CN219824752U - Three-compound rail damper - Google Patents
Three-compound rail damper Download PDFInfo
- Publication number
- CN219824752U CN219824752U CN202321012850.4U CN202321012850U CN219824752U CN 219824752 U CN219824752 U CN 219824752U CN 202321012850 U CN202321012850 U CN 202321012850U CN 219824752 U CN219824752 U CN 219824752U
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- Prior art keywords
- damping rubber
- steel rail
- damper
- main body
- vibration
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- 238000013016 damping Methods 0.000 claims abstract description 76
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 48
- 239000010959 steel Substances 0.000 claims abstract description 48
- 238000009434 installation Methods 0.000 claims abstract description 14
- 230000009467 reduction Effects 0.000 claims description 12
- 239000002131 composite material Substances 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 12
- 239000006096 absorbing agent Substances 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001603 reducing effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Landscapes
- Vibration Prevention Devices (AREA)
Abstract
The utility model discloses a three-compound steel rail damper which comprises a damper main body, wherein the damper main body comprises a damping rubber shell, an installation cavity is arranged in the damping rubber shell, two damping rubber sleeves are symmetrically arranged in the installation cavity, and damping rubber blocks are arranged between the two damping rubber sleeves. According to the utility model, through the arrangement of the damping rubber shell in the damper main body and the matching of the damping rubber shell, the damping rubber sleeve and the damping rubber block are arranged in the damping rubber shell through the arranged mounting cavity, three different vibration frequencies can be formed in the damper main body, the purpose of widening the vibration frequency of the damper main body is achieved, the damper main body can receive a plurality of different vibration frequencies from a steel rail, and the damping effect on the steel rail is improved.
Description
Technical Field
The utility model relates to the technical field of steel rail dampers, in particular to a three-compound steel rail damper.
Background
The natural frequency of the steel rail damper is close to or coincides with the natural frequency of the vibration of the steel rail, and when the steel rail vibrates in a frequency band near the natural frequency, a 'mass-spring-damping' system formed by the steel rail damper and the steel rail form reverse resonance, so that the vibration of the steel rail is reduced, and the vibration energy of the steel rail is absorbed.
The dynamic vibration absorber structure steel rail damper is mainly adopted at present, and has the advantages that the dynamic vibration absorber structure steel rail damper can be designed aiming at specific steel rail natural frequency, the vibration absorbing effect is good, and the best condition is that the vibration of the steel rail at the natural frequency can be reduced to be close to zero. However, rail dampers employing dynamic absorber structures also have a fatal disadvantage: the vibration reduction frequency band of the steel rail damper is very narrow, the natural frequency of the vibration reduction frequency band is required to be near the natural frequency of the steel rail, if the natural frequency of the steel rail damper is far away from the natural frequency of the steel rail, an anti-resonance effect cannot be formed, and the vibration absorption effect exerted by the vibration reduction frequency band is very limited. Generally, when a specific structure of a steel rail damper product is fixed, its own modal characteristics (natural frequency and vibration mode) cannot be changed, and the dynamic vibration absorbing effect can be achieved only for a specific steel rail vibration frequency. In the practical application process, working condition parameters of different lines are different, such as fastener rigidity, fastener supporting distance, ballast bed rigidity, line curve radius, train running speed, train model and the like. The problem caused by different working condition parameters is that the natural frequencies of vibration of different steel rails are different. If the same product is used on different lines, the natural frequency of the steel rail damper is inconsistent with the natural frequency of the steel rail vibration, so that the vibration absorption effect of the steel rail damper is difficult to be exerted. In addition, as the operation period of the line increases, the working condition parameters of the rail change (for example, the elastic element in the fastener ages after long-time use and the rigidity of the elastic element changes) and the natural frequency of the rail changes, so that the rail damper with the matched original natural frequency is not applicable any more, and the vibration and noise reduction effects of the rail damper are reduced.
Therefore, the three-compound steel rail damper is provided to solve the problems that the practical steel rail damper has low adaptability to steel rail vibration reduction and low vibration reduction effect.
Disclosure of Invention
The utility model aims to provide a three-compound steel rail damper for solving the problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the three-composite steel rail damper comprises a damper main body, wherein the damper main body comprises a damping rubber shell, an installation cavity is formed in the damping rubber shell, two damping rubber sleeves are symmetrically installed in the installation cavity, and damping rubber blocks are arranged between the damping rubber sleeves.
Preferably, the inner ring of the vibration reduction rubber sleeve is fixedly connected with a filling rod, and the outer ring of the vibration reduction rubber sleeve is fixedly connected with a filling sleeve.
Preferably, the two sides of the damping rubber blocks, which are opposite to the two damping rubber pipe sleeves, are respectively provided with a clamping slot, and the inner wall of the clamping slot is matched with the outer wall of the filling sleeve.
Preferably, the outer wall of the vibration damping rubber shell is provided with two groups of clamping spring positioning parts which are used for positioning and fixing the damper main body, the clamping spring positioning parts are symmetrically arranged on the outer walls of two sides of the vibration damping rubber shell, and each group of clamping spring positioning parts are at least two and symmetrically arranged on the outer wall of one side of the vibration damping rubber shell.
Preferably, the corner of the bottom of one side of the damping rubber shell is provided with an arc chamfer for the lamination of the damping rubber shell and the waist of the steel rail.
The utility model has the technical effects and advantages that:
according to the utility model, through the arrangement of the damping rubber shell in the damper main body and the matching of the damping rubber shell, the damping rubber sleeve and the damping rubber block are arranged in the damping rubber shell through the arranged mounting cavity, so that three different vibration frequencies can be formed in the damper main body, the purpose of widening the vibration frequency of the damper main body is achieved, the damper main body can receive a plurality of different vibration frequencies from a steel rail, and the damping and noise reducing effects on the steel rail are improved.
Drawings
Fig. 1 is a schematic diagram of the front structure of the present utility model.
Fig. 2 is a side cross-sectional view of the present utility model.
FIG. 3 is a side cross-sectional view of a locating block of the present utility model.
In the figure: 1. a damper main body; 101. a vibration damping rubber housing; 102. installing a cavity; 103. filling a metal rod; 104. filling a metal sleeve; 105. damping rubber blocks; 1051. clamping and grooving; 106. a clamp spring positioning part; 107. arc chamfering; 108. a rubber sleeve.
Description of the embodiments
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a three-compound steel rail damper shown in fig. 1-3, which comprises a damper main body 1, wherein the damper main body 1 comprises a damping rubber shell 101, a mounting cavity 102 is arranged in the damping rubber shell 101, two damping rubber sleeves 108 are symmetrically arranged in the mounting cavity 102, damping rubber blocks 105 are arranged between the two damping rubber sleeves 108, the hardness of the damping rubber shell 101, the damping rubber sleeves 108 and the damping rubber blocks 105 is different, the three can have three different vibration frequencies, the purpose of widening the vibration frequency is achieved by the cooperation of the damping rubber shell 101, the damping rubber sleeves 108 and the damping rubber blocks 105, and different vibration frequencies from steel rails can be received, so that the adaptability of the damper main body 1 to steel rail vibration and the vibration and noise reduction effect of the damping are improved.
The installation process of the damper main body 1 on the steel rail comprises the following steps:
before installation, rust removal treatment is carried out on the rail web part of the steel rail, and floating dust is cleaned, so that the damper main body 1 is fully contacted with the rail web and is firmly installed;
the two groups of damper main bodies 1 are respectively clamped at rail web parts on two sides of a steel rail after rust removal pretreatment, so that the alignment of the two ends is ensured, and the damper main bodies 1 are lightly knocked from the outer side to the inner side by using rubber hammers, so that the damper main bodies 1 are tightly attached to the contact surface of the steel rail;
one end of the corresponding installation clamp spring penetrates through a gap between the lower part of the steel rail and the top end of the ballast bed, and the top of the installation clamp spring is opened (the opening angle is not more than 35 degrees, and the installation clamp spring is prevented from losing elasticity), so that the two end parts of the installation clamp spring are clamped at the clamp spring positioning parts 106 on the side wall of the vibration reduction rubber shell 101.
In the preferred embodiment, the inner ring of the damping rubber sleeve 108 is fixedly connected with the filling rod 103, the outer ring of the damping rubber sleeve 108 is fixedly connected with the filling sleeve 104, the filling rod 103 and the filling sleeve 104 are made of metal materials, the damping rubber sleeve 108 is formed by hot bonding and vulcanization between the filling rod 103 and the filling sleeve 104, the diameter of the outer ring of the filling sleeve 104 is 30mm, the diameter of the filling rod 103 is 20mm, and the filling rod 103 and the filling sleeve 104 are arranged, so that the damping effect of the damper main body 1 can be further enhanced, and the damping and noise reducing effects on steel rails are improved.
In the preferred embodiment, the two sides of the vibration damping rubber block 105 opposite to the two vibration damping rubber sleeves 108 are respectively provided with the clamping grooves 1051, the inner wall of the clamping grooves 1051 is matched with the outer wall of the filling sleeve 104, and the arrangement of the clamping grooves 1051 can enable the vibration damping rubber block 105 to be well matched with the outer walls of the two filling sleeves 104, so that the vibration damping rubber block 105 and the two filling sleeves 104 can be stably filled in the mounting cavity 102 of the vibration damping rubber shell 101, and the phenomenon that the using effect is affected due to shaking caused by overlarge interval between adjacent two vibration damping rubber blocks is avoided, thereby improving the overall stability of the damper main body 1.
The outer wall of damping rubber shell 101 is provided with the jump ring location portion 106 that is used for damping rubber shell 1 location fixed, jump ring location portion 106 is two sets of and symmetry sets up in damping rubber shell 101's both sides outer wall, and every jump ring location portion 106 of group is at least two and symmetry sets up in damping rubber shell 101's one side outer wall, through the setting of jump ring location portion 106, makes damping rubber body 1 install rail web position after, can carry out the centre gripping to damping rubber body 1 of rail both sides web department through dedicated installation jump ring fixed, keeps the stability of block between installation jump ring and the damping rubber body 1 outer wall, is difficult for taking place the position skew or rocks.
In the preferred embodiment, the corner of damping rubber shell 101 one side bottom is provided with arc chamfer 107 for damping rubber shell 101 and the laminating of rail web, and the setting of arc chamfer 107 makes the laminating with rail web department that the one side that damper main part 1 just to rail web can be fine, keeps the inseparable of laminating between the two to increase the firm of damper main part 1 installation at rail web department.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (5)
1. Three compound rail damper, including attenuator main part (1), its characterized in that: the damper body (1) comprises a damping rubber shell (101), an installation cavity (102) is formed in the damping rubber shell (101), two damping rubber sleeves (108) are symmetrically installed in the installation cavity (102), and damping rubber blocks (105) are arranged between the damping rubber sleeves (108).
2. The three-composite steel rail damper according to claim 1, wherein an inner ring of the vibration reduction rubber sleeve (108) is fixedly connected with a filling rod (103), and an outer ring of the vibration reduction rubber sleeve (108) is fixedly connected with a filling sleeve (104).
3. The three-composite steel rail damper according to claim 1, wherein two sides of the damping rubber blocks (105) opposite to the two damping rubber sleeves (108) are respectively provided with a clamping slot (1051), and the inner wall of the clamping slot (1051) is matched with the outer wall of the filling sleeve (104).
4. The three-composite steel rail damper according to claim 1, wherein the outer wall of the damping rubber housing (101) is provided with two groups of snap spring positioning portions (106) for positioning and fixing the damper main body (1), the two groups of the snap spring positioning portions (106) are symmetrically arranged on the outer walls of two sides of the damping rubber housing (101), and each group of the snap spring positioning portions (106) is at least two and symmetrically arranged on the outer wall of one side of the damping rubber housing (101).
5. The three-composite steel rail damper according to claim 1, wherein an arc chamfer (107) is arranged at the corner of the bottom of one side of the damping rubber shell (101) for attaching the damping rubber shell (101) to the waist of the steel rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321012850.4U CN219824752U (en) | 2023-04-28 | 2023-04-28 | Three-compound rail damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321012850.4U CN219824752U (en) | 2023-04-28 | 2023-04-28 | Three-compound rail damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219824752U true CN219824752U (en) | 2023-10-13 |
Family
ID=88283024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321012850.4U Active CN219824752U (en) | 2023-04-28 | 2023-04-28 | Three-compound rail damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219824752U (en) |
-
2023
- 2023-04-28 CN CN202321012850.4U patent/CN219824752U/en active Active
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| GR01 | Patent grant |