CN203882862U - Transmission system for 550kV circuit breaker - Google Patents
Transmission system for 550kV circuit breaker Download PDFInfo
- Publication number
- CN203882862U CN203882862U CN201420183790.7U CN201420183790U CN203882862U CN 203882862 U CN203882862 U CN 203882862U CN 201420183790 U CN201420183790 U CN 201420183790U CN 203882862 U CN203882862 U CN 203882862U
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- China
- Prior art keywords
- connecting lever
- fixed
- circuit breaker
- crank arm
- splined shaft
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- Expired - Fee Related
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model discloses a transmission system for a 550kV circuit breaker, which comprises a coupling, a connecting arm, a connecting rod, a transmission box and an insulating pull rod, wherein the transmission box comprises a bearing, an inner crank arm, an outer crank arm, a spline shaft and a sealing system, the connecting rod is connected with one end of the connecting arm through a hinge pin, the other end of the connecting arm is connected to the outer crank arm, the center of the outer crank arm is fixed on the spline shaft, the center of the inner crank arm is also fixed on the spline shaft and arranged in a mode that a 90-degree angle is reserved between the inner crank arm and the outer crank arm, and the inner crank arm is connected with the insulating pull rod. The transmission system for the 550kV circuit breaker satisfies a requirement that an auxiliary switch is applied to special use conditions in a laboratory, and fills up the blank of switching sequences.
Description
Technical field
The present invention relates to primary cut-out drive system field, particularly a kind of special drive system for 550kV circuit breaker.
Background technology
Along with China's power system technology is constantly progressive, Ge great High-Voltage Electrical Appliances manufacturing company research and development strength constantly strengthens, high-voltage switch gear structure is more reasonable, performance is more reliable, and China has had enough strength to carry out research and development and the production of superhigh pressure and ultra high voltage High-Voltage Electrical Appliances; And along with national economic strength strengthens, the continuous enforcement of great national construction project and development of the West Regions, also increases day by day to the demand of high voltage switchgear.Electric pressure is progressively gone forward one by one to 550kV, 800kV by 252kV, 330kV, and the High-Voltage Electrical Appliances of various specific (special) requirements are also more and more.It cut-offs energy all from its supporting mechanism all types of primary cut-outs.The 550kV double-fracture circuit breaker of take is example, the speed of cut-offfing of fracture passes to moving contact by hydraulic spring mechanism by drive system, the output speed of hydraulic spring mechanism is that the speed of conditional its output shaft while stretching out is 0 m/s-4 m/s, and take-off lever is retracted and made speed is 0 m/s-10 m/s.Corresponding breaker closing speed is 3.5 ± 0.5 m/s, and opening velocity is 9.5 ± 0.5 m/s.
Universal along with extra high voltage circuit breaker in recent years, the quantity of the ultra-high pressure switch that domestic each laboratory need to be tested, type are also more and more, and various heavy load transformers are also generally applied in testing ground.So just need to invent a kind of novel breaker drive system, the circuit breaker that makes to assemble this drive system can close the special operation condition requirement of transformer heavy load;
The concrete engineering in DianKeYuan laboratory, Suzhou of take is example, should academic test (examination) tests expert's requirement to be: 1, can close line voltage distribution higher, 2, close phase error within the scope of ± 10 °, 3, require the closing speed of circuit breaker in 7m/s left and right.
Existing like this circuit breaker does not reach the instructions for use that Suzhou DianKeYuan expert proposes far away.
Summary of the invention
The present invention is directed to above weak point, invented a kind of Novel transmission system, this drive system can make the closing speed of circuit breaker bring up to 7 m/s, on the basis of original 3.5 ± 0.5m/s, greatly improve closing speed, thereby met laboratory for closing the specific (special) requirements of transformer load.
The technical solution adopted for the present invention to solve the technical problems is: a kind of 550kV circuit breaker drive system, include underframe, support, output shaft, shaft coupling, connecting rod, guide plate, linking arm, mechanism housing, insulated tension pole, interior connecting lever, outer connecting lever, O type sealing baffle, splined shaft, described support is fixed on underframe, described internal stent is provided with hydraulic spring mechanism, the output shaft of hydraulic spring mechanism is connected with connecting rod lower end by shaft coupling, the upper end of connecting rod is connected with linking arm through guide plate, the other end of linking arm is connected on outer connecting lever by bearing pin, the center of outer connecting lever is fixed on splined shaft, the center of interior connecting lever is also fixed on splined shaft, described splined shaft is fixed on mechanism housing, the end of interior connecting lever is connected with insulated tension pole, insulated tension pole connecting breaker joint.
Further, interior connecting lever and outer connecting lever are 90 ° and are fixed on splined shaft.
Further, described splined shaft is through bearing, and one end connects U-shaped sealing baffle, and the other end connects O type sealing baffle, and U-shaped sealing baffle and O type sealing baffle are all fixed on mechanism housing.
This just makes splined shaft be fixed on mechanism housing, and can carry out circular motion, and the energy of hydraulic spring mechanism is delivered to circuit breaker.
The invention has the beneficial effects as follows: this transmission assembling changes the kind of drive of the original horizontal output of hydraulic spring mechanism, realized the conversion of combined floodgate energy and separating brake energy, the motion state of breaker closing when having reached breaker open operation hydraulic spring mechanism output shaft when hydraulic spring mechanism output shaft stretches out and retracting.So just make the closing speed of circuit breaker reach 0m/s-10m/s, thereby meet the special circumstances that close transformer heavy load.
Accompanying drawing explanation
It shown in Fig. 1, is concrete structure schematic diagram of the present invention;
Figure 2 shows that transmission assembling schematic diagram of the present invention.
Embodiment
Embodiment: first support 2 is fixed on end row 1, described support 2 inside are provided with hydraulic spring mechanism, the top of hydraulic spring mechanism is fixed on support 2, in hydraulic spring mechanism, there is output shaft 3, and output shaft 3 is connected with pull bar 5 lower ends by shaft coupling 4, the upper end of pull bar 5 is connected with linking arm 7 through guide plate 6, the other end of linking arm 7 is connected on outer connecting lever 14 by bearing pin, outer connecting lever 14 center is fixed on splined shaft 17, so just can make the energy of hydraulic spring mechanism be delivered on splined shaft.Interior connecting lever 13 center is also fixed on splined shaft 17 and interior connecting lever 13 and outer connecting lever 14 be 90 ° fixing, the end of interior connecting lever 13 is connected with insulated tension pole 10, the other end connecting breaker of insulated tension pole 10.The two ends of splined shaft 17 are respectively through a bearing 12, and one end connects U-shaped sealing baffle 11, the other end connects O type sealing baffle 16, U-shaped sealing baffle 11 and O type sealing baffle 16 are all fixed on mechanism housing 8, this just makes splined shaft be fixed on mechanism housing 8, and transfers energy on insulated tension pole 10.
According to description above, start the switch of hydraulic spring mechanism, hydraulic spring mechanism can drive output shaft 3 to carry out rectilinear motion, moving through shaft coupling 4, pull bar 5, linking arm 7 is delivered on outer connecting lever 14, cause the circular motion of outer connecting lever 14, the circular motion of outer connecting lever 14 can drive splined shaft 17 to rotate, and the rotation of splined shaft 17 can drive interior connecting lever 13 to carry out circular motion.Because the rectilinear motion displacement of hydraulic spring mechanism output shaft 3 is 205mm(, to take CTY-10 type hydraulic spring mechanism be example), when the length of regulating connecting rod 4 and linking arm 7 makes output shaft motion, splined shaft 17 rotates 60 ° (upper and lower each 30 ° of horizontal lines), when output shaft 3 complete once past, return when motion can drive interior connecting lever 13 can up times, the inverse time turns over 60 °, the end of the interior connecting lever 13 that will make is like this past, return motion 200mm.Thereby drive connected insulated tension pole 10 past, return motion 200mm, and then drive that circuit breaker divides, feed motion.
Certainly, above-mentioned explanation is not limitation of the present invention, and the present invention is also not limited in above-mentioned giving an example, and the variation that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement, also should belong to protection scope of the present invention.
Claims (3)
1. a 550kV circuit breaker drive system, is characterized in that: include underframe (1), support (2), output shaft (3), shaft coupling (4), connecting rod (5), guide plate (6), linking arm (7), mechanism housing (8), insulated tension pole (10), interior connecting lever (13), outer connecting lever (14), O type sealing baffle (16), splined shaft (17), described support (2) is fixed on underframe (1), described support (2) inside is provided with hydraulic spring mechanism, the output shaft of hydraulic spring mechanism (3) is connected with connecting rod (5) lower end by shaft coupling (4), the upper end of connecting rod (5) is connected with linking arm (7) through guide plate (6), the other end of linking arm (7) is connected on outer connecting lever (14) by bearing pin, the center of outer connecting lever (14) is fixed on splined shaft (17), the center of interior connecting lever (13) is also fixed on splined shaft (17), described splined shaft (17) is fixed on mechanism housing (8), the end of interior connecting lever (13) is connected with insulated tension pole (10), insulated tension pole (10) connecting breaker joint.
2. a kind of 550kV circuit breaker drive system according to claim 1, is characterized in that: interior connecting lever (13) is 90 ° with outer connecting lever (14) and is fixed on splined shaft (17).
3. a kind of 550kV circuit breaker drive system according to claim 1, it is characterized in that: described splined shaft (17) is through bearing (12), one end connects U-shaped sealing baffle (11), the other end connects O type sealing baffle (16), and U-shaped sealing baffle (11) and O type sealing baffle (16) are all fixed on mechanism housing (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420183790.7U CN203882862U (en) | 2014-04-16 | 2014-04-16 | Transmission system for 550kV circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420183790.7U CN203882862U (en) | 2014-04-16 | 2014-04-16 | Transmission system for 550kV circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203882862U true CN203882862U (en) | 2014-10-15 |
Family
ID=51683336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420183790.7U Expired - Fee Related CN203882862U (en) | 2014-04-16 | 2014-04-16 | Transmission system for 550kV circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203882862U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943404A (en) * | 2014-04-16 | 2014-07-23 | 山东泰开高压开关有限公司 | Transmission system for 550kV breaker |
-
2014
- 2014-04-16 CN CN201420183790.7U patent/CN203882862U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943404A (en) * | 2014-04-16 | 2014-07-23 | 山东泰开高压开关有限公司 | Transmission system for 550kV breaker |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20190416 |