CN2139738Y - Shunt switch buffer - Google Patents
Shunt switch buffer Download PDFInfo
- Publication number
- CN2139738Y CN2139738Y CN 92242133 CN92242133U CN2139738Y CN 2139738 Y CN2139738 Y CN 2139738Y CN 92242133 CN92242133 CN 92242133 CN 92242133 U CN92242133 U CN 92242133U CN 2139738 Y CN2139738 Y CN 2139738Y
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- CN
- China
- Prior art keywords
- spring
- stop plug
- buffer
- utility
- model
- 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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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model relates to a shunt switch buffer, which belongs to the technical field of high-voltage electrical apparatus. The shunt switch buffer comprises a cylindrical shell body, a stop plug and a spring, wherein, the upper part of the stop plug is a screw rod, and the lower part is a cylinder; the bottom of the cylinder is provided with a chamfering, and the middle position is discoid. The stop plug is mutually connected with a power piece through a connecting rod; a piston circular disc is connected with the spring. The bolt and the piston ring positioned at the bottom of the shell body press the spring in a lower box. The utility model can be used for various high-voltage circuit breakers, and can also adjust the moving curve of a contact head when used for vacuum circuit breakers. The utility model has better buffering effect than oil buffers because the energy self-consumption and the negative feedback principles are used.
Description
The utility model belongs to high voltage electrical apparatus technical field, further relates to a kind of splitting lock cushioning device that is used for primary cut-out.
Switch off oscillation can make circuit breaker thump when cut-offfing electrical network and wear, and this is extremely unfavorable to electrical network.At present the used splitting lock cushioning device of vacuum circuit-breaker be oil bumper substantially, and also useful rubber sheet gasket is as buffer, the too late oil bumper of rubber bumper performance.Patent of West Germany is application " hydraulic bjuffer of circuit breaker " in April, 1980, and the patent No. is NO2843368.This buffer is to absorb power spare kinetic energy by oil, and is stored in the oil with the potential energy form.Reduce owing to overflowing of oil makes buffering oil, thereby influence its buffering effect.And this kind buffer has significantly springing phenomenon when still making the vacuum circuit-breaker separating brake.
The purpose of this utility model is to provide a kind of elimination switch off oscillation, and need not oily splitting lock cushioning device as the buffering damping.
The utility model comprises cylindrical housings, stop plug and spring.Stop plug top is screw rod, and the bottom is a cylinder, and cylindrical base has chamfering, and the middle part is discoid.Stop plug links to each other with power spare by connecting rod.Spring links to each other with plunger disc, and housing bottom is screwed with bolt, and bolt and plunger disc are pressed in spring in the housing nowel.
The utility model will be further described below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the structural representation of the utility model embodiment 2;
Fig. 3 is a plum blossom spring structure schematic diagram;
Fig. 4 is the structural representation of sheet spring.
Stop plug of the present utility model 14 tops are screw rod, and the bottom is a cylinder, and cylindrical base has certain chamfering, and chamfering can be got 10 ° of-70 ° of different angles according to different separating brake power, and the middle part is discoid.Stop plug 14 links to each other with power spare by connector 12.Spring 15 and plunger disc 16 link to each other by bolt, and the bottom is screwed with bolt 17, and bolt 17 and plunger disc 16 are pressed in spring 5 in housing 2 nowels.Bolt 17 links to each other with the circuit breaker base by connector 1.Anti-heavy cover 13 and be positioned on the housing 2 by screw 10 and pad 11.
When breaker open operation, stop plug 14 moves downward, during to certain position and spring 15 collide, and spring 15 is quincunx spring, strutted by stop plug 14 effects, at this moment the kinetic energy part of power spare changes potential energy into and is stored in the plum blossom spring, and spring 5 also has a point deformation simultaneously, promptly also absorbs a part of kinetic energy.After spring 15 is opened fully, between spring 15 and the stop plug 14 relative motion is arranged, and spring 5 will set back, and potential energy will be offset the kinetic energy of a part of power spare by frictional force, up to colliding with bolt 6.When stop plug 14 is collided with screw 6, power spare kinetic energy is absorbed by spring 5.If when stop plug 14 stop plug 14 bounce-backs occurred with screw 6 collisions, its frictional force was forever opposite with stop plug 14 directions of motion, promptly frictional force stops stop plug 14 vibrations, and this will make the vibration of power spare very little.If spring 15 and spring 5 rigidity and stop plug 14 bottom form fit are appropriate, then can make bounce-back very little, even not have bounce-back.
Another kind of pattern of the present utility model as shown in Figure 2.The plum blossom spring is become a plurality of small pieces springs 15, and it is set among the groove of part 16.Spring 5 can be butterfly spring or cylindrical spring.
The utility model can be used for various primary cut-outs, also can regulate the contact curve movement when being used for vacuum circuit-breaker, cut-offs the short circuit current performance to improve it.Owing to used energy consumable and negative-feedback principle to make buffering effect better than oil bumper.
Claims (7)
1, splitting lock cushioning device, it comprises cylindrical housings, stop plug and spring, it is characterized in that: described stop plug 14 tops are screw rod, the bottom is a cylinder, and cylindrical base has chamfering, and the middle part is discoid, stop plug 14 links to each other with power spare by connector 12, described spring 15 links to each other with plunger disc 16, and described housing bottom is screwed with bolt 17, and bolt 17 and plunger disc 16 are pressed in spring 5 in housing 2 nowels.
2, buffer as claimed in claim 1 is characterized in that: described stop plug chamfering is 10 °-70 °.
3, buffer as claimed in claim 1 is characterized in that: described spring 15 is the plum blossom spring, and it links to each other with plunger disc 16 screws.
4, buffer as claimed in claim 1 is characterized in that: described spring 15 is the sheet spring, and it is set among the groove of plunger disc 16.
5, buffer as claimed in claim 1 is characterized in that: described spring 5 is the butterfly spring.
6, buffer as claimed in claim 1 is characterized in that: described spring 5 is cylindrical spring.
7, buffer as claimed in claim 1 is characterized in that: described bolt 17 links to each other with the circuit breaker base by connector 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92242133 CN2139738Y (en) | 1992-11-21 | 1992-11-21 | Shunt switch buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92242133 CN2139738Y (en) | 1992-11-21 | 1992-11-21 | Shunt switch buffer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2139738Y true CN2139738Y (en) | 1993-08-04 |
Family
ID=33782017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92242133 Expired - Fee Related CN2139738Y (en) | 1992-11-21 | 1992-11-21 | Shunt switch buffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2139738Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104538247A (en) * | 2015-01-15 | 2015-04-22 | 南车株洲电力机车有限公司 | Vacuum circuit breaker and vacuum circuit breaker driving device |
| CN108054051A (en) * | 2017-11-09 | 2018-05-18 | 河南平高通用电气有限公司 | A kind of breaker and its excess of stroke elastic device |
| CN109038295A (en) * | 2018-08-13 | 2018-12-18 | 浙江华仪电器科技有限公司 | A kind of buffer unit and its high-tension switch cabinet for operating mechanism |
-
1992
- 1992-11-21 CN CN 92242133 patent/CN2139738Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104538247A (en) * | 2015-01-15 | 2015-04-22 | 南车株洲电力机车有限公司 | Vacuum circuit breaker and vacuum circuit breaker driving device |
| CN108054051A (en) * | 2017-11-09 | 2018-05-18 | 河南平高通用电气有限公司 | A kind of breaker and its excess of stroke elastic device |
| CN109038295A (en) * | 2018-08-13 | 2018-12-18 | 浙江华仪电器科技有限公司 | A kind of buffer unit and its high-tension switch cabinet for operating mechanism |
| CN109038295B (en) * | 2018-08-13 | 2024-05-31 | 浙江华仪电器科技有限公司 | Buffer device for operating mechanism and high-voltage switch cabinet thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |