CN114775340A - Subway track backing plate assembly with vibration and noise reduction function - Google Patents
Subway track backing plate assembly with vibration and noise reduction function Download PDFInfo
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- CN114775340A CN114775340A CN202210379337.2A CN202210379337A CN114775340A CN 114775340 A CN114775340 A CN 114775340A CN 202210379337 A CN202210379337 A CN 202210379337A CN 114775340 A CN114775340 A CN 114775340A
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- rail
- base plate
- arc
- noise reduction
- shaped elastic
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- 239000007769 metal material Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000013016 damping Methods 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 12
- 230000003139 buffering effect Effects 0.000 abstract description 6
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- 229920000742 Cotton Polymers 0.000 description 1
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- 230000004075 alteration Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
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- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
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- 238000010292 electrical insulation Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
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Images
Classifications
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- 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
- E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
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- 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
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- 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
- E01B19/003—Means for reducing the development or propagation of noise
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Railway Tracks (AREA)
Abstract
The invention relates to a subway rail base plate assembly with vibration and noise reduction functions, which comprises a rail lower base plate (1), a clamping assembly (2) and a rail upper base plate (3), wherein a plurality of square grooves (5) and sliding grooves (8) are formed in the rail lower base plate (1), arc-shaped elastic pieces I (6) are arranged in the square grooves (5), the tops of the arc-shaped elastic pieces I (6) are fixedly connected to the bottom of the rail lower base plate (3), arc-shaped elastic pieces II (7) are fixedly embedded in the bottom of the rail upper base plate (3), and the arc-shaped elastic pieces II (7) are slidably connected into the sliding grooves (8); the noise reduction and sound absorption plate (9) is arranged on each of two sides of the top of the lower track base plate (1), and the rubber base plate (10) is fixedly connected to the top of the upper track base plate (3). Compared with the prior art, the damping and noise-reducing device has the advantages that the second arc-shaped elastic sheet and the first arc-shaped elastic sheet are used for buffering and damping vibration through the upper rail base plate and the rubber base plate, and then the noise-reducing and noise-reducing plate is used for absorbing and reducing noise, so that the damping and noise-reducing effects are good.
Description
Technical Field
The invention relates to the technical field of subway rail accessories, in particular to a subway rail base plate assembly with vibration and noise reduction functions.
Background
The track backing plate is the important part in the railway track structure, install between rail and concrete sleeper, its main function is produced high-speed vibration and impact when buffering vehicle passes through the rail, protection road bed and sleeper, and carry out electrical insulation to signal system, but present backing plate is easy ageing, the easy emergence deformation fracture of trompil department, and shock attenuation nature and corrosion resistance are poor, can not use for a long time, need dismantle after using a period and change again, very big waste resources, and present backing plate is not convenient for install, staff's work load has been increased.
CN202010649352.5 discloses a track pad with shock absorption and noise reduction functions, which includes a pre-buried pad and a protection mechanism, wherein a fixed base is arranged at the top end of the pre-buried pad, a track pad is arranged at the bottom end of the inner side of the fixed base, the protection mechanism includes two holes, the two holes are respectively arranged at two sides of the surface of the top end of the track pad, a protection inner ring sleeve is arranged at the inner side of each hole, a limit fixing groove is arranged at the inner side surface of each hole, a limit fixing block is fixedly connected to the outer side surface of the protection inner ring sleeve, and the limit fixing block is clamped at the inner side of the limit fixing groove; the beneficial effects of the invention are: through having designed the cushion plate, play the cushioning effect, the cushion plate top has installed circular convex block additional moreover, leaves the clearance, plays the cushioning effect, has installed the protection inner race additional through the hole inboard, prevents that clamp plate fixing bolt from passing hole inboard back, causes wearing and tearing to hole inboard, the phenomenon of deformation fracture appears.
But only carry out the damping through backing plate and rubber pad, the damping noise reduction effect is relatively poor, and the noise causes the influence to surrounding environment and passenger easily, is not convenient for use for a long time.
Disclosure of Invention
The invention aims to solve the technical problems, provides a subway track base plate assembly with vibration and noise reduction functions, and solves the problems that in the use process of the existing subway track base plate, vibration reduction is only carried out through a base plate and a rubber pad, the vibration and noise reduction effect is poor, and noise easily affects the surrounding environment and passengers.
The purpose of the invention can be realized by the following technical scheme: a subway rail backing plate component with vibration and noise reduction functions comprises a rail lower backing plate, clamping components are fixedly arranged on two sides of the top of the rail lower backing plate, the top of the lower rail backing plate is provided with an upper rail backing plate, four corners of the inner cavity of the upper rail backing plate are provided with bolts, square grooves are arranged at four corners of the top of the lower rail backing plate, the bottom end of the bolt penetrates through the upper rail backing plate and is in threaded connection with the inner part of the square groove, the square groove is internally provided with a first arc-shaped elastic sheet, the top of the first arc-shaped elastic sheet is fixedly connected with the bottom of the backing plate on the track, the bottom of the upper backing plate of the track is fixedly embedded with a second arc-shaped elastic sheet, the top of the lower backing plate of the track is provided with a sliding chute which is connected with the second arc-shaped elastic sheet in a sliding way, the noise reduction and sound absorption plate is welded on the two sides of the top of the lower track base plate, and the rubber base plate is fixedly connected to the top of the upper track base plate.
Preferably, the first arc-shaped elastic piece and the second arc-shaped elastic piece are in a complementary design, wherein the chord length b1 and the arch height h1 of the first arc-shaped elastic piece, and the chord length b2 and the arch height h2 of the second arc-shaped elastic piece satisfy the following relation: b1< b2, h1> h2, b1 ═ b2 (1/3-2/3); the arc elasticity of the first arc-shaped elastic sheet is 15kN/mm, and the arc elasticity of the second arc-shaped elastic sheet is 10 kN/mm.
Preferably, the bottom of the inner wall of the square groove is fixedly connected with a friction ring, and the inner wall of the friction ring is in contact with the surface of the bolt.
Preferably, the four corners of the top of the lower rail base plate are provided with positioning grooves, and the front ends and the rear ends of the two sides of the upper rail base plate are fixedly connected with positioning plates in sliding connection with the positioning grooves.
Preferably, the bottom of the second arc-shaped elastic sheet is fixedly connected with a steel spring, phosphating treatment and epoxy resin coating are adopted for corrosion prevention, and the bottom end of the spring is fixedly connected to the inside of the sliding groove.
Preferably, the bottom of the upper rail backing plate is fixedly connected with a rubber gasket, and the upper rail backing plate is made of a high-strength metal material.
Preferably, the spring, the arc-shaped elastic sheet II and the arc-shaped elastic sheet I are all made of stainless steel materials, the bottom of the upper track base plate is fixedly connected with a corrosion-resistant cloth sleeve, and the bottom of the corrosion-resistant cloth sleeve is fixedly connected to the top of the lower track base plate.
Preferably, the noise-reducing and sound-absorbing board is made of a commercially available elutriated porous material, compared with a noise-reducing and sound-absorbing board made of a common polyester sound-absorbing cotton material, the noise-reducing and sound-absorbing board is internally provided with a large number of uniformly distributed tiny pores, sound waves absorbed into the noise-reducing and sound-absorbing board rub with solid tendons among the pores, and sound energy is converted into heat energy to be consumed due to viscosity and heat conduction effects, so that a greater noise-reducing effect is achieved.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention designs two elastic pieces with different structures between the upper backing plate and the lower backing plate, wherein the second arc-shaped elastic piece is long and can move in the sliding groove, and mainly plays a role in damping the upper backing plate of the rail, the first arc-shaped elastic piece is large in quantity and long in arc length and mainly plays a role in buffering to share the impact force borne by the second arc-shaped elastic piece, so that the second arc-shaped elastic piece can quickly recover elasticity, the second arc-shaped elastic piece and the first arc-shaped elastic piece perform buffering and damping treatment through the upper backing plate of the rail and the rubber backing plate, and then the noise reduction and sound absorption plate performs sound absorption and noise reduction treatment on noise.
2. According to the invention, the friction ring is arranged, so that the friction force between the square groove and the bolt can be increased, and the stability of the bolt is improved.
3. The positioning groove and the positioning plate are arranged, so that the upper base plate of the track can be limited, and the stability of the upper base plate of the track in use is improved.
4. According to the invention, the spring is arranged, so that the vibration reduction effect of the second arc-shaped elastic sheet can be improved, and the service life of the second arc-shaped elastic sheet is prolonged.
5. According to the invention, the rubber gasket is arranged, so that the bottom of the upper track base plate can be protected, and the phenomenon that the bottom of the upper track base plate collides with the lower track base plate is avoided.
6. According to the invention, the corrosion-resistant cloth cover is arranged, so that dust can be protected, and the phenomenon that dust impurities easily cause rapid abrasion to the arc-shaped elastic sheet is avoided.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
FIG. 3 is a front sectional view of a backing plate on a structural rail of the present invention;
FIG. 4 is a perspective cross-sectional view of a structural rail lower bolster of the present invention;
fig. 5 is a schematic top view of the tie plate of the track of the present invention.
In the figure: 1. a rail lower backing plate; 2. a clamping assembly; 3. a backing plate is arranged on the track; 4. a bolt; 5. a square groove; 6. a first arc-shaped elastic sheet; 7. a second arc-shaped elastic sheet; 8. a chute; 9. a noise-reducing sound-absorbing board; 10. a rubber pad plate; 11. a friction ring; 12. positioning a groove; 13. positioning a plate; 14. a spring; 15. a rubber gasket; 16. a corrosion-resistant cloth cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 5, the subway rail backing plate assembly with vibration and noise reduction functions provided by the invention comprises a rail lower backing plate 1, clamping assemblies 2 are fixedly installed on both sides of the top of the rail lower backing plate 1, a rail upper backing plate 3 is arranged on the top of the rail lower backing plate 1, bolts 4 are arranged on four corners of an inner cavity of the rail upper backing plate 3, square grooves 5 are arranged on four corners of the top of the rail lower backing plate 1, the bottom ends of the bolts 4 penetrate through the rail upper backing plate 3 and are in threaded connection with the inside of the square grooves 5, an arc-shaped elastic sheet I6 is arranged inside the square grooves 5, the top of the arc-shaped elastic sheet I6 is fixedly connected with the bottom of the rail upper backing plate 3, an arc-shaped elastic sheet II 7 is embedded in the bottom of the rail upper backing plate 3, a sliding groove 8 in sliding connection with the arc-shaped elastic sheet II 7 is arranged on the top of the rail lower backing plate 1, noise reduction and sound absorption plates 9 (in the embodiment, noise reduction sound absorption plates made of commercially available elutriated materials are welded on both sides of the top of the rail lower backing plate 1), the top of the track upper backing plate 3 is fixedly connected with a rubber backing plate 10.
The first arc-shaped spring piece and the second arc-shaped spring piece are in complementary design, the chord length b1 and the arch height h1 of the first arc-shaped spring piece, and the chord length b2 and the arch height h2 of the second arc-shaped spring piece meet the following relations: b1< b2, h1> h2, b1 ═ b2 (1/3 to 2/3), in this embodiment, b1 ═ 1/2b 2; the arc elasticity of the first arc-shaped elastic sheet is 15kN/mm, and the arc elasticity of the second arc-shaped elastic sheet is 10 kN/mm.
Referring to fig. 2, a friction ring 11 is fixedly connected to the bottom of the inner wall of the square groove 5, and the inner wall of the friction ring 11 is in contact with the surface of the bolt 4.
As a technical optimization scheme of the invention, the friction ring 11 is arranged, so that the friction force between the square groove 5 and the bolt 4 can be increased, and the stability of the bolt 4 is improved.
Referring to fig. 2, positioning grooves 12 are formed at four corners of the top of the lower rail pad 1, and positioning plates 13 slidably connected with the positioning grooves 12 are fixedly connected to the front ends and the rear ends of two sides of the upper rail pad 3.
As a technical optimization scheme of the invention, the positioning groove 12 and the positioning plate 13 are arranged, so that the track upper base plate 3 can be limited, and the stability of the track upper base plate 3 in use is improved.
Referring to fig. 3, the bottom of the second arc-shaped elastic sheet 7 is fixedly connected with a spring 14, and the bottom end of the spring 14 is fixedly connected inside the sliding groove 8.
As a technical optimization scheme of the invention, the spring 14 is arranged, so that the vibration damping effect of the second arc-shaped elastic sheet 7 can be improved, and the service life of the second arc-shaped elastic sheet 7 can be prolonged.
Referring to fig. 3, a rubber gasket 15 is fixedly attached to the bottom of the rail upper pad 3, and the rail upper pad 3 is made of a high-strength metal material.
As a technical optimization scheme of the invention, the rubber gasket 15 is arranged, so that the bottom of the upper track base plate 3 can be protected, and the phenomenon that the bottom of the upper track base plate 3 collides with the lower track base plate 1 is avoided.
Referring to fig. 2, the spring 14, the second arc-shaped spring plate 7 and the first arc-shaped spring plate 6 are all made of stainless steel materials, the corrosion-resistant cloth cover 16 is fixedly connected to the bottom of the upper track base plate 3, and the bottom of the corrosion-resistant cloth cover 16 is fixedly connected to the top of the lower track base plate 1.
As a technical optimization scheme of the invention, the corrosion-resistant cloth cover 16 is arranged, so that dust can be protected, and the phenomenon that dust impurities easily cause abrasion acceleration on the arc-shaped elastic sheet I6 is avoided.
The working principle and the using process of the invention are as follows: during the use, when the car was through the track, the track can promote track upper padding plate 3 downwards, and arc shell fragment two 7 carries out the damping processing to track upper padding plate 3, and arc shell fragment one 6 can cushion the protection through bolt 4 to track upper padding plate 3 simultaneously, carries out the damping processing through double-deck buffering to the track, and the abatvoix 9 of making an uproar falls simultaneously and can inhale the sound and fall the processing of making an uproar to the noise to reach the better advantage of damping noise reduction effect.
In conclusion: this subway track backing plate subassembly with function of making an uproar falls in damping, carry out buffering damping by two arc shell fragments 7 and an arc shell fragment 6 through track upper padding plate 3 and rubber backing plate 10 and handle, inhale the sound by falling the abatvoix 9 of making an uproar and fall the noise treatment again, thereby possessed the better advantage of damping noise reduction effect, solved current subway track backing plate in the use, only carry out the damping through backing plate and rubber pad, the damping noise reduction effect is relatively poor, the noise causes the problem of influence to surrounding environment and passenger easily.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A subway rail base plate assembly with vibration and noise reduction functions comprises a rail lower base plate (1), a clamping assembly (2) and a rail upper base plate (3), and is characterized in that the rail lower base plate (1) is provided with a plurality of square grooves (5) and sliding grooves (8), arc-shaped elastic pieces I (6) are arranged in the square grooves (5), the tops of the arc-shaped elastic pieces I (6) are fixedly connected to the bottom of the rail lower base plate (3), arc-shaped elastic pieces II (7) are fixedly embedded in the bottom of the rail upper base plate (3), and the arc-shaped elastic pieces II (7) are slidably connected into the sliding grooves (8); the noise reduction and sound absorption plate (9) is arranged on each of two sides of the top of the lower track base plate (1), and the rubber base plate (10) is fixedly connected to the top of the upper track base plate (3).
2. A subway rail pad plate assembly with vibration and noise reduction functions as claimed in claim 1, wherein said rail upper pad plate (3) inner cavity is provided with a plurality of bolts (4), the bottom end of each bolt (4) penetrates through the rail upper pad plate (3) and is screwed inside the square groove (5).
3. A subway rail pad assembly with vibration and noise reduction functions as claimed in claim 2, wherein a friction ring (11) is fixedly connected to the bottom of the inner wall of said square groove (5), and the inner wall of said friction ring (11) is in contact with the surface of the bolt (4).
4. A subway rail backing plate assembly with vibration and noise reduction functions as claimed in claim 1, wherein positioning grooves (12) are formed at four corners of the top of the rail lower backing plate (1), and positioning plates (13) slidably connected with the positioning grooves (12) are fixedly connected to the front ends and the rear ends of two sides of the rail upper backing plate (3).
5. A subway rail backing plate assembly with vibration and noise reduction functions as claimed in claim 1, wherein a spring (14) is fixedly connected to the bottom of said second arc-shaped elastic sheet (7), and the bottom end of said spring (14) is fixedly connected to the inside of said chute (8).
6. A subway rail pad plate assembly with vibration and noise reduction functions as claimed in claim 1, wherein said rail upper pad plate (3) has a rubber gasket (15) fixedly connected to its bottom.
7. A subway rail pad assembly having vibration and noise reduction functions as claimed in claim 1, wherein said rail upper pad (3) is made of high-strength metal material.
8. A subway rail base plate assembly with vibration and noise reduction functions as claimed in claim 5, wherein said spring (14), said arc-shaped elastic sheet two (7) and said arc-shaped elastic sheet one (6) are made of stainless steel material.
9. A subway rail pad plate assembly with vibration and noise reduction functions as claimed in claim 1, wherein said rail upper pad plate (3) has a corrosion-resistant cloth cover (16) fixedly connected to its bottom.
10. A subway rail tie plate assembly with vibration and noise reduction functions as claimed in claim 9, wherein the bottom of said corrosion-resistant cloth cover (16) is fixedly connected to the top of said rail lower tie plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210379337.2A CN114775340B (en) | 2022-04-12 | 2022-04-12 | Subway track backing plate assembly with vibration damping and noise reducing functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210379337.2A CN114775340B (en) | 2022-04-12 | 2022-04-12 | Subway track backing plate assembly with vibration damping and noise reducing functions |
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| Publication Number | Publication Date |
|---|---|
| CN114775340A true CN114775340A (en) | 2022-07-22 |
| CN114775340B CN114775340B (en) | 2024-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210379337.2A Active CN114775340B (en) | 2022-04-12 | 2022-04-12 | Subway track backing plate assembly with vibration damping and noise reducing functions |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115874493A (en) * | 2022-12-08 | 2023-03-31 | 西南交通大学 | Backing plate structure of railway switch track rigidity homogenization |
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