CN214831546U - Elastic fastener applied to railway steel rail - Google Patents
Elastic fastener applied to railway steel rail Download PDFInfo
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- CN214831546U CN214831546U CN202022566196.4U CN202022566196U CN214831546U CN 214831546 U CN214831546 U CN 214831546U CN 202022566196 U CN202022566196 U CN 202022566196U CN 214831546 U CN214831546 U CN 214831546U
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- rail
- sleeper
- air bag
- bearing platform
- inflatable air
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Abstract
The utility model provides an elastic fastener applied to railway rails, which is arranged on a sleeper and comprises a rail fixing component and an elastic component, wherein the rail fixing component is fixedly arranged on a rail bearing platform, an accommodating space is arranged between the rail bearing platform and the sleeper, and the elastic component is arranged in the accommodating space; the elastic component is an inflatable air bag which is respectively contacted with the rail bearing platform and the sleeper; the rail bearing platform is connected with the sleeper through a support rod, a buffer piece is arranged on the support rod, and the stress on the railway steel rail is transmitted to the inflatable air bag and the buffer piece through the rail bearing platform and is consumed by the gas in the inflatable air bag and the reciprocating motion of the buffer piece.
Description
Technical Field
The utility model relates to a rail transit technical field especially relates to an elastic fastener who is applied to railway rails.
Background
In rail transit passing through or in downtown areas, vibration and noise generated by noise sources such as rails, vehicles and the like have prominent influence on the surrounding environment, the life and health of people are directly influenced, and the reduction of the vibration and the noise to the maximum extent becomes one of the keys of rail transit construction. The rail traffic vibration and noise control is a comprehensive technology, and corresponding vibration reduction measures need to be taken on the aspects of steel rails, sleepers, fasteners, track beds and the like when the rail structure is subjected to vibration control. For the steel rail, when the wheel rolls over the top surface of the steel rail, the web of the steel rail is thin, and the rail web vibrates, and the vibration radiates to the outside to form noise.
In urban rail transit, in order to reduce the influence of vibration noise on the surrounding environment, an elastic fastener is often adopted to reduce wheel rail vibration and noise generated during train operation. The elastic fastener is used for alleviating vibration and impact of the train wheel rail by providing enough elasticity while keeping good technical performance of the rail structure, and finally achieves the purpose of vibration and noise reduction.
However, the existing elastic fasteners at home and abroad generally utilize the rigidity and damping characteristics of the elastic rubber layer to realize the vibration damping performance of the track structure, and the elastic fasteners using solid rubber as a vibration damping medium have poor vibration damping performance and insufficient transverse rigidity; in addition, the vibration noise problems of polygonal abrasion of wheels, initiation and development of wavy abrasion of steel rails, elastic strip breakage and the like are accelerated.
SUMMERY OF THE UTILITY MODEL
In order to overcome the technical defect, the utility model aims to provide an elastic fastener with damping effect is obvious and not fragile.
The utility model discloses an elastic fastener applied to railway rails, which is arranged on a sleeper and comprises a rail fixing component and an elastic component, wherein the rail fixing component is fixedly arranged on a rail bearing platform, an accommodating space is arranged between the rail bearing platform and the sleeper, and the elastic component is arranged in the accommodating space; the elastic component is an inflatable air bag which is respectively contacted with the rail bearing platform and the sleeper; the rail bearing platform is connected with the sleeper through a support rod, a buffer piece is arranged on the support rod, and the stress on the railway steel rail is transmitted to the inflatable air bag and the buffer piece through the rail bearing platform and is consumed by the gas in the inflatable air bag and the reciprocating motion of the buffer piece.
Preferably, the buffer piece is a spring, a limit nut is arranged on the supporting rod, and the spring is arranged between the limit nut and the rail bearing platform and/or between the limit nut and the sleeper.
Preferably, a first longitudinal limiting lug is arranged in the inflatable air bag and is vertically connected with the sleeper; when the inflatable air bag is in a full state, a gap is formed between the first longitudinal limiting convex block and the rail bearing platform; when the railway steel rail is pressed to move along the direction of the sleeper, the gap disappears, and the first longitudinal limiting lug is in contact with the rail bearing platform.
Preferably, a second longitudinal limiting lug is further arranged in the inflatable air bag and is vertically connected with the rail bearing platform; and the second longitudinal limiting lug is arranged corresponding to the first longitudinal limiting lug, when the railway steel rail is pressed to move along the direction of the sleeper, the gap disappears, and the first longitudinal limiting lug is contacted with the second longitudinal limiting lug.
Preferably, two first transverse limiting lugs are arranged on the sleeper and are respectively arranged at two sides of the inflatable air bag to limit the radial displacement of the inflatable air bag along the railway steel rail.
Preferably, the rail bearing platform is provided with two second transverse limiting lugs, and the two second transverse limiting lugs are respectively arranged at two sides of the inflatable air bag to limit the radial displacement of the inflatable air bag along the railway steel rail.
Preferably, the first transverse limiting lug is vertically connected with the sleeper, and the second transverse limiting lug is vertically connected with the rail bearing platform; the end face of the first transverse limiting lug in contact with the inflatable air bag and the end face of the second transverse limiting lug in contact with the inflatable air bag are inclined planes.
Preferably, the rail fixing assembly comprises an elastic strip, the railway rail is fixedly arranged on the rail bearing platform through the elastic strip, elastic strip mounting seats are arranged on two sides of the railway rail, and the elastic strip is arranged on the elastic strip mounting seats; and a rail lower base plate is arranged between the railway steel rail and the rail bearing platform.
Preferably, a mounting gap is formed between the elastic strip mounting seat and the railway steel rail; and a gauge limiting block is arranged in the mounting gap and used for limiting the radial displacement of the railway steel rail in the mounting gap.
Preferably, an installation bottom plate is arranged between the sleeper and the elastic component, and the installation bottom plate is fixedly arranged on the sleeper through an anchoring piece; the first longitudinal limiting lug and the first transverse limiting lug are arranged on the mounting bottom plate; the mounting base plate is provided with a mounting hole, and the support rod is fixedly connected with the sleeper through the mounting hole.
After the technical scheme is adopted, compared with the prior art, the method has the following beneficial effects:
1. compressed air is filled in the well-sealed inflatable air bag in a fluid form as a damping medium, and the inflatable air bag is arranged between the steel rail fixing assembly and the sleeper, so that the vibration noise of the wheel rail is greatly reduced and improved;
2. the rail bearing platform can reciprocate under the stress condition through the buffer part, so that the buffer part can be used as a vibration absorbing part for absorbing and consuming vibration energy, and further the vibration noise of the wheel rail is reduced;
3. limiting displacement of the inflatable air bag in a direction towards the sleeper through the first longitudinal limiting lug and the second longitudinal limiting lug; the displacement of the inflatable air bag along two sides of the railway steel rail is limited by the first transverse limiting lug and the second transverse limiting lug;
4. the railway steel rail is fixedly arranged on the steel rail fixing component through an elastic strip, and a primary vibration damping effect relative to the air inflation air bag and the buffer piece is provided through the elastic strip.
Drawings
Fig. 1 is a vertical cross-sectional view of a preferred embodiment of the present invention;
FIG. 2 is a front view of a preferred embodiment of the inflatable bladder provided by the present invention;
fig. 3 is a top view of an inflatable airbag according to a preferred embodiment of the present invention.
Reference numerals: 1-an inflatable air bag, 2-a rail bearing platform, 3-a support rod, 4-a buffer member, 5-a limiting nut, 6-a first longitudinal limiting lug, 7-a second longitudinal limiting lug, 8-a first transverse limiting lug, 9-a second transverse limiting lug, 10-a railway steel rail, 11-an elastic strip, 12-an elastic strip mounting seat, 13-a gauge limiting block, 14-a rail lower cushion plate, 15-an air inlet nozzle, 16-a mounting baseplate, 17-a mounting hole and 18-a sleeper.
Detailed Description
The advantages of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, or may be connected between two elements through an intermediate medium, or may be directly connected or indirectly connected, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
In the following description, suffixes such as "module", "part", or "unit" used to indicate elements are used only for the convenience of description of the present invention, and have no specific meaning in itself. Thus, "module" and "component" may be used in a mixture.
Referring to fig. 1-3, the utility model discloses an elastic fastener for railway rail 10, locate sleeper 18 on, including rail fixed subassembly and elastic component, rail fixed subassembly sets firmly on bearing rail platform 2, and railway rail 10 is fixed in on bearing rail platform 2 through rail fixed subassembly. An accommodating space is arranged between the rail bearing platform 2 and the sleeper 18, the elastic component is arranged in the accommodating space and is simultaneously contacted with the rail bearing platform 2 and the sleeper 18, and the vibration noise of the railway steel rail 10 is greatly reduced and improved through the elastic component.
Specifically, the elastic component is an inflatable airbag 1, an air inlet nozzle 15 is arranged on the inflatable airbag 1, and compressed air with certain pressure is filled into the inflatable airbag 1 through the air inlet nozzle 15. The inflatable air bag 1 is respectively contacted with the rail bearing platform 2 and the sleeper 18, and compressed gas in the inflatable air bag 1 is used as a damping medium. Meanwhile, the rail bearing platform 2 is connected with the sleeper 18 through the support rod 3, the support rod 3 is provided with the buffer part 4, and the rail bearing platform 2 is supported and arranged on the sleeper 18 through the inflatable air bag 1, so that vibration energy generated by the railway steel rail 10, the steel rail fixing assembly and the train running on the rail bearing platform 2 is transmitted to the inflatable air bag 1 and is absorbed and consumed by the inflatable air bag 1; the support rod 3 provides a certain support function for the rail bearing platform 2, and shares the gravity and the pressure of the rail bearing platform 2, so that the rail bearing platform 2 cannot crush the inflatable airbag 1, and the function of protecting the inflatable airbag 1 is achieved; if the support rod 3 and the rail bearing platform 2 are fixedly connected, the action of the inflatable air bag 1 is replaced, the force of the rail bearing platform 2 directly passes through the inflatable air bag 1 and is transmitted to the sleeper 18 from the support rod 3, and the vibration damping action of the inflatable air bag 1 is ignored at the moment, so that the buffer piece 4 is arranged on the support rod 3, the rail bearing platform 2 and the support rod 3 are in non-fixed connection, a certain movement space exists, and the rail bearing platform 2 can do reciprocating motion under the elastic action of the buffer piece 4 on the premise that the inflatable air bag 1 always shares most of the force of the rail bearing platform 2, therefore, the vibration damping action can be exerted by the inflatable air bag 1, and a part of the vibration can be consumed under the elastic action of the buffer piece 4.
Preferably, the buffer member 4 is a spring, the support rod 3 is provided with a limit nut 5, the spring is disposed between the limit nut 5 and the rail bearing platform 2 and/or between the limit nut 5 and the sleeper 18, in this embodiment, the limit nut 5 is disposed on the upper end surface of the rail bearing platform 2, in other embodiments, the limit nut 5 may also be disposed on the upper end surface of the installation bottom plate 16 or the lower end surface of the rail bearing platform 2, as long as the rail bearing platform 2 and the support rod 3 are movably connected, optimally, the rail bearing platform 2 can also reciprocate on the support rod 3 on the premise of keeping the movable connection.
Preferably, a first longitudinal limiting lug 6 is arranged in the inflatable air bag 1, and the first longitudinal limiting lug 6 is vertically connected with the sleeper 18; when the inflatable airbag 1 is in a full state, a gap exists between the first longitudinal limiting bump 6 and the rail bearing platform 2, compressed gas is filled in the gap, and the vibration reduction and noise reduction functions of the inflatable airbag 1 can be realized. When the railway rail 10 is pressed to move along the sleeper 18, the gap disappears, the first longitudinal limiting lug 6 is contacted with the rail bearing platform 2, and the first longitudinal limiting lug 6 limits the excessive displacement of the rail bearing platform 2 along the direction towards the sleeper 18.
Preferably, a second longitudinal limiting lug 7 is further arranged in the inflatable air bag 1, and the second longitudinal limiting lug 7 is vertically connected with the rail bearing platform 2; and the second longitudinal limit lug 7 and the first longitudinal limit lug 6 are correspondingly arranged, when the railway rail 10 is pressed to move along the direction of the sleeper 18, the gap disappears, the first longitudinal limit lug 6 is contacted with the second longitudinal limit lug 7, and the two longitudinal limit lugs are combined, so that the impact force generated when the two phases of the railway rail are contacted is more uniformly distributed, and the rail bearing platform 2 is prevented from being damaged by concentrated stress.
Preferably, two first transverse limiting lugs 8 are arranged on the sleeper 18, and the two first transverse limiting lugs 8 are respectively arranged at two sides of the inflatable air bag 1 to limit the radial displacement of the inflatable air bag 1 along the railway steel rail 10.
Preferably, the rail bearing platform 2 is further provided with two second transverse limiting convex blocks 9, the two second transverse limiting convex blocks 9 are respectively arranged on two sides of the inflatable air bag 1 to limit the radial displacement of the inflatable air bag 1 along the railway steel rail 10, so that the inflatable air bag 1 is limited in four directions, namely up, down, left and right, and the positioning of the inflatable air bag 1 is ensured.
Preferably, the first transverse limiting lug 8 is vertically connected with the sleeper 18, and the second transverse limiting lug 9 is vertically connected with the rail bearing platform 2; the end face of the first transverse limiting lug 8 contacted with the inflatable air bag 1 and the end face of the second transverse limiting lug 9 contacted with the inflatable air bag 1 are inclined planes, and the inclined planes are attached to the inflatable air bag 1 to prevent acute angles from damaging the inflatable air bag 1.
Preferably, the rail fixing assembly comprises elastic strips 11, elastic strip mounting seats 12 are arranged on two sides of the railway rail 10, the elastic strips 11 are arranged on the elastic strip mounting seats 12 on the two sides, the two sides of the railway rail 10 are fixedly arranged on the rail bearing platform 2 through the elastic strips 11 on the two sides respectively, and primary damping effects relative to the inflatable air bag 1 and the buffer piece 4 are provided through the elastic strips 11. An under-rail pad 14 is arranged between the railway steel rail 10 and the rail bearing platform, and the under-rail pad 14 can also provide a shock absorption function.
Preferably, an installation gap is formed between the elastic strip installation seat 12 and the railway rail 10, and a gauge limiting block 13 is arranged in the installation gap to limit the radial displacement of the railway rail 10 in the installation gap, so as to prevent the safety problem caused by the change of the gauge due to the radial displacement of the railway rail 10. The gauge limiting block 13 of the embodiment is an insulating block, and prevents the direct friction with the railway steel rail 10 from generating sparks to cause safety problems.
Preferably, a mounting base plate 16 is arranged between the sleeper 18 and the elastic component, threaded mounting holes 17 are formed in two sides of the mounting base plate 16, the anchoring member penetrates through the threaded mounting holes 17 and is inserted into the sleeper 18, and the mounting base plate 16 is fixedly arranged on the sleeper 18 through the anchoring member. The first longitudinal limiting lug 6 and the first transverse limiting lug 8 are arranged on the mounting bottom plate 16.
It should be noted that the embodiments of the present invention have better practicability and are not intended to limit the present invention in any way, and any person skilled in the art may change or modify the technical contents disclosed above to equivalent effective embodiments, but all the modifications or equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention still fall within the scope of the technical solution of the present invention.
Claims (10)
1. An elastic fastener applied to a railway steel rail is arranged on a sleeper and is characterized by comprising a steel rail fixing assembly and an elastic assembly, wherein the steel rail fixing assembly is fixedly arranged on a rail bearing platform, an accommodating space is arranged between the rail bearing platform and the sleeper, and the elastic assembly is arranged in the accommodating space;
the elastic component is an inflatable air bag which is respectively contacted with the rail bearing platform and the sleeper;
the rail bearing platform is connected with the sleeper through a support rod, a buffer piece is arranged on the support rod, and the stress on the railway steel rail is transmitted to the inflatable air bag and the buffer piece through the rail bearing platform and is consumed by the gas in the inflatable air bag and the reciprocating motion of the buffer piece.
2. The elastic fastener according to claim 1, wherein the buffer member is a spring, a limit nut is disposed on the support rod, and the spring is disposed between the limit nut and the rail bearing platform and/or between the limit nut and the sleeper.
3. An elastic fastener according to claim 1 or 2, wherein a first longitudinal limiting lug is arranged in the inflatable air bag and is vertically connected with the sleeper;
when the inflatable air bag is in a full state, a gap is formed between the first longitudinal limiting convex block and the rail bearing platform; when the railway steel rail is pressed to move along the direction of the sleeper, the gap disappears, and the first longitudinal limiting lug is in contact with the rail bearing platform.
4. The elastic fastener of claim 3, wherein a second longitudinal limit protrusion is further disposed in the inflatable air bag, and the second longitudinal limit protrusion is vertically connected to the rail support platform;
and the second longitudinal limiting lug is arranged corresponding to the first longitudinal limiting lug, when the railway steel rail is pressed to move along the direction of the sleeper, the gap disappears, and the first longitudinal limiting lug is contacted with the second longitudinal limiting lug.
5. An elastic fastener according to claim 4, wherein two first transverse limiting projections are provided on the sleeper, and the two first transverse limiting projections are respectively provided on both sides of the inflatable air bag to limit the radial displacement of the inflatable air bag along the railway rail.
6. An elastic fastener according to claim 5, wherein two second transverse limiting projections are provided on the rail support platform, and the two second transverse limiting projections are respectively provided on both sides of the inflatable air bag to limit the radial displacement of the inflatable air bag along the railway rail.
7. The elastic fastener of claim 6, wherein the first lateral restraining projection is vertically connected to the sleeper and the second lateral restraining projection is vertically connected to the rail support;
the end face of the first transverse limiting lug in contact with the inflatable air bag and the end face of the second transverse limiting lug in contact with the inflatable air bag are inclined planes.
8. The elastic fastener of claim 7, wherein the rail fixing assembly comprises an elastic strip, the railway rail is fixed on the rail bearing platform through the elastic strip, elastic strip mounting seats are arranged on two sides of the railway rail, and the elastic strip is arranged on the elastic strip mounting seats;
and a rail lower base plate is arranged between the railway steel rail and the rail bearing platform.
9. An elastic fastener according to claim 8, wherein a mounting gap is provided between said spring bar mounting seat and said railway rail;
and a gauge limiting block is arranged in the mounting gap and used for limiting the radial displacement of the railway steel rail in the mounting gap.
10. The elastic fastener of claim 9, wherein a mounting base plate is disposed between the sleeper and the elastic member, and the mounting base plate is fixed to the sleeper by an anchoring member;
the first longitudinal limiting lug and the first transverse limiting lug are arranged on the mounting bottom plate;
the mounting base plate is provided with a mounting hole, and the support rod is fixedly connected with the sleeper through the mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022566196.4U CN214831546U (en) | 2020-11-09 | 2020-11-09 | Elastic fastener applied to railway steel rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022566196.4U CN214831546U (en) | 2020-11-09 | 2020-11-09 | Elastic fastener applied to railway steel rail |
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| Publication Number | Publication Date |
|---|---|
| CN214831546U true CN214831546U (en) | 2021-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022566196.4U Active CN214831546U (en) | 2020-11-09 | 2020-11-09 | Elastic fastener applied to railway steel rail |
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| CN (1) | CN214831546U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112211042A (en) * | 2020-11-09 | 2021-01-12 | 上海同研城铁减振技术有限公司 | Elastic fastener applied to railway steel rail |
-
2020
- 2020-11-09 CN CN202022566196.4U patent/CN214831546U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112211042A (en) * | 2020-11-09 | 2021-01-12 | 上海同研城铁减振技术有限公司 | Elastic fastener applied to railway steel rail |
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