CN205751986U - A kind of safe and reliable, non-maintaining indoor direct-current isolating switch - Google Patents
A kind of safe and reliable, non-maintaining indoor direct-current isolating switch Download PDFInfo
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- CN205751986U CN205751986U CN201620414664.7U CN201620414664U CN205751986U CN 205751986 U CN205751986 U CN 205751986U CN 201620414664 U CN201620414664 U CN 201620414664U CN 205751986 U CN205751986 U CN 205751986U
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- rotating shaft
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- underframe
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Abstract
This utility model relates to a kind of safe and reliable, non-maintaining indoor direct-current isolating switch, including underframe, it is respectively provided with an insulator in both sides, described underframe upper end, an insulator upper end, moving contact is set, another insulator upper end arranges static contact, near one end of static contact, the first rotating shaft is provided with isolation knife at described moving contact；Wearing the second rotating shaft in the middle part of described isolation knife, the second rotating shaft connects insulated tension pole, and the lower end of described insulated tension pole wears the 3rd rotating shaft, and the 3rd rotating shaft connects drive assembly；Described drive assembly is arranged on underframe, and drive assembly connects electric driving mechanism and Manual drive mechanism；This utility model good stability, practical, safety good, solves that the reliability that in urban track traffic power supply system of electric traction, existing disconnecting switch exists is the highest, overhaul and safeguard the technical problem that complexity, safety are the highest.
Description
Technical field
This utility model relates to urban track traffic tractive power supply system technical field, is specifically related to a kind of safe and reliable, non-maintaining indoor direct-current isolating switch.
Background technology
In recent years, along with the development of urban rail transit in China cause, the city such as domestic a lot of lines, two wires, all the emphasis built based on urban track traffic, following 10 years also will be the period of urban rail transit in China great development.City rail will be built up during 12 put into operation 2500 km, average annual 500 km, expect the year two thousand twenty, domestic will have about 40 urban development track traffics, total kilometrage is built up in the whole nation will reach 6000 km, that is in " 13 " period, to complete about 500 kilometers every year and cover main big and medium-sized cities, the whole nation.
Along with urban track traffic is in the large-area construction of China, putting into operation of high-power electric locomotive, under the situation that electric propulsion increases increasingly, disconnecting switch in power supply system becomes for the important component part in electric power system, therefore the requirement to equipment and personal safety is more and more higher, maintenance repair to operation user simultaneously, maintenance work amount it is also proposed requirement, local manual operation is needed when common equipment overhauls at the scene, during manual operation, if a distant place has carried out maloperation (electric operating), the rocking handle of at this moment manual operation will follow motor to carry out high speed rotating easily can bring potential safety hazard to on-the-spot upkeep operation；In use there is easily occurring " stall " of motor because of overload or catching phenomenon in motor, electric current (title locked rotor current) during stall is up to 7 times of rated current, time slightly length will burn out motor, not only affects the normal usage energy of product and can increase the work frequency of repair and maintenance.
Summary of the invention
The purpose of this utility model is to provide a kind of safe and reliable, non-maintaining indoor direct-current isolating switch, and the reliability that in solution urban track traffic power supply system of electric traction, existing disconnecting switch exists is the highest, overhaul and safeguard the technical problem that complexity, safety are the highest.
For reaching above-mentioned purpose, the technical solution of the utility model is:
The technical scheme is that
A kind of safe and reliable, non-maintaining indoor direct-current isolating switch, including underframe, it is respectively provided with an insulator in both sides, described underframe upper end, an insulator upper end, moving contact is set, another insulator upper end arranges static contact, near one end of static contact, the first rotating shaft is provided with isolation knife at described moving contact；Wearing the second rotating shaft in the middle part of described isolation knife, the second rotating shaft connects insulated tension pole, and the lower end of described insulated tension pole wears the 3rd rotating shaft, and the 3rd rotating shaft connects drive assembly；
Described drive assembly is arranged on underframe, and drive assembly connects electric driving mechanism and Manual drive mechanism；Described electric driving mechanism includes switching motor, arranges torque force limiting device in switching motor, switching motor can by torque force limiting device drive described in drive assembly so that drive the 3rd axis of rotation；Described man-operated mechanism includes that manual gear axle, manual gear axle can drive described drive assembly and then drive the 3rd axis of rotation；Manual gear axle is provided with hand crank；
Being additionally provided with auxiliary switch, travel switch and safety switch on described underframe, auxiliary switch is connected with drive assembly, and auxiliary switch is in order to the collection of the locking and position signalling that realize isolation knife and uploads.
Described torque force limiting device is arranged in switching motor, including driving flange, rotary shaft, torsion ring flange, banking stop, plane stage clip, catch and jump ring；One end of described rotary shaft connects drive assembly by flat key, the other end of rotary shaft arranges torsion ring flange, described torsion ring flange upper surface is provided with skewed slot, in the notch of skewed slot, banking stop is set, described plane stage clip is arranged at banking stop upper end, and described catch is arranged at above banking stop and is fixed with rotary shaft by jump ring；
Described driving flange is arranged at outside torsion ring flange, drives flange to be connected with motor output shaft.
Described isolation knife includes that 4 isolation blades be arrangeding in parallel, 4 isolation blades crimp into an entirety by latch plate.
Described static contact arranges on the sidewall of moving contact and coordinates the switch contact rod contacted with isolation knife, and described switch contact rod two sides is provided with groove.
The described drive assembly described in the 3rd rotating shaft one end connection, the other end is arranged on underframe by oil-free self lubrication sliding bearing.
Beneficial effects of the present invention:
1. good stability: this utility model moves insulator and quiet insulator is fixedly installed on underframe, makes isolation knife vertically open by insulated tension pole, and dynamic stability is good, closes a floodgate reliable, improves the stability of product；
The most practical: disconnecting switch of the present utility model have lightweight, volume is little, the advantage such as safe and reliable, non-maintaining, not only can carry out using in the place of the narrow space such as traction substation or switch cubicle and more can effectively reduce maintenance and maintenance frequency, greatly reduce the working strength of user of service；
3. safety is good: disconnecting switch of the present utility model have employed manual operation safety switch, and the fault rate artificial maloperation occurred eliminates, and improves the degree of protection of personal safety；" stall " phenomenon that when motor torque force limiting device can effectively prevent abnormal conditions, motor produces, the collateral damage being not only able to prevent motor burning also to be able to prevent producing other mechanical part extends the service life of product.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model；
Fig. 2 is the side view of Fig. 1；
Fig. 3 is motor torque force limiting device structural representation of the present utility model.
In figure, 1-underframe, 2-insulator, 3-moving contact, 4-static contact, 5-isolation knife, 6-insulated tension pole, 7-the 3rd rotating shaft, 8-drive assembly, 9-switching motor, 10-manual gear axle, 11-auxiliary switch, 12-drives flange, 13-rotary shaft, 14-torsion ring flange, 15-banking stop, 16-plane stage clip, 17-catch, 18-jump ring, 19-switch contact rod, 20-safety switch.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is further detailed, a kind of safe and reliable, non-maintaining indoor direct-current isolating switch as shown in Figure 1, including underframe 1, it is respectively provided with an insulator 2 in both sides, described underframe 1 upper end, one of which insulator 2 upper end arranges moving contact 3, another insulator 2 upper end arranges static contact 4, near one end of static contact 4, the first rotating shaft is provided with isolation knife 5 at described moving contact 3；Described static contact 4 arranges on the sidewall of moving contact 3 and coordinates, with isolation knife 5, the switch contact rod 19 contacted, described switch contact rod 19 two sides are provided with groove, can alleviate the frictional dissipation that switch produces in operation, trench design can effectively retain conductive grease and extend service life and the excellent conductive performance of switch contact part；Isolation knife 5 includes that 4 isolation blades be arrangeding in parallel, isolation blade all use T2 conductive copper, and surface carries out silver-plated process, it is possible to efficiently by electric current, improves the monolithic conductive performance of product；4 isolation blades crimp into an entirety by latch plate, and isolation knife is averagely pressed by latch plate, thus ensures that switch contact part is reliable.The second rotating shaft is worn in the middle part of described isolation knife, second rotating shaft connects insulated tension pole 6, the lower end of described insulated tension pole 6 wears the 3rd rotating shaft 7, and the described drive assembly 8 described in the 3rd rotating shaft 7 one end connection, the other end is arranged on underframe 1 by oil-free self lubrication sliding bearing.
Described drive assembly 8 is arranged on underframe 1, and drive assembly 8 connects electric driving mechanism and Manual drive mechanism；Described electric driving mechanism includes switching motor 9, arranges torque force limiting device in switching motor 9, switching motor 9 can by torque force limiting device drive described in drive assembly 8 so that drive the 3rd rotating shaft 7 rotate；Described man-operated mechanism includes that manual gear axle 10, manual gear axle 10 can drive described drive assembly 8 and then drive the 3rd rotating shaft to turn 7 and move；Manual gear axle 10 is provided with hand crank；Described torque force limiting device is arranged in switching motor 9, including driving flange 12, rotary shaft 13, torsion ring flange 14, banking stop 15, plane stage clip 16, catch 17 and jump ring 18；One end of described rotary shaft 13 connects drive assembly 8 by flat key, the other end of rotary shaft 13 arranges torsion ring flange 14, described torsion ring flange 14 upper surface is provided with skewed slot, described banking stop 15 is set in the notch of skewed slot, described plane stage clip 16 is arranged at banking stop 15 upper end, and described catch 17 is arranged at above banking stop 15 and is fixed with rotary shaft 13 by jump ring 18；Described driving flange 12 is arranged at outside torsion ring flange 14, drives flange 12 to be connected with the output shaft of motor.When there is clamping stagnation or abnormal conditions in switching motor 9, torque force limiting device within switching motor 9 can produce exertin and skid, i.e., when switching motor 9 limited torque, banking stop 15 can eject along the skewed slot of torsion ring flange 14, now rotary shaft 13 will be stopped the rotation, and drive flange 12, torsion ring flange 14, banking stop 15 skidding occur, thus ensure switch machine part service life.
Being additionally provided with auxiliary switch 11, travel switch and safety switch 20 on described underframe 1, auxiliary switch 11 is connected with drive assembly 8, and auxiliary switch 11 is in order to the collection of the locking and position signalling that realize isolation knife 5 and uploads.Auxiliary switch 11 can have 4 groups, 8 groups, 12 groups of 3 kinds of forms, the opening and closing state of Real-time Feedback disconnecting switch with the output signal provided；Travel switch can provide 2 components, combined floodgate power-off signal, the operating state of Real-time Feedback motor；Safety switch can be with signal during 1 group of offer manual operation, Real-time Feedback execute-in-place pattern, and all signals can be with the duty of real-time embodying disconnecting switch, it is ensured that on-the-spot operation safety and system are normal.
This utility model can arrange manual priority operator scheme; even if electric operating loop occurs that exception or secondary power supply have a power failure; manual operation can also realize disconnecting switch cut-out in high-tension line or Guan Bi; and safety switch can operate power supply with instantaneous trip electric motor loop during manual operation, it is ensured that personal safety；Motor internal is mounted with torque force limiting device, and when there are machinery clamping stagnation or abnormal conditions, torque force limiting device there will be skidding, such that it is able to prevent the collateral damage producing other mechanical part, and motor can be protected because of phenomenons such as the scaling loss of overload appearance；
Present disclosure is not limited to cited by embodiment, and the conversion of any equivalence that technical solution of the present invention is taked by those of ordinary skill in the art by reading description of the invention, the claim being the present invention is contained.
Claims (5)
1. safe and reliable, a non-maintaining indoor direct-current isolating switch, including underframe (1), an insulator (2) it is respectively provided with in described underframe (1) both sides, upper end, one of which insulator (2) upper end arranges moving contact (3), another insulator (2) upper end arranges static contact (4), it is characterised in that:
Near one end of static contact (4), the first rotating shaft is provided with isolation knife (5) at described moving contact (3)；Described isolation knife (5) middle part wears the second rotating shaft, and the second rotating shaft connects insulated tension pole (6), and the lower end of described insulated tension pole (6) wears the 3rd rotating shaft (7), and the 3rd rotating shaft (7) connects drive assembly (8)；
Described drive assembly (8) is arranged on underframe (1), and drive assembly (8) connects electric driving mechanism and Manual drive mechanism；Described electric driving mechanism includes switching motor (9), arranges torque force limiting device in switching motor (9), switching motor (9) can by torque force limiting device drive described in drive assembly (8) so that drive the 3rd rotating shaft (7) rotate；Described man-operated mechanism includes that manual gear axle (10), manual gear axle (10) can drive described drive assembly (8) and then drive the 3rd rotating shaft (7) to rotate；Manual gear axle (10) is provided with hand crank；
Auxiliary switch (11), travel switch and safety switch (20) it is additionally provided with on described underframe (1), auxiliary switch (11) is connected with drive assembly (8), and auxiliary switch (11) is in order to realize locking and the collection of position signalling of isolation knife (5) and to upload.
Safe and reliable, non-maintaining indoor direct-current isolating switch the most according to claim 1, it is characterised in that:
Described torque force limiting device is arranged in switching motor (9), including driving flange (12), rotary shaft (13), torsion ring flange (14), banking stop (15), plane stage clip (16), catch (17) and jump ring (18)；One end of described rotary shaft (13) connects drive assembly (8) by flat key, the other end of rotary shaft (13) arranges torsion ring flange (14), described torsion ring flange (14) upper surface is provided with skewed slot, described banking stop (15) is set in the notch of skewed slot, described plane stage clip (16) is arranged at banking stop (15) upper end, and described catch (17) is arranged at banking stop (15) top and is fixed with rotary shaft (13) by jump ring (18)；
Described driving flange (12) is arranged at torsion ring flange (14) outward, drives flange (12) to be connected with the output shaft of motor.
Safe and reliable, non-maintaining indoor direct-current isolating switch the most according to claim 1 and 2, it is characterised in that:
Described isolation knife (5) includes that 4 isolation blades be arrangeding in parallel, 4 isolation blades crimp into an entirety by latch plate.
Safe and reliable, non-maintaining indoor direct-current isolating switch the most according to claim 3, it is characterised in that:
Described static contact (4) arranges on the sidewall of moving contact (3) and coordinates switch contact rod (19) contacted with isolation knife (5), and described switch contact rod (19) two sides is provided with groove.
Safe and reliable, non-maintaining indoor direct-current isolating switch the most according to claim 4, it is characterised in that:
The described drive assembly (8) described in the 3rd rotating shaft (7) one end connection, the other end is arranged on underframe (1) by oil-free self lubrication sliding bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620414664.7U CN205751986U (en) | 2016-05-10 | 2016-05-10 | A kind of safe and reliable, non-maintaining indoor direct-current isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620414664.7U CN205751986U (en) | 2016-05-10 | 2016-05-10 | A kind of safe and reliable, non-maintaining indoor direct-current isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205751986U true CN205751986U (en) | 2016-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620414664.7U Active CN205751986U (en) | 2016-05-10 | 2016-05-10 | A kind of safe and reliable, non-maintaining indoor direct-current isolating switch |
Country Status (1)
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| CN (1) | CN205751986U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114242470A (en) * | 2021-12-15 | 2022-03-25 | 江苏省如高高压电器有限公司 | Automatic oil injection type wear-resistant contact for isolating switch |
-
2016
- 2016-05-10 CN CN201620414664.7U patent/CN205751986U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114242470A (en) * | 2021-12-15 | 2022-03-25 | 江苏省如高高压电器有限公司 | Automatic oil injection type wear-resistant contact for isolating switch |
| CN114242470B (en) * | 2021-12-15 | 2023-12-01 | 江苏省如高高压电器有限公司 | Automatic oiling type wear-resistant contact for isolating switch |
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