CN114164717A - Disk spring vibration damping fastener for rail transit steel rail - Google Patents
Disk spring vibration damping fastener for rail transit steel rail Download PDFInfo
- Publication number
- CN114164717A CN114164717A CN202111541163.7A CN202111541163A CN114164717A CN 114164717 A CN114164717 A CN 114164717A CN 202111541163 A CN202111541163 A CN 202111541163A CN 114164717 A CN114164717 A CN 114164717A
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- CN
- China
- Prior art keywords
- rail
- upper top
- top plate
- plate
- disc spring
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- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/02—Fastening rails, tie-plates, or chairs directly on sleepers or foundations; Means therefor
- E01B9/28—Fastening on wooden or concrete sleepers or on masonry with clamp members
- E01B9/30—Fastening on wooden or concrete sleepers or on masonry with clamp members by resilient steel clips
- E01B9/303—Fastening on wooden or concrete sleepers or on masonry with clamp members by resilient steel clips the clip being a shaped bar
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
- E01B19/003—Means for reducing the development or propagation of noise
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/02—Fastening rails, tie-plates, or chairs directly on sleepers or foundations; Means therefor
- E01B9/32—Fastening on steel sleepers with clamp members
- E01B9/34—Fastening on steel sleepers with clamp members by resilient steel clips
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
- E01B9/685—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by their shape
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2201/00—Fastening or restraining methods
- E01B2201/08—Fastening or restraining methods by plastic or elastic deformation of fastener
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2205/00—Electrical insulation of railway track parts
Abstract
The invention discloses a disk spring vibration damping fastener for rail transit steel rails, which comprises: the device comprises a lower bottom plate, a disc spring group, an upper top plate, an insulation limiting block and a track gauge adjusting block, wherein the lower bottom plate comprises side plates with holes which are formed at two ends and protrude upwards; the upper top plate is arranged above the lower bottom plate, the upper surfaces of two ends of the upper top plate are provided with centrosymmetric convex blocks, the insulating limit block and the gauge adjusting block are arranged between the convex blocks of the upper top plate and the perforated side plate of the lower bottom plate, and the bulge on the insulating limit block penetrates through the through hole in the gauge adjusting block and is inserted into the hole of the perforated side plate, so that the transverse and longitudinal movement of the upper top plate relative to the lower bottom plate is limited; the belleville spring group sets up between lower plate and last roof to be formed with a plurality of spacing bosss on the lower surface of last roof, each belleville spring card of belleville spring group is on the spacing boss that corresponds for set up on last roof rail between two lugs provides elastic support, reduces the vibration from this.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a disk spring vibration-damping fastener for rail transit steel rails.
Background
With the rapid development of urban rail transit and the attention of the majority of citizens on the influence of vibration noise, the problem of environmental pollution caused by vibration noise and the like caused by wheel-rail vibration becomes a problem which cannot be ignored in rail transit construction. The damping fastener is installed on the rail, and is an effective solution, and the damping fastener has the advantages of low construction cost, convenience in construction, convenience in maintenance and replacement and the like.
Existing track damping fasteners can be broadly divided into: 1. the shear type vibration damping fastener is represented by a 'Kelong egg', and is characterized in that elasticity is obtained by utilizing the shear deformation of a vulcanized rubber ring between a top plate (a rail bearing plate) and a base, and a better vibration damping effect can be obtained due to lower shear rigidity of rubber. 2. Compression-type vibration damping fasteners, represented by Lode (LORD) fasteners, are characterized by the use of elastic materials to bond the top plate (rail bearing plate) to the bottom plate (for the attachment of the foundation) which, in the original design, are both flat and later, because their transverse stiffness is significantly less than the vertical stiffness, which is not conducive to maintaining the gauge, and mating the top and bottom plates in a wave-like fashion to increase the transverse stiffness. 3. The fastener for supporting the rail web, the pioneer fastener, is represented by the pioneer fastener (VENGARD) developed by panderland company, and uses an elastic block to suspend the rail from the rail web and the rail jaw, the elastic block is fixed in a cast iron side plate, and the train load is transmitted to the sleeper through the side plate.
However, the above prior art fasteners still have stress concentration phenomenon, and the stability of the fasteners is easy to decrease, aging is easy, the structure is complex, and so on, so it is necessary to develop new technology and equipment to solve at least some technical problems in the prior art.
Disclosure of Invention
Therefore, the embodiment of the invention provides a novel disc spring vibration reduction fastener for rail transit steel rails, which can greatly reduce the influence of rail vibration on the external environment and the life of residents; adopt the belleville spring damping structure of metal, vertical occupation space is littleer, has avoided the ageing problem of material of traditional rubber, polyurethane material damping fastener simultaneously, can be used to newly-built urban rail line in the district that has the damping demand, or the vibration in the current urban rail line vibration influence great district section carries out the damping transformation that the fastener was changed.
According to an aspect of the invention, there is provided a belleville spring shock absorbing clip for a rail of rail transit comprising:
a lower bottom plate (8), a disc spring group (10), an upper top plate (11), an insulation limiting block (12) and a track gauge adjusting block (13),
wherein, the lower bottom plate (8) comprises side plates (8-1) with holes which are formed at two ends and protrude upwards; the two side plates (8-1) with holes are centrosymmetric;
the upper top plate (11) is arranged on the lower bottom plate (8), the upper surfaces of two ends of the upper top plate are provided with centrally symmetrical convex blocks, the insulation limiting block (12) and the track gauge adjusting block (13) are arranged between the convex blocks of the upper top plate (11) and the perforated side plate (8-1) of the lower bottom plate (8), and the bulge (12-1) on the insulation limiting block (12) penetrates through the through hole (13-1) in the track gauge adjusting block (13) and is inserted into the hole of the perforated side plate (8-1), so that the transverse and longitudinal movement of the upper top plate (11) relative to the lower bottom plate (8) is limited;
the disc spring group (10) is arranged between the lower bottom plate (8) and the upper top plate (11), a plurality of limiting bosses (11-1) are formed on the lower surface of the upper top plate, and each disc spring (10-1) of the disc spring group (10) is clamped on the corresponding limiting boss (11-1) and used for providing elastic support for the steel rail (1) arranged between the two bosses on the upper top plate (11), so that vibration is reduced.
According to an embodiment of the present invention, the projection of the upper top plate (11) includes a first projection (11-2) for fixing the elastic crimping member (3).
According to the embodiment of the invention, the disc spring damping fastener for the rail (1) of the rail transit further comprises an insulating gauge block (2) and an elastic buckling part (3), wherein the elastic buckling part (3) is fixed on the first bump (11-2) and presses the rail (1) through the insulating gauge block (2).
According to the embodiment of the invention, the disc spring vibration-damping fastener for the rail (1) of the rail transit further comprises an under-rail insulating pad (14) which is arranged between the lower surface of the rail bottom of the rail (1) and the upper surface of the upper top plate (11).
According to an embodiment of the present invention, the projection of the upper top plate (11) further includes a second projection (11-3) formed with a screw hole.
According to the embodiment of the invention, the disk spring vibration-damping fastener for the rail (1) for the rail transit further comprises a pre-tightening device, a screw hole corresponding to the screw hole in the second bump (11-3) is formed in the lower base plate (8), the pre-tightening device is inserted into the screw hole, and the pre-tightening force between the lower base plate (8) and the upper top plate (11) can be adjusted through the pre-tightening device.
According to the embodiment of the invention, the disc spring vibration damping fastener for the rail (1) for the rail transit further comprises an insulation heightening base plate (9) arranged below the lower base plate (8), and screw holes corresponding to the screw holes in the second convex blocks (11-3) are formed in the insulation heightening base plate (9).
According to the embodiment of the invention, the pre-tightening device comprises a fastening bolt (4), a bolt pre-tightening disc spring (5), a bolt gasket (6) and an insulating bolt sleeve (7).
Drawings
FIG. 1 is a perspective view of a belleville spring shock absorbing clip for a rail of track traffic in accordance with an embodiment of the present invention;
FIG. 2 is a schematic top view of a belleville spring shock absorbing clamp for a rail of track traffic in accordance with an embodiment of the present invention;
FIG. 3 is an exploded view of a belleville spring shock absorbing clip for a rail of track traffic in accordance with an embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of the components of a belleville spring shock absorbing clip for a rail of a rail track in accordance with an embodiment of the present invention;
FIG. 5 is a schematic diagram of a disc spring pack of a disc spring shock absorbing clip for a rail of track traffic according to an embodiment of the present invention; and
fig. 6 is a schematic view of the combination of the disc spring and the upper top plate of the disc spring shock-absorbing fastener for the rail transit according to the embodiment of the present invention.
Detailed Description
The invention will be better understood from the following examples and the accompanying drawings. However, those skilled in the art will readily appreciate that the description of the embodiments is only for the purpose of illustration and should not be taken as a limitation of the invention.
FIG. 1 is a perspective view of a belleville spring shock absorbing clip for a rail of track traffic in accordance with an embodiment of the present invention; FIG. 2 is a schematic top view of a belleville spring shock absorbing clamp for a rail of track traffic in accordance with an embodiment of the present invention; FIG. 3 is an exploded view of a belleville spring shock absorbing clip for a rail of track traffic in accordance with an embodiment of the present invention; referring to fig. 1 to 3, a disc spring damper clip for a rail 1 for rail transit according to an embodiment may include: the device comprises an insulating gauge block 2, an elastic buckling piece 3, a fastening bolt 4, a bolt pre-tightening disc spring 5, a bolt gasket 6, an insulating bolt sleeve 7, a lower bottom plate 8, an insulating heightening base plate 9, a disc spring group 10, an upper top plate 11, an insulating limiting block 12, a gauge adjusting block 13 and a rail lower insulating base plate 14.
Referring to fig. 1, 3 and 4, an insulating height-adjusting pad 9 is located at the lowest part of the assembly, and is disposed below the lower base plate 8, wherein two screw holes are formed, which may be made of rubber material, and has the functions of adjusting the height of the fastener and insulating. Meanwhile, the insulation heightening base plate is softer than the lower bottom plate 8, so that the sleeper or the track bed can be protected from being damaged by the load of the fastener.
The lower base plate 8 mainly provides longitudinal and transverse limiting support for the fastener and provides deformation space for the disc spring group 10. That is, disc spring packs 10 are disposed between the lower base plate 8 and the upper top plate 11, and the contact surface of the lower base plate and the disc spring packs 10 may be treated with a wear-resistant coating, such as a zinc coating, applied to the metal lower base plate. More specifically, the lower plate 8 includes perforated side plates 8-1 formed at both ends to protrude upward; as shown in the figure, two perforated side plates 8-1 are formed on diagonally opposite sides of the lower base plate, respectively, in central symmetry. The upwardly projecting apertured side panel 8-1 provides a stop for the upper top panel 11. In addition, two screw holes are formed in the lower bottom plate 8, correspond to the insulating heightening base plate 9 and can be used for being connected with the upper top plate.
The upper top plate 11 is disposed above the lower bottom plate 8, and a protrusion having central symmetry is formed on the upper surface of both ends of the upper top plate. As shown, the protrusions include a first protrusion 11-2 for fixing the elastic crimp 3 and a second protrusion 11-3 formed with a screw hole. The first protrusion 11-2 includes a fixing hole for fixing one end of the fixed elastic pressing member 3 and a supporting portion for supporting the fixed elastic pressing member 3. Screw holes corresponding to the screw holes in the lower bottom plate 8 are formed in the second protrusions 11-3 and can be used for a pre-tightening device to adjust the pre-tightening force between the lower bottom plate 8 and the upper top plate 11.
As shown in FIGS. 1 and 4, an insulation stopper 12 and a gauge adjustment block 13 are provided between the first and second protrusions of the upper top plate 11 and the perforated side plate 8-1 of the lower bottom plate 8, a protrusion 12-1 of the insulation stopper 12 is inserted into a hole of the perforated side plate 8-1 through a through hole 13-1 in the gauge adjustment block 13, one side surface of the insulation stopper 12 abuts against the first protrusion, one side surface of the gauge adjustment block 13 abuts against the perforated side plate 8-1, and one end surfaces of the insulation stopper 12 and the gauge adjustment block 13 abut against the second protrusion, so that the upper top plate 11 is restricted from moving laterally and longitudinally with respect to the lower bottom plate 8.
As shown in fig. 1-3, the pretensioning means may comprise a fastening bolt (4), a bolt pretensioning disc spring (5), a bolt washer (6) and an insulating bolt sleeve (7). The fastening bolt 4 can be directly connected with a bolt sleeve pre-embedded in a sleeper or a track bed so as to play a role in fixing the whole fastener. The fastening bolt 4 is installed with a certain torque load, and can generate pre-tightening acting force on the bolt pre-tightening disc spring 5 during installation, and the acting force is transmitted to the upper top plate 11 through the bolt gasket 6 and the insulating bolt sleeve 7.
FIG. 5 is a schematic diagram of a disc spring pack of a disc spring shock absorbing clip for a rail of track traffic according to an embodiment of the present invention; fig. 6 is a schematic view of the combination of the disc spring and the upper top plate of the disc spring shock-absorbing fastener for the rail transit according to the embodiment of the present invention. Referring to the drawings, a disc spring group 10 is provided between a lower floor plate 8 and an upper ceiling plate 11, and is constituted by a plurality of disc springs 10-1. A plurality of limiting bosses 11-1 are formed on the lower surface of the upper top plate 11, and each disc spring 10-1 of the disc spring group 10 is clamped on the corresponding limiting boss 11-1, thereby fixing the position.
The disk spring 10-1 is a spring which is conical in the axial direction and bears load, has high rigidity and strong buffering and vibration absorbing capacity, can bear large load with small deformation, and is suitable for occasions with small requirements on axial space. The stiffness as well as the damping characteristics can also be adjusted over a wide range by changing the dimensions or connecting the same disc springs in series or in parallel, or by adjusting the material properties, for example by using different alloy materials.
The upper top plate 11 is simultaneously subjected to the pretightening force of the bolt pretightening disc spring 5 and the elastic supporting force of the disc spring group 10 and is connected with the steel rail 1 through the elastic buckling and pressing piece 3, so that the vibration energy of the train is transmitted to the outside after being attenuated by the upper disc spring and the lower disc spring along with the vibration of the steel rail when the train passes through the train, and the influence of the train vibration on the environment can be greatly reduced.
The contact surface of the upper top plate 11 and the steel rail 1 can be inclined at a certain gradient according to the requirements of a track so as to improve the stress state, and simultaneously, the upper top plate 11 and the steel rail 1 vibrate together during vibration, so that the vibration damping effect can be enhanced by increasing the height of the upper top plate 11 and enabling the upper top plate to have larger vibration participating mass. In addition, a rail lower insulating pad 14 may be provided between the upper top plate 11 and the steel rail 1 to perform load bearing connection. The lower insulating pad 14 is typically made of a rubber material and functions to isolate the rail current and support the underside of the rail.
As shown in fig. 1-2, the resilient hold-down 3 is fixed to the first projection 11-2 and presses the rail 1 via the insulating gage block 2. The elastic crimping part 3 is generally made of spring steel and has a bending design, one end of the elastic crimping part is fixed in a fixing hole of the first bump 11-2, the middle section of the elastic crimping part is supported on a supporting part of the first bump 11-2, and the other end of the elastic crimping part abuts against the insulating track gauge block 2. Can be deformed during installation so as to generate buckling pressure on the insulating gauge block 2 to keep the steel rail 1 stable. The contact position with the insulating gauge block 2 is preferably flat design to increase the contact area and improve the contact state.
The insulating track gauge block 2 is generally made of a high polymer material with certain strength, plays a role in isolating the current of the steel rail and adjusting the track gauge, and one side of the insulating track gauge block is convexly clamped at the upper top plate 11, so that the insulating track gauge block cannot generate displacement when the elastic buckling and pressing piece 3 is installed.
Compared with the prior art, the fastener of the invention can achieve excellent technical effects, such as:
1. adopt dish spring structure damping in the damping fastener, damping performance can change through quantity and the arranging and the material of adjusting the dish spring.
2. The structural design height can be reduced.
3. The damping fastener structure is not easy to age, and the damping performance of the fastener can be kept for a long time.
4. The determination of insufficient transverse rigidity in the common vibration-damping fastener can be greatly improved by the longitudinal and transverse limiting mechanisms.
The specific embodiments are given above, but the present invention is not limited to the above-described embodiments. The basic idea of the present invention lies in the above basic scheme, and it is obvious to those skilled in the art that no creative effort is needed to design various modified models, formulas and parameters according to the teaching of the present invention. Variations, modifications, substitutions and alterations may be made to the embodiments without departing from the principles and spirit of the invention, and still fall within the scope of the invention.
Claims (8)
1. The utility model provides a track traffic rail (1) is with belleville spring damping fastener which characterized in that includes: a lower bottom plate (8), a disc spring group (10), an upper top plate (11), an insulation limiting block (12) and a track gauge adjusting block (13),
wherein, the lower bottom plate (8) comprises side plates (8-1) with holes which are formed at two ends and protrude upwards; the two side plates (8-1) with holes are centrosymmetric;
the upper top plate (11) is arranged on the lower bottom plate (8), the upper surfaces of two ends of the upper top plate are provided with centrally symmetrical convex blocks, the insulation limiting block (12) and the track gauge adjusting block (13) are arranged between the convex blocks of the upper top plate (11) and the perforated side plate (8-1) of the lower bottom plate (8), and the bulge (12-1) on the insulation limiting block (12) penetrates through the through hole (13-1) in the track gauge adjusting block (13) and is inserted into the hole of the perforated side plate (8-1), so that the transverse and longitudinal movement of the upper top plate (11) relative to the lower bottom plate (8) is limited;
the disc spring group (10) is arranged between the lower bottom plate (8) and the upper top plate (11), a plurality of limiting bosses (11-1) are formed on the lower surface of the upper top plate, and each disc spring (10-1) of the disc spring group (10) is clamped on the corresponding limiting boss (11-1) and used for providing elastic support for the steel rail (1) arranged between the two bosses on the upper top plate (11), so that vibration is reduced.
2. Disc spring shock absorbing clip for rail (1) of rail transit according to claim 1, characterized in that the projection of the upper top plate (11) comprises a first projection (11-2) for fixing the resilient snap element (3).
3. The disk spring shock absorber fastening for rail (1) of rail transit according to claim 1, further comprising an insulating gauge block (2) and an elastic holding-down member (3), wherein the elastic holding-down member (3) is fixed to the first projection (11-2) and presses the rail (1) through the insulating gauge block (2).
4. The belleville spring shock absorbing clamp for a rail (1) for rail transit according to claim 1, further comprising an under-rail insulating pad (14) disposed between the lower surface of the rail base of the rail (1) and the upper surface of the upper top plate (11).
5. Disc spring shock absorbing clip for a rail (1) for track traffic according to claim 2, characterized in that the projection of the upper head plate (11) further comprises a second projection (11-3) formed with a threaded hole.
6. The disk spring shock-absorbing fastener for rail (1) of rail transit as claimed in claim 5, further comprising a pre-tightening device, wherein a screw hole corresponding to the screw hole of the second protrusion (11-3) is formed in the lower base plate (8), and the pre-tightening device is inserted into the screw hole, and the pre-tightening force between the lower base plate (8) and the upper top plate (11) can be adjusted by the pre-tightening device.
7. The disk spring shock-absorbing fastener for rail (1) of railway traffic as claimed in claim 6, further comprising an insulating heightening pad (9) disposed under the lower base plate (8), wherein the insulating heightening pad (9) has screw holes formed therein corresponding to the screw holes in the second projections (11-3).
8. Disc spring shock absorbing clip for rail (1) of rail transit according to claim 6 characterized in that the pretensioning means comprises a fastening bolt (4), a bolt pretensioning disc spring (5), a bolt washer (6) and an insulating bolt sleeve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111541163.7A CN114164717A (en) | 2021-12-16 | 2021-12-16 | Disk spring vibration damping fastener for rail transit steel rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111541163.7A CN114164717A (en) | 2021-12-16 | 2021-12-16 | Disk spring vibration damping fastener for rail transit steel rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114164717A true CN114164717A (en) | 2022-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111541163.7A Pending CN114164717A (en) | 2021-12-16 | 2021-12-16 | Disk spring vibration damping fastener for rail transit steel rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114164717A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0460778A1 (en) * | 1990-05-07 | 1991-12-11 | Preussag Stahl Aktiengesellschaft | Attachment for a railway rail base plate and method for obtaining a switch and a steel Y shaped sleeper |
| JPH10311369A (en) * | 1997-05-13 | 1998-11-24 | Ohbayashi Corp | Base isolation device |
| CN103088723A (en) * | 2011-10-29 | 2013-05-08 | 青岛科而泰环境控制技术有限公司 | Elastic rail fixing device |
| CN103938504A (en) * | 2014-05-14 | 2014-07-23 | 张志新 | Casting-free plastic-free large-adjustment-amount high-elasticity anti-theft rail fastener |
| CN105133442A (en) * | 2015-08-19 | 2015-12-09 | 钱惠炳 | Railway track and laying method thereof |
| CN107090749A (en) * | 2017-04-20 | 2017-08-25 | 太仓中博铁路紧固件有限公司 | Lock-up type damping steel rail fastener |
| CN107747255A (en) * | 2017-11-08 | 2018-03-02 | 西安卓控环保科技有限公司 | The steel rail vibration reduction fastener that a kind of lateral stiffness and vertical rigidity are separately controlled |
| CN208668173U (en) * | 2017-12-19 | 2019-03-29 | 瑞尔华（上海）交通科技有限公司 | A kind of double-layer vibration damping fastener |
| CN112575628A (en) * | 2020-12-16 | 2021-03-30 | 上海工程技术大学 | Vibration reduction fastener system with low vertical rigidity and capable of resisting transverse torsion of steel rail |
| CN112593466A (en) * | 2020-12-16 | 2021-04-02 | 上海工程技术大学 | Vibration reduction fastener with double transverse limiting and low vertical rigidity |
| CN214529977U (en) * | 2021-01-25 | 2021-10-29 | 中铁第四勘察设计院集团有限公司 | Vibration-damping fastener with shoulder |
-
2021
- 2021-12-16 CN CN202111541163.7A patent/CN114164717A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0460778A1 (en) * | 1990-05-07 | 1991-12-11 | Preussag Stahl Aktiengesellschaft | Attachment for a railway rail base plate and method for obtaining a switch and a steel Y shaped sleeper |
| JPH10311369A (en) * | 1997-05-13 | 1998-11-24 | Ohbayashi Corp | Base isolation device |
| CN103088723A (en) * | 2011-10-29 | 2013-05-08 | 青岛科而泰环境控制技术有限公司 | Elastic rail fixing device |
| CN103938504A (en) * | 2014-05-14 | 2014-07-23 | 张志新 | Casting-free plastic-free large-adjustment-amount high-elasticity anti-theft rail fastener |
| CN105133442A (en) * | 2015-08-19 | 2015-12-09 | 钱惠炳 | Railway track and laying method thereof |
| CN107090749A (en) * | 2017-04-20 | 2017-08-25 | 太仓中博铁路紧固件有限公司 | Lock-up type damping steel rail fastener |
| CN107747255A (en) * | 2017-11-08 | 2018-03-02 | 西安卓控环保科技有限公司 | The steel rail vibration reduction fastener that a kind of lateral stiffness and vertical rigidity are separately controlled |
| CN208668173U (en) * | 2017-12-19 | 2019-03-29 | 瑞尔华（上海）交通科技有限公司 | A kind of double-layer vibration damping fastener |
| CN112575628A (en) * | 2020-12-16 | 2021-03-30 | 上海工程技术大学 | Vibration reduction fastener system with low vertical rigidity and capable of resisting transverse torsion of steel rail |
| CN112593466A (en) * | 2020-12-16 | 2021-04-02 | 上海工程技术大学 | Vibration reduction fastener with double transverse limiting and low vertical rigidity |
| CN214529977U (en) * | 2021-01-25 | 2021-10-29 | 中铁第四勘察设计院集团有限公司 | Vibration-damping fastener with shoulder |
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