CN217629179U - Vibration damping fastener - Google Patents
Vibration damping fastener Download PDFInfo
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- CN217629179U CN217629179U CN202220012179.2U CN202220012179U CN217629179U CN 217629179 U CN217629179 U CN 217629179U CN 202220012179 U CN202220012179 U CN 202220012179U CN 217629179 U CN217629179 U CN 217629179U
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Abstract
The utility model discloses a damping fastener, include: the damping device comprises a lower base plate (2), an upper base plate (3), a first adjusting plate (5), a second adjusting plate (6), omega elastic strips (7), T-shaped bolts (8) and double-side frustum damping pads (17), wherein the lower base plate comprises side plates which are formed at two ends and protrude upwards, grooves formed on the upper surfaces of the side plates close to the two ends and through holes formed in the middle; the upper backing plate is arranged on the upper surface and the lower surface of the double-side frustum damping pad on the lower backing plate, a plurality of frustums are formed on the upper surface and the lower surface of the double-side frustum damping pad, the whole thickness of the upper backing plate is slightly larger than the depth of the through hole, and the shape of the double-side frustum damping pad is consistent with that of the through hole of the lower backing plate and is arranged in the through hole; the first adjusting plate is arranged between the first convex block and the side plate, and the second adjusting plate is arranged on the inner side of the third convex block; the omega elastic strip is fixed by the T-shaped bolt and arranged on the first lug and the second lug.
Description
Technical Field
The utility model relates to a track traffic technical field, more specifically relate to a damping fastener.
Background
With the rapid development of urban rail transit and the attention of the public on the influence of vibration noise, the problem of environmental pollution caused by vibration noise and the like due to 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.
The damping fastener not only needs to provide damping performance and a track gauge adjusting function, but also guarantees the driving safety of the track. In the aspect of driving safety, the fastener is to firmly fix the steel rail on the sleeper so as to avoid the steel rail from creeping, so that the fastener is required to provide a certain longitudinal force to avoid the problems; secondly, the transverse rigidity is improved to reduce the transverse displacement caused by the transverse force of the wheel track. The damping fastener that exists at present can only provide horizontal power mostly, can not provide simultaneously and indulge horizontal power, and gauge adjustment part also damages easily moreover, has increased the fastener and has changed the frequency.
Therefore, new technologies and devices are needed to be developed to solve some of the technical problems in the prior art.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model discloses an embodiment provides a novel damping fastener, and it can be used to the rail, can provide simultaneously vertical and horizontal spacing, supply gauge adjustment part not fragile, can partially overcome the problem that exists among the prior art.
According to the utility model discloses an aspect provides a damping fastener, include:
a lower backing plate (2), an upper backing plate (3), a first adjusting plate (5), a second adjusting plate (6), omega elastic strips (7), T-shaped bolts (8) and two-side frustum vibration-damping pads (17),
wherein the lower pad plate (2) comprises side plates (21) which are formed at two ends and protrude upwards, grooves (22) formed on the upper surfaces of the side plates close to the two ends and a through hole (23) formed in the middle;
the upper cushion plate (3) is arranged on the lower cushion plate (2) and comprises first protruding blocks (31) which are formed at two ends and protrude upwards, second protruding blocks (32) which are formed on the upper surface and correspond to the first protruding blocks respectively and are spaced at a certain distance, and third protruding blocks (33) formed by downward extension of the first protruding blocks (31), wherein clamping grooves (322) are formed in the middles of the second protruding blocks (32) and used for fixing one end of a T-shaped bolt (8);
the upper surface and the lower surface of the double-side frustum damping pad (17) are provided with a plurality of frustums, the whole thickness of the double-side frustum damping pad is slightly larger than the depth of the through hole (23), and the shape of the double-side frustum damping pad (17) is consistent with that of the through hole (23) of the lower backing plate (2) and is arranged in the through hole (23);
the first adjusting plate (5) is arranged between the first lug (31) and the side plate (21), the second adjusting plate (6) is arranged on the inner side of the third lug (33), and the lower end of the first adjusting plate (5) is arranged in the groove (22) together with the third lug (33) and the second adjusting plate (6);
the omega elastic strip (7) is fixed by a T-shaped bolt (8) and is arranged on the first lug (31) and the second lug (32).
According to the utility model discloses an embodiment, damping fastener still includes first gauge block (14) and second gauge block (15), sets up respectively between rail end and second lug (32) of rail (9) both sides, and omega bullet strip (7) still set up on first gauge block (14) and second gauge block (15) from this.
According to the utility model discloses an embodiment, damping fastener still includes upper padding plate inserted block (4), sets up between first lug (31) and third lug (33), and omega bullet strip (7) still set up on upper padding plate inserted block (4) from this.
According to the utility model discloses an embodiment, is formed with fixture block (321) on the upper surface of second lug (32) for it is spacing to carry out omega bullet strip (7).
According to the utility model discloses an embodiment, damping fastener still includes rubber tie plate (16) under the rail, sets up between the upper surface of the rail foot lower surface of rail (9) and upper padding plate (3).
According to the utility model discloses an embodiment, damping fastener still includes lower floor's rubber pad (1), sets up between lower bolster (2) and sleeper (18) to the middle part is formed with the through-hole corresponding with through-hole (23).
According to the utility model discloses an embodiment, damping fastener still includes preloading device, is formed with the through-hole in lower bolster (2) and upper padding plate (3), and preloading device can adjust the pretightning force between lower bolster (2) and upper padding plate (3) through preloading device in inserting the through-hole.
According to the utility model discloses an embodiment, preloading device includes pretension spring bearing seat (11), pretension spring (12) and double-end spiral spike (13).
According to the utility model discloses an embodiment is formed with lateral wall groove (24) on the lateral wall of through-hole (23), is formed with lateral wall arch (171) on the side of two side frustum damping pads (17), and lateral wall arch (171) inlays in lateral wall groove (24).
The utility model discloses a damping fastener can be applied to damping fastener technical field such as track traffic height, has for example and indulges horizontal limit function, can realize high-grade damping, and gauge adjustment part advantage such as not fragile.
Drawings
Fig. 1 is a perspective view of a vibration damping fastener according to an embodiment of the present invention;
fig. 2 is a schematic structural cross-sectional view of a vibration damping fastener according to an embodiment of the present invention mounted on a sleeper;
FIG. 3 is a top view of a vibration damping fastener according to an embodiment of the present invention;
fig. 4 is an exploded view of a vibration damping fastener according to an embodiment of the present invention;
FIG. 5 is a schematic view of an upper backing plate and adjustment plate assembly of a vibration damping fastener according to an embodiment of the present invention; and
fig. 6 is a schematic view of the lower pad structure of the damping fastener according to an embodiment of the present invention.
Detailed Description
The invention will be better understood from the following examples and from the figures. However, those skilled in the art will readily appreciate that the description of the embodiments is only for the purpose of illustrating the present invention and should not be taken as limiting the invention.
Referring to fig. 1 to 6, a vibration damper fastener for a rail 9 according to an embodiment may include a lower rubber pad 1, a lower pad 2, an upper pad 3, an upper pad insert 4, first and second adjustment plates 5 and 6, an omega spring bar 7, a T-bolt 8, an insulation sleeve 10, a pre-tightening spring bearing seat 11, a pre-tightening spring 12, a double-headed screw spike 13, first and second gauge blocks 14 and 15, an under-rail rubber pad 16, and a double-sided frustum vibration damper pad 17. Wherein the lower mat 2 and the upper mat 3 may be made of a metal material such as iron, stainless steel, etc.; the upper cushion plate insert block 4, the first adjusting plate 5, the second adjusting plate 6, the double-side frustum vibration damping pad 17 and the like can be made of elastic materials such as rubber, polyurethane and other organic materials; the omega spring 7 is shaped like the letter omega and can be made of a metallic material, such as a steel material.
As shown in fig. 4, the lower rubber pad 1 is placed between the sleeper 18 and the lower pad 2, and has a function of preventing high frequency failure. The lower rubber pad 1 has a shape similar to that of the lower mat 2 as a whole, and is formed with a through hole in the middle corresponding to the through hole 23 of the lower mat 2.
Referring to fig. 6, the lower gasket 2 includes upwardly protruding side plates 21 formed at both ends, a groove 22 formed on an upper surface of the side plates near both ends, and a through-hole 23 formed at the center; a sidewall groove 24 is formed on the sidewall of the through hole 23.
A plurality of frustums are formed on the upper and lower surfaces of the double-sided frustum vibration damping pad 17 and side wall protrusions 171 corresponding to the side wall grooves 24 are formed on the side surfaces; the shape of the double-sided frustum vibration damping pad 17 is conformed to the through-hole 23 of the lower pad plate 2, whereby the double-sided frustum vibration damping pad 17 is placed in the through-hole 23, and the side wall protrusions 171 are fitted into the side wall grooves 24. The overall thickness of the double-sided frustum vibration-damping pad 17 is slightly larger than the depth of the through hole 23, and thus the double-sided frustum vibration-damping pad 17 is slightly higher than the upper surface of the lower iron shim plate 2. The double-side frustum vibration-damping pad 17 can be made of a material with medium-high vibration-damping characteristics, the adjustment of different rigidity of the vibration-damping pad can be realized by adjusting the shape and arrangement mode of the double-side frustum, and the vibration-damping function of the fastener is realized by the extrusion deformation of the double-side frustum vibration-damping pad in work;
referring to fig. 4 and 5, the upper pad plate 3 is disposed above the lower pad plate 2 and the double-sided frustum vibration damping pad 17, and may include first protrusions 31 formed at both ends thereof to protrude upward, second protrusions 32 formed on an upper surface thereof to correspond to the first protrusions, respectively, and spaced apart from each other by a certain distance, and third protrusions 33 formed by the first protrusions 31 to extend downward, wherein a catching block 321 is formed on an upper surface of the second protrusions 32 to catch the ω -shaped elastic strip 7, and a catching groove 322 is formed in the second protrusions 32 to fix one end of the T-bolt 8, wherein the catching groove may be opened to face the first protrusions 31, whereby the T-bolt 8 may be introduced into the catching groove through a space between the first protrusions 31 and the second protrusions 32.
The third bump 33 extending from the lower end face of the upper cushion plate 3 is inserted into the groove 22 of the lower cushion plate 2 by combining with the first and second adjusting plates 5 and 6, so that the vertical limiting function is achieved, wherein the adjusting plates can be made of high polymer materials, and the adjusting plates with corresponding thicknesses can be changed according to the track gauge requirements, so that the track gauge can be finely adjusted. The first projection 31 of the upper mat 3 is in close contact with the upwardly projecting side plate 21 of the lower mat 2 via the first adjustment plate 5, whereby the structure has a lateral restraining function.
After the upper backing plate 3 is placed, an insulating sleeve 10 can be placed in a screw hole in the upper backing plate and a screw hole in the lower backing plate, then a pre-tightening device formed by combining a pre-tightening spring bearing seat 11, a pre-tightening spring 12 and a double-head spiral spike 13 is screwed into a stainless steel sleeve pre-buried in a sleeper 18 by using a pre-tightening torque wrench, and the pre-tightening device can adjust the pre-tightening force according to the rigidity requirement of a fastener.
One end of the T-bolt 8 is inserted into the slot 322 of the second protrusion 32 fixed on the upper backing plate 3, the insert block 4 is inserted between the first protrusion 31 and the second protrusion 32 of the upper backing plate 3, and the first gauge block 14 and the second gauge block 15 are respectively arranged between the rail bottom and the second protrusion 32 on both sides of the rail 9. Then, the ω spring bar 7 is fixed to the first projection 31, the second projection 32, and the first and second gauge blocks of the upper iron shim plate 3 by using a flat pad, a spring pad, and a nut, wherein the first and second gauge blocks are respectively disposed between the rail bottom of the two sides of the rail 9 and the second projection 32, and are fixed to the rail bottom of the rail 9. As shown in the figure, the insertion block 4 avoids the problem that the first projection 31 needs to be grooved to provide an operating space for placing the T-bolt 8, and thus avoids the problem that the contacted polymer material adjusting plate 5 is stressed and crushed due to the grooving.
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 to the ordinary skilled in the art, according to the present invention, the model, formula, parameter of various deformation are designed without the need of creative labor. Variations, modifications, substitutions and alterations of the embodiments may be made without departing from the principles and spirit of the invention, which is to be understood as falling within the scope of the invention.
Claims (9)
1. A vibration-damping fastener, comprising: the damping device comprises a lower base plate (2), an upper base plate (3), a first adjusting plate (5), a second adjusting plate (6), omega elastic strips (7), T-shaped bolts (8) and double-side frustum damping pads (17);
wherein the lower backing plate (2) comprises side plates (21) which are formed at two ends and protrude upwards, grooves (22) which are formed on the upper surfaces of the side plates close to the two ends and a through hole (23) which is formed in the middle;
the upper backing plate (3) is arranged on the lower backing plate (2) and comprises first convex blocks (31) which are formed at two ends and protrude upwards, second convex blocks (32) which are formed on the upper surface and correspond to the first convex blocks respectively and are spaced at a certain distance, and third convex blocks (33) formed by downward extension of the first convex blocks (31), wherein clamping grooves (322) are formed in the middles of the second convex blocks (32) and used for fixing one end of a T-shaped bolt (8);
the upper surface and the lower surface of the double-side frustum damping pad (17) are provided with a plurality of frustums, the integral thickness of the frustum damping pad is slightly larger than the depth of the through hole (23), and the shape of the double-side frustum damping pad (17) is consistent with that of the through hole (23) of the lower backing plate (2) and is arranged in the through hole (23);
the first adjusting plate (5) is arranged between the first lug (31) and the side plate (21), the second adjusting plate (6) is arranged on the inner side of the third lug (33), and the lower end of the first adjusting plate (5) is arranged in the groove (22) together with the third lug (33) and the second adjusting plate (6);
the omega elastic strip (7) is fixed by a T-shaped bolt (8) and is arranged on the first lug (31) and the second lug (32).
2. The shock absorbing clamp of claim 1 further comprising a first gauge block (14) and a second gauge block (15) disposed between the rail foot and the second projection (32) on either side of the rail (9), whereby the omega spring (7) is also disposed on the first gauge block (14) and the second gauge block (15).
3. The vibration damping fastener according to claim 1, further comprising an upper pad insert (4) disposed between the first projection (31) and the third projection (33), whereby the ω -spring bar (7) is further disposed on the upper pad insert (4).
4. The vibration damping fastener according to claim 1, wherein the second protrusion (32) has a stopper (321) formed on an upper surface thereof for limiting the ω -spring (7).
5. The vibration-damping fastener according to claim 1, further comprising an under-rail rubber pad (16) provided between the under-rail surface of the steel rail (9) and the upper surface of the upper pad (3).
6. The vibration-damping fastener according to claim 1, further comprising a lower rubber pad (1) disposed between the lower pad (2) and the sleeper (18), and having a through-hole formed in the middle portion thereof corresponding to the through-hole (23).
7. A vibration damping fastener according to claim 1, further comprising a pretensioning means, wherein screw holes are formed in the lower backing plate (2) and the upper backing plate (3), and the pretensioning means is inserted into the screw holes, whereby the pretensioning force between the lower backing plate (2) and the upper backing plate (3) can be adjusted by the pretensioning means.
8. The vibration-damping fastener according to claim 7, characterized in that the pretensioning device comprises a pretensioning spring-carrying seat (11), a pretensioning spring (12) and a double-ended helical spike (13).
9. The vibration-damping fastener according to claim 1, wherein a side wall groove (24) is formed on a side wall of the through-hole (23), and a side wall protrusion (171) is formed on a side surface of the double-sided frustum vibration-damping pad (17), the side wall protrusion (171) being fitted into the side wall groove (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220012179.2U CN217629179U (en) | 2022-01-05 | 2022-01-05 | Vibration damping fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220012179.2U CN217629179U (en) | 2022-01-05 | 2022-01-05 | Vibration damping fastener |
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| Publication Number | Publication Date |
|---|---|
| CN217629179U true CN217629179U (en) | 2022-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220012179.2U Active CN217629179U (en) | 2022-01-05 | 2022-01-05 | Vibration damping fastener |
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| CN (1) | CN217629179U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2022
- 2022-01-05 CN CN202220012179.2U patent/CN217629179U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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