CN111877057A - Sleeper with vibration damping and energy collecting characteristics - Google Patents
Sleeper with vibration damping and energy collecting characteristics Download PDFInfo
- Publication number
- CN111877057A CN111877057A CN202010651837.8A CN202010651837A CN111877057A CN 111877057 A CN111877057 A CN 111877057A CN 202010651837 A CN202010651837 A CN 202010651837A CN 111877057 A CN111877057 A CN 111877057A
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- sleeper
- vibration
- mass block
- steel
- energy
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- 241001669679 Eleotris Species 0.000 title claims abstract description 62
- 238000013016 damping Methods 0.000 title claims description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 55
- 239000010959 steel Substances 0.000 claims abstract description 55
- 239000000463 material Substances 0.000 claims description 12
- 238000003306 harvesting Methods 0.000 claims description 11
- 230000002787 reinforcement Effects 0.000 claims description 11
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 230000002238 attenuated effect Effects 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
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
- E01B19/003—Means for reducing the development or propagation 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
- E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
- E01B3/28—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone
- E01B3/32—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone with armouring or reinforcement
- E01B3/34—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone with armouring or reinforcement with pre-tensioned armouring or reinforcement
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/32—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/186—Vibration harvesters
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Power Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a sleeper with vibration reduction and energy collection characteristics, which comprises a sleeper main body and a vibration reduction and energy collection assembly arranged in the sleeper main body, wherein the vibration reduction and energy collection assembly comprises a steel box chamber, a steel pipe, a mass block, a spring, a damper and a piezoelectric unit, wherein the steel pipe, the mass block, the spring, the damper and the piezoelectric unit are arranged in the steel box chamber; the steel pipes are vertically arranged, and the upper ends and the lower ends of the steel pipes are respectively and rigidly connected with a top plate and a bottom plate of the steel box chamber; the mass block is connected with the steel pipe in a sliding manner, the upper end of the spring is rigidly connected with the lower surface of the mass block, and the lower end of the spring is rigidly connected with the bottom plate of the steel box chamber; the two dampers are symmetrically arranged, the upper ends of the dampers are rigidly connected with the lower surface of the mass block, and the lower ends of the dampers are rigidly connected with the bottom plate of the steel box chamber; the piezoelectric unit is arranged on the upper surface of the mass block and is electrically connected with the rectifier outside the sleeper. By adopting the invention, the control on the vibration transmitted to the sleeper can be realized, the vibration transmitted to the track bed can be well attenuated, and the recovery and utilization of the vibration energy can be realized.
Description
Technical Field
The invention belongs to the technical field of rail transit, and particularly relates to a sleeper with vibration reduction and energy collection characteristics.
Background
With the rapid development of rail transit in China, the problems of vibration and noise induced when a train runs are more and more prominent. When the train runs at a high speed, the track is induced to generate large vibration and noise, and meanwhile, the track vibration can react on the vehicle to cause the vehicle to vibrate. The vibration is a source of noise, and the purpose of reducing the noise can be achieved by reducing the vibration of the structure.
The rail structure vibration reduction technology at the present stage comprises a sleeper, a vibration reduction fastener, a vibration reduction ballast pad and the like, the working mechanism of the sleeper, the vibration reduction fastener, the vibration reduction ballast pad and the vibration reduction fastener mainly plays a role in changing the rigidity of the rail structure, but the devices have the problems of high manufacturing cost or aggravation of vibration of a vehicle body, and therefore a novel rail vibration reduction structure needs to be provided.
Disclosure of Invention
Aiming at the current situation that the vibration transmitted to the sleeper in the process of train advancing is stronger in the existing track system, the invention provides the sleeper with the vibration reduction and energy acquisition characteristics, which can realize the control of the vibration transmitted to the sleeper, effectively attenuate the vibration transmitted to a track bed well and realize the recycling of the vibration energy.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a sleeper with vibration reduction and energy collection characteristics comprises a sleeper main body and a vibration reduction energy collection assembly arranged in the sleeper main body, wherein the vibration reduction energy collection assembly comprises a steel box chamber, a steel pipe, a mass block, a spring, a damper and a piezoelectric unit, wherein the steel pipe, the mass block, the spring, the damper and the piezoelectric unit are arranged in the steel box chamber; the steel pipes are vertically arranged, and the upper ends and the lower ends of the steel pipes are respectively and rigidly connected with a top plate and a bottom plate of the steel box chamber; the mass block is in sliding connection with the steel pipe, the upper end of the spring is rigidly connected with the lower surface of the mass block, and the lower end of the spring is rigidly connected with the bottom plate of the steel box chamber; the upper end of the damper is rigidly connected with the lower surface of the mass block, and the lower end of the damper is rigidly connected with the bottom plate of the steel box chamber; the piezoelectric unit is arranged on the upper surface of the mass block and is electrically connected with a rectifier outside the sleeper.
As a preferable scheme of the invention, the vibration-damping energy-collecting assemblies are provided in a plurality of groups and are arranged at equal intervals along the length direction of the sleeper main body.
In a preferred embodiment of the present invention, the piezoelectric unit includes pole plates located at the upper and lower sides and a piezoelectric material plate located in the middle, and the pole plates are electrically connected with a rectifier outside the sleeper.
As a preferable aspect of the present invention, the piezoelectric material plate is made of a high piezoelectric coefficient material.
As a preferable aspect of the present invention, two dampers are provided, and the two dampers are symmetrically provided on both left and right sides of the spring.
As a preferable scheme of the invention, the damper is a magnetorheological damper.
As a preferable scheme of the invention, a guide hole is arranged at the center of the mass block, and the guide hole is in sliding connection with the steel pipe.
In a preferred embodiment of the present invention, the spring is sleeved on the steel pipe.
As a preferable aspect of the present invention, the mass block is made of a high-density metal material.
As a preferable scheme of the present invention, a plurality of prestressed reinforcements are provided in the sleeper main body, the plurality of prestressed reinforcements penetrate the whole sleeper main body with the length direction of the sleeper main body as a linear extending direction, and are enclosed outside the steel box chamber, and the plurality of prestressed reinforcements are connected by stirrups to form a whole.
Compared with the prior art, the sleeper with the vibration reduction and energy acquisition characteristics provided by the invention has the following beneficial effects:
according to the invention, the vibration-damping energy-collecting component is arranged in the sleeper main body, which is equivalent to increasing the damping of the sleeper during vibration, so that the vibration energy transmitted to the sleeper by the steel rail can be effectively consumed, and the vibration transmitted to a track bed is well attenuated; meanwhile, the piezoelectric unit is arranged, so that the conversion from vibration energy to electric energy can be realized, and the electric energy is stored after being processed by the rectifier and is used for facilities such as illumination along the railway; moreover, the vibration has the characteristics of fast high-frequency attenuation and slow low-frequency attenuation, and the sleeper can effectively absorb the vibration with the lower frequency of 0-200 Hz; in addition, this sleeper collects the energy subassembly with the damping and is integrated as an organic whole, and its structure has simple structure and the good characteristics of durability.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.
FIG. 1 is a schematic structural view of a tie having vibration damping and energy harvesting features provided by the present invention;
FIG. 2 is a schematic structural diagram of a vibration damping and energy collecting assembly;
FIG. 3 is a schematic structural view of a piezoelectric unit;
fig. 4 is a schematic view of the connection of the prestressed reinforcement bars to the stirrups.
The figure shows the marks 1, a sleeper main body, 2, a vibration damping and energy collecting assembly, 3, a steel box chamber, 4, a steel pipe, 5, a mass block, 6, a spring, 7, a damper, 8, a piezoelectric unit, 81, a polar plate, 82, a piezoelectric material plate, 9, a rectifier, 10, a prestressed reinforcement, 11 and a stirrup.
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 3, a sleeper having vibration damping and energy harvesting characteristics according to a preferred embodiment of the present invention includes a sleeper body 1 and a vibration damping energy collecting assembly 2 disposed in the sleeper body 1, wherein the vibration damping energy collecting assembly 2 includes a steel box chamber 3, and a steel pipe 4, a mass block 5, a spring 6, a damper 7 and a piezoelectric unit 8 disposed in the steel box chamber 3; the steel pipe 4 is vertically arranged, and the upper end and the lower end of the steel pipe are respectively and rigidly connected with a top plate and a bottom plate of the steel box chamber 3; the mass block 5 is in sliding connection with the steel pipe 4, the upper end of the spring 6 is rigidly connected with the lower surface of the mass block 5, and the lower end of the spring 6 is rigidly connected with the bottom plate of the steel box chamber 3; the upper end of the damper 7 is rigidly connected with the lower surface of the mass block 5, and the lower end of the damper 7 is rigidly connected with the bottom plate of the steel box chamber 3; the piezoelectric unit 8 is arranged on the upper surface of the mass block 5 and is electrically connected with a rectifier 9 outside the sleeper. The steel pipe 4 can be used as a vertical vibration guide structure of the mass block 5 on one hand, and can improve the vertical rigidity of the steel box chamber 3 on the other hand, so that the rigidity reduction caused by the loss of the part of concrete is compensated; when the train passes, the spring 6 provides restoring force for the mass block 5 to vibrate up and down, and when the train is in a static state, the spring 6 supports the weight of the mass block 5; the damper 7 can increase the damping when the mass block 5 resonates; the piezo-element 8 is capable of converting vibrational energy into electrical energy. Therefore, when vehicle-induced vibration is transmitted to the sleeper, the vibration of the sleeper can drive the vibration of the vibration reduction energy collection assembly 2 arranged in the sleeper, when the mass block 5 is displaced up and down along the steel pipe 4 under the action of the spring 6, a part of vibration energy can be consumed in the damper 7, and a part of vibration energy is introduced into the piezoelectric unit 8 to realize the conversion of the vibration energy into electric energy.
Therefore, according to the sleeper provided by the embodiment of the invention, the vibration-damping energy-collecting component 2 is arranged in the sleeper main body 1, namely, the damping of the sleeper during vibration is increased, the vibration energy transmitted to the sleeper by the steel rail can be effectively consumed, and the vibration transmitted to a track bed is well attenuated; meanwhile, the conversion from vibration energy to electric energy can be realized, and the electric energy is stored after being processed by the rectifier 9 and is used for facilities such as illumination along the railway; moreover, the vibration has the characteristics of fast high-frequency attenuation and slow low-frequency attenuation, and the sleeper can effectively absorb the vibration with the lower frequency of 0-200 Hz; in addition, this sleeper is integrated as an organic whole with damping energy collecting component 2, and its structure has simple structure and the good characteristics of durability.
Illustratively, in order to better absorb vibration energy of the whole sleeper, the vibration damping energy collecting assemblies 2 are provided with a plurality of groups and are arranged at equal intervals along the length direction of the sleeper main body 1.
Illustratively, as shown in fig. 3, the piezoelectric unit 8 includes plates 81 located at the upper and lower sides and a piezoelectric material plate 82 located at the middle, and the plates 81 are electrically connected with the rectifier 9 outside the sleeper. Therefore, the piezoelectric material plate 82 deforms along the vibration direction under the condition of resonance with the mass block 5, and the polar plates 81 on the two sides generate equal-quantity different-sign charges under the deformation action of the piezoelectric material plate 82, so that the conversion from mechanical energy to electric energy is realized, and then the mechanical energy is processed by the rectifier 9 and stored.
Illustratively, the piezoelectric material plate 82 is made of a high piezoelectric coefficient material, preferably a piezoelectric ceramic or quartz crystal.
Exemplarily, the center of the mass block 5 is provided with a guide hole, the guide hole is in sliding connection with the steel pipe 4, the spring 6 is sleeved on the steel pipe 4, two dampers 7 are provided, and the two dampers 7 are symmetrically arranged on the left side and the right side of the spring 6. With such a design, the stability of the up-and-down movement of the mass 5 can be improved, and the vibration energy of the mass 5 can be better absorbed by the spring 6 and the damper 7.
Illustratively, the damper 7 is preferably a magnetorheological damper, and the damping coefficient of the damper 7 is adjusted in a square manner.
Illustratively, the mass 5 is made of a high-density metal material, preferably lead or iron, which is advantageous for saving space.
Exemplarily, as shown in fig. 4, in order to improve the structural strength of the sleeper body 1, a plurality of prestressed reinforcements 10 are arranged in the sleeper body 1, and the prestressed reinforcements 10 extend through the whole sleeper body 1 in a linear extending direction, and surround the steel box 3, and the plurality of prestressed reinforcements 10 are connected by stirrups 11 to form a whole.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.
Claims (10)
1. A sleeper with vibration reduction and energy collection characteristics is characterized by comprising a sleeper main body and a vibration reduction and energy collection assembly arranged in the sleeper main body, wherein the vibration reduction and energy collection assembly comprises a steel box chamber, a steel pipe, a mass block, a spring, a damper and a piezoelectric unit, wherein the steel pipe, the mass block, the spring, the damper and the piezoelectric unit are arranged in the steel box chamber; the steel pipes are vertically arranged, and the upper ends and the lower ends of the steel pipes are respectively and rigidly connected with a top plate and a bottom plate of the steel box chamber; the mass block is in sliding connection with the steel pipe, the upper end of the spring is rigidly connected with the lower surface of the mass block, and the lower end of the spring is rigidly connected with the bottom plate of the steel box chamber; the upper end of the damper is rigidly connected with the lower surface of the mass block, and the lower end of the damper is rigidly connected with the bottom plate of the steel box chamber; the piezoelectric unit is arranged on the upper surface of the mass block and is electrically connected with a rectifier outside the sleeper.
2. Tie with vibration damping and energy harvesting features according to claim 1 wherein said vibration damping and energy harvesting assemblies are provided in a plurality of groups and are spaced equidistantly along the length of said tie body.
3. Sleeper having damping and energy harvesting properties according to claim 1 or 2, wherein the piezoelectric unit comprises plates on the upper and lower sides and a plate of piezoelectric material in the middle, said plates being electrically connected to a rectifier outside the sleeper.
4. A tie having vibration damping and energy harvesting properties according to claim 3 wherein said plate of piezoelectric material is made of a high piezoelectric coefficient material.
5. Sleeper having vibration damping and energy harvesting characteristics as claimed in claim 1 or 2, wherein said dampers are provided in two, and said dampers are symmetrically provided on left and right sides of said spring.
6. A tie having vibration damping and energy harvesting features as claimed in claim 1 or claim 2 wherein said damper is a magnetorheological damper.
7. Sleeper having damping and energy harvesting properties according to claim 1 or 2, wherein said mass has a guiding hole in the centre, said guiding hole being slidably connected to said steel tube.
8. Sleeper having damping and energy harvesting properties according to claim 1 or 2, characterized in that said spring is sleeved on said steel tube.
9. Sleeper having damping and energy-harvesting properties according to claim 1 or 2, characterized in that said mass is made of a high-density metallic material.
10. The sleeper having vibration damping and energy collecting characteristics as claimed in claim 1 or 2, wherein a plurality of prestressed reinforcements are provided in said sleeper main body, said plurality of prestressed reinforcements extend through said sleeper main body in a direction in which a length direction of said sleeper main body extends as a straight line and surround an outer side of said steel chamber, and said plurality of prestressed reinforcements are integrally connected by a stirrup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010651837.8A CN111877057A (en) | 2020-07-08 | 2020-07-08 | Sleeper with vibration damping and energy collecting characteristics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010651837.8A CN111877057A (en) | 2020-07-08 | 2020-07-08 | Sleeper with vibration damping and energy collecting characteristics |
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| Publication Number | Publication Date |
|---|---|
| CN111877057A true CN111877057A (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010651837.8A Pending CN111877057A (en) | 2020-07-08 | 2020-07-08 | Sleeper with vibration damping and energy collecting characteristics |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112663407A (en) * | 2020-12-16 | 2021-04-16 | 北京铁科特种工程技术有限公司 | Intelligent coarse particle for vibration reduction and power generation |
| CN113026437A (en) * | 2021-03-29 | 2021-06-25 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Magneto-electric coupling nonlinear vibration reduction and power generation coarse particle device for transition section of railway road and bridge |
| CN113111448A (en) * | 2021-03-09 | 2021-07-13 | 广州地铁设计研究院股份有限公司 | Design method of vibration-damping energy-collecting sleeper |
-
2020
- 2020-07-08 CN CN202010651837.8A patent/CN111877057A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112663407A (en) * | 2020-12-16 | 2021-04-16 | 北京铁科特种工程技术有限公司 | Intelligent coarse particle for vibration reduction and power generation |
| CN112663407B (en) * | 2020-12-16 | 2022-08-09 | 北京铁科特种工程技术有限公司 | Intelligent coarse particle for vibration reduction and power generation |
| CN113111448A (en) * | 2021-03-09 | 2021-07-13 | 广州地铁设计研究院股份有限公司 | Design method of vibration-damping energy-collecting sleeper |
| CN113026437A (en) * | 2021-03-29 | 2021-06-25 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Magneto-electric coupling nonlinear vibration reduction and power generation coarse particle device for transition section of railway road and bridge |
| CN113026437B (en) * | 2021-03-29 | 2022-09-20 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Magneto-electric coupling nonlinear vibration reduction and power generation coarse particle device for transition section of railway road and bridge |
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