CN106759452A - A kind of transformer foundation shock isolation system of overturn-preventing - Google Patents
A kind of transformer foundation shock isolation system of overturn-preventing Download PDFInfo
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- CN106759452A CN106759452A CN201611037375.0A CN201611037375A CN106759452A CN 106759452 A CN106759452 A CN 106759452A CN 201611037375 A CN201611037375 A CN 201611037375A CN 106759452 A CN106759452 A CN 106759452A
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- Prior art keywords
- overturn
- preventing
- pedestal
- transformer
- isolation system
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/44—Foundations for machines, engines or ordnance
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/08—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against transmission of vibrations or movements in the foundation soil
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The present invention relates to a kind of transformer foundation shock isolation system of overturn-preventing, including the support (4) for fixedly mounting transformer and the pedestal (6) being fixed on earth construction, overturn-preventing shock isolating pedestal (5) is additionally provided between support (4) and pedestal (6), the overturn-preventing shock isolating pedestal (5) is including making the relative damping by friction component for sliding of level between support (4) and pedestal (6), and prevents the overturn-preventing tension component being vertically mutually disengaged between support (4) and pedestal (6).Compared with prior art, Base-isolation system energy filtering seismic ripple medium, high frequency part of the invention, reduce the vibration of top transformer part, prevent the parts such as sleeve pipe from being destroyed in earthquake, the shock insulation cycle of overturn-preventing shock isolation system is unrelated with shock insulation apparatus quality, and only with shock isolation system relating to parameters, parameter range of choice is big, design is simple, widely applicable etc..
Description
Technical field
The present invention relates to a kind of shock isolation system, more particularly, to a kind of transformer foundation shock isolation system of overturn-preventing.
Background technology
As China's project of transmitting and converting electricity develops to high pressure, super-pressure and extra-high voltage direction, AC Substation and DC converter
Substantial amounts of crucial converting equipment is equipped with standing --- large-scale (i.e. high pressure, super-pressure and extra-high voltage) power transformer and the change of current become
Depressor.These high-power transformer volumes and quality are big, and cost is high, and thereon on be mounted with the easily worn parts such as substantial amounts of sleeve pipe.
Ago earthquake centre, because the power augmentation of transformer-cabinet is acted on, the part such as bushing shell for transformer occurs in that serious damage；In addition
Because the effect of horizontal earthquake power, transformer occur in that the serious earthquake toppled in earthquake, transformer station is caused to stop transport big with power network
Area has a power failure.For transformer seismic vulnerability analysis problem, some researchers propose various base isolation protection to transformer and arrange
Apply.Chinese patent CN 202339791U carry out base isolation to realize earthquake protection using combined rubber bearing to transformer.In
State patent CN 201984929U propose that set isolated component and element for energy dissipation in transformer body bottom implements antidetonation to transformer
Protection.The transformer of bottom belt vehicle structure is fixed on basis and rail by Chinese patent CN 203218067U by L-type fixed plate
On road, prevent dolly from being slided in earthquake, so as to improve the shock resistance of transformer.Chinese patent CN 204257330U pass through
Earthquake isolating equipment-rubber support is installed between 500kV transformer bases and basis to realize to transformer earthquake protection.China
Patent CN105322454A proposes a kind of separate type shock isolation system, using this shock isolation system, transformer station integrally can be carried out
Shock insulation.To sum up, base isolation, the choosing of rubber earthquake isolation support size are all carried out to transformer using rubber earthquake isolation support in above-mentioned patent
Select closely related with the quality of shock insulation transformer, the quality of transformer is general compared with building structure very little, to reach preferable shock insulation
Effect, the size and rigidity of rubber support is all smaller, and stability is poor, therefore rubber earthquake isolation support can change transformer normal work
Basic motive characteristic and resistance to capsizing, be exaggerated transformer itself vibration and construct noise, and then influence transformer just
Normal service behaviour.The transformer center of gravity of shock insulation is higher, and under geological process, transformer easily topples, and rubber earthquake isolation support
Tensile capacity very little, easily causes serious transformer and integrally topples earthquake.
The content of the invention
The purpose of the present invention is exactly to provide a kind of transformation of overturn-preventing for the defect for overcoming above-mentioned prior art to exist
Device Base-isolation system.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of transformer foundation shock isolation system of overturn-preventing, including for fixedly mounting the support of transformer and being fixed on ground
Pedestal in the structure of face, is additionally provided with overturn-preventing shock isolating pedestal between support and pedestal, and the overturn-preventing shock isolating pedestal includes making branch
Frame and the damping by friction component of bearing relative movement, and prevent the overturn-preventing tension component that the transformer on support topples.
Preferably, described damping by friction component includes the multiple friction isolation bearings being arranged between support and pedestal,
Each friction isolation bearing includes the upper plate and lower shoe that are fixedly connected with support and pedestal respectively, in upper plate and lower shoe
On further respectively have a sliding rail, two described sliding rails are orthogonal thereto to be oppositely arranged, between two sliding rails
Connector is additionally provided with, the upper and lower end face of the connector is respectively equipped with the sliding block matched with the sliding rail.
It is furthermore preferred that described sliding rail is in circular arc.Using simple pendulum principle make shock insulation transformer have it is certain from
Dynamic reset capability.
It is furthermore preferred that being additionally provided with the baffle plate that anti-limited slip block is skidded off at the two ends of every sliding rail.
It is furthermore preferred that described sliding block is rotated with connector being connected.
It is furthermore preferred that the both sides of described upper plate and lower shoe are equipped with the tension groove matched with the sliding rail,
Also it is correspondingly provided with the overturn-preventing arm-tie for stretching into tension groove and being slidably matched with the tension groove, institute respectively in the top and the bottom of connector
The tension groove and overturn-preventing arm-tie stated are with being combined into the overturn-preventing tension component.
Even more preferably, it is processed into coefficient of friction very little on the sliding surface of described sliding rail and tension groove
Smooth panel.
Shock absorbing process of the invention is as follows：
Two sliding rails of overturn-preventing shock isolating pedestal are arc orbit, in poised state, rack-mount transformation
Device casing automatic will slide into track minimum point due to Action of Gravity Field, therefore with from recovery capacity.Overturn-preventing shock isolating pedestal
Two sliding rails are orthogonal be oppositely arranged it is T-shaped.Two sliding rails transmit vertical force by connector, and connector passes through sliding block
Connected with sliding rail, sliding block bears vertical pressure, the two sides of every sliding rail are additionally provided with and are matched with sliding rail trend
Arc groove, the overturn-preventing arm-tie for stretching into arc groove and being slidably matched with it, overturn-preventing arm-tie are installed on connector
Vertical tension can be provided, pulling force when transformer-cabinet topples is born.To prevent connector from skidding off, sliding rail two ends are provided with
Baffle plate.Rotated by bearing pin between connector and sliding block and connected, during slip, connector can freely be rotated around bearing pin, it is ensured that be sliding
Block is not subject to moment of flexure.All slidably contacting sections all post the smooth panel of low friction friction, such as：On the sliding surface of sliding rail
Equipped with mirror board, friction panel has certain coefficient of friction with sliding block, it is ensured that transformer will not occur position under small load effect
Move.Upper and lower two sliding rails are connected on upper plate and lower shoe by bolt or welding.Upper plate connecting bracket, under
Base plate connects pedestal.
The earthquake isolating equipment that the present invention is made up of setting multiple overturn-preventing friction isolation units so that transformer-cabinet is not
It is joined directly together with basis.By adjusting two radius of curvature of orthogonal sliding rail of earthquake isolating equipment, and between sliding block and guide rail
Coefficient of friction realize the shock design target of transformer.The bearing capacity and quantity of the shock isolating pedestal in overturn-preventing shock isolation system
Volume, quality and gravity centre distribution according to transformer determine.When by geological process, earthquake motion passes through shock isolation system to transformer
When will be filtered by Seismic Isolation of Isolation Layer by filtration, seismic wave medium, high frequency part, reduce the effect suffered by transformer-cabinet,
So that the vibration of transformer-cabinet is obviously controlled, power augmentation effect reduces, and then effectively avoids to transformer
The destruction of box house element and thimble assembly etc., improves the anti-seismic performance of transformer.
Compared with prior art, the present invention has advantages below：
(1) overturn-preventing friction isolation system energy filtering seismic ripple medium, high frequency part, reduces the parts such as upper strata bushing shell for transformer
Vibration, prevent sleeve pipe etc. from destroying.Overturn-preventing shock isolation system is made up of support, overturn-preventing shock isolating pedestal, pedestal, divides the work bright
Really；Using different supports, the converting equipment of different types can be installed, be widely used.
(2) overturn-preventing shock isolating pedestal possesses two orthogonal Circular Sliding tracks, shock isolation system both direction every
The shake cycle depends on the radius of arc orbit, and energy dissipation capacity depends on friction, capability between sliding block and sliding rail, therefore every
The shock insulation cycle for shaking device is unrelated with shock insulation apparatus quality, therefore its parameter range of choice is big, and design is simple, widely applicable.
(3) sliding rail is arc orbit, and in balance or after earthquake, transformer will return back to sliding rail due to deadweight
Minimum point, with from recovery capacity.Upper and lower two orthogonal sliding rails, along with sliding block is connected with the rotation of connector, protect
Card transformer can be in level to slidably, and in sliding process, transformer remains level, will not run-off the straight.
(4) earthquake isolating equipment track is orthogonal T-shaped slide rail, and sliding block arm-tie can provide vertical tension, resist due to ground
Under shake effect, the pulling force that topples that level is produced to inertia force.Under small load, sliding block has stiction to act on track, transformation
Device will not be subjected to displacement, and prevent transformer from sliding under normal operating conditions.
(5) overturn-preventing shock isolating pedestal small volume, bolt connection is with support and pedestal connected mode, conveniently install,
Transport, replacing.
(6) overturn-preventing arm-tie can limit connector and two sliding rails vertical in the sliding process of tension groove
The displacement in direction, is prevented effectively from rack-mount transformer and surprisingly topples.
Brief description of the drawings
Fig. 1 is the assembling schematic diagram of shock isolation system of the invention and transformer；
Fig. 2 is the structural representation of shock isolation system of the invention；
Fig. 3 is support of the invention, overturn-preventing shock isolating pedestal, the connection diagram of pedestal；
Fig. 4 is the structural representation of overturn-preventing shock isolating pedestal of the invention；
Fig. 5 is the generalized section of overturn-preventing shock isolating pedestal of the invention；
Fig. 6 is the sliding block of overturn-preventing shock isolating pedestal of the invention in the slip schematic diagram that is stressed；
Fig. 7 is that the sliding block of overturn-preventing shock isolating pedestal of the invention is being slided schematic diagram by pulling force；
In figure, 1- bushings shell for transformer, 2- conservators, 3- transformer-cabinets, 4- supports, 5- overturn-preventing shock isolating pedestals, 6- pedestals,
7- upper plates, 8- sliding rails, 9- connectors, 10- sliding blocks, 11- bearing pins, 12- overturn-preventing arm-ties, 13- baffle plates, 14- lower shoes,
The smooth panels of 15-, 16- bolts.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
A kind of transformer foundation shock isolation system of overturn-preventing, its structure as depicted in figs. 1 and 2, including for fixedly mounting
The support 4 of transformer and the pedestal 6 being fixed on earth construction, the transformer on support 4 mainly include transformer-cabinet 3, oil
Pillow 2 and bushing shell for transformer 1, are additionally provided with overturn-preventing shock isolating pedestal 5, its structure such as Fig. 3~Fig. 5 institutes between support 4 and pedestal 6
Show, overturn-preventing friction isolation bearing 5 includes making the damping by friction component of support 4 and the movement of the relative level of pedestal 6, and prevents branch
The overturn-preventing tension component that transformer on frame 4 topples, damping by friction component includes being arranged on many between support 4 and pedestal 6
Individual friction isolation bearing, each friction isolation bearing includes the upper plate 7 being fixedly connected with support 4 and pedestal 6 respectively and bottom
Plate 14, further respectively has a sliding rail 8 in circular arc on upper plate 7 and lower shoe 14, and two sliding rails 8 are in just
Friendship is oppositely arranged, and connector 9 is additionally provided between two sliding rails 8, and the upper and lower end face of the connector 9 passes through bearing pin respectively
11 rotate the sliding block 10 for being provided with and being matched with sliding rail 8, are additionally provided with what anti-limited slip block 10 was skidded off at the two ends of every sliding rail 8
Baffle plate 13.Upper plate 7 and lower shoe 14 can be fixedly connected with support 4 and pedestal 6 respectively by bolt 16.
The both sides of upper plate 7 and lower shoe 14 are equipped with the tension groove matched with sliding rail 8, in the upper and lower of connector 9
Portion is also correspondingly provided with the overturn-preventing arm-tie 12 for stretching into tension groove and being slidably matched with tension groove, tension groove and overturn-preventing arm-tie respectively
12 with being combined into overturn-preventing tension component.Smooth panel 15, overturn-preventing are processed on the sliding surface of sliding rail 8 and tension groove
The motion process difference of shock isolating pedestal 5 is as shown in Figure 6 and Figure 7.
Shock absorbing process of the invention is as follows：
Two sliding rails 8 of overturn-preventing shock isolating pedestal 5 are arc orbit, after poised state or earthquake, installed in branch
Transformer-cabinet on frame 4 automatic will slide into track minimum point due to Action of Gravity Field, therefore with from recovery capacity.Anti-dumping
Cover shock isolating pedestal 5 two sliding rails 8 it is orthogonal be oppositely arranged it is T-shaped.Two sliding rail 8 is transmitted vertically by connector 9
Power, connector 9 is connected by sliding block 10 and sliding rail 8, and sliding block 10 bears vertical pressure, every two sides of sliding rail 8
The arc groove matched with the trend of sliding rail 8 is additionally provided with, is provided with to stretch into arc groove and slided with it on connector 9 and is matched somebody with somebody
The overturn-preventing arm-tie 12 of conjunction, overturn-preventing arm-tie 12 can provide vertical tension, prevent transformer-cabinet from toppling.To prevent connector 9
Skid off, the two ends of sliding rail 8 are provided with baffle plate 13.Connection is rotated by bearing pin 11 between connector 9 and sliding block 10, during slip,
Connector 9 can freely be rotated around bearing pin 11, it is ensured that sliding block 10 is not subject to moment of flexure.All slidably contacting sections are all processed into low rubbing
The smooth panel 15 of coefficient is wiped, such as：Mirror board is processed on the sliding surface of sliding rail 8, friction panel has necessarily with sliding block 10
Coefficient of friction, it is ensured that transformer will not be subjected to displacement under small load effect.Upper and lower two sliding rails 8 pass through 16 points of bolt
It is not connected on upper plate 7 and lower shoe 14.The connecting bracket 4 of upper plate 7, the connection pedestal 6 of lower shoe 14.
The above-mentioned description to embodiment is to be understood that and use invention for ease of those skilled in the art.
Person skilled in the art obviously can easily make various modifications to these embodiments, and described herein general
Principle is applied in other embodiment without by performing creative labour.Therefore, the invention is not restricted to above-described embodiment, ability
Field technique personnel announcement of the invention, does not depart from improvement that scope made and modification all should be of the invention
Within protection domain.
Claims (7)
1. the transformer foundation shock isolation system of a kind of overturn-preventing, including for fixedly mounting the support (4) of transformer and being fixed on
Pedestal (6) on earth construction, it is characterised in that overturn-preventing shock isolating pedestal (5) is additionally provided between support (4) and pedestal (6),
The overturn-preventing shock isolating pedestal (5) including making the relative damping by friction component for sliding of level between support (4) and pedestal (6), and
Prevent the vertical overturn-preventing tension component being mutually disengaged between support (4) and pedestal (6).
2. a kind of transformer foundation shock isolation system of overturn-preventing according to claim 1, it is characterised in that described friction
Dampening assembly includes the multiple friction isolation bearings being arranged between support (4) and pedestal (6), and each friction isolation bearing includes
The upper plate (7) and lower shoe (14) being fixedly connected with support (4) and pedestal (6) respectively, in upper plate (7) and lower shoe (14)
On further respectively have a sliding rail (8), two described sliding rails (8) are orthogonal thereto to be oppositely arranged, in two slip rails
Connector (9) is additionally provided between road (8), the upper and lower end face of the connector (9) is respectively equipped with and is matched with the sliding rail (8)
Sliding block (10).
3. a kind of transformer foundation shock isolation system of overturn-preventing according to claim 2, it is characterised in that described slip
Track (8) is in circular arc.
4. the transformer foundation shock isolation system of a kind of overturn-preventing according to claim 2, it is characterised in that in every slip
The two ends of track (8) are additionally provided with the baffle plate (13) that anti-limited slip block (10) is skidded off.
5. a kind of transformer foundation shock isolation system of overturn-preventing according to claim 2, it is characterised in that described sliding block
(10) rotated with connector (9) and be connected.
6. a kind of transformer foundation shock isolation system of overturn-preventing according to claim 2, it is characterised in that described upper bottom
The both sides of plate (7) and lower shoe (14) are equipped with the tension groove matched with the sliding rail (8), in the upper and lower of connector (9)
Portion is also correspondingly provided with the overturn-preventing arm-tie (12) for stretching into tension groove and being slidably matched with the tension groove, described tension groove respectively
With overturn-preventing arm-tie (12) with being combined into the overturn-preventing tension component.
7. a kind of transformer foundation shock isolation system of overturn-preventing according to claim 6, it is characterised in that described slip
The sliding surface of track (8) and tension groove is processed into smooth panel (15) of the coefficient of friction less than 0.1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611037375.0A CN106759452A (en) | 2016-11-23 | 2016-11-23 | A kind of transformer foundation shock isolation system of overturn-preventing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611037375.0A CN106759452A (en) | 2016-11-23 | 2016-11-23 | A kind of transformer foundation shock isolation system of overturn-preventing |
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| Publication Number | Publication Date |
|---|---|
| CN106759452A true CN106759452A (en) | 2017-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611037375.0A Pending CN106759452A (en) | 2016-11-23 | 2016-11-23 | A kind of transformer foundation shock isolation system of overturn-preventing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109138205A (en) * | 2018-09-10 | 2019-01-04 | 北京建筑大学 | Variation rigidity tension slide device |
| CN111364527A (en) * | 2020-03-09 | 2020-07-03 | 南昌大学 | Movable anti-seismic device suitable for bottom of building foundation and construction method thereof |
| CN114427191A (en) * | 2022-03-07 | 2022-05-03 | 广州大学 | Arch bridge type tensile conical variable-curvature variable-friction pendulum shock insulation support |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11200383A (en) * | 1998-01-16 | 1999-07-27 | Yukio Nakagawa | Vibration-isolation supporting structure of structure-heavy installed article, etc. |
| CN103147393A (en) * | 2013-03-09 | 2013-06-12 | 北京工业大学 | Pulling-resistant friction isolation bearing for bridge |
| CN204257330U (en) * | 2014-11-24 | 2015-04-08 | 中国电力工程顾问集团西南电力设计院有限公司 | A kind of 500kV transformer isolation structure |
| CN205502046U (en) * | 2016-04-15 | 2016-08-24 | 山西省交通科学研究院 | Retaining structure steel concrete earthquake -proof foundation |
-
2016
- 2016-11-23 CN CN201611037375.0A patent/CN106759452A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11200383A (en) * | 1998-01-16 | 1999-07-27 | Yukio Nakagawa | Vibration-isolation supporting structure of structure-heavy installed article, etc. |
| CN103147393A (en) * | 2013-03-09 | 2013-06-12 | 北京工业大学 | Pulling-resistant friction isolation bearing for bridge |
| CN204257330U (en) * | 2014-11-24 | 2015-04-08 | 中国电力工程顾问集团西南电力设计院有限公司 | A kind of 500kV transformer isolation structure |
| CN205502046U (en) * | 2016-04-15 | 2016-08-24 | 山西省交通科学研究院 | Retaining structure steel concrete earthquake -proof foundation |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109138205A (en) * | 2018-09-10 | 2019-01-04 | 北京建筑大学 | Variation rigidity tension slide device |
| CN111364527A (en) * | 2020-03-09 | 2020-07-03 | 南昌大学 | Movable anti-seismic device suitable for bottom of building foundation and construction method thereof |
| CN114427191A (en) * | 2022-03-07 | 2022-05-03 | 广州大学 | Arch bridge type tensile conical variable-curvature variable-friction pendulum shock insulation support |
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Application publication date: 20170531 |