CN201478060U - Clamping device of transformer yoke - Google Patents
Clamping device of transformer yoke Download PDFInfo
- Publication number
- CN201478060U CN201478060U CN2009203072383U CN200920307238U CN201478060U CN 201478060 U CN201478060 U CN 201478060U CN 2009203072383 U CN2009203072383 U CN 2009203072383U CN 200920307238 U CN200920307238 U CN 200920307238U CN 201478060 U CN201478060 U CN 201478060U
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- yoke
- transformer
- drawstring
- clamping device
- clamping
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Abstract
The utility model provides a clamping device of a transformer yoke, which belongs to the technical field of power equipment and solves the problems of easy insulation damage and local deformation of the yoke of the existing clamping device of the transformer yoke. The clamping device of the transformer yoke comprises two plate-shaped clamping parts which are respectively arranged at both ends of the transformer yoke, a plurality of pulling strips which lead the two clamping parts to clamp the yoke are arranged between the clamping parts, both ends of the pulling strip are respectively connected with the two clamping parts, insulating parts are arranged between the pulling strips and the yoke, insulating cushion blocks matching with the surface shape of the yoke are clamped between the pulling strips and the yoke, and a groove matching with the pulling strip is also arranged on the insulating cushion block. The clamping device of the transformer yoke has the advantages that the clamping force is uniform, the clamping force of the yoke can be effectively controlled, the transformer operation is more stable, and the clamping device is applicable to large transformers.
Description
Technical field
The utility model belongs to electrical equipment technical field, relates to a kind of clamping device of transformer fe yoke.
Background technology
At present, the iron yoke clamping structure of transformer mostly is the rare latitude band structure of alkali-free glass fibre, as shown in Figure 3, this structure is to be used as the drawstring that clamps the iron yoke with the rare latitude band of alkali-free glass fibre, and 9 dozens of covers of rare latitude band are enclosed within on " U " type screw rod 10 of being made by round steel unshakable in one's determination by folder 2 tensions again.Its weak point is: the effect of the rare latitude band 9 of this structure only limits to clamp lamination, and clamping force is limited; Except that window disposed inboard drawstring unshakable in one's determination, the outside is pad pin 11 and upper beam, and clamping force is far short of what is expected, causes inside and outside side tightening force inhomogeneous, to controlling noise and loss unshakable in one's determination certain influence is arranged; The weight of its device body can not bear lifting time of rare latitude band 9 and the load of axial compression winding can only be born by pad pin 11, folder 2 and arm-tie, and it is relatively poor to bear the transformer anti-short circuit capability, is not suitable for high-power transformer.
For this reason, people have designed a kind of clamping device of new transformer fe yoke, as the disclosed a kind of power transformer iron yoke stainless steel drawstring clamping device of Chinese patent (its Granted publication number be CN2938347Y), it comprises flute profile folder, insulating washer, plain washer, spring pad and nut, the upper yoke of transformer and lower yoke between core limb, are provided with the stainless steel drawstring of upper and lower tension front and back grooved folder respectively.The upper and lower of iron yoke all clamps by drawstring, and the clamping dynamics is improved.
Because the iron yoke of transformer is the olive-shaped of middle part broad, drawstring has only the middle part to contact with the iron yoke, have the space between the two ends of drawstring and the iron yoke, so stress surface is little between drawstring and the iron yoke, stress point concentrates on the main sheet unshakable in one's determination, is easy to cause situations such as damage in insulation and iron yoke local deformation.
Summary of the invention
The purpose of this utility model is at existing the problems referred to above in the prior art, and a kind of drawstring has been proposed and core insulation effective, can guarantee simultaneously each grade lamination is played the clamping device of fine transformer fe yoke that must pressuring action.
The purpose of this utility model can realize by following technical proposal: a kind of clamping device of transformer fe yoke, comprise the two boards shape folder that is separately positioned on transformer fe yoke two, be provided with the some drawstrings that two folders are clamped the iron yoke between the folder, two of drawstring is connected with two folders respectively, be provided with insulating part between described drawstring and the iron yoke, it is characterized in that, accompany the cross-over block that is complementary with iron yoke surface configuration between described drawstring and the iron yoke, also have the groove that cooperates with drawstring on the cross-over block.
The transformer fe yoke is formed by stacking by many groups lamination, is the olive-shaped of middle part broad, and the surface of iron yoke is step-like.The side that cross-over block contacts with the iron yoke is stepped, with step-like the fitting like a glove on iron yoke surface, has increased stressed contact-making surface between drawstring and the iron yoke greatly.Two folders are clamping the iron yoke on left and right direction under the effect of drawstring, and the upper and lower of iron yoke is to then utilizing drawstring to clamp simultaneously.
In the clamping device of above-mentioned a kind of transformer fe yoke, described drawstring is the stainless steel round steel.The effect of the various load that produce such as the stainless steel round steel can receiver body lifting force, short circuit in winding electromagnetic force, the effective folder power of control iron yoke simultaneously.
In the clamping device of above-mentioned a kind of transformer fe yoke, described insulating part comprises " U " type cardboard groove and paper tube, and " U " type cardboard groove is equipped with in groove, and paper tube is socketed on the drawstring.Mutually insulated between " U " type cardboard groove and paper tube common guarantee drawstring and the iron yoke.
In the clamping device of above-mentioned a kind of transformer fe yoke, described two folders be arranged in parallel.
In the clamping device of above-mentioned a kind of transformer fe yoke, described drawstring two ends are respectively equipped with insulation cover for seat and steel cover for seat, and described insulation cover for seat is connected with folder with the steel cover for seat.In every drawstring and folder connection place, an end adopts the insulation cover for seat of moulding, and the other end adopts common steel cover for seat to connect.But so just guarantee some ground connection of drawstring and folder, eliminated the circulation that produces because of drawstring and multipoint earthing of clamping piece.
Compared with prior art, the clamping device of this transformer fe yoke utilizes folder and drawstring about the iron yoke, all clamp on the left and right directions, and clamping force is even.By evenly stressed to the iron volume of up and down drawstring and left and right sides folder, formed a rigidity integral body, very strong anti-short circuit capability is arranged, make the transformer operation more stable.Adopt the very high stainless steel round steel of yield strength to make drawstring, can receiver body lifting force, the effect of the various load that produce such as short circuit in winding electromagnetic force, the effective simultaneously folder power of controlling the iron yoke is applicable to high-power transformer.
Description of drawings
Fig. 1 is the structural representation that the transformer fe yoke cooperates with this clamping device in the present patent application.
Fig. 2 is the perspective view that the transformer fe yoke cooperates with this clamping device in the present patent application.
Fig. 3 is the structural representation of transformer fe yoke clamping device in the prior art.
Among the figure, 1, the iron yoke; 1a, main sheet unshakable in one's determination; 1b, secondary pieces unshakable in one's determination; 2, folder; 3, drawstring; 4, insulation cover for seat; 5, steel cover for seat; 6, cross-over block; 61, groove; 7, paper tube; 8, cardboard groove; 9, rare latitude band; 10, screw rod; 11, pad pin.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As shown in Figure 1, the clamping device of this transformer fe yoke 1 comprises the two boards shape folder 2 that is set in parallel in transformer fe yoke 1 two.Iron yoke 1 be equipped with some drawstrings 3 up and down, the two ends of drawstring 3 are connected with two folders 2 respectively, and are respectively equipped with insulation cover for seat 4 and steel cover for seat 5 in the junction.Be lined with the cross-over block 6 that is complementary with iron yoke 1 surface configuration between drawstring 3 and the iron yoke 1, drawstring 3 is pressed on iron yoke 1 surface by cross-over block 6.In the present embodiment, drawstring 3 is the stainless steel round steel.
As shown in Figure 2, have the groove 61 that cooperates with drawstring 3 on the cross-over block 6, drawstring 3 cards are trapped in the cross-over block 6, and the middle part of drawstring 3 is with the paper tube 7 of insulation.And be lined with the cardboard groove 8 of " U " type between drawstring 3 and the cross-over block 6.
Drawstring 3 strides across iron yoke 1, and two is installed insulation cover for seat 4 and steel cover for seat 5 respectively after passing folder 2, by the tension dynamics that the securing member at drawstring 3 two ends is regulated drawstring 3, drawstring 3 is upwards clamped to iron yoke 1 at upper and lower.After the distance between two folders 2 of furthering, can on the left and right direction of iron yoke 1, clamp again iron yoke 1.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (5)
1. the clamping device of a transformer fe yoke, comprise the two boards shape folder (2) that is separately positioned on transformer fe yoke (1) two, be provided with the some drawstrings (3) that two folders (2) are clamped iron yoke (1) between the folder (2), two of drawstring (3) is connected with two folders (2) respectively, be provided with insulating part between described drawstring (3) and the iron yoke (1), it is characterized in that, accompany the cross-over block (6) that is complementary with iron yoke (1) surface configuration between described drawstring (3) and the iron yoke (1), also have the groove (61) that cooperates with drawstring (3) on the cross-over block (6).
2. the clamping device of transformer fe yoke according to claim 1 is characterized in that, described drawstring (3) is the stainless steel round steel.
3. the clamping device of transformer fe yoke according to claim 1 and 2, it is characterized in that, described insulating part comprises " U " type cardboard groove (8) and paper tube (7), and " U " type cardboard groove (8) is equipped with in groove (61), and paper tube (7) is socketed on the drawstring (3).
4. the clamping device of transformer fe yoke according to claim 1 and 2 is characterized in that, described two folders (2) be arranged in parallel.
5. the clamping device of transformer fe yoke according to claim 1 and 2 is characterized in that, described drawstring (3) two ends are respectively equipped with insulation cover for seat (4) and steel cover for seat (5), and described insulation cover for seat (4) is connected with folder (2) with steel cover for seat (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203072383U CN201478060U (en) | 2009-08-01 | 2009-08-01 | Clamping device of transformer yoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203072383U CN201478060U (en) | 2009-08-01 | 2009-08-01 | Clamping device of transformer yoke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201478060U true CN201478060U (en) | 2010-05-19 |
Family
ID=42414318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203072383U Expired - Fee Related CN201478060U (en) | 2009-08-01 | 2009-08-01 | Clamping device of transformer yoke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201478060U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102136363A (en) * | 2010-12-16 | 2011-07-27 | 保定天威集团有限公司 | Guide device for taking guide plate out |
| CN102509605A (en) * | 2011-12-29 | 2012-06-20 | 广东广特电气有限公司 | Asymmetrical clamping structure for yokes of transformer core |
| CN103050237A (en) * | 2012-12-27 | 2013-04-17 | 吴江市变压器厂有限公司 | Clamp-free iron core fastening structure |
| CN103500642A (en) * | 2013-09-26 | 2014-01-08 | 中国西电电气股份有限公司 | Device for preventing silicon steel sheet from being bent in sheet embedding process of ultrahigh voltage transformer |
| CN104934197A (en) * | 2015-06-26 | 2015-09-23 | 镇江天力变压器有限公司 | Clamping and noise reducing structure for epoxy cast dry-type transformer core |
| CN110070979A (en) * | 2019-05-21 | 2019-07-30 | 保定天威保变电气股份有限公司 | A kind of high-power transformer resistance to shorting structure and its resistance to shorting method |
-
2009
- 2009-08-01 CN CN2009203072383U patent/CN201478060U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102136363A (en) * | 2010-12-16 | 2011-07-27 | 保定天威集团有限公司 | Guide device for taking guide plate out |
| CN102509605A (en) * | 2011-12-29 | 2012-06-20 | 广东广特电气有限公司 | Asymmetrical clamping structure for yokes of transformer core |
| CN103050237A (en) * | 2012-12-27 | 2013-04-17 | 吴江市变压器厂有限公司 | Clamp-free iron core fastening structure |
| CN103500642A (en) * | 2013-09-26 | 2014-01-08 | 中国西电电气股份有限公司 | Device for preventing silicon steel sheet from being bent in sheet embedding process of ultrahigh voltage transformer |
| CN104934197A (en) * | 2015-06-26 | 2015-09-23 | 镇江天力变压器有限公司 | Clamping and noise reducing structure for epoxy cast dry-type transformer core |
| CN110070979A (en) * | 2019-05-21 | 2019-07-30 | 保定天威保变电气股份有限公司 | A kind of high-power transformer resistance to shorting structure and its resistance to shorting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20160801 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |