CN201725700U - High-voltage circuit-breaker - Google Patents
High-voltage circuit-breaker Download PDFInfo
- Publication number
- CN201725700U CN201725700U CN2010202534814U CN201020253481U CN201725700U CN 201725700 U CN201725700 U CN 201725700U CN 2010202534814 U CN2010202534814 U CN 2010202534814U CN 201020253481 U CN201020253481 U CN 201020253481U CN 201725700 U CN201725700 U CN 201725700U
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- CN
- China
- Prior art keywords
- splined shaft
- spline housing
- connecting lever
- spline
- crank arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 23
- 238000009413 insulation Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000001568 sexual effect Effects 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model discloses a high-voltage circuit-breaker, which includes insulation pull rods provided respectively to the three-phase movable contacts, wherein each insulation pull rod is correspondingly hinged with an inner crank arm, each inner crank arm is radially fixed on the correspondingly setup spline shaft through a spline fit structure, an inner crank arm includes a spline housing packaged on the splined shaft, the external circumstance surface of the spline housing is in radial extension and provided with a connecting arm connected to the insulation pull rod, openings are axially provided on the cover wall of the spline housing, the connecting bolt identical to the connecting bolt for clamping the splined shaft is arranged between the opposite two ends on the opening. The utility model overcomes the oversized fit clearance problem in the prior art, so that the power transmission waste is small and the transmission efficiency is simultaneously greatly improved without increasing the production cost during switching on and off operations, and so that the breaker stroke, clearance, velocity, synchronization and the like mechanical characteristic requirements are easily realized and ensured, and the sexual valence is comparatively high.
Description
Technical field
The utility model relates to a kind of primary cut-out.
Background technology
Existing primary cut-out transmission mechanism as shown in Figure 1, it comprises the three-phase moving contact that is set up in parallel along straight line, be connected with insulated tension pole 16 on each moving contact respectively, each insulated tension pole 16 correspondence is connected with interior connecting lever 15, interior connecting lever 15 is hinged with corresponding insulated tension pole 16, connecting lever 15 is coaxial respectively in each is fixed with outer connecting lever 12, interior connecting lever 15 radially is fixed on the splined shaft 14 by spline fitted respectively with corresponding outer connecting lever 12, be in transmission connection by the interpolar connecting rod 13 that is hinged on the connecting lever two ends respectively between the adjacent outer connecting lever 12, adjacent outer connecting lever 12 forms parallelogram sturcutre with interpolar connecting rod 13, is hinged with the main transmission pull bar 11 that is in transmission connection with operating mechanism on the outer connecting lever 12 in the middle of the corresponding therein circuit breaker on the splined shaft 14 of moving contact setting.During its work, be positioned at the middle outer connecting lever 12 of isolating switch by operating mechanism by 11 drivings of main transmission pull bar, it is left and right respectively mobile that the outer connecting lever 12 of main transmission pull bar 11 by the centre that is in transmission connection with it promotes to be hinged on the interpolar connecting rod 13 at these outer connecting lever 12 two ends, interpolar connecting rod 13 drives outer connecting lever 12 rotations that the opposite ends moving contact is provided with respectively, each outer connecting lever 12 drives the coaxial with it interior connecting lever that is connected 15 respectively and rotates, promote corresponding insulation pull bar 16 upper and lower actions separately, drive corresponding moving contact and finish circuit breaker branch, making process.Connecting lever and splined shaft adopt spline fitted commonly used to come transmission power and angular displacement campaign in this primary cut-out, but this kind cooperation is because of the restriction of processing technology and cost, the problem that often has excesssive gap, power transmission loss is obvious, especially problem is outstanding for a long time for transmission link, thereby have influence on each moving contact of circuit breaker stroke, open a series of mechanical properties of distance, speed, the same period etc., reduce the reliability of primary cut-out.When requiring power transmission loss hour, just must improve requirement to the spline machining accuracy, not only increase production cost, and comparatively difficulty is installed, generally be difficult to the effect that reaches more satisfactory.
The utility model content
The purpose of this utility model is: the primary cut-out that provide a kind of power transmission loss of its transmission mechanism little, production cost is low.
The technical solution of the utility model is: a kind of primary cut-out, the insulated tension pole of its three-phase moving contact is hinged on corresponding interior connecting lever front end respectively, the rear end of connecting lever is respectively by the splined shaft interference assembling of spline housing with corresponding setting in each, axially offer opening on the jacket wall of described spline housing, be provided with between relative two ends on the opening and be same as the connecting bolt that clamps splined shaft.
Two of corresponding opening ends are radially extended respectively and are provided with linkage section on the outer peripheral face of described spline housing, are parallel to each other between two linkage sections, and described connecting bolt is installed between the two corresponding linkage sections.
The utility model is by offering axial opening and interior connecting lever being clamped and installed on the corresponding splined shaft by the connecting bolt that is arranged on the opening on the spline housing on the interior connecting lever, it need not to improve machining accuracy and realizes the cooperation of no gap between connecting lever and the corresponding splined shaft in can making, not only easy for installation, and reduced processing cost, make circuit breaker divide simultaneously, during closing operation, slippage is little, when not increasing production cost, improved transmission efficiency greatly, also make the stroke of circuit breaker, open distance, speed, mechanical properties such as the same period require to realize easily and guarantee that cost performance is higher.
Description of drawings
Fig. 1 is the transmission mechanism structural representation of this existing primary cut-out;
Fig. 2 is the structural representation of transmission mechanism in the concrete enforcement of the utility model;
Fig. 3 be among Fig. 1 in the syndeton schematic diagram of connecting lever and splined shaft.
Embodiment
As Fig. 2, shown in Figure 3, primary cut-out of the present utility model comprises each the single-phase disconnect 6 that is set up in parallel along straight line, be connected with insulated tension pole 7 on the moving contact of each single-phase disconnect 6 respectively, the lower end of each insulated tension pole 7 is hinged on the front end of corresponding interior connecting lever 5 respectively, connecting lever 5 radially is fixed on the middle part of the corresponding splined shaft 4 that is provided with in each by the spline fitted syndeton, connecting lever 5 comprises the spline housing 51 that is sleeved on the splined shaft 4 in each, be axially arranged with the spline that cooperates with splined shaft 4 on the interior circle of spline housing 51, on the cylindrical of spline housing 51, radially extend and be provided with the linking arm hinged with corresponding insulated tension pole 7, on the jacket wall of spline housing 51, axially offer an opening, spline housing 51 is positioned at this opening part and forms two relative ends, corresponding these two relative ends are radially extended respectively and are provided with linkage section 52 on the cylindrical of spline housing 51,53, at two linkage sections 52, be coated with fishbolt 54 between 53.
On the splined shaft 4 that corresponding each single-phase disconnect 6 is provided with, be in transmission connection by parallel four-bar linkage respectively in the primary cut-out of present embodiment, wherein, an end of corresponding splined shaft is in transmission connection with the left splined shaft 4 mutually of interpolar connecting rod 3 and primary cut-out by outer connecting lever 2 in the primary cut-out, the other end of corresponding splined shaft is in transmission connection with the right splined shaft 4 mutually of interpolar connecting rod 3 and primary cut-out by outer connecting lever 2 in the primary cut-out, is connected with the main transmission pull bar 1 that is connected with operating mechanism in primary cut-out on the outer connecting lever 2 of phase splined shaft 4 one ends.
During installation, by normal inside and outside spline fitted installation method, with interior connecting lever and splined shaft by correct angle or accordingly to the tooth mark, be installed together, with fishbolt 3 interior connecting lever 2 is clamped and installed on the splined shaft 4 then, so just can need not to improve machining accuracy and promptly can cancel gap between spline housing and the splined shaft, when transmitting the angular displacement campaign, can reduce the wastage greatly, on the basis that need not increase cost, improve transmission efficiency, even use when having certain wearing and tearing because of long-term between interior connecting lever and the splined shaft, only need screw connecting bolt and can continue to clamp the elimination gap, make prolong greatly the useful life of corresponding parts, reduce the maintenance cost of primary cut-out.The interpolar that this structure also can be used on circuit breaker connects, and links to each other with splined shaft with the outer connecting lever of connecting lever structure in similar, and the elimination gap affects can further improve the three-phase divide-shut brake synchronism of circuit breaker.
Claims (2)
1. primary cut-out, the insulated tension pole of its three-phase moving contact is hinged on corresponding interior connecting lever front end respectively, the rear end of connecting lever is respectively by the splined shaft interference assembling of spline housing with corresponding setting in each, it is characterized in that, axially offer opening on the jacket wall of described spline housing, be provided with between relative two ends on the opening and be same as the connecting bolt that clamps splined shaft.
2. primary cut-out according to claim 1, it is characterized in that, two of corresponding opening ends are radially extended respectively and are provided with linkage section on the outer peripheral face of described spline housing, are parallel to each other between two linkage sections, and described connecting bolt is installed between the two corresponding linkage sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202534814U CN201725700U (en) | 2010-07-09 | 2010-07-09 | High-voltage circuit-breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202534814U CN201725700U (en) | 2010-07-09 | 2010-07-09 | High-voltage circuit-breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201725700U true CN201725700U (en) | 2011-01-26 |
Family
ID=43494048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202534814U Expired - Fee Related CN201725700U (en) | 2010-07-09 | 2010-07-09 | High-voltage circuit-breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201725700U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104362028A (en) * | 2014-11-26 | 2015-02-18 | 大连高压开关电器有限公司 | Two-arm pull rod transmission mechanism for isolating switches |
| EP3086341A1 (en) * | 2015-04-20 | 2016-10-26 | General Electric Technology GmbH | Main shaft for the operation mechanism of a circuit breaker |
| CN106158502A (en) * | 2016-09-07 | 2016-11-23 | 华仪电气股份有限公司 | Outdoor railway single-pole vacuum circuit breaker |
| CN106653425A (en) * | 2016-12-30 | 2017-05-10 | 浙江华仪电器科技有限公司 | Switch structure |
| CN108594107A (en) * | 2018-01-04 | 2018-09-28 | 国网天津市电力公司电力科学研究院 | Comprehensive tester for breaker loop resistor experiment and mechanical characteristic test |
| CN112259407A (en) * | 2020-09-30 | 2021-01-22 | 西安交通大学 | Three-phase linkage on-off transmission retaining device of high-voltage rapid vacuum switch and working method |
-
2010
- 2010-07-09 CN CN2010202534814U patent/CN201725700U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104362028A (en) * | 2014-11-26 | 2015-02-18 | 大连高压开关电器有限公司 | Two-arm pull rod transmission mechanism for isolating switches |
| EP3086341A1 (en) * | 2015-04-20 | 2016-10-26 | General Electric Technology GmbH | Main shaft for the operation mechanism of a circuit breaker |
| WO2016169878A1 (en) * | 2015-04-20 | 2016-10-27 | General Electric Technology Gmbh | Main shaft for the operation mechanism of a circuit breaker |
| CN106158502A (en) * | 2016-09-07 | 2016-11-23 | 华仪电气股份有限公司 | Outdoor railway single-pole vacuum circuit breaker |
| CN106653425A (en) * | 2016-12-30 | 2017-05-10 | 浙江华仪电器科技有限公司 | Switch structure |
| CN106653425B (en) * | 2016-12-30 | 2019-03-22 | 浙江华仪电器科技有限公司 | Construction of switch |
| CN108594107A (en) * | 2018-01-04 | 2018-09-28 | 国网天津市电力公司电力科学研究院 | Comprehensive tester for breaker loop resistor experiment and mechanical characteristic test |
| CN112259407A (en) * | 2020-09-30 | 2021-01-22 | 西安交通大学 | Three-phase linkage on-off transmission retaining device of high-voltage rapid vacuum switch and working method |
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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: PINGGAO GROUP CO., LTD. JIANGSU ELECTRIC POWER COM Effective date: 20140317 Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: PINGGAO GROUP CO., LTD. Effective date: 20140317 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 467000 PINGDINGSHAN, HENAN PROVINCE TO: 100031 XICHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140317 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: Pinggao Group Co., Ltd. Patentee after: Jiangsu Electric Power Company Patentee after: State Grid Zhejiang Electric Power Company Address before: South East of Pingdingshan city in Henan province 467000 No. 22 Patentee before: Pinggao Group Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: Pinggao Group Co., Ltd. Patentee after: STATE GRID JIANGSU ELECTRIC POWER COMPANY Patentee after: State Grid Zhejiang Electric Power Company Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee before: State Grid Corporation of China Patentee before: Pinggao Group Co., Ltd. Patentee before: Jiangsu Electric Power Company Patentee before: State Grid Zhejiang Electric Power Company |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170204 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: Pinggao Group Co., Ltd. Patentee after: STATE GRID JIANGSU ELECTRIC POWER COMPANY Patentee after: State Grid Zhejiang Electric Power Company Patentee after: Henan high General Electric Co., Ltd. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee before: State Grid Corporation of China Patentee before: Pinggao Group Co., Ltd. Patentee before: STATE GRID JIANGSU ELECTRIC POWER COMPANY Patentee before: State Grid Zhejiang Electric Power Company |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20180709 |