CN203910645U - High-voltage vacuum circuit breaker - Google Patents
High-voltage vacuum circuit breaker Download PDFInfo
- Publication number
- CN203910645U CN203910645U CN201420022067.0U CN201420022067U CN203910645U CN 203910645 U CN203910645 U CN 203910645U CN 201420022067 U CN201420022067 U CN 201420022067U CN 203910645 U CN203910645 U CN 203910645U
- Authority
- CN
- China
- Prior art keywords
- rocking arm
- connecting plate
- arm
- operating mechanism
- housing
- 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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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model discloses a high-voltage vacuum circuit breaker, and the main points of the technical scheme of the utility model are that the circuit breaker comprises a housing, a vacuum arc-extinguishing chamber which is used for the on/off of a circuit, and an operating mechanism which drives the vacuum arc-extinguishing chamber to be switched off or switched on; the vacuum arc-extinguishing chamber and the operating mechanism are disposed on the housing; the operating mechanism comprises an installation plate, a transmission shaft, a first rocking arm, an insulating rod, a connecting rod, a second rocking arm, a permanent magnet device, and a push rod driven by the permanent magnet device; the first rocking arm is sleeved on the transmission shaft; one end of the first rocking arm is in linkage connection with the push rod, and the other end of the rocking arm is hinged to the insulating rod; the connecting rod is connected between the insulating rod and the second rocking arm; and the other end, corresponding to the connecting rod, of the second rocking arm is connected with the vacuum arc-extinguishing chamber. The circuit breaker greatly reduces the number of moving parts and components, does not need a spring mechanism, reduces the probability of failure occurrence, improves the reliability, and effectively reduces the workload of maintenance for a worker.
Description
Technical field
The utility model relates to a kind of high-pressure vacuum breaker.
Background technology
Vacuum circuit-breaker because of its arc-extinguishing medium and arc extinguishing after the dielectric in contact gap be all that high vacuum is gained the name; It has advantages of that volume is little, lightweight, be applicable to frequent operation, arc extinguishing need not overhaul, and in power distribution network, application is comparatively universal.Vacuum circuit-breaker can in industrial and mining enterprises, power plant, transformer station as the protection of electric equipment and control; be specially adapted to require the field of employment without oiling, few maintenance and frequent operation, circuit breaker is configurable to be used as control and protection high voltage electric equipment in middle-placed switch cabinet, double-layer cabinet, fixing cabinet.
In order to ensure the safe operation of electric power system, as control, the vacuum circuit-breaker of protection component must can cut off electric current, the various zero loads of folding and load circuit.In order to complete these tasks, vacuum circuit-breaker must can be in time deciliter dynamic/static contact reliably, this will complete by means of operating mechanism.Therefore, the service behaviour of operating mechanism and quality good or not, directly determined the reliability of operating mechanism.Current existing operating mechanism mainly adopts spring mechanism, and complex structure, part are many, long-term frequent operation, and failure rate is high, the poor reliability of vacuum circuit-breaker, maintenance workload is large.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of high-pressure vacuum breaker, has feature simple in structure, reliability is high.
For achieving the above object, the utility model provides following technical scheme: a kind of high-pressure vacuum breaker, comprise housing, disconnect and closed vacuum interrupter for circuit, drive vacuum interrupter to disconnect and closed operating mechanism, described vacuum interrupter, operating mechanism is placed in respectively on housing, operating mechanism comprises mounting panel, power transmission shaft, the first rocking arm, insulating bar, connecting rod, the second rocking arm, the push rod that permanent magnetic device and permanent magnetic device drive, described the first rocking arm is set on power transmission shaft, one end and the push rod of this first rocking arm are connected, the other end and insulating bar are hinged, described connecting rod is connected between insulating bar and the second rocking arm, the other end of the relative connecting rod of described the second rocking arm is connected with vacuum interrupter, described housing upper surface is provided with boom hoisting, described boom hoisting comprises hoisting board, connecting plate, fixing cross-arm, hanging bolt assembly, the end face of described hoisting board is provided with two fixed heads that are fixedly connected with it, described two fixed heads are disposed on hoisting board one end face and are fixedly connected with housing, described connecting plate is arranged on the other end of the relative fixed head of hoisting board, described fixing cross-arm is placed in connecting plate top, and described hanging bolt assembly is connected and fixed cross-arm and connecting plate.
By adopting technique scheme, the push rod that permanent magnetic device drives, push rod can drive the first rocking arm to rotate around power transmission shaft, by the transmission of insulating bar, connecting rod, make the second rocking arm control vacuum interrupter realize circuit disconnection and closed, greatly reduce moving component and part, do not need spring mechanism, therefore minimizing fault rate, the reliability of raising vacuum circuit-breaker, maintenance work effectively reduces a staff.
The utility model is further set to: described hanging bolt assembly comprises two bolts and for being connected and fixed the nut of cross-arm, described two bolt intervals arrange on connecting plate, and described fixing cross-arm is set on two bolts and fixes with nut.Fixing cross-arm is fixed by two bolts and connecting plate, more firmly stable, and the nut on simultaneously can adjusting bolt is adjusted the distance of fixing cross-arm and connecting plate according to actual conditions, be convenient to installation.
The utility model is further set to: the quantity of described connecting plate is two, and two connecting plates end face is in opposite directions equipped with two suspension hooks, and two suspension hook intervals arrange on connecting plate and are threaded fixing with connecting plate.Fix by suspension hook, can stablize firm installation high-voltage vacuum circuit-breaker, two suspension hooks are all set on two connecting plates, can prevent that high-pressure vacuum breaker from rocking.
By adopting technique scheme, the push rod that permanent magnetic device drives, push rod can drive the first rocking arm to rotate around power transmission shaft, by the transmission of insulating bar, connecting rod, make the second rocking arm control vacuum interrupter realize circuit disconnection and closed, greatly reduce moving component and part, do not need spring mechanism, therefore minimizing fault rate, the reliability of raising vacuum circuit-breaker, maintenance work effectively reduces a staff.
Brief description of the drawings
Fig. 1 is the front view of a kind of high-pressure vacuum breaker of the utility model;
Fig. 2 is the vertical view of a kind of high-pressure vacuum breaker of the utility model.
In figure 1, housing; 2, vacuum interrupter; 3, operating mechanism; 4, boom hoisting; 31, mounting panel; 32, power transmission shaft; 33, the first rocking arm; 34, insulating bar; 35, connecting rod; 36, the second rocking arm; 37, permanent magnetic device; 38, push rod; 41, hoisting board; 42, connecting plate; 43, fixing cross-arm; 44, hanging bolt assembly; 45, fixed head; 46, suspension hook; 441, bolt; 442, nut.
Embodiment
Referring to figs. 1 through Fig. 2, a kind of high-pressure vacuum breaker of the utility model is described further.
A kind of high-pressure vacuum breaker, comprise housing 1, disconnect and closed vacuum interrupter 2 for circuit, drive vacuum interrupter to disconnect and closed operating mechanism 3, described vacuum interrupter 2, operating mechanism 3 is placed in respectively on housing 1, operating mechanism 3 comprises mounting panel 31, power transmission shaft 32, the first rocking arm 33, insulating bar 34, connecting rod 35, the second rocking arm 36, the push rod 38 that permanent magnetic device 37 and permanent magnetic device drive, described the first rocking arm 33 is set on power transmission shaft 32, one end of this first rocking arm and push rod 38 are connected, the other end and insulating bar 34 are hinged, described connecting rod 35 is connected between insulating bar 34 and the second rocking arm 36, the other end of described the second rocking arm 36 relative connecting rods 35 is connected with vacuum interrupter 2.
The push rod 38 that permanent magnetic device 37 drives, push rod 38 can drive the first rocking arm 33 to rotate around power transmission shaft 32, by the transmission of insulating bar 34, connecting rod 35, make the second rocking arm 36 control vacuum interrupter 2 and realize circuit disconnection and closed, greatly reduce moving component and part, do not need spring mechanism, therefore reduce fault rate, the reliability that improves vacuum circuit-breaker, maintenance work effectively reduces a staff.
Described housing 1 upper surface is provided with boom hoisting 4, described boom hoisting 4 comprises hoisting board 41, connecting plate 42, fixing cross-arm 43, hanging bolt assembly 44, the end face of described hoisting board 41 is provided with two fixed heads 45 that are fixedly connected with it, described two fixed heads 45 are disposed on hoisting board one end face fixing with housing 1, described connecting plate 42 is arranged on the other end of hoisting board 41 relative fixed heads 45, described fixing cross-arm 43 is placed in connecting plate 42 tops, described hanging bolt assembly 44 is connected and fixed cross-arm 43 and connecting plate 42, high-pressure vacuum breaker is installed fixing by being placed in the boom hoisting 4 of housing 1 upper surface, boom hoisting 4 is realized high-pressure vacuum breaker is installed and fixed by fixing cross-arm 43, easy for installation, flexibly, greatly improve installing space.
Described hanging bolt assembly 44 comprises two bolts 441 and for being connected and fixed the nut 442 of cross-arm 43, wherein nut 442 can arrange two, coordinating with bolt 441 is like this can prevent from coming off, described two bolt 441 intervals arrange on connecting plate 42, described fixing cross-arm 43 is set on two bolts 441 and uses nut 442 fixing, fixing cross-arm 43 is fixing with connecting plate 42 by two bolts 441, more firmly stable, nut 442 on simultaneously can adjusting bolt 441, adjust the distance of fixing cross-arm 43 and connecting plate 42 according to actual conditions, be convenient to install.
The quantity of described connecting plate 42 is two, two connecting plates 42 end face is in opposite directions equipped with two suspension hooks 46, two suspension hook 46 intervals arrange on connecting plate 42 and are threaded fixing with connecting plate 42, fixing by suspension hook 46, can stablize firm installation high-voltage vacuum circuit-breaker, two suspension hooks 46 are all set on two connecting plates 42, can prevent that high-pressure vacuum breaker from rocking.
Claims (3)
1. a high-pressure vacuum breaker, comprise housing, disconnect and closed vacuum interrupter for circuit, drive vacuum interrupter to disconnect and closed operating mechanism, described vacuum interrupter, operating mechanism is all placed on housing, it is characterized in that: operating mechanism comprises mounting panel, power transmission shaft, the first rocking arm, insulating bar, connecting rod, the second rocking arm, the push rod that permanent magnetic device and permanent magnetic device drive, described the first rocking arm is set on power transmission shaft, one end and the push rod of this first rocking arm are connected, the other end and insulating bar are hinged, described connecting rod is connected between insulating bar and the second rocking arm, the other end of the relative connecting rod of described the second rocking arm is connected with vacuum interrupter, described housing upper surface is provided with boom hoisting, described boom hoisting comprises hoisting board, connecting plate, fixing cross-arm, hanging bolt assembly, the end face of described hoisting board is provided with two fixed heads that are fixedly connected with it, described two fixed heads are disposed on hoisting board one end face and fix with housing, described connecting plate is arranged on the other end of the relative fixed head of hoisting board, described fixing cross-arm is placed in connecting plate top, and described hanging bolt assembly is connected and fixed cross-arm and connecting plate.
2. a kind of high-pressure vacuum breaker according to claim 1, it is characterized in that: described hanging bolt assembly comprises two bolts and for being connected and fixed the nut of cross-arm, described two bolt intervals arrange on connecting plate, and described fixing cross-arm is set on two bolts and fixes with nut.
3. a kind of high-pressure vacuum breaker according to claim 2, is characterized in that: the quantity of described connecting plate is two, and two connecting plates end face is in opposite directions equipped with two suspension hooks, and two suspension hook intervals arrange on connecting plate and are threaded fixing with connecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420022067.0U CN203910645U (en) | 2014-01-14 | 2014-01-14 | High-voltage vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420022067.0U CN203910645U (en) | 2014-01-14 | 2014-01-14 | High-voltage vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203910645U true CN203910645U (en) | 2014-10-29 |
Family
ID=51784900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420022067.0U Expired - Fee Related CN203910645U (en) | 2014-01-14 | 2014-01-14 | High-voltage vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203910645U (en) |
-
2014
- 2014-01-14 CN CN201420022067.0U patent/CN203910645U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20141029 Termination date: 20170114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |