CN108360309B - Reinforced track vibration damping fastener - Google Patents
Reinforced track vibration damping fastener Download PDFInfo
- Publication number
- CN108360309B CN108360309B CN201810281511.3A CN201810281511A CN108360309B CN 108360309 B CN108360309 B CN 108360309B CN 201810281511 A CN201810281511 A CN 201810281511A CN 108360309 B CN108360309 B CN 108360309B
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- Prior art keywords
- base plate
- iron base
- floating
- elastic
- pad
- Prior art date
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Links
- 238000013016 damping Methods 0.000 title claims abstract description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 190
- 229910052742 iron Inorganic materials 0.000 claims abstract description 95
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 30
- 239000010959 steel Substances 0.000 claims abstract description 30
- 229920001971 elastomer Polymers 0.000 claims abstract description 28
- 238000002955 isolation Methods 0.000 claims abstract description 19
- 230000006835 compression Effects 0.000 claims abstract description 17
- 238000007906 compression Methods 0.000 claims abstract description 17
- 241001669679 Eleotris Species 0.000 claims abstract description 7
- 238000003754 machining Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000002861 polymer material Substances 0.000 claims description 3
- 229920003225 polyurethane elastomer Polymers 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000007704 transition Effects 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
- 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
-
- 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
- E01B9/681—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by the material
- E01B9/683—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by the material layered or composite
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Railway Tracks (AREA)
Abstract
The reinforced track vibration damping fastener anchors the lower iron pad and the lower plate pad on the sleeper through the lower end screw thread of the stud, the upper part positioned on the lower iron pad is provided with a floating iron pad, the vibration isolation rubber pad is arranged between the floating iron pad and the lower iron pad, and the floating iron pad and the lower iron pad are respectively provided with two elastic guide components along the vertical direction of the steel rail and parallel to the two sides of the steel rail; the bottom of the floating iron base plate is extended with two wedge-shaped retaining shoulders which are inserted into the elastic sliding sleeves in the corresponding rectangular slotted holes of the lower iron base plate and are matched with each other, and the steel rail is limited in the longitudinal and transverse directions and slides up and down; sleeving four through holes on the floating iron backing plate at the upper end of the stud bolt through the insulating bush, the compression spring and the locknut; the steel rail is limited and buckled on the floating iron base plate through a rubber base plate under the rail, an insulated rail cushion block, a T-shaped bolt, a nut and an elastic strip. The high vibration isolation capability is realized on the whole, and the use reliability is greatly improved.
Description
Technical Field
The application relates to the technical field of rail transit, in particular to a reinforced rail vibration damping fastener.
Background
The urban rail transit brings convenience to people when traveling, and the wheel-rail coupled vibration also brings vibration and noise pollution problems to surrounding buildings. The adoption of vibration damping buckles on the track is one of effective measures for relieving the surrounding environment and noise. The vibration damping performance and transverse rigidity of various vibration damping fasteners in the prior art are not ideal.
Disclosure of Invention
The inventor aims at the defects of the prior vibration damping fasteners and provides a reinforced track vibration damping fastener, by reducing the vibration damping rigidity of the track fastener and improving the transverse rigidity and deflection rigidity of the fastener, the fastener not only has higher vibration damping performance, but also can effectively reduce the abrasion of a steel rail, improve the phenomenon of rail wave grinding, prolong the service life of the steel rail and reduce the grinding times of the steel rail, and meanwhile, the vibration damping rigidity of the fastener can be finely adjusted according to the requirements on different requirements on a track line.
The technical scheme adopted by the application is as follows:
the reinforced track vibration damping fastener anchors a lower iron base plate and a lower plate base plate on a sleeper through threads at the lower end of a stud, wherein the lower plate base plate is arranged at the lower part of the lower iron base plate, a floating iron base plate is arranged at the upper part of the lower iron base plate, a vibration isolation rubber base plate is arranged between the floating iron base plate and the lower iron base plate, and two elastic guide assemblies are respectively arranged at two sides of the floating iron base plate and the lower iron base plate along the vertical direction of a steel rail and parallel to the steel rail; two wedge-shaped retaining shoulders extend from the bottom of the floating iron base plate, are inserted into elastic sliding sleeves in corresponding rectangular slotted holes of the lower iron base plate in a embedding manner, are matched with each other, limit in the longitudinal and transverse directions of the steel rail and slide up and down; sleeving four through holes on the floating iron backing plate at the upper end of the stud bolt through the insulating bush, the compression spring and the locknut; the steel rail is limited and buckled on the floating iron base plate through a rubber base plate under the rail, an insulated rail cushion block, a T-shaped bolt, a nut and an elastic strip.
The further technical scheme is as follows:
elastic sliding sleeves are respectively arranged in rectangular slotted holes on two sides of the lower iron base plate, elastic supporting blocks made of polyurethane elastomer are arranged on the outer sides of the elastic sliding sleeves extruded by transverse force, and the elastic sliding sleeves are made of high-strength wear-resistant self-lubricating high polymer materials.
Two wedge-shaped retaining shoulders are arranged on two sides of the bottom of the floating iron base plate and at corresponding positions of the elastic sliding sleeve of the lower iron base plate, and the sliding contact surface of the wedge-shaped retaining shoulders and the elastic sliding sleeve is a machining surface with high finish.
In the assembly of the floating iron base plate and the lower iron base plate, two elastic guide components are arranged, so that elastic guide is formed between the wedge-shaped retaining shoulder and the elastic sliding sleeve.
The elastic guide component is a combination of a wedge-shaped retaining shoulder and an elastic sliding sleeve.
The four corners of the floating iron backing plate are respectively provided with a through hole, the through holes are sleeved at the upper ends of the stud bolts, the floating iron backing plate is pre-pressed by the insulating bush, the compression spring and the locknut, and the dynamic and static stiffness of the fastener and the vibration frequency of the steel rail are controlled and adjusted by adjusting the compression amount of the compression spring.
The section of the elastic sliding sleeve is in a convex structure.
The vibration isolation rubber backing plate has the structure that: comprises a rubber backing plate body, two ends of which are respectively provided with square holes penetrating through wedge-shaped retaining shoulders.
The inside that board lower bolster both ends were slotted is provided with the step, step and elastic sliding sleeve cooperation.
The beneficial effects of the application are as follows:
the application has compact and reasonable structure and convenient operation, and the vibration isolation rubber pad is arranged at the lower part of the special installation of the floating iron pad, so that the vibration isolation rubber pad can generate up-down displacement, the middle part can absorb vibration, the floating iron pad can float in the vertical direction, and the vibration reduction effect is realized; meanwhile, due to the design of the wedge-shaped retaining shoulder at the bottom of the floating iron base plate, stress concentration can be avoided, and shearing strength is improved, so that high vibration isolation capability is realized on the whole, and use reliability is greatly improved.
The main bright points of the application are as follows:
the vibration damping performance is higher; the mounting structure of the floating iron pad can realize up-and-down sliding in the vertical direction, and the vibration damping performance is greatly improved due to the special shape and special material design of the vibration isolation rubber pad.
The transverse rigidity is greatly improved from the original condition that only 5-40KN of vertical load and 2.5-20KN of transverse load can be born, and the vertical load is improved to 10-60KN and 5-30KN of transverse load; the application adopts the design of the elastic sliding sleeve, has small friction coefficient, avoids stress concentration, simultaneously, the design of the wedge-shaped retaining shoulder at the bottom of the floating iron base plate, and the sliding sleeve on the lower iron base plate can slide up and down to always limit the sliding sleeve in a limited way, thereby improving deflection rigidity.
Thirdly, the compression amount can be adjusted through the action of four layers of springs, so that the damping rigidity of the fastener is finely adjusted; the steel rail is provided with a linear type and a curve type, the curve type steel rail also has a large radius and a small radius, each centrifugal force and each centripetal force are different, the curve has a slope, one side is high and the other side is low, the lower side is stressed greatly, a damping fastener with high rigidity is required, the safety performance is improved, and the higher side is stressed little, and a damping fastener with low rigidity is required; the rigidity of the conventional fastener cannot be adjusted, and the conventional fastener is also partially curved and linear, so that the practicality is poor, and the conventional fastener is particularly poor in reliability when applied to a rail running on a curve.
Drawings
Fig. 1 is a schematic structural view of the present application.
Fig. 2 is an exploded view of the present application.
FIG. 3 is a front view (full sectional view) of the present application
Fig. 4 is a schematic structural view of the floating iron pallet of the present application.
Fig. 5 is a front view of the floating iron pallet of the present application.
FIG. 6 is a schematic view of the structure of the rubber mat of the present application.
Wherein: 1. a steel rail; 2. rubber backing plate under rail; 3. spring strips; 4. a nut; 5. an insulated rail cushion block; 6. a floating iron pad; 7. a vibration isolation rubber backing plate; 8. a lower iron backing plate; 9. an elastic sliding sleeve; 10. a pad under the plate; 11. a locknut; 12. a compression spring; 13. a stud bolt; 14. an insulating bush; 15. short sleeper; 601. a through hole; 602. a pad body; 603. a mounting base; 604. wedge-shaped stop shoulders; 701. square holes; 702. a rubber backing plate body.
Detailed Description
The following describes specific embodiments of the present application with reference to the drawings.
As shown in fig. 1, 2 and 3, the reinforced rail vibration damping fastener of the present embodiment includes a short sleeper 15, a lower iron pad 8 and a lower plate pad 10 are anchored on the short sleeper 15 by lower threads of a stud 13, the lower plate pad 10 is located at the lower part of the lower iron pad 8, both ends of the lower plate pad 10 and the lower iron pad 8 are respectively slotted, and elastic sliding sleeves 9 are respectively installed in the slotted holes; the upper surface of the lower iron base plate 8 is provided with a floating iron base plate 6 through a vibration isolation rubber base plate 7, the bottom of the floating iron base plate 6 is provided with a wedge-shaped shoulder 604, the wedge-shaped shoulder 604 is embedded into the elastic sliding sleeve 9, and the wedge-shaped shoulder 604 slides up and down along the elastic sliding sleeve 9; simultaneously, the floating iron pad 6 passes through the upper threads of the stud 13, and a four-layer spring 12 and a locknut 11 are arranged on the top of the stud 13; the middle part of the upper surface of the floating iron backing plate 6 is provided with a steel rail 1 through a rubber backing plate 2 under the rail, and the steel rail 1 is limited and buckled on a fastener through an insulated rail cushion block 5, a T-shaped bolt, a nut 4 and an elastic strip 3 at two ends of the floating iron backing plate.
As shown in fig. 4 and 5, the floating iron pallet 6 has the structure: the anti-collision device comprises a base plate body 602, wherein mounting seats 603 are respectively extended at two ends of the upper surface of the base plate body 602, and an insulated rail cushion block 5, a T-shaped bolt nut 4 and an elastic strip 3 are mounted at the mounting seats 603; the four corners of the pad body 602 are respectively provided with through holes 601, and the through holes 601 penetrate through the stud bolts 13; wedge-shaped shoulders 604 extend from both ends of the lower surface of the pad body 602.
The outer side surface of the wedge-shaped retaining shoulder 604 is abutted with the inner wall surface of the elastic sliding sleeve 9, and the inner side surface of the wedge-shaped retaining shoulder 604 is spaced from the inner wall surface of the elastic sliding sleeve 9.
The outer side of the wedge-shaped shoulder 604 is a contact surface, and is also a machined surface, while the inner side is a non-contact surface.
The two ends of the root of the wedge-shaped shoulder 604 are all in arc structures, the angle formed by the arc surface at the left end is a, the angle formed by the arc surface at the right end is b, and the angle formed by the arc surface at the left end is smaller than the angle formed by the arc surface at the right end.
The section of the elastic sliding sleeve 9 is in a convex structure.
As shown in fig. 6, the vibration-damping rubber pad 7 has the following structure: comprises a rubber pad body 702, and square holes 701 penetrating through the wedge-shaped shoulders 604 are respectively arranged at two ends of the rubber pad body.
The inside of the grooves at the two ends of the plate lower backing plate 10 is provided with steps which are matched with the elastic sliding sleeve 9.
The two ends of the lower iron backing plate 8 are grooved into straight grooves.
The floating iron shim plate 6 is mounted with stud bolts 13 through insulating bushings 14.
The concrete structure of the application is as follows: the lower iron pad 8 and the lower plate pad 10 are anchored on the sleeper through the lower end threads of the stud bolts 13; the vibration isolation rubber cushion plate 7 is arranged between the floating iron cushion plate 6 and the lower iron cushion plate 8, and the floating iron cushion plate 6 and the lower iron cushion plate 8 are respectively provided with two elastic guide components at two sides which are vertical to the steel rail 1 and parallel to the steel rail 1; two wedge-shaped stop shoulders 604 at the bottom of the floating iron base plate 6 are embedded into elastic sliding sleeves 9 in corresponding rectangular slotted holes of the lower iron base plate 8 and are matched with each other to limit and slide up and down in the longitudinal and transverse directions of the steel rail 1; in order to prevent the wedge-shaped shoulder on the floating iron pad plate 6 from possibly disengaging from the elastic sliding sleeve 9 when being pulled up, the four through holes 601 on the floating iron pad plate 6 are sleeved at the upper end of the stud bolt 13 by using the insulating bush 14, the compression spring 12 and the locknut 11; the steel rail 1 is limited and buckled on the floating iron base plate 6 through the rubber base plate 2 under the rail, the insulated rail cushion block 5, the T-shaped bolts, the nuts 4 and the elastic strips 3.
Two elastic sliding sleeves 9 are arranged in rectangular slotted holes on two sides of the lower iron base plate 8, and elastic supporting blocks (not shown in the figure) made of polyurethane elastomer are arranged on the outer sides of the sliding sleeves extruded by transverse force, and the elastic sliding sleeves 9 are made of high-strength wear-resistant self-lubricating polymer materials.
Two wedge-shaped retaining shoulders 604 are arranged on the two sides of the floating iron base plate 6 and the corresponding positions of the elastic sliding sleeve 9 of the lower iron base plate 8, and the sliding contact surface of the wedge-shaped retaining shoulders and the sliding sleeve is a machining surface with high smoothness for reducing friction force, reducing abrasion of materials and ensuring assembly accuracy.
In the assembly of the floating iron pad 6 and the lower iron pad 8, two elastic guide components are arranged, so that elastic guide is formed between the wedge-shaped stop shoulder 604 and the elastic sliding sleeve 9, and the fastener has enough lateral load resistance and the longitudinal resistance of the steel rail 1 to the extending direction of the steel rail 1, and can attenuate vibration and noise transmitted between the guide components and between the wheels and the steel rail 1.
The elastic guiding component is a combination of the wedge-shaped shoulder 604 and the elastic sliding sleeve 9.
Between the floating iron base plate 6 and the lower iron base plate 8, a specially designed high-elasticity vibration isolation rubber base plate 7 is arranged, so that the fastener realizes high-grade vibration isolation, and vibration and noise generated in rail transit operation are effectively solved.
The four through holes 601 on the floating iron backing plate 6 are sleeved at the upper end of the stud 13, the floating iron backing plate 6 is pre-pressed by the insulating bush 14, the compression spring 12 and the locknut 11, and the dynamic and static stiffness of the fastener and the vibration frequency of the steel rail 1 can be controlled and adjusted by adjusting the compression amount of the compression spring.
The application can adjust the vibration damping rigidity of the vibration damping fastener, and can be finely adjusted according to the requirements of different application occasions, and only the compression amount of the compression spring 12 needs to be adjusted.
The application can slide up and down while buckling the wedge-shaped shoulder 604 of the floating iron pad 6 and the elastic sliding sleeve 9 due to the special design of the floating iron pad 6, so that the floating iron pad 6 is locked with the vibration isolation rubber pad 7, the lower iron pad 8 and the lower plate pad 10 at the lower part without adopting other locking mechanisms, the vibration damping performance of the vibration damping fastener is greatly improved by adopting the connecting mode, the transverse rigidity is higher, the deflection rigidity is effectively improved, and the vibration damping fastener can be flexibly applied to various occasions.
In the actual use process, as shown in fig. 1, the vibration isolator is installed, and in the working process, a good vibration isolation effect is achieved through the integral device, so that noise is greatly reduced and vibration pollution of the environment is reduced when a train passes through.
The root of the wedge-shaped shoulder 604 of the floating iron base plate 6 adopts a circular arc structure, and the stress is concentrated through circular arc transition, if a right-angle structure is adopted, the stress is larger, and the fracture is easy to occur.
The angle formed by the arc surface at the left end of the wedge-shaped shoulder 604 is smaller than the angle formed by the arc surface at the right end, so that the shearing force of a contact surface can be increased, the stress concentration is avoided, the shearing strength is improved, and the use reliability is improved.
The vibration isolation rubber backing plate 7 is not completely positioned in the use process, can generate up-and-down displacement, is positioned in the middle position, can isolate vibration and absorb, avoids complete clamping of sampling in the prior art, and can not absorb the effect of middle vibration isolation.
Meanwhile, the application can be applied to any fastener installation on the existing track line, has strong use flexibility, and can improve the bearing capacity of the load without increasing the width, the length and the rail bottom height.
Under the condition that the actual use situation needs higher strength, the size of the wedge-shaped retaining shoulder 604 can be increased, other sizes can be unchanged, the structure is compact, and the maintenance and the installation are convenient.
The above description is intended to illustrate the application and not to limit it, the scope of which is defined by the claims, and any modifications can be made within the scope of the application.
Claims (5)
1. A reinforced track vibration damping fastener is characterized in that: the lower iron base plate (8) and the lower plate base plate (10) are anchored on the sleeper through the lower end screw threads of the stud bolts (13), the lower plate base plate (10) is arranged at the lower part of the lower iron base plate (8), a floating iron base plate (6) is arranged at the upper part of the lower iron base plate (8), the vibration isolation rubber base plate (7) is arranged between the floating iron base plate (6) and the lower iron base plate (8), and two elastic guide assemblies are respectively arranged at two sides of the floating iron base plate (6) and the lower iron base plate (8) along the vertical direction of the steel rail (1) and parallel to the steel rail (1); two wedge-shaped retaining shoulders (604) are extended at the bottom of the floating iron base plate (6), and the wedge-shaped retaining shoulders (604) are embedded into elastic sliding sleeves (9) in corresponding rectangular slotted holes of the lower iron base plate (8) and are mutually matched, limit is carried out in the longitudinal and transverse directions of the steel rail (1) and slide up and down; four through holes (601) on the floating iron backing plate (6) are sleeved at the upper end of the stud bolt (13) through the insulating bushing (14), the compression spring (12) and the locknut (11); the steel rail (1) is limited and buckled on the floating iron base plate (6) through the rubber base plate (2) under the rail, the insulated rail cushion block (5), the T-shaped bolt, the nut (4) and the elastic strip (3); elastic sliding sleeves (9) are respectively arranged in rectangular slotted holes at two sides of the lower iron base plate (8), elastic supporting blocks made of polyurethane elastomer are arranged at the outer sides of the elastic sliding sleeves (9) extruded by transverse force, and the elastic sliding sleeves (9) are made of high-strength wear-resistant self-lubricating polymer materials; two wedge-shaped retaining shoulders (604) are arranged on the two sides of the bottom of the floating iron base plate (6) and at the corresponding positions of the elastic sliding sleeve (9) of the lower iron base plate (8), and the sliding contact surface of the wedge-shaped retaining shoulders (604) and the elastic sliding sleeve (9) is a machining surface with high smoothness; in the assembly of the floating iron base plate (6) and the lower iron base plate (8), two elastic guide components are arranged, so that elastic guide is formed between the wedge-shaped retaining shoulder (604) and the elastic sliding sleeve (9); the elastic guide component is a combination of a wedge-shaped shoulder (604) and an elastic sliding sleeve (9).
2. A reinforced track vibration damping fastener as claimed in claim 1 wherein: the four corners of the floating iron base plate (6) are respectively provided with a through hole (601), the through holes (601) are sleeved at the upper ends of the stud bolts (13), the floating iron base plate (6) is pre-pressed by the insulating bush (14), the compression spring (12) and the locknut (11), and the dynamic and static stiffness of the fastener and the vibration frequency of the steel rail (1) are controlled and adjusted by adjusting the compression amount of the compression spring (12).
3. A reinforced track vibration damping fastener as claimed in claim 1 wherein: the section of the elastic sliding sleeve (9) is in a convex structure.
4. A reinforced track vibration damping fastener as claimed in claim 1 wherein: the vibration isolation rubber backing plate (7) has the structure that: comprises a rubber cushion plate body (702), and square holes (701) penetrating through wedge-shaped shoulders (604) are respectively arranged at two ends of the rubber cushion plate body.
5. A reinforced track vibration damping fastener as claimed in claim 1 wherein: the inside of the grooves at the two ends of the plate lower backing plate (10) is provided with steps which are matched with the elastic sliding sleeve (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810281511.3A CN108360309B (en) | 2018-04-02 | 2018-04-02 | Reinforced track vibration damping fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810281511.3A CN108360309B (en) | 2018-04-02 | 2018-04-02 | Reinforced track vibration damping fastener |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108360309A CN108360309A (en) | 2018-08-03 |
| CN108360309B true CN108360309B (en) | 2023-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810281511.3A Active CN108360309B (en) | 2018-04-02 | 2018-04-02 | Reinforced track vibration damping fastener |
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| Country | Link |
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| CN (1) | CN108360309B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258199A (en) * | 2019-06-06 | 2019-09-20 | 中铁第四勘察设计院集团有限公司 | Track structure with stiffness transition under vibration-damping ballast and common railway roadbed and plate |
| CN110158375B (en) * | 2019-06-28 | 2023-10-31 | 上海工程技术大学 | Switch type spring strip double-layer elastic vibration reduction fastener system |
| CN111379200A (en) * | 2020-05-29 | 2020-07-07 | 中铁工程设计咨询集团有限公司 | Device for reducing switching force of frog point rail of movable point rail |
| CN112431074B (en) * | 2020-12-14 | 2022-06-10 | 中铁二院工程集团有限责任公司 | Double-layer track vibration reduction fastener with shoulder |
| CN113718565A (en) * | 2021-08-30 | 2021-11-30 | 中铁隆昌铁路器材有限公司 | Semi-separation type double-layer nonlinear vibration attenuation fastener |
| CN116289347A (en) * | 2023-03-16 | 2023-06-23 | 无锡时代智能交通研究院有限公司 | Split type double-layer nonlinear spring vibration damping fastener |
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| Title |
|---|
| 整体硫化弹性铁垫板结构设计研究;丁静波;《铁道标准设计》;第62卷(第3期);第23-26页 * |
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|---|---|
| CN108360309A (en) | 2018-08-03 |
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