CN108538550B - Anti-vibration flexible structure of converter transformer oil conservator bracket - Google Patents
Anti-vibration flexible structure of converter transformer oil conservator bracket Download PDFInfo
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- CN108538550B CN108538550B CN201810568555.4A CN201810568555A CN108538550B CN 108538550 B CN108538550 B CN 108538550B CN 201810568555 A CN201810568555 A CN 201810568555A CN 108538550 B CN108538550 B CN 108538550B
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- fixing plate
- bolt
- vibration
- opening
- shaped groove
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Transformer Cooling (AREA)
Abstract
The invention relates to an anti-vibration flexible structure of a converter transformer oil conservator bracket, which comprises at least one pair of fixing units and a fixing plate with a transverse arc-shaped groove in the middle, wherein each fixing unit consists of a bolt fixing plate, two bolts, two flat washers and two nuts; the flat washer is placed on one side of the arc-shaped groove surface of the fixing plate, and the threaded end of the bolt sequentially penetrates through the flat washer, the second opening in the fixing plate and the first opening in the bolt fixing plate and then is fastened through the nut. The invention has simple structure, convenient installation and low economic investment cost; the damage to the transformer oil conservator and the transformer body caused by violent vibration caused by earthquakes and other reasons can be effectively prevented.
Description
Technical Field
The invention belongs to the technical field of transformer production and installation, and particularly relates to an anti-vibration flexible structure of a converter transformer oil conservator bracket with higher anti-vibration requirement at an on-site installation site.
Background
With the development of global energy internet, the ultra-high voltage direct current transmission technology is steadily promoted, a large number of ultra-high voltage direct current transmission projects are developed in the world, a converter transformer is used as one of the most main devices in a direct current transmission system, the price is high, the reliability of the converter transformer has great influence on the whole system, once the converter transformer is seriously damaged in strong earthquake or other vibration, direct economic loss can be caused, and large-area power failure can be caused in serious conditions so as to influence the normal production and living power utilization of a paralyzed area.
In the structure of the converter transformer, the oil conservator is generally far away from the upper part of the transformer body, particularly, the converter transformer for offshore wind power with extremely strict requirements on vibration has limited vibration buffering capacity of the conventional structure, and the oil conservator is easily damaged due to vibration. Meanwhile, the damage of the oil conservator can cause deformation, tearing and other damages to the wall of the transformer tank through the oil conservator bracket, and further causes serious disasters such as fire and explosion.
Disclosure of Invention
In order to solve the technical problems, the invention provides an anti-vibration flexible structure of a converter transformer oil conservator bracket, wherein a fixed plate and a bolt are matched to form flexible bracket connection, so that the damage of severe vibration to a transformer oil conservator and a transformer body caused by earthquake and other reasons can be prevented.
The technical scheme adopted by the invention is as follows:
an anti-vibration flexible structure of a converter transformer oil conservator bracket comprises: the fixing unit comprises a bolt fixing plate, two bolts, two flat washers and two nuts, wherein the surface of the bolt fixing plate is symmetrically provided with a first opening hole for the bolt to pass through, the surface of the fixing plate with the transverse arc-shaped groove is provided with a second opening hole for the bolt to pass through, and the number and the position of the second opening holes correspond to those of the first opening holes on the bolt fixing plate one by one; the flat washer is placed on one side of the arc-shaped groove surface of the fixing plate, and the threaded end of the bolt sequentially penetrates through the flat washer, the second opening in the fixing plate and the first opening in the bolt fixing plate and then is fastened through the nut. In the specific use process, holes are formed in the corresponding positions of the side faces of the upper support and the lower support of the converter transformer oil conservator, the number of the holes in the upper support and the number of the holes in the lower support are the same, the anti-vibration flexible structures are fixedly installed at the connection matching positions of the upper support and the lower support, one face of the arc-shaped groove formed in the fixing plate faces outwards during installation, and destructive force caused by severe vibration can be effectively buffered. The working principle of the anti-vibration flexible structure is as follows: when the fixed plate bears the stress generated by the upper bracket or the lower bracket due to vibration, the deformation perpendicular to the direction of the fixed plate is generated, and the deformation is timely recovered through the telescopic performance of the arc surface of the arc groove on the fixed plate.
Preferably, the vibration-resistant flexible structure of the converter transformer conservator bracket comprises two pairs (i.e. four groups) of fixing units. Two pairs of fixing units are respectively distributed at the upper bracket and the lower bracket of the oil conservator, two groups of fixing units are respectively arranged on the upper bracket and the lower bracket, so that the upper bracket and the lower bracket are respectively provided with two fixing supporting points, and the connection is more reliable. The connection is not reliable enough for the quantity of fixed unit is too little, and too much causes structure complicacy, cost to improve, and can not effectively improve joint strength.
Preferably, the second opening above the arc-shaped groove on the fixing plate is a round hole, the second opening below the arc-shaped groove is a long round hole, and the long round hole is arranged so that the assembly position can be finely adjusted through the long round hole during installation, and assembly can be completed more conveniently.
Preferably, the first opening on the bolt fixing plate is provided with an internal thread matched with the bolt, and the bolt is screwed into the internal thread and then fastened through the nut, so that the assembly of the vibration-resistant flexible structure is firmer and more reliable.
The invention has the beneficial effects that:
1) the invention has simple structure, convenient installation and low economic investment cost;
2) after the upper bracket and the lower bracket of the oil conservator are connected by adopting the invention, the damage of the transformer oil conservator and the transformer body caused by violent vibration caused by earthquake and other reasons can be effectively prevented.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a partial enlarged view of the fixing unit of the present invention;
FIG. 3 is a front view of the fixation plate of the present invention;
FIG. 4 is a left side view of the fixation plate of the present invention;
FIG. 5 is a schematic view of the installation effect of the present invention;
in the figure, 1-a fixing unit, 2-a fixing plate with a transverse arc-shaped groove at the middle position, 3-a bolt fixing plate, 4-a bolt, 5-a flat washer, 6-an upper oil storage cabinet bracket, 7-a vibration-resistant flexible bracket, 8-a lower oil storage cabinet bracket and 9-a nut.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, which is a schematic view of a three-dimensional structure of the present invention, a vibration-resistant flexible structure of a converter transformer conservator bracket includes: four groups of fixing units 1 and a fixing plate 2 with a transverse arc-shaped groove in the middle.
As shown in fig. 2, which is a partially enlarged view of the fixing unit of the present invention; as shown in fig. 3, is a front view of the fixing plate of the present invention; fig. 4 is a left side view of the fixing plate of the present invention. The fixing unit 1 is composed of a bolt fixing plate 3, two bolts 4, two flat washers 5 and two nuts 9, wherein the surface of the bolt fixing plate 3 is symmetrically provided with a first opening through which the bolt 4 passes, and the first opening is provided with internal threads. The surface of the belt fixing plate 2 is provided with a second opening through which the bolt 4 passes, and the number and the position of the second opening correspond to those of the first opening on the bolt fixing plate 3 one by one; wherein, the four opening II above the arc-shaped groove are round holes, and the four opening II below the arc-shaped groove are long round holes. When the bolt is installed, one side of the fixing plate 2 with the arc-shaped groove faces towards the outer side, the flat gasket 5 is placed on the outer side face of the fixing plate 2, and the threaded end of the bolt 4 sequentially penetrates through the flat gasket 5, the second opening in the fixing plate 2 with the arc-shaped groove and the first opening screwed into the bolt fixing plate 3 and is fastened through the nut 9.
Fig. 5 is a schematic view showing the installation effect of the present invention. The side surfaces of the upper bracket and the lower bracket of the converter transformer oil conservator are respectively provided with holes with the same number for the bolts 4 to pass through. After the upper bracket and the lower bracket of the converter transformer oil conservator are installed in place, the fixing plate 2 with the transverse arc-shaped groove is placed on the outer side surface of the matching position of the upper bracket and the lower bracket of the converter transformer oil conservator, the four groups of fixing units 1 are placed on the inner side surface of the matching position of the upper bracket and the lower bracket, the fixing of the contact surface of the upper bracket and the lower bracket in the vertical direction is completed through the bolts 4 in the fixing units 1 (namely, the Y-direction side surface in the figure and the direction are the same as the direction of the bolts 4). When the transformer body (the lower part of the flexible support) or the oil conservator (the upper part of the flexible support) is a vibration source point, the vibration-proof flexible structure can greatly buffer the vibration in the Y direction. The working principle is as follows: 1. the fixing plate 2 with the arc-shaped groove has the function of buffering stress deformation; 2. the four groups of fixed units can be sequentially put into stress bearing according to the stress, the larger the stress is, the more the number of units bearing the stress is, and the stress components with different gradients are borne in a matching manner. The structure effectively buffers the destructive effect of certain severe vibration on the transformer oil conservator and the transformer body, and has the advantages of simple structure, obvious effect and strong feasibility.
In the embodiment, the fixing plate 2 with the arc-shaped groove, the bolt fixing plate 3 and the flat washer 5 are made of common carbon steel plates, and the materials are materials with better economical efficiency on the premise of ensuring the strength; the bolt 4 and the nut 9 are made of hot galvanizing materials, and the hot galvanizing materials have good corrosion resistance.
Claims (4)
1. The utility model provides a converter transformer stores up anti vibration flexible construction of oil tank support which characterized in that includes: the fixing device comprises at least one pair of fixing units (1) and a fixing plate (2) with a transverse arc-shaped groove in the middle, wherein each fixing unit (1) consists of a bolt fixing plate (3), two bolts (4), two flat washers (5) and two nuts (9), the surface of each bolt fixing plate (3) is symmetrically provided with a first opening through which the bolt (4) passes, the surface of each fixing plate (2) is provided with a second opening through which the bolt (4) passes, and the number and the positions of the second openings correspond to those of the first openings on the bolt fixing plate (3) one by one;
the flat washer (5) is placed on one side of the arc-shaped groove surface of the fixing plate (2), and the threaded end of the bolt (4) penetrates through the flat washer (5), the second hole in the fixing plate (2) and the first hole in the bolt fixing plate (3) in sequence and then is fastened through the nut (9).
2. The vibration-resistant flexible structure of the converter transformer conservator bracket according to claim 1, is characterized by comprising two pairs of fixing units (1).
3. The vibration-resistant flexible structure of the converter transformer conservator bracket according to claim 2, wherein the second opening above the arc-shaped groove on the fixing plate (2) is a round hole, and the second opening below the arc-shaped groove is an oblong hole.
4. The vibration-resistant flexible structure of the converter transformer conservator bracket according to any one of claims 1-3, wherein the opening hole on the bolt fixing plate (3) is provided with an internal thread adapted to the bolt (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810568555.4A CN108538550B (en) | 2018-06-05 | 2018-06-05 | Anti-vibration flexible structure of converter transformer oil conservator bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810568555.4A CN108538550B (en) | 2018-06-05 | 2018-06-05 | Anti-vibration flexible structure of converter transformer oil conservator bracket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108538550A CN108538550A (en) | 2018-09-14 |
| CN108538550B true CN108538550B (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810568555.4A Active CN108538550B (en) | 2018-06-05 | 2018-06-05 | Anti-vibration flexible structure of converter transformer oil conservator bracket |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003074126A (en) * | 2001-08-31 | 2003-03-12 | Nippon Steel Corp | High strength bolt connecting structure of h-shaped sectional member having friction damper |
| CN102824211A (en) * | 2012-09-11 | 2012-12-19 | 山东省文登市整骨科技开发有限公司 | Fixing bracket system with stress groove |
| CN203636259U (en) * | 2013-12-06 | 2014-06-11 | 湖南省美程陶瓷科技有限公司 | Welding clamp for electronic ceramic steel pin and tungsten alloy combined die |
| CN208478085U (en) * | 2018-06-05 | 2019-02-05 | 山东电力设备有限公司 | A kind of antivibration flexible structure of converter power transformer oil conservator bracket |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206271509U (en) * | 2016-10-31 | 2017-06-20 | 特变电工衡阳变压器有限公司 | A kind of cabinet pin of transformer oil storage |
-
2018
- 2018-06-05 CN CN201810568555.4A patent/CN108538550B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003074126A (en) * | 2001-08-31 | 2003-03-12 | Nippon Steel Corp | High strength bolt connecting structure of h-shaped sectional member having friction damper |
| CN102824211A (en) * | 2012-09-11 | 2012-12-19 | 山东省文登市整骨科技开发有限公司 | Fixing bracket system with stress groove |
| CN203636259U (en) * | 2013-12-06 | 2014-06-11 | 湖南省美程陶瓷科技有限公司 | Welding clamp for electronic ceramic steel pin and tungsten alloy combined die |
| CN208478085U (en) * | 2018-06-05 | 2019-02-05 | 山东电力设备有限公司 | A kind of antivibration flexible structure of converter power transformer oil conservator bracket |
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| Publication number | Publication date |
|---|---|
| CN108538550A (en) | 2018-09-14 |
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