CN217810253U - Track bed resonator, resonance system and track system - Google Patents
Track bed resonator, resonance system and track system Download PDFInfo
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- CN217810253U CN217810253U CN202221908727.6U CN202221908727U CN217810253U CN 217810253 U CN217810253 U CN 217810253U CN 202221908727 U CN202221908727 U CN 202221908727U CN 217810253 U CN217810253 U CN 217810253U
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Abstract
The utility model provides a railway roadbed syntonizer, resonance system and track system sets up in track system, a serial communication port, include: at least one resonance plate arranged on the track bed along the extending direction of the steel rail; the two limiting seats are respectively arranged at the two ends of the resonance plate along the length direction of the resonance plate and are used for limiting the resonance plate; and the damping cushion layer is arranged between the resonance plate and the track bed. The resonant plate is arranged on the track bed, so that the vibration participating quality of the track system can be increased, the natural frequency of the track system is reduced, the vibration transmission is weakened, the influence of the vibration impact generated by the passing of trains on the line on adjacent buildings and special instruments and equipment is further reduced, and the influence of the transformation construction on the existing track line is small. The damping bed course sets up and can absorb the vibration energy that some wheel rail impact transmitted to the railway roadbed between resonant plate and railway roadbed, through the damping bed course of selecting different sizes and static modulus, can change the natural frequency of railway roadbed syntonizer, the vibration frequency of harmonious railway roadbed promotes the damping effect.
Description
Technical Field
The utility model belongs to the technical field of making an uproar falls in the track damping, concretely relates to railway roadbed syntonizer, resonance system and track system.
Background
Track bed vibration damping and isolation measures for rail transit lines generally include: firstly, paving a vibration damping pad under a ballast bed to realize surface support isolation; secondly, point support isolation is realized by arranging the steel spring vibration isolator or the rubber spring vibration isolator in the ballast bed, and the measures can generally achieve better vibration reduction effect after being implemented, so that the influence of vibration impact generated by the passing train on a line on adjacent buildings and special instruments and equipment is reduced.
However, the prior measures for vibration damping and isolation of the ballast bed still have some defects, such as: in some areas, the vibration reduction and isolation measures are limited by factors such as line conditions and building structures, and after the vibration reduction and isolation measures are applied, nearby buildings, special instruments and equipment and the like around the line are still influenced to a certain degree, so that inconvenience is brought to daily life of people. In addition, for the opened and operated line, if the track damping capacity of the relevant unit is enhanced, the higher transformation cost is needed, and the normal operation of the existing line is influenced, so that the economic loss is increased.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a go on for solving above-mentioned problem, aim at provides a railway roadbed syntonizer, adopts the resonance system and the rail system of this syntonizer, the utility model discloses a following technical scheme:
the utility model provides a ballast bed syntonizer sets up in the track system, a serial communication port, include: at least one resonance plate arranged on the track bed along the extending direction of the steel rail; the two limiting seats are respectively arranged at the two ends of the resonance plate along the length direction of the resonance plate and are used for limiting the resonance plate; and the damping cushion layer is arranged between the resonance plate and the track bed.
The utility model provides a ballast bed syntonizer can also have such technical characterstic: wherein, spacing seat includes: a pair of side plates disposed at both sides of the resonance plate; the limiting protrusion is arranged on the side plate and extends from the side plate to the direction of the resonant plate; and the two ends of the top plate are respectively connected to the tops of the side plates, the distance between the limiting bulges is smaller than the width of the resonance plate, the difference value between the distance and the width of the resonance plate is 20-40 mm, the distance between the top plate and the upper surface of the track bed is larger than the thickness of the resonance plate, and the difference value between the distance and the thickness of the resonance plate is 10-20 mm.
The utility model provides a ballast bed syntonizer can also have such technical characterstic: the side plate is an L-shaped plate and comprises a vertical part and a horizontal part extending from the bottom of the vertical part to the direction far away from the resonance plate, a reinforcing rib connecting the vertical part and the horizontal part is arranged on the side surface of the side plate, the horizontal part is provided with a mounting hole, the limiting seat further comprises a bolt matched with the mounting hole for mounting the limiting seat, and the side plate is fixed on the track bed through the bolt for mounting the limiting seat.
The utility model provides a ballast bed syntonizer can also have such technical characterstic: wherein, the two resonant plates are arranged in two, and the two resonant plates are vertically overlapped and fixedly connected.
The utility model provides a ballast bed syntonizer can also have such technical characteristic, still includes: the fastening clamp is used for fixing the vertically stacked resonant plates and comprises an upper half clamp body, a lower half clamp body and fasteners, wherein the upper half clamp body and the lower half clamp body are respectively arranged on the upper side and the lower side of the resonant plates and are connected through the fasteners, and therefore the resonant plates are fixed.
The utility model provides a ballast bed syntonizer can also have such technical characterstic: the single resonant plate comprises a metal plate and a rubber layer coated on the surface of the metal plate, and is 500kg in mass, 2200mm in length, 550mm in width and 80mm in thickness.
The utility model provides a ballast bed syntonizer can also have such technical characterstic: the number of the damping cushion layers is four, the two damping cushion layers form a group, and the two damping cushion layers are symmetrically arranged on the lower surfaces, close to the two ends, of the resonance plates respectively and are integrally formed with the resonance plates.
The utility model provides a resonance system, a serial communication port, include: and the plurality of track bed resonators are arranged along the extending direction of the steel rail, wherein the spacing distance between two adjacent track bed resonators is greater than or equal to 20mm, and the track bed resonators are the track bed resonators.
The utility model provides a rail system, a serial communication port, include: a ballast bed; two steel rails arranged on the track bed in parallel; and the track bed resonator is arranged between the two steel rails, wherein the track bed resonator is the track bed resonator.
Utility model with the functions and effects
According to the utility model discloses a railway roadbed syntonizer because this railway roadbed syntonizer adopts spacing seat to install the resonant plate on the railway roadbed, can increase track system's the quality of participating in the vibration, reduces track system's natural frequency to weaken the vibration transmission, further reduce the influence of the current vibration impact that produces of train on the circuit to closing on building, special instrument and equipment. The damping bed course sets up and can absorb the vibration energy that some wheel rail impact transmitted to the railway roadbed between resonant plate and railway roadbed, through the damping bed course of selecting different sizes and static modulus, can change the natural frequency of railway roadbed syntonizer, the vibration frequency of harmonious railway roadbed promotes the damping effect. In addition, the track bed resonator has a simple structure, is convenient to install, has small influence on the transformation and construction of the existing track line, does not hinder the normal operation of the existing line, and can effectively reduce the transformation cost and reduce the economic loss.
Drawings
Fig. 1 is a front cross-sectional view of a rail system in an embodiment of the invention;
fig. 2 is a perspective structural view of a track system in an embodiment of the present invention;
fig. 3 is a top view of a ballast bed resonator in an embodiment of the present invention;
fig. 4 is a side view of a ballast bed resonator in an embodiment of the invention;
FIG. 5 is a perspective view of the limiting seat according to the embodiment of the present invention;
fig. 6 is a top view of a resonating system in an embodiment of the present invention;
fig. 7 is a flow chart of the installation of the track bed resonator in the embodiment of the present invention; and
fig. 8 is a flow chart of the installation of the limiting seat in the embodiment of the present invention.
Detailed Description
In order to make the utility model realize that the technical means, creation characteristics, achievement purpose and efficiency are easy to understand and understand, the following embodiments and the accompanying drawings are combined to specifically describe the ballast bed resonator, the resonance system and the track system. The details not described in the examples are well known in the art.
< example >
Fig. 1 is a front sectional view of a track system in an embodiment of the present invention, and fig. 2 is a three-dimensional structure diagram of the track system in an embodiment of the present invention.
As shown in fig. 1 and 2, the present embodiment provides a track system 100 including a track bed resonator 10, a track bed 20, a rail 30, and a tie 40. Two rails 30 are mounted parallel to each other on the track bed 20 by symmetrically arranged sleepers 40, and the track bed resonator 10 is arranged between the two rails 30 in the extension direction of the rails 30.
Fig. 3 is a top view of a track bed resonator in an embodiment of the present invention, and fig. 4 is a side view of the track bed resonator in an embodiment of the present invention.
As shown in fig. 3 and 4, the track bed resonator 10 includes a resonance plate 11, a damping pad 12, a stopper 13, and a fastening clip 14.
The resonator plates 11 are disposed on the track bed 20 in the extending direction of the rails 30. The number of the resonator plates 11 is at least 1, and the number of the resonator plates 11 can be increased according to the needs in practical application. The thickness of the resonance plate 11 is 50 mm-80 mm, the total thickness of the resonance plate 11 after being stacked is smaller than the height of the steel rail, and the total width of the resonance plate 11 after being tiled is smaller than the distance between the two steel rails 30, so that the normal operation of a track system is prevented from being influenced.
In the present embodiment, the resonator plate 11 includes a metal plate and a rubber layer coated on the surface of the metal plate. The individual resonator plates 11 have a width of 550mm, a thickness of 80mm, a length of 2200mm and a mass of 500kg, i.e. 227kg per linear meter. In this embodiment, the number of the resonator plates 11 is two, the two resonator plates 11 are vertically stacked and fixedly connected, and the mass per linear meter is 454kg. In practical application, the two resonator plates 11 can also be laid in parallel from left to right, and the mass per linear meter is 454kg.
In this embodiment, the track bed resonator 10 further includes two fastening clips 14, and the two fastening clips 14 are symmetrically disposed in the middle of the resonator plates 11 along the length direction of the resonator plates 11, and are used for fixing the vertically stacked resonator plates 11. The fastening clip 14 includes an upper clip body half 141, a lower clip body half 142, and a fastening member 143. The upper half clamp body 141 and the lower half clamp body 142 are both made of Q235, and the surfaces are subjected to electrostatic spraying anticorrosion treatment. The upper half clip body 141 includes a U-shaped main body portion 1411 and two wing portions 1412 extending outward from both ends of the main body portion 1411, respectively. The fastening member 143 of the present embodiment is an M20 hexagon socket head cap screw, and the wing portion 1412 is provided with a connecting hole 1413 adapted to the fastening member 143. The lower half jig body 142 is identical in structure to the upper half jig body 141, and the upper half jig body 141 and the lower half jig body 142 are symmetrically disposed on upper and lower sides of the stacked resonator plates, respectively, and are connected by a fastening member 143, thereby fixing the resonator plates 11.
The damping cushion 12 is arranged between the resonator plate 11 and the track bed 20, and the width of the damping cushion 12 does not exceed the width of the resonator plate 11. The lower surface of the damping pad layer 12 is provided with a plurality of damping protrusions 121 which are uniformly arranged, and the damping protrusions 121 can reduce the contact area between the lower surface of the damping pad layer 12 and the upper surface of the track bed 20, thereby further reducing the vibration transmission. In this embodiment, the number of the damping cushion layers 12 is four, two damping cushion layers 12 form one group, and two groups of damping cushion layers 12 are respectively symmetrically arranged on the lower surfaces of the two ends of the resonance plate 11 stacked below, and are integrally formed with the resonance plate 11. In practical application, the damping cushion layer 12 and the resonant plate 11 can be separated.
Different types of damping mats 12 have different static moduli, and the natural frequency of the track bed resonator 10 is also different when damping mats 12 of different sizes and static moduli are used. By selecting the damping cushion layer 12 with proper size and static modulus, the natural frequency of the track bed resonator 10 can be effectively adjusted, and a better resonance effect is achieved.
The model and the size numerical value of a plurality of groups of damping cushion layers 12 are preset, the rigidity of the track bed resonator 10 is calculated according to the length, the width and the static modulus of the damping cushion layers 12, and the total rigidity of each linear meter is obtained as follows:
wherein a is the width of the damping shim 12; b is the length of the damping shim 12; n is the number of the damping cushion layers 12; s is the static modulus of the damping cushion 12; l is the length of the resonator plate 11.
The natural frequency of the track bed resonator 10 is further calculated according to the total stiffness per linear meter as follows:
where m is the total mass of the resonator plate 11 per linear meter.
Through calculation and analysis of the damping cushions 12 of different types and sizes, whether the natural frequency f of the corresponding track bed resonator 10 is a proper value or not is judged, and therefore the proper damping cushion 10 is selected.
The two limiting seats 13 are respectively disposed at two ends of the resonant plate 11 along the length direction of the resonant plate 11, and are used for limiting the resonant plate 11.
Fig. 5 is a perspective view of the limiting seat according to the embodiment of the present invention.
As shown in fig. 5, in the present embodiment, the stopper base 13 includes a side plate 131, a stopper protrusion 132, and a top plate 133.
A pair of side plates 131 is provided on both sides of the resonator plate 11. The side plate 131 is an L-shaped plate including a vertical portion 1311 and a horizontal portion 1312 extending from the bottom of the vertical portion 1311 in a direction away from the resonator plate 11, the side surface of the side plate 131 has a reinforcing rib 1313 connecting the vertical portion 1311 and the horizontal portion 1312, and the horizontal portion 1312 has a mounting hole 13121.
The stopper base 13 further includes a stopper base mounting bolt 134 fitted to the mounting hole 13121, and the side plate 131 is fixed to the track bed 20 by the stopper base mounting bolt 134. In this embodiment, the bolt 134 for mounting the stopper seat is an M16 × 190 chemical anchor bolt, the anchoring depth is not less than 125mm, and the design tension value is not less than 13kN.
The stopper projection 132 is provided on the side plate 131 and extends from the side plate 131 in the direction of the resonator plate 11. The spacing between the position-restricting projections 132 is smaller than the width of the resonator plate 11, and the difference between the spacing and the width of the resonator plate 11 is 20mm to 40mm, thereby restricting the resonator plate 11 in the horizontal direction.
Both ends of the top plate 133 are connected to the tops of the pair of side plates 131, respectively. The distance between the top plate 133 and the upper surface of the track bed 20 is greater than the thickness of the resonance plate 11, and the difference between the distance and the thickness of the resonance plate 11 is 10mm to 20mm, so that the resonance plate 11 can freely vibrate vertically in a certain space.
In this embodiment, the material of the limiting seat 13 is 45 # steel, the side plate 131, the limiting protrusion 132 and the top plate 133 are all welded, and the surface of the limiting seat 13 is subjected to electrostatic spraying anti-corrosion treatment.
Fig. 6 is a top view of a resonant system in an embodiment of the invention.
As shown in fig. 6, the resonance system 200 is disposed on the track bed 20, and includes a plurality of track bed resonators 10, the plurality of track bed resonators 10 being arranged along the extending direction of the steel rail 30. The track bed 20 has a plurality of track bed inspection observation holes 21 arranged uniformly in the longitudinal direction. The distance between two adjacent track bed resonators 10 is greater than or equal to 20mm, and at least one of the two adjacent track bed observation holes 21 is not blocked by the track bed resonator 10.
Fig. 7 is a flow chart of the installation of the ballast bed resonator in the embodiment of the present invention.
As shown in fig. 7, the process of installing the track bed resonator 10 specifically includes the following steps:
step S1, determining the installation position of each track bed resonator 10 on a track bed 20 according to design conditions, then detecting internal steel bars of the track bed 20, and determining the preset position of a bolt 134 for installing a limiting seat according to a detection result;
step S2, embedding the stopper mounting bolt 134 in a predetermined position on the track bed 20 and anchoring it;
s3, pre-calculating the natural frequency of the track bed resonator 10 corresponding to the vibration damping cushion layers 12 of different types and sizes, selecting the proper type and size of the vibration damping cushion layer according to the calculation result, then laying the resonance plates 11 and the vibration damping cushion layers 12 at the preset positions on the track bed 20 along the extension direction of the steel rail 30, and fixedly connecting the two resonance plates 11 which are stacked up and down by using the fastening clips 14;
in step S4, the pair of stopper bases 13 are attached to both ends of the resonance plate 11 by the stopper base attaching bolts 134, respectively, to fix the resonance plate 11 to the track bed 20.
Fig. 8 is a flow chart of the installation of the limiting seat in the embodiment of the present invention.
As shown in fig. 8, in step S4, the installation of each limiting seat 13 specifically includes the following steps:
step S4-1, enabling the limiting seat 13 to be close to the end part of the resonance plate 11, moving the limiting seat 13 to enable the horizontal part 1312 of the side plate 131 to be attached to the upper surface of the track bed 20, enabling the vertical part 1311 to be attached to the side surface of the resonance plate 11 close to the steel rail 20, and enabling the limiting protrusion 132 to be attached to the end surface of the resonance plate 11;
step S4-2, adjusting the limit seat 13 to make the mounting hole 13121 on the side plate 131 align with the corresponding limit seat mounting bolt 134 on the track bed 20;
and S4-3, fixing the side plate 131 on the road bed through the limiting seat mounting bolt 134, thereby completing the mounting of the limiting seat 13.
Examples effects and effects
According to the utility model discloses a railway roadbed syntonizer because this railway roadbed syntonizer installs the resonant board on the railway roadbed through spacing seat, can increase track system's the quality of participating in the vibration, reduces track system's natural frequency to weaken the vibration transmission, further reduce the influence of the current vibration impact that produces of train on the circuit to closing on building, special instrument and equipment.
The limiting seat limits the horizontal direction and the vertical direction of the resonance plate, restrains the displacement of the resonance plate and prevents the translation or longitudinal movement of the resonance plate from influencing the driving safety; a gap is arranged between the limiting seat and the top surface of the resonance plate in the vertical direction, so that the resonance plate can freely vibrate in the vertical direction.
The damping bed course sets up and can absorb the vibration energy that some wheel rail impact transmitted to the railway roadbed between resonant plate and railway roadbed, through the damping bed course of selecting different sizes and static modulus, can change the natural frequency of railway roadbed syntonizer, the vibration frequency of harmonious railway roadbed promotes the damping effect.
In addition, the track bed resonator has a simple structure, is convenient to install, has small influence on the transformation construction of the existing track line, does not interfere the normal operation of the existing line, and can effectively reduce the transformation cost and reduce the economic loss.
The above embodiments are merely illustrative of specific embodiments of the present invention, and the present invention is not limited to the description of the above embodiments.
Claims (9)
1. A track bed resonator disposed in a track system, comprising:
at least one resonant plate arranged on the track bed along the extending direction of the steel rail;
the two limiting seats are respectively arranged at two ends of the resonance plate along the length direction of the resonance plate and are used for limiting the resonance plate; and
and the damping cushion layer is arranged between the resonance plate and the ballast bed.
2. The track bed resonator of claim 1, wherein:
wherein, spacing seat includes:
a pair of side plates disposed at both sides of the resonance plate;
the limiting protrusion is arranged on the side plate and extends from the side plate to the direction of the resonant plate;
a top plate, two ends of which are respectively connected with the top of the side plate,
the distance between the limiting bulges is smaller than the width of the resonance plate, the difference value between the distance and the width of the resonance plate is 20-40 mm,
the distance between the top plate and the upper surface of the ballast bed is larger than the thickness of the resonant plate, and the difference between the distance and the thickness of the resonant plate is 10-20 mm.
3. The track bed resonator of claim 2, wherein:
wherein the side plate is an L-shaped plate and comprises a vertical part and a horizontal part extending from the bottom of the vertical part to the direction far away from the resonance plate,
the side surface of the side plate is provided with a reinforcing rib connecting the vertical part and the horizontal part,
the horizontal portion is provided with a mounting hole,
the limiting seat also comprises a bolt for installing the limiting seat matched with the installation hole,
the side plate is fixed on the road bed through the limiting seat by bolts.
4. The track bed resonator of claim 1, wherein:
the two resonance plates are vertically overlapped and fixedly connected.
5. The ballast bed resonator of claim 4, further comprising:
the fastening clamp is used for fixing the vertically superposed resonant plates and comprises an upper half clamp body, a lower half clamp body and a fastener,
the upper half clamp body and the lower half clamp body are respectively arranged on the upper side and the lower side of the resonance plate and are connected through the fastening piece, so that the resonance plate is fixed.
6. The track bed resonator of claim 1, wherein:
wherein the resonance plate comprises a metal plate and a rubber layer coated on the surface of the metal plate,
the mass of a single resonance plate is 500kg, the length is 2200mm, the width is 550mm, and the thickness is 80mm.
7. The track bed resonator of claim 1, wherein:
the vibration damping cushion layer comprises a plurality of vibration damping cushion layers, wherein the number of the vibration damping cushion layers is four, the number of the vibration damping cushion layers is two, the vibration damping cushion layers are in a group, and the two vibration damping cushion layers are symmetrically arranged on the lower surfaces, close to two ends, of the resonance plate respectively and are integrally formed with the resonance plate.
8. A resonant system, comprising:
a plurality of track bed resonators arranged along the extending direction of the steel rail,
wherein the spacing distance between two adjacent track bed resonators is greater than or equal to 20mm,
the track bed resonator is as claimed in any one of claims 1 to 7.
9. A track system, comprising:
a ballast bed;
two steel rails arranged on the track bed in parallel; and
a track bed resonator disposed between the two rails,
wherein the track bed resonator is as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221908727.6U CN217810253U (en) | 2022-07-23 | 2022-07-23 | Track bed resonator, resonance system and track system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221908727.6U CN217810253U (en) | 2022-07-23 | 2022-07-23 | Track bed resonator, resonance system and track system |
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| CN217810253U true CN217810253U (en) | 2022-11-15 |
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| CN202221908727.6U Active CN217810253U (en) | 2022-07-23 | 2022-07-23 | Track bed resonator, resonance system and track system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024021443A1 (en) * | 2022-07-23 | 2024-02-01 | 浙江天铁实业股份有限公司 | Vibration damping system for track bed, track bed slab, track bed, and rail system |
-
2022
- 2022-07-23 CN CN202221908727.6U patent/CN217810253U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024021443A1 (en) * | 2022-07-23 | 2024-02-01 | 浙江天铁实业股份有限公司 | Vibration damping system for track bed, track bed slab, track bed, and rail system |
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