CN201112092Y - Non-encapsulated dry-type transformer coil axial direction pressing device - Google Patents
Non-encapsulated dry-type transformer coil axial direction pressing device Download PDFInfo
- Publication number
- CN201112092Y CN201112092Y CNU2007200460091U CN200720046009U CN201112092Y CN 201112092 Y CN201112092 Y CN 201112092Y CN U2007200460091 U CNU2007200460091 U CN U2007200460091U CN 200720046009 U CN200720046009 U CN 200720046009U CN 201112092 Y CN201112092 Y CN 201112092Y
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- China
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- clamping piece
- cushion block
- piece
- upper clamping
- yoke cushion
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- Expired - Fee Related
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Abstract
The utility model discloses an axial hold-down device for a non-encapsulated dry-type transformer, comprising an upper yoke spacer block, a lower yoke spacer block, an upper clamping-piece, a lower clamping-piece and a pull rod. The upper yoke spacer block and the lower yoke spacer block are positioned at the inner sides of the upper clamping-piece and the lower clamping-piece; two ends of the pull rod are respectively connected with the upper clamping-piece and the lower clamping-piece; a press stud with thread used for regulating the distance between the upper yoke spacer block and the upper clamping-piece is arranged between the upper clamping-piece and the upper yoke spacer block; the press stud is provided with a nut; a hold-down plate is also arranged on the upper yoke spacer block; a lower end of the press stud is arranged in a slot of the hold-down plate, the shape of the slot of the hold-down plate is matched with that of the lower end of the press stud. Compared with the prior art, the axial hold-down device of the utility model optimizes the structural design of the product, improves the mechanical strength of the non-encapsulated dry-type transformer when in use, and can mitigate the damage to the transformer structure caused by mechanical force when a sudden short circuit occurs, thus enhancing safety and reliability of the non-encapsulated dry-type transformer.
Description
Technical field
The utility model belongs to the transformer accessory technical field, particularly a kind of high-tension coil axial pressing device of the big capacity of no-encapsulated-winding dry-type transformer that is applicable to.
Background technology
The coil axial pressing device of existing no-encapsulated-winding dry-type transformer routine comprises draw ring that is arranged on the upper clamping piece top and the nut that is used with draw ring, the pin of this draw ring and arm-tie upper end links, the pin and the lower clamping piece of arm-tie bottom link, during use, nut on the turn draw ring, thereby pressure is passed to yoke cushion block and following yoke cushion block through upper clamping piece and lower clamping piece by arm-tie, give coil axial force transmission by last yoke cushion block and following yoke cushion block more at last, thereby formed the coil axial pressing device of no-encapsulated-winding dry-type transformer.This pin configuration is arranged compact, safety, can fully guarantee product reliability service under this electric pressure.Along with pushing forward comprehensively of China's modernization, the urbanization degree further strengthens, and particularly big city and super large city are densely populated, and industry and commerce is concentrated, and power load is high, thereby big capacity, voltage levels transformer are directly goed deep into the urban district load center.Continuous increase along with transformer capacity, and the influence of mains by harmonics electric current, the sudden short circuit mechanical force that product bore also further increases, and the axial pressing device that the face face that original coil only relies on yoke cushion block upper and lower faces to compress to connect compresses can not fully guarantee transformer safe and reliable operation under this abominable running environment.
Summary of the invention
Technical problem to be solved in the utility model is the deficiency that exists at above-mentioned prior art, and a kind of no-encapsulated-winding dry-type transformer coil axial pressing device safe and reliable to operation is provided.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: comprise yoke cushion block, following yoke cushion block, upper clamping piece, lower clamping piece and pull bar, last yoke cushion block and following yoke cushion block are positioned at the inboard of upper clamping piece and lower clamping piece, the two ends of pull bar link to each other with lower clamping piece with upper clamping piece respectively, between described upper clamping piece and last yoke cushion block, also be provided with the threaded pressure nail that is used to regulate yoke cushion block and upper clamping piece spacing, nail in pressure and be provided with a nut.
Also be provided with pressing plate on the yoke cushion block on described, the lower end that described pressure is followed closely is arranged in the groove of pressing plate, and the shape of this pressing plate groove is suitable with the shape of pressing the nail lower end, when turn and pressure nail nut engaged, press the nail lower end to stretch in the pressing plate groove, prevent to rotate simultaneously with nut.
Described nut also can be fixedlyed connected with upper clamping piece, and the lower end of described pressure nail contacts with last yoke cushion block, presses nail by turn, thereby the distance of reconciling between upper clamping piece and the last yoke cushion block compresses coil.
Compared with prior art, the utility model is cylinder lever connecting rod between folder from top to bottom, at the inboard yoke cushion block up and down that is provided with of folder from top to bottom, between folder and cushion block, be connected one when regulating folder and pressing nail and nut structure to make, formed arm-tie, upper clamping piece, go up the yoke cushion block, at the axial pressing device of the coil between the yoke cushion block, following yoke cushion block, lower clamping piece up and down at the turn nut with the screw thread of cushion block distance.The utility model has been optimized the structural design of product, in use, improved the mechanical strength of no-encapsulated-winding dry-type transformer, when running into sudden short circuit, can alleviate the destruction of mechanical force, improve fail safe, the reliability of no-encapsulated-winding dry-type transformer transformer device structure.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the I portion enlarged drawing of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated.As shown in Figure 1 and Figure 2, arm-tie 1 upper end and bottom link with upper clamping piece 2 and lower clamping piece 7 respectively by pin 6, have threaded pressure nail 3 to connect on upper clamping piece 2; Press nut 9 on the nail 3 by turn, adjust the distance of yoke cushion block 4 and following yoke cushion block 8 and coil 5 upper and lower end parts, formed arm-tie 1, upper clamping piece 2, the last axial pressing device of yoke cushion block 4, coil 5, following yoke cushion block 8, lower clamping piece 7.Press the upper end of nail 3 to be fixed in the hole of upper clamping piece 2 relevant positions, then last yoke cushion block 4 is put in to press and follows closely below, 3 positions, press the bottom of nail 3 to withstand in the slotted hole of yoke cushion block 4 top hold-downs, make that pressure nail 3 is relative with pressing plate static under the effect of torsion.Nut 9 also can directly be welded on the upper clamping piece 2, presses nail 3 and the supporting use of nut, presses the bottom of nail 3 to withstand yoke cushion block 4, presses nail 3 by turn, and the distance of regulating between upper clamping piece 2 and the last yoke cushion block 4 compresses coil 5.Treat that product final assemble finishes last adjusting the in back and is fixed in the axial compression that the nut 9 of pressing on the nail 3 is realized coil.
Claims (3)
1, a kind of no-encapsulated-winding dry-type transformer coil axial pressing device, comprise yoke cushion block (4), following yoke cushion block (8), upper clamping piece (2), lower clamping piece (7) and pull bar (1), last yoke cushion block (4) and following yoke cushion block (8) are positioned at the inboard of upper clamping piece (2) and lower clamping piece (7), the two ends of pull bar (1) link to each other with lower clamping piece (7) with upper clamping piece (2) respectively, it is characterized in that between described upper clamping piece (2) and last yoke cushion block (4), also being provided with the threaded pressure nail (3) that is used to regulate yoke cushion block (4) and upper clamping piece (2) spacing, press nail (3) to be provided with a nut (9).
2, transformer coil axial pressing device according to claim 1, it is characterized in that also being provided with pressing plate on the yoke cushion block (4) on described, the lower end of described pressure nail (3) is arranged in the groove of pressing plate, and the shape of this pressing plate groove is suitable with the shape of pressing nail (3) lower end.
3, transformer coil axial pressing device according to claim 1 is characterized in that described nut (9) fixedlys connected with upper clamping piece (2), and the lower end of described pressure nail (3) contacts with last yoke cushion block (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200460091U CN201112092Y (en) | 2007-09-11 | 2007-09-11 | Non-encapsulated dry-type transformer coil axial direction pressing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200460091U CN201112092Y (en) | 2007-09-11 | 2007-09-11 | Non-encapsulated dry-type transformer coil axial direction pressing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201112092Y true CN201112092Y (en) | 2008-09-10 |
Family
ID=39963837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200460091U Expired - Fee Related CN201112092Y (en) | 2007-09-11 | 2007-09-11 | Non-encapsulated dry-type transformer coil axial direction pressing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201112092Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964240A (en) * | 2010-09-08 | 2011-02-02 | 济南变压器集团股份有限公司 | Axial compaction device of power transformer |
| CN102723178A (en) * | 2012-06-11 | 2012-10-10 | 常熟市常源变压器有限公司 | Axial pre-tightening mechanism for transformer |
| CN104078213A (en) * | 2014-07-11 | 2014-10-01 | 江苏华鹏变压器有限公司 | Air reactor body structure |
| CN106098353A (en) * | 2016-08-18 | 2016-11-09 | 吴江变压器有限公司 | A kind of Transformer Winding hold down gag |
| CN108711495A (en) * | 2018-06-20 | 2018-10-26 | 河南森源电气股份有限公司 | A kind of electrical equipment and its damping compression spring unit |
-
2007
- 2007-09-11 CN CNU2007200460091U patent/CN201112092Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964240A (en) * | 2010-09-08 | 2011-02-02 | 济南变压器集团股份有限公司 | Axial compaction device of power transformer |
| CN102723178A (en) * | 2012-06-11 | 2012-10-10 | 常熟市常源变压器有限公司 | Axial pre-tightening mechanism for transformer |
| CN104078213A (en) * | 2014-07-11 | 2014-10-01 | 江苏华鹏变压器有限公司 | Air reactor body structure |
| CN106098353A (en) * | 2016-08-18 | 2016-11-09 | 吴江变压器有限公司 | A kind of Transformer Winding hold down gag |
| CN108711495A (en) * | 2018-06-20 | 2018-10-26 | 河南森源电气股份有限公司 | A kind of electrical equipment and its damping compression spring unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA ELECTRIC EQUIPMENT(JIANGSU) CO., LTD Free format text: FORMER OWNER: ZHONGDIAN ELECTRIC GROUP CO., LTD. Effective date: 20100726 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 212200 ZHONGDIAN STREET, YANGZHONG CITY DEVELOPMENT ZONE, JIANGSU PROVINCE TO: 212200 ZHONGDIAN STREET, YANGZHONG CITY, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100726 Address after: 212200 CLP Road, Yangzhong, Jiangsu Patentee after: CEEG (Jiangsu) Co., Ltd. Address before: 212200 central electric road, Yangzhong Development Zone, Jiangsu Patentee before: Zhongdian Electric Group Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080910 Termination date: 20100911 |