CN103617902A - Novel transmission component of CT type spring mechanism - Google Patents
Novel transmission component of CT type spring mechanism Download PDFInfo
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- CN103617902A CN103617902A CN201310624728.7A CN201310624728A CN103617902A CN 103617902 A CN103617902 A CN 103617902A CN 201310624728 A CN201310624728 A CN 201310624728A CN 103617902 A CN103617902 A CN 103617902A
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- separating brake
- combined floodgate
- spring
- switch
- pull bar
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Abstract
The invention relates to a novel transmission component of a CT type spring mechanism. The spring mechanism is mainly composed of an output connecting rod, a switch-on sector plate, a switch-on half shaft, an output shaft, an output crank arm, a switch-on crank arm, a switch-off sector plate, a switch-off half shaft, a switch-off buffer, a switch-off pulling rod, a switch-on pulling rod, a switch-off spring, a switch-on spring, a transmission gear, a cam, an energy accumulating shaft and the like. The switch-off half shaft, the switch-on half shaft, the switch-off sector plate, the switch-on sector plate, the energy accumulating shaft, the output shaft, the pulling rods and the output connecting rod act in sequence under the driving of the switch-off energy storage spring and the switch-on energy storage spring. According to the novel transmission component of the CT type spring mechanism, the gap between a lining of the switch-off sector plate and a universal shaft of the switch-on pulling rod is improved, the phenomenon that switching off cannot be achieved by the CT type spring mechanism of an LW36-40.5 type breaker is avoided, and the reliability of the action of the breaker is greatly improved.
Description
Technical field
The present invention relates to a kind of operating mechanism of circuit breaker, specifically the CT type spring operating mechanism of LW36-40.5 type circuit breaker.
Background technology
Primary cut-out mainly plays control and protection effect in electric power system: control the input of electric equipment and exit, protection electrical network can disconnect rapidly when breaking down, and reduces power failure range, and Accident prevention expands.Circuit breaker minute, close action, be subject to the control of operating mechanism.Operating mechanism should have under "on" position and keeps function, can not after combined floodgate, occur repeatedly deciliter phenomenon; Also should have shorter opening time and opening velocity faster, separating brake rapidly after receiving separating brake order, the time existing, realizes the effect that reduces as much as possible fault coverage to reduce short trouble.
Current primary cut-out operating mechanism is main mainly with spring mechanism, and the advantage of spring mechanism is minute, closing speed is fast, and motor power (output) is little; Shortcoming is complex structure, and parts are more, and processing technology requires high.
Nowadays, at the LW36-40.5 of network operation type circuit breaker, adapted be CT type spring mechanism, but found that separating brake has appearred refusing in many this CT type spring mechanisms or because of the fault of refusing separating brake that causes not in place of closing a floodgate.
Occur that the reason of refusing separating brake is: receive after separating brake order, because wearing and tearing appear in separating brake fanning strip lining, lining and fixed axis fit clearance are excessive, rotate dumb, occur suppressing strength, bite phenomenon, separating brake fanning strip is failure to actuate after separating brake semiaxis is opened, and causes circuit breaker to refuse separating brake.
The reason of refusing separating brake that causes not in place that occurs closing a floodgate is: receive the order of closing a floodgate, universal drive shaft appearance wearing and tearing due to combined floodgate pull bar, cause the universal drive shaft of combined floodgate pull bar and energy storage axle pivot pin excesssive gap, coordinate and fluff, what cause occurring combined floodgate pull bar and energy storage axle in making process coordinates time of occurrence poor (being exactly that the action of energy storage axle is slower than combined floodgate backward stick action).Owing to coordinating the problem of time difference, although circuit breaker indication is at closing position, after switching-in spring energy has been released, combined floodgate connecting lever is not covered whole making process (be exactly close a floodgate not in place), drive separating brake fanning strip not arrive assigned address, when upper once separating brake, separating brake fanning strip is failure to actuate, and will cause circuit breaker to refuse separating brake.
Facts have proved,, there is the shortcoming of poor accuracy, poor reliability in traditional this spring mechanism in the cooperation of parts, and to equipment, operation has brought potential safety hazard.That during normal running, can cause circuit breaker refuses separating brake fault; Break down while needing circuit breaker correct operation, may occur overstep tripping accident, cause large-area power-cuts, the safe operation of electrical network in serious threat.
Summary of the invention
The object of the invention is to: the phenomenon that the not in place and circuit breaker of breaker closing is refused minute easily occurs the CT type spring operating mechanism that solves LW36-40.5 type circuit breaker, provides a kind of new CT type spring mechanism drive disk assembly, the Reliability of Microprocessor of raising circuit breaker.
The present invention is achieved in that
The CT type spring operating mechanism that this is new, is mainly comprised of parts such as output connecting rod 1, combined floodgate fanning strip 2, combined floodgate semiaxis 3, output shaft 4, output toggle arm 5, combined floodgate connecting lever 6, separating brake fanning strip 7, separating brake semiaxis 8, shunt switch buffer 9, separating brake pull bar 10, divide-shut brake spring, combined floodgate pull bar 13, travelling gear 16, power transmission shaft 17, cam 18, energy storage axles 19;
Described switching-in spring, comprises separating brake big spring 11, separating brake little spring 12, combined floodgate big spring 14, combined floodgate little spring 15; Separating brake big spring 11, separating brake little spring 12 is fixed on separating brake pull bar 10, and separating brake little spring 12 is at nexine, and separating brake big spring 11, at skin, is separating brake energy source; Combined floodgate big spring 14, combined floodgate little spring 15 is fixed on combined floodgate pull bar 13, and combined floodgate little spring 15 is at nexine, and combined floodgate big spring 14, at skin, is combined floodgate energy source;
When closing a floodgate, combined floodgate semiaxis 3 rotates, make energy storage keep removing, 2 actions of combined floodgate fanning strip, combined floodgate big spring 14 and combined floodgate little spring 15 release energy, and by combined floodgate pull bar 13, drive energy storage axle 19 to rotate, and energy storage axle overhead cam 18 is along with storage shaft 4 rotates, by the output toggle arm 5 being fixed on output shaft 4, by separating brake pull bar 10 and output connecting rod 1, make the contact closure in arc control device again, complete breaker closing action;
During separating brake, separating brake semiaxis 8 rotates, and makes separating brake keep removing, and separating brake big spring 11 and separating brake little spring 12 release energy, and 7 actions of separating brake fanning strip, drive output toggle arm 5 to move to open position by separating brake pull bar 10.
One of improve: for solving LW36-40.5 type spring mechanism of circuit breaker in separating brake process, because the lining of separating brake fanning strip 7 occurs after wearing and tearing, corrosion, lining and fixed axis fit clearance are excessive, rotate dumb, there is suppressing strength, bite phenomenon, separating brake fanning strip 7 is failure to actuate after separating brake semiaxis 8 is opened, and causes circuit breaker to refuse the fault of separating brake.
The present invention changes the lining of separating brake fanning strip 7 into rolling bearing 21.Because bearing rotates more flexibly, material is harder, wear-resisting, so just can avoid and fixed axis between there is suppressing strength, bite phenomenon, can avoid circuit breaker to refuse the fault generation of separating brake.
Two of improvement: because wearing and tearing appear in the universal drive shaft 22 on combined floodgate pull bar 13, cause universal drive shaft 22 on combined floodgate pull bar 13 excessive with the pivot pin fit clearance of energy storage axle 19, coordinate and fluff, what cause occurring combined floodgate pull bar 13 and energy storage axle 19 in making process coordinates time of occurrence poor (being exactly that the action of energy storage axle is slower than combined floodgate backward stick action).Owing to coordinating the problem of time difference, although circuit breaker indication is at closing position, after combined floodgate big spring 14 and combined floodgate little spring 15 energy have been released, combined floodgate connecting lever 6 is not covered whole making process (be exactly close a floodgate not in place), drive separating brake fanning strip 7 not arrive assigned address, when upper once separating brake, separating brake fanning strip 7 is failure to actuate, and will cause circuit breaker to refuse separating brake.
The improvement that the present invention makes this is: between the universal drive shaft 22 of combined floodgate pull bar 13 and the pivot pin of energy storage axle 19, install a loose-proof sleeve 23 additional, one can prevent the wearing and tearing of universal drive shaft 22, avoid occurring coordinating the problem of pine, two have solved the problem that coordinated pine, eliminated the problem that coordinates the time difference between combined floodgate pull bar 13 and energy storage axle 19, after combined floodgate big spring 14 and combined floodgate little spring 15 energy have been released, combined floodgate connecting lever 6 also can complete whole making processes, drive separating brake fanning strip 7 to arrive assigned addresses, solve because of close a floodgate not in place cause refuse separating brake fault.
The above-mentioned improvement that the present invention carries out two running parts of CT type spring operating mechanism, the gap of the universal drive shaft 22 of the lining of CT type spring operating mechanism separating brake fanning strip 7 and combined floodgate pull bar 13 is improved, the CT type spring operating mechanism that has solved LW36-40.5 type circuit breaker easily refuse separating brake and because of the appearance not in place of closing a floodgate refuse separating brake phenomenon, greatly improved the reliability of operation of circuit breaker.
Accompanying drawing explanation
Fig. 1. be the overall structure schematic diagram of the CT type spring operating mechanism of the embodiment of the present invention;
Fig. 2. be the shape and structure schematic diagram that changes the separating brake fanning strip after rolling bearing into of the present embodiment;
Fig. 3. the structural representation of the combined floodgate pull bar of the loose-proof sleeve that is installing additional of the present embodiment.
In figure, 1. export connecting rod 2. combined floodgate fanning strip 3. divide-shut brake semiaxis 4. output shaft 5. output toggle arm 6. combined floodgate connecting lever 7. separating brake fanning strip 8. separating brake semiaxis 9. shunt switch buffer 10. separating brake pull bar 11. separating brake big spring 12. separating brake little spring 13. combined floodgate pull bar 14. combined floodgate big spring 15. combined floodgate little spring 16. travelling gear 17. power transmission shaft 18. cam 19. energy storage axle 20 fanning strip boss 21 rolling bearing 22 combined floodgate pull bar universal drive shaft 23 loose-proof sleeves.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
Fig. 1 has shown the overall structure of the CT type spring operating mechanism of the present embodiment
Switching-in spring 14,15 drives travelling gear 16 and drives power transmission shaft 17 and cam 18 completes energy storage work at motor.During combined floodgate, combined floodgate semiaxis 3 rotates, thereby makes energy storage keep removing, 2 actions of combined floodgate fanning strip, and under the effect of combined floodgate big spring 14 and combined floodgate little spring 15, combined floodgate pull bar 13 drives energy storage axle 19 to rotate.Cam on energy storage axle 19 18 drives combined floodgate connecting levers 6 to rotate together with output shaft 4, then completes breaker closing and move by being fixed on output toggle arm 5 on output shaft 4 by separating brake pull bar 10 and exporting connecting rod 1.
During separating brake, separating brake semiaxis 8 rotates, and 7 actions of separating brake fanning strip make separating brake keep removing, and separating brake big spring 11 and separating brake little spring 12 release energy, and by separating brake pull bar 10, drive output connecting rod 1 and output toggle arm 5 to move to open position.In one end of combined floodgate connecting lever 6, splitting lock cushioning 9 is installed, for absorbing superfluous separating brake merit.
Fig. 2 has shown the shape and structure of the separating brake fanning strip changing into after rolling bearing
The present embodiment, changes the lining of separating brake fanning strip 7 into rolling bearing 21.Rolling bearing 21 is arranged in boss 20 holes of separating brake fanning strip 7, and fixed bias circuit holds 21.Because rolling bearing 21 is more flexible, material is harder, wear-resisting, so just can avoid between separating brake fanning strip 7 and fixed axis, occurring suppressing strength, bite phenomenon, thereby avoid the circuit breaker generation of phenomenon of the failure of refusing to grade.
Fig. 3 has shown the shape and structure of the combined floodgate pull bar that has installed loose-proof sleeve additional
Centre at the universal drive shaft 22 of combined floodgate pull bar 13 and the pivot pin of energy storage axle 19 installs a loose-proof sleeve 23 additional.Loose-proof sleeve 23 can prevent the wearing and tearing of universal drive shaft 22, and is convenient to change.Even if there are wearing and tearing in loose-proof sleeve 23, do not affect the action of pull bar universal drive shaft 22 yet, solved the problem that coordinates the time difference between combined floodgate pull bar 13 and energy storage axle 19, avoided the generation of phenomenon of the failure.
Claims (4)
1. a new CT type spring mechanism drive disk assembly, has output connecting rod (1), combined floodgate fanning strip (2), combined floodgate semiaxis (3), output shaft (4), output toggle arm (5), combined floodgate connecting lever (6), separating brake semiaxis (8), shunt switch buffer (9), separating brake pull bar (10), divide-shut brake spring, travelling gear (16), power transmission shaft (17), cam (18), energy storage axle (19); It is characterized in that: be provided with separating brake fanning strip (7) and combined floodgate pull bar (13);
Described switching-in spring, comprises separating brake big spring (11), separating brake little spring (12), combined floodgate big spring (14), combined floodgate little spring (15); Separating brake big spring (11), it is upper that separating brake little spring (12) is fixed on separating brake pull bar (10), and separating brake little spring (12) is at nexine, and separating brake big spring (11), at skin, is separating brake energy source; Combined floodgate big spring (14), it is upper that combined floodgate little spring (15) is fixed on combined floodgate pull bar (13), and combined floodgate little spring (15) is at nexine, and combined floodgate big spring (14), at skin, is combined floodgate energy source;
When closing a floodgate, combined floodgate semiaxis (3) rotates, make energy storage keep removing, combined floodgate fanning strip (2) action, combined floodgate big spring (14), combined floodgate little spring (15) releases energy, by combined floodgate pull bar (13), drive energy storage axle (19) to rotate, energy storage axle overhead cam (18) is along with storage shaft (4) rotates, by the output toggle arm (5) being fixed on output shaft (4), by separating brake pull bar (10) and output connecting rod (1), make the contact closure in arc control device again, complete breaker closing action;
When separating brake, separating brake semiaxis (8) rotates, and makes separating brake keep removing, and tripping spring (11,12) releases energy, and separating brake fanning strip (7) action drives output toggle arm (5) to move to open position by separating brake pull bar (10).
2. the new CT type spring mechanism transmission device of circuit breaker according to claim 1, is characterized in that: described combined floodgate connecting lever (6), its one end is provided with shunt switch buffer (9), for absorbing superfluous separating brake merit.
3. the new CT type spring mechanism transmission device of circuit breaker according to claim 1, it is characterized in that: the upper universal drive shaft (22) of described combined floodgate pull bar (13) is connected with the pivot pin of energy storage axle (19), between universal drive shaft (22) and the pivot pin of energy storage axle (19), loose-proof sleeve (23) is housed.
4. the new CT type spring mechanism transmission device of circuit breaker according to claim 1, is characterized in that: described rolling bearing (21) is arranged in boss (20) hole of separating brake fanning strip (7), and fixed bias circuit holds (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310624728.7A CN103617902A (en) | 2013-12-02 | 2013-12-02 | Novel transmission component of CT type spring mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310624728.7A CN103617902A (en) | 2013-12-02 | 2013-12-02 | Novel transmission component of CT type spring mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103617902A true CN103617902A (en) | 2014-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310624728.7A Pending CN103617902A (en) | 2013-12-02 | 2013-12-02 | Novel transmission component of CT type spring mechanism |
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| CN (1) | CN103617902A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104576096A (en) * | 2014-12-25 | 2015-04-29 | 天津平高智能电气有限公司 | Spring operating mechanism and breaker adopting same |
| CN106384684A (en) * | 2016-09-08 | 2017-02-08 | 国家电网公司 | Breaker opening sector plate device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1515090A (en) * | 1975-07-24 | 1978-06-21 | Hazemeijer Bv | Electrical switch |
| CN2459745Y (en) * | 2000-12-28 | 2001-11-14 | 北京北开电气股份有限公司 | Interlocking spring action mechanism for switching on of high voltage circuit breaker |
| CN201302961Y (en) * | 2008-11-06 | 2009-09-02 | 江苏省如高高压电器有限公司 | Operating mechanism of circuit breaker |
| CN102588093A (en) * | 2011-01-05 | 2012-07-18 | 广西玉柴机器股份有限公司 | Front-end high-power output structure for engine |
-
2013
- 2013-12-02 CN CN201310624728.7A patent/CN103617902A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1515090A (en) * | 1975-07-24 | 1978-06-21 | Hazemeijer Bv | Electrical switch |
| CN2459745Y (en) * | 2000-12-28 | 2001-11-14 | 北京北开电气股份有限公司 | Interlocking spring action mechanism for switching on of high voltage circuit breaker |
| CN201302961Y (en) * | 2008-11-06 | 2009-09-02 | 江苏省如高高压电器有限公司 | Operating mechanism of circuit breaker |
| CN102588093A (en) * | 2011-01-05 | 2012-07-18 | 广西玉柴机器股份有限公司 | Front-end high-power output structure for engine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104576096A (en) * | 2014-12-25 | 2015-04-29 | 天津平高智能电气有限公司 | Spring operating mechanism and breaker adopting same |
| CN104576096B (en) * | 2014-12-25 | 2017-02-22 | 天津平高智能电气有限公司 | Spring operating mechanism and breaker adopting same |
| CN106384684A (en) * | 2016-09-08 | 2017-02-08 | 国家电网公司 | Breaker opening sector plate device |
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Application publication date: 20140305 |