CN208793915U - Compound vibro-damping mount - Google Patents
Compound vibro-damping mount Download PDFInfo
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- CN208793915U CN208793915U CN201821425737.8U CN201821425737U CN208793915U CN 208793915 U CN208793915 U CN 208793915U CN 201821425737 U CN201821425737 U CN 201821425737U CN 208793915 U CN208793915 U CN 208793915U
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Abstract
The utility model discloses a kind of compound vibro-damping mount, use two-stage vibration isolation structure technology, upper steel plate frame slot, upper damper including a vibration insulation structure, lower steel plate frame slot, the lower vibration isolator of two-stage vibration isolation structure, upper steel plate frame slot is in lower steel plate frame slot, upper damper is reliably mounted between upper steel plate frame slot, lower steel plate frame trough floor, and lower vibration isolator is between lower steel plate frame slot surrounding and terrace.Setting screw-thread steel forms upper rigid block after welding the foundation bolt casting concrete for installing equipment in upper steel plate frame slot, lower steel plate frame groove body shape is unsplit bed(-)plate, surrounding is periphery shape steel plate frame slot, forms lower rigid block in the shape steel plate frame slot of periphery after setting screw-thread steel casting concrete.Two-stage vibration isolation structure height, control resonance and equipment displacement are reduced, device structure vibration solid transmitting is effectively reduced.
Description
Technical field
The present invention relates to a kind of pair of vibration equipment noise controls to be transformed, the compound vibration isolation base for preventing vibration equipment solid from propagating
Seat.
Background technique
As the electromechanical equipment configured in building is increasing, the low frequency solid borne noise of vibration equipment is polluted to people's body
The influence of heart health it is verified that.So State Ministry of Environmental Protection is per every year by indoor low-frequency noise control technology since 2008
It is included in " the environmental protection technology catalogue that country encourages development ".Technical name: indoor low-frequency noise and solid sound pollution control
Equipment and integration control technology.Technology contents: the technology uses based on low-frequency noise and solid sound analysis identification technology
All kinds of vibrating isolation systems such as efficient low frequency vibration isolation device, vibration insulating foundation, control room noise.Vibration isolation efficiency is adopted in broadband > 95%
With integration control technology, indoor low-frequency noise (200Hz or less) and solid sound can be made to lower 10dB or more.The scope of application:
The low-frequency noise and solid sound pollution control of Civil Buildings in Cities of China and public building.
Its main circulation way of vibration equipment noise is the structural noise transmitted with low-frequency vibration by building structure.Subtract
The vibration transmitting of weak equipment is realized by the rigid connection eliminated between them.Solution to the problem is to set at present
The standby configuration between building structure forms isolation mount by rigid block and vibration isolator.Since equipment is in starting and closed stage,
A certain stage of the revolving speed in the change procedure of 0 ~ rated speed necessarily will appear damping spring vibration isolator intrinsic frequency and rotation
The consistent situation of equipment forcing frequency causes to generate covibration, vibration isolation failure.Equipment vibration isolation is required in certain occasion very high
In the case where, when a vibration isolation can not meet vibration isolation requirement, need using two-stage vibration isolation.The vibration of two-stage vibration isolation structure is delivered in
Further decay on the basis of the vibration transmitting of vibration insulation structure, to make transmitting than smaller and vibration isolating effect is more preferable.
The transport of vibration and the biquadratic of interfering frequency are inversely proportional, i.e., double-layer vibration isolating system has more preferably high-frequency vibration
Vibration isolating effect.Double-layer vibration isolating system tool is there are two intrinsic frequency, in the second intrinsic frequency with super band, double-layer vibration isolating system
The case where vibration transmissibility is reduced rapidly as frequency rises, and vibration isolating effect is better than level-one vibrating isolation system, still, in middle low frequency
Section, due to the presence of two intrinsic frequencies, vibration isolating effect is deteriorated, especially near the second intrinsic frequency.In addition, withm 1 Subtract
Few, the speed of high band transport reduction has increased trend, improves the high frequency isolation capacity of system；But intrinsic frequency
Also mobile to low frequency therewith, corresponding peak value also rises rapidly, deteriorates the middle low frequency vibration isolation ability of system, reduce vibration isolation
Efficiency.
If setting two-stage vibration isolation structure is to be superimposed first and second vibration insulation structure, it will generate vibration insulation structure total height and mention
Height, equipment center of gravity improve and influence the deficiency of operation stability.If will be produced using the inserted setting of first and second vibration insulation structure
Raw effective mounting table specification is insufficient, and the deficiency that adaptation range is narrow.
Summary of the invention
In order to overcome equipment setting two-stage vibration isolation structure that can generate the raising of equipment total height, the presence and equipment of covibration
Start the deficiency of displacement, the purpose of the present invention is to provide a kind of equipment two-stage vibration isolation structures, and total height is low, and it is existing to eliminate resonance
As, and the compound vibro-damping mount of equipment starting, closed stage displacement can be efficiently controlled.
The technical solution adopted by the present invention to solve the technical problems is: it is a kind of using two-stage vibration isolation structure technology it is compound every
Shake pedestal, upper steel plate frame slot, upper damper including a vibration insulation structure, the lower steel plate frame slot of two-stage vibration isolation structure, lower vibration isolation
Device, upper steel plate frame slot in the lower steel plate frame slot, upper damper be reliably mounted on upper steel plate frame slot, lower steel plate frame trough floor it
Between, lower vibration isolator is between lower steel plate frame slot surrounding and terrace.Setting screw-thread steel welds the ground of installation equipment in upper steel plate frame slot
Upper rigid block is formed after foot bolt casting concrete, lower steel plate frame groove body shape is unsplit bed(-)plate, and surrounding is periphery shape steel plate
Frame slot, the interior lower rigid block of formation after screw-thread steel casting concrete is set of periphery shape steel plate frame slot.
Steel plate frame slot is set, compound vibro-damping mount self weight is reduced, compound vibro-damping mount transport peace can be greatly reduced
This is dressed up, can further improve installation accuracy and vibration isolation efficiency.After compound vibro-damping mount is installed, poured in place concrete.
It is chamfered edge platform top is cube that the upper steel plate frame groove body shape, which is cube or lower part, and top steel plate is toward being folded outward
The angle 90o, cube are equipment mounting table.It is cube that it is above chamfered edge platform that upper steel plate frame groove body shape, which is following, in satisfaction
Under the premise of rigid block weight ratio, expand the effective area of equipment mounting table.To guarantee foundation bolt installation site
The cube height of structural strength, upper steel plate frame slot is greater than 30mm, to improve the upper rigid block rigidity of structure.
Periphery shape steel plate frame groove top portion's steel plate is toward the angle infolding 90o, and steel plate outer dog-ear in upper steel plate frame groove top portion is in week
In side shape steel plate frame groove top portion steel plate on dog-ear, between spacing be upper damper dead load compression deformation 150%.
The distance between described lower steel plate frame trough floor and terrace are the 150% of lower vibration isolator dead load compression deformation.
The upper damper is that intrinsic frequency is 6~8Hz, and the rubber of damping ratio > 0.07 shears damper；Under described
Vibration isolator is that intrinsic frequency is 2.5~4.5Hz, the adjustable damping spring vibration isolator of damping ratio > 0.02.The concrete is
C30 commerical ready-mixed concrete, upper rigid block, lower rigid block weight ratio be 1:1.8~2.5.C30 concrete is poured, is protected
The rigidity of structure of rigid block, lower rigid block on card improves the uniformity of vibration transmitting.
The upper damper, lower vibration isolator be it is multiple, along the setting substantially symmetrical about its central axis of compound vibro-damping mount, bear lotus
It is loaded in best load range.
The invention has the advantages that reducing two-stage vibration isolation structure height, control resonance and equipment offset phenomena are defined
The weight ratio of upper rigid block, lower rigid block is effectively reduced device structure vibration solid transmitting.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is that the present invention compound vibro-damping mount one embodiment faces sectional structural map.
Fig. 2 is the top view cross section structural map of Fig. 1.
Fig. 3 is the side elevational cross-section structural map of Fig. 1.
Fig. 4 is the side elevational cross-section structural map of second embodiment.
1. vibration insulation structures in figure, 11. upper steel plate frame slots, 12. mounting tables, 13. outer dog-ears, damper on 14., 2.
Two-stage vibration isolation structure, 21. lower steel plate frame slots, 22. bottom plates, 23. periphery shape steel plate frame slots, dog-ear in 24., 25. lower vibration isolators, 3.
Equipment, 31. foundation bolts, 32. concrete, 33. terraces.
Specific embodiment
In one embodiment shown in Fig. 1,2,3, compound vibro-damping mount includes the upper steel plate of a vibration insulation structure (1)
Frame slot (11), upper damper (14), lower steel plate frame slot (21), the lower vibration isolator (22) of two-stage vibration isolation structure (2), upper steel plate frame slot
(11) in lower steel plate frame slot (21), upper damper (12) is reliably mounted on upper steel plate frame slot (11) bottom, lower steel plate frame slot
(21) between bottom plate (22), lower vibration isolator (22) is between lower steel plate frame slot (21) surrounding and terrace (34).Upper steel plate frame slot
(11) foundation bolt (31) casting concrete (32) that setting spiral welds installation equipment (3) in forms rigid mass afterwards
Block, lower steel plate frame slot (21) bodily form are unsplit bed(-)plate (22), and surrounding is periphery shape steel plate frame slot (23), periphery shape steel plate frame slot
(23) setting spiral casting concrete (32) forms lower rigid block afterwards in.
Upper steel plate frame groove body (11) shape is cube, and cube is equipment mounting table (12), upper steel plate frame slot
(11) cube height is greater than 30mm, top steel plate dog-ear (13) outward, dog-ear angle 90o.
Steel plate dog-ear (24) inside, dog-ear angle 90o, upper steel plate frame slot at the top of the periphery shape steel plate frame slot (23)
(11) steel plate outer dog-ear (13) in top is at the top of the periphery shape steel plate frame slot (23) in steel plate on dog-ear (24), between spacing be upper
The 150% of damper (14) dead load compression deformation.
The distance between described lower steel plate frame slot (21) bottom plate (22) and terrace (33) are lower vibration isolator (25) dead load
The 150% of compression deformation.
The upper damper (14) is that intrinsic frequency is 6~8Hz, and the rubber of damping ratio > 0.07 shears damper；It is described
Lower vibration isolator (25) be intrinsic frequency be 2.5~4.5Hz, the adjustable damping spring vibration isolator of damping ratio > 0.02.Described
Concrete is C30 commerical ready-mixed concrete, upper rigid block, lower rigid block weight ratio be 1:1.8~2.5.
The upper damper (14), lower vibration isolator (22) be it is multiple, along the setting substantially symmetrical about its central axis of compound vibro-damping mount,
Its bearing load is in best load range.
In second embodiment shown in Fig. 4, it is cube that it is above chamfered edge platform that upper steel plate frame groove body (11) shape, which is following,
Body, cube are equipment mounting table (12).
Compound vibro-damping mount field installation process:
1 total load head according to equipment (3) unit containing medium selects compound vibro-damping mount model；
2 on terrace (33) pop-up device (3) axis in length and breadth, determine compound vibro-damping mount installation site according to axis；
3 are mounted on matched adjustable damping spring vibration isolator pedestal terrace (33), upper bolt be mounted on it is compound every
Shake the reserved bolt hole of pedestal；
Setting spiral welds in the foundation bolt (31) and upper steel plate frame slot (11) of 4 equipment (3) pedestal；Equipment (3)
The planar central of the center of gravity and upper steel plate frame slot (11) mounting table (12) of unit and each attachment is in same vertical line；
The length of 5 upper steel plate frame slot (11) mounting tables (12) should be not less than the length of equipment (3) unit common-base；
Width should be not less than the width of equipment (3) unit common-base；
Pacify after concrete initial set to upper steel plate frame slot (11), periphery shape steel plate frame slot (23) interior casting concrete at 6 scenes
Install standby (3) unit；
7 levels that compound vibro-damping mount adjustment pedestal plane is adjusted by damping due to rotation spring vibration-isolator lower nut are put down
Whole degree deviation and height.
Above-described embodiment is only used to further illustrate a kind of compound vibro-damping mount of the invention, but the invention is not limited to
Embodiment, any simple modification, equivalent change and modification to the above embodiments according to the technical essence of the invention,
It falls within the scope of protection of technical solution of the present invention.
Claims (7)
1. a kind of compound vibro-damping mount, upper steel plate frame slot, upper damper including a vibration insulation structure, under two-stage vibration isolation structure
Steel plate frame slot, lower vibration isolator, it is characterized in that: upper steel plate frame slot is in lower steel plate frame slot, upper damper is reliably mounted on steel
Between sheet frame slot, lower steel plate frame trough floor, lower vibration isolator is between lower steel plate frame slot surrounding and terrace, setting in upper steel plate frame slot
Upper rigid block is formed after the foundation bolt casting concrete of screw-thread steel welding installation equipment, lower steel plate frame groove body shape is whole
Bottom plate, surrounding are periphery shape steel plate frame slot, form lower rigid matter in the shape steel plate frame slot of periphery after setting screw-thread steel casting concrete
Gauge block.
2. a kind of compound vibro-damping mount according to claim 1, it is characterized in that: the upper steel plate frame groove body shape is cube
Or it is cube that lower part, which is chamfered edge platform top, top steel plate is equipment mounting table toward the angle 90o, top is folded outward.
3. a kind of compound vibro-damping mount according to claim 1, it is characterized in that: the periphery shape steel plate frame groove top portion steel plate
Toward the angle infolding 90o, the outer dog-ear of upper steel plate frame groove top portion steel plate in periphery shape steel plate frame groove top portion steel plate on dog-ear, between
Away from 150% for upper damper dead load compression deformation.
4. a kind of compound vibro-damping mount according to claim 1, it is characterized in that: the lower steel plate frame trough floor and terrace it
Between distance be lower vibration isolator dead load compression deformation 150%.
5. a kind of compound vibro-damping mount according to claim 1, it is characterized in that: it is 6 that the upper damper, which is intrinsic frequency,
The rubber of~8Hz, damping ratio > 0.07 shear damper；The lower vibration isolator is that intrinsic frequency is 2.5~4.5Hz, damping ratio
> 0.02 adjustable damping spring vibration isolator.
6. a kind of compound vibro-damping mount according to claim 1, it is characterized in that: the concrete is C30 commerical ready-mixed concrete,
Upper rigid block, lower rigid block weight ratio be 1:1.8~2.5.
7. a kind of compound vibro-damping mount according to claim 1, it is characterized in that: the upper damper, lower vibration isolator are
Multiple, along the setting substantially symmetrical about its central axis of compound vibro-damping mount, bearing load is in best load range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821425737.8U CN208793915U (en) | 2018-09-01 | 2018-09-01 | Compound vibro-damping mount |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821425737.8U CN208793915U (en) | 2018-09-01 | 2018-09-01 | Compound vibro-damping mount |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208793915U true CN208793915U (en) | 2019-04-26 |
Family
ID=66207942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821425737.8U Active CN208793915U (en) | 2018-09-01 | 2018-09-01 | Compound vibro-damping mount |
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| Country | Link |
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| CN (1) | CN208793915U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109990030A (en) * | 2019-05-06 | 2019-07-09 | 中建一局集团安装工程有限公司 | Flexible machine room damping system and foundation construction method thereof |
| CN110873260A (en) * | 2018-09-01 | 2020-03-10 | 厦门嘉达环保科技有限公司 | Composite vibration isolation base |
| CN115875541A (en) * | 2022-10-14 | 2023-03-31 | 翔嘉环境科技(江苏)有限公司 | Quick assembly type micro-shock-proof base |
-
2018
- 2018-09-01 CN CN201821425737.8U patent/CN208793915U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873260A (en) * | 2018-09-01 | 2020-03-10 | 厦门嘉达环保科技有限公司 | Composite vibration isolation base |
| CN109990030A (en) * | 2019-05-06 | 2019-07-09 | 中建一局集团安装工程有限公司 | Flexible machine room damping system and foundation construction method thereof |
| CN115875541A (en) * | 2022-10-14 | 2023-03-31 | 翔嘉环境科技(江苏)有限公司 | Quick assembly type micro-shock-proof base |
| CN115875541B (en) * | 2022-10-14 | 2024-05-14 | 翔嘉环境科技(江苏)有限公司 | Quick assembled type micro-shock-proof base |
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