CN206234313U - A kind of Combined type vibration isolating device for transformer - Google Patents
A kind of Combined type vibration isolating device for transformer Download PDFInfo
- Publication number
- CN206234313U CN206234313U CN201621281095.XU CN201621281095U CN206234313U CN 206234313 U CN206234313 U CN 206234313U CN 201621281095 U CN201621281095 U CN 201621281095U CN 206234313 U CN206234313 U CN 206234313U
- Authority
- CN
- China
- Prior art keywords
- spring
- circular bosses
- vibration
- rubber
- transformer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Vibration Prevention Devices (AREA)
Abstract
The utility model is related to a kind of Combined type vibration isolating device for transformer, including spring vibration-isolator and rubber shock absorber, the spring vibration-isolator is located at the upper strata of rubber shock absorber, it is connected with the base skid of transformer, the rubber shock absorber rest on the ground, the spring vibration-isolator includes at least 2 spring vibration isolation elements, the rubber shock absorber includes at least 2 Rubber Isolators, the spring vibration isolation element is identical with the quantity of Rubber Isolators, and the vertical axle of spring vibration isolation element and Rubber Isolators is on same plumb line.Compared with prior art, the utility model has the advantages that the vibration frequency range of isolation is wide, vibration isolating effect is good, the stability of a system is strong and the coupled vibrations in other directions does not occur.
Description
Technical field
The utility model is related to transformer vibration isolation field, more particularly, to a kind of combined type vibration isolation dress for transformer
Put.
Background technology
Transformer vibration frequency is main based on 100Hz and its frequency multiplication, belongs to high for conventional damper frequency
Frequency vibration.Dry-type transformer is typically all positioned in basement, and the vibration of generation has necessarily to neighbouring room and floor
Influence.Traditional noise-reduction method is only gone to reduce transformer noise in terms of sound insulation, sound insulation, and this approach can only be reduced by sky
The transformer noise that gas is propagated, the noise for structure-borne is at a complete loss as to what to do.In fact, the structure produced by indoor transformer is micro-
Vibration influences very little in itself for structure, and structural vibration induces noise and has considerable influence to resident's normal life.Therefore, become
The research of depressor vibration isolation problems seems particularly necessary.
Existing single-layer partiting polarization device lower frequency region vibration isolation is more effective, external from previous generation to improve the vibration isolation efficiency of vibration isolator
Discipline begins to use double-layer vibration isolating from the seventies, and double-layer vibration isolating system can make transport be reduced to -24dB/oct in theory, compare individual layer
The twice of vibration isolation efficiency, reduces transformer and is transmitted to the vibration on basis on the whole.Double-layer vibration isolating is exactly on a basis for vibration isolation
On again plus one layer of spring and damping carry out two-stage vibration isolation, although this vibration isolation way efficiency high, is still limited only to low
How the vibration isolation of frequency, expand the width of isolation frequency, can simultaneously realize the vibration isolation of low frequency and high frequency, is one urgently to be resolved hurrily
Problem.
Utility model content
The purpose of this utility model is directed to above mentioned problem and provides a kind of Combined type vibration isolating device for transformer.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of Combined type vibration isolating device for transformer, including spring vibration-isolator and rubber shock absorber, the spring every
The device that shakes is located at the upper strata of rubber shock absorber, is connected with the base skid of transformer, and the rubber shock absorber rest on the ground, described
Spring vibration-isolator includes at least 2 spring vibration isolation elements, and the rubber shock absorber includes at least 2 Rubber Isolators, described
Spring vibration isolation element is identical with the quantity of Rubber Isolators, and the vertical axle of spring vibration isolation element and Rubber Isolators is same
On plumb line.
The spring vibration isolation element includes spring, upper spacer and lower clapboard, the spring be located at upper spacer and lower clapboard it
Between, the upper spacer is connected with the base skid of transformer, and the lower clapboard is connected with Rubber Isolators.
The spring includes cylindrical screw wire spring.
2 times of the intrinsic frequency of the spring not less than the interfering frequency of transformer vibration.
The Rubber Isolators include rubber vibration isolation cushion and at least 2 groups circular bosses components, and the circular bosses component is uniform
The both sides up and down of rubber vibration isolation cushion are distributed in, are connected with spring vibration isolation element and ground respectively.
The circular bosses component includes the first circular bosses, the second circular bosses, the 3rd circular bosses and the 4th circular bosses, described the
The center of circle of one circular bosses, the second circular bosses, the 3rd circular bosses and the 4th circular bosses constitutes the square of 1cm × 1cm.
A diameter of 5mm of first circular bosses, is highly 3.5mm, a diameter of 5.9mm of second circular bosses, high
It is 2.8mm to spend, a diameter of 6.9mm of the 3rd circular bosses, is highly 2.2mm, the 4th circular bosses it is a diameter of
7.7mm, is highly 1.1mm.
Compared with prior art, the utility model has the advantages that：
(1) it is combined by by spring vibration-isolator and rubber shock absorber, while ensure that isolation dither, and
Certain low-frequency component can be isolated, isolation frequency scope is wide, and Practical Performance is strong.
(2) the vertical axle of spring vibration isolation element and Rubber Isolators is arranged on same plumb line, it is ensured that combined type
Isolation mounting will not occur the coupled vibrations on other directions, it is ensured that the stability of isolation mounting.
(3) both sides up and down of spring are provided with upper spacer and lower clapboard, and protective effect is served to spring, enhance spring
The safety and stability of vibration isolator, it is ensured that the safety and stability of Combined type vibration isolating device.
(4) spring selects cylindrical screw wire spring, big, low with elastic good, load range compared with other springs
Frequency anti-vibration performance is good and the low advantage of intrinsic frequency, and the fiting effect with rubber shock absorber is good, enhances combined type vibration isolation dress
Put the anti-vibration performance in low frequency.
(5) 2 times of the intrinsic frequency of spring not less than interfering frequency, it is therefore prevented that spring vibration-isolator resonates, it is ensured that
The anti-vibration performance of Combined type vibration isolating device.
(6) Rubber Isolators are respectively provided on two sides with multigroup circular bosses component up and down, when Rubber Isolators are pressurized,
The center section of rubber vibration isolation cushion bends waveform because being become by load, and vibrational energy is transmitted by circular bosses and bending waveform
Amount, can preferably disperse and absorb the vibration of any direction.
(7) circular bosses component includes four diameters and the different circular bosses of height so that bearing area is with load
Increase and increase, therefore can further be split circular bosses component according to different load flexible Applications, use flexibility
By force, circular bosses component can be also used in series, can further reduces vibration frequency, strengthen vibration isolating effect.
Brief description of the drawings
Fig. 1 is the structural representation of Combined type vibration isolating device；
Fig. 2 is the vibration isolating effect figure of Combined type vibration isolating device；
Wherein, 1 is spring vibration isolation element, and 2 is Rubber Isolators, and 3 is transformer base skid.
Specific embodiment
The utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with the utility model
Implemented premised on technical scheme, given detailed implementation method and specific operating process, but guarantor of the present utility model
Shield scope is not limited to following embodiments.
It is as shown in Figure 1 the Combined type vibration isolating device for transformer provided in the present embodiment, including spring vibration-isolator
And rubber shock absorber, spring vibration-isolator be located at rubber shock absorber upper strata, be connected with transformer base skid 3, rubber shock absorber
It rest on the ground, spring vibration-isolator includes at least 2 spring vibration isolation elements 1, rubber shock absorber includes at least 2 rubber vibration isolation units
Part 2, spring vibration isolation element 1 is identical with the quantity of Rubber Isolators 2, spring vibration isolation element 1 and Rubber Isolators 2 it is vertical
Axle is on same plumb line.
Spring vibration isolation element 1 includes spring, upper spacer and lower clapboard, and the spring is located between upper spacer and lower clapboard,
Upper spacer is connected with the base skid of transformer, and lower clapboard is connected with Rubber Isolators 2.Spring includes cylindrical screw steel wire bullet
Spring.2 times of the intrinsic frequency of spring not less than the interfering frequency of transformer vibration.Rubber Isolators 2 include rubber vibration isolation cushion
At least 2 groups circular bosses components, circular bosses component is uniformly distributed in the both sides up and down of rubber vibration isolation cushion, respectively with spring vibration isolation unit
Part 1 and ground connect.Circular bosses component includes the first circular bosses, the second circular bosses, the 3rd circular bosses and the 4th circular bosses, first
The center of circle of circular bosses, the second circular bosses, the 3rd circular bosses and the 4th circular bosses constitutes the square of 1cm × 1cm.
In the present embodiment, after the overview that combination isolation mounting is determined in the manner described above, respectively for spring vibration isolation
Device and rubber shock absorber carry out specific type selecting, and its process is as follows：
1) upper strata spring vibration-isolator type selecting
The intrinsic frequency f of system is determined firstn, forcing frequency f and system frequency fnThe ratio between Z optimal selection scope
For：Z=2~10, vibration isolation coefficient TA=0.25~0.01.By frequency-selecting vibration isolation principle, to account for main deal in forcing frequency most
Low frequency carries out Vibration Absorbing System Design, and transformer vibration is vibrated with the frequency multiplication 100,200,300Hz of supply frequency 50Hz, by vibration isolation
Principle, Vibration Absorbing System Design is carried out with the low-limit frequency that main deal is accounted in forcing frequency, carries out vibration isolation with low-limit frequency 100Hz here
Design.
Z=7.1 is selected, then fn=14Hz.
Calculate the stiffness K of each springziIntend using 16 vibration isolators in upper strata.
Required stiffness Kzi=m'(2 π fn)2=160 × (2 × 3.14 × 14)2=1374243.7 (N/m)
After being computed, suitable Yuan posts Luo Xuan Dan Yellow are drawn, its particular technique parameter see the table below：
The spring technical characteristic of table 1
The intrinsic frequency of cylindrical screw steel spring is：
The intrinsic frequency of spring must avoid interference frequency, may otherwise resonate, and meet the intrinsic frequency of spring
Not less than 2 times of interfering frequency.The flutter intrinsic frequency 356Hz of spring is full more than 2 times of the interfering frequency 100Hz of transformer
Foot is required.
Single-layer partiting polarization system free vibration frequency is：
It is close with required intrinsic frequency 14Hz, meet the requirements.
2) underlying rubber vibration isolator type selecting
Isolation cushion is multipoint mode rubber vibration isolation cushion, and its upper and lower surface has the boss of four kinds of different-diameters and different height
Platform, two sides cross arrangement, centre is with 11mm as substrate.Four kinds of boss sizes are：Diameter 5mm, 3.5mm high；Diameter 5.9mm is high
2.8mm；Diameter 6.9mm, 2.2mm high；Diameter 7.7mm, 1.8mm high.Every group of four boss, center constitutes the pros of 1cm × 1cm
Shape, standard block size is 240mm × 460mm.
When boss is pressurized, vibration isolator center section bends waveform because being become by load, by intersecting boss and centre
Bend waveform to transmit vibrational energy, preferably disperse and absorb the vibration of any direction, preferably play the elasticity of rubber.
Under horizontal force action, circular bosses play braking, can prevent the slip of machine.This vibration isolator is by four circular bosses of intersection
Carry out bearing load, bearing area is increased with the increase of load, therefore can be according to different loading demands flexible Applications, will
It is divided into 4 groups, 2 groups, single group, and in same specification, such as load difference can also obtain close intrinsic frequency, i.e., with grade frequency
Property, can also be used in series, can further reduce frequency.The technical data of rubber vibration isolation cushion enters following table：
The rubber vibration insulating pad technical data of table 2
In the present embodiment, the area of the isolation cushion of selection is：32cm2, side long takes 7cm, and short side takes 5cm.
According to each town effect of the Combined type vibration isolating device constituted after above-mentioned type selecting as shown in Fig. 2 as seen from the figure, combining
The effect of formula isolation mounting each frequency vibration isolation is all relatively good, passband vibration isolation rate less than 0.2%, with calculated value
0.167% is more or less the same.
Claims (7)
1. a kind of Combined type vibration isolating device for transformer, including spring vibration-isolator and rubber shock absorber, the spring vibration isolation
Device is located at the upper strata of rubber shock absorber, is connected with the base skid of transformer, and the rubber shock absorber rest on the ground, its feature
It is that the spring vibration-isolator includes at least 2 spring vibration isolation elements, the rubber shock absorber includes at least 2 rubber vibration isolations
Element, the spring vibration isolation element is identical with the quantity of Rubber Isolators, and spring vibration isolation element and Rubber Isolators hang down
To axle on same plumb line.
2. the Combined type vibration isolating device for transformer according to claim 1, it is characterised in that the spring vibration isolation unit
Part includes spring, upper spacer and lower clapboard, and the spring is located between upper spacer and lower clapboard, the upper spacer and transformer
Base skid is connected, and the lower clapboard is connected with Rubber Isolators.
3. the Combined type vibration isolating device for transformer according to claim 2, it is characterised in that the spring includes circle
Post spiral steel wire spring.
4. the Combined type vibration isolating device for transformer according to claim 2, it is characterised in that the spring it is intrinsic
2 times of frequency not less than the interfering frequency of transformer vibration.
5. the Combined type vibration isolating device for transformer according to claim 1, it is characterised in that the rubber vibration isolation unit
Part includes rubber vibration isolation cushion and at least 2 groups circular bosses components, and the circular bosses component is uniformly distributed in the upper and lower of rubber vibration isolation cushion
Both sides, are connected with spring vibration isolation element and ground respectively.
6. the Combined type vibration isolating device for transformer according to claim 5, it is characterised in that the circular bosses component
Including the first circular bosses, the second circular bosses, the 3rd circular bosses and the 4th circular bosses, first circular bosses, the second circular bosses,
The center of circle of three circular bosses and the 4th circular bosses constitutes the square of 1cm × 1cm.
7. the Combined type vibration isolating device for transformer according to claim 6, it is characterised in that first circular bosses
A diameter of 5mm, be highly 3.5mm, a diameter of 5.9mm of second circular bosses is highly 2.8mm, the 3rd boss
A diameter of 6.9mm of platform, is highly 2.2mm, and a diameter of 7.7mm of the 4th circular bosses is highly 1.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621281095.XU CN206234313U (en) | 2016-11-25 | 2016-11-25 | A kind of Combined type vibration isolating device for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621281095.XU CN206234313U (en) | 2016-11-25 | 2016-11-25 | A kind of Combined type vibration isolating device for transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206234313U true CN206234313U (en) | 2017-06-09 |
Family
ID=58980019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621281095.XU Active CN206234313U (en) | 2016-11-25 | 2016-11-25 | A kind of Combined type vibration isolating device for transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206234313U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678268A (en) * | 2016-11-25 | 2017-05-17 | 国网上海市电力公司 | Combined type vibration isolating device used for transformer |
| CN117432094A (en) * | 2023-12-21 | 2024-01-23 | 北京市建筑设计研究院有限公司 | Subway upper cover vibration double-control system and subway upper cover building structure system |
-
2016
- 2016-11-25 CN CN201621281095.XU patent/CN206234313U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678268A (en) * | 2016-11-25 | 2017-05-17 | 国网上海市电力公司 | Combined type vibration isolating device used for transformer |
| CN117432094A (en) * | 2023-12-21 | 2024-01-23 | 北京市建筑设计研究院有限公司 | Subway upper cover vibration double-control system and subway upper cover building structure system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203049822U (en) | Three-dimensional shock absorption damper | |
| CN201835397U (en) | TMD (tuned mass damper) device | |
| CN205314138U (en) | Three -dimensional isolation bearing of resistance to plucking type | |
| CN201146335Y (en) | Shock insulation apparatus for high voltage electric installation | |
| CN206234313U (en) | A kind of Combined type vibration isolating device for transformer | |
| CN106759927A (en) | A kind of tandem type laminated rubber spring three-dimensional compounded shock isolating pedestal | |
| CN104563319B (en) | Viscoelastic damping rolling ball shock insulation support | |
| CN106677366B (en) | A kind of tuning quality damping unit | |
| CN107327535A (en) | A kind of laminated type metal-rubber shock isolating pedestal for Substation Electric Equipment | |
| CN110344502A (en) | A kind of anti-buckling low frequency vibration isolation rubber support | |
| CN103821248A (en) | Limit connecting rod type low frequency vibration isolation energy-consumption support | |
| CN208311664U (en) | A kind of gate antidetonation suspension and support | |
| CN106678268A (en) | Combined type vibration isolating device used for transformer | |
| CN105507447A (en) | Passive variable damping tuned mass damper apparatus | |
| CN201521587U (en) | Limiting type composite shock absorber | |
| CN108842920B (en) | Assembled shock isolation system | |
| CN207884293U (en) | A kind of hierarchical antidetonation capacitor equipment | |
| CN113684941A (en) | Low-frequency vibration isolation and damping structure of subway upper cover and design method thereof | |
| CN113605548B (en) | Rail transit upper cover structure with multistage vibration reduction and defense lines and design method thereof | |
| CN207144606U (en) | A kind of Electronics and Information Engineering communication tower | |
| CN201874117U (en) | Honeycomb rubber shock pad | |
| CN202231974U (en) | Damper installing device and electrical equipment damping control system | |
| CN206099251U (en) | Be used for knob insulator type electrical equipment absorbing hybrid control device | |
| CN207079748U (en) | Variable damping tuned mass damper device | |
| CN206958140U (en) | A kind of power equipment base with shock-absorbing function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |