CN206408548U - The reinforced high opening rate panel of railway metal sound barrier - Google Patents
The reinforced high opening rate panel of railway metal sound barrier Download PDFInfo
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- CN206408548U CN206408548U CN201621447815.5U CN201621447815U CN206408548U CN 206408548 U CN206408548 U CN 206408548U CN 201621447815 U CN201621447815 U CN 201621447815U CN 206408548 U CN206408548 U CN 206408548U
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- panel
- sound barrier
- opening rate
- aluminium alloy
- metal sound
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Abstract
The utility model is related to the reinforced high opening rate panel of railway metal sound barrier, the noise abatement technical field belonged in field of environment protection；Including aluminium alloy panel, I bar and punching；The I bar on the inside of the aluminium alloy panel with welding, and the punching is located on the aluminium alloy panel, and the punching is round rectangle hole.The utility model uses round rectangle hole, realizes the large opening rate of sound absorption panel, and comprehensive percent opening is up to 39%, than conventional circle punching panel increase 1.3dB additional noise reduction amounts；Carry out enhancing processing to aluminum deck with aluminium alloy I bar simultaneously, its equivalent thickness of aluminium sheet thick 1.5mm is up to 4.2mm, and panel rigidity is big, and resistance to weight bearing power is strong, and plate face is smooth, attractive in appearance.
Description
Technical field
The utility model is related to the reinforced high opening rate panel of railway metal sound barrier, belongs in field of environment protection
Noise abatement technical field.
Background technology
Current China high ferro metal sound barrier system is using circle punching panel, comprehensive percent opening about 29%, in reverberation chamber
When carrying out acoustic absorptivity detection to acoustic board, as long as percent opening is more than 20%, the influence to acoustic absorptivity is little, but percent opening increases
Greatly, acoustic absorptivity can be improved；Acoustic absorptivity change is little after being more than 20% due to percent opening, therefore existing metal sound barrier system
System uses the percent opening panel；But, in engineer applied, there will be more noise energies anti-by the non-aperture area of panel
Penetrate, reduce noise reduction；Therefore, increase percent opening can lift noise reduction.
Likewise, existing punching panel is single layer structure, stiffness by itself is small, and big, internal stress is deformed under load excitation
Also it is big；In fact, because structure snapping need to be elastically kept, when not by load, panel has occurred as soon as depressed phenomenon.
Therefore it provides a kind of aluminium alloy punching panel rigidity is big, resistance to weight bearing power is strong, plate face is smooth, attractive in appearance lifted
The reinforced high opening rate panel of sound barrier noise reduction just turns into the technical barrier that the technical field is badly in need of solving.
Utility model content
The purpose of this utility model is the reinforced high opening rate panel for providing a kind of railway metal sound barrier, by panel
Percent opening brings up to 39%, can lift sound barrier noise reduction, and sound barrier rigidity lifts 12 times.
To achieve the above object, the utility model takes following technical scheme：
The reinforced high opening rate panel of railway metal sound barrier, it is characterised in that：Including aluminium alloy panel, I bar and
Punching；The I bar on the inside of the aluminium alloy panel with welding, and the punching is located on the aluminium alloy panel, the punching
Hole uses round rectangle hole mode.
Preferably, the material of the I bar is aluminium alloy.
Preferably, round rectangle hole size is 6mm*16mm*r1.0 (or approx. dimension).
Preferably, the area's percent opening that rushes of the aluminium alloy panel is 48%.
Preferably, the synthesis percent opening of the aluminium alloy panel is up to 39%, and percent opening is promoted to 1.35 times of circular hole.
Preferably, using argon gas protection interruption welding between the I bar and aluminium alloy panel, welding is reliable, panel deformation
It is small.
Preferably, the aluminium alloy panel provides additional noise reduction 10*log101.35=1.3dB.
Preferably, the calculating cross sectional moment of inertia Ix=120000mm of the aluminium alloy panel single layer aluminium sheet4。
The utility model has the advantage of：
After the reinforced enhanced processing of high opening rate panel of railway metal sound barrier of the present utility model, aluminium alloy punching
Panel rigidity is big, and resistance to weight bearing power is strong, and plate face is smooth, attractive in appearance.
The utility model is described further below by the drawings and specific embodiments, but is not meant to this reality
With the limitation of novel protected scope.
Brief description of the drawings
Fig. 1 is the structural representation of the reinforced high opening rate panel of the utility model railway metal sound barrier；
Fig. 2 is the positive structure schematic of the reinforced high opening rate panel of the utility model railway metal sound barrier；
Fig. 3 is the structure schematic diagram of the reinforced high opening rate panel of the utility model railway metal sound barrier；
Fig. 4 is the plane of structure structural representation of the reinforced high opening rate panel of the utility model railway metal sound barrier；
Fig. 5 is the vertical face structural representation of the reinforced high opening rate panel of the utility model railway metal sound barrier；
Fig. 6 is the structural representation of the I bar of the reinforced high opening rate panel of the utility model railway metal sound barrier
Figure；
Fig. 7 is the structural representation of the reinforced high opening rate panel rectangular opening of the utility model railway metal sound barrier.
Main Reference Numerals explanation：
The round rectangle hole of 1 aluminium alloy panel, 2 I bar 3
Embodiment
As shown in figure 1, being the structural representation of the reinforced high opening rate panel of the utility model railway metal sound barrier；
As shown in Fig. 2 being the positive structure schematic of the reinforced high opening rate panel of the utility model railway metal sound barrier；As schemed
It is the structure schematic diagram of the reinforced high opening rate panel of the utility model railway metal sound barrier shown in 3；As shown in Figure 4
It is the plane of structure structural representation of the reinforced high opening rate panel of the utility model railway metal sound barrier；It is this as shown in Figure 5
The vertical face structural representation of the reinforced high opening rate panel of utility model railway metal sound barrier；It is this practicality as shown in Figure 6
The structural representation of the I bar of the reinforced high opening rate panel of novel railway metal sound barrier；It is this practicality as shown in Figure 7
The structural representation of the reinforced high opening rate panel radius rectangular opening of novel railway metal sound barrier.Wherein, 1 is aluminium alloy face
Plate, 2 be I bar, and 3 be round rectangle hole.
The inner side welding aluminum alloy I bar 2 of aluminium alloy panel 1 carries out enhancing processing, and punching is using round rectangle hole 3
Mode, constitutes primary structure of the present utility model.
The production procedure of the reinforced high opening rate panel of the utility model railway metal sound barrier is pressed below, states specific
Embodiment.
By the design sheet material of figure shearing aluminium alloy panel 1；By design specification, hole position distribution map, justified with special perforating die punching
Angle rectangular opening 3；By design flanging figure processing correspondence sideline；Semi-finished product through punching, flanging send cleaning workshop section carry out oil removing cleaning,
Drying；Placed on locating rack, fix above-mentioned semi-finished product, it is opening up；Using manipulator or manual fixture clamp I bar 2 to
Design attitude, is compacted to plate face smooth；Intermittent weld welding is carried out by design attitude using manipulator or manual welding machine, is preferably used
Argon gas protection weldering, laser welding, argon arc welding also can use, but quality is unstable and costly；All I bars 2 are completed in order
Positioning, welding；Sequent surface is sent to handle.
As described above, the reinforced high opening rate panel of railway metal sound barrier of the present utility model, due to improving out
Porosity, will have more noise energies to enter sound-absorbing material and be not reflected by, is calculated according to acoustics, it is possible to provide additional noise reduction 10*
log101.35=1.3dB；Using round rectangle hole punch pattern, the concentration of stress can be prevented, reliability is improved；Aluminium alloy punching
Welding aluminum alloy I bar carries out rigidity increase after enhancing processing on the inside of panel, and resistance to weight bearing power enhancing, plate face is smooth, attractive in appearance.
At present, China's high ferro metal sound barrier system using circle punching panel, circular punching due to the requirement of pitch of holes,
By taking the hole 9mm spacing of φ 6 (rushing area's percent opening 40%, comprehensive percent opening 29%) as an example, distance only has 3mm between hole wall, has reached knot
The limit of hole wall spacing ≮ 2 times thickness of slab on structure, then percent opening is lifted without space.
The utility model rushes mode using 6mm*16mm*r1.0 (or approx. dimension) round rectangles hole, due to improving out
Porosity, will have more noise energies to enter sound-absorbing material and be not reflected by, is calculated according to acoustics, the utility model can provide attached
Plus noise reduction 10*log101.35=1.3dB；The fillet processing of rectangular opening, can prevent the concentration of stress, improve reliability.
Existing punching panel is single layer structure, and stiffness by itself is small, is deformed greatly under load excitation, internal stress is also big；By
It need to be elastically kept in structure snapping, when not by load, panel has occurred as soon as depressed phenomenon；With 1.5mm thicknesss of slab, 200mm breadth is
Example, the calculating cross sectional moment of inertia Ix=10000mm of single layer aluminium sheet4。
Welding aluminum alloy I bar carries out the calculating section after enhancing processing on the inside of the utility model aluminium alloy punching panel
The moment of inertia is Ix=120000mm4, 12 times are improved than existing punching panel, can calculate and be equivalent to 4.2mm thickness aluminium sheets.
Claims (8)
1. a kind of reinforced high opening rate panel of railway metal sound barrier, it is characterised in that：Including aluminium alloy panel, I bar
And punching；The I bar on the inside of the aluminium alloy panel with welding, and the punching is located on the aluminium alloy panel, described
Punching is round rectangle hole.
2. the reinforced high opening rate panel of railway metal sound barrier according to claim 1, it is characterised in that：The work
The material of brief note is aluminium alloy.
3. the reinforced high opening rate panel of railway metal sound barrier according to claim 2, it is characterised in that：The circle
The size of angle rectangular opening is 6mm*16mm*r1.0.
4. the reinforced high opening rate panel of railway metal sound barrier according to claim 3, it is characterised in that：The aluminium
The area's percent opening that rushes of alloy panel is 48%.
5. the reinforced high opening rate panel of railway metal sound barrier according to claim 4, it is characterised in that：The aluminium
The synthesis percent opening of alloy panel is up to 39%.
6. the reinforced high opening rate panel of railway metal sound barrier according to claim 5, it is characterised in that：The work
Using argon gas protection interruption welding between brief note and punching aluminium alloy panel.
7. the reinforced high opening rate panel of railway metal sound barrier according to claim 6, it is characterised in that：The aluminium
Alloy panel provides additional noise reduction 10*log101.35=1.3dB.
8. the reinforced high opening rate panel of railway metal sound barrier according to claim 7, it is characterised in that：The aluminium
The calculating cross sectional moment of inertia Ix=120000mm of alloy panel single layer aluminium sheet4。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621447815.5U CN206408548U (en) | 2016-12-27 | 2016-12-27 | The reinforced high opening rate panel of railway metal sound barrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621447815.5U CN206408548U (en) | 2016-12-27 | 2016-12-27 | The reinforced high opening rate panel of railway metal sound barrier |
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| Publication Number | Publication Date |
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| CN206408548U true CN206408548U (en) | 2017-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621447815.5U Active CN206408548U (en) | 2016-12-27 | 2016-12-27 | The reinforced high opening rate panel of railway metal sound barrier |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106854856A (en) * | 2016-12-27 | 2017-06-16 | 中国铁道科学研究院节能环保劳卫研究所 | The reinforced high opening rate panel of railway metal sound barrier |
-
2016
- 2016-12-27 CN CN201621447815.5U patent/CN206408548U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106854856A (en) * | 2016-12-27 | 2017-06-16 | 中国铁道科学研究院节能环保劳卫研究所 | The reinforced high opening rate panel of railway metal sound barrier |
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