CN102983035B - Three phase earthing switch structure driven by duplex pull rods and distributed in I shape - Google Patents
Three phase earthing switch structure driven by duplex pull rods and distributed in I shape Download PDFInfo
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- CN102983035B CN102983035B CN201210477300.XA CN201210477300A CN102983035B CN 102983035 B CN102983035 B CN 102983035B CN 201210477300 A CN201210477300 A CN 201210477300A CN 102983035 B CN102983035 B CN 102983035B
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Abstract
The invention relates to a three phase earthing switch structure driven by duplex pull rods and distributed in an I shape. The structure is characterized in that the structure comprises an A phase moving contact component, a B phase moving contact component and a C phase moving contact component which are distributed in the I shape, one ends of the A phase moving contact component, the B phase moving contact component and the C phase moving contact component are connected with an A phase static contact component, a B phase static contact component and a C phase static contact component respectively, and the other ends of the A phase moving contact component, the B phase moving contact component and the C phase moving contact component are tightly embraced with an A phase rotating shaft, a B phase rotating shaft and a C phase rotating shaft respectively. The three phase earthing switch structure driven by the duplex pull rods and distributed in the I shape has the advantages that a main conducting element has self-compression capability, the structure is simple, the performances are reliable, the entire earthing switch is in a detachable structure, convenient to install, flexible and wide in application, the adjustment is facilitated, and the through-current capability of the switch can be adjusted by increasing or reducing the number of contact fingers of the moving contacts.
Description
Technical field
The present invention relates to a kind of novel three-phase ground cutter as outdoor AC high-voltage isolating switch attaching divide, when closing a floodgate in same plane inter-sync action, arrange in rods arranged in horizontal line, earthing duplex pull rod drives, the adjustable self-compression type earthed switch structure in installation site, be the key structure of outdoor high-voltage alternating current isolating switch in high voltage power transmission and transforming system, belong to high-voltage switch gear technical field.
Background technology
The three-phase ground switch layout arranged in parallel of usual outdoor high-voltage alternating current isolating switch attaching, point, during combined floodgate, three-phase ground cutter carries out in three planes be parallel to each other, every phase earthed switch is made up of a fixed contact and a moving contact, two contacts are when the two rows parallel fingertip clamping fixed contact generation conductive contact of closing position moving contact, moving contact fingertip is that outer pressing spring is to keep its lasting clamping force, spring all can be caused to cross thermal annealing permanent deformation when contact electrical contact place heating or the unfavorable shunting of spring insulation, lose spring function, and then initiation fingertip clamping force die-offs, contact resistance increases suddenly, make that loop is overheated burns earthed switch.And usually contact installation site is fixed, and can not adjust, on-the-spot run in contact there is small distortion by external force and just open method and use.
Summary of the invention
The object of this invention is to provide a kind of three-phase ground switch divide, when closing a floodgate in same plane inter-sync action, arrange in rods arranged in horizontal line, earthing duplex pull rod drives, in same plane inter-sync action when earthed switch closes a floodgate; Only rely on the elasticity of moving contact fingertip electric conducting material itself to keep its clamping force continued to moving contact during combined floodgate, and dynamic and static contact installation site is adjustable 123 ~ 145kV high voltage isolator earthed switch conductive structure.
In order to achieve the above object, technical scheme of the present invention there is provided the three-phase rods arranged in horizontal line layout earthed switch structure that a kind of duplex pull rod drives, it is characterized in that: comprise the A phase moving contact component in rods arranged in horizontal line, B phase moving contact component and C phase moving contact component, A phase moving contact component, one end of B phase moving contact component and C phase moving contact component connects A phase static contact component respectively, B phase static contact component and C phase static contact component, its other end respectively with the rotating shaft of A phase, the rotating shaft of B phase and the rotating shaft of C phase are held tightly, the rotating shaft of A phase, the rotating shaft of B phase and the rotating shaft of C phase are respectively by A phase bent plate bearing, B phase bent plate bearing and C phase bent plate seat supports form revolute pair, between A phase bent plate bearing and C phase bent plate bearing, torsion spring is housed, between B phase bent plate bearing, fan-shaped interlock plate is housed, an alternate pull bar is connected between A phase rotating shaft two ends with B phase rotating shaft two ends and between B phase rotating shaft two ends and C phase rotating shaft two ends, the rotating shaft of A phase, the rotating shaft of B phase or C phase rotating shaft connection for transmission device, transmission device and operating mechanism are linked, wherein:
Transmission device comprises output connecting rod, the one end and the operating mechanism that export connecting rod are linked, the axle of the other end and output toggle arm is held tightly by anchor ear device and is connected, middle adjustable connecting-rod respectively and between the connecting lever plate of output toggle arm and and input connecting lever between is formed and is rotatably connected, input connecting lever and be connected and fixed with the rotating shaft of A phase, the rotating shaft of B phase or the rotating shaft of C phase and alternate pull bar respectively by pin.
Preferably, the structure of described A phase moving contact component, B phase moving contact component and C phase moving contact component is identical, comprise supporting bracket, aluminium conduction briquetting, anchor ear, Al pipe butt welding fingertip bearing and copper material fingertip, supporting bracket and aluminium conduct electricity briquetting and clamp Al pipe butt welding fingertip bearing, copper material fingertip is that two rows are pressed in the elongated hole of Al pipe butt welding fingertip bearing front end, and the anchor ear fixing with supporting bracket holds the rotating shaft of A phase, the rotating shaft of B phase or the rotating shaft of C phase tightly.
Preferably, the structure of described A phase static contact component, B phase static contact component and C phase static contact component is identical, comprise pressing plate, screw rod, I-shaped bearing, copper coin formula fixed contact and guide vane end stop, guide vane end stop is located on copper coin formula fixed contact, copper coin formula fixed contact and I-shaped bearing are connected and fixed, and I-shaped bearing is clamped on described copper material fingertip by pressing plate and screw rod.
Preferably, described in every root, copper material fingertip front end is finger type and is bent outwardly, and the described copper material fingertip of two rows is symmetrically arranged, and forms horn mouth shape.
During combined floodgate, export 90 ° of corners by operating mechanism, by middle four-bar linkage structure transmission device, pull contact in vertical plane, turn clockwise 85 °, make moving contact be pressed into fixed contact and complete combined floodgate.Otherwise complete separating brake.At open position, earthed switch forms the fracture that significantly has reliable insulation.
In the present invention, moving contact fingertip is that front end is finger type and bandy round copper rod structure, and during installation, two rows are symmetrically arranged, and form horn mouth shape, have good guide effect.Circle copper rod material, can continue to keep moving contact to the pressure of fixed contact, ensure that through-flow effect.Contact and fingertip have good automatically cleaning, self-adjusting function.
Design feature of the present invention is: 1, three-phase ground cutter divide, when closing a floodgate in same plane inter-sync action, arrange in rods arranged in horizontal line; 2, moving contact fingertip special material institute oneself compresses sexual function, and do not need external spring, structure simple operation is reliable; 3, moving contact two is arranged fingertip and can be selected fingertip quantity according to size of current, increases versatility and flexibility; 4, movable contact conducting bar adopts aluminium-alloy pipe welding, and it is lightweight, low cost of manufacture, is easy to produce; 5, moving contact two arranges fingertip horn mouth shape and fixed contact board-like copper contact front end wedge structure, can reduce combined floodgate resistance; 6, moving contact and fixed contact position can appropriately adjust when mounted, and convenient installation, is conducive to adjustment; 7, form the fracture significantly with reliable insulation when open position, coefficient of safety is high; 8, three-phase ground cutter duplex pull rod drives, and the overall torsional deflection of earthed switch weakens, and increases accuracy of action.
Advantage of the present invention is: main conductive element has self-compression ability, and structure is simple, dependable performance, whole earthed switch are dismountable structure, and convenient installation, is conducive to adjustment.Current capability of the switcher size adjusts by increasing or reduce moving contact fingertip quantity, convenient, flexible, of many uses.
Accompanying drawing explanation
Fig. 1 is the front view of the three-phase rods arranged in horizontal line layout earthed switch structure that a kind of duplex pull rod provided by the invention drives;
Fig. 2 is the vertical view of the three-phase rods arranged in horizontal line layout earthed switch structure that a kind of duplex pull rod provided by the invention drives;
Fig. 3 is the vertical view of the another kind of annexation of the three-phase rods arranged in horizontal line layout earthed switch structure that a kind of duplex pull rod provided by the invention drives;
Fig. 4 is moving contact component schematic diagram;
Fig. 5 is static contact component schematic diagram.
Embodiment
For making the present invention become apparent, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
As shown in Figures 1 and 2, the three-phase rods arranged in horizontal line that a kind of duplex pull rod provided by the invention drives arranges earthed switch structure, comprise the A phase moving contact component 2-1 in rods arranged in horizontal line, B phase moving contact component 2-2 and C phase moving contact component 2-3, A phase moving contact component 2-1, one end of B phase moving contact component 2-2 and C phase moving contact component 2-3 connects A phase static contact component 1-1 respectively, B phase static contact component 1-2 and C phase static contact component 1-3, its other end respectively with A phase rotating shaft 13-1, B phase rotating shaft 13-2 and C phase rotating shaft 13-3 holds tightly, A phase rotating shaft 13-1, B phase rotating shaft 13-2 and C phase rotating shaft 13-3 is respectively by A phase bent plate bearing 11-1, B phase bent plate bearing 11-2 and C phase bent plate bearing 11-3 supports and forms revolute pair, axially passing through retainer ring spacing.Between A phase rotating shaft 13-1 two ends with B phase rotating shaft 13-2 two ends and between B phase rotating shaft 13-2 two ends and C phase rotating shaft 13-3 two ends, be connected to alternate pull bar 4, a B phase rotating shaft 13-2 connection for transmission device, transmission device and operating mechanism 5 are linked.Its another kind of installation form as shown in Figure 3.
Operating mechanism 5 can be electronic or manual as driving link, exportable 90 ° or 180 ° of corners.
Transmission device comprises output connecting rod 6, and output connecting rod 6 one end and operating mechanism 5 are linked, and the axle of the other end and output toggle arm 9 that export connecting rod 6 is held tightly by anchor ear device 7 and is connected.The bearing of output toggle arm 9 is loaded on isolating switch base channel-section steel.The connecting lever plate of output toggle arm 9 is connected with middle adjustable connecting-rod 10 one end by ball pin, and formation is rotatably connected; The other end of middle adjustable connecting-rod 10 is connected also to be formed with input connecting lever 3 by pin and oscillating bearing and is rotatably connected.Input connecting lever 3 is fixed on B phase rotating shaft 13-2 by pin.Output toggle arm 9, middle adjustable connecting-rod 10, input connecting lever 3 form space four-links structure.Input connecting lever 3 is sold with alternate pull bar 4 and is connected, and forms 2 groups of parallel―ordinal shift structures.Bent plate bearing 11 is fixed on isolating switch base channel-section steel end by Bolt Connection.Be equipped with between A phase bent plate bearing 11-1 and C phase bent plate bearing 11-3 between torsion spring 14, B phase bent plate bearing 11-2 and fan-shaped interlock plate 12 is housed.
The Driving Torque of operating mechanism 5, through space four-links structure and two parallel―ordinal shift structure of transmission device, is converted into input torque by this Driving Torque, is supplied to moving contact, thus makes the moving contact 85 ° of angles that turn clockwise rotate press-in fixed contacts.And then complete combined floodgate.Earthed switch both sides discharge torsion for the torsion spring 14 of balanced dynamic contact and support component 2 gravity simultaneously, the fan-shaped interlock plate 12 of mesophase spherule also rotates 85 ° of angles along quiet hour hands and enters Interlock Status, now equipped with earthed switch isolating switch can not close a floodgate, and achieves accurate interlocking.The conductive arm of the isolating switch that fixed contact and earthed switch are equipped with is connected, and moving contact, through the effective grounding that is flexible coupling, just defines unobstructed grounded circuit after dynamic and static like this contact closing, achieves the using function of earthed switch.Otherwise during separating brake.
As shown in Figure 4, the structure of A phase moving contact component 2-1, B phase moving contact component 2-2 and C phase moving contact component 2-3 is identical, comprises supporting bracket 15, aluminium conduction briquetting 16, anchor ear 17, Al pipe butt welding fingertip bearing 18 and copper material fingertip 19.
Aluminium conduction briquetting 16 clamps Al pipe butt welding fingertip bearing 18 by bolt together with supporting bracket 15, and copper material fingertip 19 is that two rows are pressed in the elongated hole of Al pipe butt welding fingertip bearing 18 front end by screw-nut.Above as entirety, held tightly on the rotating shaft of A phase 13-1, B phase rotating shaft 13-2 and C phase rotating shaft 13-3 by anchor ear 17.
As shown in Figure 5, the structure of A phase static contact component 1-1, B phase static contact component 1-2 and C phase static contact component 1-3 is identical, comprises pressing plate 20, screw rod 21, I-shaped bearing 22, copper coin formula fixed contact 23, guide vane end stop 24 form.
Guide vane end stop 24 is contained in copper coin formula fixed contact 23 rear end, then is contained in I-shaped bearing 22 lower surface by bolt together with copper coin formula fixed contact 23, then is clamped in assembling above in isolating switch acting arm by screw rod 21 and pressing plate 20.I-shaped bearing 22 upper surface and isolating switch acting arm form conductive contact, lower surface and copper coin formula fixed contact 23 conductive contact.Fixed contact longitudinally can appropriately adjust at conductive arm.Guide vane end stop 24 plays position-limiting action when dynamic and static contact closes a floodgate, and departs from fixed contact when the moving contact anglec of rotation can be prevented excessive.
Claims (4)
1. the three-phase rods arranged in horizontal line of a duplex pull rod driving arranges earthed switch structure, it is characterized in that: comprise the A phase moving contact component (2-1) in rods arranged in horizontal line, B phase moving contact component (2-2) and C phase moving contact component (2-3), A phase moving contact component (2-1), one end of B phase moving contact component (2-2) and C phase moving contact component (2-3) connects A phase static contact component (1-1) respectively, B phase static contact component (1-2) and C phase static contact component (1-3), its other end respectively with A phase rotating shaft (13-1), B phase rotating shaft (13-2) and C phase rotating shaft (13-3) are held tightly, A phase rotating shaft (13-1), B phase rotating shaft (13-2) and C phase rotating shaft (13-3) are respectively by A phase bent plate bearing (11-1), B phase bent plate bearing (11-2) and C phase bent plate bearing (11-3) support and form revolute pair, between A phase bent plate bearing (11-1) and C phase bent plate bearing (11-3), torsion spring (14) is housed, fan-shaped interlock plate (12) is housed between B phase bent plate bearing (11-2), an alternate pull bar (4) is connected between A phase rotating shaft (13-1) two ends with B phase rotating shaft (13-2) two ends and between B phase rotating shaft (13-2) two ends and C phase rotating shaft (13-3) two ends, A phase rotating shaft (13-1), B phase rotating shaft (13-2) or C phase rotating shaft (13-3) connection for transmission device, transmission device and operating mechanism (5) are linked, wherein:
Transmission device comprises output connecting rod (6), the one end and the operating mechanism (5) that export connecting rod (6) are linked, the axle of the other end and output toggle arm (9) is held tightly by anchor ear device (7) and is connected, middle adjustable connecting-rod (10) respectively and between the connecting lever plate of output toggle arm (9) and and input connecting lever (3) between is formed and is rotatably connected, input connecting lever (3) and be connected and fixed with A phase rotating shaft (13-1), B phase rotating shaft (13-2) or C phase rotating shaft (13-3) and alternate pull bar (4) respectively by pin.
2. the three-phase rods arranged in horizontal line that a kind of duplex pull rod as claimed in claim 1 drives arranges earthed switch structure, it is characterized in that: described A phase moving contact component (2-1), the structure of B phase moving contact component (2-2) and C phase moving contact component (2-3) is identical, comprise supporting bracket (15), aluminium conduction briquetting (16), anchor ear (17), Al pipe butt welding fingertip bearing (18) and copper material fingertip (19), supporting bracket (15) and aluminium conduct electricity briquetting (16) and clamp Al pipe butt welding fingertip bearing (18), copper material fingertip (19) is pressed in the elongated hole of Al pipe butt welding fingertip bearing (18) front end in two rows, the anchor ear (17) fixing with supporting bracket (15) holds A phase rotating shaft (13-1) tightly, B phase rotating shaft (13-2) or C phase rotating shaft (13-3).
3. the three-phase rods arranged in horizontal line that a kind of duplex pull rod as claimed in claim 2 drives arranges earthed switch structure, it is characterized in that: described A phase static contact component (1-1), the structure of B phase static contact component (1-2) and C phase static contact component (1-3) is identical, comprise pressing plate (20), screw rod (21), I-shaped bearing (22), copper coin formula fixed contact (23) and guide vane end stop (24), guide vane end stop (24) is located on copper coin formula fixed contact (23), copper coin formula fixed contact (23) and I-shaped bearing (22) are connected and fixed, I-shaped bearing (22) is clamped on described copper material fingertip (19) by pressing plate (20) and screw rod (21).
4. the three-phase rods arranged in horizontal line that a kind of duplex pull rod as claimed in claim 2 drives arranges earthed switch structure, it is characterized in that: described in every root, copper material fingertip (19) front end is finger type and is bent outwardly, the described copper material fingertip (19) of two rows is symmetrically arranged, and forms horn mouth shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210477300.XA CN102983035B (en) | 2012-11-21 | 2012-11-21 | Three phase earthing switch structure driven by duplex pull rods and distributed in I shape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210477300.XA CN102983035B (en) | 2012-11-21 | 2012-11-21 | Three phase earthing switch structure driven by duplex pull rods and distributed in I shape |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102983035A CN102983035A (en) | 2013-03-20 |
| CN102983035B true CN102983035B (en) | 2015-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210477300.XA Active CN102983035B (en) | 2012-11-21 | 2012-11-21 | Three phase earthing switch structure driven by duplex pull rods and distributed in I shape |
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| CN (1) | CN102983035B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104979127B (en) * | 2015-06-26 | 2018-01-09 | 中国西电电气股份有限公司 | A kind of three-phase ganged transmission device of high-voltage switch gear |
| CN111342377B (en) * | 2020-02-28 | 2024-03-26 | 广东电网有限责任公司 | Maintenance tool and maintenance method for replacing anchor ear of ALSTOM isolating switch without power failure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0391339A2 (en) * | 1989-04-05 | 1990-10-10 | Ruhrtal-Elektrizitätsgesellschaft Hartig GmbH & Co. | High voltage switch gear |
| CN2881930Y (en) * | 2004-02-02 | 2007-03-21 | 范高潮 | Outdoor high-voltage isolating switch |
| CN201041782Y (en) * | 2007-06-01 | 2008-03-26 | 山东泰开隔离开关有限公司 | Two-step action three-phase AC outdoor high-voltage ground switch |
| CN201430103Y (en) * | 2009-05-31 | 2010-03-24 | 山东泰开隔离开关有限公司 | Single-post single-arm vertical retractable outdoor three-phase high-voltage alternating-current isolating switch |
| CN202159619U (en) * | 2011-07-20 | 2012-03-07 | 苏州苏高智能电气有限公司 | Main grounding knifeswitch linkage for outdoor high voltage AC isolation switch |
| CN202307657U (en) * | 2011-11-03 | 2012-07-04 | 川铁电气（天津）集团有限公司 | 126 kV outdoor AC high-voltage isolation switch |
| CN203013597U (en) * | 2012-11-21 | 2013-06-19 | 正泰电气股份有限公司 | Three-phase in-line arrangement earthing switch structure driven by double pull rods |
-
2012
- 2012-11-21 CN CN201210477300.XA patent/CN102983035B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0391339A2 (en) * | 1989-04-05 | 1990-10-10 | Ruhrtal-Elektrizitätsgesellschaft Hartig GmbH & Co. | High voltage switch gear |
| CN2881930Y (en) * | 2004-02-02 | 2007-03-21 | 范高潮 | Outdoor high-voltage isolating switch |
| CN201041782Y (en) * | 2007-06-01 | 2008-03-26 | 山东泰开隔离开关有限公司 | Two-step action three-phase AC outdoor high-voltage ground switch |
| CN201430103Y (en) * | 2009-05-31 | 2010-03-24 | 山东泰开隔离开关有限公司 | Single-post single-arm vertical retractable outdoor three-phase high-voltage alternating-current isolating switch |
| CN202159619U (en) * | 2011-07-20 | 2012-03-07 | 苏州苏高智能电气有限公司 | Main grounding knifeswitch linkage for outdoor high voltage AC isolation switch |
| CN202307657U (en) * | 2011-11-03 | 2012-07-04 | 川铁电气（天津）集团有限公司 | 126 kV outdoor AC high-voltage isolation switch |
| CN203013597U (en) * | 2012-11-21 | 2013-06-19 | 正泰电气股份有限公司 | Three-phase in-line arrangement earthing switch structure driven by double pull rods |
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| CN102983035A (en) | 2013-03-20 |
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