CN118048814B - Higher vibration reduction track fastener - Google Patents
Higher vibration reduction track fastener Download PDFInfo
- Publication number
- CN118048814B CN118048814B CN202410452972.8A CN202410452972A CN118048814B CN 118048814 B CN118048814 B CN 118048814B CN 202410452972 A CN202410452972 A CN 202410452972A CN 118048814 B CN118048814 B CN 118048814B
- Authority
- CN
- China
- Prior art keywords
- positioning
- elastic
- base plate
- iron
- sleeve
- 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.)
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Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 88
- 229910052742 iron Inorganic materials 0.000 claims abstract description 44
- 241001669679 Eleotris Species 0.000 claims abstract description 14
- 230000000149 penetrating effect Effects 0.000 claims abstract description 10
- 238000013016 damping Methods 0.000 claims description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 4
- 238000010008 shearing Methods 0.000 abstract description 12
- 230000006835 compression Effects 0.000 abstract description 8
- 238000007906 compression Methods 0.000 abstract description 8
- 238000004873 anchoring Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000013040 rubber vulcanization Methods 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- E01B9/62—Rail fastenings incorporating resilient supports
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Railway Tracks (AREA)
Abstract
The invention discloses a higher vibration reduction track fastener, which comprises a fastener body, wherein an iron base plate is arranged at the bottom of the fastener body; the two ends of the iron base plate are provided with first oblong holes penetrating through the anchor bolts, and adjusting cushion blocks are embedded in the positions, below the iron base plate, of the first oblong holes; an elastic base is embedded below the adjusting cushion block, and a second oblong hole for passing through the anchor bolt is formed in the adjusting cushion block; the elastic base is provided with a third oblong hole for passing through the anchor bolt, and is embedded in a positioning groove arranged on the sleeper. The high-grade vibration reduction track fastener utilizes vertical shearing deformation of the elastic base to provide low rigidity to ensure track elasticity, utilizes transverse compression deformation of the elastic base to provide high rigidity to ensure track stability, and transverse load is borne by the elastic base and the sleeper shoulder, so that the bolt only plays a role in positioning, and the bolt is not subjected to transverse shearing force during normal use.
Description
Technical Field
The invention relates to the technical field of elastic vibration reduction parts for rail transit, in particular to a high-grade vibration reduction rail fastener.
Background
With the vigorous development of rail transit, the problems of environmental vibration and noise caused by the problems are more and more obvious, the research on vibration reduction and noise reduction of the rail transit is more and more important, and the adoption of the vibration reduction fastener is one of effective measures for relieving the environmental vibration and noise.
The track vibration damping fasteners are mainly classified into compression type and shear type according to vibration damping forms. The existing compression type track vibration damping fastener can only achieve a medium vibration damping effect and is not suitable for line sections with high vibration damping and noise reduction requirements. The existing shear type high-grade vibration damping fastener has lower rigidity and better vibration damping and noise reduction effects, but has poorer capability of resisting the transverse deformation of the rail head of the steel rail, so that larger shearing force is generated when the bolt is subjected to the transverse acting force of the steel rail, and the bolt is damaged.
Therefore, providing a high vibration damping rail fastener that provides effective support under high loads while providing a low stiffness, high vibration damping effect is a problem that is currently in need of solution.
Disclosure of Invention
The invention aims to provide a high-grade vibration reduction track fastener, which utilizes vertical shearing deformation of an elastic base to provide low rigidity to ensure track elasticity, utilizes transverse compression deformation of the elastic base to provide high rigidity to ensure stability of the track, and adopts the elastic base and sleeper shoulder to bear transverse load, so that a bolt only plays a positioning role, and the bolt is not subjected to transverse shearing force during normal use.
In order to achieve the above object, the present invention provides a higher vibration reduction rail fastener, which includes a fastener body with an iron pad at the bottom; the two ends of the iron base plate are provided with first oblong holes penetrating through the anchor bolts, and adjusting cushion blocks are embedded in the positions, located in the first oblong holes, of the lower parts of the iron base plate; an elastic base is embedded under the adjusting cushion block, and a second oblong hole for passing through the anchoring bolt is formed in the adjusting cushion block; the elastic base is provided with a third oblong hole for passing through the anchor bolt, and is embedded in a positioning groove arranged on the sleeper; the elastic base comprises a supporting sleeve, a rubber elastic layer and a positioning buffer sleeve from inside to outside in sequence; the bottom of the positioning buffer sleeve is lower than the bottom of the supporting sleeve; the outer side of the supporting sleeve is provided with a first conical surface, and the inner side and the outer side of the positioning buffer sleeve are respectively provided with a second conical surface and a third conical surface; the diameters of the first conical surface, the second conical surface and the third conical surface gradually decrease from top to bottom.
Preferably, the supporting sleeve and the positioning buffer sleeve are integrated through rubber vulcanization.
Preferably, an elastic sleeve is arranged on the anchor bolt at a position above the iron base plate.
Preferably, the elastic sleeve is a tower spring with a narrow upper part and a wide lower part, and the diameter of the lower end of the tower spring is larger than the width of the first oblong hole.
Preferably, the adjusting cushion block is provided with a first positioning convex part coaxial with the second oblong hole; the iron backing plate is provided with a first positioning concave part which is coaxial with the first oblong hole and is matched with the first positioning convex part to be embedded.
Preferably, the elastic base is provided with a second positioning convex part coaxial with the third oblong hole; and a second positioning concave part which is coaxial with the second oblong hole and is matched with the second positioning convex part to be embedded is arranged under the adjusting cushion block.
Preferably, the fastener body comprises an iron pad and a rail pad disposed on the iron pad; third positioning convex parts are arranged on the two sides of the iron base plate, which are positioned on the rail lower base plate, and insulating gauge blocks are arranged between the third positioning convex parts and steel rails borne on the rail lower base plate; a T-shaped bolt penetrating through the third positioning convex part is arranged on the iron base plate in a penetrating manner from bottom to top, and an elastic strip, a flat washer and a nut are sleeved on the T-shaped bolt in sequence; and two ends of the elastic strip are respectively buckled on the third positioning convex part and the insulation track gauge block.
According to the technical scheme, the high-grade vibration reduction track fastener provided by the invention has the advantages that the vertical shearing deformation of the elastic base is utilized to provide low rigidity to ensure the elasticity of the track, the transverse compression deformation of the elastic base is utilized to provide high rigidity to ensure the stability of the track, the transverse load is born by the elastic base and the sleeper shoulder, the bolt only plays a role in positioning, and the bolt is not subjected to transverse shearing force during normal use.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate the invention and together with the description serve to explain, without limitation, the invention. In the drawings:
FIG. 1 is a schematic elevational view of a preferred embodiment of a higher vibration damping rail fastener;
FIG. 2 is a partial schematic structural view of a preferred embodiment of a higher vibration damping rail fastener;
FIG. 3 is a schematic partial cross-sectional view of a preferred embodiment of a higher vibration damping rail fastener;
FIG. 4 is a schematic perspective view of a preferred embodiment of a higher vibration damping rail fastener;
FIG. 5 is a configuration of a first conical surface, a second conical surface, and a third conical surface;
fig. 6 is another configuration of the first, second and third tapered surfaces.
Description of the reference numerals
1-Spring strips; 2-insulating gauge blocks; a 3-T bolt; 4-nuts; 5-plain washers; 6-anchoring bolts; 7-a tower spring; 8-an iron backing plate; 81-limiting holes; 82-a first oblong hole; 9-adjusting a cushion block; 91-first positioning projections; 92-a second oblong hole; 93-a second positioning recess; 10-a rail pad; 11-rail; 12-sleeper; 121-a positioning groove; 13-embedding a sleeve; 14-an elastic base; 141-positioning a buffer sleeve; 1411-a second conical surface; 142-a rubber elastic layer; 143-supporting sleeves; 1431-a second positioning tab; 1432-a first conical surface; 144-grooves; 15-a third positioning protrusion; 16-curved surface; 17-inclined plane.
Detailed Description
The following describes specific embodiments of the present invention in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.
In the present invention, unless otherwise indicated, terms such as "upper, lower, left, right, front, rear, and inner and outer" and the like are used merely to denote the orientation of the term in a conventional use state or are commonly understood by those skilled in the art, and should not be construed as limiting the term.
Referring to the higher vibration-damping rail fastener shown in fig. 1 to 6, the higher vibration-damping rail fastener comprises a fastener body with an iron pad 8 arranged at the bottom; the two ends of the iron base plate 8 are provided with first oblong holes 82 penetrating through the anchor bolts 6, and the lower part of the iron base plate 8 is embedded with an adjusting cushion block 9 at the position of the first oblong holes 82; an elastic base 14 is embedded under the adjusting cushion block 9, and a second oblong hole 92 for passing through the anchoring bolt 6 is arranged on the adjusting cushion block 9; the elastic base 14 is provided with a third oblong hole for passing through the anchoring bolt 6, and the elastic base 14 is embedded in a positioning groove 121 arranged on the sleeper 12; the elastic base 14 comprises a supporting sleeve 143, a rubber elastic layer 142 and a positioning buffer sleeve 141 from inside to outside in sequence; the bottom of the positioning buffer sleeve 141 is lower than the bottom of the supporting sleeve 143; the outer side of the supporting sleeve 143 is provided with a first conical surface 1432, and the inner side and the outer side of the positioning buffer sleeve 141 are respectively provided with a second conical surface 1411 and a third conical surface; the diameters of the first conical surface 1432, the second conical surface 1411 and the third conical surface gradually decrease from top to bottom.
Through implementation of the technical scheme, the high-grade vibration reduction track fastener provides low rigidity by utilizing vertical shearing deformation of the elastic base 14 to ensure track elasticity, provides high rigidity by utilizing transverse compression deformation of the elastic base 14 to ensure track stability, and transverse load is born by the elastic base 14 and the stop shoulders of the sleeper 12, so that the bolts only play a role in positioning, and do not receive transverse shearing force during normal use.
The support sleeve 143 serves as a support for transmitting lateral and longitudinal forces and transmitting the same to the positioning cushion sleeve 141. The positioning cushion 141 is provided to have elasticity capable of overcoming the lateral load brought about by the rail 11.
As shown in fig. 3, a groove 144 is formed at the bottom of the supporting sleeve 143, so that both the transverse force and the longitudinal force applied to the supporting sleeve 143 are transmitted to the second tapered surface 1411 through the first tapered surface 1432, further transmitted to the positioning cushion sleeve 141 and then transmitted to the sleeper 12. When the support sleeve 143 is subjected to a downward force, the resulting slight displacement allows the bottom of the support sleeve 143 to move toward the recess 144, providing a space for movement of the support sleeve 143.
Of course, since the upper end of the positioning cushion 141 is generally required to be disposed to protrude from the sleeper 12, in order to reduce the main point of application of the lateral force as much as possible, the slopes of the first tapered surface 1432, the second tapered surface 1411, and the third tapered surface are disposed to gradually increase from top to bottom. For example: as shown in fig. 5, the first tapered surface 1432, the second tapered surface 1411, and the third tapered surface are provided as curved surfaces 16 whose curvatures gradually increase from top to bottom; or for example, fig. 6, the first conical surface 1432, the second conical surface 1411 and the third conical surface are provided as a plurality of inclined planes 17 with gradually increasing slopes from top to bottom. By such arrangement, the transverse force is transmitted to the lower position in the positioning groove 121 as much as possible, so that the shearing force of the transverse force to the positioning groove 121 is smaller, thereby protecting the sleeper 12 and prolonging the service life of the sleeper 12.
In this embodiment, an elastic sleeve is provided on the anchor bolt 6 at a position above the iron pad 8. Through this elastic external member's setting, during normal equipment, iron backing plate 8 upper portion elastic external member is the compressed state, receives the vertical force when the fastener body is whole, and when the downward deformation takes place, iron backing plate 8 upper portion elastic external member extends and releases elasticity, makes the whole stability of fastener good.
Further, in order to increase the use effect of the elastic sleeve, the overall stability of the fastener is improved, the elastic sleeve is a tower spring 7 with a narrow upper part and a wide lower part, and the diameter of the lower end of the tower spring 7 is larger than the width of the first oblong hole 82. When the assembly is normal, the tower spring 7 is in a compressed state, and when the whole fastener body is subjected to vertical force and is deformed downwards, the tower spring 7 stretches to release elasticity, so that the whole fastener is good in stability.
The first oblong hole 82, the second oblong hole 92 and the third oblong hole in the invention extend along the direction perpendicular to the steel rail 11 and are all used for penetrating through the anchor bolt 6, and by the arrangement, when the iron pad 8 moves transversely, the adjusting pad 9 moves transversely and the upper end of the elastic base 14 moves transversely, the iron pad 8, the adjusting pad 9 and the elastic base 14 do not contact with the anchor bolt 6. Compared with the prior art: the existing fastening anchoring bolt 6 needs to firmly lock the iron base plate 8 and the sleeper 12, and overcomes the transverse load through friction force to enable the anchoring bolt 6 to bear larger shearing force.
In this embodiment, the adjustment pad 9 is provided with a first positioning protrusion 91 coaxial with the second oblong hole 92; a first positioning concave portion which is coaxial with the first oblong hole 82 and is engaged with the first positioning convex portion 91 is provided under the iron pad 8. By the fitting arrangement of the first positioning convex portion 91 and the first positioning concave portion with each other, the lateral force on the iron pallet 8 can be transmitted to the adjustment block 9.
In this embodiment, the elastic base 14 is provided with a second positioning protrusion 1431 coaxial with the third oblong hole; a second positioning concave portion 93 coaxial with the second oblong hole 92 and engaged with the second positioning convex portion 1431 is provided under the adjustment pad 9. By the fitting arrangement of the second positioning convex portion 1431 and the second positioning concave portion 93 with each other, the lateral force on the iron pallet 8 can be transmitted to the elastic base 14 through the adjustment block 9.
In this embodiment, the support sleeve 143 and the positioning cushion sleeve 141 are integrally vulcanized with rubber, and the rubber elastic layer 142 is formed in the middle after the vulcanization.
In the elastic base 14 of the present invention, the vertical load of the wheel rail force is overcome by the shear deformation of the positioning cushion cover 141 of the elastic base 14, and the vertical rigidity can be adjusted by adjusting the thickness and angle of the positioning cushion cover 141.
In this embodiment, in order to further provide a fastener body including an iron shim plate 8 and a rail shim plate 10 provided on the iron shim plate 8; third positioning convex parts 15 are arranged on the two sides of the iron base plate 8, which are positioned on the rail lower base plate 10, and an insulating track gauge block 2 is arranged between the third positioning convex parts 15 and the steel rail 11 borne on the rail lower base plate 10; the T-shaped bolt 3 penetrating through the third positioning convex part 15 is arranged on the iron base plate 8 from bottom to top, and the T-shaped bolt 3 is sequentially sleeved with a spring strip 1, a flat washer 5 and a nut 4; both ends of the spring strip 1 are respectively buckled on the third positioning convex part 15 and the insulation track gauge block 2. The iron backing plate 8 is provided with a limiting hole 81 for limiting the cap end of the T-shaped bolt 3, and the bottom of the positioning groove 121 is provided with an embedded sleeve 13 matched with the anchor bolt 6.
The transverse load generated by the wheel track force is transmitted to the concrete shoulder through the insulating track gauge block 2, the iron base plate 8, the adjusting cushion block 9 and the elastic base 14, the transverse compression deformation of the positioning buffer sleeve 141 part in the elastic base 14 plays a role in buffering, the vertical shearing deformation of the elastic base 14 is utilized to provide low rigidity to ensure the track elasticity, and the transverse compression deformation of the elastic base 14 is utilized to provide high rigidity to ensure the stability of the track. Compared with the prior higher vibration damping fastener, the structure is simple, the installation is convenient, and the adjustment amount is large.
In the invention:
Spring strip 1: providing buckling pressure of the steel rail 11; insulation gauge block 2: providing a small range of gage adjustment capability; rail pad 10: the elasticity of the rail 11 is not provided, and the height adjustment capability of the rail 11 in a small range is provided; elastic base 14: providing a fastener system that is elastically deformable vertically and laterally; adjusting cushion block 9: providing a wide range of gauges and the height adjustment capability of the steel rail 11; the tower spring 7: providing fastener system stability; t-bolts, nuts, plain washers: fixing the spring strip 1 on an iron base plate 8; anchor bolt 6, pre-buried sleeve 13: securing the fastener system to the tie 12 or track slab; iron pad 8: providing the ability to carry the rail 11 while evenly transmitting and distributing the force to the two resilient bases 14.
And (3) installation description:
1. Removing mud; 2. the elastic base 14 is arranged on the sleeper 12 or the track plate, the periphery of the elastic base 14 is of a long round design, and the upper part of the elastic base is provided with a second positioning convex part 1431 for limiting the direction of the adjusting cushion block 9; 3. the adjusting cushion block 9 is arranged according to the correct direction; 4. the first positioning concave parts on two sides of the iron cushion plate 8 are placed in the first positioning convex parts 91 of the adjusting cushion block; 5. the anchoring bolt 6 passes through the tower spring 7, the iron base plate 8, the adjusting cushion block 9 and the elastic base 14 and then is fastened on the embedded sleeve 13; 6. paving steel rails; 7. the T-shaped bolt 3, the spring strip 1, the flat washer 5 and the nut 4 are placed, and the spring strip 1 is installed in place through the locking nut 4.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but 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 scope of the technical concept of the present invention, and all the simple modifications belong to the protection scope of the present invention.
In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.
Moreover, any combination of the various embodiments of the invention can be made without departing from the spirit of the invention, which should also be considered as disclosed herein.
Claims (5)
1. The higher vibration reduction track fastener is characterized by comprising a fastener body with an iron base plate (8) arranged at the bottom;
First oblong holes (82) penetrating through the anchor bolts (6) are formed in the two ends of the iron base plate (8), and adjusting cushion blocks (9) are embedded in the positions, located below the first oblong holes (82), of the iron base plate (8);
An elastic base (14) is embedded under the adjusting cushion block (9), and a second oblong hole (92) for passing through the anchor bolt (6) is formed in the adjusting cushion block (9);
The elastic base (14) is provided with a third oblong hole for passing through the anchor bolt (6), and the elastic base (14) is embedded in a positioning groove (121) arranged on the sleeper (12);
The elastic base (14) sequentially comprises a supporting sleeve (143), a rubber elastic layer (142) and a positioning buffer sleeve (141) from inside to outside;
The bottom of the positioning buffer sleeve (141) is lower than the bottom of the supporting sleeve (143);
the outer side of the supporting sleeve (143) is provided with a first conical surface (1432), and the inner side and the outer side of the positioning buffer sleeve (141) are respectively provided with a second conical surface (1411) and a third conical surface;
The diameters of the first conical surface (1432), the second conical surface (1411) and the third conical surface gradually decrease from top to bottom;
A first positioning convex part (91) which is coaxial with the second oblong hole (92) is arranged on the adjusting cushion block (9);
a first positioning concave part which is coaxial with the first oblong hole (82) and is matched with the first positioning convex part (91) to be embedded is arranged under the iron base plate (8);
A second positioning convex part (1431) which is coaxial with the third oblong hole is arranged on the elastic base (14);
A second positioning concave part (93) which is coaxial with the second oblong hole (92) and is matched with the second positioning convex part (1431) to be embedded is arranged under the adjusting cushion block (9).
2. The higher vibration damping rail fastener according to claim 1, characterized in that the supporting sleeve (143) and the positioning cushion sleeve (141) are integrally vulcanized by rubber.
3. Higher vibration-damping rail fastener according to claim 1, characterized in that an elastic sleeve is provided on the anchor bolt (6) above the iron pad (8).
4. A higher vibration-damping rail fastener according to claim 3, characterized in that the elastic sleeve is a tower spring (7) with a narrow upper part and a wide lower part, and the diameter of the lower end of the tower spring (7) is larger than the width of the first oblong hole (82).
5. Higher vibration-damping rail fastener according to claim 1, characterized in that the fastener body comprises an iron shim plate (8) and a rail shim plate (10) arranged on the iron shim plate (8);
Third positioning convex parts (15) are arranged on the two sides of the iron base plate (8) and positioned on the rail lower base plate (10), and an insulating gauge block (2) is arranged between the third positioning convex parts (15) and the steel rail (11) borne on the rail lower base plate (10);
A T-shaped bolt (3) penetrating through the third positioning convex part (15) is arranged on the iron base plate (8) in a penetrating manner from bottom to top, and an elastic strip (1), a flat washer (5) and a nut (4) are sleeved on the T-shaped bolt (3) in sequence;
Both ends of the elastic strip (1) are respectively buckled and pressed on the third positioning convex part (15) and the insulation track gauge block (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410452972.8A CN118048814B (en) | 2024-04-16 | 2024-04-16 | Higher vibration reduction track fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410452972.8A CN118048814B (en) | 2024-04-16 | 2024-04-16 | Higher vibration reduction track fastener |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118048814A CN118048814A (en) | 2024-05-17 |
| CN118048814B true CN118048814B (en) | 2024-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410452972.8A Active CN118048814B (en) | 2024-04-16 | 2024-04-16 | Higher vibration reduction track fastener |
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| Country | Link |
|---|---|
| CN (1) | CN118048814B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112359653A (en) * | 2020-10-14 | 2021-02-12 | 江阴市江扬标准紧固件制造有限公司 | Fastener for high-speed rail pressing plate and construction process of fastener |
| CN113215867A (en) * | 2021-05-28 | 2021-08-06 | 河北中烁轨道科技有限公司 | Transverse limiting vibration-damping fastener |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101530965B1 (en) * | 2013-10-15 | 2015-06-25 | 한국철도기술연구원 | Rail fastening system with casing for shearing load guidance |
| CN206219899U (en) * | 2016-08-30 | 2017-06-06 | 洛阳双瑞橡塑科技有限公司 | A kind of readily removable assembled separation type double-layer vibration damping fastener system base plate adapter sleeve |
| CN212611725U (en) * | 2020-04-30 | 2021-02-26 | 上海市环境科学研究院 | Adjustable eccentric distance anti-sound short circuit and rail transit fastener |
| CN212611726U (en) * | 2020-04-30 | 2021-02-26 | 上海市环境科学研究院 | An anti-sound short-circuit device and a rail transit fastener provided with the anti-sound short-circuit device |
| CN214613342U (en) * | 2020-12-16 | 2021-11-05 | 广东信力科技股份有限公司 | Vibration damping fastener with double transverse limiting and low vertical rigidity |
| CN214328313U (en) * | 2020-12-25 | 2021-10-01 | 河南鸿邦铁路器材有限公司 | Rail small resistance fastener |
| CN114657821A (en) * | 2022-04-15 | 2022-06-24 | 株洲时代新材料科技股份有限公司 | Track vibration reduction fastener with high transverse stability and rigidity changing method thereof |
| CN218932736U (en) * | 2022-12-07 | 2023-04-28 | 北京铁科首钢轨道技术股份有限公司 | Multi-connection sleeve structure for railway fastener |
| CN116516735A (en) * | 2023-03-20 | 2023-08-01 | 陕西长美科技有限责任公司 | A damping fastener |
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2024
- 2024-04-16 CN CN202410452972.8A patent/CN118048814B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112359653A (en) * | 2020-10-14 | 2021-02-12 | 江阴市江扬标准紧固件制造有限公司 | Fastener for high-speed rail pressing plate and construction process of fastener |
| CN113215867A (en) * | 2021-05-28 | 2021-08-06 | 河北中烁轨道科技有限公司 | Transverse limiting vibration-damping fastener |
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| CN118048814A (en) | 2024-05-17 |
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