CN117468282A - Rail structure - Google Patents
Rail structure Download PDFInfo
- Publication number
- CN117468282A CN117468282A CN202311320928.3A CN202311320928A CN117468282A CN 117468282 A CN117468282 A CN 117468282A CN 202311320928 A CN202311320928 A CN 202311320928A CN 117468282 A CN117468282 A CN 117468282A
- Authority
- CN
- China
- Prior art keywords
- plate
- support
- rail
- elastic
- elastic support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000008093 supporting effect Effects 0.000 claims abstract description 56
- 238000013016 damping Methods 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 1
- 241001669679 Eleotris Species 0.000 abstract description 22
- 230000002401 inhibitory effect Effects 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2/00—General structure of permanent way
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/62—Rail fastenings incorporating resilient supports
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Railway Tracks (AREA)
Abstract
The application discloses track structure, wherein, track structure includes railway roadbed (10), sleeper (20), rail (30) and elastic support device (40), rail (30) pass through the interval setting sleeper (20) support in railway roadbed (10), elastic support device (40) set up at least some adjacent between sleeper (20) and elastically support rail (30), in order to cooperate sleeper (20) to rail (30) provide support. The rail support device can provide support for the rail between the sleepers through the elastic support device so as to form continuous support between the sleepers, and dynamic smoothness is improved. And the elasticity of the elastic supporting device can be set according to the requirement so as to adjust the rigidity and other parameters of the whole track system, thereby inhibiting or improving the damage of the track system and improving the vibration reduction performance.
Description
Technical Field
The present application relates to the field of track engineering, and more particularly to a track structure.
Background
In the prior art, as shown in fig. 1, the track structures are respectively from top to bottom: rail 30 → sleeper 20 → track bed 10, rail 30 is fixed to sleeper 20 by the fastener system, and sleeper 20 is arranged on track bed 10 along the extending direction interval of rail 30, results in rail 30 in the unsettled state between sleeper 20, and whole rail 30 is in the state of discontinuous support. When the wheels pass through the supporting point where the sleeper 20 is positioned and the non-supporting point where the suspended position is, the vertical deformation of the steel rail 30 is different, the downward displacement of the steel rail part supported by the sleeper 20 is relatively small, the downward displacement of the suspended steel rail part is relatively large, and further the dynamic irregularity of the track system is caused, so that the safety and the service life of the track system are affected.
In addition, once the track structure of the prior art is built, the characteristics of the whole track system (such as self-vibration frequency, damping of the system, rigidity of the system and the like) are determined, and cannot be adjusted any more. The characteristics are related to wheel-rail coupling dynamics, such as poor matching, so that the problems of abnormal wave wear of the steel rail and the like are easily induced, and the problems of noise and the like caused by insufficient vibration reduction exist, so that the driving safety, the comfort and the service life of the railway vehicle are affected, and the maintenance workload is increased.
Therefore, how to improve the safe and stable support of the track system is a technical problem to be solved by the application.
Disclosure of Invention
In view of this, the present application proposes a track structure to provide safe, stable support for a driving vehicle.
The application provides a track structure, wherein, track structure includes railway roadbed, sleeper, rail and elastic support device, the rail through the interval setting the sleeper support in the railway roadbed, elastic support device sets up at least a portion of adjacency between the sleeper and elastically support the rail to cooperate the sleeper is to the rail provides support.
Optionally, the elastic supporting device is arranged between any two adjacent sleepers.
Optionally, the elastic supporting device comprises a clamping plate, a supporting plate and an elastic supporting part, wherein the clamping plate is used for being matched with the steel rail, the supporting plate is used for being installed on the ballast bed, and the elastic supporting part is elastically supported between the clamping plate and the supporting plate.
Optionally, the elastic supporting device comprises two clamping plates symmetrically arranged, each clamping plate comprises a clamping groove part used for clamping the steel rail and a mounting part extending outwards from the clamping groove part, the mounting part is provided with a mounting plate parallel to the supporting plate, and the elastic supporting part is mounted on the mounting plate.
Optionally, the clamping plate comprises a fixing plate extending downwards from the clamping groove part, and the fixing plates of the two symmetrically arranged clamping plates are fixedly connected through a fastener.
Optionally, the elastic support portion comprises a spring.
Optionally, the elastic support has damping properties.
Optionally, the elastic support portion includes the sleeve, the spring sets up in the sleeve, be provided with damping fluid in the sleeve, be provided with in the sleeve can for the sleeve is sealed the ground axial slip's clamp plate, the top of spring is fixed in the clamp plate, the clamp plate is fixed in the splint, the telescopic bottom is sealed and is fixed in the backup pad.
Optionally, the elastic support device includes a plurality of the elastic support portions provided along an extending direction of the rail.
Optionally, the elastic support device comprises a coupling pad layer arranged between the support plate and the ballast bed.
According to the technical scheme, the elastic supporting device can provide support for the steel rail between the sleepers so as to form continuous support between the sleepers and improve dynamic smoothness. And the elasticity of the elastic supporting device can be set according to the requirement so as to adjust the rigidity and other parameters of the whole track system, thereby inhibiting or improving the damage of the track system and improving the vibration reduction performance.
Additional features and advantages of the present application will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
FIG. 1 is a perspective view of a prior art track system;
FIG. 2 is a perspective view of a track structure according to one embodiment of the present application;
FIG. 3 is a perspective view of the elastic support device of FIG. 2;
fig. 4 is an exploded perspective view of the elastic supporting device of fig. 3.
Detailed Description
The technical solutions of the present application will be described in detail below with reference to the accompanying drawings in combination with embodiments.
The application provides a track structure, wherein, the track structure includes railway roadbed 10, sleeper 20, rail 30 and elastic support device 40, rail 30 is through the interval setting sleeper 20 support in railway roadbed 10, elastic support device 40 sets up at least a portion adjacently between sleeper 20 and elastically support rail 30 to cooperate sleeper 20 provides support to rail 30.
With the track structure of the present application, the rail 30 can be supported between the sleepers 20 by the elastic supporting device 40 to form continuous support between the sleepers 20, thereby improving dynamic smoothness. And, the elasticity of the elastic supporting device 40 may be set as needed to adjust parameters such as rigidity of the entire rail system, thereby suppressing or improving the damage of the rail system and enhancing the vibration damping performance.
By providing the elastic support means 40, on the one hand, elastic support can be provided for the rail 30 to improve the overall rigidity and damping performance of the track system, and on the other hand, the suspended portion of the rail 30 can be reduced to substantially achieve continuous support.
In order to achieve a continuous support effect over the entire track system (i.e. over the entire length of rail 30), preferably, as shown in fig. 2, the resilient support means 40 are provided between any adjacent sleepers 20. The distance between the sleepers 20 is different according to different specifications, for example, 600mm, 568mm, 543mm, etc., and the elastic supporting device 40 can be set with different widths to occupy the proper space between the sleepers 20, so as to shorten the suspending distance. For example, the elastic support device 40 may be disposed at the middle of the adjacent sleeper 20, and the support node pitch (i.e., the distance between adjacent support nodes) of 600mm may be reduced to 300mm (i.e., the distance between the sleeper 20 and the center of the adjacent elastic support device 40), the distance of 568mm may be reduced to 284mm, and the distance of 543mm may be reduced to 271.5mm by disposing the elastic support device 40. That is, by providing the elastic supporting device 40, compared with the prior art, the number of the elastic supporting nodes (the supporting nodes of the sleeper 20 and the supporting nodes of the elastic supporting device 40) can be doubled, so that the downward displacement of the steel rail 30 is consistent everywhere, and continuous supporting of the steel rail 30 is realized.
In this application, the resilient support means 40 may take the form of a suitable support means to provide suitable resilient support to the rail 30 at its support node. In a preferred embodiment of the present application, as shown in fig. 3 and 4, the elastic supporting means 40 may include a clamping plate 41 for being engaged with the rail 30, a supporting plate 42 for being mounted to the ballast bed 10, and an elastic supporting portion 43 elastically supported between the clamping plate 41 and the supporting plate 42.
Wherein the clamp plate 41 is adapted to cooperate with the rail 30 to maintain a position relative to the rail 30 to provide stable support to the rail 30. The clamp 41 may take a suitable form to stably engage the rail 30. Preferably, the elastic supporting means 40 includes two clamping plates 41 symmetrically disposed, each clamping plate 41 includes a clamping groove portion 411 for clamping the rail 30 and a mounting portion extending outward from the clamping groove portion 411, the mounting portion 412 has a mounting plate 412 parallel to the supporting plate 42, and the elastic supporting portion 43 is mounted to the mounting plate 412. By providing two clamping plates 41, it is possible to facilitate installation after the rail 30 has been laid. Specifically, the slots of the clamping groove parts 411 of the two symmetrical clamping plates 41 are opposite, and can be respectively moved from two sides of the steel rail 30 to be in place around the steel rail 30 during installation. The shape of the clamping groove 411 may be set to match the cross-sectional profile of the rail 30 so that, when in place, a cavity matching the cross-section of the rail 30 is formed by the two clamping groove 411 being spliced.
In addition, in order to firmly clamp the rail 30 by the clamping plate 41, as shown in fig. 3 and 4, the clamping plate 41 may include fixing plates 413 extending downward from the clamping groove portion 411, and the fixing plates 413 of the two symmetrically disposed clamping plates 41 are fixedly coupled by a fastener P. Wherein a plurality of fasteners P may be provided along the extension direction of the rail 30 to strengthen the connection between the two clamping plates 41.
In this application, the elastic support portion 43 may take a suitable form to provide elastic support. For example, the elastic support 43 may include a spring 431. Of course, the elastic supporting portion 43 may take other forms, such as an elastic rubber block.
In addition, the elastic support portion 43 may be provided to be able to provide damping performance to further consume impact energy of the vehicle, thereby further improving vibration damping performance. For this purpose, preferably, the elastic support portion 43 may include a sleeve 432, the spring 431 is disposed in the sleeve 432, a damping fluid is disposed in the sleeve 432, a pressing plate 433 capable of axially sliding in a sealing manner with respect to the sleeve 432 is disposed in the sleeve 432, a top end of the spring 431 is fixed to the pressing plate 433, the pressing plate 433 is fixed to the clamping plate 41, and a bottom of the sleeve 432 is closed and fixed to the supporting plate 42. Thus, the sleeve 432 can serve both as a protection for the spring 431 and as a reservoir for damping fluid and as a connection to the clamping plate 41 and the support plate 42. As the vehicle passes, the spring 431 is further compressed and the damping fluid is able to produce a damping effect, thereby further dissipating the impact energy while elastically supporting.
Among other things, it will be appreciated that the damping fluid should be of a suitable type to avoid corrosion of the relevant components such as the spring 431. In addition, the amount of damping fluid injected may be determined according to design requirements, but cannot exceed the volume of the cylinder between the platen lower limit position and the bottom of the sleeve 432. For example, when the pressure plate 433 is moved down to the extreme position, the volume between the pressure plate 433 and the bottom of the sleeve 432 is 97% -99% of the volume of the sleeve 432.
To facilitate mounting of the sleeve 432 to the clamping plate 41 and the support plate 42, the clamping plate 433 may be secured with a mounting workpiece P (e.g., a bolt) extending upwardly through the clamping plate 433 to be secured to the clamping plate 41 by mating the workpiece S (e.g., a nut) at the end of the sleeve 432. The spring 431 may be sleeved around the part of the mounting workpiece penetrating into the pressing plate 433, one end of the spring 431 may be fixed to the mounting workpiece or the pressing plate, and when the vehicle passes, the rail 30 drives the clamping plate 41 to displace, and further drives the mounting workpiece and the pressing plate to displace, so that the spring 431 deforms and extrudes damping fluid.
In addition, preferably, the elastic supporting means 40 may include a plurality of the elastic supporting portions 43 provided along the extending direction of the rail 30. The elastic support portions 43 may be spaced apart a predetermined distance to accommodate the extended length of the elastic support device 40 (i.e., the length dimension of the rail 30) to provide uniform elastic support.
Furthermore, preferably, said elastic support means 40 comprise a coupling pad 44 layered between said support plate 42 and said ballast bed 10. Wherein, in order to firmly connect the elastic supporting portion 43, the supporting plate 42 is a rigid plate, and a coupling pad 44 is provided between the rigid supporting plate 42 and the ballast bed 10, so that the contact performance between the elastic supporting device 40 and the ballast bed 10 can be improved, the elastic supporting device 40 contacts the ballast bed 10 in a more gentle manner, the gap between the supporting plate 42 and the ballast bed 10 is fully filled, and rigid collision and damage caused thereby are avoided. Specifically, the coupling pad 44 may be made of a suitable cushioning material, such as an ethylene propylene diene monomer foam pad, a polyurethane pad, or neoprene.
In this application, rail 30 may be first mounted to tie 30 by fasteners 50, and then resilient support 40 may be mounted between ties 30. When the elastic supporting device 40 is installed, the clamping plate 41 is positioned relative to the sleeper 30, the supporting plate 42 is arranged on the ballast bed 10, the elastic supporting portion 43 is connected between the clamping plate 41 and the supporting plate 42, other parts of the track structure are not required to be modified, the operation is lossless, the rapid and nondestructive dismounting effect is achieved, the comprehensive construction efficiency can reach 150m/d, and the rapid and nondestructive dismounting device is applicable to the construction requirements of subway tracks.
The specifications and parameters of the relevant components of the elastic supporting device 40 (such as the number of the elastic supporting portions 43, the specification of the springs 431, etc.) may be set according to the engineering design of the desired track system, and after the installation is completed, the effect of the elastic supporting device 40 may be tested and the corresponding elasticity and damping adjustment may be performed according to the test result, for example, the number and parameters of the elastic supporting portions 43 (including the specification of the springs 431, the type of the damping fluid, etc.) may be changed to ensure that the elastic supporting device 40 can achieve the desired elastic supporting effect.
The preferred embodiments of the present application have been described in detail above, but the present application is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present application within the scope of the technical concept of the present application, and all the simple modifications belong to the protection scope of the present application.
In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described in detail.
Moreover, any combination of the various embodiments of the present application may be made without departing from the spirit of the present application, which should also be considered as disclosed herein.
Claims (10)
1. The track structure is characterized by comprising a track bed (10), sleepers (20), steel rails (30) and elastic supporting devices (40), wherein the steel rails (30) are supported on the track bed (10) through the sleepers (20) arranged at intervals, and the elastic supporting devices (40) are arranged between at least a part of adjacent sleepers (20) and elastically support the steel rails (30) so as to provide support for the steel rails (30) in cooperation with the sleepers (20).
2. A track structure according to claim 1, characterized in that the resilient support means (40) are provided between any adjacent sleepers (20).
3. The track structure according to claim 1, characterized in that the elastic support means (40) comprise a clamping plate (41), a support plate (42) and an elastic support (43), the clamping plate (41) being intended to cooperate with the rail (30), the support plate (42) being intended to be mounted to the ballast bed (10), the elastic support (43) being elastically supported between the clamping plate (41) and the support plate (42).
4. A track structure according to claim 3, characterized in that the elastic support means (40) comprises two clamping plates (41) arranged symmetrically, each clamping plate (41) comprising a clamping groove portion (411) for clamping the rail (30) and a mounting portion extending outwardly from the clamping groove portion (411), the mounting portion having a mounting plate (412) parallel to the support plate (42), the elastic support portion (43) being mounted to the mounting plate (412).
5. A track structure according to claim 3, characterized in that the clamping plate (41) comprises a fixing plate (413) extending downwards from the clamping groove part (411), the fixing plates (413) of two symmetrically arranged clamping plates (41) being fixedly connected by means of a fastener.
6. A track structure according to claim 3, characterized in that the elastic support (43) comprises a spring (431).
7. The track structure according to claim 5, characterized in that the elastic support (43) has damping properties.
8. The track structure according to claim 7, characterized in that the elastic support portion (43) comprises a sleeve (432), the spring (431) is provided in the sleeve (432), damping liquid is provided in the sleeve (432), a pressing plate (433) capable of axially sliding in a sealing manner relative to the sleeve (432) is provided in the sleeve (432), the top end of the spring (431) is fixed to the pressing plate (433), the pressing plate (433) is fixed to the clamping plate (41), and the bottom of the sleeve (432) is closed and fixed to the supporting plate (42).
9. A track structure according to any one of claims 3-8, characterized in that the elastic support means (40) comprises a plurality of said elastic support portions (43) arranged along the extension direction of the rail (30).
10. A track structure according to any one of claims 3-8, characterized in that the elastic support means (40) comprise a coupling pad (44) layered between the support plate (42) and the ballast bed (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311320928.3A CN117468282A (en) | 2023-10-12 | 2023-10-12 | Rail structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311320928.3A CN117468282A (en) | 2023-10-12 | 2023-10-12 | Rail structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117468282A true CN117468282A (en) | 2024-01-30 |
Family
ID=89628317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311320928.3A Pending CN117468282A (en) | 2023-10-12 | 2023-10-12 | Rail structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117468282A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006002443A (en) * | 2004-06-17 | 2006-01-05 | Railway Technical Res Inst | Soundproof structure of rail |
| CN109930433A (en) * | 2019-04-08 | 2019-06-25 | 西南交通大学 | A kind of mass block vibration absorber for track two sides |
| CN111197275A (en) * | 2020-03-03 | 2020-05-26 | 西南交通大学 | Steel rail elastic supporting block and external member thereof |
| CN113699836A (en) * | 2021-09-08 | 2021-11-26 | 株洲时代新材料科技股份有限公司 | Steel rail supporting device with vibration and noise reduction effects |
| CN218812908U (en) * | 2022-09-30 | 2023-04-07 | 段志刚 | Damping buckle device |
| CN115928513A (en) * | 2023-01-18 | 2023-04-07 | 上海材料研究所有限公司 | Damping alloy-based rail transit vibration and noise reduction device |
-
2023
- 2023-10-12 CN CN202311320928.3A patent/CN117468282A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006002443A (en) * | 2004-06-17 | 2006-01-05 | Railway Technical Res Inst | Soundproof structure of rail |
| CN109930433A (en) * | 2019-04-08 | 2019-06-25 | 西南交通大学 | A kind of mass block vibration absorber for track two sides |
| CN111197275A (en) * | 2020-03-03 | 2020-05-26 | 西南交通大学 | Steel rail elastic supporting block and external member thereof |
| CN113699836A (en) * | 2021-09-08 | 2021-11-26 | 株洲时代新材料科技股份有限公司 | Steel rail supporting device with vibration and noise reduction effects |
| CN218812908U (en) * | 2022-09-30 | 2023-04-07 | 段志刚 | Damping buckle device |
| CN115928513A (en) * | 2023-01-18 | 2023-04-07 | 上海材料研究所有限公司 | Damping alloy-based rail transit vibration and noise reduction device |
Non-Patent Citations (1)
| Title |
|---|
| 练松良等: "《浮置板轨道理论研究与实践》", 31 December 2021, 中国铁道出版社, pages: 30 * |
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