CN212611730U - Sleeper with vibration damping and energy collecting characteristics - Google Patents
Sleeper with vibration damping and energy collecting characteristics Download PDFInfo
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- CN212611730U CN212611730U CN202021328609.9U CN202021328609U CN212611730U CN 212611730 U CN212611730 U CN 212611730U CN 202021328609 U CN202021328609 U CN 202021328609U CN 212611730 U CN212611730 U CN 212611730U
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Abstract
The utility model discloses a sleeper with vibration reduction and energy acquisition characteristics, which comprises a sleeper main body and a vibration reduction energy collection component arranged in the sleeper main body, wherein the vibration reduction energy collection component comprises a steel box chamber, a steel pipe, a mass block, a spring, a damper and a piezoelectric unit which 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. Adopt the utility model discloses, can realize making the vibration that passes down to the railway roadbed obtain fine decay to the control that passes to the sleeper vibration, can also realize vibration energy recycle.
Description
Technical Field
The utility model belongs to the technical field of the rail transit, more specifically say, relate to a sleeper with damping and energy harvesting characteristic.
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.
SUMMERY OF THE UTILITY MODEL
To current rail system, the train advances the in-process and reaches the comparatively strong current situation of sleeper vibration, the utility model provides a sleeper with damping and energy acquisition characteristic can realize the control to reaching the sleeper vibration, effectively makes the vibration that passes down to the railway roadbed obtain fine decay, can also realize vibration energy recycle.
In order to solve the technical problem, the technical scheme of the utility model 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 the utility model discloses an optimal scheme, damping collection can the subassembly be equipped with the multiunit and follow the length direction equidistance interval of sleeper main part sets up.
As the preferred scheme of the utility model, piezoelectric unit is including the polar plate that is located upper and lower both sides and the piezoelectric material board that is located the centre, the polar plate is connected with the outside rectifier electricity of sleeper.
As a preferred embodiment of the present invention, the piezoelectric material plate is made of a high piezoelectric coefficient material.
As the preferred scheme of the utility model, the attenuator is equipped with two, two the attenuator set up symmetrically in the left and right sides of spring.
As the preferred scheme of the utility model, the attenuator is magnetic current becomes the attenuator.
As the preferred scheme of the utility model, the center department of quality piece is equipped with the guiding hole, the guiding hole with steel pipe sliding connection.
As the preferred proposal of the utility model, the spring sleeve is arranged on the steel pipe.
As a preferable aspect of the present invention, the mass block is made of a high-density metal material.
As the utility model discloses an optimal scheme, be equipped with many prestressed reinforcement in the sleeper main part, many prestressed reinforcement with the length direction of sleeper main part runs through for sharp extending direction wholly the sleeper main part, and enclose and establish the outside of steel case room, many prestressed reinforcement is connected by the stirrup and is formed integratively.
Implement the utility model provides a pair of sleeper with damping and energy harvesting characteristic compares with prior art, has following beneficial effect:
the utility model discloses a set up the energy collecting assembly of damping in the sleeper main part, equivalent to the damping when having increased the sleeper vibration, can effectively consume the vibration energy that the rail transmitted to the sleeper, and then make the vibration that descends to the railway roadbed obtain fine decay; 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 solution of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.
Fig. 1 is a schematic structural diagram of a sleeper 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 described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 to 3, a preferred embodiment of the present invention is a sleeper having vibration damping and energy harvesting characteristics, which 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 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 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 utility model, the vibration-damping energy-collecting component 2 is arranged in the sleeper main body 1, which is equivalent to increasing the damping of the sleeper during vibration, so that the vibration energy transmitted from the steel rail to the sleeper can be effectively consumed, and the vibration transmitted to the track bed can be 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 is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.
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 |
|---|---|---|---|
| CN202021328609.9U CN212611730U (en) | 2020-07-08 | 2020-07-08 | Sleeper with vibration damping and energy collecting characteristics |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021328609.9U CN212611730U (en) | 2020-07-08 | 2020-07-08 | Sleeper with vibration damping and energy collecting characteristics |
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| CN212611730U true CN212611730U (en) | 2021-02-26 |
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| CN202021328609.9U Active CN212611730U (en) | 2020-07-08 | 2020-07-08 | Sleeper with vibration damping and energy collecting characteristics |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114737420A (en) * | 2021-11-03 | 2022-07-12 | 无锡希声科技有限公司 | Negative-rigidity steel rail damper and steel rail damping system |
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2020
- 2020-07-08 CN CN202021328609.9U patent/CN212611730U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114737420A (en) * | 2021-11-03 | 2022-07-12 | 无锡希声科技有限公司 | Negative-rigidity steel rail damper and steel rail damping system |
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