CN114318964A - Rigidity damping adjustable railway fastener - Google Patents
Rigidity damping adjustable railway fastener Download PDFInfo
- Publication number
- CN114318964A CN114318964A CN202111622478.4A CN202111622478A CN114318964A CN 114318964 A CN114318964 A CN 114318964A CN 202111622478 A CN202111622478 A CN 202111622478A CN 114318964 A CN114318964 A CN 114318964A
- Authority
- CN
- China
- Prior art keywords
- base plate
- magnetic
- plate
- fastener
- steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses a railway fastener with adjustable rigidity damping, which comprises: the middle part of the fastener body is provided with a through hole; a composite steel base plate and a magnetorheological elastomer base plate are sequentially arranged in the through hole from top to bottom, and an encapsulation magnetic control element pre-arranged in the sleeper is arranged below the magnetorheological elastomer base plate. The railway fastener can adjust the elastic property of the fastener system regionally and individually according to the line operation conditions, and the effects of attenuating impact load, controlling the vibration of a track structure and reducing the structure noise of the fastener are realized.
Description
Technical Field
The invention relates to the field of railway engineering, in particular to a railway fastener with adjustable rigidity damping.
Background
With the rapid development of rail transit, a large number of rail transit vibration attenuation and noise reduction schemes are applied, in a ballastless track structure, a fastener and a lower rail cushion plate thereof are used as main sources of track elasticity and damping, and the material and structural properties of the fastener influence key problems such as vehicle-track coupling dynamic action, track structure load distribution characteristics, railway system vibration noise control and the like.
The rigidity and the damping of the elastic base plate of the fastener are used as main characteristic parameters of a fastener system, the performance of the fastener in the aspects of load buffering, vibration transmission, noise control and the like is directly represented, good vibration damping performance cannot be provided when the rigidity of the rail fastener is high, rail vibration and noise are increased, the constraint capacity of a rail structure on a steel rail is reduced and wheel rail abrasion is increased when the rigidity of the fastener is low, and the wheel rail system damage can be caused. In practical application, the rigidity and damping parameters of the fastener need to be reasonably configured according to different line types, train axle weights, requirements for vibration reduction and noise reduction and the like.
The prior art mainly aims to design the elasticity of a fastener according to the conditions of line service conditions, vehicle load states and the like. Due to the limitation of the current technology, the rigidity and damping parameters of the rail fastener cannot be changed after the design is completed, and cannot be adjusted according to the real-time state of the change of the rail, the vehicle or the environment.
Along with the extension of service time, the operating conditions and the operation requirements of the line are changed, so that a fastener system capable of adjusting the rigidity damping characteristics in real time is needed, the individual requirements of different sections are met, and the function maximization of the fastener system is realized.
Disclosure of Invention
The invention aims to provide a railway fastener with adjustable rigidity and damping, which changes the elasticity of a magnetorheological elastomer base plate by adjusting a magnetic field so as to change the overall elasticity characteristic of the fastener, so that the railway fastener can regionally and individually adjust the elasticity property of a fastener system according to the line operation condition, and the effects of damping impact load, controlling the vibration of a track structure and reducing the structure noise of the fastener are realized.
In order to achieve the above object, the present invention provides a railway fastener with adjustable stiffness damping, comprising: the fastener comprises a fastener body, wherein a through hole is formed in the middle of the fastener body; a composite steel base plate and a magnetorheological elastomer base plate are sequentially arranged in the through hole from top to bottom, and an encapsulation magnetic control element pre-arranged in the sleeper is arranged below the magnetorheological elastomer base plate.
Preferably, the encapsulated magnetic control element is assembled by a magnetic core, a magnetic induction coil and an encapsulating shell; the magnetic core is of a U-shaped structure with an upward opening, and the magnetic induction coil is wound on the magnetic core and enables the magnetic core to form magnetic poles on the upper surfaces of two ends of the magnetic core; the packaging shell is used for packaging the magnetic core and the magnetic induction coil, and two ends of the magnetic core can be exposed out of the upper surface of the packaging shell.
Preferably, the magnetorheological elastomeric pad comprises: a matrix of elastomeric material and magnetic particles; the magnetorheological elastomer base plate is prepared by adding elastomer materials into the magnetic particles and then performing magnetic field prefabrication trial production.
Preferably, the upper surface of the magnetorheological elastomer base plate is provided with a plurality of upper grooves parallel to the steel rails, the lower surface of the magnetorheological elastomer base plate is provided with a plurality of lower grooves parallel to the steel rails, and the upper grooves and the lower grooves are arranged at intervals;
or a groove is arranged in the middle of the upper surface of the magnetorheological elastomer base plate, and two sides of the groove are provided with flat plates corresponding to the magnetic poles of the packaging magnetic control element.
Preferably, the composite steel backing plate is formed by compounding a steel plate and rubber; the lower layer of the composite steel base plate is a steel plate which can be used in cooperation with the packaging magnetic control element and can form a magnetic field loop; the upper layer of the composite steel base plate is an insulating polymer layer.
Preferably, a rail bottom slope preset with a set ratio is formed on the upper surface of the steel plate.
Preferably, the fastener body comprises an iron base plate, an anchor bolt and an insulating buffer base plate arranged below the iron base plate, and the through hole penetrates through the iron base plate and the insulating buffer base plate; the two ends of the iron base plate are provided with buckling assemblies used for buckling and pressing the steel rail on the lower base plate of the rail, and the anchoring bolts penetrate through the iron base plate and the insulating buffer base plate and then are installed in embedded sleeves in the sleeper.
Preferably, the buckling assembly comprises an elastic strip, a T-shaped bolt and an insulating gauge block, the T-shaped bolt penetrates through the iron base plate from bottom to top and locks and buckles the elastic strip through a nut on the insulating gauge block, and the insulating gauge block is buckled on a rail shoulder of the steel rail.
Preferably, both ends of the iron base plate and the insulating buffer base plate in the extending direction of the steel rail protrude outwards to form a convex part, and a plurality of protruding strips used for limiting the displacement of the iron base plate are formed on the edge of the insulating buffer base plate in an upward protruding mode.
Preferably, the composite steel base plate is provided with a rail lower height-adjusting base plate.
According to the technical scheme, the railway fastener with adjustable rigidity and damping can be applied to ballastless track structures of various lines such as urban rail transit, inter-city railway and the like, the size of a magnetic field can be adjusted through the packaging magnetic control element preset in the sleeper, so that the function of adjusting the rigidity and damping characteristics of a fastener system is realized, the elastic property of the fastener system can be adjusted regionally and individually according to line operation conditions, and the effects of damping impact load, controlling track structure vibration and reducing structure noise of the fastener are realized.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a top plan view of a preferred embodiment of a railway fastener after assembly;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a top view of a preferred embodiment of an iron shim plate;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is a top view of a preferred embodiment of an insulating bumper pad;
FIG. 6 is a top view of a preferred embodiment of a composite steel shim plate;
FIG. 7 is a sectional view A-A of FIG. 6;
FIG. 8 is a top view of a preferred embodiment of a magnetorheological elastomeric pad;
FIG. 9 is a sectional view A-A of FIG. 8;
FIG. 10 is a top view of a preferred embodiment of an encapsulated magnetron element;
FIG. 11 is a sectional view taken along line A-A of FIG. 10;
FIG. 12 is a top view of another preferred embodiment of a magnetorheological elastomeric pad;
fig. 13 is a sectional view a-a of fig. 12.
Description of the reference numerals
1-packaging the magnetic control element; 2-magnetorheological elastomer backing plate; 3-a composite steel backing plate; 4-rail lower elevation base plate; 5-T bolt; 6-a nut; 7-spring bars; 8-iron backing plate; 9-insulating buffer backing plate; 10-a flat washer; 11-an anchor bolt; 12-a spring washer; 13-flat cushion blocks; 14-embedding a sleeve; 15-a first via; 16-a second via; 17-an insulating rubber layer; 18-steel plate; 19-upper groove; 20-lower groove; 21-a sleeper; 22-steel rail; 23-a package housing; 24-an insulating gauge block; 25-a magnetic core; 26-a magnetic induction coil; 27-trenches.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, unless otherwise specified, directional words included in terms such as "upper, lower, left, right, front, rear, inner, and outer" and the like merely represent the directions of the terms in a normal use state or are colloquially known by those skilled in the art, and should not be construed as limiting the terms.
Referring to fig. 1-11, an adjustable stiffness damping railway fastener and its components are shown, the railway fastener comprising: the fastener comprises a fastener body, wherein a through hole is formed in the middle of the fastener body; the composite steel base plate 3 and the magnetorheological elastomer base plate 2 are sequentially arranged in the through hole from top to bottom, and the packaging magnetic control element 1 preset in the sleeper 21 is arranged below the magnetorheological elastomer base plate 2.
Through the implementation of the technical scheme, the railway fastener with adjustable rigidity and damping can be applied to ballastless track structures of various lines such as urban rail transit, inter-city railway and the like, the size of a magnetic field can be adjusted through the packaging magnetic control element 1 preset in the sleeper 21, so that the function of adjusting the rigidity and damping characteristic of the fastener system is realized, the elastic property of the fastener system can be adjusted regionally and individually according to line operation conditions, and the effects of damping impact load, controlling track structure vibration and reducing structure noise of the fastener are realized. Specifically, the packaging magnetic control element 1, the magnetorheological elastomer base plate 2 and the composite steel base plate 3 are key parts for realizing the adjustable rigidity damping characteristic of the fastener, a magnetic field loop is formed by matching the packaging magnetic control element 1 and the composite steel base plate 3, the magnetic field intensity is controllable by adjusting the current of the packaging magnetic control element 1, the energy storage modulus and the energy consumption modulus of the magnetorheological elastomer base plate 2 can be adjusted in real time under the action of a magnetic field, and therefore the adjustable and controllable rigidity damping characteristic of the fastener base plate is realized.
In this embodiment, in order to further provide a packaged magnetic control element 1, the packaged magnetic control element 1 is assembled by a magnetic core 25, a magnetic induction coil 26 and a packaging shell 23; the magnetic core 25 is of a U-shaped structure with an upward opening, and the magnetic induction coil is wound on the magnetic core 25 and enables the magnetic core 25 to form magnetic poles on the upper surfaces of two ends of the magnetic core 25; the packaging shell 23 is used for packaging the magnetic core 25 and the magnetic induction coil 26, and two ends of the magnetic core 25 can be exposed out of the upper surface of the packaging shell 23. The magnetic induction coil is electrified and has the current passing through, the magnitude of the current in the magnetic induction coil is controlled through an external control circuit, the magnitude of a magnetic field can be adjusted, the magnetic core is of a U-shaped structure with an upward opening, magnetic poles are formed on the upper surfaces of two ends of the magnetic core, and a directional magnetic loop is formed between the magnetic core and the composite steel backing plate 3. In one embodiment, in order to increase the regulation effect, the length and the width of the magnetic core with the U-shaped structure are the same as those of the composite steel shim plate 3 and the magnetorheological elastomer shim plate 2.
In specific implementation, each of the encapsulated magnetic control elements 1 is connected to an external regulation and control system, and the encapsulated magnetic control elements 1 are macroscopically regulated and controlled by the external regulation and control system, and of course, an automatic regulation and control program may be set, for example: the vibration acceleration sensor is installed on each fastener, the vibration acceleration sensor is electrically connected with an external regulation and control system, when the vibration acceleration sensor detects the vibration of the corresponding fastener, a signal is fed back to the automatic regulation and control program, the automatic regulation and control program automatically regulates and controls the current of the magnetic induction coil in the packaging magnetic control element 1, the magnetic field of the packaging magnetic control element 1 is adjusted, the automatic regulation and control program is stopped until the vibration sensed by the sensor is attenuated to normal, and thus, the work load can be reduced by macroscopically regulating and controlling the whole track through the automatic regulation and control program, and the difficulty of the adjustment work is reduced. Of course, if the vibration accelerometer transmits overlarge signals all the time, the system alarms, and the fasteners with corresponding numbers are overhauled manually.
In this embodiment, the magnetorheological elastomeric pad 2 includes: a matrix of elastomeric material and magnetic particles; the magnetorheological elastomer base plate 2 is prepared by adding elastomer materials into the magnetic particles and then performing magnetic field prefabrication trial production. The magnetorheological elastomer backing plate 2 is made of an anisotropic elastomer material by taking rubber or silica gel as a matrix and adding magnetic particles and then performing magnetic field prefabrication and pilot-manufacturing, and can realize real-time adjustment of the material storage modulus and the energy consumption modulus under the action of a magnetic field, so that the rigidity damping characteristic of the fastener backing plate can be adjusted and controlled.
In this embodiment, in order to increase the damping effect of the magnetorheological elastomer pad 2, the upper surface of the magnetorheological elastomer pad 2 is provided with a plurality of upper grooves 19 parallel to the steel rails 22, the lower surface of the magnetorheological elastomer pad 2 is provided with a plurality of lower grooves 20 parallel to the steel rails 22, and the upper grooves 19 and the lower grooves 20 are arranged at intervals;
or, a groove 27 is arranged in the middle of the upper surface of the magnetorheological elastomer base plate, and two sides of the groove 27 are provided with flat plates corresponding to the magnetic poles of the packaging magnetic control element.
In a first way, as shown in fig. 8-9, the upper grooves 19 and the lower grooves 20 are spaced to increase the depth of the grooves and improve the damping effect.
In the second way, as shown in fig. 12-13, the magnetorheological elastomer base plate adopts a single groove structure, for example, a U-shaped magnetic core, and two ends of the magnetorheological elastomer base plate are provided with magnetic poles, and the magnetic poles at the two ends correspond to the flat plate.
In this embodiment, the composite steel shim plate 3 is formed by compounding a steel plate 18 and rubber; the lower layer of the composite steel backing plate 3 is provided with a steel plate 18 which can be matched with the packaging magnetic control element 1 for use and can form a magnetic field loop; the upper layer of the composite steel backing plate 3 is provided with an insulating polymer layer 17. Insulating polymer layer 17 is like insulating rubber layer, and compound steel plate 3 is formed by steel sheet 18 and rubber complex, and the lower floor is steel sheet 18, uses with the cooperation of magnetic control element and can form the magnetic field return circuit, increases magnetic field intensity, avoids the magnetic leakage, and the upper strata is rubber materials, has played the effect of insulating and increase magnetic resistance, and in addition, compound steel plate 3 still can be used to the adjustment of rail height, guarantees the ride comfort of circuit.
In this embodiment, the steel plate 18 has a predetermined ratio of the rail bottom slope on the upper surface thereof. Due to the composite arrangement of the composite steel backing plate 3, the presetting of the rail bottom slope is simpler to realize, for example, the rail bottom slope is preset to be 1: 40.
In this embodiment, in order to further provide a fastener body, the fastener body includes an iron backing plate 8, an anchor bolt 11, and an insulating cushion plate 9 disposed below the iron backing plate 8, and the through hole penetrates through the iron backing plate 8 and the insulating cushion plate 9; two ends of the iron base plate 8 are provided with buckling assemblies for buckling and pressing steel rails 22 on the lower base plate of the rail, and the anchoring bolts 11 penetrate through the iron base plate 8 and the insulating buffer base plate 9 and then are installed in embedded sleeves 14 in sleepers 21. The iron base plate 8 is a main part for bearing the transverse force of the wheel track, through holes are reserved for the packaging magnetic control element 1, the magnetorheological elastomer base plate 2 and the composite steel base plate 3, the through holes are generally square holes, and the iron base plate 8 does not directly bear the vertical force. The insulating buffer base plate 9 is used for relieving the impact action on the sleeper 21 and has an insulating effect. During assembly, a spring washer 12 and a flat cushion block 13 are sequentially sleeved between the anchor bolt 11 and the iron backing plate 8 from top to bottom. The iron shim plate 8 and the insulating buffer shim plate 9 are respectively provided with a first through hole 15 and a second through hole 16.
In this embodiment, in order to further provide a fastening assembly, the fastening assembly comprises an elastic strip 7, a T-shaped bolt 5 and an insulating gauge block 24, the T-shaped bolt 5 is arranged to penetrate through the iron backing plate 8 from bottom to top and locks and fastens the elastic strip 7 on the insulating gauge block 24 through a nut 6, and the insulating gauge block 24 is fastened on a rail shoulder of the steel rail 22. During assembly, the top of the T-shaped bolt 5 is sleeved with the flat washer 10, the elastic strip 7 can be a W-shaped elastic strip 7, and the left and right positions of the steel rail 22 are adjusted through the insulating gauge blocks 24 and the flat washers 10 of different specifications.
In this embodiment, the iron tie plate 8 and the insulating buffer tie plate 9 are protruded outwards to form a protrusion along both ends of the extending direction of the steel rail 22, and the edge of the insulating buffer tie plate 9 is protruded upwards to form a plurality of protruding strips for limiting the displacement of the iron tie plate 8. The arrangement of the convex parts enables the iron base plate 8 and the insulating buffer base plate 9 to have larger space for arranging the through holes, and meanwhile, the positions of two ends for installing the anchor bolts 11 can be reduced, so that the utilization rate of the space can be increased. In addition, the arrangement of the protruding strips can limit the iron base plate 8, and the influence of translation on the whole fastener is avoided.
In this embodiment, a rail-bound heightening pad 4 is provided on the composite steel pad 3. The height adjustment of the steel rail 22 can be realized by filling the height adjustment base plates with different thicknesses between the composite steel base plate 3 and the rail bottom of the steel rail 22.
In the invention, the insulation between the steel rail 22 and the sleeper 21 is realized through the insulating gauge block 24, the composite steel backing plate 3, the insulating buffer backing plate 9 and the embedded sleeve 14.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. An adjustable stiffness railway fastener, comprising: the fastener comprises a fastener body, wherein a through hole is formed in the middle of the fastener body;
a composite steel base plate (3) and a magnetorheological elastomer base plate (2) are sequentially arranged in the through hole from top to bottom, and an encapsulation magnetic control element (1) which is pre-arranged in a sleeper (21) is arranged below the magnetorheological elastomer base plate (2).
2. Adjustable stiffness railway fastener according to claim 1, characterized in that the encapsulated magnetically controlled element (1) is assembled from a magnetic core (25), a magnetically inductive coil (26) and an encapsulating shell (23); wherein the content of the first and second substances,
the magnetic core (25) is of a U-shaped structure with an upward opening, and the magnetic induction coil is wound on the magnetic core (25) and enables the magnetic core (25) to form magnetic poles on the upper surfaces of two ends of the magnetic core;
the packaging shell (23) is used for packaging the magnetic core (25) and the magnetic induction coil (26) and enabling two ends of the magnetic core (25) to be exposed out of the upper surface of the packaging shell (23).
3. Adjustable stiffness railway fastener according to claim 1, characterized in that the magnetorheological elastomer pad (2) comprises: a matrix of elastomeric material and magnetic particles;
the magnetorheological elastomer base plate (2) is prepared by adding elastomer materials into the magnetic particles and then performing magnetic field prefabrication trial production.
4. The railway fastener with adjustable rigidity and damping as claimed in claim 1, wherein the upper surface of the magnetorheological elastomer pad (2) is provided with a plurality of upper grooves (19) parallel to the steel rail (22), the lower surface of the magnetorheological elastomer pad (2) is provided with a plurality of lower grooves (20) parallel to the steel rail (22), and the upper grooves (19) and the lower grooves (20) are arranged at intervals;
or a groove (27) is formed in the middle of the upper surface of the magnetorheological elastomer base plate, and flat plates corresponding to the magnetic poles of the packaging magnetic control element (1) are arranged on two sides of the groove (27).
5. The adjustable stiffness damping railway fastener according to claim 1, wherein the composite steel backing plate (3) is formed by compounding a steel plate (18) and rubber;
the lower layer of the composite steel base plate (3) is provided with a steel plate (18) which can be matched with the packaging magnetic control element (1) for use and can form a magnetic field loop;
the upper layer of the composite steel backing plate (3) is provided with an insulating polymer layer (17).
6. Adjustable stiffness damping railway fastener according to claim 5, wherein the steel plate (18) is formed with a set proportion of rail foot slope presets on its upper surface.
7. The railway fastener with adjustable rigidity and damping as claimed in claim 1, wherein the fastener body comprises an iron tie plate (8), an anchor bolt (11) and an insulating buffer tie plate (9) arranged below the iron tie plate (8), and the through hole penetrates through the iron tie plate (8) and the insulating buffer tie plate (9);
the two ends of the iron base plate (8) are provided with buckling assemblies used for buckling a steel rail (22) on the lower base plate of the rail, and the anchoring bolts (11) penetrate through the iron base plate (8) and the insulating buffer base plate (9) and then are installed in embedded sleeves (14) in the sleepers (21).
8. The adjustable rigidity damping railway fastener according to claim 6, wherein the fastening assembly comprises an elastic strip (7), a T-shaped bolt (5) and an insulating track gauge block (24), the T-shaped bolt (5) penetrates through the iron base plate (8) from bottom to top and locks and fastens the elastic strip (7) on the insulating track gauge block (24) through a nut (6), and the insulating track gauge block (24) is fastened on a rail shoulder of a steel rail (22).
9. The railway fastener with adjustable rigidity and damping as claimed in claim 7, wherein the iron tie plate (8) and the insulating buffer tie plate (9) are protruded outwards to form a convex part at both ends in the extending direction of the steel rail (22), and the edge of the insulating buffer tie plate (9) is protruded upwards to form a plurality of protruding strips for limiting the displacement of the iron tie plate (8).
10. Railway fastener with adjustable stiffness and damping according to claim 1, characterized in that the composite steel tie plate (3) is provided with an under-rail height-adjusting tie plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111622478.4A CN114318964A (en) | 2021-12-28 | 2021-12-28 | Rigidity damping adjustable railway fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111622478.4A CN114318964A (en) | 2021-12-28 | 2021-12-28 | Rigidity damping adjustable railway fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114318964A true CN114318964A (en) | 2022-04-12 |
Family
ID=81014724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111622478.4A Pending CN114318964A (en) | 2021-12-28 | 2021-12-28 | Rigidity damping adjustable railway fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114318964A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115787369A (en) * | 2023-02-09 | 2023-03-14 | 西南交通大学 | Dry friction energy-consumption type vibration-damping noise-reducing fastener and use method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110041294A1 (en) * | 2009-08-24 | 2011-02-24 | Evan Ehring | Releasable magnetic fastening system |
| CN104088203A (en) * | 2014-04-01 | 2014-10-08 | 重庆邮电大学 | Human-simulating control method and device for orbital magnetorheological vibration isolation system under moving load |
| CN105650178A (en) * | 2016-03-10 | 2016-06-08 | 重庆邮电大学 | Self-cooling magneto-sensitive elastomer support |
| CN110761138A (en) * | 2019-12-02 | 2020-02-07 | 沈阳众磊道桥有限公司 | Vehicle magnetic hybrid assembly type pavement structure suitable for heavy-load traffic and construction method |
| KR20200085598A (en) * | 2019-01-07 | 2020-07-15 | 한국철도기술연구원 | Variable stiffness apparatus for using megneto-rheological elastomer |
| CN212955980U (en) * | 2020-06-30 | 2021-04-13 | 北京铁科首钢轨道技术股份有限公司 | Novel fastener |
| CN113089388A (en) * | 2021-04-15 | 2021-07-09 | 周鑫 | Track fastening structure for subway vibration reduction |
-
2021
- 2021-12-28 CN CN202111622478.4A patent/CN114318964A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110041294A1 (en) * | 2009-08-24 | 2011-02-24 | Evan Ehring | Releasable magnetic fastening system |
| CN104088203A (en) * | 2014-04-01 | 2014-10-08 | 重庆邮电大学 | Human-simulating control method and device for orbital magnetorheological vibration isolation system under moving load |
| CN105650178A (en) * | 2016-03-10 | 2016-06-08 | 重庆邮电大学 | Self-cooling magneto-sensitive elastomer support |
| KR20200085598A (en) * | 2019-01-07 | 2020-07-15 | 한국철도기술연구원 | Variable stiffness apparatus for using megneto-rheological elastomer |
| CN110761138A (en) * | 2019-12-02 | 2020-02-07 | 沈阳众磊道桥有限公司 | Vehicle magnetic hybrid assembly type pavement structure suitable for heavy-load traffic and construction method |
| CN212955980U (en) * | 2020-06-30 | 2021-04-13 | 北京铁科首钢轨道技术股份有限公司 | Novel fastener |
| CN113089388A (en) * | 2021-04-15 | 2021-07-09 | 周鑫 | Track fastening structure for subway vibration reduction |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115787369A (en) * | 2023-02-09 | 2023-03-14 | 西南交通大学 | Dry friction energy-consumption type vibration-damping noise-reducing fastener and use method thereof |
| CN115787369B (en) * | 2023-02-09 | 2023-04-11 | 西南交通大学 | Dry friction energy-consumption type vibration-damping noise-reducing fastener and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4775103A (en) | Elastically mounted rails for vehicle tracks | |
| CN114318964A (en) | Rigidity damping adjustable railway fastener | |
| CN102535262A (en) | Elastic vibration-reduction ballast bed system | |
| WO2016094965A1 (en) | Rail support system, components and method for control of noise and vibration from ballastless monorail or super narrow gauge railway track systems | |
| CN106930160A (en) | A kind of steel rail vibration reduction fastener for railcar phase library interior lines | |
| US6027034A (en) | Superstructure construction | |
| CN214613342U (en) | Vibration damping fastener with double transverse limiting and low vertical rigidity | |
| CN113089388A (en) | Track fastening structure for subway vibration reduction | |
| CN105256671A (en) | Compression type damping fastener | |
| CN105862522B (en) | Urban track traffic vibration damping switch structure | |
| CN112593466A (en) | Vibration reduction fastener with double transverse limiting and low vertical rigidity | |
| WO1998041690A1 (en) | Rail pads | |
| CN201620317U (en) | Rubber damping fastener under high-speed railway special line tracks for passenger traffic | |
| CN206887636U (en) | A kind of steel rail vibration reduction fastener for railcar phase library interior lines | |
| CN210561483U (en) | Track fastener matched with concrete sleeper with shoulder | |
| CN111535081A (en) | Ballastless turnout fastener system | |
| CN207143617U (en) | Fastener for rail transit with antidumping insulating pad | |
| KR100408823B1 (en) | Dustproof Device for Rail | |
| CN210946311U (en) | Track system comprising damping ballast bed, common ballast bed and fastener rigidity transition structure | |
| KR20020033337A (en) | Non sleeper track apparatus of railroad | |
| CN113005826B (en) | Design method of full-frequency vibration reduction track structure | |
| CN205874858U (en) | There is pillow not have not modern tram fastener of split of shelves shoulder elasticity | |
| CN210420731U (en) | Modern tram fastener system | |
| CN203360950U (en) | Floating vibration isolation structure of track system | |
| CN110258200A (en) | Rail system containing vibration-damping ballast and common railway roadbed and fastener stiffness transition structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |