CN202339884U - Permanent operating mechanism - Google Patents
Permanent operating mechanism Download PDFInfo
- Publication number
- CN202339884U CN202339884U CN2011204675313U CN201120467531U CN202339884U CN 202339884 U CN202339884 U CN 202339884U CN 2011204675313 U CN2011204675313 U CN 2011204675313U CN 201120467531 U CN201120467531 U CN 201120467531U CN 202339884 U CN202339884 U CN 202339884U
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- China
- Prior art keywords
- drive rod
- permanent magnet
- connecting lever
- mounting panel
- end cap
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- Expired - Fee Related
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Abstract
The utility model relates to a permanent operating mechanism, in particular to a permanent operating mechanism which is applied to an outdoor high-voltage alternating current vacuum circuit breaker and used for providing current for switching on/off the circuit breaker and cutting off fault current. The permanent operating mechanism is characterized in that a front mechanism mounting board and a rear mechanism mounting board are fixedly connected, a manual switching-on shaft is movably connected with one end of the rear mechanism mounting board through a manual switching-on cam and passes through the front mechanism mounting board, and a converting shaft is respectively connected with an auxiliary switch, a permanent driving device, a roller and one end of a connecting rod and is mounted between the front mechanism mounting board and the rear mechanism board. The permanent operating mechanism has the following advantages: the structure is simple and compact, few parts are used and the quantity of the used parts is one thirds of the quantity of parts of a spring operating mechanism; the operating reliability is high, the operating life of the permanent operating mechanism is 30,000 times and is greatly improved as compared with the operating life of the spring operating mechanism which is only 10,000 times; and the permanent operating mechanism is a non-closed mechanism, fault rate is reduced and the permanent operating mechanism is basically maintenance-free in the whole service life.
Description
Technical field
The utility model relates to a kind of permanent-magnet manipulating mechanism, specifically a kind ofly is used for the outdoor high-voltage alternating current vacuum circuit-breaker, for the divide-shut brake of circuit breaker and cut-off the permanent-magnet manipulating mechanism that fault current provides power.
Background technology
In the middle pressure electrical power trans mission/distribution system of China; ZW20 series outdoor high-voltage vacuum breaker product is a staple product in this field; Because of its galvanic circle and operating mechanism are sealed in the SF6 gas, have environmental suitability preferably, use amount is more and more very big in recent years.But the operating mechanism of this kind of circuit breaker from the exploitation since, what all be to use is spring operating mechanism.Its spring operating mechanism part is many, and complex structure all than higher, causes this mechanism reliability not high to the requirement on machining accuracy of part and matching requirements, often occurs refusing branch, refuses to close phenomenon, and because of mechanism is sealed in the gas, when breaking down, safeguard inconvenient.
Summary of the invention
The purpose of the utility model is the deficiency that overcomes prior art, provides a kind of simple in structure, and part is few, and the operating mechanism that reliability is high is used for replacing spring operating mechanism, reaching the operating reliability that improves product, and in useful life period, realizes non-maintaining.
In order to achieve the above object; The utility model has designed a kind of permanent-magnet manipulating mechanism; Comprise manual brake separating cam, transaxle, auxiliary switch, connecting rod, permanent magnet driving device, preceding mechanism mounting panel, back mechanism mounting panel, manual brake separating axle, roller; Wherein, This motion of mechanism output of permanent magnet driving device control is characterized in that: mechanism's mounting panel is fixedly connected with back mechanism mounting panel before described, an end of mechanism's mounting panel and pass preceding mechanism mounting panel after described manual brake separating axle is movably connected in through the manual brake separating cam; Described permanent magnet driving device is installed in the other end of back mechanism mounting panel; The top of mechanism mounting panel before described auxiliary switch is fixedly connected on, described transaxle connect an end of auxiliary switch, permanent magnet driving device, roller and connecting rod respectively and be installed on before between mechanism's mounting panel and the back mechanism mounting panel, the other end of said connecting rod connects the circuit breaker main shaft; The energy of said permanent magnet driving device output is changed through transaxle, and is delivered to the circuit breaker main shaft through connecting rod, thus the divide-shut brake action of control circuit breaker.
Described permanent magnet driving device is the monostable single coil structure, mainly is made up of separating brake end cap, cushion block, magnetic guiding loop, permanent magnet, coil, shell, moving iron core, combined floodgate end cap and drive rod; The two ends of said shell are assembled separating brake end cap, combined floodgate end cap respectively; Said combined floodgate end cap is the notch cuttype structure, and coil is assemblied in the outer ring of notch cuttype structure flange, coil top assembling permanent magnet; The inner ring assembling magnetic guiding loop of permanent magnet; Said cushion block is assemblied between permanent magnet, magnetic guiding loop and the separating brake end cap, and said moving iron core is assemblied in the top of notch cuttype structure flange, and the section of moving iron core is the structure of falling the T-shape; Pilot hole and activity that the assembling that should the structure of falling the T-shape matches with shell, coil, magnetic guiding loop, cushion block, said drive rod pass the combined floodgate end cap respectively, move iron core and separating brake end cap center are assemblied between separating brake end cap and the combined floodgate end cap; Said coil drive is accomplished the circuit-breaker switching on-off action, and the electromagnetic force of permanent magnet keeps the breaker closing action.
Described transaxle is connected with two main shaft connecting rods on being evenly distributed on central shaft by central shaft that connecting lever, first drive rod connect connecting lever, second drive rod connects connecting lever and forms; One end of said connecting rod is connected connecting lever and is fixedly connected with two main shaft connecting rods; Said first drive rod connects connecting lever and comprises underarm and side arm; Second drive rod connects connecting lever and comprises underarm, side arm and upper arm; The underarm that first and second drive rods connect connecting lever is fixedly connected with an end of drive rod in the permanent magnet driving device, side arm is fixedly connected with roller, and the upper arm that second drive rod connects connecting lever is fixedly connected with auxiliary switch.
Said first drive rod connects the underarm of connecting lever, underarm that second drive rod connects connecting lever and is connected angle between the connecting lever with the main shaft connecting rod and is α=150～160 °.
The utility model is compared with prior art, has following advantage:
1. simple and compact for structure, part is few, and its number of parts has only 1/3 of spring operating mechanism;
2. operating reliability is high, and its operation lifetime can reach more than 30000 times, compares the operation lifetime that spring operating mechanism has only 10000 times, has improved a lot;
3. non-tight mechanism has reduced failure rate, and is non-maintaining basically in whole length of life.
Description of drawings
Combine accompanying drawing that the utility model is described further at present:
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the vertical view of the utility model structural representation.
Fig. 3 is the structural representation of permanent magnet driving device in the utility model.
Fig. 4 (a) is the structural representation of transaxle in the utility model.
Fig. 4 (b) is the end view of conversion axle construction sketch map in the utility model.
Referring to Fig. 1 and Fig. 2,1 is the manual brake separating cam; 2 is transaxle; 3 is auxiliary switch; 4 is connecting rod; 5 is permanent magnet driving device; 6 is preceding mechanism mounting panel; 7 is back mechanism mounting panel; 8 is the manual brake separating axle; 9 is roller; 10 is the circuit breaker main shaft.
Referring to Fig. 3,51 is the separating brake end cap; 52 is cushion block; 53 is magnetic guiding loop; 54 is permanent magnet; 55 is coil; 56 is shell; 57 are moving iron core; 58 is the combined floodgate end cap; 59 is drive rod.
Referring to Fig. 4 (a) and Fig. 4 (b), 21 is central shaft; 22 are main shaft connecting rod connection connecting lever; 23 is that first drive rod connects connecting lever; 24 is that second drive rod connects connecting lever.
Embodiment
As depicted in figs. 1 and 2; The utility model comprises manual brake separating cam 1, transaxle 2, auxiliary switch 3, connecting rod 4, permanent magnet driving device 5, preceding mechanism mounting panel 6, back mechanism mounting panel 7, manual brake separating axle 8, roller 9; Wherein, This motion of mechanism output of permanent magnet driving device 5 controls, mechanism's mounting panel 6 before omitting among Fig. 1.Before mechanism mounting panel 6 be fixedly connected with back mechanism's mounting panel 7; Manual brake separating axle 8 is movably connected in an end of back mechanism mounting panel 7 and passes preceding mechanism mounting panel 6 through manual brake separating cam 1; Permanent magnet driving device 5 is installed in the other end of back mechanism mounting panel 7; The top of mechanism's mounting panel 6 before auxiliary switch 3 is fixedly connected on; Transaxle 2 connect an end of auxiliary switch 3, permanent magnet driving device 5, roller 9 and connecting rod 4 respectively and be installed on before between mechanism mounting panel 6 and the back mechanism mounting panel 7, the other end of connecting rod 4 connects circuit breaker main shaft 10; The energy of permanent magnet driving device 5 outputs is changed through transaxle 2, and is delivered to circuit breaker main shaft 10 through connecting rod 4, thus the divide-shut brake action of control circuit breaker.
Referring to Fig. 3, permanent magnet driving device 5 is the monostable single coil structure, mainly is made up of separating brake end cap 51, cushion block 52, magnetic guiding loop 53, permanent magnet 54, coil 55, shell 56, moving iron core 57, combined floodgate end cap 58 and drive rod 59; The two ends of shell 56 are assembled separating brake end cap 51, combined floodgate end cap 58 respectively; Combined floodgate end cap 58 is the notch cuttype structure; Coil 55 is assemblied in the outer ring of notch cuttype structure flange; Coil 55 tops assembling permanent magnet 54, the inner ring assembling magnetic guiding loop 53 of permanent magnet 54, cushion block 52 is assemblied between permanent magnet 54, magnetic guiding loop 53 and the separating brake end cap 51; Moving iron core 57 is assemblied in the top of notch cuttype structure flange; The section of moving iron core 57 be the structure of falling the T-shape, the assembling that matches with shell 56, coil 55, magnetic guiding loop 53, cushion block 52 of this structure of falling the T-shape, and pilot hole and activity that drive rod 59 passes combined floodgate end cap 58 respectively, move iron core 57 and separating brake end cap 51 centers are assemblied between separating brake end cap 51 and the combined floodgate end cap 58; Coil 55 drives accomplishes the circuit-breaker switching on-off action, and the electromagnetic force of permanent magnet 54 keeps the breaker closing action.
Shown in Fig. 4 (a) and Fig. 4 (b), transaxle 2 is connected with two main shaft connecting rods on being evenly distributed on central shaft by central shaft 21 that connecting lever 22, first drive rod connect connecting lever 23, second drive rod connects connecting lever 24 and forms; One end of connecting rod 4 is connected connecting lever 22 and is fixedly connected with two main shaft connecting rods; First drive rod connects connecting lever 23 and comprises underarm and side arm; Second drive rod connects connecting lever 24 and comprises underarm, side arm and upper arm; The underarm of first drive rod connection connecting lever 23 is connected connecting lever 24 with second drive rod underarm is fixedly connected with an end of drive rod 59 in the permanent magnet driving device, both side arms are fixedly connected with roller; The upper arm that second drive rod connects connecting lever 24 is fixedly connected with auxiliary switch 3, and in mechanism action, drive rod 59 connects the upper arm of second drive rod connection connecting lever 24 and stirs auxiliary switch 3; Realize the switching of auxiliary switch 3, thereby be used for the on off state break-make signal of telecommunication being provided to the external control device.First drive rod connects the underarm of connecting lever 23, underarm that second drive rod connects connecting lever 24 and is connected angle between the connecting lever 22 with the main shaft connecting rod and is α=150～160 °, and when practical operation, the angle of the best is α=155.5 °.
The permanent-magnet manipulating mechanism of the utility model is mainly used on the ZW20 outdoor high-voltage vacuum breaker; Its motion output is realized by permanent magnet driving device; Permanent magnet driving device is the monostable single coil structure; Accomplish the driving of breaking-closing operating by a coil, the electromagnetic force that keeps being given birth to by permanent magnet of closing a floodgate realizes.The energy of permanent magnet driving device output is changed through transaxle, and is delivered to the circuit breaker main shaft through connecting rod, to reach the divide-shut brake action of circuit breaker.
The operation principle of the utility model is following:
One, closing operation:
When circuit breaker is in gate-dividing state; The coil 55 of permanent magnet driving device 5 passes through electric current; Produce electromagnetic force, moving iron core 57 motions of this power driving, the motion of moving iron core 57 drives drive rod 59 and in the pilot hole of separating brake end cap 51 and combined floodgate end cap 58, moves; The transaxle that moved through mechanism 2 of drive rod 59 outputs and connecting rod 4 drive circuit breaker main shaft 10 motion counterclockwise, thereby accomplish closing operation.
After the combined floodgate actuating was accomplished, coil 55 electric currents in the permanent magnet driving device 5 were cut off, and moving iron core 57 makes circuit breaker remain on "on" position because the magnetic force that permanent magnet 54 is produced is pull-in on the combined floodgate end cap 58.
Two, sub-switching operation:
When circuit breaker was in "on" position, the coil 55 of permanent magnet driving device 5 was through the opposite direction electric current, and the electromagnetic force that the electromagnetic force of its generation and permanent magnet 54 produce is opposite; When electric current is enough big; The electromagnetic force that the electromagnetic force that coil 55 produces produces greater than permanent magnet 54, moving iron core 57 moves round about, drives drive rod 59 motions; And drive circuit breaker main shafts 10 through transaxle 2 and connecting rod 4 and clockwise rotate, thereby accomplish sub-switching operation.
Three, manual brake separating operation:
When the urgent on the spot separating brake of needs; Rotate through operation manual brake separating axle 8 clockwise directions, drive manual brake separating cam 1 and rotate, it rotates through nip drum 9 transaxle 2 is rotated; Thereby the moving iron core 57 that makes permanent magnet driving device 5 overcomes the electromagnetic force of permanent magnet 54, accomplishes sub-switching operation.
The utility model is simple and compact for structure, and part is few, and its number of parts has only 1/3 of spring operating mechanism; Operating reliability is high, and its operation lifetime can reach more than 30000 times, compares the operation lifetime that spring operating mechanism has only 10000 times, has improved a lot; Non-tight mechanism has reduced failure rate, and is non-maintaining basically in whole length of life.
Claims (4)
1. permanent-magnet manipulating mechanism; Comprise manual brake separating cam (1), transaxle (2), auxiliary switch (3), connecting rod (4), permanent magnet driving device (5), preceding mechanism mounting panel (6), back mechanism's mounting panel (7), manual brake separating axle (8), roller (9); Wherein, Permanent magnet driving device (5) is controlled this motion of mechanism output; It is characterized in that: mechanism's mounting panel (6) is fixedly connected with back mechanism's mounting panel (7) before described; Described manual brake separating axle (8) is movably connected in an end of back mechanism's mounting panel (7) and passes preceding mechanism's mounting panel (6) through manual brake separating cam (1), and described permanent magnet driving device (5) is installed in the other end of back mechanism's mounting panel (7), the top of mechanism's mounting panel (6) before described auxiliary switch (3) is fixedly connected on; Described transaxle (2) connects an end of auxiliary switch (3), permanent magnet driving device (5), roller (9) and connecting rod (4) respectively and is installed between preceding mechanism's mounting panel (6) and the back mechanism's mounting panel (7), and the other end of said connecting rod (4) connects circuit breaker main shaft (10).
2. permanent-magnet manipulating mechanism according to claim 1; It is characterized in that: described permanent magnet driving device (5) is the monostable single coil structure, mainly is made up of separating brake end cap (51), cushion block (52), magnetic guiding loop (53), permanent magnet (54), coil (55), shell (56), moving iron core (57), combined floodgate end cap (58) and drive rod (59); The two ends of said shell (56) are assembled separating brake end cap (51), combined floodgate end cap (58) respectively; Said combined floodgate end cap (58) is the notch cuttype structure; Coil (55) is assemblied in the outer ring of notch cuttype structure flange; Coil (55) top assembling permanent magnet (54), the inner ring assembling magnetic guiding loop (53) of permanent magnet (54), said cushion block (52) is assemblied between permanent magnet (54), magnetic guiding loop (53) and the separating brake end cap (51); Said moving iron core (57) is assemblied in the top of notch cuttype structure flange; The section of moving iron core (57) be the structure of falling the T-shape, the assembling that matches with shell (56), coil (55), magnetic guiding loop (53), cushion block (52) of this structure of falling the T-shape, and pilot hole and activity that said drive rod (59) passes combined floodgate end cap (58) respectively, move iron core (57) and separating brake end cap (51) center are assemblied between separating brake end cap (51) and the combined floodgate end cap (58).
3. permanent-magnet manipulating mechanism according to claim 1 and 2 is characterized in that: described transaxle (2) is connected with two main shaft connecting rods on being evenly distributed on central shaft by central shaft (21) that connecting lever (22), first drive rod connect connecting lever (23), second drive rod connects connecting lever (24) and forms; One end of said connecting rod (4) is connected connecting lever (22) and is fixedly connected with two main shaft connecting rods; Said first drive rod connects connecting lever (23) and comprises underarm and side arm; Second drive rod connects connecting lever (24) and comprises underarm, side arm and upper arm; The underarm of first drive rod connection connecting lever (23) is connected connecting lever (24) with second drive rod underarm is fixedly connected with an end of drive rod (59) in the permanent magnet driving device, side arm is fixedly connected with roller (9), and the upper arm that second drive rod connects connecting lever (24) is fixedly connected with auxiliary switch (3).
4. permanent-magnet manipulating mechanism according to claim 3 is characterized in that: said first drive rod connects the underarm of connecting lever (23), underarm that second drive rod connects connecting lever (24) and is connected angle between the connecting lever (22) with the main shaft connecting rod and is α=150～160 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204675313U CN202339884U (en) | 2011-11-21 | 2011-11-21 | Permanent operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204675313U CN202339884U (en) | 2011-11-21 | 2011-11-21 | Permanent operating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202339884U true CN202339884U (en) | 2012-07-18 |
Family
ID=46488573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204675313U Expired - Fee Related CN202339884U (en) | 2011-11-21 | 2011-11-21 | Permanent operating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202339884U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426975A (en) * | 2011-11-21 | 2012-04-25 | 上海东自电气有限公司 | Permanent magnetic operation mechanism |
| CN107170636A (en) * | 2017-06-01 | 2017-09-15 | 嘉润电气科技有限公司 | A kind of vacuum single phase ac contactor |
| CN107230576A (en) * | 2017-07-24 | 2017-10-03 | 环控电力科技有限公司 | Outdoor permanent magnetic vacuum circuit breaker on-load manual divide-shut brake mechanism |
-
2011
- 2011-11-21 CN CN2011204675313U patent/CN202339884U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426975A (en) * | 2011-11-21 | 2012-04-25 | 上海东自电气有限公司 | Permanent magnetic operation mechanism |
| CN107170636A (en) * | 2017-06-01 | 2017-09-15 | 嘉润电气科技有限公司 | A kind of vacuum single phase ac contactor |
| CN107230576A (en) * | 2017-07-24 | 2017-10-03 | 环控电力科技有限公司 | Outdoor permanent magnetic vacuum circuit breaker on-load manual divide-shut brake mechanism |
| CN107230576B (en) * | 2017-07-24 | 2019-06-18 | 环控电力科技有限公司 | Outdoor permanent magnetic vacuum circuit breaker on-load manual divide-shut brake mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Shanghai Dongzi Electric Co.,Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Xia Weihong Document name: payment instructions |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120718 Termination date: 20201121 |