CN2408560Y - Tripping device for breaker knife switch - Google Patents
Tripping device for breaker knife switch Download PDFInfo
- Publication number
- CN2408560Y CN2408560Y CN 99257677 CN99257677U CN2408560Y CN 2408560 Y CN2408560 Y CN 2408560Y CN 99257677 CN99257677 CN 99257677 CN 99257677 U CN99257677 U CN 99257677U CN 2408560 Y CN2408560 Y CN 2408560Y
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- CN
- China
- Prior art keywords
- pallet
- detent
- breaking
- roller
- small
- 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 breaking tripping device for a breaker knife switch, which is used for breaking and unlocking for the breaker. The device adds one small detent (5) limiting a detent (11) on the detent (11) which limits a main shaft crank arm (8) in an old tripping device; the arc-shaped surface of the lower end of the small detent (5) abuts against a roller (6) of the detent (11); a small roller (1) of the upper end abuts against a bending plate contacted with a breaking driving element (a manual button or an electromagnet). when the switch is opened, the bending plate, the small detent and the detent orderly acts and are unlocked; the main shaft of the switch can rotate under the condition of breaking; a mechanism is driven to realise the breaking. After the small detent is added, the manual operation or the electrodynamic force for unlocking of the mechanism is reduced; the breaking is increased; especially, the reliability for breaking under the condition of low-voltage is increased.
Description
The utility model is mechanical trip gear, is used for the combined floodgate locking and the separating brake dropout (release) of high voltage switchgear such as circuit breaker.
The closing of high voltage switchgear such as vacuum circuit-breaker major loop dynamic/static contact (combined floodgate), divide (separating brake) to finish by mechanical operating mechanism.Promptly under artificial or electronic promotion, combined floodgate in the operating mechanism or separating brake pallet release (dropout) then realize closing a floodgate or separating brake under the effect of switching-in spring or tripping spring.Wherein mainly the offset change of state realizes the dropout before the separating brake by pallet in the switching-off device and main shaft connecting lever.The trip gear of existing switchgear all is to have only a pallet, the active force that itself and switch spindle offset is very big, need very big separating brake power (artificial or electronic) to throw off, this just causes the separating brake action not nimble, even influence the reliability of separating brake under the low-voltage, lead to this separating brake and accident that can not separating brake.
The design's purpose is to reduce switchgear separating brake release (dropout) power, improves the reliability of separating brake and the nimble property of operation.
Design of the present utility model is: except that common employing can be around bearing pin rotates and be against with the end cambered surface a pallet on the switch spindle connecting lever roller, on this pallet, also have a little pallet that can rotate around small clevis pin with head, and the end cambered surface of this little pallet is against on the roller of above-mentioned pallet; The trundle of little pallet upper end be against with the contacted bent plate of separating brake actuator (hand push button or electromagnet) on; Be with a torsion spring on the above-mentioned small clevis pin with head.
Course of action of the present utility model: sub-gate signal (electronic or manual) makes the control bent plate promote trundle above the little pallet, so little pallet rotates the roller disengaging of its lower end cambered surface and following pallet around small clevis pin with head; This pallet loses the constraint of little pallet, promptly rotates counterclockwise around its bearing pin under the effect that tripping spring clockwise rotates switch spindle, and the roller of its lower end cambered surface and switch spindle connecting lever is broken away from; Switch spindle continues to clockwise rotate under the continuation effect of tripping spring, drive and the hinged backward stick action of the main shaft connecting lever other end, and then the moving conductive rod in the straightening mechanism of drive back moves downward the realization breaker open operation.
The advantage of this device is the leading role that the little pallet of increase plays dropout, promptly just can make it to rotate and free its constraint to following pallet with very little external force.And if there is not little pallet, the constraint of pallet then needs bigger power below directly removing.Thereby this device can effectively reduce the breaker open operation release manually or electric power, improve the particularly reliability of separating brake under the low-voltage of separating brake.
Below in conjunction with description of drawings embodiment of the present utility model:
Fig. 1 connects trip gear for this separating brake;
Fig. 2 connects the circuit breaker of trip gear for adopting this separating brake.
In Fig. 1,1 is little (pallet) roller, and 2 is the catch spring axis of fixedlying connected with the device underframe, 3 for being enclosed within the torsion spring on the little pallet bearing pin, and 4 is little (pallet) bearing pin, and 5 is little pallet, 6 is the pallet roller, and 7 is main shaft connecting lever roller, and 8 is the main shaft connecting lever, 9 is (switch) main shaft, 10 is insulated tension pole, and 11 is pallet, and 12 is the pallet bearing pin, 13 are extension spring, and 14 are extension spring hanging scroll (fixing with the device underframe).
Wherein, trundle 1 offsets with the chain of command of bent plate (not drawing), and bent plate contacts with sub-gate signal actuator (hand push button or electromagnet); Catch spring axis 2 is fixed pivots of 3 pairs of little pallet effects of torsion spring; Main shaft connecting lever 8 is hinged with insulated tension pole 10; Main shaft 9 links to each other with tripping spring (not drawing); Extension spring 13 makes pallet 11 keep contacting with main shaft connecting lever 8; The arc core (center of circle) of pallet 11 lower end cambered surfaces is opened certain distance partially with pallet bearing pin 12, thereby can rotate under the effect of main shaft connecting lever 8.
Before sub-gate signal does not send (promptly under "on" position), each position component state as shown in the figure.Sub-gate signal sends back (by electromagnet or hand push button), makes the bent plate action, and the chain of command of bent plate is pushed the trundle 1 above the little pallet 5 open, so little pallet 5 rotates around small clevis pin with head 4, the roller 6 of its lower end cambered surface and following pallet 11 breaks away from; This pallet 11 loses the constraint of little pallet 5, promptly rotates counterclockwise around its bearing pin 12 under the effect that clockwise rotates of the switch spindle 9 that links to each other with tripping spring, and the roller 7 of its lower end cambered surface and switch spindle connecting lever 8 is broken away from; Switch spindle 9 continues to clockwise rotate under the continuation effect of tripping spring, drive insulated tension pole 10 actions hinged with main shaft connecting lever 8 other ends, and then the moving conductive rod in the straightening mechanism of drive back moves downward the realization breaker open operation.If close a floodgate, each parts is got back to state among the figure again under switching-in spring is the driving in power source again.
In Fig. 2,1 is the operating mechanism case, and 2 is insulator, and 3 is last outlet seat, and 4 is arc control device, and 5 are following outlet seat, and 6 is insulated tension pole.This separating brake trip gear is on the position of outlet 5 down.
The evidence of the utility model model machine is successful, and prepares to be used for the new product that the applicant manufactures experimently.
Claims (1)
1, a kind of breaker open operation trip gear can be against on the roller (7) of main shaft connecting lever (8) with its end cambered surface around the pallet (11) that bearing pin (12) rotates, and it is characterized in that:
On pallet (11), also have a little pallet (5) that can rotate around small clevis pin with head (4), and the end cambered surface of little pallet (5) is against on the roller (6) of pallet (11); The trundle (1) of little pallet (5) upper end be against with the contacted bent plate of separating brake actuator (hand push button or electromagnet) on; Be with torsion spring (3) on the small clevis pin with head (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99257677 CN2408560Y (en) | 1999-12-24 | 1999-12-24 | Tripping device for breaker knife switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99257677 CN2408560Y (en) | 1999-12-24 | 1999-12-24 | Tripping device for breaker knife switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2408560Y true CN2408560Y (en) | 2000-11-29 |
Family
ID=34040507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99257677 Expired - Fee Related CN2408560Y (en) | 1999-12-24 | 1999-12-24 | Tripping device for breaker knife switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2408560Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102034622A (en) * | 2009-09-24 | 2011-04-27 | 厦门福森达电气有限公司 | Half shaft and fastening arm fastening mechanism for switch operating mechanism |
| CN103489670A (en) * | 2013-09-22 | 2014-01-01 | 陕西得瑞电力设备有限责任公司 | Compact type brake separating and tripping device for spring operating mechanism |
-
1999
- 1999-12-24 CN CN 99257677 patent/CN2408560Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102034622A (en) * | 2009-09-24 | 2011-04-27 | 厦门福森达电气有限公司 | Half shaft and fastening arm fastening mechanism for switch operating mechanism |
| CN103489670A (en) * | 2013-09-22 | 2014-01-01 | 陕西得瑞电力设备有限责任公司 | Compact type brake separating and tripping device for spring operating mechanism |
| CN103489670B (en) * | 2013-09-22 | 2016-09-21 | 陕西得瑞电力设备有限责任公司 | A kind of compact Sub-gate release device for spring operating mechanism |
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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 |