CN2909496Y - Isolating switch with heavy balance device - Google Patents
Isolating switch with heavy balance device Download PDFInfo
- Publication number
- CN2909496Y CN2909496Y CN 200620086098 CN200620086098U CN2909496Y CN 2909496 Y CN2909496 Y CN 2909496Y CN 200620086098 CN200620086098 CN 200620086098 CN 200620086098 U CN200620086098 U CN 200620086098U CN 2909496 Y CN2909496 Y CN 2909496Y
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- CN
- China
- Prior art keywords
- buffer
- housing
- connecting rod
- spring
- rod
- 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
Links
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model relates to an isolating switch, in particular to an isolating switch with a gravity balance apparatus, comprising two fixed static-contact insulating pillars for each phase respectively and a moving contact insulating pillar mounted between the two static-contact insulating pillars. A static contact is mounted on the top of the static-contact insulating pillar. A gear case is mounted on the top of the moving contact insulating pillar. A horizontal power output shaft is mounted in the gear case. A connecting rod is mounted on the power output shaft. A moving contact is mounted on the top of the connecting rod. A buffered gravity balance device is mounted between the gear case and the connecting rod. The position of the buffered gravity balance device, namely, between the gear case and the connecting rod, can bear the weight of the connecting rod with the help of the elasticity of the spring, which is helpful for raising the instant speed and reducing the impact force at the time of switching-on.
Description
Technical field
The utility model relates to a kind of isolating switch, especially has the isolating switch of gravity balance device.
Background technology
Vertical breakaway-element isolating switch is the common equipment that is applied in the superhigh pressure transformer station, its operation principle is to utilize of being arranged on each phase line can vertically revolve the connecting rod that turn 90 degrees to connect the termination, connecting rod is the straight-bar of fixing, the rotation connecting rod makes its contact insert fixed contact during combined floodgate, during separating brake connecting rod is revolved to turn 90 degrees to lift to get final product.The S3CD type bilateral of producing as Alstom (ALSTOM) disconnects isolating switch.But because connecting rod is a straight-bar, when being used for supertension line, the length of connecting rod is very big, decides the compressing that contact will bear connecting rod gravity after closing a floodgate, and in addition, the gravity of connecting rod also influences the raising of just-off speed in the separating brake process.My another patent application CN200510044760.3 " dual-fracture surface vertical disjunction extra-high-voltage isolated switch " disclose a kind of simple in structure, inertia impact is little, the dual-fracture surface vertical disjunction extra-high-voltage isolated switch of good stability.But still connecting rod inertia is big, gravity torque big when exist closing a floodgate, influence the problem of just-off speed.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, can overcome connecting rod weight, help to improve the isolating switch that has gravity balance device of just-off speed.
For achieving the above object, the utility model adopts following technical scheme:
The isolating switch that has gravity balance device described in the utility model comprises
Every have two fixing static contact and insulation pillars and a moving contact insulation column that is arranged between the two static contact and insulation pillars mutually, the top of static contact and insulation pillar is equipped with fixed contact, the top of moving contact insulation column is equipped with gear box, be provided with the power output shaft of level in the gear box, connecting rod is installed on the power output shaft, and the top of connecting rod has moving contact;
Buffer-type gravitational equilibrium device is installed between gear box and connecting rod, buffer-type gravitational equilibrium device comprises housing and the shrinking connecting-rod that is inserted in the housing, be fixedly connected with stationary links on the housing, the fixedly connected end cap in the end of housing, the centre of end cap has tie rod holes, shrinking connecting-rod is inserted in this tie rod holes, and the side that shrinking connecting-rod is positioned at housing has spring base, and the compression spring is installed between spring base and end cap; A side end that is positioned at housing at shrinking connecting-rod has spring cavity, buffer spring and buffer bar are installed in this spring cavity, the end that buffer bar is positioned at the spring cavity inboard has buffer casting, and buffer spring is resisted against on the buffer casting, and the end of spring cavity is equipped with the spring cavity end cap.
End cap is connected the end of housing by bolt, and the spring cavity end cap is by being threaded in the end of spring cavity.
One side of described moving contact insulation column is provided with the insulation column spinner, the upper end of insulation column spinner is connected by the driving of the driving gear in worm-and-wheel gear and the gear box, driving gear meshes with two driven gears simultaneously, and two driven gears drive with two output shafts respectively and are connected; The lower end of insulation column spinner (3) is connected with driving mechanism by worm-and-wheel gear.
The utility model is installed in buffer-type gravitational equilibrium device on the connecting rod of isolating switch, can balanced connecting rod deadweight, help to improve just-off speed, alleviate connecting rod deadweight when closing a floodgate to the impact of fixed contact, reduce operand power.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the utility model;
Fig. 2 is the structural representation of buffer-type gravitational equilibrium device.
Embodiment
As shown in Figure 2, buffer-type gravitational equilibrium utensil described in the utility model has the housing a1 and the shrinking connecting-rod a2 that is inserted among the housing a1 at the bottom of the cylindric band, the bottom of housing a1 is fixedly connected with stationary links a3, the end of shrinking connecting-rod a2 and stationary links a3 has installing hole, can be installed in by this installing hole on the connecting rod of isolating switch.The end of housing a1 is bolted to connection end cap a4, the centre of end cap a4 has tie rod holes, shrinking connecting-rod a2 is inserted in this tie rod holes, and the side that shrinking connecting-rod a2 is positioned at housing a1 has spring base a5, and compression spring a6 is installed between spring base a5 and end cap a4; A side end that is positioned at housing a1 at shrinking connecting-rod a2 has spring cavity, buffer spring a7 and buffer bar a8 are installed in this spring cavity, the end that buffer bar a8 is positioned at the spring cavity inboard has buffer casting a9, buffer spring a7 is resisted against on the buffer casting a9, and the end of spring cavity is by the spring cavity end cap a10 that has been threaded.
As shown in Figure 1, the isolating switch that has gravity balance device described in the utility model comprises static contact and insulation pillar 1 and a moving contact insulation column 10 that is arranged between the two static contact and insulation pillars 1, the top of static contact and insulation pillar 1 is equipped with fixed contact 2, the top of moving contact insulation column 10 is equipped with gear box 9, be provided with the power output shaft 91 of level in the gear box 9, on the power output shaft 91 connecting rod be installed; Side at moving contact insulation column 10 is provided with insulation column spinner 3, the upper end of insulation column spinner 3 is connected by the driving of the driving gear in worm-and-wheel gear and the gear box 9, driving gear meshes with two driven gears simultaneously, and two driven gears drive with two output shafts 91 respectively and are connected; The lower end of insulation column spinner 3 is connected with driving mechanism with permanent-magnet operating mechanism by worm-and-wheel gear.
Buffer-type gravitational equilibrium device shown in Figure 2 is installed on the isolating switch by installing hole, and the one end is hinged on the connecting rod 4, and the other end is hinged on the higher gear box in position 9.When isolating switch was in "on" position, the resistance that connecting rod 4 overcomes compression spring a6 elongated shrinking connecting-rod a2.Both offset as long as the elasticity size that designs compression spring a6 according to the weight of connecting rod 4 just can make it, reach to overcome connecting rod 4 gravity, alleviate and move the purpose of impulsive force.When separating brake action beginning, the elastic force acting in conjunction of the actuating force of gear box 9 and compression spring a6 is in connecting rod 4, make connecting rod 4 quick actings, reach very high just-off speed, motion along with connecting rod 4, the elastic force of compression spring a6 reduces gradually, in the time of can avoiding the separating brake action to finish mechanism is caused big impact.When the separating brake action was finished, buffer bar a8 at first clashed into the bottom of housing a1, and compression buffer spring a7, the impact that can slow down 4 couples of housing a1 of shrinking connecting-rod a2 and connecting rod and gear box 9 like this.
The implementation of the worm-and-wheel gear of above-mentioned isolating switch and permanent-magnet operating mechanism and driving mechanism is existing the description in CN200510044760.3 " dual-fracture surface vertical disjunction extra-high-voltage isolated switch ", no longer repeats at this.
Certainly, this buffer-type gravitational equilibrium device also can be used for other forms of isolating switch, and as collapsible vertical deciliter extra-high-voltage isolated switch, its installation form is identical with present embodiment with action principle.
Insulation column spinner 3 also can be set in the isolating switch, power drive and jockey be set, drive link 4 actions in moving contact insulation column 10 inside.
Claims (3)
1, have the isolating switch of gravity balance device, comprising:
Every have two fixing static contact and insulation pillars (1) and a moving contact insulation column (10) that is arranged between the two static contact and insulation pillars (1) mutually, the top of static contact and insulation pillar (1) is equipped with fixed contact (2), the top of moving contact insulation column (10) is equipped with gear box (9), be provided with the power output shaft (91) of level in the gear box (9), connecting rod (4) is installed on the power output shaft (91), and the top of connecting rod (4) has moving contact;
It is characterized in that: between gear box (9) and connecting rod (4), buffer-type gravitational equilibrium device is installed, buffer-type gravitational equilibrium device comprises housing (a1) and is inserted into shrinking connecting-rod (a2) in the housing (a1), be fixedly connected with stationary links (a3) on the housing (a1), the fixedly connected end cap in end (a4) of housing (a1), the centre of end cap (a4) has tie rod holes, shrinking connecting-rod (a2) is inserted in this tie rod holes, the side that shrinking connecting-rod (a2) is positioned at housing (a1) has spring base (a5), and compression spring (a6) is installed between spring base (a5) and end cap (a4); A side end that is positioned at housing (a1) at shrinking connecting-rod (a2) has spring cavity, buffer spring (a7) and buffer bar (a8) are installed in this spring cavity, the end that buffer bar (a8) is positioned at the spring cavity inboard has buffer casting (a9), buffer spring (a7) is resisted against on the buffer casting (a9), and the end of spring cavity is equipped with spring cavity end cap (a10).
2, the isolating switch that has gravity balance device according to claim 1 is characterized in that: end cap (a4) is connected the end of housing (a1) by bolt, and spring cavity end cap (a10) is by being threaded in the end of spring cavity.
3, the isolating switch that has gravity balance device according to claim 1 and 2, it is characterized in that: a side of described moving contact insulation column (10) is provided with insulation column spinner (3), the upper end of insulation column spinner (3) is connected by the driving of the driving gear in worm-and-wheel gear and the gear box (9), driving gear meshes with two driven gears simultaneously, and two driven gears drive with two output shafts (91) respectively and are connected; The lower end of insulation column spinner (3) is connected with driving mechanism by worm-and-wheel gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620086098 CN2909496Y (en) | 2006-06-26 | 2006-06-26 | Isolating switch with heavy balance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620086098 CN2909496Y (en) | 2006-06-26 | 2006-06-26 | Isolating switch with heavy balance device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2909496Y true CN2909496Y (en) | 2007-06-06 |
Family
ID=38128714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620086098 Expired - Fee Related CN2909496Y (en) | 2006-06-26 | 2006-06-26 | Isolating switch with heavy balance device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2909496Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105632831A (en) * | 2016-03-29 | 2016-06-01 | 北京赛德高科铁道电气科技有限责任公司 | Earthing switch used inside cabinet |
-
2006
- 2006-06-26 CN CN 200620086098 patent/CN2909496Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105632831A (en) * | 2016-03-29 | 2016-06-01 | 北京赛德高科铁道电气科技有限责任公司 | Earthing switch used inside cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070606 |