CN201623398U - Grounding switch for gas-insulated metal-enclosed switchgear - Google Patents
Grounding switch for gas-insulated metal-enclosed switchgear Download PDFInfo
- Publication number
- CN201623398U CN201623398U CN201020116812XU CN201020116812U CN201623398U CN 201623398 U CN201623398 U CN 201623398U CN 201020116812X U CN201020116812X U CN 201020116812XU CN 201020116812 U CN201020116812 U CN 201020116812U CN 201623398 U CN201623398 U CN 201623398U
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- China
- Prior art keywords
- moving contact
- bearing
- contact
- headstock
- earthed switch
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- 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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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model discloses a grounding switch for a gas-insulated metal-enclosed switchgear, which mainly comprises an operating mechanism, an input shaft, a support, a moving contact and a moving contact seat, wherein one end of the input shaft is connected with the output gear of the operating mechanism; the moving contact seat and the support are fixedly connected; the moving contact is arranged in the central cavity of the support; the other end of the input shaft is provided with a transmission gear; the moving contact is provided with rack; the transmission gear and the rack are engaged to form a transmission pair; and the moving contact is electrically connected with the moving contact seat through a spring contact finger. The utility model has the advantages of compact structure, reliable contact, convenient detachment, small contour dimension and fewer parts.
Description
Technical field:
The design relates to the power equipment in a kind of high-voltage power system, a kind of more precisely earthed switch that is used for the Cubicle Gas-Insulated Switchgear (GIS) of 252kV and above electric pressure thereof.
Background technology:
The earthed switch of the Cubicle Gas-Insulated Switchgear (GIS) of 252kV and above electric pressure use at present, the oval straightening mechanism of its moving contact transmission adopted is shown in Fig. 1 a to Fig. 1 c.Operating mechanism drives connecting lever 29 by bindiny mechanism and rotates, connecting lever 29 drives rotating shaft 28 and rotates, the connecting lever 27 drive pivot pins 26 that are installed in the rotating shaft 28 move in the chute of contact joint 25, drive moving contact 21 simultaneously and do rectilinear motion, finish the earthed switch breaking-closing operating.Form conductive channel like this: stationary contact headstock (being contained in the circuit)-moving contact 21-Mume flower contact 22-guide holder 23-shell.
The slip ring 24 that is contained in the guide holder 23 play the guiding role in moving contact 21 motion processes.
Operating mechanism is connected with the connecting lever 29 of Switch main body by bindiny mechanism, by the oval straightening mechanism of forming by rotating shaft 28, connecting lever 27, pivot pin 26 and contact joint 25 rotational motion is converted to the rectilinear motion of moving contact 21 again, transmission link is many, it is big to take up room during connecting lever 27 rotations, and earthed switch overall dimension is bigger.
23 of moving contact 21 and stationary contact headstock (being contained in the circuit), guide holders are realized being electrically connected by Mume flower contact 22, and complex structure, parts are many.
The utility model content:
The purpose of this utility model is to provide the earthed switch of a kind of compact conformation, flexible operation, the Cubicle Gas-Insulated Switchgear that is used for 252kV and above electric pressure (GIS) that size is little.
The purpose of this utility model is achieved by the following technical programs: a kind of earthed switch that is used for Cubicle Gas-Insulated Switchgear, mainly comprise operating mechanism, power shaft, bearing, moving contact and movable contact headstock, one end of power shaft is connected with the output gear of operating mechanism, the movable contact headstock is fixedlyed connected with bearing, moving contact is packed in the central cavity of bearing, the other end that it is characterized in that described power shaft is provided with travelling gear, moving contact is provided with tooth bar, described driving cog wheel and rack engagement constitutes transmission, and moving contact is electrically connected with the movable contact headstock by spring touch finger.
The further technical scheme of the utility model is, the sidewall of described bearing is provided with pinion stand, travelling gear place in this pinion stand with moving contact on the tooth bar engagement constitute transmission.
The further technical scheme of the utility model is, is provided with guide ring in the central cavity of described bearing, and moving contact vertically passes through guide ring.
The further technical scheme of the utility model is, described spring touch finger is located in the movable contact headstock, and moving contact is electrically connected with the movable contact headstock by spring touch finger.
The further technical scheme of the utility model is that described travelling gear adopts spline to be connected with power shaft.
The utility model compared with prior art has following beneficial effect: this earthed switch compact conformation, contact are reliably, mounting or dismounting are convenient, overall dimension is little, parts are few.
Description of drawings:
Fig. 1 a to Fig. 1 c is the structural representation of existing earthed switch, and wherein Fig. 1 b is the A-A cutaway view of Fig. 1 a, and Fig. 1 c is that B among Fig. 1 b is to view;
Among the figure: moving contact 21; Mume flower contact 22; Guide holder 23; Slip ring 24; Contact joint 25; Pivot pin 26; Connecting lever 27; Rotating shaft 28; Connecting lever 29;
Fig. 2 is the assembling schematic diagram of the utility model embodiment;
Fig. 3 is the A-A cutaway view of Fig. 2;
Among the figure: the 1-operating mechanism; The 2-power shaft; The 3-shell; The 4-guide ring; The 5-gear; The 6-tooth bar; The 7-bearing; The 8-insulating flange; The 9-moving contact; The 10-spring touch finger; 11-movable contact headstock; The 12-end cap; The 13-pinion stand; The 14-main casing.
Embodiment:
Below in conjunction with the embodiment accompanying drawing the design is described further.
As Fig. 2, shown in Figure 3, the utility model mainly comprises operating mechanism 1, power shaft 2, bearing 7, moving contact 9, spring touch finger 10 and movable contact headstock 11, one end of power shaft 2 is connected by spline with the output gear of operating mechanism 1, the other end of power shaft 2 is provided with travelling gear 5, the internal spline of power shaft 2 is inserted on the external splines of travelling gear 5, power shaft 2 is packed in the end cap 12, end cap 12 usefulness bolt are to shell 3, travelling gear 5 is packed in the pinion stand 13 of bearing 7 sidewalls, and travelling gear 5 two ends are equipped with bearing; Tooth bar 6 is housed on the moving contact 9, and travelling gear 5 constitutes transmission with tooth bar 6 engagements; Movable contact headstock 11 adopts and is bolted on the bearing 7, and spring touch finger 10 is housed in the movable contact headstock 11, is electrically connected by spring touch finger 10 realizations between moving contact 9 and the movable contact headstock 11; Be provided with guide ring 4 in the central cavity of bearing 7, moving contact 9 inserts in the guide ring 4 of bearing 7, and guide ring 4 had both play the guiding role here, played the support effect again, keep moving contact 9 and spring touch finger 10 contact pressures to be evenly distributed, guarantee that moving contact 9 and spring touch finger 10 electrically contact reliably; Bearing 7 is packed in the shell 3, passes through bolt; Insulating flange 8 makes shell 3 and main casing 14 electric insulations.
The operation principle of earthed switch is as follows:
During closing operation, operating mechanism 1 drives travelling gear 5 by power shaft 2 and rotates, the transmission that travelling gear 5 and tooth bar 6 constitute converts rotatablely moving of travelling gear 5 to the rectilinear motion of tooth bar 6, tooth bar 6 drive again moving contact 9 along guide ring 4 towards moving near the direction of stationary contact headstock in the switchgear major loop and inserting in the spring touch finger on this stationary contact headstock, finish closing operation.Form conductive channel like this: fixed contact (in the switchgear major loop)-spring touch finger 10-moving contact 9-spring touch finger 10-movable contact headstock 11-bearing 7-shell 3.
During sub-switching operation, operating mechanism 1 drives travelling gear 5 by power shaft 2 and rotates, the kinematic pair that travelling gear 5 and tooth bar 6 constitute converts rotatablely moving of travelling gear 5 to the rectilinear motion of tooth bar 6, tooth bar 6 drives moving contact 9 and moves away from the direction of stationary contact headstock in the switchgear major loop along guide ring 4 courts, extract the spring touch finger of moving contact 9 from this stationary contact headstock, finish sub-switching operation.
Claims (5)
1. the earthed switch that is used for Cubicle Gas-Insulated Switchgear, mainly comprise operating mechanism, power shaft, bearing, moving contact and movable contact headstock, one end of power shaft is connected with the output gear of operating mechanism, the movable contact headstock is fixedlyed connected with bearing, moving contact is packed in the central cavity of bearing, it is characterized in that: the other end of described power shaft is provided with travelling gear, moving contact is provided with tooth bar, described driving cog wheel and rack engagement constitutes transmission, and moving contact is electrically connected with the movable contact headstock by spring touch finger.
2. the earthed switch that is used for Cubicle Gas-Insulated Switchgear according to claim 1 is characterized in that: the sidewall of described bearing is provided with pinion stand, and travelling gear places in this pinion stand and the engagement of the tooth bar on the moving contact constitutes transmission.
3. the earthed switch that is used for Cubicle Gas-Insulated Switchgear according to claim 1 is characterized in that: be provided with guide ring in the central cavity of described bearing, moving contact vertically passes through guide ring.
4. the earthed switch that is used for Cubicle Gas-Insulated Switchgear according to claim 1 is characterized in that: described spring touch finger is located in the movable contact headstock, and moving contact is electrically connected with the movable contact headstock by spring touch finger.
5. the earthed switch that is used for Cubicle Gas-Insulated Switchgear according to claim 1 is characterized in that: described travelling gear adopts spline to be connected with power shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020116812XU CN201623398U (en) | 2010-02-23 | 2010-02-23 | Grounding switch for gas-insulated metal-enclosed switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020116812XU CN201623398U (en) | 2010-02-23 | 2010-02-23 | Grounding switch for gas-insulated metal-enclosed switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201623398U true CN201623398U (en) | 2010-11-03 |
Family
ID=43026853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020116812XU Expired - Lifetime CN201623398U (en) | 2010-02-23 | 2010-02-23 | Grounding switch for gas-insulated metal-enclosed switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201623398U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769258A (en) * | 2012-08-07 | 2012-11-07 | 苏州朗格电气有限公司 | Efficient hydrogen insulation ring net cabinet |
-
2010
- 2010-02-23 CN CN201020116812XU patent/CN201623398U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769258A (en) * | 2012-08-07 | 2012-11-07 | 苏州朗格电气有限公司 | Efficient hydrogen insulation ring net cabinet |
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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: 20101103 |
|
| CX01 | Expiry of patent term |