CN2746509Y - Overtravel spring combiner for outdoor AC high-voltage vacuum circuit breaker - Google Patents
Overtravel spring combiner for outdoor AC high-voltage vacuum circuit breaker Download PDFInfo
- Publication number
- CN2746509Y CN2746509Y CN 200420109712 CN200420109712U CN2746509Y CN 2746509 Y CN2746509 Y CN 2746509Y CN 200420109712 CN200420109712 CN 200420109712 CN 200420109712 U CN200420109712 U CN 200420109712U CN 2746509 Y CN2746509 Y CN 2746509Y
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- China
- Prior art keywords
- spring
- vacuum circuit
- circuit breaker
- overtravel
- springs
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- Expired - Fee Related
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model provides an overtravel spring combiner for outdoor alternating current high-voltage vacuum circuit breaker, comprising an overtravel spring upper pull rod which is connected with the moving conducting rod of a vacuum circuit-breaker, an overtravel spring lower pull rod which is sheathed with the upper pull rod, and springs are sheathed out of the pull rods. Both ends of the springs are respectively provided with a spring bearing plate and a spring cover plate. The springs are double layers of combined cylindrically helical compression springs, and the rotational directions of the two springs are opposite. A guiding device is lined at the site where the upper pull rod and the lower pull rod are sheathed, and a spring limiting device adopts the manner of additionally providing a holding screw below a shaft pin. The overtravel spring combiner for outdoor alternating current high-voltage vacuum circuit breaker which is used for the transmission system of a vacuum circuit breaker can effectively reduce the closing bouncing time of the vacuum circuit breaker, improve the initial opening speed, reduce the arcing time, improve the recover speed of medium, and improve the electrical endurance of an arc-extinguishing chamber. The overtravel spring combiner for outdoor alternating current high-voltage vacuum circuit breaker has the advantages of small size, light weight, simple structure and reliable performance.
Description
Technical field
The utility model relates to the high pressure or the high-current switch technical field of band arc extinguishing or flash guard, especially relates to overtravel spring assembly wherein.
Background technology
For preventing switch-on trip of vacuum circuit breaker, on drive link, be provided with the overtravel spring, the overtravel spring of the outdoor high-voltage vacuum breaker of present domestic use exists following problem: the one, all adopt single spring structure, spring steel wire is thicker, weight is heavier, volume is also bigger, so cause the conducting bracket cavity volume also to want corresponding increase, has influenced the miniaturization of product; The 2nd, spring is not added guider, the skew of telescopic spring direction easily causes vacuum interrupter to be subjected to extra-stress, makes arc control device moving contact movement locus not on the axle center of arc control device, and the vacuum interrupter moving contact is freely stiff, has the bite phenomenon; The 3rd, the spacing employing pivot pin of spring adds the split pin limit method, the gap is big, assembly precision is low, cause the prolongation of switch-on trip of vacuum circuit breaker time, in the closing rebound process, the contact break distance is little, electric arc can not extinguish, and causes the contact electrical wear to increase the weight of, and has shortened the useful life of vacuum circuit-breaker.
Summary of the invention
The purpose of this utility model is for addressing the above problem, and the overtravel spring assembly device of a kind of simple in structure, dependable performance, outdoor AC high-voltage vacuum circuit-breaker easy for installation is provided.
For achieving the above object, the technical solution adopted in the utility model is such: a kind of overtravel spring assembly device of outdoor AC high-voltage vacuum circuit-breaker, comprise the overtravel spring upper connecting rod that the moving conductive rod with vacuum circuit-breaker joins, and with the upper connecting rod socket overtravel spring lower link, the spring that rod outer sleeve is established, both ends of the spring have spring supporting plate and spring bumper cover to be located respectively; Said spring is the cylindroid helical-coil compression spring of double-deck combination, and for guaranteeing the concentric relation of cluster spring, it is crooked to prevent that the ectonexine spring from producing, and the rotation direction of two springs is opposite, i.e. dextrorotation, and another is left-handed, and is provided with guider; The spring stopping means is to adopt under the pivot pin to add the holding screw mode, to improve assembly precision, the gap of reducing transmission link.
Owing to adopted technique scheme, the overtravel spring assembly device of outdoor AC high-voltage vacuum circuit-breaker of the present utility model, have characteristics simple in structure, dependable performance, can be under equal load-up condition, the spring steel wire diameter more used than general overtravel spring is little, weight is also lighter, volume-diminished; The guider that is provided with can guarantee arc control device moving contact movement locus on the arc control device axle center, and the vacuum interrupter moving contact the bite phenomenon can not occur; And assembly precision is improved; Thereby the combined floodgate that can reduce vacuum circuit-breaker is effectively beated the time, reduce the electrical wear amount of contact, make contact after electrical wear, still can keep certain contact pressure, when the contact separating brake, moving contact can obtain bigger initial kinetic energy and break the melting welding point, improves initial opening velocity, reduce the arcing time, improve the resume speed of medium, therefore can improve the short circuit current connecting-disconnecting function of vacuum interrupter, the electric life of raising arc control device, make the performance of high-pressure vacuum breaker that assurance arranged.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Accompanying drawing is a structural representation of the present utility model.
Among the figure: 1, overtravel spring upper connecting rod, 2, spring bumper cover, 3, spring supporting plate, 4, outer spring, 5, internal layer spring, 6, spring supporting plate, 7, spring bumper cover, 8, guider, 9, the spring pivot pin, 10, holding screw 11, overtravel spring lower link.
Embodiment
The contrast accompanying drawing, the overtravel spring assembly device of a kind of outdoor AC high-voltage vacuum circuit-breaker of the present utility model, comprise overtravel spring upper connecting rod 1 that the moving conductive rod with vacuum circuit-breaker joins, and and the overtravel spring lower link 11 of upper connecting rod socket, the spring that rod outer sleeve is established, both ends of the spring have spring supporting plate 3,6 and spring bumper cover 2,7 to be located respectively; Said spring is the cylindroid helical-coil compression spring by outer spring 4 and the 5 double-deck combinations of internal layer spring, for guaranteeing the concentric relation of cluster spring, it is crooked to prevent that the ectonexine spring from producing, the rotation direction of two springs is opposite, i.e. dextrorotation, another is left-handed, and the socket place between last lower link is lined with guider 8; Said socket of going up lower link is fixing by pivot pin 9, and spacing to spring, and for improving assembly precision, the gap of reducing transmission link, the location of pivot pin 9 are to adopt holding screw 10 modes.
Claims (1)
1, a kind of overtravel spring assembly device of outdoor AC high-voltage vacuum circuit-breaker, comprise the overtravel spring upper connecting rod (1) that the moving conductive rod with vacuum circuit-breaker joins, reach overtravel spring lower link (11) with the upper connecting rod socket, the spring that rod outer sleeve is established, both ends of the spring has spring supporting plate (3 respectively, 6) and spring bumper cover (2,7), it is characterized in that: said spring is the cylindroid helical-coil compression spring by outer spring (4) and the double-deck combination of internal layer spring (5), the rotation direction of two springs is opposite, i.e. dextrorotation, another is left-handed, and the socket place between last lower link is lined with guider (8); Said socket of going up lower link is fixing by pivot pin (9), and spacing to spring, and the location of pivot pin (9) is to adopt holding screw (10) mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420109712 CN2746509Y (en) | 2004-11-07 | 2004-11-07 | Overtravel spring combiner for outdoor AC high-voltage vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420109712 CN2746509Y (en) | 2004-11-07 | 2004-11-07 | Overtravel spring combiner for outdoor AC high-voltage vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2746509Y true CN2746509Y (en) | 2005-12-14 |
Family
ID=35583086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420109712 Expired - Fee Related CN2746509Y (en) | 2004-11-07 | 2004-11-07 | Overtravel spring combiner for outdoor AC high-voltage vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2746509Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106098466A (en) * | 2016-07-11 | 2016-11-09 | 中国电力科学研究院 | Bearing pin and there is the touch spring device of this bearing pin |
| CN106783372A (en) * | 2017-01-16 | 2017-05-31 | 北京中车赛德铁道电气科技有限公司 | A kind of apparatus and method of the reduction contact bounce for vacuum circuit breaker |
| CN108198727A (en) * | 2018-02-05 | 2018-06-22 | 安徽徽电科技股份有限公司 | A kind of vortex driving breaker based on vacuum extinction |
| CN109087833A (en) * | 2018-08-31 | 2018-12-25 | 宁波耀华电气科技有限责任公司 | A kind of Monostable permanent magnetism operating mechanism |
| CN117690752A (en) * | 2024-02-02 | 2024-03-12 | 广东正超电气有限公司 | Over-travel setting method for permanent magnet vacuum circuit breaker |
-
2004
- 2004-11-07 CN CN 200420109712 patent/CN2746509Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106098466A (en) * | 2016-07-11 | 2016-11-09 | 中国电力科学研究院 | Bearing pin and there is the touch spring device of this bearing pin |
| CN106783372A (en) * | 2017-01-16 | 2017-05-31 | 北京中车赛德铁道电气科技有限公司 | A kind of apparatus and method of the reduction contact bounce for vacuum circuit breaker |
| CN106783372B (en) * | 2017-01-16 | 2018-11-20 | 北京中车赛德铁道电气科技有限公司 | A kind of device and method of the reduction contact bounce for vacuum circuit breaker |
| CN108198727A (en) * | 2018-02-05 | 2018-06-22 | 安徽徽电科技股份有限公司 | A kind of vortex driving breaker based on vacuum extinction |
| CN109087833A (en) * | 2018-08-31 | 2018-12-25 | 宁波耀华电气科技有限责任公司 | A kind of Monostable permanent magnetism operating mechanism |
| CN117690752A (en) * | 2024-02-02 | 2024-03-12 | 广东正超电气有限公司 | Over-travel setting method for permanent magnet vacuum circuit breaker |
| CN117690752B (en) * | 2024-02-02 | 2024-04-09 | 广东正超电气有限公司 | Over-travel setting method for permanent magnet vacuum circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051214 Termination date: 20121107 |