CN201417684Y - Novel electromagnetic type operating mechanism for high-voltage switchgear - Google Patents
Novel electromagnetic type operating mechanism for high-voltage switchgear Download PDFInfo
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- CN201417684Y CN201417684Y CN2009201633167U CN200920163316U CN201417684Y CN 201417684 Y CN201417684 Y CN 201417684Y CN 2009201633167 U CN2009201633167 U CN 2009201633167U CN 200920163316 U CN200920163316 U CN 200920163316U CN 201417684 Y CN201417684 Y CN 201417684Y
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- output shaft
- separating brake
- electromagnetic type
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Abstract
The present utility model relates to an electromagnetic type operating mechanism applied in a high voltage switch electric field, specifically relating to an operating mechanism for a vacuum contactor. The electromagnetic type operating mechanism comprises a mechanism output shaft 12 for directly outputting torque, a spline housing 11 having inter spaces and being installed between the mechanism output shaft 12 and a switch main shaft 10, and a convex edge 27 installed on the edge of the top of an armature 30. By improving the initial torque of an electro-magnet, the operating mechanism of theutility model prolongs the time of doing work, therefore, not only an enough switching-on speed of the switch can be assured, but also the machinery life period of the mechanism can be prolonged.
Description
Technical field
The utility model relates to the high pressure (operating mechanism of 3.6～40.5kV) circuit breakers, on-load switch, contactor, particularly vacuum contactor.
Background technology
At present, the architectural feature of known high-pressure vacuum contactor is as follows:
1. in order to reach higher mechanical endurance, design the stroke of vacuum interrupter moving contact, contacting travel, static pressure, overall dimension etc. very for a short time, the load of operating mechanism is also just very little, also just is easy to a mechanical endurance, electric life is brought up to more than 100,000 times.The problem of bringing is: short circuit making capability, short circuit interruption ability wretched insufficiency, directly jeopardize safe operation;
2. adopt the clapper-type electromagnetic iron construction, armature is fixedlyed connected Synchronous Transmission with the operation insulation board of vacuum interrupter moving contact.This has just brought following problem:
A. because armature is fixedlyed connected with the operation insulation board, and moving-mass is big, and the acceleration that same electromagnetic force produces is little, on average closing speed is the end of with regard to, short circuit making capability deficiency;
B. since armature fixedly connected with the operation insulation board, Synchronous Transmission, the time that moving component quickens lacks, the cephalomotor average speed of movable contact, especially the end speed before touching fixed contact is not high enough, also causes short circuit making capability deficiency;
3. when fuse blows, striker (being generally spring) of dress ejects in it, makes the combined floodgate of mechanism keep removing the contactor separating brake by a series of transmission device.Because adopt fixed connection, moving-mass is big, the accelerating time is short, Zhuan Ji speed ratio is lower at last, and separating brake is reliable inadequately.
4. fixedly connected with the operation insulation board of vacuum interrupter moving contact owing to armature, rather than, make mechanism can only be positioned at the back or the front of the orientation of contactor arc control device, and can not be positioned at the side by the rotating shaft transmission, inapplicable in some occasions.
Technical scheme
The purpose of this utility model is to provide a kind of novel electromagnetic operating mechanism for addressing the aforementioned drawbacks.
This electromagnetic type operating mechanism comprises: mechanism's output shaft 12 of directly exporting torque; Be installed in the gapped spline housing 11 between mechanism's output shaft 12 and the switch spindle 10; And convex edge 27 that is installed in armature 30 top sides edges.
Above-mentioned a kind of novel electromagnetic operating mechanism is characterized in that, this electromagnetic type operating mechanism also comprises: gapped shaft coupling 7, shaft coupling 8 between switch trip shaft 8 and the mechanism's separating brake semiaxis 6.
Beneficial effect
1. the beating type electromagnet reciprocating motion is directly changed into the moment of torsion output of axle, has save intermediate link;
2. improved the angular speed that passes to various switchgear main shafts;
3. improved the initial torque of electromagnet;
4. improve fuse and triggered the reliability of threading off.
Description of drawings
Fig. 1 is the front view of this electromagnetic type operating mechanism;
Fig. 2 is the end view of this electromagnetic type operating mechanism;
Fig. 3 be this electromagnetic type operating mechanism A-A to cutaway view;
Fig. 4 be this electromagnetic type operating mechanism B-B to cutaway view;
Fig. 5 be this electromagnetic type operating mechanism E-E to cutaway view;
Fig. 6 be this electromagnetic type operating mechanism C-C to D-D to cutaway view, wherein C-C to cutaway view statement be mechanism's output shaft 12 and the initial position of spline housing 11, D-D to the cutaway view statement be switch spindle 10 and the initial position of spline housing 11;
Fig. 7 be this electromagnetic type operating mechanism C-C to D-D to cutaway view, wherein C-C to cutaway view statement be mechanism's output shaft 12 α angle that turns clockwise, state when spline housing 11 turns clockwise α/2 angles, D-D to cutaway view statement be spline housing 11 α/2 angles that turn clockwise, the state when switch spindle 10 is moving;
Fig. 8 be this electromagnetic type operating mechanism C-C to D-D to cutaway view, wherein C-C to cutaway view statement be mechanism's output shaft 12 alpha+beta angle that turns clockwise, state when spline housing 11 turns clockwise (α/2+ β) angle, D-D to cutaway view statement be spline housing 11 (α/2+ β) angle that turns clockwise, the state when switch spindle 10 turns clockwise the β angle;
Fig. 9 be this electromagnetic type operating mechanism C-C to D-D to cutaway view, wherein C-C to cutaway view statement be that mechanism's output shaft 12 is rotated counterclockwise the α angle, state when spline housing 11 is rotated counterclockwise α/2 angles, D-D to cutaway view statement be that spline housing 11 is rotated counterclockwise α/2 angles, the state when switch spindle 10 rests on (α/2+ β) angle.
Among the figure: the 1-panel; The 2-auxiliary switch; The 3-closing contactor; The 4-base; The 5-countershaft; 6-separating brake semiaxis; The 7-shaft coupling; 8-switch trip shaft; The 9-shaft coupling; The 10-switch spindle; The 11-spline housing; 12-mechanism output shaft; The 13-blocking lever; 14-closes, the separating brake direction board; The 15-counter; 16-separating brake turn-knob; The 17-transmission crank arm; The 18-sensitive switch; 19-in flakes; 20-auxiliary switch connecting lever; The 21-returning pull-spring; The 22-pulley; 23-return torsion spring; The 24-yoke; The 25-pole shoe; The 26-closing coil; The 27-convex edge; The 28-connecting lever; The 29-roller; 30-armature; The 31-switching winding; 32-dropout plate; 33-return torsion spring; 34-closes a floodgate and keeps pallet; The 35-connecting lever; 36-in flakes.
Specific embodiment
This electromagnetic type operating mechanism comprises:
(1) panel 1-identifies the function of various executive components;
(2) auxiliary switch 2-countershaft 5 drives the auxiliary switch action by transmission crank arm 17, connecting plate 19, auxiliary switch connecting lever 20, because countershaft 5 and switch spindle 10 synchronous (stating (5) bar as follows), this just finally makes that the main contacts of auxiliary switch and contactor (or circuit breaker) is synchronous, has represented the state of main switch;
(3) closing contactor 3-connects and cuts off the switch control element of closing coil 26 galvanic circles;
(4) base 4-installs and fixes each all parts in the above, constitutes complete operating mechanism;
(5) countershaft 5-switch spindle 10 by connecting lever 28, in flakes 36, connecting lever 35 drives countershafts 5 actions, the state of switch spindle 10 that made countershaft 5 state responses;
(6) separating brake semiaxis 6-just often keeps initial position under return torsion spring 23 effect, and stopping closes a floodgate keeps pallet 34 to rotate counterclockwise, and it is motionless to make switch spindle 10 remain on closing position;
(7) shaft coupling 7-is installed in an end of separating brake semiaxis 6, and when switch is threaded off automatically (as the fuse action), switch trip shaft 8 drives shaft coupling 9 and rotates, and shaft coupling 9 drives shaft coupling 7 again and rotates, and drives separating brake semiaxis 6 at last and rotates counterclockwise.
(8) switch trip shaft 8-is installed on the switch, rotates counterclockwise when switch is threaded off automatically, drives shaft coupling 9 and rotates;
(9) shaft coupling 9-is installed on the switch trip shaft 8, and when fuse triggered, the switch trip shaft drove shaft coupling 9 and rotates counterclockwise;
(10) switch spindle 10-is enclosed within the spline housing 11, rotates (non-synchronous fully) with spline housing 11, drives the main switch action;
(11) spline housing 11-left end is enclosed within on mechanism's output shaft 12, and right-hand member is enclosed within on the switch spindle 10 (sees above-mentioned (9) bar), gives switch spindle 10 (non-synchronous fully) transmission of torque of mechanism's output shaft 12;
(12) mechanism's output shaft 12-armature 30 is fixed on above mechanism's output shaft 12, rotates around mechanism's output shaft 12 under the electromagnetic force effect, and electromagnetic torque is converted to mechanical force moment by 12 outputs of mechanism's output shaft;
Countershaft 5 clockwise rotated with switch spindle 10 when (13) blocking lever 13-closed a floodgate, and drove connecting lever 17 and rotated, and drove blocking lever 13 and moved down (being used for other switch element of locking);
(14) close, separating brake direction board 14-is installed on the blocking lever 13, shows the state of main switch;
(15) counter 15-is connected on the blocking lever 13, the action frequency of record main switch;
(16) separating brake turn-knob 16-is installed in the left side of separating brake semiaxis 6, but directly rotates counterclockwise just separating brake;
(17) transmission crank arm 17-is installed on the countershaft 5, rotates synchronously with switch spindle 10, triggers sensitive switch 18 actions after combined floodgate puts in place;
(18) sensitive switch 18-is installed in transmission crank arm 17 next doors, and the action back that is triggered cuts off the power supply of closing contactor 3 coils, and simultaneously, the power supply of closing coil 26 is also just cut;
(19) 19-is connected between transmission crank arm 17 and the auxiliary switch connecting lever 20 in flakes, makes auxiliary switch 2 and main switch synchronization action;
(20) auxiliary switch connecting lever 20-be installed in flakes 19 and auxiliary switch 2 between, transmission is used;
(21) returning pull-spring 21-one end is fixed on the armature 30, and an end is fixed on the base 4, when closing coil 26 dead electricity, armature 30 retracted counterclockwise puts in place;
(22) pulley 22-is installed on the countershaft 5, supports returning pull-spring 21;
(23) return torsion spring 23-is installed on the separating brake semiaxis 6, makes its free return after separating brake semiaxis 6 rotates counterclockwise;
(24) yoke 24-is installed on the base 4, constitutes magnetic circuit;
(25) pole shoe 25-is installed on the yoke 24, improves initial magnetic force;
(26) closing coil 26-is installed on the yoke 24, and the energising back produces exciting current;
(27) convex edge 27-is installed on the armature 30, improves initial magnetic force;
(28) connecting lever 28-is installed on the switch spindle 10, drives 36 actions in flakes;
(29) roller 29-is installed on the connecting lever 28, and withstanding on behind the combined floodgate closes a floodgate keeps reducing resistance during separating brake on the pallet 34;
(30) armature 30-is installed on mechanism's output shaft 12, constitutes the part of magnetic circuit;
(31) switching winding 31-is installed on the base 4, the moving iron core action in energising back, bump dropout plate 32;
(32) dropout plate 32-is installed on the separating brake semiaxis 6, is subjected to switching winding 31 moving bump unshakable in one's determination back drive separating brake semiaxis 6 and rotates counterclockwise, and makes the switch separating brake;
(33) return torsion spring 33-is installed in to close a floodgate and keeps on the pallet 34, makes its action back return;
(34) combined floodgate keeps pallet 34-to be installed on the base 4, has withstood roller 29 after being stopped by separating brake semiaxis 6, makes switch spindle 10 remain on closing position;
(35) connecting lever 35-is installed in countershaft 5 and in flakes between 36, drives countershaft 5 and switch spindle 10 synchronization actions;
(36) 36-is installed between connecting lever 28 and the connecting lever 35 in flakes, and transmission is used.
Need to prove, the not detailed switch trip shaft 8 that illustrates among the figure, switch trip shaft 8 is a kind of parts well known in the art, when it is connected with mechanism's separating brake semiaxis 6 of the application, gapped shaft coupling 7, shaft coupling 9 is set between the two.
Adopt the clapper-type electromagnetic iron construction, utilize directly output torque of mechanism's output shaft 12; Adopt gapped spline housing 11 to be connected between mechanism's output shaft 12 and the switch spindle 10, referring to accompanying drawing 1.When passing through electric current in the closing coil 26, the magnetic flux of generation constitutes closed magnetic circuits by yoke 24, pole shoe 25, air-gap, armature 30, mechanism's output shaft 12.At this moment produce electromagnetic attraction at the pole shoe 25 of air-gap both sides and 30 in armature, make armature 30 around mechanism's output shaft 12 to the motion of pole shoe 25 directions, mechanism's output shaft 12 comes out torque transmitting.Rotated the idle running angle of α/2 when mechanism's output shaft 12 after (α is the idle running angle of 10 of mechanism's output shaft 12 and switch shafts), at first with spline housing 11 keys-key contacts (spline housing 11 is in free state), drive the spline housing 11 idle running angle of rotation alpha/2 again, 10 key-key contacts transmissions again of spline housing 11 and switch spindle.Owing to there is the idle running angle of α, when spline housing 11 and 10 keys of switch spindle-key contacts transmission, certain initial velocity has been arranged, the initial angle speed when having improved switch spindle 10 combined floodgates.
The utility model is described in further detail below in conjunction with accompanying drawing 1～9 and embodiment:
1. making process:
1. closing contactor 3 is subjected to by electric adhesive connection closing coil 26;
2. armature 30 is subjected to rotate to pole shoe 25 around mechanism's output shaft 12 under the electromagnetic force effect;
After armature 30 adds convex edge 27, make effective pitch smaller of air-gap, strengthened magnetic field, improved the starting force that closes a floodgate.
3. mechanism's output shaft 12 begins to drive spline housing 11 continuation rotations after turning over α/2 idle running angles, referring to the original position shown in the accompanying drawing 6;
4. spline housing 11 began to drive switch spindle 10 rotations after mechanism's output shaft 12 drive spline housings 11 turned over α/2 idle running angles again, and this moment, state was seen shown in the accompanying drawing 7;
Owing in the α scope of idle running angle, quicken when mechanism's output shaft 12 closes a floodgate, drive the initial angle speed raising that will make switch spindle 10 when switch spindle 10 is rotated again, the average speed of combined floodgate has also just increased.
5. mechanism's output shaft 12 turns over the alpha+beta angle, and spline housing 11 turns over α/2+ β angle, and switch spindle 10 turns over the β angle, makes switch spindle 10 move to the combined floodgate holding position, sees accompanying drawing 8;
6. switch spindle 10 is closed a floodgate when putting in place, and transmission crank arm 17 is rotated synchronously with switch spindle 10, triggers sensitive switch 18 actions, and the maintenance power supply of contactor 3 is cut off in sensitive switch 18 actions, and its main contacts has also just excised the power supply of closing coil 26;
7. switch spindle 10 begins under the effect of sluice separating spring (not shown) to (counterclockwise) rotation in the other direction, and maintenance pallet 34 withstands and can't return but roller 29 is closed a floodgate, and makes switch remain on closing position.See accompanying drawing 4;
8. the positional information of switch spindle 10 also by connecting plate 35, countershaft 5, in flakes 19, auxiliary switch connecting lever 20 passes to auxiliary switch 2, switches to closing position by the separating brake position, sees accompanying drawing 1,2,4;
9. armature 30 returns (counterclockwise rotating) under the effect of returning pull-spring 21, is stopped by spline housing 11 after turning over α idle running angle, and spline housing 11 is stopped (switch spindle 10 is closed a floodgate keeps pallet 34 to withstand and can't return) by switch spindle 10;
10. armature 30 is parked in the position, back of closing a floodgate at last, sees accompanying drawing 3.
2. separating brake process
1. work as switching winding 31 and be subjected to electricity, the dropout plate 32 on the moving bump separating brake semiaxis 6 unshakable in one's determination is rotated counterclockwise separating brake semiaxis 6, and separating brake semiaxis 6 gets out of the way the maintenance pallet 34 that closes a floodgate, and allows it to rotate counterclockwise, and roller 29 is no longer by its stop.Switch spindle 10 will be rotated counterclockwise under the effect of sluice separating spring like this, drive switch and move to the separating brake direction;
When switch spindle 10 begins to be rotated counterclockwise, owing to be connected by gapped spline housing 11 with mechanism output shaft 12, only turning over behind the α idle running angle just, lead agency output shaft 12 and armature 30 move together, and switch from the corner β of the separating brake that closes a floodgate less than idle running angle α, so in the separating brake process switch spindle 10 lead agency output shaft 12 and armature 30 do not move together.Because the quality of motion is little, average separating brake angular speed is easy to improve;
2. after separating brake puts in place, buffer (this figure does not represent) absorption portion kinergety, and spacing stop, armature 30 also forwards position behind the separating brake to from the position, back of closing a floodgate;
3. the positional information of switch spindle also by in flakes 36, countershaft 5, in flakes 19, auxiliary switch connecting lever 20 passes to auxiliary switch 2, switches to the separating brake position by closing position.
3. striker dropout process
If this mechanism is used on on-load switch or the contactor, also to be used with fuse, striker ejects and makes switch dropout tripping operation after fuse blows.If striker power is not enough, just might can't allows switch thread off and trip.The utility model is to realize (seeing accompanying drawing 5) like this: after striker ejected, impact switch trip shaft 8 rotated counterclockwise, and drives side shaft coupling 9 again and is rotated counterclockwise.Just contact after turning over idle running angle γ, drive separating brake semiaxis 6 again and be rotated counterclockwise, switch is threaded off trip with operating mechanism side shaft coupling 7.Owing in the process that turns over idle running angle γ, be an accelerator, when striking mechanism side shaft coupling 7, had certain initial velocity, strengthened the power of bump, make dropout more reliable.
Claims (2)
1. a novel high-pressure switchgear electromagnetic type operating mechanism is characterized in that, comprising: mechanism's output shaft (12) of directly exporting torque; Be installed in the gapped spline housing (11) between mechanism's output shaft (12) and the switch spindle (10); And convex edge (27) that is installed in armature (30) top sides edge.
2. a kind of novel electromagnetic operating mechanism according to claim 1 is characterized in that, this electromagnetic type operating mechanism also comprises: gapped first shaft coupling (7) between switch trip shaft (8) and the mechanism's separating brake semiaxis (6) and second shaft coupling (9).Wherein, first shaft coupling (7) is fixedlyed connected with separating brake semiaxis (6), and second shaft coupling (9) is fixedlyed connected with switch trip shaft (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201633167U CN201417684Y (en) | 2009-07-07 | 2009-07-07 | Novel electromagnetic type operating mechanism for high-voltage switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201633167U CN201417684Y (en) | 2009-07-07 | 2009-07-07 | Novel electromagnetic type operating mechanism for high-voltage switchgear |
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| Publication Number | Publication Date |
|---|---|
| CN201417684Y true CN201417684Y (en) | 2010-03-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201633167U Expired - Fee Related CN201417684Y (en) | 2009-07-07 | 2009-07-07 | Novel electromagnetic type operating mechanism for high-voltage switchgear |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2575153A3 (en) * | 2011-09-30 | 2015-03-04 | Fritz Driescher KG Spezialfabrik für Elektrizitätswerksbedarf GmbH & Co. KG | Switch pole unit |
| CN108630482A (en) * | 2017-03-21 | 2018-10-09 | 厦门华电开关有限公司 | The operating mechanism of earthing switch |
| CN114300301A (en) * | 2021-12-27 | 2022-04-08 | 江苏新纪元电器科技有限公司 | High-voltage vacuum circuit breaker double-module operating mechanism with adjusting mechanism |
-
2009
- 2009-07-07 CN CN2009201633167U patent/CN201417684Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2575153A3 (en) * | 2011-09-30 | 2015-03-04 | Fritz Driescher KG Spezialfabrik für Elektrizitätswerksbedarf GmbH & Co. KG | Switch pole unit |
| CN108630482A (en) * | 2017-03-21 | 2018-10-09 | 厦门华电开关有限公司 | The operating mechanism of earthing switch |
| CN108630482B (en) * | 2017-03-21 | 2024-02-20 | 厦门华电开关有限公司 | Operating mechanism of grounding switch |
| CN114300301A (en) * | 2021-12-27 | 2022-04-08 | 江苏新纪元电器科技有限公司 | High-voltage vacuum circuit breaker double-module operating mechanism with adjusting mechanism |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 100085 Beijing Haidian District HAOSI Xiaoying East Road home 3-1-301 Patentee after: Tu Dashi Address before: 100085 Beijing city Haidian District Xiao Ying Road No. 17 Building No. 3 power L402 Patentee before: Tu Dashi |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100303 Termination date: 20150707 |
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| EXPY | Termination of patent right or utility model |