CN201444461U - Single-column vertical straight-swinging-type outdoor high-voltage AC grounding switch - Google Patents
Single-column vertical straight-swinging-type outdoor high-voltage AC grounding switch Download PDFInfo
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- CN201444461U CN201444461U CN2009200293882U CN200920029388U CN201444461U CN 201444461 U CN201444461 U CN 201444461U CN 2009200293882 U CN2009200293882 U CN 2009200293882U CN 200920029388 U CN200920029388 U CN 200920029388U CN 201444461 U CN201444461 U CN 201444461U
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Abstract
A single-column vertical straight-swinging-type outdoor high-voltage AC ground switch relates to high-voltage electrical apparatus and is used for the grounding of high-voltage electrical apparatus. The grounding switch comprises three monopoles which are connected via a horizontal transmission rod (4); each monopole comprises a pillar insulator (2), a fixed contact (3), a bracket (9), a square plate (6), a grounding knife-switch rotating shaft (14), a transmission connecting rod (10) and a grounding knife-switch pipe (1); the torque generated by an operating mechanism (8) of the middle phase monopole is transmitted to the grounding knife-switch pipe (1) via the transmission connecting rod (10) and the grounding knife-switch rotating shaft (14) for switching on and off; the other two monopoles operate synchronously via the horizontal transmission rod (4); a grounding knife-switch moving contact comprises two bent plates (15), a contact block (16) and a protection plate (17); the contact block (16) is fixed on the inner side of the bent plates (15) via bolts; the two bent plates (15) are fixedly connected with the protection plate (17) via fixing bolts; and the clamping force of the grounding knife-switch moving contact can be adjusted by adjusting nuts (20) on the outer side of the bent plates (15). The utility model has the characteristics of reasonable structure, reliable and steady switching on and off, excellent electrical properties, safety, durability and convenient maintenance.
Description
Technical field
The utility model relates to a kind of power transmission and transforming equipment in the electric power system, is specially the switching device that outdoor high-voltage electrical equipment in a kind of electric power system carries out reliable ground.
Background technology
Along with the development of domestic power technology, the increase of net capacity is taken up an area of in order to reduce the transmission of electricity corridor, adopts same tower double back transmission line to become the development trend of China's trunk rack.Same tower double back transmission line is when one backhauls another time of row maintenance, because Electrostatic Coupling and electromagnetic coupled effect between two back transmission lines, in the maintenance loop, will produce induced voltage and induced current, operating personnel's personal safety and the equipment that is overhauling will be worked the mischief.For guaranteeing reliability of operation and fail safe, the earthed switch of earthed switch that uses on the circuit and isolating switch attaching must have the ability of opening and closing induction current.And when maintenance is in order to ensure maintainer's safety, high-voltage electrical equipments such as high voltage bus, circuit breaker, instrument transformer, isolating switch need carry out reliable ground, requirement to earthed switch is more rigorous, divide-shut brake is unreliable, problems such as impact is big, and structural design is unreasonable become the hidden danger that influences the earthed switch safe handling.
Summary of the invention
The purpose of this utility model provides a kind ofly carries out reliable ground to high-voltage electrical equipment, smooth operation safety, and outdoor high voltage AC earthing switch rational in infrastructure, long-lived.
A kind of straight-wheel outdoor high voltage AC earthing switch with single columns vertical, comprise three one poles that form three-phase, each one pole comprises post insulator, fixed contact, support, side's plate, ground swivel axle, kinematic link, ground cutter pipe, fixed contact is arranged on the pedestal of post insulator top, side's plate is fixed between support and the post insulator, ground cutter pipe is by on the swivel axle side of being fixed on, the ground plate, middle phase one pole is equipped with operating mechanism, operating mechanism is connected with single channel-section steel by rotary flange, on single channel-section steel side of being fixedly mounted on plate, the axis of operating mechanism is fixedlyed connected with transmission crank arm I, transmission crank arm I and kinematic link are hinged, kinematic link is hinged with the transmission arm of ground swivel axle one end, the ground swivel axle other end is fixedlyed connected with ground cutter pipe, the transmission crank arm II of middle phase one pole is connected by the transmission crank arm II of horizontal drive link with other two one poles, and transmission crank arm I and transmission crank arm II carry out simultaneous operation; Ground cutter moving contact is arranged on ground cutter tube end, comprises two bent plates, contact block, and contact block is by being bolted to the bent plate inboard, and fastening with the bent plate nut outside, two bent plates, one end be fixed on the cutter pipe, the other end is fixedly connected by bolt and backplate.
The inboard center of described backplate is provided with rubber cushion blocks, the impact when closing a floodgate in order to buffering.
Straight-wheel outdoor high voltage AC earthing switch with single columns vertical also comprises ground cutter splitting lock cushioning device, and the block rubber that comprises the gas piston that is fixedly connected with square plate and be arranged on piston tip is formed.
Be provided with dome type protective cover between described fixed contact feeler lever and the contact base, contact base is fixedly connected by elasticity bent plate and pedestal.
The other end of described ground cutter pipe is provided with the weight counterweight.
The body of described ground cutter pipe is the square aluminum pipe, and the band that is flexible coupling that ground cutter Guan Yufang plate connects is copper material.
The utility model is implemented principle: the operation operating mechanism produces moment of torsion, transmission crank arm I by connecting successively, kinematic link, the swivel axle impel ground cutter pipe to carry out the on/off switch running, middle phase one pole impels three single-stages to carry out simultaneous operation by transmission crank arm II, horizontal drive link.
The clamping force of the ground cutter moving contact of ground of the present utility model cutter pipe can be regulated by the nut location of regulating bent plate outside set bolt; The actuating structure adopts single channel-section steel to support, channel-section steel intensity height, and saved processing cost and material cost in a large number, and assembly process is simplified; Ground cutter splitting lock cushioning is on the basis of using block rubber, block rubber is assemblied in an end of a gas piston, piston moves in air bag when being subjected to external impacts, to impact potential energy dissolves, reach separating brake effect stably, avoided the rebound phenomena of the ground cutter contact tube behind the separating brake, the fixing setting of weight counterweight and fixed contact elasticity bent plate makes feed motion steadily reliable; Ground cutter pipe adopts square aluminum pipe, and area of dissipation is big, and it is that material has improved electric electric conductivity that current-carrying parts such as the band that is flexible coupling adopt copper.
That the straight-wheel outdoor high voltage AC earthing switch with single columns vertical that the utility model provides possesses is simple and reasonable, divide-shut brake impact little, stable action reliable, the characteristics of excellent electrical properties, easy to operate, safety durable.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is a base assembly structure schematic diagram among Fig. 1;
Fig. 3 is the vertical view of Fig. 2;
Fig. 4 be among Fig. 1 cutter tubular construction schematic diagram;
Fig. 5 be among Fig. 4 C-C to diagram.
Embodiment
As shown in the drawing: a kind of straight-wheel outdoor high voltage AC earthing switch with single columns vertical, comprise three one poles that form three-phase, each one pole comprises post insulator 2, fixed contact 3, support 9, side's plate 6, ground swivel axle 14, kinematic link 10, ground cutter pipe 1, fixed contact 3 is arranged on the post insulator 2 top pedestals, side's plate 6 is fixed between support 9 and the post insulator 2, ground cutter pipe 1 is by on ground swivel axle 14 side's of being fixed on plates 6, middle phase one pole is equipped with operating mechanism 8, operating mechanism 8 is connected with single channel-section steel 7 by rotary flange, on single channel-section steel 7 side's of being fixedly mounted on plates 6, channel-section steel intensity height, and processing cost and material cost have been saved in a large number, and assembly process is simplified, the axis of operating mechanism 8 is fixedlyed connected with transmission crank arm I11, transmission crank arm I11 and kinematic link 10 are hinged, kinematic link 10 is hinged with the transmission arm of ground swivel axle 14 1 ends, ground swivel axle 14 other ends are fixedlyed connected with ground cutter pipe 1, the transmission crank arm II12 of middle phase one pole is connected with the transmission crank arm II of other two one poles by horizontal drive link 4, and transmission crank arm I11 and transmission crank arm II12 carry out simultaneous operation; Ground cutter moving contact is arranged on cutter pipe 1 end, ground, comprise two bent plates 15, contact block 16, contact block 16 is by being bolted to bent plate 15 inboards, and it is fastening with bent plate 15 nut outside, regulate the clamping force of ground cutter moving contact by adjusting nut 20, two bent plates, 15 1 ends are fixed on the ground cutter pipe 1, and the other end is fixedly connected by bolt and backplate 17.
Described backplate 17 inboard centers are provided with rubber cushion blocks 18 between two bent plates, the 15 inboard contact blocks 16, are fixed on the impact when closing a floodgate in order to buffering ground cutter pipe 1 of rubber cushion blocks 18 on the backplate 17.
Straight-wheel outdoor high voltage AC earthing switch with single columns vertical also comprises ground cutter splitting lock cushioning device 21, comprise gas piston that is fixedly connected with square plate 6 and the block rubber that is arranged on piston tip composition, can further alleviate the impulse force that ground cutter pipe 1 sub-switching operation produces, avoid rebound phenomena.
Be provided with dome type protective cover between described fixed contact 3 feeler levers and the contact base; fixed contact 3 and ground cutter moving contact are played the certain protection effect; contact base is fixedly connected by elasticity bent plate and pedestal, can further cushion ground cutter pipe 1 when closing a floodgate to the impact of fixed contact 3.
The other end of described ground cutter pipe 1 is provided with weight 19 counterweights, in order to the breaking-closing operating impact of buffering ground cutter pipe 1.
The body of described ground cutter pipe 1 is the square aluminum pipe, and the band that is flexible coupling that ground cutter pipe 1 is connected with square plate 6 is copper material, improves the electric conductivity of earthed switch.
Operation principle is: the moment of torsion that the operating mechanism 8 of straight-wheel outdoor high voltage AC earthing switch with single columns vertical produces, transmission crank arm I11 by connecting successively, kinematic link 10, swivel axle 14 impel ground cutter pipe 1 to carry out the on/off switch running, middle phase one pole impels three single-stages to carry out simultaneous operation by transmission crank arm II12, horizontal drive link 4.
Claims (6)
1. straight-wheel outdoor high voltage AC earthing switch with single columns vertical, comprise three one poles that form three-phase, each one pole comprises post insulator (2), fixed contact (3), support (9), side's plate (6), ground swivel axle (14), kinematic link (10), ground cutter pipe (1), fixed contact (3) is arranged on the pedestal of post insulator (2) top, side's plate (6) is fixed between support (9) and the post insulator (2), ground cutter pipe (1) is by on ground swivel axle (14) side's of being fixed on plate (6), middle phase one pole is equipped with operating mechanism (8), it is characterized in that: operating mechanism (8) is connected with single channel-section steel (7) by rotary flange, on single channel-section steel (7) side's of being fixedly mounted on plate (6), the axis of operating mechanism (8) and transmission crank arm I (11) are fixedly connected, transmission crank arm I (11) is hinged with kinematic link (10), kinematic link (10) is hinged with the transmission arm of ground swivel axle (14) one ends, ground swivel axle (14) other end is fixedlyed connected with ground cutter pipe (1), and the transmission crank arm II of middle phase one pole (12) is connected with the transmission crank arm II of other two one poles by horizontal drive link (4); Ground cutter moving contact is arranged on cutter pipe (1) end, ground, comprise two bent plates (15), contact block (16), contact block (16) is by being bolted to bent plate (15) inboard, and it is fastening with nut (20) in the bent plate outside, bent plate (15) one ends are fixed on the ground cutter pipe (1), and the other end is fixedly connected by bolt and backplate (17).
2. straight-wheel outdoor high voltage AC earthing switch with single columns vertical according to claim 1 is characterized in that: the inboard center of described backplate (17) is provided with rubber cushion blocks (18).
3. straight-wheel outdoor high voltage AC earthing switch with single columns vertical according to claim 1 is characterized in that: also comprise ground cutter splitting lock cushioning device (21), comprise gas piston that is fixedly connected with square plate (6) and the block rubber that is arranged on piston tip composition.
4. straight-wheel outdoor high voltage AC earthing switch with single columns vertical according to claim 1 is characterized in that: be provided with dome type protective cover between the feeler lever of described fixed contact (3) and the contact base, contact base is fixedly connected by elasticity bent plate and pedestal.
5. straight-wheel outdoor high voltage AC earthing switch with single columns vertical according to claim 1 is characterized in that: the other end of ground cutter pipe (1) is provided with weight (19) counterweight.
6. straight-wheel outdoor high voltage AC earthing switch with single columns vertical according to claim 1 is characterized in that: the body of ground cutter pipe (1) is the square aluminum pipe, and the band that is flexible coupling that ground cutter pipe (1) is connected with square plate (6) is copper material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200293882U CN201444461U (en) | 2009-07-10 | 2009-07-10 | Single-column vertical straight-swinging-type outdoor high-voltage AC grounding switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200293882U CN201444461U (en) | 2009-07-10 | 2009-07-10 | Single-column vertical straight-swinging-type outdoor high-voltage AC grounding switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201444461U true CN201444461U (en) | 2010-04-28 |
Family
ID=42549142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200293882U Expired - Lifetime CN201444461U (en) | 2009-07-10 | 2009-07-10 | Single-column vertical straight-swinging-type outdoor high-voltage AC grounding switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201444461U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101604593B (en) * | 2009-07-10 | 2012-05-30 | 山东泰开隔离开关有限公司 | Single columns vertical straight-wheel outdoor high voltage AC earthing switch |
-
2009
- 2009-07-10 CN CN2009200293882U patent/CN201444461U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101604593B (en) * | 2009-07-10 | 2012-05-30 | 山东泰开隔离开关有限公司 | Single columns vertical straight-wheel outdoor high voltage AC earthing switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100428 Effective date of abandoning: 20090710 |