CN201858224U - Connecting structure between metal components - Google Patents
Connecting structure between metal components Download PDFInfo
- Publication number
- CN201858224U CN201858224U CN2010205645946U CN201020564594U CN201858224U CN 201858224 U CN201858224 U CN 201858224U CN 2010205645946 U CN2010205645946 U CN 2010205645946U CN 201020564594 U CN201020564594 U CN 201020564594U CN 201858224 U CN201858224 U CN 201858224U
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- steel plate
- bolt
- linkage structure
- connecting structure
- metal parts
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Abstract
The utility model discloses a connecting structure between metal components, which comprises a bolt. The bolt penetrates through a first steel plate connecting hole and is fixedly connected with a second steel plate, and a gasket and a butterfly spring are sleeved at the root of the bolt. The connecting structure is characterized in that an insulating plate is padded between the first steel plate and the second steel plate, the gasket is an insulating gasket, and an insulating pipe is disposed between the first steel plate connecting hole and the bolt. The connecting structure is applied to power transformers and reactors, and can reduce fault rate of small products during running.
Description
Technical field
The utility model relates to the linkage structure between a kind of metal parts, particularly a kind of linkage structure that prevents that connection part between the metalwork is loosening and produce partial discharge.
Background technique
Along with socio-economic development, electrical network requires to improve constantly to the power equipment quality of product, and the reliability of power equipment performance directly affects electric power netting safe running.Because vibration is bigger during the power equipment operation, not only need mechanical connection between its each parts and also need reliable electric connection, therefore in the power equipment manufacture process, the linkage structure between metal parts is very crucial.If going wrong to produce, the connection between metal parts becomes flexible, electric potential floating, and noise increases and bad connection, causes partial discharge to produce.Influence the security of operation and the working life of equipment.
In order to ensure reliably connecting between parts, directly parts steel plate sled is tight usually with the steel bolt.Fastening force by screw rod reaches mechanical connection and electric connection double action (Fig. 1, Fig. 2).In the schematic structure, power equipment compressing structure steel plate and steel plate part are that face contacts and is rigidly connected, and can effectively clamp power equipment component, and connect by thread and to guarantee the reliability that connects.
But there is hidden danger in this linkage structure, in running, reason owing to long-term vibration, the tight place of steel bolt sled can occur can not effectively be connected with steel plate, produce and seemingly to connect the non-phenomenon that connects, cause bad connection and partial discharge, and the ablation of easily generating heat of screw rod thread place, influence the security of products energy, the safe operation of power equipment is constituted a threat to.
Summary of the invention
The purpose of this utility model is that the highfield in the power equipment, high electric field region connection part are improved, linkage structure between a kind of metal parts is provided, when can guarantee the effective mechanical connection of power equipment, reliably connecting by ground wire again after the insulation between the parts, mechanical connection and electric connection are separated, guarantee that two kinds connect reliable simultaneously.
For reaching above purpose, the utility model takes following technological scheme to be achieved:
Linkage structure between a kind of metal parts, comprise the bolt that passes the first steel plate attachment hole and connect firmly with second steel plate, bolt root is with packing ring and butterfly spring, it is characterized in that, fill up insulation board between described first steel plate and second steel plate, described packing ring is an insulating washer, is provided with insulation tube between the first steel plate attachment hole and the bolt.
In the such scheme, described first steel plate enlarges with the attachment hole aperture at pad insulation board surface of contact place.Increase ground wire between described first steel plate and second steel plate.
Take above-mentioned linkage structure, can thoroughly solve power equipment unreliable contact problem between steel plate and the steel plate between parts in running, avoided the generation of local superheating and partial discharge.The power equipment reliability of operation is improved a lot.
Description of drawings
Fig. 1 Fig. 2 is the linkage structure between existing a kind of metal parts.Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 Fig. 4 is a linkage structure of the present utility model.Fig. 4 is the A-A sectional view of Fig. 3.
Among Fig. 1 to Fig. 4: 1, bolt; 2, butterfly spring; 3, Steel Washer; 3 ', insulating washer; 4,5, steel plate; 6, insulation tube; 7, ground wire; 8, insulation board
Embodiment
As shown in Figure 3, Figure 4, the linkage structure between a kind of metal parts, at first pad insulation board 8 between parts steel plate 4 and steel plate 5 is opened both insulation, avoids seemingly connecing the non-phenomenon that connects.Then root is with the attachment hole insulation of connecting bolt 1 usefulness insulation tube 6 with the steel plate 4 of butterfly spring 2 and insulating washer 3 ', is connected with steel plate 5 again, avoid multipoint earthing.For increasing the reliability of insulation, steel plate 4 attachment holes are enlarged with pad insulation board 8 surface of contact places, increase insulation distance (Fig. 4).Between steel plate 4 and steel plate 5, increase ground wire 7, improve the reliability of electric connection.
Between the rigidity parts connect, increase seal and reliable connecting line, satisfying under the prerequisite of manufacturing process, have characteristics such as simple for structure, reliability height, no partial discharge phenomenon, improved the quality and the technology content of product.This structure is applied to power transformer and reactor product, can reduces the rate of fault that product is in operation.
Claims (3)
1. the linkage structure between a metal parts, comprise the bolt that passes the first steel plate attachment hole and connect firmly with second steel plate, bolt root is with packing ring and butterfly spring, it is characterized in that, fill up insulation board between described first steel plate and second steel plate, described packing ring is an insulating washer, is provided with insulation tube between the first steel plate attachment hole and the bolt.
2. the linkage structure between metal parts as claimed in claim 1 is characterized in that, described first steel plate enlarges with the attachment hole aperture at pad insulation board surface of contact place.
3. the linkage structure between metal parts as claimed in claim 1 is characterized in that, increases ground wire between described first steel plate and second steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205645946U CN201858224U (en) | 2010-10-15 | 2010-10-15 | Connecting structure between metal components |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205645946U CN201858224U (en) | 2010-10-15 | 2010-10-15 | Connecting structure between metal components |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201858224U true CN201858224U (en) | 2011-06-08 |
Family
ID=44104031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205645946U Expired - Lifetime CN201858224U (en) | 2010-10-15 | 2010-10-15 | Connecting structure between metal components |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201858224U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104581A (en) * | 2011-11-11 | 2013-05-15 | 沃尔沃汽车公司 | Screw assembly element |
| CN111801759A (en) * | 2017-12-15 | 2020-10-20 | Abb瑞士股份有限公司 | Fixing system for medium-voltage or high-voltage switching poles |
| EP3800361A1 (en) * | 2019-10-02 | 2021-04-07 | Siemens Aktiengesellschaft | Anchoring unit, method for fixing an installation with an anchoring unit and installation unit with anchoring unit |
| CN112735778A (en) * | 2020-12-28 | 2021-04-30 | 宁波宁变电力科技股份有限公司 | Insulation structure for avoiding circulation in reactance switching process of large-sized starting autotransformer |
| CN113294639A (en) * | 2021-05-21 | 2021-08-24 | 芜湖华族环境技术股份有限公司 | Shovel piece formula pottery PTC metal installing support structure |
-
2010
- 2010-10-15 CN CN2010205645946U patent/CN201858224U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104581A (en) * | 2011-11-11 | 2013-05-15 | 沃尔沃汽车公司 | Screw assembly element |
| CN111801759A (en) * | 2017-12-15 | 2020-10-20 | Abb瑞士股份有限公司 | Fixing system for medium-voltage or high-voltage switching poles |
| EP3800361A1 (en) * | 2019-10-02 | 2021-04-07 | Siemens Aktiengesellschaft | Anchoring unit, method for fixing an installation with an anchoring unit and installation unit with anchoring unit |
| WO2021063633A1 (en) * | 2019-10-02 | 2021-04-08 | Siemens Energy Global GmbH & Co. KG | Anchoring unit, method for fastening a system to an anchoring unit, and system unit with anchoring unit |
| CN114502847A (en) * | 2019-10-02 | 2022-05-13 | 西门子能源环球有限责任两合公司 | Anchoring unit, method for fastening a device with an anchoring unit and device unit with an anchoring unit |
| CN114502847B (en) * | 2019-10-02 | 2024-04-05 | 西门子能源环球有限责任两合公司 | Anchoring unit, method for fastening a device having an anchoring unit, and device unit having an anchoring unit |
| CN112735778A (en) * | 2020-12-28 | 2021-04-30 | 宁波宁变电力科技股份有限公司 | Insulation structure for avoiding circulation in reactance switching process of large-sized starting autotransformer |
| CN113294639A (en) * | 2021-05-21 | 2021-08-24 | 芜湖华族环境技术股份有限公司 | Shovel piece formula pottery PTC metal installing support structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110608 |