portion on the elastic plate, the protruding portion has a certain height, and the protruding portion and The bottom surface of the sleeper is in contact, increasing the distance between the elastic plate and the sleeper, providing deformation space for the elastic plate. When the sleeper bears the load, the raised part deforms in the direction close to the track bed, which plays a buffering role and reduces vibration. In addition, the required space of the elastic plate is small, the stability is good, the replacement is convenient, and the cost is low.

Description of drawings

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

Fig. 1 is the front view of the track provided by the present invention;

Fig. 2 is the structural representation of the elastic plate provided by the present invention;

Reference number:

1: sleeper; 2: elastic plate; 3: raised part; 4: first connecting plate; 5: second connecting plate; 6: first backing plate; 7: second backing plate; 8: elastic filler; 9 : Fixing part; 10: Track bed; 11: Opening; 12: Third backing plate; 13: Spacing.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention. , not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The following disclosure provides many different embodiments or examples for implementing different structures of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the applicability of other processes and/or the use of other materials.

In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection, Or integral connection; it can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediate medium. Those of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the present invention in specific situations.

In the description of the embodiments of the present invention, the terms "first" and "second" are only used for description purposes, and cannot be understood as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

The sleeper assembly and track provided by the present invention will be described below with reference to FIGS. 1 to 2 .

At present, the technologies used for vibration reduction on the track bed mainly include rubber pad vibration reduction, spring vibration reduction and vibration reduction concrete. Among them, the rubber type vibration reduction effect is insufficient, and it is easy to age, and it is difficult to replace the mattress laid under the track bed; The shock absorber in the vibration reduction is located under the track bed, which is troublesome to replace. Especially when used in tunnels, it is necessary to expand the diameter of the tunnel excavation, and the cost increases greatly. The spring shock absorber installed under the sleeper has poor stability; Adding rubber-like elastic materials into concrete has poor durability and sound absorption.

Based on this, the present embodiment proposes a sleeper assembly, which can reduce vibration and is suitable for the situation where the railway is at a certain distance from the production area.

The present invention provides a sleeper assembly, comprising a sleeper 1 and an elastic plate 2, the elastic plate 2 is arranged at the bottom of the sleeper 1, and the elastic plate 2 has at least one raised portion 3, which is in contact with the bottom surface of the sleeper 1 and is used for Buffer the pressure on sleeper 1.

Referring to Figure 1, the sleeper assembly includes a sleeper 1 and an elastic plate 2. The elastic plate 2 is placed under the sleeper 1. Under the action of gravity on the sleeper 1, the elastic plate 2 plays a buffering role; specifically, the elastic plate 2 has at least one The convex part 3, the convex part 3 contacts the bottom surface of the sleeper 1, increases the distance between the elastic plate 2 and the sleeper 1, and provides a deformation space for the elastic plate. The deformation occurs between it and the track bed 10, that is, the protrusion 3 is deformed in the direction close to the track bed 10, buffers the pressure on the sleeper 1, reduces vibration, requires little space, has good stability, and is easy to replace.

In this embodiment, by arranging the elastic plate at the bottom of the sleeper, the pressure on the sleeper can be buffered; by arranging at least one raised part on the elastic plate, the raised part has a certain height, and the raised part contacts the bottom surface of the sleeper, increasing the The distance between the large elastic plate and the sleeper provides a deformation space for the elastic plate. When the sleeper bears the load, the raised part deforms in the direction close to the track bed, which plays a buffering role, reduces vibration, and meets the needs of the elastic plate. Small space, good stability, easy replacement and low cost.

In this embodiment, the height of the raised portion 3 on the elastic plate 2 is not specifically limited, wherein the height of the raised portion 3 refers to the distance between the reference planes of the elastic plate 2 at the highest point of the elastic plate 2, and is limited according to the actual situation .

The structure of the elastic plate 2 in this embodiment is not specifically limited, and the length, width, thickness and protrusion height of the elastic plate 2 can be adjusted according to the load borne by the sleeper 1 and the running speed of the train on the sleeper 1 .

Referring to FIG. 1 , the elastic plate 2 has three raised parts 3 , the extending directions of the three raised parts are the same, and each raised part 3 is in contact with the bottom surface of the sleeper 1 . When the sleeper 1 is subjected to gravity, the 3 Each of the raised portions 3 is deformed toward the direction close to the track bed 10 , which has a good buffering effect and reduces vibration.

Referring to FIG. 1 , the extension direction of the raised portion 3 in this embodiment is perpendicular to the lengthwise direction of the sleeper 1 , and a plurality of raised portions 3 are arranged along the lengthwise direction of the sleeper 1 , which can buffer the impact force at multiple positions, and has a good effect. Reduce vibration.

In this embodiment, the number and position of the raised portions 3 are not specifically limited, and are limited according to the actual situation.

On the basis of the above-mentioned embodiment, the elastic plate 2 includes at least one first connecting plate 4 and at least one second connecting plate 5, and the first connecting plate 4 and the second connecting plate 5 each have a first side and a second connecting plate opposite to each other. side, the first side of the first connecting plate 4 is transitionally connected with the first side of the adjacent second connecting plate 5, and there is a first included angle between the two; the second side of the first connecting plate 4 is connected to the adjacent first connecting plate 5 The second sides of the two connecting plates 5 are transitionally connected, and there is a second included angle between them.

The elastic plate 2 provided in this embodiment is a corrugated elastic plate. The corrugated elastic plate is arranged at the bottom of the sleeper 1, and the wave crest (protrusion 3) of the corrugated elastic plate is in contact with the bottom surface of the sleeper 1. The corrugated elastic plate The corrugated elastic plate 2 is deformed when the sleeper 1 is under pressure, which can play a buffering role and reduce vibration.

Referring to FIG. 2 , the elastic plate 2 includes three first connecting plates 4 and three second connecting plates 5 , and each first connecting plate 4 and each second connecting plate 5 have opposite first and second sides , the first side of the first connecting plate 4 is transitionally connected with the first side of the adjacent second connecting plate 5, and there is a first included angle between the two, and then a first raised portion (at the crest) is formed at the connection ; The second side of the first connecting plate 4 is transitionally connected with the second side of the adjacent connecting plate, and there is a second angle between the two sides, and then a second raised portion (valley) is formed at the connection, and the first The protruding directions of the protruding portion 3 and the second protruding portion 3 are opposite.

A plurality of first connecting plates 4 and a plurality of second connecting plates 5 are alternately connected to form a corrugated elastic plate 2 , a plurality of first raised parts are in contact with the bottom of the sleeper 1 , and a plurality of second raised parts are in contact with the top of the track bed 10 When the sleeper 1 is subjected to an external force, the corrugated elastic plate 2 is deformed between the sleeper 1 and the track bed 10, the first raised part 3 is deformed to the second raised part 3, and the second raised part is The deformation of the first protruding portion 3 can play a buffering role and reduce vibration.

In one embodiment, the first included angle is 60°, and the second included angle is also 60°.

In this embodiment, the number of the first connecting plate 4 and the second connecting plate 5, as well as the first included angle and the second included angle are not specifically limited. The speed of the train is determined.

On the basis of the above embodiment, further, the connection between the first side of the first connection plate 4 and the first side of the second connection plate 5 and the connection between the second side of the first connection plate 4 and the second connection plate 5 The connections on the second side all have parallel portions.

In this embodiment, a parallel portion is provided on the raised portion 3 of the elastic plate 2, and the parallel portion is in contact with the bottom surface of the sleeper 1, so as to increase the contact area between the elastic plate 2 and the sleeper 1 or other structures, so as to prevent the sleeper 1 from being damaged when the sleeper 1 is under pressure. Stress concentration occurs at the boss portion 3, resulting in breakage.

Specifically, a parallel portion is provided at the connection (the crest) of the first side of the first connecting plate 4 and the first side of the adjacent second connecting plate 5, and the parallel portion is in contact with the bottom surface of the sleeper 1, increasing the connection between the connection and the The contact area of the sleeper 1 can avoid stress concentration and lead to fracture; the connection between the second side of the first connecting plate 4 and the second side of the adjacent second connecting plate 5 (at the valley) is also provided with a parallel portion. Contact with the track bed 10 increases the contact area connected to the sleeper 1 to avoid stress concentration and breakage.

On the basis of the above embodiment, the sleeper assembly further includes a first backing plate 6 and a second backing plate 7, the first backing plate 6 and the second backing plate 7 are arranged under the sleeper 1, and the elastic plate 2 is arranged on the first backing plate between the plate 6 and the second backing plate 7 .

The sleeper assembly provided in this embodiment further includes a backing plate, which can protect the elastic board 2 , improve the stability of the elastic board 2 , and prolong the service life of the elastic board 2 .

Referring to FIG. 1 , in this embodiment, a first backing plate 6 and a second backing plate 7 are arranged below the sleeper 1 , wherein the elastic plate 2 is arranged between the first backing plate 6 and the second backing plate 7 , and the elastic plate 2 is in contact with the first backing plate 6 and the second backing plate 7, the first backing plate 6 and the second backing plate 7 can protect the elastic plate 2; The first backing plate 6 or the second backing plate 7 near the connection is in contact, that is, the connection (the crest) of the first backing plate 6 is in contact with the first backing plate 6, and the connection (the trough) of the second backing plate 7 is in contact. ) in contact with the second backing plate 7; when the sleeper 1 is under the action of gravity, the first backing plate 6 buffers the vibration when the train passes, and the elastic plate 2 can be between the first backing plate 6 and the second backing plate 7 Deformation occurs, prolonging the service life of the elastic plate 2 .

The first backing plate 6 and the second backing plate 7 in this embodiment can be made of metal or rubber material, which can play a buffering role and only need to protect the elastic plate 2 .

On the basis of the above embodiment, further, the bottom of the first backing plate 6 is provided with a first groove, the opening 11 of the first groove is downward, the top of the second backing plate 7 is provided with a second groove, the The opening 11 of the two grooves is upward, the extending directions of the first groove and the second groove are consistent with the extending direction of the parallel portion, the parallel portion is correspondingly arranged in the first groove or the second groove, and the parallel portion can be Move within the corresponding first groove or second groove.

In one embodiment, the bottom of the first backing plate 6 is provided with a first groove, the opening 11 of the first groove is downward, and the extending direction of the first groove is consistent with the extending direction of the corresponding parallel portion, and the first groove The size of the groove is larger than the size of the corresponding parallel part (parallel part at the wave crest), so that the parallel part can move or deform in the first groove, that is, when the sleeper 1 is subjected to gravity, the parallel part can be in the first groove. Deformation occurs in a groove.

Further, the top of the second backing plate 7 is provided with a second groove, the opening 11 of the second groove is upward, and the extending direction of the second groove is consistent with the extending direction of the corresponding parallel portion, and the size of the second groove is It is larger than the size of the corresponding parallel part (parallel part at the valley), so that the parallel part can move or deform in the second groove, that is, when the sleeper 1 is subjected to gravity, the parallel part can be in the second groove deformed.

In this embodiment, a first groove is provided at the bottom of the first backing plate 6, a second groove is provided on the top of the second backing plate 7, and the parallel portion is correspondingly arranged in the first groove or the second groove to limit the elasticity The position of the raised part 3 of the plate 2, the size of the first groove and the size of the second groove are all larger than the size of the corresponding parallel part, so that when the sleeper 1 is subjected to gravity, the parallel part can be in the first groove or the second groove. Deformation occurs in the groove to prevent the parallel part from detaching from the first groove or the second groove and play a buffering role.

On the basis of the above embodiment, further, the sleeper assembly further includes elastic fillers 8 , and elastic fillers are provided between the elastic plate 2 and the first backing plate 6 and/or between the elastic plate 2 and the second backing plate 7 8.

The elastic plate 2 is arranged between the first backing plate 6 and the second backing plate 7, and the elastic plate 2 has at least one raised portion 3, there is a gap between the raised portion 3 and the second backing plate 7, two adjacent There is also a gap between the elastic plate 2 between the protruding parts 3 and the first backing plate 6 .

In one embodiment, the elastic filler 8 is provided at the gap between the elastic plate 2 and the first backing plate 6 between the two adjacent raised portions 3. When the sleeper 1 is under the action of gravity, the raised The part 3 (the position in contact with the sleeper 1) is preferentially deformed, and the elastic filler 8 is arranged between the elastic plate 2 and the first backing plate 6, which can buffer a certain impact force and slow down the gap between the two adjacent raised parts 3. Deformation of the elastic plate 2.

In another embodiment, the elastic filler 8 is arranged in the gap between the raised portion 3 and the second backing plate 7 . When the sleeper 1 is subjected to the action of gravity, the elastic plate 2 is deformed, and the elastic filler 8 is arranged. Below the elastic plate 2 , the impact force is buffered, the deformation of the elastic plate 2 is reduced, and the life of the elastic plate 2 is prolonged.

In yet another embodiment, the gap between the elastic plate 2 and the first backing plate 6 between the two adjacent raised portions 3 and the gap between the raised portion 3 and the second backing plate 7 are both provided. There are elastic fillers 8. The elastic fillers 8 between the elastic plate 2 between the two adjacent raised parts 3 and the first backing plate 6 can reduce the impact force and slow down the deformation of the elastic plate 2; The elastic filler 8 in the gap between the second backing plates 7 can reduce the deformation amount of the elastic plate 2, prolong the life of the elastic plate 2, reduce the replacement frequency, and save the cost.

In this embodiment, elastic products, such as rubber products, can be filled according to the elastic requirements of the elastic plate 2, so as to improve the durability of the elastic plate 2, prolong the service life of the elastic plate 2, and expand the application range.

On the basis of the above embodiment, the sleeper assembly further includes a fixing member 9 , and the fixing member 9 is used for fixing the elastic plate 2 and the second backing plate 7 .

Referring to FIG. 1, at the position where the elastic plate 2 is in contact with the second backing plate 7, the elastic plate 2 and the second backing plate 7 are fixedly connected together by bolts, and the position of the elastic plate 2 is fixed to prevent the elastic plate 2 from being affected by the impact force. Movement occurs under the action. In another embodiment, the elastic plate 2 is fixed with the first backing plate 6 . This embodiment does not specifically limit the structure of the fixing member 9 .

This embodiment also provides a track, including the sleeper assembly in any of the above embodiments, and also includes a track bed 10 , an opening 11 is provided at the top of the track bed 10 , and the sleeper assembly is provided at the opening 11 .

The track provided in this embodiment includes a sleeper assembly and a track bed 10. An opening 11 is provided at the top of the track bed 10, the size of the opening 11 is matched with the sleeper assembly, and the sleeper assembly is arranged at the opening 11; the height of the opening 11 is smaller than the height of the sleeper assembly, so as to Raise the sleeper assembly above the top surface of the track bed 10 .

On the basis of the above embodiment, further, there is a distance 13 between the elastic plate 2 and the inner wall surface of the opening 11 .

The elastic plate 2 will deform under the action of external force. A distance 13 is set between the elastic plate 2 and the inner wall of the opening 11 to ensure that the elastic plate 2 has enough deformation space to avoid collision with the inner wall of the opening 11 and reduce Vibration to extend the life of the elastic plate 2 .

On the basis of the above embodiment, the track further includes a third backing plate 12 , and the third backing plate 12 is arranged between the sleeper assembly and the inner wall surface of the opening 11 .

Specifically, the sleeper assembly is arranged at the opening 11, and the third backing plate 12 is arranged between the sleeper assembly and the inner wall of the opening 11, which can prevent the sleeper assembly from colliding with the inner wall of the opening 11, reduce vibration, and can also avoid other substances. Entering into the opening 11, the elastic plate 2 is polluted, the aging of the elastic plate 2 is slowed down, the stability of the elastic plate 2 is maintained, the service life of the elastic plate 2 is prolonged, and the cost is saved.

In the actual installation process, the sleeper assembly is assembled in advance, the top of the track bed 10 is provided with an opening 11, the assembled sleeper assembly is placed at the opening 11, and finally the third backing plate 12 is set between the sleeper assembly and the opening 11 between the inner walls.

Alternatively, an opening 11 is provided at the top of the track bed 10, the second pad 7 is placed on the bottom surface of the opening 11, the elastic plate 2 is placed on the second pad 7 according to the requirements, and the elastic plate 2 is fixed on the second pad 7, or connect and fix the elastic plate 2 to the bottom of the track bed 10, and place an elastic filler 8 between the second backing plate 7 and the elastic plate 2; further, place the first backing plate 6 on the top of the elastic plate 2 , so that the elastic plate 2 is placed between the first cushion plate 6 and the second cushion plate 7, and the elastic filler 8 is placed between the first cushion plate 6 and the elastic plate 2, and finally the sleeper 1 is placed in the first cushion plate The top of the board 6, and then the sleeper assembly is arranged at the opening 11 at the top of the track bed 10.

Further, a third backing plate 12 is placed between the sleeper assembly and the inner wall surface of the opening 11 to prevent the sleeper assembly from colliding with the track bed 10, and can seal the elastic plate 2 inside the opening 11, preventing other substances from entering the opening 11 and the elastic The contact of the plate 2 contaminates the elastic plate 2, causing aging and affecting the stability of the elastic plate 2.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it can still be The technical solutions described in the foregoing embodiments are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A tie assembly, comprising: the elastic plate is arranged at the bottom of the sleeper and provided with at least one protruding part, and the protruding part is in contact with the bottom surface of the sleeper and used for buffering the pressure applied to the sleeper.

2. The tie assembly of claim 1 wherein said resilient plate includes at least one first connecting plate and at least one second connecting plate, said first connecting plate and said second connecting plate each having first and second oppositely disposed sides, said first side of said first connecting plate being in transition with said first side of an adjacent said second connecting plate with a first included angle therebetween; and the second side of the first connecting plate is in transition connection with the second side of the adjacent second connecting plate, and a second included angle exists between the second side of the first connecting plate and the second side of the adjacent second connecting plate.

3. The tie assembly of claim 2 wherein the junction of the first side of the first connecting plate and the first side of the second connecting plate and the junction of the second side of the first connecting plate and the second side of the second connecting plate each have a parallel portion.

4. The tie assembly of claim 3 further comprising a first backing plate and a second backing plate, said first backing plate and said second backing plate being disposed below said tie, said resilient plate being disposed between said first backing plate and said second backing plate.

5. The sleeper assembly of claim 4, wherein the bottom of the first base plate is provided with a first groove, the first groove is opened downward, the top of the second base plate is provided with a second groove, the second groove is opened upward, the extending directions of the first groove and the second groove are consistent with the extending direction of the parallel portion, the parallel portion is correspondingly arranged in the first groove or the second groove, and the parallel portion can move in the corresponding first groove or the second groove.

6. Sleeper assembly according to claim 4, characterized in that the sleeper assembly further comprises an elastic filler, which is provided between the elastic plate and the first pad plate and/or between the elastic plate and the second pad plate.

7. Sleeper assembly according to claim 4, characterized in that the sleeper assembly further comprises a fixing member for fixing the elastic plate and the second shim plate.

8. A rail comprising a tie assembly as claimed in any one of claims 1 to 7 and further comprising a track bed having an opening at the top of the track bed, the tie assembly being located at the opening.

9. The track of claim 8, wherein the resilient plate is spaced from an inner wall surface of the opening.

10. The track of claim 8, further comprising a third pad disposed between the tie assembly and an inner wall surface of the opening.

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