CN202423109U - Connecting and driving device for vacuum circuit breaker - Google Patents
Connecting and driving device for vacuum circuit breaker Download PDFInfo
- Publication number
- CN202423109U CN202423109U CN2011205104988U CN201120510498U CN202423109U CN 202423109 U CN202423109 U CN 202423109U CN 2011205104988 U CN2011205104988 U CN 2011205104988U CN 201120510498 U CN201120510498 U CN 201120510498U CN 202423109 U CN202423109 U CN 202423109U
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- China
- Prior art keywords
- transmission device
- breaker
- cam
- vacuum
- utility
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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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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model provides a connecting and driving device for a vacuum circuit breaker. The device comprises a cam (4) and an anti-friction bearing (5), as well as an L-shaped contact (12), wherein an arc-shaped slot is formed on the cam (4); the anti-friction bearing (5) is mounted in the arc-shaped slot; the L-shaped contact (12) and the anti-friction bearing (5) are respectively and fixedly connected to the static end and the dynamic end of a vacuum arc extinguishing chamber (10); a pin shaft (6) fixes the anti-friction bearing (5) on a connecting component (16); and the other end of the connecting component (16) is fixedly connected with the dynamic end of the vacuum arc extinguishing chamber (10). According to the connecting and driving device, the anti-friction bearing (5) can effectively mitigate and even solve a problem of failed switch-on caused by overlarge friction resistance; and the L-shaped contact (12) and the vacuum circuit breaker form a surface connection, and the lap joint area is enlarged by more than 3 times, so as to fully meet the requirement on temperature rise.
Description
Technical field
The utility model belongs to power product/equipment technical field, is specifically related to the connection and the transmission device at a kind of vacuum interrupter two ends.
Background technology
Vacuum interrupter is as the key components and parts of vacuum circuit-breaker, and it connects, fixes and the moving contact linkage manner directly influences the performance of vacuum circuit-breaker, to such an extent as to influence the switch cubicle overall performance.Effectively reliably connect with transmission device to improving the on/off switch speed of vacuum interrupter, the temperature rise etc. that reduces arc control device connection end face all can have obvious effects.
On the conventional high pressure SF6 gas-insulated switchgear, the most of part of the circuit breaker except that operating mechanism all is sealed in gas tank inside, comprises vacuum interrupter, transmission component, copper busbar/row; In case transmission component is damaged; Maintenance is difficulty relatively, and even without damage, weakening of transmission efficiency also possibly cause the performance inconsistency lattice of circuit breaker own; So this reduces the gearing friction resistance with regard to inevitable requirement, realize more being in transmission connection effectively reliably.
Simultaneously, the temperature rise of the joint face between copper busbar/row is too high also will to be had a strong impact on generations such as the insulation property of itself and parts on every side and mechanical strengths, so the temperature rise of copper conductor junction must be satisfied the relevant criterion requirement.
When at present on the vacuum circuit-breaker of routine, circular motion being changed into vertical motion, adopt common steel axle sleeve to connect usually through cam.This connected mode frictional resistance is bigger than normal, all the serious consequence that vacuum circuit-breaker can't effectively close a floodgate possibly occur when not enough or compression spring force slightly increases at input torque.In this type of vacuum circuit-breaker, usually L type contact blade is carried out ways of connecting with a switching bolt and the quiet end of vacuum circuit-breaker simultaneously; Under this connected mode, contact-making surface L type contact and that transfer between the bolt is very little, and the contact slit is big, and because the reason of matched in clearance is not whole screw threads all can effectively be contacted with the endoporus of L type contact, the about 25mm of diameter of bore overlaps the not enough 160mm of area
2, when causing rated current to be passed through faying surface heating higher, can't satisfy the temperature rise requirement.
The utility model content
The purpose of the utility model is to provide the dynamic and static two ends of a kind of reliable vacuum interrupter to fix and transmission device; Can guarantee that vacuum interrupter carries out reliable on/off switch action under the effect of driving-chain; And after carrying out 8000 on/off switch circulations, through verifying still action message.Through checking, quiet end of vacuum interrupter and fixed contact junction heatproof rise performance and increase substantially simultaneously.
The connection of the vacuum circuit-breaker of the utility model and transmission device comprise cam and rolling bearing, and deep-slotted chip breaker is arranged on the cam, and rolling bearing is installed in the deep-slotted chip breaker.
According to the most preferred embodiment of the utility model, the deep-slotted chip breaker on the cam, deep-slotted chip breaker is vicissitudinous along the radius of rotation axis position.
Connection of the utility model and transmission device also comprise L type contact, and L type contact and rolling bearing are fixedly connected on the quiet end and the moved end of vacuum interrupter respectively.
Further comprise bearing pin, bearing pin is fixed on rolling bearing on the coupling assembling; The other end of coupling assembling is fixedly connected with the moved end of vacuum interrupter.
According to the most preferred embodiment of the utility model, L type contact directly constitutes being connected of face and face with vacuum circuit-breaker.
Description of drawings
Fig. 1 is the fixing and transmission device rack construction sketch map of the utility model;
Fig. 2 is the connection of the utility model and the rack construction explosive view of transmission device;
Fig. 3 is that connection and the transmission device of the utility model is at vacuum interrupter closing position sketch map;
Fig. 4 is that connection and the transmission device of the utility model is at vacuum interrupter separating brake position view;
Fig. 5 is the connection and the scheme of installation of transmission device in three-phase vacuum breaker of the utility model.
Embodiment
Below in conjunction with the accompanying drawing of the utility model, the most preferred embodiment of the utility model is described in more detail.
Fig. 1 is the fixing and transmission device rack construction sketch map of the utility model, and Fig. 2 is the connection of the utility model and the rack construction explosive view of transmission device.Each label corresponding components is respectively among the figure: 1-transmission main shaft, 2-main shaft support seat, 3-insulation support plate, 4-cam, 5-rolling bearing, 6-bearing pin, 7-catch, 8-are flexible coupling, 9-insulation fixed head, 10-vacuum interrupter, 11-metal fixed head, 12-L type contact, 13-nut, 14-connecting bolt, 15-compression spring, 16-coupling assembling.
As depicted in figs. 1 and 2, fixing and the transmission device of the utility model comprise cam 4 and rolling bearing 5, and a deep-slotted chip breaker is arranged on the cam 4, and deep-slotted chip breaker is vicissitudinous along the radius of rotation axis position, and rolling bearing 5 is installed in the deep-slotted chip breaker.
Fixing and the transmission device of the utility model also comprise L type contact 12, and L type contact 12 and rolling bearing 5 are fixedly connected on the quiet end and the moved end of vacuum interrupter 10 respectively.
Further comprise bearing pin 6, bearing pin 6 is fixed on the coupling assembling 16 with rolling bearing 5, and the other end of coupling assembling 16 is fixedly connected with the moved end of vacuum interrupter 10.L type contact 12 is fixedly connected with the quiet end of vacuum interrupter 10 through connecting bolt 14.
Metal fixed head 11 is used for two insulation support plates 3 fixing.Insulation fixed head 9 is used for fixing circuit breaker top, and connecting bolt 14 passes metal fixed head 11, and two nuts 13 are fixed about utilizing then.Catch 7 prevents that rolling bearing 5 from deviating from from groove in motion process, be flexible coupling 8 to be fixedly connected with the moved end of arc control device.
As shown in Figure 3 is that connection and the transmission device of the utility model is at vacuum interrupter closing position sketch map; Apply power to the transmission main shaft 1 that is installed on the main shaft support seat 2 through operating mechanism; Transmission main shaft 1 conducts to cam 4 with power; And make cam 4 carry out positive and negative rotation, and the groove two ends on cam 4 stop respectively, and these two positions are respectively the separating brake position of the closing position and the vacuum circuit-breaker of vacuum circuit-breaker.Shown in Figure 4 is that connection and the transmission device of the utility model is at vacuum interrupter separating brake position view.
After vacuum interrupter closed a floodgate, compression spring 15 was compressed.Releasing energy of compression spring 15 in order to improve the just-off speed of vacuum interrupter moved end.
Fig. 5 is the connection and the scheme of installation of transmission device in three-phase vacuum breaker of the utility model, and as shown in the figure, vacuum circuit-breaker comprises three-phase: A phase, B mutually and C mutually, the connection that the utility model has been shown among the figure is connected what A went up mutually with transmission device.
The unsuccessful problem of the excessive combined floodgate that brings of frictional resistance can effectively alleviated even solve to connection of the utility model and transmission device, rolling bearing 5.L type contact 12 is connected with the quiet end of vacuum interrupter and any conductor can not be arranged, and L type contact 12 is reduced to 10.2 millimeters with bolt hole by 25 millimeters, and directly constitutes being connected of face and face with vacuum circuit-breaker, and the overlap joint area becomes 409mm
2, reach original 3 times more than, fully satisfy the requirement of temperature rise.Guarantee that not only vacuum interrupter carries out reliable on/off switch action under the effect of driving-chain, and after carrying out 8000 on/off switch circulations, through verifying still action message.
Although disclose the most preferred embodiment and the accompanying drawing of the utility model for the purpose of illustration, the personnel of skilled in the spirit and scope that do not break away from the utility model and appended claim, can do various replacements, variation and retouching.Therefore, the utility model should not be limited to preferred embodiment and the disclosed content of accompanying drawing, and the protection range of the utility model is as the criterion with the scope that appending claims was defined.
Claims (5)
1. the connection of a vacuum circuit-breaker and transmission device comprise cam (4), it is characterized in that: also comprise rolling bearing (5), cam has deep-slotted chip breaker on (4), and rolling bearing (5) is installed in the deep-slotted chip breaker.
2. connection according to claim 1 and transmission device is characterized in that: the deep-slotted chip breaker on the cam (4) is vicissitudinous along the radius of rotation axis position.
3. connection according to claim 1 and 2 and transmission device is characterized in that: also comprise L type contact (12), L type contact (12) and rolling bearing (5) are fixedly connected on the quiet end and the moved end of vacuum interrupter (10) respectively.
4. connection according to claim 3 and transmission device is characterized in that: also comprise bearing pin (6), bearing pin (6) is fixed on (16) on the coupling assembling with rolling bearing (5); The other end of coupling assembling (16) is fixedly connected with the moved end of vacuum interrupter (10).
5. connection according to claim 3 and transmission device is characterized in that: L type contact (12) directly constitutes being connected of face and face with vacuum circuit-breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205104988U CN202423109U (en) | 2011-12-05 | 2011-12-05 | Connecting and driving device for vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205104988U CN202423109U (en) | 2011-12-05 | 2011-12-05 | Connecting and driving device for vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202423109U true CN202423109U (en) | 2012-09-05 |
Family
ID=46747845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205104988U Expired - Lifetime CN202423109U (en) | 2011-12-05 | 2011-12-05 | Connecting and driving device for vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202423109U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108511282A (en) * | 2017-02-24 | 2018-09-07 | 上海良信电器股份有限公司 | A kind of breaker operating mechanism drive mechanism |
| CN111739759A (en) * | 2020-05-11 | 2020-10-02 | 南瑞集团有限公司 | Transmission device of inner cam type vacuum circuit breaker with controllable mechanical characteristics |
| CN112117159A (en) * | 2020-07-30 | 2020-12-22 | 默飓电气有限公司 | Vacuum circuit breaker with adjustable gas insulation looped netowrk cabinet contact pressure |
-
2011
- 2011-12-05 CN CN2011205104988U patent/CN202423109U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108511282A (en) * | 2017-02-24 | 2018-09-07 | 上海良信电器股份有限公司 | A kind of breaker operating mechanism drive mechanism |
| CN111739759A (en) * | 2020-05-11 | 2020-10-02 | 南瑞集团有限公司 | Transmission device of inner cam type vacuum circuit breaker with controllable mechanical characteristics |
| CN112117159A (en) * | 2020-07-30 | 2020-12-22 | 默飓电气有限公司 | Vacuum circuit breaker with adjustable gas insulation looped netowrk cabinet contact pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180606 Address after: Baden, Switzerland Patentee after: ABB TECHNOLOGY LTD. Address before: Zurich Patentee before: ABB T & D Technology Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |