CN106812861B - Lossless vibration absorber and its construction technology for existing steel structure support precision equipment - Google Patents
Lossless vibration absorber and its construction technology for existing steel structure support precision equipment Download PDFInfo
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- CN106812861B CN106812861B CN201710139568.5A CN201710139568A CN106812861B CN 106812861 B CN106812861 B CN 106812861B CN 201710139568 A CN201710139568 A CN 201710139568A CN 106812861 B CN106812861 B CN 106812861B
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- overarm
- air spring
- precision equipment
- reduction device
- steel structure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
- F16F15/0232—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means with at least one gas spring
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- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a kind of lossless vibration absorber for existing steel structure support precision equipment, the steel structure support includes: foundation sole plate, braced frame girder, braced frame secondary beam and support frame trestle；Wherein, the lossless vibration absorber includes: air spring vibration reduction device, overarm, the overarm both ends are connect with the support frame trestle respectively, the lower plate of the air spring vibration reduction device is supported in the overarm, and gap of the upper plate of the air spring vibration reduction device across the braced frame girder and braced frame secondary beam is connect with foundation sole plate.The present invention is small to structural modification; avoid the loss that large-area construction generates inherent structure and top precision equipment; it realizes precision equipment and does not shut down lossless vibration damping; effective solution current vibration control equipment needs to shut down, removes device, destroys the problems such as structure in installation, replacement, maintenance; and construction method is simple, green non-pollution.
Description
Technical field
The present invention relates to the vibration control technology fields of steel structure support precision equipment, are specifically related to a kind of for existing
The lossless vibration absorber and its construction technology of steel structure support precision equipment.
Background technique
Lossless damping technology is not shut down for precision equipment currently, there is no in practical projects.Similar subtracts
Vibration technology is carried out under shutdown status, i.e., after equipment downtime, removes original treatment of the earth component, be replaced with new component
Or the vibration absorber that installation is new.It is summarized, these similar oscillation damping methods have the disadvantage that
(1) damage is generated to inherent structure.It in Practical Project, need to construct, remove former to structure after equipment downtime
There is structural elements that can cause to damage to a certain degree to structure itself, component or installation vibration damping dress are created at the position for removing component
It sets, main structure may be disturbed, influence structural natural frequencies.
(2) precision equipment is damaged.Removing original structure component, newly-built structure component and installation vibration absorber process
The vibration of middle generation can generate a degree of damage to precision equipment.
(3) environmental pollution.In practical projects, building waste can all be generated by being constructed to structural elements, and then be brought
Environmental pollution.
Economic loss.It needs to shut down precision equipment in work progress, until completing newly-built structure component and dampening apparatus
Installation, can just restart precision equipment, carry out production work.Within this time, since equipment not can be carried out normally
Production, it will cause certain economic loss.
Summary of the invention
In order to solve problem above, the present invention the following technical schemes are provided:
A kind of lossless vibration absorber for existing steel structure support precision equipment, steel structure support include: foundation sole plate,
Braced frame girder, braced frame secondary beam and support frame trestle；Wherein, the lossless vibration absorber includes: that air spring subtracts
Shake device, overarm, and the overarm both ends are connect with the support frame trestle respectively, the lower plate support of the air spring vibration reduction device
In the overarm, the upper plate of the air spring vibration reduction device is across the braced frame girder and braced frame secondary beam
Gap connect with foundation sole plate.
Further, the overarm is that sunk type is hung oneself from a beam.
Further, the overarm both ends pass through connector respectively and connect with the frame column.
Further, the upper and lower bottom plate of the air spring vibration reduction device by positioning bolt respectively with foundation sole plate, overarm
Connection.
A kind of construction technology making the above-mentioned lossless vibration absorber for existing steel structure support precision equipment, including it is as follows
Step:
(1) overarm positioning: according to the height of air spring vibration reduction device, determine overarm in the height of frame column；
(2) installation overarm: according to the height determined in step (1), overarm both ends are connect with the frame column respectively；
(3) installation of air spring vibration reduction device: the lower plate of air spring and the overarm are connected first, then passed through
The upper plate of the air spring is connect by the gap between the braced frame girder and braced frame secondary beam with foundation sole plate.
Further, in the step (2), before fixed overarm, horizontal leveling is carried out to the overarm using level ball.
Further, the overarm both ends pass through connector respectively and connect with the frame column.
Further, the connector is connect by way of bolt rivet or weld with the overarm, the frame column.
Further, the upper and lower bottom plate of the air spring vibration reduction device by positioning bolt respectively with foundation sole plate and hang
Beam connection.
The utility model has the advantages that the present invention connect this structure type with braced frame for precision equipment foundation sole plate, by
Frame intercolumniation adds overarm, and the method for air spring vibration reduction device is arranged between foundation sole plate and overarm, small to structural modification,
The loss that large-area construction generates inherent structure and top precision equipment is avoided, precision equipment is realized and does not shut down lossless subtract
Vibration, effective solution current vibration control equipment need to shut down, remove device, destroy structure etc. in installation, replacement, maintenance
Problem, and construction method is simple, green non-pollution.
Detailed description of the invention
Fig. 1 is the apparatus structure schematic diagram that steel structure supports precision equipment using conventional method progress vibration control；
Fig. 2 is a kind of schematic diagram of lossless vibration absorber that precision equipment is supported for existing steel structure provided by the invention.
Specific embodiment
Below with reference to embodiment, the present invention will be further described, but the present invention is not limited to following embodiments.
Fig. 1 is that steel structure supports precision equipment to utilize conventional method, i.e., the apparatus structure of vibration control is carried out by gasket
Schematic diagram, as shown in Figure 1, the precision equipment 01 is supported by steel construction workbench, the steel construction workbench includes: frame
It sets a roof beam in place, more frame columns 06 of its apical support Vierendeel girder, the foundation sole plate 02 being arranged in above Vierendeel girder and setting are in frame
Gasket 03 between beam and foundation sole plate 02；Specifically, in a specific embodiment, the Vierendeel girder includes main beam in frame
04 and frame secondary beam 05,04 both ends of main beam in frame connect respectively with a frame column 06, the both ends of frame secondary beam 05 difference
Connect with main beam in frame 04.
In above-mentioned vibration control apparatus, main beam in frame 04, frame secondary beam 05 form braced frame with frame column 06 and are used for
Precision equipment 01 is supported, gasket 03 is used for the basic vibration damping of precision equipment.But since the setting of gasket 03 is in braced frame and basis
Between platen 02, then Linan of meeting needs to shut down when filling, replace, repairing, removes the problems such as device, destruction structure.
Referring to Fig. 2, the present invention provides a kind of lossless vibration absorber for existing steel structure support precision equipment, the steel
Structure support includes: foundation sole plate 02, braced frame girder 04, braced frame secondary beam 05 and support frame trestle 06；Wherein, described
Lossless vibration absorber include: air spring vibration reduction device 07, overarm 08,08 both ends of the overarm respectively with the support frame trestle 06
Connection, the lower plate of the air spring vibration reduction device 07 be supported on it is described overarm 08 on, the air spring vibration reduction device 07 it is upper
Gap of the bottom plate across the braced frame girder 04 and braced frame secondary beam 05 is connect with foundation sole plate 02.
Wherein, the major parameter of air spring vibration reduction device 07 can be determined according to the characteristic of precision equipment, meet mounting height
Requirement, not will increase biggish space；In a kind of specific embodiment provided by the invention, overarm 08 uses i shaped steel
What beam, model and type those skilled in the art can be subjected to according to the span and braced frame girder 04 of i-shape steel beam
Load determines.
Above-mentioned lossless vibration absorber utilizes excellent performance of the air spring vibration reduction device 07 in vibration control, can be with flying colors
Weaken the influence of low frequency, micro breadth oscillation to precision equipment, requirement when reaching precision equipment operation to vibration environment；Pass through simultaneously
It installs the installation space that overarm 08 increases air spring vibration reduction device 07 additional between support frame trestle 06, facilitates air spring vibration reduction
The installation of device 07, while structure entirety decentralization can be made using overarm 08, be conducive to the vibration damping of structure.
Preferably, the overarm 08 is hung oneself from a beam using sunk type, and sunk type overarm not only meets air spring vibration reduction device peace
The requirement of height is filled, but also makes the link position of overarm both ends and frame column closer to frame column and Vierendeel girder as far as possible
Node, improve the anti-side rigidity of structure, increase the stability of structure.
Further, 08 both ends of the overarm pass through connector 09 respectively and connect with the support frame trestle 06.Wherein, even
General steel plate can be used in the material of fitting 09, and the connector 09 can pass through spiral shell with the overarm 08, the support frame trestle 06
The mode of bolt rivet or weld is attached, to guarantee that secured connection is realized in overarm 08 and support frame trestle 06.
Further, the upper and lower bottom plate of the air spring vibration reduction device 07 by positioning bolt respectively with foundation sole plate 02,
08 connection of overarm, the stretching resistance and shearing resistance that the quantity of positioning bolt and diameter those of ordinary skill in the art can be as needed are determined
It is fixed, to guarantee that air spring vibration reduction device 07 is realized and securely connect with foundation sole plate 02, overarm 08.
The present invention provides a kind of constructions for making the above-mentioned lossless vibration absorber for existing steel structure support precision equipment
Technique includes the following steps:
(1) overarm positioning: according to the height of air spring vibration reduction device 07, determine overarm 08 in the installation of support frame trestle 06
Highly；
(2) installation overarm: according to the overarm mounting height determined in step (1), by 08 both ends of prefabricated overarm respectively with one
The connection of support frame trestle 06 described in root, it is preferable that the overarm both ends can pass through connector 09 and the support frame trestle respectively
06 connection, the connector 09 can be connected with the overarm 08, the support frame trestle 06 by way of bolt rivet or weld
It connects；Wherein, before the fixed overarm, level ball can be used to 08 carry out level leveling of the overarm；
(3) installation of air spring vibration reduction device: the lower plate of air spring is connect with the overarm 08 first, is then worn
The gap between the braced frame girder 04 and braced frame secondary beam 05 is crossed by the upper plate of the air spring and basic platform
Plate 02 connect, wherein the upper and lower bottom plate of the air spring vibration reduction device 07 can by positioning bolt respectively with foundation sole plate 02 and
08 connection of overarm；In this step, using the working depth adjustability of air spring vibration reduction device 07, base can be completed from lower part
Plinth platen 02 is docked with air spring vibration reduction device 07, will not run have an impact to precision equipment during the installation process, can be real
It does not shut down the installation that precision equipment carries out vibration control equipment in the case where not shutting down nondestructive state now, can be avoided since production line stops
It is lost caused by work.
The above method can make overarm 08 outside workshop first, then it is linked together with braced frame, finally exist
Air spring vibration reduction device 07 is installed between overarm 08 and foundation sole plate 02.This construction is whole far from clean room, will not be to clean
The environment of net workshop generates pollution, avoids economic loss caused by pollution processing.And constructing operation is simple, is only additionally arranged outstanding
Beam 08 and air spring vibration reduction device 07, it is small to original structure change, it avoids large-area construction and inherent structure and top precision is set
The standby loss generated, and effective solution current vibration control equipment is needed to shut down, is removed in installation, replacement, maintenance
Device destroys the problems such as structure.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand the device of the invention and its core concept；At the same time, for those skilled in the art, foundation
Thought of the invention, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (9)
1. a kind of lossless vibration absorber for existing steel structure support precision equipment, the steel structure support includes: foundation sole plate, branch
Support main beam in frame, braced frame secondary beam and support frame trestle；Wherein, the lossless vibration absorber includes: air spring vibration reduction
Device, overarm, the overarm both ends are connect with the support frame trestle respectively, and the lower plate of the air spring vibration reduction device is supported on
In the overarm, the upper plate of the air spring vibration reduction device is across the braced frame girder and braced frame secondary beam
Gap is connect with foundation sole plate.
2. the lossless vibration absorber for steel structure support precision equipment as described in claim 1, wherein under the overarm is
Heavy formula overarm.
3. the lossless vibration absorber for steel structure support precision equipment as described in claim 1, wherein the overarm both ends
It is connect respectively by connector with the frame column.
4. the lossless vibration absorber for steel structure support precision equipment as described in claim 1, wherein the air spring
The upper and lower bottom plate of damper is connected with foundation sole plate, overarm respectively by positioning bolt.
5. the construction work of the lossless vibration absorber for existing steel structure support precision equipment as described in claim 1-4 is any
Skill includes the following steps:
(1) overarm positioning: according to the height of air spring vibration reduction device, determine overarm in the height of frame column；
(2) installation overarm: according to the height determined in step (1), overarm both ends are connect with the frame column respectively；
(3) installation of air spring vibration reduction device: first connecting the lower plate of air spring and the overarm, then passes through described
The upper plate of the air spring is connect by the gap between braced frame girder and braced frame secondary beam with foundation sole plate.
6. construction technology as claimed in claim 5, wherein in the step (2), before fixed overarm, using level ball pair
The overarm carries out horizontal leveling.
7. construction technology as claimed in claim 5, wherein the overarm both ends pass through connector respectively and the frame column connects
It connects.
8. construction technology as claimed in claim 7, wherein the connector and the overarm, the frame column pass through bolt
The mode of rivet or weld connects.
9. construction technology as claimed in claim 5, wherein the upper and lower bottom plate of the air spring vibration reduction device passes through positioning spiral shell
Bolt is connected with foundation sole plate and overarm respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710139568.5A CN106812861B (en) | 2017-03-10 | 2017-03-10 | Lossless vibration absorber and its construction technology for existing steel structure support precision equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710139568.5A CN106812861B (en) | 2017-03-10 | 2017-03-10 | Lossless vibration absorber and its construction technology for existing steel structure support precision equipment |
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| Publication Number | Publication Date |
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| CN106812861A CN106812861A (en) | 2017-06-09 |
| CN106812861B true CN106812861B (en) | 2019-01-18 |
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| CN107591999A (en) * | 2017-11-03 | 2018-01-16 | 中国电力工程顾问集团西南电力设计院有限公司 | ± 800kV current conversion station DC fields low-voltage equipment mounting structures |
| CN111156285B (en) * | 2019-12-13 | 2022-02-22 | 中国中元国际工程有限公司 | Open type sinking air floating platform raised floor overhanging vibration reduction system |
| CN114809068B (en) * | 2022-03-18 | 2024-03-12 | 国机集团科学技术研究院有限公司 | Dust-free zero-damage replacement transformation method for damping base of power equipment based on equivalent carbon emission measurement |
| CN115076288A (en) * | 2022-06-15 | 2022-09-20 | 国机集团科学技术研究院有限公司 | Cradle type damping-adjustable tower secondary radar system operation vibration control technology |
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| KR20090033669A (en) * | 2007-10-01 | 2009-04-06 | 손기택 | Bridge for absorbing vibration |
| CN100516586C (en) * | 2007-11-15 | 2009-07-22 | 郑国尧 | Installation method for removing vibration and noise of mechanical equipment |
| JP2009197426A (en) * | 2008-02-20 | 2009-09-03 | Kumagai Gumi Co Ltd | Floor structure of clean room |
| CN103603915A (en) * | 2013-11-04 | 2014-02-26 | 中科华核电技术研究院有限公司北京分公司 | Damping device for transport of equipment sensitive to vibration |
| CN105970750B (en) * | 2016-05-09 | 2017-12-22 | 广东工业大学 | Assembled city vibration isolation roadnet and its installation construction |
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Effective date of registration: 20210402 Address after: 100080 Beijing city Haidian District Danleng Street No. 3 Patentee after: SINOMACH SCIENCE AND TECHNOLOGY INSTITUTE Co.,Ltd. Address before: 100080 Guoji building, No.3 Danling street, Haidian District, Beijing Patentee before: CHINA NATIONAL MACHINERY INDUSTRY Corp. |
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