CN111926629A - Multistage steel rail particle shock absorber - Google Patents
Multistage steel rail particle shock absorber Download PDFInfo
- Publication number
- CN111926629A CN111926629A CN202010706626.XA CN202010706626A CN111926629A CN 111926629 A CN111926629 A CN 111926629A CN 202010706626 A CN202010706626 A CN 202010706626A CN 111926629 A CN111926629 A CN 111926629A
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- Prior art keywords
- rail
- particle
- shell
- vertical support
- vibration
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- 239000002245 particle Substances 0.000 title claims abstract description 48
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 22
- 230000035939 shock Effects 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 16
- 239000010959 steel Substances 0.000 title claims abstract description 16
- 230000002146 bilateral effect Effects 0.000 claims abstract description 4
- 238000005192 partition Methods 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 230000010485 coping Effects 0.000 abstract 1
- 238000013016 damping Methods 0.000 description 6
- 239000008187 granular material Substances 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000005284 excitation Effects 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000007769 metal material Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a multistage steel rail particle shock absorber which comprises a buckle, a clamping space and particle shock absorbers, wherein the buckle coated on the bottom surface of a rail is of a U-shaped structure and is matched with bilateral cambered surfaces of the rail to form the clamping space, the particle shock absorbers are arranged in the clamping space and comprise a shell, a vertical support, a horizontal support and particle mass blocks, the shell is respectively attached to the bilateral cambered surfaces of the rail and the inner side walls of the buckle, the vertical support is vertically arranged in the shell, the horizontal support is horizontally arranged on the vertical support, and the particle mass blocks are symmetrically arranged at two ends of the horizontal support. By the mode, the invention provides the multistage steel rail particle vibration absorber, which is used for effectively coping with various working conditions and effectively reducing vibration and noise of a rail system by adopting the vibration absorber with the multistage frequency function aiming at the vibration and the noise of the wide frequency band and the multi-frequency band of the rail system caused by different working conditions of a vehicle.
Description
Technical Field
The invention relates to the field of dampers, in particular to a multistage steel rail particle damper.
Background
The vibration noise problem brought by rail traffic is increasingly prominent. Vibration noise of rail transit affects not only the living and working environment around but also the effective operation of the railway system. In order to meet the requirements of environmental standards, the trains may be reduced in running speed and shift number, thereby reducing the economic benefit of rail transportation.
One of the main sources of vibration noise in rail transit is vibration and noise generated when a rail and a wheel are in contact, and the influence is not limited to the vicinity of the rail, but also can be transmitted to surrounding buildings through a road bed or transmitted into a train car through the wheel, causing vibration of a car body and further generating noise.
Disclosure of Invention
The invention mainly solves the technical problem of providing a multistage steel rail particle shock absorber which has the following beneficial effects:
the mass system 1 is directly connected on the horizontal bracket 23, does not need initial starting force in the working state, can react in time when in micro vibration and has good sensitivity;
2, the relative position of the particle mass block 24 on the horizontal bracket 23 can be adjusted to continuously adjust the product rigidity and frequency, so that the frequency can be continuously adjusted, and the adjusting mode is convenient, simple and effective;
3, the size of the particle mass block 24 is not changed when the frequency is adjusted, so that the vibration reduction effect is not reduced;
4, the particle group in the particle mass block part rubs and collides with the inside of the shell, the partition plates and the particle group, so that a large amount of vibration energy is consumed, and the structural response caused by external excitation can be effectively reduced;
5 the inside damping system that contains a plurality of different frequencies of every shock absorber effectively deals with the load operating mode of multiple frequency, effectively reduces track system vibration and noise.
In order to solve the technical problems, the invention adopts a technical scheme that: the multistage steel rail particle shock absorber comprises a buckle, a clamping space and particle shock absorbers, wherein the buckle coated on the bottom surface of a rail is of a U-shaped structure and is matched with bilateral cambered surfaces of the rail to form the clamping space; the particle mass block is composed of a shell, a partition board and a particle group buffer material, the particle group is composed of one or more steel balls, lead balls, aluminum balls and plastic balls with different diameters, and the particle group is arranged and limited by the partition board and is accommodated in the shell.
In a preferred embodiment of the present invention, the shell surface of the housing has a round structure.
In a preferred embodiment of the invention, the clips are arranged at equal intervals along the rail.
In a preferred embodiment of the invention, the vertical support is in an inverted T-shaped structure, and the lower half part of the vertical support is arc-shaped and clings to the rail.
In a preferred embodiment of the invention, the horizontal bracket is fixed within a height position range of 30% -70% of the vertical bracket.
The invention has the beneficial effects that: the multistage steel rail particle shock absorber provided by the invention has the following beneficial effects:
the mass system 1 is directly connected on the horizontal bracket 23, does not need initial starting force in the working state, can react in time when in micro vibration and has good sensitivity;
2, the relative position of the particle mass block 24 on the horizontal bracket 23 can be adjusted to continuously adjust the product rigidity and frequency, so that the frequency can be continuously adjusted, and the adjusting mode is convenient, simple and effective;
3, the size of the particle mass block 24 is not changed when the frequency is adjusted, so that the vibration reduction effect is not reduced;
4, the particle group in the particle mass block part rubs and collides with the inside of the shell, the partition plates and the particle group, so that a large amount of vibration energy is consumed, and the structural response caused by external excitation can be effectively reduced;
5 the inside damping system that contains a plurality of different frequencies of every shock absorber effectively deals with the load operating mode of multiple frequency, effectively reduces track system vibration and noise.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a side view of a preferred embodiment of a multiple stage particulate steel rail damper of the present invention;
FIG. 2 is a cross-sectional view of a preferred embodiment of a multi-step particulate steel rail damper of the present invention;
FIG. 3 is a top view of a preferred embodiment of a multiple step rail particle damper of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The most effective method for controlling vibration noise is to take measures from a vibration source or block the propagation path of vibration noise, so that, as shown in fig. 1 to 3, the dynamic vibration absorber is arranged on the track in the embodiment, and the track vibration is reduced from the source. Specifically, the method comprises the following steps: the utility model provides a multistage rail granule shock absorber, includes buckle 1, the solid space of card, granule bump leveller 2, the cladding is U type structure and cooperatees with the two side cambered surfaces of rail 1000 at buckle 1 of rail 1000 bottom surface and forms the solid space of card, be provided with granule bump leveller 2 in the solid space of card, granule bump leveller 2 includes shell 21, vertical support 22, horizontal stand 23 and granule quality piece 24, shell 21 laminates with the two side cambered surfaces of rail 1000, the inboard wall of buckle 1 respectively, the vertical support 22 that is provided with in the shell 21, vertical support 22 is improved level and is provided with horizontal stand 23, granule quality piece 24 is installed to the both ends symmetry of horizontal stand 23. The vertical support 22 and the horizontal support 23 are generally metal materials (steel, copper, aluminum and the like) and composite materials (carbon fiber rods, glass fiber rods and the like), the vertical support 22 is mainly used for bearing, and the horizontal support 23 is used as a rigidity system of the shock absorber; the particle mass block is composed of a shell, a partition board and a particle group buffer material, the particle group is composed of one or more steel balls, lead balls, aluminum balls and plastic balls with different diameters, and the particle group is arranged and limited by the partition board and is accommodated in the shell.
The fastener 1 is generally made of metal material and is used for fixing the damper on a specific position of the rail.
Wherein, the shell surface of the shell 21 is a round angle structure. The housing 21 is generally made of rubber or polymer material, and is mainly used as a peripheral framework and peripheral protection;
further, the buckles 1 are arranged at equal intervals along the rail 1000.
Further, the vertical support 22 is an inverted T-shaped structure, and the lower half portion of the vertical support 22 is arc-shaped and clings to the rail 1000.
Further, the horizontal support 23 is fixed within the range of 30% -70% of the height position of the vertical support 22.
The working principle on which the above-described embodiment is based is:
a damper is added to the track structure to provide a force having a frequency substantially equal to and opposite to the direction of movement of the structure when the track structure is subjected to an external dynamic force (e.g., a vehicle load) to partially cancel the structural response caused by the external excitation. For optimal damping, it is often necessary to adjust the frequency of the damping device to be close to the frequency at which damping is desired.
Wherein, the frequency calculation principle of the shock absorber is as follows:
and (3) frequency calculation: the formula for the calculation of the damper frequency, based on structural dynamics, is as follows:
Because the running vehicle can generate a plurality of different working conditions, the vibration and the noise of the track system have the characteristics of wide frequency band and multi-frequency band. The conventional single-frequency dynamic vibration absorber has limited effect, so that the vibration absorber with multi-order frequency function can effectively cope with various working conditions, and effectively reduce vibration and noise of a track system.
In summary, the invention provides a multistage steel rail particle damper, which has the following beneficial effects:
the mass system 1 is directly connected on the horizontal bracket 23, does not need initial starting force in the working state, can react in time when in micro vibration and has good sensitivity;
2, the relative position of the particle mass block 24 on the horizontal bracket 23 can be adjusted to continuously adjust the product rigidity and frequency, so that the frequency can be continuously adjusted, and the adjusting mode is convenient, simple and effective;
3, the size of the particle mass block 24 is not changed when the frequency is adjusted, so that the vibration reduction effect is not reduced;
4, the particle group in the particle mass block part rubs and collides with the inside of the shell, the partition plates and the particle group, so that a large amount of vibration energy is consumed, and the structural response caused by external excitation can be effectively reduced;
5 the inside damping system that contains a plurality of different frequencies of every shock absorber effectively deals with the load operating mode of multiple frequency, effectively reduces track system vibration and noise.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. A multistage steel rail particle shock absorber is characterized by comprising a buckle, a clamping space and particle shock absorbers, wherein the buckle coated on the bottom surface of a rail is of a U-shaped structure and is matched with bilateral cambered surfaces of the rail to form the clamping space; the particle mass block is composed of a shell, a partition board and a particle group buffer material, the particle group is composed of one or more steel balls, lead balls, aluminum balls and plastic balls with different diameters, and the particle group is arranged and limited by the partition board and is accommodated in the shell.
2. The multi-step rail particle damper of claim 1, wherein the shell surface of the outer shell is a rounded structure.
3. The multi-step rail particle damper of claim 1, wherein the clips are equally spaced along the rail.
4. The multi-step rail particle damper of claim 1, wherein the vertical support is an inverted T-shaped structure, and the lower half of the vertical support is curved and is attached to the rail.
5. The multi-stage rail particle damper according to claim 1, wherein the horizontal support is fixed within a range of 30% to 70% of a height position of the vertical support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010706626.XA CN111926629A (en) | 2020-07-21 | 2020-07-21 | Multistage steel rail particle shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010706626.XA CN111926629A (en) | 2020-07-21 | 2020-07-21 | Multistage steel rail particle shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111926629A true CN111926629A (en) | 2020-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010706626.XA Pending CN111926629A (en) | 2020-07-21 | 2020-07-21 | Multistage steel rail particle shock absorber |
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| Country | Link |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105908581A (en) * | 2016-04-21 | 2016-08-31 | 同济大学 | Composite particle damper used for reducing steel rail vibration noise |
| US20160298300A1 (en) * | 2013-07-10 | 2016-10-13 | Qingdao Create Environment Control Technology Co., Ltd. | Rail vibration absorber |
| CN107254814A (en) * | 2017-03-14 | 2017-10-17 | 上海工程技术大学 | A kind of multistage shearing shaped steel rail dynamic damping bump leveller |
| CN208717666U (en) * | 2018-08-13 | 2019-04-09 | 青岛科而泰环境控制技术有限公司 | Rail tunes vibration absorber |
| CN110409228A (en) * | 2018-04-28 | 2019-11-05 | 洛阳双瑞橡塑科技有限公司 | A kind of rail damper |
| CN212714305U (en) * | 2020-07-21 | 2021-03-16 | 苏州铁承轨道交通科技有限公司 | Multistage steel rail particle shock absorber |
-
2020
- 2020-07-21 CN CN202010706626.XA patent/CN111926629A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160298300A1 (en) * | 2013-07-10 | 2016-10-13 | Qingdao Create Environment Control Technology Co., Ltd. | Rail vibration absorber |
| CN105908581A (en) * | 2016-04-21 | 2016-08-31 | 同济大学 | Composite particle damper used for reducing steel rail vibration noise |
| CN107254814A (en) * | 2017-03-14 | 2017-10-17 | 上海工程技术大学 | A kind of multistage shearing shaped steel rail dynamic damping bump leveller |
| CN110409228A (en) * | 2018-04-28 | 2019-11-05 | 洛阳双瑞橡塑科技有限公司 | A kind of rail damper |
| CN208717666U (en) * | 2018-08-13 | 2019-04-09 | 青岛科而泰环境控制技术有限公司 | Rail tunes vibration absorber |
| CN212714305U (en) * | 2020-07-21 | 2021-03-16 | 苏州铁承轨道交通科技有限公司 | Multistage steel rail particle shock absorber |
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