CN202067719U - Porcelain pole type sulfur hexafluoride circuit breaker - Google Patents
Porcelain pole type sulfur hexafluoride circuit breaker Download PDFInfo
- Publication number
- CN202067719U CN202067719U CN 201120065583 CN201120065583U CN202067719U CN 202067719 U CN202067719 U CN 202067719U CN 201120065583 CN201120065583 CN 201120065583 CN 201120065583 U CN201120065583 U CN 201120065583U CN 202067719 U CN202067719 U CN 202067719U
- Authority
- CN
- China
- Prior art keywords
- slide block
- sulfur hexafluoride
- circuit breaker
- slider
- guide
- 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 - Lifetime
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model relates to a porcelain pole type sulfur hexafluoride circuit breaker, which sequentially comprises an arc extinguishing chamber, a support pole and an operating mechanism. An output end of the operating mechanism drives a pull rod through a crank arm, the bottom of the pull rod is fixedly connected to one end of a slider, a guide tube is coaxially sleeved outside the slider, the slider and the guide tube are in axial guide sliding fit, the other end of the slider is in transmission connection with the crank arm through a connecting rod, and two ends of the connecting rod are hinged with the slider and the crank arm respectively. The guide tube and the slider are arranged at the bottom of the connecting rod of the porcelain pole type sulfur hexafluoride circuit breaker to guide the pull rod in linear motion, a support pole insulator cannot be damaged, contact alignment cannot deviate after long-term operation of the circuit breaker, and the circuit breaker is convenient to operate as the crank arm is of a rotary type.
Description
Technical field
The utility model relates to a kind of power transmission and transforming equipment, specifically is a kind of porcelain knob SF
6Circuit breaker.
Background technology
Number of patent application is that 2006101520051 Chinese patent file discloses a kind of porcelain knob breaker, and the circuit breaker pull bar adopts the swing mode, drives contact and carries out divide-shut brake.Because the swing of circuit breaker pull bar, the hidden danger that the circuit breaker strut porcelain bushing is impacted and damages, and long-time running also can cause contact contraposition deviation.
The utility model content
The purpose of this utility model provides a kind of porcelain knob SF
6Circuit breaker damages problem with contact contraposition deviation in order to solve strut porcelain bushing that the swing of prior art circuit breaker pull bar causes.
For achieving the above object, scheme of the present utility model is: a kind of porcelain knob SF
6Circuit breaker, comprise arc control device, pillar and operating mechanism successively, the output of operating mechanism is by the connecting lever drive stay, described pull bar bottom is fixedly connected on an end of a slide block, the peripheral coaxial guide cylinder that is arranged with of described slide block, slide block and the guide cylinder slidable fit that leads vertically, the slide block other end is in transmission connection by a connecting rod and described connecting lever, and described connecting rod two ends are hinged with slide block, connecting lever respectively.
Connecting rod of the present utility model bottom is provided with guide cylinder and slide block, for pull bar provides guiding, makes pull bar directly moving, neither can damage strut porcelain bushing, long-time running, and the contact contraposition can not produce deviation yet.Connecting lever adopts rotation mode, and is easy to operate.
Further, be provided with guide ring between described slide block and the guide cylinder, slide block and described connecting plate junction are provided with guide head.
Further, be provided with heater between strut porcelain bushing bottom and guide cylinder, heater comprises electric heating coil, and described electric heating coil is set on the heat dissipation metal tube, and described heat dissipation metal tube inboard is provided with the metal fin that extends radially inwardly.Increase a heater in the strut porcelain bushing bottom, can heat SF
6Gas is fit to SF
6Circuit breaker is in the use of low temperature condition.
Further, described electric heating coil periphery is provided with heat-preservation cotton and guard ring.The length of described metal fin accounts for the 20%-30% of heat-dissipating cylinder radius.
The heating collar inboard of heating region has increased a heat dissipation metal tube, is provided with radially fin in the heat-dissipating cylinder.In this way, increased the heating surface of gas, made gas heated more even, faster, heats is better.In addition, because shuttle-type pull bar may impact this heat radiating fin structure, adopting the Direct Action Type pull bar to work in coordination with this heat radiating fin structure, is necessary so adopt the Direct Action Type pull bar.
Description of drawings
Fig. 1 is a porcelain knob breaker of the present utility model;
Fig. 2 is breaker structure figure;
Fig. 3 is circuit breaker drive mechanism figure;
Fig. 4 is the heater structure chart.
Embodiment
The utility model is described in more detail below in conjunction with accompanying drawing.
252kV porcelain knob SF as shown in Figure 1
6Circuit breaker comprises arc control device 1 from top to bottom successively, pillar 2, heater 3, support 4, operating mechanism case 5.The circuit breaker internal structure as shown in Figure 3, the pull bar bottom connects a slide block 20, slide block 20 peripheries are provided with and slide block 20, the coaxial guide cylinder 21 of pull bar, slide block 20 and guide cylinder 21 are by the indirect mode slidable fit that leads, be the guide ring 24 guiding slidable fit between slide block 20 and guide cylinder 21 pass through, slide block 20 lower ends also are provided with guide head 25, and are in transmission connection by connecting rod 23 and connecting lever 22, and connecting rod 23 two ends are hinged with slide block 20, connecting lever 22 respectively.The output of operating mechanism is by connecting lever 22 drive stay.Operating mechanism outputs to rotating shaft 26, drives connecting lever 22 swings, because the guide effect of guide cylinder 21 drives slide block 20 and moves up and down with pull bar, has realized the straight moving of pull bar.
In other embodiments, slide block 20 and guide cylinder 21 are by the direct mode slidable fit that leads, and promptly piece 20 directly contacts with guide cylinder 21.
Further, cable 11 is provided with heater 3 outsides.As shown in Figure 4, electric heating coil 15 peripheries also are provided with heat-preservation cotton 16 and guard ring 17.Electric heating coil 15 is fastened on heat dissipation metal tube 10 outer walls, and vertically height is highly identical with heat dissipation metal tube 10.Electric heating coil 15 girths account for 95% of heat dissipation metal tube 10 girths.Heat-preservation cotton 16 covers electric heating coil 15 peripheries fully, fully clad metal heat-dissipating cylinder 10 outer walls.Metal fin 12 vertical length account for more than 86% of heat dissipation metal tube 10 height, the 22%(that length accounts for heat dissipation metal tube 10 radiuses 20% to 30% all can).
Claims (5)
1. porcelain knob sulfur hexafluoride breaker, comprise arc control device, pillar and operating mechanism successively, the output of operating mechanism is by the connecting lever drive stay, it is characterized in that, described pull bar bottom is fixedly connected on an end of a slide block, the peripheral coaxial guide cylinder that is arranged with of described slide block, slide block and the guide cylinder slidable fit that leads vertically, the slide block other end is in transmission connection by a connecting rod and described connecting lever, and described connecting rod two ends are hinged with slide block, connecting lever respectively.
2. a kind of porcelain knob sulfur hexafluoride breaker according to claim 1 is characterized in that, is provided with guide ring between described slide block and the guide cylinder, and slide block and described connecting plate junction are provided with guide head.
3. a kind of porcelain knob sulfur hexafluoride breaker according to claim 1, it is characterized in that, between strut porcelain bushing bottom and guide cylinder, be provided with heater, heater comprises electric heating coil, described electric heating coil is set on the heat dissipation metal tube, and described heat dissipation metal tube inboard is provided with the metal fin that extends radially inwardly.
4. a kind of porcelain knob sulfur hexafluoride breaker according to claim 3 is characterized in that described electric heating coil periphery is provided with heat-preservation cotton and guard ring.
5. a kind of porcelain knob sulfur hexafluoride breaker according to claim 3 is characterized in that the length of described metal fin accounts for the 20%-30% of heat-dissipating cylinder radius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120065583 CN202067719U (en) | 2011-03-14 | 2011-03-14 | Porcelain pole type sulfur hexafluoride circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120065583 CN202067719U (en) | 2011-03-14 | 2011-03-14 | Porcelain pole type sulfur hexafluoride circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202067719U true CN202067719U (en) | 2011-12-07 |
Family
ID=45061576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120065583 Expired - Lifetime CN202067719U (en) | 2011-03-14 | 2011-03-14 | Porcelain pole type sulfur hexafluoride circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202067719U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723227A (en) * | 2012-06-01 | 2012-10-10 | 宁波华通电器集团股份有限公司 | Vacuum circuit breaker mechanical transmission structure with small switch-on oscillation |
| CN104269320A (en) * | 2014-09-24 | 2015-01-07 | 北京合纵科技股份有限公司 | Novel high-voltage switch on-off transmission device |
-
2011
- 2011-03-14 CN CN 201120065583 patent/CN202067719U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723227A (en) * | 2012-06-01 | 2012-10-10 | 宁波华通电器集团股份有限公司 | Vacuum circuit breaker mechanical transmission structure with small switch-on oscillation |
| CN104269320A (en) * | 2014-09-24 | 2015-01-07 | 北京合纵科技股份有限公司 | Novel high-voltage switch on-off transmission device |
| CN104269320B (en) * | 2014-09-24 | 2017-10-13 | 北京合纵科技股份有限公司 | A kind of novel high-pressure switchs split-combination transmission gear |
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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 |
Granted publication date: 20111207 |
|
| CX01 | Expiry of patent term |