CN103280366B - Disconnecting switch grounding component - Google Patents
Disconnecting switch grounding component Download PDFInfo
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- CN103280366B CN103280366B CN201310249128.7A CN201310249128A CN103280366B CN 103280366 B CN103280366 B CN 103280366B CN 201310249128 A CN201310249128 A CN 201310249128A CN 103280366 B CN103280366 B CN 103280366B
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Abstract
The invention relates to a disconnecting switch grounding component which comprises an insulating base. The insulating base is fixedly provided with a motor support, a position switch SB1, a position switch SB2, three axle seats and three incoming line connecting bolt terminals, and the motor support is fixedly provided with a single-phase AC motor. An electrode shaft of the single-phase AC motor is fixedly provided with a driving wheel which is meshed with a movable arm gear, the movable arm gear is one quarter of a circular internal gear, the movable arm gear is fixedly provided with a rotating arm connecting rod, the rotating arm connecting rod is of an L shape, the short arm end of the rotating arm connecting rod is fixed on the movable arm gear, and the long arm end of the rotating arm connecting rod is fixed on a movable arm. A connecting shaft is in movable connection with a corresponding shaft seat. An electric control device is used for achieving the purpose that weak currents control strong currents, the grounding component is made to be far away from a front door plate, the probability that a metal handle of a change-over switch is charged is reduced, a wire from a major loop to the grounding component is shortened, the probability of short circuits is reduced, the handle can be rotated more flexibly, the flexibility of operation is increased, production cost is lowered, and the service life of products is prolonged.
Description
Technical field
The present invention relates to mining equipment isolating switch earthing device, particularly a kind of isolating switch grounding assembly, for mining equipment isolating switch ground connection.
Background technology
Isolating switch grounding assembly is for after isolating switch disconnects, release isolating switch load-side dump energy, plays the one protection facility of protection load-side maintainer effect.
Existing grounding assembly is a kind of mechanical structure, by the gear driven litter on change over switch handle, the outlet of isolating switch is connected with ground wire, forms grounded circuit, realizes the ground connection of isolating switch load-side.Guarantee, after grounding assembly disconnects, to leave pass and just can connect by a travel switch.The shortcoming of existing grounding assembly is: the handle due to change over switch is on Qianmen, front, makes mechanical structure must be arranged on door-plate rear, and this just causes to guide to needing the circuit of ground connection on front door with a long wire.Long wire and the folding of door-plate can make the probability of faults such as being short-circuited rise.And owing to needing to keep the reliability connected of getting an electric shock, need the spring adding large elastic force, make the rotation of the handle of change over switch not be too flexible, easily misoperation occurs, maintainer is caused danger.How to address this problem the problem just becoming those skilled in the art and will study and solve.
Summary of the invention
Object of the present invention is exactly the deficiency existed for existing design, a kind of New Type Isolating Switch grounding assembly architecture advances scheme is provided, realize vulnerabilities scan forceful electric power by electric control gear, make grounding assembly away from front door, decrease probability charged in change over switch metal handle.And shorten the length of major loop to grounding assembly wire, reduce the possibility of the accidents such as circuit for generating short circuit.In the hope of improving the security performance of change over switch, simultaneously owing to not needing by the mechanical structure on handle, making the rotation of handle more flexible, increasing the flexibility of operation, reduce production cost, improve life of product.
The present invention is realized by such technical scheme: a kind of isolating switch grounding assembly, it is characterized in that, comprise insulator foot, support of motor, single-phase AC motor, lever arm gear, tumbler connecting rod, lever arm, moving contact, insulated handle, axle bed, connecting axle and fixed contact;
Described insulator foot is rectangle, insulator foot is fixed with support of motor, position switch SB1, position switch SB2, three axle beds and three inlet wire connecting bolt terminals, support of motor fixes single-phase AC motor; The electrode axis of single-phase AC motor fixes driving wheel, driving wheel and lever arm gears meshing, lever arm gear is 1/4th of circular internal gear, tumbler connecting rod fixed by lever arm gear, tumbler connecting rod is L shape, the galianconism end of tumbler connecting rod is fixed on lever arm gear, and long arm end is fixed on lever arm;
Described lever arm is made up of left wall, intermediate arm, right wall and support arm, Zuo Bi, intermediate arm, right wall are fixed respectively a moving contact, lever arm upper end connects insulated handle, there is outlet connecting bolt intermediate arm lower end, support arm is supported between left wall, intermediate arm, right wall, make left wall, in parallel between intermediate arm and right wall, the bottom of Zuo Bi, intermediate arm and right wall is flexibly connected with corresponding axle bed respectively by connecting axle;
Described isolating switch grounding assembly, at electric wiring application process, comprises following process:
A () described intermediate arm connects ground wire N by the outlet connecting bolt of its lower end, three fixed contacts on insulator foot are connected respectively to the three-phase leading-out terminal of isolating switch QS;
B () isolating switch QS is Electromagnetic Drive, its three-phase end of incoming cables is connected in three-phase transformer T(electric diagram) input, draw single phase poaer supply from the output of three-phase voltage stabilizer; The N of three-phase transformer T is connected with 1 end of single-phase AC motor, 3 ends;
The phase line of (c) single phase poaer supply, connect 1., 3. holding of change over switch SA1,2. end link position switch S B1 one end of change over switch SA1, the other end of position switch SB1 is connected with 2 ends of single-phase AC motor, 4. the common port holding link position switch S B2 of change over switch SA1, the normally-closed contact of position switch SB2 is connected with 4 ends of single-phase AC motor, the normally opened contact of position switch SB2 is connected with the live wire of isolating switch QS closing coil, and the zero line of isolating switch closing coil is connected with the zero line of three-phase transformer T;
D () is closed a floodgate to isolating switch QS, the handle of change over switch SA1 need be turned to " combined floodgate " position, now change over switch SA1 3., 4. closed between end, that 1., 2. holds is separated, the electric current that single phase poaer supply exports holds formation loop by 4 ends of 4. end, position switch SB2, the single-phase AC motor of change over switch SA1,1 end to the N of three-phase transformer T, at this moment single-phase AC motor rotates, lever arm pinion rotation is made by gears meshing, tumbler connecting rod drives lever arm upwards to rotate, and lever arm is opened;
Before action, the normally closed point of position switch SB2 closes, normal battle disconnects, and when lever arm rotate in place, the end face of lever arm gear touches the contact of position switch SB2, now, the state of position switch SB2 is: 1st, normally-closed contact disconnects, and make single-phase AC motor dead electricity, lever arm stays open state, the electric energy preventing isolating switch QS from closing in rear electrical network flows into the earth by grounding assembly, causes power failure; 2nd, normal battle closes, and the closing coil of isolating switch QS obtains electric, and isolating switch QS is closed a floodgate;
E () is to isolating switch QS separating brake, the handle of change over switch SA1 is then needed to turn to " separating brake " position, now change over switch SA1 1., 2. closed between end, 3., 4. end is separated, the coil losing electricity of isolating switch QS, make isolating switch separating brake, the electric current that single phase poaer supply exports is by the 2. end of change over switch SA1, position switch SB1, 2 ends of single-phase AC motor, 1 end forms loop to the N end of three-phase transformer T, at this moment single-phase AC motor rotates, lever arm pinion rotation is made by gears meshing, tumbler connecting rod drives lever arm to rotate, lever arm closes,
In the process, position switch SB1 is in closure state, when lever arm rotation 90 degree puts in place, fixed contact on moving contact and insulator foot is connected, the left wall of lever arm touches the contact of position switch SB1 simultaneously, makes the normally-closed contact of position switch SB1 be in off-state, single-phase AC motor dead electricity, lever arm is kept closed, and the dump energy of isolating switch QS load side flows into the earth by grounding assembly; When single-phase AC motor breaks down, manually closed a floodgate by the insulated handle on lever arm.Position switch SB1, position switch SB2 are inlaid in insulator foot respectively.
The invention has the beneficial effects as follows: realize vulnerabilities scan forceful electric power by electric control gear, make grounding assembly away from front door, decrease probability charged in change over switch metal handle.And shorten the length of major loop to grounding assembly wire, reduce the possibility of the accidents such as circuit for generating short circuit.In the hope of improving the security performance of change over switch, simultaneously owing to not needing to be performed an action by the mechanical structure on handle, making the rotation of handle more flexible, increasing the flexibility of operation, reduce production cost, improve life of product.
Accompanying drawing explanation
Fig. 1, isolating switch grounding assembly stereogram;
Fig. 2, isolating switch grounding assembly front view;
Fig. 3, isolating switch grounding assembly end view;
Fig. 4, isolating switch grounding assembly vertical view;
The electrical connection diagram of Fig. 5, isolating switch grounding assembly.
In figure: 1. insulator foot, 2. support of motor, 3. single-phase AC motor, 4. lever arm gear, 5. tumbler connecting rod, 6. lever arm, 7. moving contact, 8. insulated handle, 9. axle bed, 10. connecting axle, 11. fixed contacts; 31. driving wheels, 61. left walls, 62. intermediate arms, 63. right walls.64. support arms, 65. outlet connecting bolts, 71. inlet wire connecting bolts.
Embodiment
For a more clear understanding of the present invention, the present invention is described in detail in conjunction with the accompanying drawings and embodiments:
As shown in Figures 1 to 4, New Type Isolating Switch grounding assembly, comprises insulator foot 1, support of motor 2, single-phase AC motor 3, lever arm gear 4, tumbler connecting rod 5, lever arm 6, moving contact 7, insulated handle 8, axle bed 9, connecting axle 10 and fixed contact 11; Described insulator foot 1 is rectangle, insulator foot 1 is fixed with support of motor 2, position switch SB1, position switch SB2, three groups of axle beds 8 and three fixed contacts 11, support of motor 2 is fixed single-phase AC motor 3; The motor shaft of single-phase AC motor 3 is fixed driving wheel 31, driving wheel 31 engages with lever arm gear 4, lever arm gear 4 is 1/4th of circular internal gear, lever arm gear 4 is fixed tumbler connecting rod 5, tumbler connecting rod 5 is L shape, the galianconism end of tumbler connecting rod 5 is fixed on lever arm gear 4, and long arm end is fixed on lever arm 6;
Described lever arm 6 is made up of left wall 61, intermediate arm 62, right wall 63 and support arm 64, left wall 61, intermediate arm 62 and right wall 63 are fixed respectively a moving contact 7, lever arm 6 upper end connects insulated handle 8, there is outlet connecting bolt 65 intermediate arm 62 lower end, support arm 6 is supported between left wall 61, intermediate arm 62, right wall 63, make left wall 61, in parallel between intermediate arm 62 and right wall 63, the bottom of left wall 61, intermediate arm 62 and right wall 63 is flexibly connected with corresponding axle bed 8 respectively by connecting axle 9.
Described isolating switch grounding assembly, at electric wiring application process, comprises following process:
A () described intermediate arm 62 connects ground wire N by the outlet connecting bolt of its lower end, three fixed contacts 11 on insulator foot 1 are connected respectively to the three-phase leading-out terminal of isolating switch QS;
B () isolating switch QS is Electromagnetic Drive, its three-phase end of incoming cables is connected to the input of three-phase transformer T, draws single phase poaer supply from the output of three-phase voltage stabilizer; The N of three-phase transformer T is connected with 1 end of single-phase AC motor 3,3 ends;
The phase line of (c) single phase poaer supply, connect 1., 3. holding of change over switch SA1,2. end link position switch S B1 one end of change over switch SA1, the other end of position switch SB1 is connected with 2 ends of single-phase AC motor 3,4. the common port holding link position switch S B2 of change over switch SA1, the normally-closed contact of position switch SB2 is connected with 4 ends of single-phase AC motor 3, the normally opened contact of position switch SB2 is connected with the live wire of isolating switch QS closing coil, and the zero line of isolating switch closing coil is connected with the zero line of three-phase transformer T;
D () is closed a floodgate to isolating switch QS, the handle of change over switch SA1 need be turned to " combined floodgate " position, now change over switch SA1 3., 4. closed between end, that 1., 2. holds is separated, the electric current that single phase poaer supply exports holds formation loop by 4 ends of 4. end, position switch SB2, the single-phase AC motor 3 of change over switch SA1,1 end to the N of three-phase transformer T, at this moment single-phase AC motor 3 rotates, by gears meshing, lever arm gear 4 is rotated, tumbler connecting rod 5 drives lever arm 6 upwards to rotate, and lever arm 6 is opened;
Before action, the normally closed point of position switch SB2 closes, normal battle disconnects, and when lever arm 6 rotate in place, the end face of lever arm gear 4 touches the contact of position switch SB2, now, the state of position switch SB2 is: 1st, normally-closed contact disconnects, and make single-phase AC motor 3 dead electricity, lever arm 6 stays open state, the electric energy preventing isolating switch QS from closing in rear electrical network flows into the earth by grounding assembly, causes power failure; 2nd, normal battle closes, and the closing coil of isolating switch QS obtains electric, and isolating switch QS is closed a floodgate;
E () is to isolating switch QS separating brake, the handle of change over switch SA1 is then needed to turn to " separating brake " position, now change over switch SA1 1., 2. closed between end, 3., 4. end is separated, the coil losing electricity of isolating switch QS, make isolating switch separating brake, the electric current that single phase poaer supply exports is by the 2. end of change over switch SA1, position switch SB1, 2 ends of single-phase AC motor 3, 1 end forms loop to the N end of three-phase transformer T, at this moment single-phase AC motor 3 rotates, by gears meshing, lever arm gear 4 is rotated, tumbler connecting rod 5 drives lever arm 6 to rotate, lever arm 6 closes,
In the process, position switch SB1 is in closure state, when lever arm 6 rotate 90 degree put in place time, moving contact 7 is connected with the fixed contact 11 on insulator foot 1, the left wall 61 of lever arm 6 touches the contact of position switch SB1 simultaneously, makes the normally-closed contact of position switch SB1 be in off-state, single-phase AC motor 3 dead electricity, lever arm 6 is kept closed, and the dump energy of isolating switch QS load side flows into the earth by grounding assembly; When single-phase AC motor 3 breaks down, manually closed a floodgate by the insulated handle 8 on lever arm 6.
According to the above description, the solution of the present invention can be realized in conjunction with art technology.
Claims (2)
1. isolating switch grounding assembly, is characterized in that, comprises insulator foot, support of motor, single-phase AC motor, lever arm gear, tumbler connecting rod, lever arm, moving contact, insulated handle, axle bed, connecting axle and fixed contact;
Described insulator foot is rectangle, insulator foot is fixed with support of motor, position switch SB1, position switch SB2, three axle beds and three inlet wire connecting bolt terminals, support of motor fixes single-phase AC motor; The electrode axis of single-phase AC motor fixes driving wheel, driving wheel and lever arm gears meshing, lever arm gear is 1/4th of circular internal gear, tumbler connecting rod fixed by lever arm gear, tumbler connecting rod is L shape, the galianconism end of tumbler connecting rod is fixed on lever arm gear, and long arm end is fixed on lever arm;
Described lever arm is made up of left wall, intermediate arm, right wall and support arm, Zuo Bi, intermediate arm, right wall are fixed respectively a moving contact, lever arm upper end connects insulated handle, there is outlet connecting bolt intermediate arm lower end, support arm is supported between left wall, intermediate arm, right wall, make left wall, in parallel between intermediate arm and right wall, the bottom of Zuo Bi, intermediate arm and right wall is flexibly connected with corresponding axle bed respectively by connecting axle;
Described isolating switch grounding assembly, at electric wiring application process, comprises following process:
A () described intermediate arm connects ground wire N by the outlet connecting bolt of its lower end, three fixed contacts on insulator foot are connected respectively to the three-phase leading-out terminal of isolating switch QS;
B () isolating switch QS is Electromagnetic Drive, its three-phase end of incoming cables is connected to the input of three-phase transformer T, draws single phase poaer supply from the output of three-phase voltage stabilizer; The N of three-phase transformer T is connected with 1 end of single-phase AC motor, 3 ends;
The phase line of (c) single phase poaer supply, connect 1., 3. holding of change over switch SA1,2. end link position switch S B1 one end of change over switch SA1, the other end of position switch SB1 is connected with 2 ends of single-phase AC motor, 4. the common port holding link position switch S B2 of change over switch SA1, the normally-closed contact of position switch SB2 is connected with 4 ends of single-phase AC motor, the normally opened contact of position switch SB2 is connected with the live wire of isolating switch QS closing coil, and the zero line of isolating switch closing coil is connected with the zero line of three-phase transformer T;
D () is closed a floodgate to isolating switch QS, the handle of change over switch SA1 need be turned to " combined floodgate " position, now change over switch SA1 3., 4. closed between end, that 1., 2. holds is separated, the electric current that single phase poaer supply exports holds formation loop by 4 ends of 4. end, position switch SB2, the single-phase AC motor of change over switch SA1,1 end to the N of three-phase transformer T, at this moment single-phase AC motor rotates, lever arm pinion rotation is made by gears meshing, tumbler connecting rod drives lever arm upwards to rotate, and lever arm is opened;
Before action, the normally closed point of position switch SB2 closes, normal battle disconnects, and when lever arm rotate in place, the end face of lever arm gear touches the contact of position switch SB2, now, the state of position switch SB2 is: 1st, normally-closed contact disconnects, and make single-phase AC motor dead electricity, lever arm stays open state, the electric energy preventing isolating switch QS from closing in rear electrical network flows into the earth by grounding assembly, causes power failure; 2nd, normal battle closes, and the closing coil of isolating switch QS obtains electric, and isolating switch QS is closed a floodgate;
E () is to isolating switch QS separating brake, the handle of change over switch SA1 is then needed to turn to " separating brake " position, now change over switch SA1 1., 2. closed between end, 3., 4. end is separated, the coil losing electricity of isolating switch QS, make isolating switch separating brake, the electric current that single phase poaer supply exports is by the 2. end of change over switch SA1, position switch SB1, 2 ends of single-phase AC motor, 1 end forms loop to the N end of three-phase transformer T, at this moment single-phase AC motor rotates, lever arm pinion rotation is made by gears meshing, tumbler connecting rod drives lever arm to rotate, lever arm closes,
In the process, position switch SB1 is in closure state, when lever arm rotation 90 degree puts in place, fixed contact on moving contact and insulator foot is connected, the left wall of lever arm touches the contact of position switch SB1 simultaneously, makes the normally-closed contact of position switch SB1 be in off-state, single-phase AC motor dead electricity, lever arm is kept closed, and the dump energy of isolating switch QS load side flows into the earth by grounding assembly;
When single-phase AC motor breaks down, manually closed a floodgate by the insulated handle on lever arm.
2. isolating switch grounding assembly as claimed in claim 1, it is characterized in that, position switch SB1, position switch SB2 are inlaid in insulator foot respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310249128.7A CN103280366B (en) | 2013-06-21 | 2013-06-21 | Disconnecting switch grounding component |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310249128.7A CN103280366B (en) | 2013-06-21 | 2013-06-21 | Disconnecting switch grounding component |
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| CN103280366A CN103280366A (en) | 2013-09-04 |
| CN103280366B true CN103280366B (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310249128.7A Active CN103280366B (en) | 2013-06-21 | 2013-06-21 | Disconnecting switch grounding component |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114188829B (en) * | 2022-02-17 | 2022-04-26 | 晟望电气有限公司 | Combined medium voltage distribution system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2640016Y (en) * | 2003-09-16 | 2004-09-08 | 西安高压开关厂电器产品研制厂 | Electric operation mechanism of high-tension isolating switch, earthed switch |
| CN200953288Y (en) * | 2006-04-07 | 2007-09-26 | 西安西开高压电气股份有限公司 | Electric operating mechanism for switch equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10174216A (en) * | 1996-12-05 | 1998-06-26 | Hitachi Electric Syst:Kk | Grounding switchgear |
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- 2013-06-21 CN CN201310249128.7A patent/CN103280366B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2640016Y (en) * | 2003-09-16 | 2004-09-08 | 西安高压开关厂电器产品研制厂 | Electric operation mechanism of high-tension isolating switch, earthed switch |
| CN200953288Y (en) * | 2006-04-07 | 2007-09-26 | 西安西开高压电气股份有限公司 | Electric operating mechanism for switch equipment |
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| CN103280366A (en) | 2013-09-04 |
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