CN213400973U - Isolation-grounding three-position switch - Google Patents
Isolation-grounding three-position switch Download PDFInfo
- Publication number
- CN213400973U CN213400973U CN202022394561.8U CN202022394561U CN213400973U CN 213400973 U CN213400973 U CN 213400973U CN 202022394561 U CN202022394561 U CN 202022394561U CN 213400973 U CN213400973 U CN 213400973U
- Authority
- CN
- China
- Prior art keywords
- isolation
- grounding
- bevel gear
- isolating
- main shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000002955 isolation Methods 0.000 claims abstract description 60
- 230000003068 static effect Effects 0.000 claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 230000009347 mechanical transmission Effects 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 239000003822 epoxy resin Substances 0.000 description 5
- 229920000647 polyepoxide Polymers 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000002146 bilateral effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
Images
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model provides an keep apart-three station switches of ground connection, belongs to electric power system middling pressure switchgear technical field, mechanical transmission control unit includes operation main shaft, steering spindle, steering bevel gear, transmission bevel gear, steering spindle one end is equipped with the steering bevel gear, the steering spindle links to each other with the meshing of transmission bevel gear through the steering bevel gear with the operation main shaft, the operation main shaft is articulated with insulating pull rod and is connected, the insulating pull rod other end links to each other with the isolation blade, the isolation blade links to each other with the post that goes out the line of keeping apart the body, isolation blade, isolation static contact link to each other with the isolation body, ground contact links to each other with the output connecting lever of operation main shaft, be equipped with the ground connection piece between. The switch has the advantages of compact structure, small volume, low operation and maintenance cost, convenient combination, five-prevention interlocking function and capability of obviously reducing the investment of electric power facilities due to the isolation-grounding three-station switch.
Description
Technical Field
The utility model belongs to the technical field of electric power system middling pressure switchgear, concretely relates to keep apart-three station switches of ground connection.
Background
The earthing switch is key equipment in the power supply and distribution industry, and on the premise of meeting the normal earthing protection function, the earthing switch has closing capability, so that the accident rate of field operation overhaul workers can be greatly reduced, and the life safety of the field operation workers can be protected. The adoption of the three-station isolating-grounding switch is a safety guarantee for workers in the maintenance process. The switch cabinet is continuously developed towards the directions of safety, reliability, intelligence, environmental protection and miniaturization, so that the high performance and the high reliability of the grounding switch have profound significance for the development of the power industry. However, the existing power system grounding switch has the problems of weak performance, poor safety and reliability, large occupied space, certain economic loss brought to the country and the power users by the increase of manufacturing cost and operation and maintenance cost, and the like.
SUMMERY OF THE UTILITY MODEL
Based on the technical problem, the utility model provides an environmental protection aerifys three station switches of isolation-ground connection for cabinet, this switch compact structure, small, operation maintenance cost are low, the combination is convenient, possess five prevent interlocking function, have the three station switches of isolation-ground connection and can obviously reduce the electric power facility investment.
The utility model adopts the following technical scheme:
an isolation-grounding three-station switch comprises a mechanical transmission control unit, an isolation switch unit and a grounding switch unit, wherein the mechanical transmission control unit comprises an operation main shaft, a steering bevel gear and a transmission bevel gear, the steering bevel gear is arranged at one end of the steering shaft, the transmission bevel gear matched with the steering bevel gear is arranged at one end of the operation main shaft, the steering shaft and the operation main shaft are meshed and connected with the transmission bevel gear through the steering bevel gear, the operation main shaft is hinged and connected with an insulating pull rod, the other end of the insulating pull rod is connected with an isolation blade, the isolation switch unit comprises an isolation body, an insulating pull rod, isolation blades, an isolation static contact and a spring pressure assembly, the isolation blades are connected with an outlet column of the isolation body, the isolation blades are provided with three groups, and the spring pressure assembly is, the isolation blade and the isolation static contact are connected with the isolation body, the grounding switch unit comprises a grounding contact, a grounding connecting sheet and an isolation blade grounding contact, the grounding contact is connected with an output connecting lever of the operation spindle, and the grounding connecting sheet is arranged between the grounding contacts.
Furthermore, the mechanical transmission control unit further comprises a U-shaped mounting support, a bearing seat is arranged on the U-shaped mounting support, and shaft shoulders at two ends of the operating main shaft are matched with bearings in the bearing seat to form rotary connection and are fixed on the mounting support.
Further, the isolation body is fixedly sealed with a mounting insert group, the mounting insert group is divided into a body mounting insert group and a static knife seat mounting insert group, and the static knife seat mounting insert group is connected with the isolation static contact.
Furthermore, a sealing groove is injected on the isolation body in a pressing mode, and a sealing ring is arranged in the sealing groove.
Furthermore, an output crank arm connected with the shaft is arranged on the operation main shaft, and the other end of the output crank arm is hinged with the insulating pull rod.
The utility model discloses an advantage and effect do:
the utility model discloses an environmental protection is aerifyd cabinet and is used isolation-three station switches of ground connection, compact structure, small, the operation maintenance cost is low, earthing switch has certain ability of closing, the operation of isolation-three station switches of ground connection is little, three stations reduce the complicated interlocking between the switch and can obviously reduce the electric power facility investment.
Drawings
FIG. 1 is a schematic structural diagram of an isolation-grounding three-position switch in an isolation state;
FIG. 2 is a schematic diagram of the isolation-grounding three-position switch in the isolated state;
FIG. 3 is a schematic diagram of the grounding state of the isolation-grounding three-position switch;
FIG. 4 is a schematic diagram of a side view of a closing state of an isolated grounding three-position switch;
FIG. 5 is a schematic diagram of a closing state of an isolated grounding three-position switch in a top view structure;
FIG. 6 is a schematic diagram of a main view structure of a closing state of an isolated grounding three-position switch;
FIG. 7 is a schematic structural view of the partition body and the side plate removed.
The components in the figure: 1 is an isolation body, 2 is a grounding contact, 3 is a bearing seat, 4 is a U-shaped mounting bracket, 5 is an operation main shaft, 6 is a steering shaft, 7 is a steering bevel gear, 8 is a transmission bevel gear, 9 is an insulating pull rod, 10 is an isolation blade, 11 is a grounding connecting sheet, 12 is an isolation static contact, 13 is a spring pressure component, 14 is a connecting pin, 15 is a contact, 16 is a side plate and 17 is an output crank arm.
Detailed Description
The following provides a further explanation of the present invention with reference to the drawings and examples.
The utility model relates to an isolation-ground connection three-station switch device, including earthing switch unit, isolator unit, mechanical transmission control unit includes operation main shaft, steering bevel gear, transmission bevel gear, U type installing support, is equipped with two parallel bearing frames on the U type installing support, and the operation main shaft forms the rotation connection through the shaft shoulder at axle both ends and the bearing cooperation in the bearing frame, and fixes on the installing support; a steering bevel gear is arranged at one end of the steering shaft, and a transmission bevel gear arranged at one end of the operation main shaft forms a matched steering gear; an output crank arm is arranged on the operation main shaft and is tightly connected with the shaft.
The isolating switch unit comprises a group of isolating blades, an isolating static contact, an insulating pull rod, an isolating body, a spring pressure assembly, a group of connecting pins and the like.
The group of isolation blades (material: pure copper is divided into three phases and six phases, and each phase of two bilateral symmetry types are installed on an outlet column of an isolation body. The pure copper is fixedly sealed in an isolation body formed by epoxy resin, the isolation body formed by epoxy resin is fixedly sealed with a mounting insert group, the mounting insert group comprises a body mounting insert group and a static cutter seat mounting insert group, an isolation static cutter seat is arranged on the static cutter seat mounting insert group of the isolation body and is divided into three groups, one in each group, a sealing groove is injected on the isolation body in a pressing way, the sealing ring is used for mounting the sealing ring; and a group of connecting pins are arranged on the insulating pull rod and connected with an operating main shaft crank arm of the mechanical transmission control unit.
And the grounding switch unit comprises a grounding contact, an isolation blade grounding contact, a grounding connecting sheet, a group of mounting bolts and the like.
The grounding contact is arranged on a crank arm of an operation main shaft of the isolating switch unit and rotates along with the operation main shaft; the contact of the isolating blade grounding switch and the isolating blade are of an integrated structure; the grounding connecting sheet is made of pure copper, and two grounding connecting sheets are arranged between the three-phase grounding contacts; a set of mounting bolts is used to mount the ground contact on the crank arm of the operating spindle.
Example 1
The utility model relates to an environmental protection is three station switches of isolation-ground connection for gas-insulated switchgear, including earthing switch unit, isolator unit, mechanical transmission control unit, including operation main shaft 5, steering spindle 6, steering bevel gear 7, transmission bevel gear 8, U type installing support 4, be equipped with two parallel bearing frames 3 on the U type installing support 4, operation main shaft 5 forms the rotation connection through the shaft shoulder at axle both ends and the bearing cooperation in the bearing frame 3, and fix on installing support 4; a steering bevel gear 7 is arranged at one end of the steering shaft 6, and a transmission bevel gear 7 arranged at one end of the operation main shaft 5 forms a matched steering gear; an output crank arm is arranged on the operation main shaft 5 and is tightly connected with the shaft.
The isolating switch unit comprises a group of isolating blades 10, an isolating static contact 12, an insulating pull rod 9, an isolating body 1, a spring pressure assembly 13, a group of connecting pins 14 and the like.
The set of the isolation blades 10 (material: the pure copper is divided into three phases and six phases, each phase of the two bilateral symmetry types is installed on an outgoing line column of the isolation body, the spring pressure assembly 13 is installed between the two isolation blades 10 and provides pretightening force and pressure for the isolation blades 10, and the isolation body 1 is formed by epoxy resin through APG (pressure gel technology pressure injection molding, the outgoing line column (material: the pure copper is fixedly sealed in the isolation body formed by epoxy resin, the isolation body formed by epoxy resin is fixedly sealed with a mounting embedded part group, the mounting insert group is an existing standard part, the mounting insert group comprises a body mounting insert group and a static cutter seat mounting insert group, the isolation static knife holder 12 is arranged on a static knife holder installation embedded part group of the isolation body and is divided into three groups, one in each group, a sealing groove is injected on the molding of the isolation body, the crank arm of the operation main shaft 5 of the mechanical transmission control unit is connected with the insulating pull rod 9 through a connecting pin 14.
The grounding switch unit comprises a grounding contact 2, an isolation blade grounding contact, a grounding connecting sheet 11, a group of mounting bolts and the like.
The grounding contact 2 is arranged on a crank arm of an operation main shaft 5 of the isolating switch unit and rotates along with the operation main shaft 5; the contact of the isolating blade grounding switch and the isolating blade are of an integrated structure; the grounding connecting sheet 11 is made of pure copper, and two pieces of the grounding connecting sheet are arranged between the three-phase grounding contacts 2; a set of mounting bolts is used to mount the ground contact 2 on the crank arm of the operating spindle 5.
The working principle is as follows:
the isolating-grounding three-station switch is characterized in that an external operating mechanism drives a steering shaft of a mechanical transmission control unit to rotate, a steering bevel gear on the steering shaft drives a transmission bevel gear matched with the steering shaft, the transmission bevel gear drives an operating main shaft fixedly matched with the transmission bevel gear to rotate, a crank arm on the operating main shaft rotates along with the operating main shaft to drive an insulating pull rod of an isolating switch unit, and the insulating pull rod drives an isolating blade to rotate around a wire outlet column mounting point on an isolating body. When the starting position of the isolating-grounding three-position switch is (when the horizontal direction of the steering shaft indicating groove is viewed from the front of the steering shaft, the positive included angle between the central line of the input crank arm and the horizontal line is 45 degrees, the isolating blade is tightly contacted with the isolating static knife holder under the pressure provided by the spring pressure assembly, the isolating-grounding three-position switch is in an isolating 'on' state, when the isolating steering shaft rotates clockwise 65 degrees, the isolating operation rotates anticlockwise 65 degrees, the crank arm on the isolating operation shaft drives the insulating pull rod, the isolating blade rotates around the mounting point of the wire outlet column, the stopping position is that the isolating-grounding switch is in a 'separating' brake position, when the steering shaft continues to rotate clockwise 35 degrees, the crank arm of the isolating operation shaft drives the insulating pull rod to continue to rotate, the pressure provided by the spring pressure assembly of the isolating blade is contacted with the grounding contact, and the isolating-grounding three-position switch is in a grounding 'on' state, the isolating Setting of three-position switches of isolation 'on', isolation 'off' and grounding 'on' of the three-position switch.
The isolating-grounding three-station switch is characterized in that an external operating mechanism drives a steering shaft of a mechanical transmission control unit to rotate, a steering bevel gear on the steering shaft drives a transmission bevel gear matched with the steering shaft, the transmission bevel gear drives an operating main shaft fixedly matched with the transmission bevel gear to rotate, a crank arm on the operating main shaft rotates along with the operating main shaft to drive an insulating pull rod of an isolating switch unit, and the insulating pull rod drives an isolating blade to rotate around a wire outlet column mounting point on an isolating body. When the starting position of the isolating-grounding three-position switch is set to be (when the steering shaft is viewed from the front of the steering shaft, the indication groove of the steering shaft is less vertical (the included angle between the central line of the input crank arm and the horizontal line is 100 degrees, the negative included angle between the central line of the input crank arm and the horizontal line is 55 degrees, the isolating blade is tightly contacted with the grounding knife static knife holder under the pressure provided by the spring pressure assembly, the isolating-grounding three-position switch is in a grounding 'closed' state, when the isolating steering shaft rotates anticlockwise by 35 degrees, the isolating operation rotates clockwise by 35 degrees, the crank arm on the isolating operation shaft drives the insulating pull rod to enable the isolating blade to rotate around the mounting point of the wire outlet column, the stopping position is that the isolating-grounding switch is in a 'separating' brake position, when the steering shaft rotates anticlockwise by 65 degrees, the crank arm of the isolating operation shaft drives the, the isolation grounding three-position switch is in an isolation 'on' state. The setting of the three-position switch of the isolation-grounding three-position switch, namely grounding 'on', grounding 'off' and isolation 'on', is realized through two operations of the external operating mechanism.
Claims (5)
1. An isolation-grounding three-position switch is characterized in that: the mechanical transmission control unit comprises an operation main shaft (5), a steering shaft (6), a steering bevel gear (7) and a transmission bevel gear (8), wherein the steering bevel gear (7) is arranged at one end of the steering shaft (6), the transmission bevel gear (8) matched with the steering bevel gear (7) is arranged at one end of the operation main shaft (5), the steering shaft (6) and the operation main shaft (5) are meshed and connected with the transmission bevel gear (8) through the steering bevel gear (7), the operation main shaft (5) is hinged and connected with an insulating pull rod (9), the other end of the insulating pull rod (9) is connected with an isolating blade (10), the isolating switch unit comprises an isolating body (1), the insulating pull rod (9), an isolating blade (10), an isolating static contact (12) and a spring pressure component (13), the isolation blade (10) is connected with an outlet column of the isolation body (1), the isolation blade (10) is provided with three groups, a spring pressure assembly (13) is arranged between each group of isolation blades (10), the isolation blade (10) and an isolation static contact (12) are connected with the isolation body (1), the grounding switch unit comprises a grounding contact (2), a grounding connecting piece (11) and an isolation blade grounding contact, the grounding contact (2) is connected with an output connecting lever of the operation spindle (5), and the grounding connecting piece (11) is arranged between the grounding contacts (2).
2. An isolating-grounding three-position switch according to claim 1, wherein: the mechanical transmission control unit further comprises a U-shaped mounting support (4), a bearing seat (3) is arranged on the U-shaped mounting support (4), and shaft shoulders at two ends of a warp beam of the operation main shaft (5) are matched with bearings in the bearing seat (3) to form rotary connection and are fixed on the mounting support (4).
3. An isolating-grounding three-position switch according to claim 1, wherein: the isolation body (1) is fixedly sealed with a mounting embedded part group, the mounting embedded part group is divided into a body mounting embedded part group and a static knife seat mounting embedded part group, and the static knife seat mounting embedded part group is connected with the isolation static contact (12).
4. An isolating-grounding three-position switch according to claim 1, wherein: a sealing groove is injected on the isolation body (1) in a pressing mode, and a sealing ring is arranged in the sealing groove.
5. An isolating-grounding three-position switch according to claim 1, wherein: an output crank arm (17) connected with the shaft is arranged on the operation main shaft (5), and the other end of the output crank arm (17) is hinged with the insulating pull rod (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022394561.8U CN213400973U (en) | 2020-10-26 | 2020-10-26 | Isolation-grounding three-position switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022394561.8U CN213400973U (en) | 2020-10-26 | 2020-10-26 | Isolation-grounding three-position switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213400973U true CN213400973U (en) | 2021-06-08 |
Family
ID=76190356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022394561.8U Active CN213400973U (en) | 2020-10-26 | 2020-10-26 | Isolation-grounding three-position switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213400973U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112201515A (en) * | 2020-10-26 | 2021-01-08 | 沈阳昊诚电气有限公司 | Isolation-grounding three-position switch |
-
2020
- 2020-10-26 CN CN202022394561.8U patent/CN213400973U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112201515A (en) * | 2020-10-26 | 2021-01-08 | 沈阳昊诚电气有限公司 | Isolation-grounding three-position switch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106373821A (en) | Double-break disconnector switch module | |
| CN101145677B (en) | Special gas insulation combined appliance for electric railroad | |
| CN202159923U (en) | Intelligent inflatable high-voltage vacuum switch cabinet for metros | |
| CN201332048Y (en) | Air-insulated vacuum load switch | |
| CN213400973U (en) | Isolation-grounding three-position switch | |
| CN102916362A (en) | Intelligent inflatable high-pressure vacuum switch cabinet for metro | |
| CN107800068B (en) | Environment-friendly gas-insulated switchgear | |
| CN106024498B (en) | A kind of vacuum circuit breaker | |
| CN202159922U (en) | Solid insulation high-temperature vacuum switch cabinet using environmentally-friendly gas | |
| CN112201515A (en) | Isolation-grounding three-position switch | |
| CN207559418U (en) | A kind of gas-insulated ring network cabinet metal enclosed switchgear | |
| CN214227604U (en) | A fully sealed C-GIS switchgear | |
| CN113539735B (en) | Three-station isolating switch for urban rail transit and application method thereof | |
| CN208336080U (en) | C-GIS high-voltage AC breaker | |
| CN209015972U (en) | A kind of novel three-station structure for gas-filling cabinet | |
| CN214411036U (en) | Direct-acting grounding switch for environment-friendly gas cabinet | |
| CN205452210U (en) | 10KV aerifys looped netowrk cabinet killer switch | |
| CN219759445U (en) | Double-group disconnecting link type isolating switch structure | |
| CN219106003U (en) | Three-station isolating switch | |
| CN208908321U (en) | A kind of switchgear switch unit | |
| CN2575834Y (en) | Mini bulb | |
| CN105655211A (en) | 10KV air inflation ring main unit circuit breaker switch | |
| CN220774155U (en) | Protective upper isolation breaker switch | |
| CN223006701U (en) | A three-position disconnector with self-locking function in opening and closing positions | |
| CN2177289Y (en) | High voltage fall-down type protective switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |