CN216891776U - Compression-shear combined high-performance track vibration damping fastener - Google Patents
Compression-shear combined high-performance track vibration damping fastener Download PDFInfo
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- CN216891776U CN216891776U CN202220207500.2U CN202220207500U CN216891776U CN 216891776 U CN216891776 U CN 216891776U CN 202220207500 U CN202220207500 U CN 202220207500U CN 216891776 U CN216891776 U CN 216891776U
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Abstract
The utility model relates to the technical field of elastic damping components for rail transit, in particular to a compression-shear combined high-performance rail damping fastener, wherein a rail damper is formed by integrally vulcanizing a metal plate, a metal frame and an insulating elastomer, the insulating elastomer is positioned between the metal plate and the metal frame, the outer contour of the insulating elastomer is inwards inclined along the vertical direction to form a shear-type insulating elastomer structure, an insulating elastomer boss is arranged at the bottom of the insulating elastomer structure, and a connecting hole for connecting with a sleeper is formed in the metal frame. The utility model has the advantages that: the structure is simple, the number of parts is small, and the transverse displacement of the rail head of the steel rail can be better controlled while lower vertical rigidity is provided; therefore, the vibration reduction and noise reduction requirements of the track line which are increasingly increased in track traffic are met.
Description
Technical Field
The utility model relates to the technical field of elastic damping components for rail transit, in particular to a compression-shear combined high-performance rail damping fastener.
Background
With the vigorous development of rail transit, the problems of environmental vibration and noise caused by the vibration and noise are more and more obvious, the research on vibration and noise reduction of rail transit is more and more important, and the adoption of a vibration reduction fastener is one of effective measures for relieving the environmental vibration and the noise.
The rail vibration damping fastener is mainly classified into a compression type and a shear type according to a vibration damping form. At present, compressibility track damping fastener and shear type track damping fastener have following defect respectively:
(1) the existing compression type track vibration reduction fastener can only achieve a medium vibration reduction effect and is not suitable for a line section with high vibration reduction and noise reduction requirements.
(2) The existing shear type track vibration damping fastener is used as a high-grade vibration damping fastener, although the rigidity is lower and the vibration damping and noise reduction effects are better, the bearing capacity of the high-load track is poor, and particularly the capacity of resisting the transverse deformation of a steel rail head is poor.
(3) The existing track vibration reduction fastener has the defects that main parts usually comprise an insulating track gauge block, a track lower base plate, a device lower base plate and the like, the number of the parts is large, the structure is complex, and the installation and the maintenance are inconvenient.
Therefore, how to seek a novel track damping fastener structure and design idea thereof, can provide effectual support under the heavy load when providing low rigidity, high damping effect, is the problem that awaits solution now.
Disclosure of Invention
The utility model aims to provide a compression-shear combined high-performance track vibration damping fastener according to the defects of the prior art, and through the structural design of a track vibration damper, the high vibration damping effect is ensured, the capacity of bearing a large load is effectively improved, and meanwhile, the installation and the adjustment are convenient.
The purpose of the utility model is realized by the following technical scheme:
a compression-shear combined high-performance rail vibration damping fastener for mounting a rail to a sleeper, with a rail vibration damper provided between the rail and the sleeper, the rail being mounted on the rail vibration damper by the fastener, the rail vibration damper being mounted on the sleeper, characterized in that: the track vibration absorber is formed by integrally vulcanizing a metal plate, a metal frame and an insulating elastomer, wherein the insulating elastomer is positioned between the metal plate and the metal frame, the outer contour of the insulating elastomer is inwards inclined along the vertical direction to form a shear-type insulating elastomer structure, an insulating elastomer boss is arranged at the bottom of the insulating elastomer structure, and a connecting hole for connecting with the sleeper is formed in the metal frame.
The insulating elastomer boss is suspended above the sleeper in a free state.
The connecting holes are kidney-shaped holes, and the metal frame is connected with the sleeper through a spiral spike penetrating through the kidney-shaped holes; the length direction of the kidney-shaped hole is in the same direction as the transverse direction of the steel rail.
Sawteeth are arranged on two sides of the waist-shaped hole, a sawtooth gasket is arranged in the spiral spike in a penetrating mode, and the sawtooth gasket can be meshed with the sawteeth; the saw teeth are arranged along the transverse direction of the steel rail.
And the sleeper is provided with a threaded hole matched with the spiral spike.
The fastener comprises a locknut, an elastic strip and a T-shaped bolt, the T-shaped bolt is connected with the track shock absorber, the locknut is connected with the T-shaped bolt in a matched mode, the elastic strip is arranged between the T-shaped bolt and the locknut and is fixed in a limiting mode, and the elastic strip is used for compressing the steel rail.
The utility model has the advantages that:
(1) the structure is simple, the number of parts is small, and the convenience of installation and maintenance is improved;
(2) the trackless lower base plate and the lower base plate of the device in the structure can reduce the installation height of the steel rail;
(3) the metal plate and the metal frame of the track damper are connected by adopting an insulating high polymer material, so that the insulating property of the track can be improved;
(4) the shear type rubber structure can meet the rigidity of the rail, and the rubber boss can well limit the displacement or turnover of the steel rail;
(5) the transverse position of the steel rail can be simply and conveniently adjusted without replacing parts;
(6) vulcanize integral type track shock absorber, structural stability is high, and damping effect persistence is good.
Drawings
FIG. 1 is an assembled view of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is an exploded view of the shock absorber of the present invention;
fig. 4 is a sectional view of the present invention.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of example in conjunction with the following drawings to facilitate understanding by those skilled in the art:
as shown in fig. 1-4, the symbols in the figures are respectively represented as: the steel rail comprises a steel rail 1, a locknut 2, an elastic strip 3, a T-shaped bolt 4, a spiral spike 5, a spring washer 6, a sawtooth gasket 7, a rail damper 8, a sleeper 9, a metal plate 81, an insulating elastomer 82, a metal frame 83, an insulating elastomer structure 821, an insulating elastomer boss 822, a kidney-shaped hole 831 and sawteeth 832.
Example (b): as shown in fig. 1, the compression-shear coupling type high performance rail damping clip of the present embodiment is used to mount a rail 1 on a tie 9, and the body of the damping clip is located between the rail 1 and the tie 9.
As shown in fig. 2, the compression-shear combined high-performance track vibration damping fastener in this embodiment includes a locknut 2, an elastic strip 3, a T-bolt 4, a screw spike 5, a spring washer 6, a sawtooth washer 7, and a track vibration damper 8.
As shown in fig. 3 and 4, the rail damper 8 includes a metal plate 81 and a metal frame 83, which are integrally molded by vulcanization through an insulating elastic body 82. The metal plate 81 and the metal frame 83 are inclined inward from the outer contour in the vertical direction, and when the insulating elastomer 82 is vulcanized and integrally formed, the insulating elastomer 82 forms an insulating elastomer structure 821 in a shearing mode through the inclination angle of the metal plate 81 and the metal frame 83, so that lower vertical rigidity is provided, and high vibration damping effect is achieved.
In the present embodiment, in order to achieve the insulating effect of the rail 1, the insulating elastic body 82 provided between the metal plate 81 and the metal frame 83 completely isolates the metal plate 81 from the metal frame 83, thereby achieving insulation.
As shown in fig. 4, an insulating elastomer boss 822 is provided in a vulcanized-compressed form on the bottom surface of an insulating elastomer structure 821 formed of the insulating elastomer 82. In the free state, the insulating elastomer boss 822 is suspended, i.e., above the sleeper 9. As the transverse rollover of the steel rail 1 increases, the insulating elastomer boss structure 822 deforms in a contact manner to resist the transverse rollover of the steel rail 1, thereby forming a compression type vibration damping fastener, so that the steel rail 1 can bear larger loads, particularly loads of transverse deformation of a rail head of the steel rail.
In this embodiment, as shown in fig. 4, the insulating elastomer bosses 822 may be uniformly arranged on the bottom surface of the insulating elastomer structure 821 to improve its performance.
As shown in fig. 3, a kidney-shaped hole 831 and saw teeth 832 are provided on the metal frame 83, wherein the length direction of the kidney-shaped hole 831 and the saw teeth 832 are arranged along the transverse direction of the rail, so that the rail damper 8 can adjust the transverse position of the rail damper on the sleeper 9, thereby achieving the transverse position adjustment of the rail 1.
Specifically, as shown in fig. 2, the metal plate 81 of the rail damper 8 is fixedly connected to the sleeper 9 by the screw spike 5. The screw spike 5 passes through the spring washer 6, the sawtooth washer 7 and the metal frame 83 in sequence, and the screw spike 5 is screwed into a threaded hole of the sleeper 9 by applying a certain torque, so that the vibration damping fastener can be fixed on the sleeper 9. In this case, the serration shims 7 can engage with the serrations 832, so that the connection strength, in particular the transverse connection strength, between the screw spike 5 and the sleeper 9 is increased.
As shown in fig. 2, the steel rail 1 is seated on the metal plate 81, the T-bolt 4 and the groove on the metal plate 81 are connected and fixed, the elastic strip 3 is fixed in a limited manner by the locknut 2 and the T-bolt 4, and the elastic strip 3 acts on the steel rail 1 and compresses the steel rail 1, so that the connection between the steel rail 1 and the rail damper 8 is realized.
Although the conception and the embodiments of the present invention have been described in detail with reference to the drawings, those skilled in the art will recognize that various changes and modifications can be made therein without departing from the scope of the appended claims, and therefore, they are not to be considered repeated herein.
Claims (6)
1. A compression-shear combined high-performance rail vibration damping fastener for mounting a rail to a sleeper, with a rail vibration damper provided between the rail and the sleeper, the rail being mounted on the rail vibration damper by the fastener, the rail vibration damper being mounted on the sleeper, characterized in that: the track vibration absorber is formed by integrally vulcanizing a metal plate, a metal frame and an insulating elastomer, wherein the insulating elastomer is positioned between the metal plate and the metal frame, the outer contour of the insulating elastomer is inwards inclined along the vertical direction to form a shear-type insulating elastomer structure, an insulating elastomer boss is arranged at the bottom of the insulating elastomer structure, and a connecting hole for connecting with the sleeper is formed in the metal frame.
2. The compression-shear combined high-performance track damping fastener according to claim 1, wherein: the insulating elastomer boss is suspended above the sleeper in a free state.
3. The compression-shear combined high-performance track damping fastener according to claim 1, wherein: the connecting holes are kidney-shaped holes, and the metal frame is connected with the sleeper through a spiral spike penetrating through the kidney-shaped holes; the length direction of the kidney-shaped hole is in the same direction as the transverse direction of the steel rail.
4. The compression-shear combined high-performance track damping fastener according to claim 3, wherein: sawteeth are arranged on two sides of the waist-shaped hole, a sawtooth gasket is arranged in the spiral spike in a penetrating mode, and the sawtooth gasket can be meshed with the sawteeth; the saw teeth are arranged along the transverse direction of the steel rail.
5. The compression-shear combined high-performance track damping fastener according to claim 3, wherein: and the sleeper is provided with a threaded hole matched with the spiral spike.
6. The compression-shear combined high-performance track damping fastener according to claim 1, wherein: the fastener comprises a locknut, an elastic strip and a T-shaped bolt, the T-shaped bolt is connected with the track shock absorber, the locknut is connected with the T-shaped bolt in a matched mode, the elastic strip is arranged between the T-shaped bolt and the locknut and is fixed in a limiting mode, and the elastic strip is used for compressing the steel rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220207500.2U CN216891776U (en) | 2022-01-26 | 2022-01-26 | Compression-shear combined high-performance track vibration damping fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220207500.2U CN216891776U (en) | 2022-01-26 | 2022-01-26 | Compression-shear combined high-performance track vibration damping fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216891776U true CN216891776U (en) | 2022-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220207500.2U Active CN216891776U (en) | 2022-01-26 | 2022-01-26 | Compression-shear combined high-performance track vibration damping fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216891776U (en) |
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2022
- 2022-01-26 CN CN202220207500.2U patent/CN216891776U/en active Active
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