CN102983035A - 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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- CN102983035A CN102983035A CN201210477300XA CN201210477300A CN102983035A CN 102983035 A CN102983035 A CN 102983035A CN 201210477300X A CN201210477300X A CN 201210477300XA CN 201210477300 A CN201210477300 A CN 201210477300A CN 102983035 A CN102983035 A CN 102983035A
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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 of using as outdoor AC high-voltage isolating switch attaching divides, moves in the same plane inter-sync when closing a floodgate, being rods arranged in horizontal line arranges, earthing drives with duplex pull rod, the adjustable self-compression type earthed switch structure in installation site, be the key structure of outdoor high-voltage alternating current isolating switch in the high voltage power transmission and transforming system, belong to the high-voltage switch gear technical field.
Background technology
Usually the three-phase ground switch of the outdoor high-voltage alternating current isolating switch attaching layout that is arranged in parallel; minute; the three-phase ground cutter is to carry out in three planes that are parallel to each other during combined floodgate; every phase earthed switch is comprised of a fixed contact and a moving contact; when two contacts clamp fixed contact generation conductive contact at the parallel fingertip of two rows of closing position moving contact; the moving contact fingertip is that outer pressing spring keeps its clamping force that continues; when electrically contacting place heating or the unfavorable shunting of spring insulation, contact can cause all that spring crosses the thermal annealing permanent deformation; the forfeiture spring function; and then initiation fingertip clamping force die-offs; contact resistance increases suddenly, makes the overheated earthed switch that burns in loop.And usually the contact installation site is fixed, and can not adjust, and on-the-spot contact in service is subjected to external force that small distortion occurs just to open method and use.
Summary of the invention
The purpose of this invention is to provide a kind of three-phase ground switch and divide, move in the same plane inter-sync when closing a floodgate, be rods arranged in horizontal line and arrange that earthing drives with duplex pull rod, move in the same plane inter-sync when earthed switch closes a floodgate; Only rely on the elasticity of moving contact fingertip electric conducting material itself to come moving contact is kept its clamping force that continues 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 has 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 that is 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 respectively A phase static contact component, 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, between A phase rotating shaft two ends and B phase rotating shaft two ends and between B phase rotating shaft two ends and C phase rotating shaft two ends, be connected with respectively an alternate pull bar, the rotating shaft of A phase, the rotating shaft of B phase or C phase rotating shaft connection for transmission device, transmission device connects mutually with operating mechanism, wherein:
Transmission device comprises the output connecting rod, one end of output connecting rod connects mutually with operating mechanism, the other end is held tightly by anchor ear device with the axle of output toggle arm and is connected, middle adjustable connecting-rod respectively and between the connecting lever plate of output toggle arm and with the input connecting lever between form and be 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 conduction briquetting clamp Al pipe butt welding fingertip bearing, the copper material fingertip is two rows and is pressed in the slotted hole of Al pipe butt welding fingertip bearing front end, holds the rotating shaft of A phase, the rotating shaft of B phase or the rotating shaft of C phase tightly with the anchor ear that supporting bracket is fixing.
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 the 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 the described copper material fingertip by pressing plate and screw rod.
Preferably, every described copper material fingertip front end is finger type and outwardly-bent, and the described copper material fingertip of two rows is symmetrically arranged, and forms the horn mouth shape.
During combined floodgate, by 90 ° of corners of operating mechanism output, by middle four-bar linkage structure transmission device, the pulling contact turns clockwise 85 ° in vertical plane, make moving contact be pressed into fixed contact and finish combined floodgate.Otherwise finish separating brake.At open position, earthed switch forms a fracture that significantly has reliable insulation.
In the present invention, the moving contact fingertip is that front end is finger type and bandy round copper rod structure, and two rows are symmetrically arranged during installation, form the horn mouth shape, have preferably guide effect.Circle copper rod material can continue to keep moving contact to the pressure of fixed contact, has guaranteed through-flow effect.Contact and fingertip have preferably automatically cleaning, self-adjusting function.
Design feature of the present invention is: 1, the three-phase ground cutter divides, moves in the same plane inter-sync when closing a floodgate, and is rods arranged in horizontal line and arranges; 2, the oneself of moving contact fingertip special material institute compresses sexual function, does not need external spring, and is simple in structure reliable; 3, moving contact two row's fingertips can be selected fingertip quantity according to size of current, increase versatility and flexibility; 4, movable contact conducting bar adopts the aluminium-alloy pipe welding, and it is lightweight, and low cost of manufacture is easy to produce; 5, moving contact two row's fingertip horn mouth shape and the board-like copper contact front end of fixed contact wedge structures can reduce the combined floodgate resistance; 6, moving contact and fixed contact position can both appropriately adjust when mounted, and convenient the installation is conducive to adjust; 7, form the fracture that significantly has reliable insulation when open position, coefficient of safety is high; 8, three-phase ground cutter duplex pull rod drives, and the whole torsional deflection of earthed switch weakens, and increases accuracy of action.
Advantage of the present invention is: main conducting element has self-compression ability, and simple in structure, dependable performance, whole earthed switch are dismountable structure, and convenient the installation is conducive to adjust.The large I of current capability of the switcher is adjusted by increasing or reduce moving contact fingertip quantity, and is convenient, flexible, of many uses.
Description of drawings
Fig. 1 is that the three-phase rods arranged in horizontal line that a kind of duplex pull rod provided by the invention drives is arranged the front view of earthed switch structure;
Fig. 2 is that the three-phase rods arranged in horizontal line that a kind of duplex pull rod provided by the invention drives is arranged the vertical view of earthed switch structure;
Fig. 3 is that the three-phase rods arranged in horizontal line that a kind of duplex pull rod provided by the invention drives is arranged the vertical view of the another kind of annexation of earthed switch structure;
Fig. 4 is the moving contact component schematic diagram;
Fig. 5 is the static contact component schematic diagram.
Embodiment
For the present invention is become apparent, hereby with preferred embodiment, and cooperate accompanying drawing 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 is arranged the earthed switch structure, comprise the A phase moving contact component 2-1 that is 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, the end of B phase moving contact component 2-2 and C phase moving contact component 2-3 connects respectively A phase static contact component 1-1, 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 hold 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, are axially passing through retainer ring spacing.Between A phase rotating shaft 13-1 two ends and 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 with respectively an alternate pull bar 4, B phase rotating shaft 13-2 connection for transmission device, transmission device connects mutually with operating mechanism 5.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 ends connect mutually with operating mechanism 5, and the other end of output connecting rod 6 is held tightly by anchor ear device 7 with the axle of output toggle arm 9 and is connected.The bearing of output toggle arm 9 is loaded on the isolating switch base channel-section steel.The connecting lever plate of output toggle arm 9 links to each other with middle adjustable connecting-rod 10 1 ends by ball pin, and formation is rotatably connected; The other end of middle adjustable connecting-rod 10 links to each other with input connecting lever 3 also to form by pin and oscillating bearing and is rotatably connected.Input connecting lever 3 is fixed on the B phase rotating shaft 13-2 by pin.Output toggle arm 9, middle adjustable connecting-rod 10, input connecting lever 3 form the space four-links structure.Input connecting lever 3 is connected with alternate pull bar 4 pins, consists of 2 groups of parallel four-bar linkage structures.Bent plate bearing 11 is fixed on isolating switch base channel-section steel end by Bolt Connection.Between A phase bent plate bearing 11-1 and C phase bent plate bearing 11-3 torsion spring 14 is housed, between B phase bent plate bearing 11-2 fan-shaped interlock plate 12 is housed.
The output torque of operating mechanism 5 through the space four-links structure of transmission device and two parallel four-bar linkage structures, is converted into input torque with this output torque, offers moving contact, thereby makes the moving contact 85 ° of angles that turn clockwise rotate and be pressed into fixed contact.And then finish combined floodgate.The earthed switch both sides are used for the torsion spring 14 release torsion of balanced dynamic contact and support component 2 gravity mutually simultaneously, the fan-shaped interlock plate 12 of middle phase also enters Interlock Status along 85 ° of angles of quiet hour hands rotation, can not close a floodgate with the isolating switch that earthed switch is equipped with this moment, realized accurate interlocking.The conductive arm of the isolating switch that fixed contact and earthed switch are equipped links, and moving contact has just formed unobstructed grounded circuit through the effective grounding that is flexible coupling behind the dynamic and static like this contact closing, has realized the use 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 with supporting bracket 15 by bolt, and copper material fingertip 19 is two rows by screw-nut and is pressed in the slotted hole of Al pipe butt welding fingertip bearing 18 front ends.More than as integral body, hold tightly on A phase rotating shaft 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 that 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 ends, is contained in I-shaped bearing 22 lower surfaces with copper coin formula fixed contact 23 by bolt again, above assembling is clamped on the isolating switch acting arm by screw rod 21 and pressing plate 20.I-shaped bearing 22 upper surfaces and isolating switch acting arm form conductive contact, lower surface and copper coin formula fixed contact 23 conductive contacts.Fixed contact can vertically appropriately adjust at conductive arm.Guide vane end stop 24 plays position-limiting action when dynamic and static contact closes a floodgate, can prevent from breaking away from when the moving contact anglec of rotation is excessive fixed contact.
Claims (4)
1. the three-phase rods arranged in horizontal line of a duplex pull rod driving is arranged the earthed switch structure, it is characterized in that: comprise the A phase moving contact component (2-1) that is 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 respectively A phase static contact component (1-1), 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), between A phase rotating shaft (13-1) two ends and 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 with respectively an alternate pull bar (4), 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 connects mutually with operating mechanism (5), wherein:
Transmission device comprises output connecting rod (6), one end of output connecting rod (6) connects mutually with operating mechanism (5), the other end is held tightly by anchor ear device (7) with the axle of output toggle arm (9) and is connected, middle adjustable connecting-rod (10) respectively and between the connecting lever plate of output toggle arm (9) and with input connecting lever (3) between form and be 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 of a kind of duplex pull rod driving as claimed in claim 1 is arranged the 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) clamps Al pipe butt welding fingertip bearing (18) with aluminium conduction briquetting (16), copper material fingertip (19) is two rows and is pressed in the slotted hole of Al pipe butt welding fingertip bearing (18) front end, holds A phase rotating shaft (13-1) tightly with the anchor ear (17) that supporting bracket (15) is fixing, B phase rotating shaft (13-2) or C phase rotating shaft (13-3).
3. the three-phase rods arranged in horizontal line of a kind of duplex pull rod driving as claimed in claim 2 is arranged the 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 the copper coin formula fixed contact (23), copper coin formula fixed contact (23) is connected and fixed with I-shaped bearing (22), and I-shaped bearing (22) is clamped on the described copper material fingertip (19) by pressing plate (20) and screw rod (21).
4. the three-phase rods arranged in horizontal line of a kind of duplex pull rod driving as claimed in claim 2 is arranged the earthed switch structure, it is characterized in that: every described copper material fingertip (19) front end is finger type and outwardly-bent, the two described copper material fingertips of row (19) are symmetrically arranged, and form the 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 true CN102983035A (en) | 2013-03-20 |
| CN102983035B 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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| Country | Link |
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| CN (1) | CN102983035B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104979127A (en) * | 2015-06-26 | 2015-10-14 | 中国西电电气股份有限公司 | Three-phase linked transmission device of high-voltage switch |
| CN111342377A (en) * | 2020-02-28 | 2020-06-26 | 广东电网有限责任公司 | Maintenance tool and maintenance method for replacing anchor ear of ALSTOM disconnecting 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104979127A (en) * | 2015-06-26 | 2015-10-14 | 中国西电电气股份有限公司 | Three-phase linked transmission device of high-voltage switch |
| CN111342377A (en) * | 2020-02-28 | 2020-06-26 | 广东电网有限责任公司 | Maintenance tool and maintenance method for replacing anchor ear of ALSTOM disconnecting switch without power failure |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102983035B (en) | 2015-01-28 |
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